Linux v4.17.2
This commit is contained in:
parent
a98ecb2de3
commit
b1f098774e
@ -1,72 +0,0 @@
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From b42db0860e13067fcc7cbfba3966c9e652668bbc Mon Sep 17 00:00:00 2001
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From: Eric Sandeen <sandeen@sandeen.net>
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Date: Mon, 16 Apr 2018 23:06:53 -0700
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Subject: [PATCH] xfs: enhance dinode verifier
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Add several more validations to xfs_dinode_verify:
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- For LOCAL data fork formats, di_nextents must be 0.
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- For LOCAL attr fork formats, di_anextents must be 0.
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- For inodes with no attr fork offset,
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- format must be XFS_DINODE_FMT_EXTENTS if set at all
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- di_anextents must be 0.
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Thanks to dchinner for pointing out a couple related checks I had
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forgotten to add.
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Signed-off-by: Eric Sandeen <sandeen@redhat.com>
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Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199377
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Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
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Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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---
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fs/xfs/libxfs/xfs_inode_buf.c | 21 +++++++++++++++++++++
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1 file changed, 21 insertions(+)
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diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
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index ef68b1de006a..1201107eabc6 100644
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--- a/fs/xfs/libxfs/xfs_inode_buf.c
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+++ b/fs/xfs/libxfs/xfs_inode_buf.c
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@@ -466,6 +466,8 @@ xfs_dinode_verify(
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return __this_address;
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if (di_size > XFS_DFORK_DSIZE(dip, mp))
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return __this_address;
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+ if (dip->di_nextents)
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+ return __this_address;
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/* fall through */
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case XFS_DINODE_FMT_EXTENTS:
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case XFS_DINODE_FMT_BTREE:
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@@ -484,12 +486,31 @@ xfs_dinode_verify(
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if (XFS_DFORK_Q(dip)) {
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switch (dip->di_aformat) {
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case XFS_DINODE_FMT_LOCAL:
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+ if (dip->di_anextents)
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+ return __this_address;
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+ /* fall through */
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case XFS_DINODE_FMT_EXTENTS:
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case XFS_DINODE_FMT_BTREE:
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break;
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default:
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return __this_address;
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}
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+ } else {
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+ /*
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+ * If there is no fork offset, this may be a freshly-made inode
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+ * in a new disk cluster, in which case di_aformat is zeroed.
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+ * Otherwise, such an inode must be in EXTENTS format; this goes
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+ * for freed inodes as well.
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+ */
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+ switch (dip->di_aformat) {
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+ case 0:
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+ case XFS_DINODE_FMT_EXTENTS:
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+ break;
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+ default:
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+ return __this_address;
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+ }
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+ if (dip->di_anextents)
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+ return __this_address;
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}
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/* only version 3 or greater inodes are extensively verified here */
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--
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2.17.0
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@ -1,45 +0,0 @@
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From 2c4306f719b083d17df2963bc761777576b8ad1b Mon Sep 17 00:00:00 2001
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From: Eric Sandeen <sandeen@redhat.com>
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Date: Mon, 16 Apr 2018 23:07:27 -0700
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Subject: [PATCH] xfs: set format back to extents if xfs_bmap_extents_to_btree
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If xfs_bmap_extents_to_btree fails in a mode where we call
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xfs_iroot_realloc(-1) to de-allocate the root, set the
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format back to extents.
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Otherwise we can assume we can dereference ifp->if_broot
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based on the XFS_DINODE_FMT_BTREE format, and crash.
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Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199423
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Signed-off-by: Eric Sandeen <sandeen@redhat.com>
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Reviewed-by: Christoph Hellwig <hch@lst.de>
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Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
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Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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---
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fs/xfs/libxfs/xfs_bmap.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
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index 6a7c2f03ea11..040eeda8426f 100644
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--- a/fs/xfs/libxfs/xfs_bmap.c
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+++ b/fs/xfs/libxfs/xfs_bmap.c
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@@ -725,12 +725,16 @@ xfs_bmap_extents_to_btree(
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*logflagsp = 0;
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if ((error = xfs_alloc_vextent(&args))) {
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xfs_iroot_realloc(ip, -1, whichfork);
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+ ASSERT(ifp->if_broot == NULL);
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+ XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_EXTENTS);
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xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
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return error;
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}
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if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) {
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xfs_iroot_realloc(ip, -1, whichfork);
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+ ASSERT(ifp->if_broot == NULL);
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+ XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_EXTENTS);
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xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
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return -ENOSPC;
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}
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--
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2.17.0
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46
1-2-xen-netfront-Fix-mismatched-rtnl_unlock.patch
Normal file
46
1-2-xen-netfront-Fix-mismatched-rtnl_unlock.patch
Normal file
@ -0,0 +1,46 @@
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From patchwork Thu Jun 21 13:00:20 2018
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: [1/2] xen-netfront: Fix mismatched rtnl_unlock
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X-Patchwork-Submitter: Ross Lagerwall <ross.lagerwall@citrix.com>
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X-Patchwork-Id: 932721
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Message-Id: <20180621130021.27029-2-ross.lagerwall@citrix.com>
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To: <netdev@vger.kernel.org>
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Cc: Ross Lagerwall <ross.lagerwall@citrix.com>,
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Boris Ostrovsky <boris.ostrovsky@oracle.com>,
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Juergen Gross <jgross@suse.com>, "David S. Miller" <davem@davemloft.net>,
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<xen-devel@lists.xenproject.org>, <linux-kernel@vger.kernel.org>
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Date: Thu, 21 Jun 2018 14:00:20 +0100
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From: Ross Lagerwall <ross.lagerwall@citrix.com>
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List-Id: <netdev.vger.kernel.org>
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Fixes: f599c64fdf7d ("xen-netfront: Fix race between device setup and open")
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Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
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Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
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Reviewed-by: Juergen Gross <jgross@suse.com>
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---
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drivers/net/xen-netfront.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
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index 922ce0a..ee4cb6c 100644
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--- a/drivers/net/xen-netfront.c
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+++ b/drivers/net/xen-netfront.c
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@@ -1810,7 +1810,7 @@ static int talk_to_netback(struct xenbus_device *dev,
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err = xen_net_read_mac(dev, info->netdev->dev_addr);
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if (err) {
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xenbus_dev_fatal(dev, err, "parsing %s/mac", dev->nodename);
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- goto out;
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+ goto out_unlocked;
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}
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rtnl_lock();
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@@ -1925,6 +1925,7 @@ static int talk_to_netback(struct xenbus_device *dev,
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xennet_destroy_queues(info);
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out:
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rtnl_unlock();
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+out_unlocked:
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device_unregister(&dev->dev);
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return err;
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}
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@ -0,0 +1,58 @@
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From patchwork Thu Jun 21 13:00:21 2018
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: [2/2] xen-netfront: Update features after registering netdev
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X-Patchwork-Submitter: Ross Lagerwall <ross.lagerwall@citrix.com>
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X-Patchwork-Id: 932720
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Message-Id: <20180621130021.27029-3-ross.lagerwall@citrix.com>
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To: <netdev@vger.kernel.org>
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Cc: Ross Lagerwall <ross.lagerwall@citrix.com>,
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Boris Ostrovsky <boris.ostrovsky@oracle.com>,
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Juergen Gross <jgross@suse.com>, "David S. Miller" <davem@davemloft.net>,
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<xen-devel@lists.xenproject.org>, <linux-kernel@vger.kernel.org>,
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Liam Shepherd <liam@dancer.es>
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Date: Thu, 21 Jun 2018 14:00:21 +0100
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From: Ross Lagerwall <ross.lagerwall@citrix.com>
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List-Id: <netdev.vger.kernel.org>
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Update the features after calling register_netdev() otherwise the
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device features are not set up correctly and it not possible to change
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the MTU of the device. After this change, the features reported by
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ethtool match the device's features before the commit which introduced
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the issue and it is possible to change the device's MTU.
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Fixes: f599c64fdf7d ("xen-netfront: Fix race between device setup and open")
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Reported-by: Liam Shepherd <liam@dancer.es>
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Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
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Reviewed-by: Juergen Gross <jgross@suse.com>
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---
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drivers/net/xen-netfront.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
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index ee4cb6c..a57daec 100644
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--- a/drivers/net/xen-netfront.c
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+++ b/drivers/net/xen-netfront.c
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@@ -1951,10 +1951,6 @@ static int xennet_connect(struct net_device *dev)
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/* talk_to_netback() sets the correct number of queues */
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num_queues = dev->real_num_tx_queues;
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- rtnl_lock();
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- netdev_update_features(dev);
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- rtnl_unlock();
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-
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if (dev->reg_state == NETREG_UNINITIALIZED) {
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err = register_netdev(dev);
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if (err) {
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@@ -1964,6 +1960,10 @@ static int xennet_connect(struct net_device *dev)
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}
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}
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+ rtnl_lock();
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+ netdev_update_features(dev);
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+ rtnl_unlock();
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+
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/*
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* All public and private state should now be sane. Get
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* ready to start sending and receiving packets and give the driver
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16
README.txt
16
README.txt
@ -33,9 +33,9 @@ config heirarchy.
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Instead of having to maintain a config file for every arch variant we build on,
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the kernel spec uses a nested system of configs. Each option CONFIG_FOO is
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represented by a single file named CONFIG_FOO which contains the state (=y, =m,
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=n). These options are collected in the folder baseconfig. Architecture specifi
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options are set in nested folders. An option set in a nested folder will
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override the same option set in one of the higher levels.
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=n). These options are collected in the folder base-generic. Architecture
|
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specific options are set in nested folders. An option set in a nested folder
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will override the same option set in one of the higher levels.
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The individual CONFIG_FOO files only exist in the pkg-git repository. The RPM
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contains kernel-foo.config files which are the result of combining all the
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@ -45,10 +45,10 @@ script _must_ be run each time one of the options is changed.
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Example flow:
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# Enable the option CONFIG_ABC123 as a module for all arches
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echo "CONFIG_ABC123=m" > baseconfig/CONFIG_ABC1234
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echo "CONFIG_ABC123=m" > configs/base-generic/CONFIG_ABC1234
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# enable the option CONFIG_XYZ321 for only x86
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echo "# CONFIG_XYZ321 is not set" > baseconfig/CONFIG_XYZ321
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echo "CONFIG_XYZ321=m" > baseconfig/x86/CONFIG_XYZ321
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echo "# CONFIG_XYZ321 is not set" > configs/base-generic/CONFIG_XYZ321
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echo "CONFIG_XYZ321=m" > configs/base-generic/x86/CONFIG_XYZ321
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# regenerate the combined config files
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./build_configs.sh
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@ -72,7 +72,7 @@ the status quo to:
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This is done to increase coverage testing, as not many people actually
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run kernel-debug.
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The debug options are managed in a separate heierarchy under debugconfig. This
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works in a similar manner to baseconfig. More deeply nested folders, again,
|
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The debug options are managed in a separate heierarchy under base-debug. This
|
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works in a similar manner to base-generic. More deeply nested folders, again,
|
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override options. The file config_generation gives a listing of what folders
|
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go into each config file generated.
|
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|
@ -1,160 +0,0 @@
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From 5744a0927df22f46e4b7f134b3dfb405fdfcf6ce Mon Sep 17 00:00:00 2001
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From: Jeremy Cline <jeremy@jcline.org>
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Date: Wed, 2 May 2018 15:16:29 -0400
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Subject: [PATCH 1/2] Revert "random: use a different mixing algorithm for
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add_device_randomness()"
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|
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This reverts commit 89b59f050347d376c2ace8b1ceb908a218cfdc2e.
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|
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Signed-off-by: Jeremy Cline <jeremy@jcline.org>
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---
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drivers/char/random.c | 55 ++++---------------------------------------
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1 file changed, 4 insertions(+), 51 deletions(-)
|
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|
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diff --git a/drivers/char/random.c b/drivers/char/random.c
|
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index 8f4e11842c60..aa5b04af86c6 100644
|
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--- a/drivers/char/random.c
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+++ b/drivers/char/random.c
|
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@@ -831,10 +831,6 @@ static void numa_crng_init(void)
|
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static void numa_crng_init(void) {}
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#endif
|
||||
|
||||
-/*
|
||||
- * crng_fast_load() can be called by code in the interrupt service
|
||||
- * path. So we can't afford to dilly-dally.
|
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- */
|
||||
static int crng_fast_load(const char *cp, size_t len)
|
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{
|
||||
unsigned long flags;
|
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@@ -861,51 +857,6 @@ static int crng_fast_load(const char *cp, size_t len)
|
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return 1;
|
||||
}
|
||||
|
||||
-/*
|
||||
- * crng_slow_load() is called by add_device_randomness, which has two
|
||||
- * attributes. (1) We can't trust the buffer passed to it is
|
||||
- * guaranteed to be unpredictable (so it might not have any entropy at
|
||||
- * all), and (2) it doesn't have the performance constraints of
|
||||
- * crng_fast_load().
|
||||
- *
|
||||
- * So we do something more comprehensive which is guaranteed to touch
|
||||
- * all of the primary_crng's state, and which uses a LFSR with a
|
||||
- * period of 255 as part of the mixing algorithm. Finally, we do
|
||||
- * *not* advance crng_init_cnt since buffer we may get may be something
|
||||
- * like a fixed DMI table (for example), which might very well be
|
||||
- * unique to the machine, but is otherwise unvarying.
|
||||
- */
|
||||
-static int crng_slow_load(const char *cp, size_t len)
|
||||
-{
|
||||
- unsigned long flags;
|
||||
- static unsigned char lfsr = 1;
|
||||
- unsigned char tmp;
|
||||
- unsigned i, max = CHACHA20_KEY_SIZE;
|
||||
- const char * src_buf = cp;
|
||||
- char * dest_buf = (char *) &primary_crng.state[4];
|
||||
-
|
||||
- if (!spin_trylock_irqsave(&primary_crng.lock, flags))
|
||||
- return 0;
|
||||
- if (crng_init != 0) {
|
||||
- spin_unlock_irqrestore(&primary_crng.lock, flags);
|
||||
- return 0;
|
||||
- }
|
||||
- if (len > max)
|
||||
- max = len;
|
||||
-
|
||||
- for (i = 0; i < max ; i++) {
|
||||
- tmp = lfsr;
|
||||
- lfsr >>= 1;
|
||||
- if (tmp & 1)
|
||||
- lfsr ^= 0xE1;
|
||||
- tmp = dest_buf[i % CHACHA20_KEY_SIZE];
|
||||
- dest_buf[i % CHACHA20_KEY_SIZE] ^= src_buf[i % len] ^ lfsr;
|
||||
- lfsr += (tmp << 3) | (tmp >> 5);
|
||||
- }
|
||||
- spin_unlock_irqrestore(&primary_crng.lock, flags);
|
||||
- return 1;
|
||||
-}
|
||||
-
|
||||
static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
|
||||
{
|
||||
unsigned long flags;
|
||||
@@ -1089,8 +1040,10 @@ void add_device_randomness(const void *buf, unsigned int size)
|
||||
unsigned long time = random_get_entropy() ^ jiffies;
|
||||
unsigned long flags;
|
||||
|
||||
- if (!crng_ready() && size)
|
||||
- crng_slow_load(buf, size);
|
||||
+ if (!crng_ready()) {
|
||||
+ crng_fast_load(buf, size);
|
||||
+ return;
|
||||
+ }
|
||||
|
||||
trace_add_device_randomness(size, _RET_IP_);
|
||||
spin_lock_irqsave(&input_pool.lock, flags);
|
||||
--
|
||||
2.17.0
|
||||
|
||||
From e1b1b5b62740b0e6ea8258a4eb81b2a336538fed Mon Sep 17 00:00:00 2001
|
||||
From: Jeremy Cline <jeremy@jcline.org>
|
||||
Date: Wed, 2 May 2018 15:18:03 -0400
|
||||
Subject: [PATCH 2/2] Revert "random: fix crng_ready() test"
|
||||
|
||||
This reverts commit cd8d7a5778a4abf76ee8fe8f1bfcf78976029f8d.
|
||||
|
||||
Signed-off-by: Jeremy Cline <jeremy@jcline.org>
|
||||
---
|
||||
drivers/char/random.c | 10 +++++-----
|
||||
1 file changed, 5 insertions(+), 5 deletions(-)
|
||||
|
||||
diff --git a/drivers/char/random.c b/drivers/char/random.c
|
||||
index aa5b04af86c6..ef05cc685b74 100644
|
||||
--- a/drivers/char/random.c
|
||||
+++ b/drivers/char/random.c
|
||||
@@ -428,7 +428,7 @@ struct crng_state primary_crng = {
|
||||
* its value (from 0->1->2).
|
||||
*/
|
||||
static int crng_init = 0;
|
||||
-#define crng_ready() (likely(crng_init > 1))
|
||||
+#define crng_ready() (likely(crng_init > 0))
|
||||
static int crng_init_cnt = 0;
|
||||
static unsigned long crng_global_init_time = 0;
|
||||
#define CRNG_INIT_CNT_THRESH (2*CHACHA20_KEY_SIZE)
|
||||
@@ -838,7 +838,7 @@ static int crng_fast_load(const char *cp, size_t len)
|
||||
|
||||
if (!spin_trylock_irqsave(&primary_crng.lock, flags))
|
||||
return 0;
|
||||
- if (crng_init != 0) {
|
||||
+ if (crng_ready()) {
|
||||
spin_unlock_irqrestore(&primary_crng.lock, flags);
|
||||
return 0;
|
||||
}
|
||||
@@ -913,7 +913,7 @@ static void _extract_crng(struct crng_state *crng,
|
||||
{
|
||||
unsigned long v, flags;
|
||||
|
||||
- if (crng_ready() &&
|
||||
+ if (crng_init > 1 &&
|
||||
(time_after(crng_global_init_time, crng->init_time) ||
|
||||
time_after(jiffies, crng->init_time + CRNG_RESEED_INTERVAL)))
|
||||
crng_reseed(crng, crng == &primary_crng ? &input_pool : NULL);
|
||||
@@ -1200,7 +1200,7 @@ void add_interrupt_randomness(int irq, int irq_flags)
|
||||
fast_mix(fast_pool);
|
||||
add_interrupt_bench(cycles);
|
||||
|
||||
- if (unlikely(crng_init == 0)) {
|
||||
+ if (!crng_ready()) {
|
||||
if ((fast_pool->count >= 64) &&
|
||||
crng_fast_load((char *) fast_pool->pool,
|
||||
sizeof(fast_pool->pool))) {
|
||||
@@ -2269,7 +2269,7 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
|
||||
{
|
||||
struct entropy_store *poolp = &input_pool;
|
||||
|
||||
- if (unlikely(crng_init == 0)) {
|
||||
+ if (!crng_ready()) {
|
||||
crng_fast_load(buffer, count);
|
||||
return;
|
||||
}
|
||||
--
|
||||
2.17.0
|
||||
|
@ -1,7 +1,19 @@
|
||||
From bb86b4b0bbae12341df16fedf51aeda480364fbf Mon Sep 17 00:00:00 2001
|
||||
From: Peter Robinson <pbrobinson@gmail.com>
|
||||
Date: Thu, 19 Apr 2018 19:35:58 +0100
|
||||
Subject: [PATCH] ARM: dts: Add am335x-pocketbeagle
|
||||
From patchwork Tue Apr 17 17:14:04 2018
|
||||
Content-Type: text/plain; charset="utf-8"
|
||||
MIME-Version: 1.0
|
||||
Content-Transfer-Encoding: 7bit
|
||||
Subject: [v3] ARM: dts: Add am335x-pocketbeagle
|
||||
From: Robert Nelson <robertcnelson@gmail.com>
|
||||
X-Patchwork-Id: 10346089
|
||||
Message-Id: <20180417171404.13624-1-robertcnelson@gmail.com>
|
||||
To: tony@atomide.com,
|
||||
devicetree@vger.kernel.org
|
||||
Cc: Drew Fustini <drew@beagleboard.org>,
|
||||
Peter Robinson <pbrobinson@redhat.com>,
|
||||
Jason Kridner <jkridner@beagleboard.org>, linux-omap@vger.kernel.org,
|
||||
Robert Nelson <robertcnelson@gmail.com>,
|
||||
linux-arm-kernel@lists.infradead.org
|
||||
Date: Tue, 17 Apr 2018 12:14:04 -0500
|
||||
|
||||
PocketBeagle is an ultra-tiny-yet-complete open-source USB-key-fob computer.
|
||||
|
||||
@ -12,7 +24,6 @@ http://beagleboard.org/pocket
|
||||
https://github.com/beagleboard/pocketbeagle
|
||||
|
||||
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
|
||||
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
|
||||
CC: Tony Lindgren <tony@atomide.com>
|
||||
CC: Jason Kridner <jkridner@beagleboard.org>
|
||||
CC: Drew Fustini <drew@beagleboard.org>
|
||||
@ -35,11 +46,11 @@ Changes in v2:
|
||||
create mode 100644 arch/arm/boot/dts/am335x-pocketbeagle.dts
|
||||
|
||||
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
|
||||
index ade7a38543dc..a632bbef01f5 100644
|
||||
index 7e2424957809..5a09ff15743b 100644
|
||||
--- a/arch/arm/boot/dts/Makefile
|
||||
+++ b/arch/arm/boot/dts/Makefile
|
||||
@@ -675,6 +675,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
|
||||
am335x-nano.dtb \
|
||||
@@ -688,6 +688,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
|
||||
am335x-pdu001.dtb \
|
||||
am335x-pepper.dtb \
|
||||
am335x-phycore-rdk.dtb \
|
||||
+ am335x-pocketbeagle.dtb \
|
||||
@ -48,7 +59,7 @@ index ade7a38543dc..a632bbef01f5 100644
|
||||
am335x-sl50.dtb \
|
||||
diff --git a/arch/arm/boot/dts/am335x-osd335x-common.dtsi b/arch/arm/boot/dts/am335x-osd335x-common.dtsi
|
||||
new file mode 100644
|
||||
index 000000000000..f8ff473f94f0
|
||||
index 000000000000..d2150d207b7a
|
||||
--- /dev/null
|
||||
+++ b/arch/arm/boot/dts/am335x-osd335x-common.dtsi
|
||||
@@ -0,0 +1,124 @@
|
||||
@ -419,6 +430,3 @@ index 000000000000..62fe5cab9fae
|
||||
+&cppi41dma {
|
||||
+ status = "okay";
|
||||
+};
|
||||
--
|
||||
2.17.0
|
||||
|
||||
|
@ -1,131 +0,0 @@
|
||||
From 0ab09d651b5858f9bc7d5f74e725334a661828e0 Mon Sep 17 00:00:00 2001
|
||||
From: Icenowy Zheng <icenowy@aosc.io>
|
||||
Date: Fri, 9 Mar 2018 14:47:17 +0000
|
||||
Subject: nvmem: sunxi-sid: fix H3 SID controller support
|
||||
|
||||
It seems that doing some operation will make the value pre-read on H3
|
||||
SID controller wrong again, so all operation should be performed by
|
||||
register.
|
||||
|
||||
Change the SID reading to use register only.
|
||||
|
||||
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
|
||||
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
||||
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||||
---
|
||||
drivers/nvmem/sunxi_sid.c | 71 +++++++++++++++++++++++++++++++++--------------
|
||||
1 file changed, 50 insertions(+), 21 deletions(-)
|
||||
|
||||
diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
|
||||
index 99bd54d..26bb637 100644
|
||||
--- a/drivers/nvmem/sunxi_sid.c
|
||||
+++ b/drivers/nvmem/sunxi_sid.c
|
||||
@@ -85,13 +85,14 @@ static int sunxi_sid_read(void *context, unsigned int offset,
|
||||
}
|
||||
|
||||
static int sun8i_sid_register_readout(const struct sunxi_sid *sid,
|
||||
- const unsigned int word)
|
||||
+ const unsigned int offset,
|
||||
+ u32 *out)
|
||||
{
|
||||
u32 reg_val;
|
||||
int ret;
|
||||
|
||||
/* Set word, lock access, and set read command */
|
||||
- reg_val = (word & SUN8I_SID_OFFSET_MASK)
|
||||
+ reg_val = (offset & SUN8I_SID_OFFSET_MASK)
|
||||
<< SUN8I_SID_OFFSET_SHIFT;
|
||||
reg_val |= SUN8I_SID_OP_LOCK | SUN8I_SID_READ;
|
||||
writel(reg_val, sid->base + SUN8I_SID_PRCTL);
|
||||
@@ -101,7 +102,49 @@ static int sun8i_sid_register_readout(const struct sunxi_sid *sid,
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
+ if (out)
|
||||
+ *out = readl(sid->base + SUN8I_SID_RDKEY);
|
||||
+
|
||||
writel(0, sid->base + SUN8I_SID_PRCTL);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+/*
|
||||
+ * On Allwinner H3, the value on the 0x200 offset of the SID controller seems
|
||||
+ * to be not reliable at all.
|
||||
+ * Read by the registers instead.
|
||||
+ */
|
||||
+static int sun8i_sid_read_byte_by_reg(const struct sunxi_sid *sid,
|
||||
+ const unsigned int offset,
|
||||
+ u8 *out)
|
||||
+{
|
||||
+ u32 word;
|
||||
+ int ret;
|
||||
+
|
||||
+ ret = sun8i_sid_register_readout(sid, offset & ~0x03, &word);
|
||||
+
|
||||
+ if (ret)
|
||||
+ return ret;
|
||||
+
|
||||
+ *out = (word >> ((offset & 0x3) * 8)) & 0xff;
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int sun8i_sid_read_by_reg(void *context, unsigned int offset,
|
||||
+ void *val, size_t bytes)
|
||||
+{
|
||||
+ struct sunxi_sid *sid = context;
|
||||
+ u8 *buf = val;
|
||||
+ int ret;
|
||||
+
|
||||
+ while (bytes--) {
|
||||
+ ret = sun8i_sid_read_byte_by_reg(sid, offset++, buf++);
|
||||
+ if (ret)
|
||||
+ return ret;
|
||||
+ }
|
||||
+
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -131,26 +174,12 @@ static int sunxi_sid_probe(struct platform_device *pdev)
|
||||
|
||||
size = cfg->size;
|
||||
|
||||
- if (cfg->need_register_readout) {
|
||||
- /*
|
||||
- * H3's SID controller have a bug that the value at 0x200
|
||||
- * offset is not the correct value when the hardware is reseted.
|
||||
- * However, after doing a register-based read operation, the
|
||||
- * value become right.
|
||||
- * Do a full read operation here, but ignore its value
|
||||
- * (as it's more fast to read by direct MMIO value than
|
||||
- * with registers)
|
||||
- */
|
||||
- for (i = 0; i < (size >> 2); i++) {
|
||||
- ret = sun8i_sid_register_readout(sid, i);
|
||||
- if (ret)
|
||||
- return ret;
|
||||
- }
|
||||
- }
|
||||
-
|
||||
econfig.size = size;
|
||||
econfig.dev = dev;
|
||||
- econfig.reg_read = sunxi_sid_read;
|
||||
+ if (cfg->need_register_readout)
|
||||
+ econfig.reg_read = sun8i_sid_read_by_reg;
|
||||
+ else
|
||||
+ econfig.reg_read = sunxi_sid_read;
|
||||
econfig.priv = sid;
|
||||
nvmem = nvmem_register(&econfig);
|
||||
if (IS_ERR(nvmem))
|
||||
@@ -163,7 +192,7 @@ static int sunxi_sid_probe(struct platform_device *pdev)
|
||||
}
|
||||
|
||||
for (i = 0; i < size; i++)
|
||||
- randomness[i] = sunxi_sid_read_byte(sid, i);
|
||||
+ econfig.reg_read(sid, i, &randomness[i], 1);
|
||||
|
||||
add_device_randomness(randomness, size);
|
||||
kfree(randomness);
|
||||
--
|
||||
cgit v1.1
|
@ -1,857 +0,0 @@
|
||||
From patchwork Wed Mar 28 09:50:48 2018
|
||||
Content-Type: text/plain; charset="utf-8"
|
||||
MIME-Version: 1.0
|
||||
Content-Transfer-Encoding: 7bit
|
||||
Subject: [v2,1/2] arm64: fpsimd: Split cpu field out from struct fpsimd_state
|
||||
From: Dave P Martin <Dave.Martin@arm.com>
|
||||
X-Patchwork-Id: 10312693
|
||||
Message-Id: <1522230649-22008-2-git-send-email-Dave.Martin@arm.com>
|
||||
To: linux-arm-kernel@lists.infradead.org
|
||||
Cc: Mark Rutland <mark.rutland@arm.com>, Will Deacon <will.deacon@arm.com>,
|
||||
Kees Cook <keescook@chromium.org>
|
||||
Date: Wed, 28 Mar 2018 10:50:48 +0100
|
||||
|
||||
In preparation for using a common representation of the FPSIMD
|
||||
state for tasks and KVM vcpus, this patch separates out the "cpu"
|
||||
field that is used to track the cpu on which the state was most
|
||||
recently loaded.
|
||||
|
||||
This will allow common code to operate on task and vcpu contexts
|
||||
without requiring the cpu field to be stored at the same offset
|
||||
from the FPSIMD register data in both cases. This should avoid the
|
||||
need for messing with the definition of those parts of struct
|
||||
vcpu_arch that are exposed in the KVM user ABI.
|
||||
|
||||
The resulting change is also convenient for grouping and defining
|
||||
the set of thread_struct fields that are supposed to be accessible
|
||||
to copy_{to,from}_user(), which includes user_fpsimd_state but
|
||||
should exclude the cpu field. This patch does not amend the
|
||||
usercopy whitelist to match: that will be addressed in a subsequent
|
||||
patch.
|
||||
|
||||
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
|
||||
---
|
||||
arch/arm64/include/asm/fpsimd.h | 29 ++------------------------
|
||||
arch/arm64/include/asm/processor.h | 4 ++--
|
||||
arch/arm64/kernel/fpsimd.c | 42 +++++++++++++++++++++-----------------
|
||||
arch/arm64/kernel/ptrace.c | 10 ++++-----
|
||||
arch/arm64/kernel/signal.c | 3 +--
|
||||
arch/arm64/kernel/signal32.c | 3 +--
|
||||
6 files changed, 34 insertions(+), 57 deletions(-)
|
||||
|
||||
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
|
||||
index 8857a0f..1bfc920 100644
|
||||
--- a/arch/arm64/include/asm/fpsimd.h
|
||||
+++ b/arch/arm64/include/asm/fpsimd.h
|
||||
@@ -24,31 +24,6 @@
|
||||
#include <linux/cache.h>
|
||||
#include <linux/stddef.h>
|
||||
|
||||
-/*
|
||||
- * FP/SIMD storage area has:
|
||||
- * - FPSR and FPCR
|
||||
- * - 32 128-bit data registers
|
||||
- *
|
||||
- * Note that user_fpsimd forms a prefix of this structure, which is
|
||||
- * relied upon in the ptrace FP/SIMD accessors.
|
||||
- */
|
||||
-struct fpsimd_state {
|
||||
- union {
|
||||
- struct user_fpsimd_state user_fpsimd;
|
||||
- struct {
|
||||
- __uint128_t vregs[32];
|
||||
- u32 fpsr;
|
||||
- u32 fpcr;
|
||||
- /*
|
||||
- * For ptrace compatibility, pad to next 128-bit
|
||||
- * boundary here if extending this struct.
|
||||
- */
|
||||
- };
|
||||
- };
|
||||
- /* the id of the last cpu to have restored this state */
|
||||
- unsigned int cpu;
|
||||
-};
|
||||
-
|
||||
#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
|
||||
/* Masks for extracting the FPSR and FPCR from the FPSCR */
|
||||
#define VFP_FPSCR_STAT_MASK 0xf800009f
|
||||
@@ -62,8 +37,8 @@ struct fpsimd_state {
|
||||
|
||||
struct task_struct;
|
||||
|
||||
-extern void fpsimd_save_state(struct fpsimd_state *state);
|
||||
-extern void fpsimd_load_state(struct fpsimd_state *state);
|
||||
+extern void fpsimd_save_state(struct user_fpsimd_state *state);
|
||||
+extern void fpsimd_load_state(struct user_fpsimd_state *state);
|
||||
|
||||
extern void fpsimd_thread_switch(struct task_struct *next);
|
||||
extern void fpsimd_flush_thread(void);
|
||||
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
|
||||
index fce604e..4a04535 100644
|
||||
--- a/arch/arm64/include/asm/processor.h
|
||||
+++ b/arch/arm64/include/asm/processor.h
|
||||
@@ -37,7 +37,6 @@
|
||||
#include <linux/string.h>
|
||||
|
||||
#include <asm/alternative.h>
|
||||
-#include <asm/fpsimd.h>
|
||||
#include <asm/hw_breakpoint.h>
|
||||
#include <asm/lse.h>
|
||||
#include <asm/pgtable-hwdef.h>
|
||||
@@ -107,7 +106,8 @@ struct thread_struct {
|
||||
#ifdef CONFIG_COMPAT
|
||||
unsigned long tp2_value;
|
||||
#endif
|
||||
- struct fpsimd_state fpsimd_state;
|
||||
+ struct user_fpsimd_state fpsimd_state;
|
||||
+ unsigned int fpsimd_cpu;
|
||||
void *sve_state; /* SVE registers, if any */
|
||||
unsigned int sve_vl; /* SVE vector length */
|
||||
unsigned int sve_vl_onexec; /* SVE vl after next exec */
|
||||
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
|
||||
index e7226c4..c4be311 100644
|
||||
--- a/arch/arm64/kernel/fpsimd.c
|
||||
+++ b/arch/arm64/kernel/fpsimd.c
|
||||
@@ -64,7 +64,7 @@
|
||||
* been loaded into its FPSIMD registers most recently, or whether it has
|
||||
* been used to perform kernel mode NEON in the meantime.
|
||||
*
|
||||
- * For (a), we add a 'cpu' field to struct fpsimd_state, which gets updated to
|
||||
+ * For (a), we add a fpsimd_cpu field to thread_struct, which gets updated to
|
||||
* the id of the current CPU every time the state is loaded onto a CPU. For (b),
|
||||
* we add the per-cpu variable 'fpsimd_last_state' (below), which contains the
|
||||
* address of the userland FPSIMD state of the task that was loaded onto the CPU
|
||||
@@ -73,7 +73,7 @@
|
||||
* With this in place, we no longer have to restore the next FPSIMD state right
|
||||
* when switching between tasks. Instead, we can defer this check to userland
|
||||
* resume, at which time we verify whether the CPU's fpsimd_last_state and the
|
||||
- * task's fpsimd_state.cpu are still mutually in sync. If this is the case, we
|
||||
+ * task's fpsimd_cpu are still mutually in sync. If this is the case, we
|
||||
* can omit the FPSIMD restore.
|
||||
*
|
||||
* As an optimization, we use the thread_info flag TIF_FOREIGN_FPSTATE to
|
||||
@@ -90,14 +90,14 @@
|
||||
* flag with local_bh_disable() unless softirqs are already masked.
|
||||
*
|
||||
* For a certain task, the sequence may look something like this:
|
||||
- * - the task gets scheduled in; if both the task's fpsimd_state.cpu field
|
||||
+ * - the task gets scheduled in; if both the task's fpsimd_cpu field
|
||||
* contains the id of the current CPU, and the CPU's fpsimd_last_state per-cpu
|
||||
* variable points to the task's fpsimd_state, the TIF_FOREIGN_FPSTATE flag is
|
||||
* cleared, otherwise it is set;
|
||||
*
|
||||
* - the task returns to userland; if TIF_FOREIGN_FPSTATE is set, the task's
|
||||
* userland FPSIMD state is copied from memory to the registers, the task's
|
||||
- * fpsimd_state.cpu field is set to the id of the current CPU, the current
|
||||
+ * fpsimd_cpu field is set to the id of the current CPU, the current
|
||||
* CPU's fpsimd_last_state pointer is set to this task's fpsimd_state and the
|
||||
* TIF_FOREIGN_FPSTATE flag is cleared;
|
||||
*
|
||||
@@ -115,7 +115,7 @@
|
||||
* whatever is in the FPSIMD registers is not saved to memory, but discarded.
|
||||
*/
|
||||
struct fpsimd_last_state_struct {
|
||||
- struct fpsimd_state *st;
|
||||
+ struct user_fpsimd_state *st;
|
||||
bool sve_in_use;
|
||||
};
|
||||
|
||||
@@ -417,7 +417,7 @@ static void fpsimd_to_sve(struct task_struct *task)
|
||||
{
|
||||
unsigned int vq;
|
||||
void *sst = task->thread.sve_state;
|
||||
- struct fpsimd_state const *fst = &task->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state const *fst = &task->thread.fpsimd_state;
|
||||
unsigned int i;
|
||||
|
||||
if (!system_supports_sve())
|
||||
@@ -443,7 +443,7 @@ static void sve_to_fpsimd(struct task_struct *task)
|
||||
{
|
||||
unsigned int vq;
|
||||
void const *sst = task->thread.sve_state;
|
||||
- struct fpsimd_state *fst = &task->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state *fst = &task->thread.fpsimd_state;
|
||||
unsigned int i;
|
||||
|
||||
if (!system_supports_sve())
|
||||
@@ -539,7 +539,7 @@ void sve_sync_from_fpsimd_zeropad(struct task_struct *task)
|
||||
{
|
||||
unsigned int vq;
|
||||
void *sst = task->thread.sve_state;
|
||||
- struct fpsimd_state const *fst = &task->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state const *fst = &task->thread.fpsimd_state;
|
||||
unsigned int i;
|
||||
|
||||
if (!test_tsk_thread_flag(task, TIF_SVE))
|
||||
@@ -908,10 +908,9 @@ void fpsimd_thread_switch(struct task_struct *next)
|
||||
* the TIF_FOREIGN_FPSTATE flag so the state will be loaded
|
||||
* upon the next return to userland.
|
||||
*/
|
||||
- struct fpsimd_state *st = &next->thread.fpsimd_state;
|
||||
-
|
||||
- if (__this_cpu_read(fpsimd_last_state.st) == st
|
||||
- && st->cpu == smp_processor_id())
|
||||
+ if (__this_cpu_read(fpsimd_last_state.st) ==
|
||||
+ &next->thread.fpsimd_state
|
||||
+ && next->thread.fpsimd_cpu == smp_processor_id())
|
||||
clear_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE);
|
||||
else
|
||||
set_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE);
|
||||
@@ -927,7 +926,8 @@ void fpsimd_flush_thread(void)
|
||||
|
||||
local_bh_disable();
|
||||
|
||||
- memset(¤t->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
|
||||
+ memset(¤t->thread.fpsimd_state, 0,
|
||||
+ sizeof current->thread.fpsimd_state);
|
||||
fpsimd_flush_task_state(current);
|
||||
|
||||
if (system_supports_sve()) {
|
||||
@@ -1004,11 +1004,10 @@ static void fpsimd_bind_to_cpu(void)
|
||||
{
|
||||
struct fpsimd_last_state_struct *last =
|
||||
this_cpu_ptr(&fpsimd_last_state);
|
||||
- struct fpsimd_state *st = ¤t->thread.fpsimd_state;
|
||||
|
||||
- last->st = st;
|
||||
+ last->st = ¤t->thread.fpsimd_state;
|
||||
last->sve_in_use = test_thread_flag(TIF_SVE);
|
||||
- st->cpu = smp_processor_id();
|
||||
+ current->thread.fpsimd_cpu = smp_processor_id();
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -1043,7 +1042,7 @@ void fpsimd_update_current_state(struct user_fpsimd_state const *state)
|
||||
|
||||
local_bh_disable();
|
||||
|
||||
- current->thread.fpsimd_state.user_fpsimd = *state;
|
||||
+ current->thread.fpsimd_state = *state;
|
||||
if (system_supports_sve() && test_thread_flag(TIF_SVE))
|
||||
fpsimd_to_sve(current);
|
||||
|
||||
@@ -1055,12 +1054,17 @@ void fpsimd_update_current_state(struct user_fpsimd_state const *state)
|
||||
local_bh_enable();
|
||||
}
|
||||
|
||||
+void fpsimd_flush_state(unsigned int *cpu)
|
||||
+{
|
||||
+ *cpu = NR_CPUS;
|
||||
+}
|
||||
+
|
||||
/*
|
||||
* Invalidate live CPU copies of task t's FPSIMD state
|
||||
*/
|
||||
void fpsimd_flush_task_state(struct task_struct *t)
|
||||
{
|
||||
- t->thread.fpsimd_state.cpu = NR_CPUS;
|
||||
+ fpsimd_flush_state(&t->thread.fpsimd_cpu);
|
||||
}
|
||||
|
||||
static inline void fpsimd_flush_cpu_state(void)
|
||||
@@ -1159,7 +1163,7 @@ EXPORT_SYMBOL(kernel_neon_end);
|
||||
|
||||
#ifdef CONFIG_EFI
|
||||
|
||||
-static DEFINE_PER_CPU(struct fpsimd_state, efi_fpsimd_state);
|
||||
+static DEFINE_PER_CPU(struct user_fpsimd_state, efi_fpsimd_state);
|
||||
static DEFINE_PER_CPU(bool, efi_fpsimd_state_used);
|
||||
static DEFINE_PER_CPU(bool, efi_sve_state_used);
|
||||
|
||||
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
|
||||
index 9ae31f7..fdeaba0de 100644
|
||||
--- a/arch/arm64/kernel/ptrace.c
|
||||
+++ b/arch/arm64/kernel/ptrace.c
|
||||
@@ -629,7 +629,7 @@ static int __fpr_get(struct task_struct *target,
|
||||
|
||||
sve_sync_to_fpsimd(target);
|
||||
|
||||
- uregs = &target->thread.fpsimd_state.user_fpsimd;
|
||||
+ uregs = &target->thread.fpsimd_state;
|
||||
|
||||
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs,
|
||||
start_pos, start_pos + sizeof(*uregs));
|
||||
@@ -660,14 +660,14 @@ static int __fpr_set(struct task_struct *target,
|
||||
*/
|
||||
sve_sync_to_fpsimd(target);
|
||||
|
||||
- newstate = target->thread.fpsimd_state.user_fpsimd;
|
||||
+ newstate = target->thread.fpsimd_state;
|
||||
|
||||
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &newstate,
|
||||
start_pos, start_pos + sizeof(newstate));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
- target->thread.fpsimd_state.user_fpsimd = newstate;
|
||||
+ target->thread.fpsimd_state = newstate;
|
||||
|
||||
return ret;
|
||||
}
|
||||
@@ -1169,7 +1169,7 @@ static int compat_vfp_get(struct task_struct *target,
|
||||
compat_ulong_t fpscr;
|
||||
int ret, vregs_end_pos;
|
||||
|
||||
- uregs = &target->thread.fpsimd_state.user_fpsimd;
|
||||
+ uregs = &target->thread.fpsimd_state;
|
||||
|
||||
if (target == current)
|
||||
fpsimd_preserve_current_state();
|
||||
@@ -1202,7 +1202,7 @@ static int compat_vfp_set(struct task_struct *target,
|
||||
compat_ulong_t fpscr;
|
||||
int ret, vregs_end_pos;
|
||||
|
||||
- uregs = &target->thread.fpsimd_state.user_fpsimd;
|
||||
+ uregs = &target->thread.fpsimd_state;
|
||||
|
||||
vregs_end_pos = VFP_STATE_SIZE - sizeof(compat_ulong_t);
|
||||
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, uregs, 0,
|
||||
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
|
||||
index f60c052..d026615 100644
|
||||
--- a/arch/arm64/kernel/signal.c
|
||||
+++ b/arch/arm64/kernel/signal.c
|
||||
@@ -178,8 +178,7 @@ static void __user *apply_user_offset(
|
||||
|
||||
static int preserve_fpsimd_context(struct fpsimd_context __user *ctx)
|
||||
{
|
||||
- struct user_fpsimd_state const *fpsimd =
|
||||
- ¤t->thread.fpsimd_state.user_fpsimd;
|
||||
+ struct user_fpsimd_state const *fpsimd = ¤t->thread.fpsimd_state;
|
||||
int err;
|
||||
|
||||
/* copy the FP and status/control registers */
|
||||
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
|
||||
index 79feb86..4ea38d3 100644
|
||||
--- a/arch/arm64/kernel/signal32.c
|
||||
+++ b/arch/arm64/kernel/signal32.c
|
||||
@@ -148,8 +148,7 @@ union __fpsimd_vreg {
|
||||
|
||||
static int compat_preserve_vfp_context(struct compat_vfp_sigframe __user *frame)
|
||||
{
|
||||
- struct user_fpsimd_state const *fpsimd =
|
||||
- ¤t->thread.fpsimd_state.user_fpsimd;
|
||||
+ struct user_fpsimd_state const *fpsimd = ¤t->thread.fpsimd_state;
|
||||
compat_ulong_t magic = VFP_MAGIC;
|
||||
compat_ulong_t size = VFP_STORAGE_SIZE;
|
||||
compat_ulong_t fpscr, fpexc;
|
||||
From patchwork Wed Mar 28 09:50:49 2018
|
||||
Content-Type: text/plain; charset="utf-8"
|
||||
MIME-Version: 1.0
|
||||
Content-Transfer-Encoding: 7bit
|
||||
Subject: [v2,2/2] arm64: uaccess: Fix omissions from usercopy whitelist
|
||||
From: Dave P Martin <Dave.Martin@arm.com>
|
||||
X-Patchwork-Id: 10312691
|
||||
Message-Id: <1522230649-22008-3-git-send-email-Dave.Martin@arm.com>
|
||||
To: linux-arm-kernel@lists.infradead.org
|
||||
Cc: Mark Rutland <mark.rutland@arm.com>, Will Deacon <will.deacon@arm.com>,
|
||||
Kees Cook <keescook@chromium.org>
|
||||
Date: Wed, 28 Mar 2018 10:50:49 +0100
|
||||
|
||||
When the hardend usercopy support was added for arm64, it was
|
||||
concluded that all cases of usercopy into and out of thread_struct
|
||||
were statically sized and so didn't require explicit whitelisting
|
||||
of the appropriate fields in thread_struct.
|
||||
|
||||
Testing with usercopy hardening enabled has revealed that this is
|
||||
not the case for certain ptrace regset manipulation calls on arm64.
|
||||
This occurs because the sizes of usercopies associated with the
|
||||
regset API are dynamic by construction, and because arm64 does not
|
||||
always stage such copies via the stack: indeed the regset API is
|
||||
designed to avoid the need for that by adding some bounds checking.
|
||||
|
||||
This is currently believed to affect only the fpsimd and TLS
|
||||
registers.
|
||||
|
||||
Because the whitelisted fields in thread_struct must be contiguous,
|
||||
this patch groups them together in a nested struct. It is also
|
||||
necessary to be able to determine the location and size of that
|
||||
struct, so rather than making the struct anonymous (which would
|
||||
save on edits elsewhere) or adding an anonymous union containing
|
||||
named and unnamed instances of the same struct (gross), this patch
|
||||
gives the struct a name and makes the necessary edits to code that
|
||||
references it (noisy but simple).
|
||||
|
||||
Care is needed to ensure that the new struct does not contain
|
||||
padding (which the usercopy hardening would fail to protect).
|
||||
|
||||
For this reason, the presence of tp2_value is made unconditional,
|
||||
since a padding field would be needed there in any case. This pads
|
||||
up to the 16-byte alignment required by struct user_fpsimd_state.
|
||||
|
||||
Reported-by: Mark Rutland <mark.rutland@arm.com>
|
||||
Fixes: 9e8084d3f761 ("arm64: Implement thread_struct whitelist for hardened usercopy")
|
||||
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
|
||||
Acked-by: Kees Cook <keescook@chromium.org>
|
||||
---
|
||||
|
||||
Changes since v1:
|
||||
|
||||
* Add a BUILD_BUG_ON() check for padding in the whitelist struct.
|
||||
* Move to using sizeof_field() for assigning *size; get rid of the
|
||||
dummy pointer that was used previously.
|
||||
* Delete bogus comment about why no whitelist is (was) needed.
|
||||
---
|
||||
arch/arm64/include/asm/processor.h | 38 +++++++++++++++++++-----------
|
||||
arch/arm64/kernel/fpsimd.c | 47 +++++++++++++++++++-------------------
|
||||
arch/arm64/kernel/process.c | 6 ++---
|
||||
arch/arm64/kernel/ptrace.c | 30 ++++++++++++------------
|
||||
arch/arm64/kernel/signal.c | 3 ++-
|
||||
arch/arm64/kernel/signal32.c | 3 ++-
|
||||
arch/arm64/kernel/sys_compat.c | 2 +-
|
||||
7 files changed, 72 insertions(+), 57 deletions(-)
|
||||
|
||||
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
|
||||
index 4a04535..224af48 100644
|
||||
--- a/arch/arm64/include/asm/processor.h
|
||||
+++ b/arch/arm64/include/asm/processor.h
|
||||
@@ -34,6 +34,8 @@
|
||||
|
||||
#ifdef __KERNEL__
|
||||
|
||||
+#include <linux/build_bug.h>
|
||||
+#include <linux/stddef.h>
|
||||
#include <linux/string.h>
|
||||
|
||||
#include <asm/alternative.h>
|
||||
@@ -102,11 +104,18 @@ struct cpu_context {
|
||||
|
||||
struct thread_struct {
|
||||
struct cpu_context cpu_context; /* cpu context */
|
||||
- unsigned long tp_value; /* TLS register */
|
||||
-#ifdef CONFIG_COMPAT
|
||||
- unsigned long tp2_value;
|
||||
-#endif
|
||||
- struct user_fpsimd_state fpsimd_state;
|
||||
+
|
||||
+ /*
|
||||
+ * Whitelisted fields for hardened usercopy:
|
||||
+ * Maintainers must ensure manually that this contains no
|
||||
+ * implicit padding.
|
||||
+ */
|
||||
+ struct {
|
||||
+ unsigned long tp_value; /* TLS register */
|
||||
+ unsigned long tp2_value;
|
||||
+ struct user_fpsimd_state fpsimd_state;
|
||||
+ } uw;
|
||||
+
|
||||
unsigned int fpsimd_cpu;
|
||||
void *sve_state; /* SVE registers, if any */
|
||||
unsigned int sve_vl; /* SVE vector length */
|
||||
@@ -116,14 +125,17 @@ struct thread_struct {
|
||||
struct debug_info debug; /* debugging */
|
||||
};
|
||||
|
||||
-/*
|
||||
- * Everything usercopied to/from thread_struct is statically-sized, so
|
||||
- * no hardened usercopy whitelist is needed.
|
||||
- */
|
||||
static inline void arch_thread_struct_whitelist(unsigned long *offset,
|
||||
unsigned long *size)
|
||||
{
|
||||
- *offset = *size = 0;
|
||||
+ /* Verify that there is no padding among the whitelisted fields: */
|
||||
+ BUILD_BUG_ON(sizeof_field(struct thread_struct, uw) !=
|
||||
+ sizeof_field(struct thread_struct, uw.tp_value) +
|
||||
+ sizeof_field(struct thread_struct, uw.tp2_value) +
|
||||
+ sizeof_field(struct thread_struct, uw.fpsimd_state));
|
||||
+
|
||||
+ *offset = offsetof(struct thread_struct, uw);
|
||||
+ *size = sizeof_field(struct thread_struct, uw);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_COMPAT
|
||||
@@ -131,13 +143,13 @@ static inline void arch_thread_struct_whitelist(unsigned long *offset,
|
||||
({ \
|
||||
unsigned long *__tls; \
|
||||
if (is_compat_thread(task_thread_info(t))) \
|
||||
- __tls = &(t)->thread.tp2_value; \
|
||||
+ __tls = &(t)->thread.uw.tp2_value; \
|
||||
else \
|
||||
- __tls = &(t)->thread.tp_value; \
|
||||
+ __tls = &(t)->thread.uw.tp_value; \
|
||||
__tls; \
|
||||
})
|
||||
#else
|
||||
-#define task_user_tls(t) (&(t)->thread.tp_value)
|
||||
+#define task_user_tls(t) (&(t)->thread.uw.tp_value)
|
||||
#endif
|
||||
|
||||
/* Sync TPIDR_EL0 back to thread_struct for current */
|
||||
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
|
||||
index c4be311..7a8ac960b6 100644
|
||||
--- a/arch/arm64/kernel/fpsimd.c
|
||||
+++ b/arch/arm64/kernel/fpsimd.c
|
||||
@@ -222,7 +222,7 @@ static void sve_user_enable(void)
|
||||
* sets TIF_SVE.
|
||||
*
|
||||
* When stored, FPSIMD registers V0-V31 are encoded in
|
||||
- * task->fpsimd_state; bits [max : 128] for each of Z0-Z31 are
|
||||
+ * task->thread.uw.fpsimd_state; bits [max : 128] for each of Z0-Z31 are
|
||||
* logically zero but not stored anywhere; P0-P15 and FFR are not
|
||||
* stored and have unspecified values from userspace's point of
|
||||
* view. For hygiene purposes, the kernel zeroes them on next use,
|
||||
@@ -231,9 +231,9 @@ static void sve_user_enable(void)
|
||||
* task->thread.sve_state does not need to be non-NULL, valid or any
|
||||
* particular size: it must not be dereferenced.
|
||||
*
|
||||
- * * FPSR and FPCR are always stored in task->fpsimd_state irrespctive of
|
||||
- * whether TIF_SVE is clear or set, since these are not vector length
|
||||
- * dependent.
|
||||
+ * * FPSR and FPCR are always stored in task->thread.uw.fpsimd_state
|
||||
+ * irrespective of whether TIF_SVE is clear or set, since these are
|
||||
+ * not vector length dependent.
|
||||
*/
|
||||
|
||||
/*
|
||||
@@ -251,10 +251,10 @@ static void task_fpsimd_load(void)
|
||||
|
||||
if (system_supports_sve() && test_thread_flag(TIF_SVE))
|
||||
sve_load_state(sve_pffr(current),
|
||||
- ¤t->thread.fpsimd_state.fpsr,
|
||||
+ ¤t->thread.uw.fpsimd_state.fpsr,
|
||||
sve_vq_from_vl(current->thread.sve_vl) - 1);
|
||||
else
|
||||
- fpsimd_load_state(¤t->thread.fpsimd_state);
|
||||
+ fpsimd_load_state(¤t->thread.uw.fpsimd_state);
|
||||
|
||||
if (system_supports_sve()) {
|
||||
/* Toggle SVE trapping for userspace if needed */
|
||||
@@ -291,9 +291,9 @@ static void task_fpsimd_save(void)
|
||||
}
|
||||
|
||||
sve_save_state(sve_pffr(current),
|
||||
- ¤t->thread.fpsimd_state.fpsr);
|
||||
+ ¤t->thread.uw.fpsimd_state.fpsr);
|
||||
} else
|
||||
- fpsimd_save_state(¤t->thread.fpsimd_state);
|
||||
+ fpsimd_save_state(¤t->thread.uw.fpsimd_state);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -404,20 +404,21 @@ static int __init sve_sysctl_init(void) { return 0; }
|
||||
(SVE_SIG_ZREG_OFFSET(vq, n) - SVE_SIG_REGS_OFFSET))
|
||||
|
||||
/*
|
||||
- * Transfer the FPSIMD state in task->thread.fpsimd_state to
|
||||
+ * Transfer the FPSIMD state in task->thread.uw.fpsimd_state to
|
||||
* task->thread.sve_state.
|
||||
*
|
||||
* Task can be a non-runnable task, or current. In the latter case,
|
||||
* softirqs (and preemption) must be disabled.
|
||||
* task->thread.sve_state must point to at least sve_state_size(task)
|
||||
* bytes of allocated kernel memory.
|
||||
- * task->thread.fpsimd_state must be up to date before calling this function.
|
||||
+ * task->thread.uw.fpsimd_state must be up to date before calling this
|
||||
+ * function.
|
||||
*/
|
||||
static void fpsimd_to_sve(struct task_struct *task)
|
||||
{
|
||||
unsigned int vq;
|
||||
void *sst = task->thread.sve_state;
|
||||
- struct user_fpsimd_state const *fst = &task->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state const *fst = &task->thread.uw.fpsimd_state;
|
||||
unsigned int i;
|
||||
|
||||
if (!system_supports_sve())
|
||||
@@ -431,7 +432,7 @@ static void fpsimd_to_sve(struct task_struct *task)
|
||||
|
||||
/*
|
||||
* Transfer the SVE state in task->thread.sve_state to
|
||||
- * task->thread.fpsimd_state.
|
||||
+ * task->thread.uw.fpsimd_state.
|
||||
*
|
||||
* Task can be a non-runnable task, or current. In the latter case,
|
||||
* softirqs (and preemption) must be disabled.
|
||||
@@ -443,7 +444,7 @@ static void sve_to_fpsimd(struct task_struct *task)
|
||||
{
|
||||
unsigned int vq;
|
||||
void const *sst = task->thread.sve_state;
|
||||
- struct user_fpsimd_state *fst = &task->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state *fst = &task->thread.uw.fpsimd_state;
|
||||
unsigned int i;
|
||||
|
||||
if (!system_supports_sve())
|
||||
@@ -510,7 +511,7 @@ void fpsimd_sync_to_sve(struct task_struct *task)
|
||||
}
|
||||
|
||||
/*
|
||||
- * Ensure that task->thread.fpsimd_state is up to date with respect to
|
||||
+ * Ensure that task->thread.uw.fpsimd_state is up to date with respect to
|
||||
* the user task, irrespective of whether SVE is in use or not.
|
||||
*
|
||||
* This should only be called by ptrace. task must be non-runnable.
|
||||
@@ -525,21 +526,21 @@ void sve_sync_to_fpsimd(struct task_struct *task)
|
||||
|
||||
/*
|
||||
* Ensure that task->thread.sve_state is up to date with respect to
|
||||
- * the task->thread.fpsimd_state.
|
||||
+ * the task->thread.uw.fpsimd_state.
|
||||
*
|
||||
* This should only be called by ptrace to merge new FPSIMD register
|
||||
* values into a task for which SVE is currently active.
|
||||
* task must be non-runnable.
|
||||
* task->thread.sve_state must point to at least sve_state_size(task)
|
||||
* bytes of allocated kernel memory.
|
||||
- * task->thread.fpsimd_state must already have been initialised with
|
||||
+ * task->thread.uw.fpsimd_state must already have been initialised with
|
||||
* the new FPSIMD register values to be merged in.
|
||||
*/
|
||||
void sve_sync_from_fpsimd_zeropad(struct task_struct *task)
|
||||
{
|
||||
unsigned int vq;
|
||||
void *sst = task->thread.sve_state;
|
||||
- struct user_fpsimd_state const *fst = &task->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state const *fst = &task->thread.uw.fpsimd_state;
|
||||
unsigned int i;
|
||||
|
||||
if (!test_tsk_thread_flag(task, TIF_SVE))
|
||||
@@ -909,7 +910,7 @@ void fpsimd_thread_switch(struct task_struct *next)
|
||||
* upon the next return to userland.
|
||||
*/
|
||||
if (__this_cpu_read(fpsimd_last_state.st) ==
|
||||
- &next->thread.fpsimd_state
|
||||
+ &next->thread.uw.fpsimd_state
|
||||
&& next->thread.fpsimd_cpu == smp_processor_id())
|
||||
clear_tsk_thread_flag(next, TIF_FOREIGN_FPSTATE);
|
||||
else
|
||||
@@ -926,8 +927,8 @@ void fpsimd_flush_thread(void)
|
||||
|
||||
local_bh_disable();
|
||||
|
||||
- memset(¤t->thread.fpsimd_state, 0,
|
||||
- sizeof current->thread.fpsimd_state);
|
||||
+ memset(¤t->thread.uw.fpsimd_state, 0,
|
||||
+ sizeof current->thread.uw.fpsimd_state);
|
||||
fpsimd_flush_task_state(current);
|
||||
|
||||
if (system_supports_sve()) {
|
||||
@@ -986,7 +987,7 @@ void fpsimd_preserve_current_state(void)
|
||||
|
||||
/*
|
||||
* Like fpsimd_preserve_current_state(), but ensure that
|
||||
- * current->thread.fpsimd_state is updated so that it can be copied to
|
||||
+ * current->thread.uw.fpsimd_state is updated so that it can be copied to
|
||||
* the signal frame.
|
||||
*/
|
||||
void fpsimd_signal_preserve_current_state(void)
|
||||
@@ -1005,7 +1006,7 @@ static void fpsimd_bind_to_cpu(void)
|
||||
struct fpsimd_last_state_struct *last =
|
||||
this_cpu_ptr(&fpsimd_last_state);
|
||||
|
||||
- last->st = ¤t->thread.fpsimd_state;
|
||||
+ last->st = ¤t->thread.uw.fpsimd_state;
|
||||
last->sve_in_use = test_thread_flag(TIF_SVE);
|
||||
current->thread.fpsimd_cpu = smp_processor_id();
|
||||
}
|
||||
@@ -1042,7 +1043,7 @@ void fpsimd_update_current_state(struct user_fpsimd_state const *state)
|
||||
|
||||
local_bh_disable();
|
||||
|
||||
- current->thread.fpsimd_state = *state;
|
||||
+ current->thread.uw.fpsimd_state = *state;
|
||||
if (system_supports_sve() && test_thread_flag(TIF_SVE))
|
||||
fpsimd_to_sve(current);
|
||||
|
||||
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
|
||||
index c0da6ef..f08a2ed 100644
|
||||
--- a/arch/arm64/kernel/process.c
|
||||
+++ b/arch/arm64/kernel/process.c
|
||||
@@ -257,7 +257,7 @@ static void tls_thread_flush(void)
|
||||
write_sysreg(0, tpidr_el0);
|
||||
|
||||
if (is_compat_task()) {
|
||||
- current->thread.tp_value = 0;
|
||||
+ current->thread.uw.tp_value = 0;
|
||||
|
||||
/*
|
||||
* We need to ensure ordering between the shadow state and the
|
||||
@@ -351,7 +351,7 @@ int copy_thread(unsigned long clone_flags, unsigned long stack_start,
|
||||
* for the new thread.
|
||||
*/
|
||||
if (clone_flags & CLONE_SETTLS)
|
||||
- p->thread.tp_value = childregs->regs[3];
|
||||
+ p->thread.uw.tp_value = childregs->regs[3];
|
||||
} else {
|
||||
memset(childregs, 0, sizeof(struct pt_regs));
|
||||
childregs->pstate = PSR_MODE_EL1h;
|
||||
@@ -379,7 +379,7 @@ static void tls_thread_switch(struct task_struct *next)
|
||||
tls_preserve_current_state();
|
||||
|
||||
if (is_compat_thread(task_thread_info(next)))
|
||||
- write_sysreg(next->thread.tp_value, tpidrro_el0);
|
||||
+ write_sysreg(next->thread.uw.tp_value, tpidrro_el0);
|
||||
else if (!arm64_kernel_unmapped_at_el0())
|
||||
write_sysreg(0, tpidrro_el0);
|
||||
|
||||
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
|
||||
index fdeaba0de..436a132 100644
|
||||
--- a/arch/arm64/kernel/ptrace.c
|
||||
+++ b/arch/arm64/kernel/ptrace.c
|
||||
@@ -629,7 +629,7 @@ static int __fpr_get(struct task_struct *target,
|
||||
|
||||
sve_sync_to_fpsimd(target);
|
||||
|
||||
- uregs = &target->thread.fpsimd_state;
|
||||
+ uregs = &target->thread.uw.fpsimd_state;
|
||||
|
||||
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs,
|
||||
start_pos, start_pos + sizeof(*uregs));
|
||||
@@ -655,19 +655,19 @@ static int __fpr_set(struct task_struct *target,
|
||||
struct user_fpsimd_state newstate;
|
||||
|
||||
/*
|
||||
- * Ensure target->thread.fpsimd_state is up to date, so that a
|
||||
+ * Ensure target->thread.uw.fpsimd_state is up to date, so that a
|
||||
* short copyin can't resurrect stale data.
|
||||
*/
|
||||
sve_sync_to_fpsimd(target);
|
||||
|
||||
- newstate = target->thread.fpsimd_state;
|
||||
+ newstate = target->thread.uw.fpsimd_state;
|
||||
|
||||
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &newstate,
|
||||
start_pos, start_pos + sizeof(newstate));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
- target->thread.fpsimd_state = newstate;
|
||||
+ target->thread.uw.fpsimd_state = newstate;
|
||||
|
||||
return ret;
|
||||
}
|
||||
@@ -692,7 +692,7 @@ static int tls_get(struct task_struct *target, const struct user_regset *regset,
|
||||
unsigned int pos, unsigned int count,
|
||||
void *kbuf, void __user *ubuf)
|
||||
{
|
||||
- unsigned long *tls = &target->thread.tp_value;
|
||||
+ unsigned long *tls = &target->thread.uw.tp_value;
|
||||
|
||||
if (target == current)
|
||||
tls_preserve_current_state();
|
||||
@@ -705,13 +705,13 @@ static int tls_set(struct task_struct *target, const struct user_regset *regset,
|
||||
const void *kbuf, const void __user *ubuf)
|
||||
{
|
||||
int ret;
|
||||
- unsigned long tls = target->thread.tp_value;
|
||||
+ unsigned long tls = target->thread.uw.tp_value;
|
||||
|
||||
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
- target->thread.tp_value = tls;
|
||||
+ target->thread.uw.tp_value = tls;
|
||||
return ret;
|
||||
}
|
||||
|
||||
@@ -842,7 +842,7 @@ static int sve_get(struct task_struct *target,
|
||||
start = end;
|
||||
end = SVE_PT_SVE_FPCR_OFFSET(vq) + SVE_PT_SVE_FPCR_SIZE;
|
||||
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
|
||||
- &target->thread.fpsimd_state.fpsr,
|
||||
+ &target->thread.uw.fpsimd_state.fpsr,
|
||||
start, end);
|
||||
if (ret)
|
||||
return ret;
|
||||
@@ -941,7 +941,7 @@ static int sve_set(struct task_struct *target,
|
||||
start = end;
|
||||
end = SVE_PT_SVE_FPCR_OFFSET(vq) + SVE_PT_SVE_FPCR_SIZE;
|
||||
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
|
||||
- &target->thread.fpsimd_state.fpsr,
|
||||
+ &target->thread.uw.fpsimd_state.fpsr,
|
||||
start, end);
|
||||
|
||||
out:
|
||||
@@ -1169,7 +1169,7 @@ static int compat_vfp_get(struct task_struct *target,
|
||||
compat_ulong_t fpscr;
|
||||
int ret, vregs_end_pos;
|
||||
|
||||
- uregs = &target->thread.fpsimd_state;
|
||||
+ uregs = &target->thread.uw.fpsimd_state;
|
||||
|
||||
if (target == current)
|
||||
fpsimd_preserve_current_state();
|
||||
@@ -1202,7 +1202,7 @@ static int compat_vfp_set(struct task_struct *target,
|
||||
compat_ulong_t fpscr;
|
||||
int ret, vregs_end_pos;
|
||||
|
||||
- uregs = &target->thread.fpsimd_state;
|
||||
+ uregs = &target->thread.uw.fpsimd_state;
|
||||
|
||||
vregs_end_pos = VFP_STATE_SIZE - sizeof(compat_ulong_t);
|
||||
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, uregs, 0,
|
||||
@@ -1225,7 +1225,7 @@ static int compat_tls_get(struct task_struct *target,
|
||||
const struct user_regset *regset, unsigned int pos,
|
||||
unsigned int count, void *kbuf, void __user *ubuf)
|
||||
{
|
||||
- compat_ulong_t tls = (compat_ulong_t)target->thread.tp_value;
|
||||
+ compat_ulong_t tls = (compat_ulong_t)target->thread.uw.tp_value;
|
||||
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
|
||||
}
|
||||
|
||||
@@ -1235,13 +1235,13 @@ static int compat_tls_set(struct task_struct *target,
|
||||
const void __user *ubuf)
|
||||
{
|
||||
int ret;
|
||||
- compat_ulong_t tls = target->thread.tp_value;
|
||||
+ compat_ulong_t tls = target->thread.uw.tp_value;
|
||||
|
||||
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
- target->thread.tp_value = tls;
|
||||
+ target->thread.uw.tp_value = tls;
|
||||
return ret;
|
||||
}
|
||||
|
||||
@@ -1538,7 +1538,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
|
||||
break;
|
||||
|
||||
case COMPAT_PTRACE_GET_THREAD_AREA:
|
||||
- ret = put_user((compat_ulong_t)child->thread.tp_value,
|
||||
+ ret = put_user((compat_ulong_t)child->thread.uw.tp_value,
|
||||
(compat_ulong_t __user *)datap);
|
||||
break;
|
||||
|
||||
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
|
||||
index d026615..a0c4138 100644
|
||||
--- a/arch/arm64/kernel/signal.c
|
||||
+++ b/arch/arm64/kernel/signal.c
|
||||
@@ -178,7 +178,8 @@ static void __user *apply_user_offset(
|
||||
|
||||
static int preserve_fpsimd_context(struct fpsimd_context __user *ctx)
|
||||
{
|
||||
- struct user_fpsimd_state const *fpsimd = ¤t->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state const *fpsimd =
|
||||
+ ¤t->thread.uw.fpsimd_state;
|
||||
int err;
|
||||
|
||||
/* copy the FP and status/control registers */
|
||||
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
|
||||
index 4ea38d3..884177a 100644
|
||||
--- a/arch/arm64/kernel/signal32.c
|
||||
+++ b/arch/arm64/kernel/signal32.c
|
||||
@@ -148,7 +148,8 @@ union __fpsimd_vreg {
|
||||
|
||||
static int compat_preserve_vfp_context(struct compat_vfp_sigframe __user *frame)
|
||||
{
|
||||
- struct user_fpsimd_state const *fpsimd = ¤t->thread.fpsimd_state;
|
||||
+ struct user_fpsimd_state const *fpsimd =
|
||||
+ ¤t->thread.uw.fpsimd_state;
|
||||
compat_ulong_t magic = VFP_MAGIC;
|
||||
compat_ulong_t size = VFP_STORAGE_SIZE;
|
||||
compat_ulong_t fpscr, fpexc;
|
||||
diff --git a/arch/arm64/kernel/sys_compat.c b/arch/arm64/kernel/sys_compat.c
|
||||
index a382b2a..9155989 100644
|
||||
--- a/arch/arm64/kernel/sys_compat.c
|
||||
+++ b/arch/arm64/kernel/sys_compat.c
|
||||
@@ -88,7 +88,7 @@ long compat_arm_syscall(struct pt_regs *regs)
|
||||
return do_compat_cache_op(regs->regs[0], regs->regs[1], regs->regs[2]);
|
||||
|
||||
case __ARM_NR_compat_set_tls:
|
||||
- current->thread.tp_value = regs->regs[0];
|
||||
+ current->thread.uw.tp_value = regs->regs[0];
|
||||
|
||||
/*
|
||||
* Protect against register corruption from context switch.
|
116
arm64-msm8916-fix-gic_irq_domain_translate-warnings.patch
Normal file
116
arm64-msm8916-fix-gic_irq_domain_translate-warnings.patch
Normal file
@ -0,0 +1,116 @@
|
||||
From patchwork Wed Apr 18 16:34:15 2018
|
||||
Content-Type: text/plain; charset="utf-8"
|
||||
MIME-Version: 1.0
|
||||
Content-Transfer-Encoding: 7bit
|
||||
Subject: arm64: msm8916: fix gic_irq_domain_translate warnings
|
||||
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
||||
X-Patchwork-Id: 10348701
|
||||
Message-Id: <20180418163415.21646-1-srinivas.kandagatla@linaro.org>
|
||||
To: andy.gross@linaro.org, linux-arm-msm@vger.kernel.org
|
||||
Cc: david.brown@linaro.org, robh+dt@kernel.org,
|
||||
linux-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
|
||||
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
|
||||
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
||||
Date: Wed, 18 Apr 2018 17:34:15 +0100
|
||||
|
||||
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
||||
|
||||
Remove the usage of IRQ_TYPE_NONE to fix loud warnings from
|
||||
patch (83a86fbb5b56b "irqchip/gic: Loudly complain about
|
||||
the use of IRQ_TYPE_NONE").
|
||||
|
||||
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
||||
Reviewed-by: Thierry Escande <thierry.escande@linaro.org>
|
||||
Tested-by: Thierry Escande <thierry.escande@linaro.org>
|
||||
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
|
||||
Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
|
||||
Tested-by: Vinod Koul <vkoul@kernel.org>
|
||||
---
|
||||
arch/arm64/boot/dts/qcom/msm8916.dtsi | 18 +++++++++---------
|
||||
1 file changed, 9 insertions(+), 9 deletions(-)
|
||||
|
||||
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
|
||||
index cfbd72186762..5d66a575c7e1 100644
|
||||
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
|
||||
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
|
||||
@@ -180,7 +180,7 @@
|
||||
|
||||
pmu {
|
||||
compatible = "arm,cortex-a53-pmu";
|
||||
- interrupts = <GIC_PPI 7 GIC_CPU_MASK_SIMPLE(4)>;
|
||||
+ interrupts = <GIC_PPI 7 (GIC_CPU_MASK_SIMPLE(4)| IRQ_TYPE_LEVEL_HIGH)>;
|
||||
};
|
||||
|
||||
thermal-zones {
|
||||
@@ -513,7 +513,7 @@
|
||||
blsp_i2c2: i2c@78b6000 {
|
||||
compatible = "qcom,i2c-qup-v2.2.1";
|
||||
reg = <0x078b6000 0x500>;
|
||||
- interrupts = <GIC_SPI 96 0>;
|
||||
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&gcc GCC_BLSP1_AHB_CLK>,
|
||||
<&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>;
|
||||
clock-names = "iface", "core";
|
||||
@@ -528,7 +528,7 @@
|
||||
blsp_i2c4: i2c@78b8000 {
|
||||
compatible = "qcom,i2c-qup-v2.2.1";
|
||||
reg = <0x078b8000 0x500>;
|
||||
- interrupts = <GIC_SPI 98 0>;
|
||||
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&gcc GCC_BLSP1_AHB_CLK>,
|
||||
<&gcc GCC_BLSP1_QUP4_I2C_APPS_CLK>;
|
||||
clock-names = "iface", "core";
|
||||
@@ -543,7 +543,7 @@
|
||||
blsp_i2c6: i2c@78ba000 {
|
||||
compatible = "qcom,i2c-qup-v2.2.1";
|
||||
reg = <0x078ba000 0x500>;
|
||||
- interrupts = <GIC_SPI 100 0>;
|
||||
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&gcc GCC_BLSP1_AHB_CLK>,
|
||||
<&gcc GCC_BLSP1_QUP6_I2C_APPS_CLK>;
|
||||
clock-names = "iface", "core";
|
||||
@@ -575,7 +575,7 @@
|
||||
"mi2s-bit-clk3";
|
||||
#sound-dai-cells = <1>;
|
||||
|
||||
- interrupts = <0 160 0>;
|
||||
+ interrupts = <0 160 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-names = "lpass-irq-lpaif";
|
||||
reg = <0x07708000 0x10000>;
|
||||
reg-names = "lpass-lpaif";
|
||||
@@ -595,7 +595,7 @@
|
||||
reg = <0x07824900 0x11c>, <0x07824000 0x800>;
|
||||
reg-names = "hc_mem", "core_mem";
|
||||
|
||||
- interrupts = <0 123 0>, <0 138 0>;
|
||||
+ interrupts = <0 123 IRQ_TYPE_LEVEL_HIGH>, <0 138 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-names = "hc_irq", "pwr_irq";
|
||||
clocks = <&gcc GCC_SDCC1_APPS_CLK>,
|
||||
<&gcc GCC_SDCC1_AHB_CLK>,
|
||||
@@ -612,7 +612,7 @@
|
||||
reg = <0x07864900 0x11c>, <0x07864000 0x800>;
|
||||
reg-names = "hc_mem", "core_mem";
|
||||
|
||||
- interrupts = <0 125 0>, <0 221 0>;
|
||||
+ interrupts = <0 125 IRQ_TYPE_LEVEL_HIGH>, <0 221 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-names = "hc_irq", "pwr_irq";
|
||||
clocks = <&gcc GCC_SDCC2_APPS_CLK>,
|
||||
<&gcc GCC_SDCC2_AHB_CLK>,
|
||||
@@ -819,7 +819,7 @@
|
||||
iommu-ctx@2000 {
|
||||
compatible = "qcom,msm-iommu-v1-ns";
|
||||
reg = <0x2000 0x1000>;
|
||||
- interrupts = <GIC_SPI 242 0>;
|
||||
+ interrupts = <GIC_SPI 242 IRQ_TYPE_LEVEL_HIGH>;
|
||||
};
|
||||
};
|
||||
|
||||
@@ -864,7 +864,7 @@
|
||||
"bus_clk",
|
||||
"vsync_clk";
|
||||
|
||||
- interrupts = <0 72 0>;
|
||||
+ interrupts = <0 72 IRQ_TYPE_LEVEL_HIGH>;
|
||||
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
@ -1,529 +0,0 @@
|
||||
From 08af112e79cab22f318ca0ad1a48187eee5ac2f0 Mon Sep 17 00:00:00 2001
|
||||
From: Baruch Siach <baruch@tkos.co.il>
|
||||
Date: Tue, 20 Feb 2018 14:19:31 +0200
|
||||
Subject: soc: bcm2835: sync firmware properties with downstream
|
||||
|
||||
Add latest firmware property tags from the latest Raspberry Pi downstream
|
||||
kernel. This is needed for the GPIO tags, so we can control the GPIO
|
||||
multiplexor lines.
|
||||
|
||||
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
|
||||
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
|
||||
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
||||
---
|
||||
include/soc/bcm2835/raspberrypi-firmware.h | 18 ++++++++++++++++++
|
||||
1 file changed, 18 insertions(+)
|
||||
|
||||
diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h
|
||||
index cb979ad..50df5b2 100644
|
||||
--- a/include/soc/bcm2835/raspberrypi-firmware.h
|
||||
+++ b/include/soc/bcm2835/raspberrypi-firmware.h
|
||||
@@ -63,6 +63,7 @@ enum rpi_firmware_property_tag {
|
||||
RPI_FIRMWARE_GET_MIN_VOLTAGE = 0x00030008,
|
||||
RPI_FIRMWARE_GET_TURBO = 0x00030009,
|
||||
RPI_FIRMWARE_GET_MAX_TEMPERATURE = 0x0003000a,
|
||||
+ RPI_FIRMWARE_GET_STC = 0x0003000b,
|
||||
RPI_FIRMWARE_ALLOCATE_MEMORY = 0x0003000c,
|
||||
RPI_FIRMWARE_LOCK_MEMORY = 0x0003000d,
|
||||
RPI_FIRMWARE_UNLOCK_MEMORY = 0x0003000e,
|
||||
@@ -72,12 +73,22 @@ enum rpi_firmware_property_tag {
|
||||
RPI_FIRMWARE_SET_ENABLE_QPU = 0x00030012,
|
||||
RPI_FIRMWARE_GET_DISPMANX_RESOURCE_MEM_HANDLE = 0x00030014,
|
||||
RPI_FIRMWARE_GET_EDID_BLOCK = 0x00030020,
|
||||
+ RPI_FIRMWARE_GET_CUSTOMER_OTP = 0x00030021,
|
||||
RPI_FIRMWARE_GET_DOMAIN_STATE = 0x00030030,
|
||||
RPI_FIRMWARE_SET_CLOCK_STATE = 0x00038001,
|
||||
RPI_FIRMWARE_SET_CLOCK_RATE = 0x00038002,
|
||||
RPI_FIRMWARE_SET_VOLTAGE = 0x00038003,
|
||||
RPI_FIRMWARE_SET_TURBO = 0x00038009,
|
||||
+ RPI_FIRMWARE_SET_CUSTOMER_OTP = 0x00038021,
|
||||
RPI_FIRMWARE_SET_DOMAIN_STATE = 0x00038030,
|
||||
+ RPI_FIRMWARE_GET_GPIO_STATE = 0x00030041,
|
||||
+ RPI_FIRMWARE_SET_GPIO_STATE = 0x00038041,
|
||||
+ RPI_FIRMWARE_SET_SDHOST_CLOCK = 0x00038042,
|
||||
+ RPI_FIRMWARE_GET_GPIO_CONFIG = 0x00030043,
|
||||
+ RPI_FIRMWARE_SET_GPIO_CONFIG = 0x00038043,
|
||||
+ RPI_FIRMWARE_GET_PERIPH_REG = 0x00030045,
|
||||
+ RPI_FIRMWARE_SET_PERIPH_REG = 0x00038045,
|
||||
+
|
||||
|
||||
/* Dispmanx TAGS */
|
||||
RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE = 0x00040001,
|
||||
@@ -91,6 +102,8 @@ enum rpi_firmware_property_tag {
|
||||
RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_OFFSET = 0x00040009,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN = 0x0004000a,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_GET_PALETTE = 0x0004000b,
|
||||
+ RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF = 0x0004000f,
|
||||
+ RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF = 0x00040010,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_RELEASE = 0x00048001,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_TEST_PHYSICAL_WIDTH_HEIGHT = 0x00044003,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_WIDTH_HEIGHT = 0x00044004,
|
||||
@@ -100,6 +113,7 @@ enum rpi_firmware_property_tag {
|
||||
RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_OFFSET = 0x00044009,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_TEST_OVERSCAN = 0x0004400a,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_TEST_PALETTE = 0x0004400b,
|
||||
+ RPI_FIRMWARE_FRAMEBUFFER_TEST_VSYNC = 0x0004400e,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT = 0x00048003,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT = 0x00048004,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH = 0x00048005,
|
||||
@@ -108,6 +122,10 @@ enum rpi_firmware_property_tag {
|
||||
RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET = 0x00048009,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN = 0x0004800a,
|
||||
RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE = 0x0004800b,
|
||||
+ RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF = 0x0004801f,
|
||||
+ RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF = 0x00048020,
|
||||
+ RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC = 0x0004800e,
|
||||
+ RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT = 0x0004800f,
|
||||
|
||||
RPI_FIRMWARE_VCHIQ_INIT = 0x00048010,
|
||||
|
||||
--
|
||||
cgit v1.1
|
||||
From 9777d8099a4a9df1625b4caaee1388c0158478c5 Mon Sep 17 00:00:00 2001
|
||||
From: Baruch Siach <baruch@tkos.co.il>
|
||||
Date: Tue, 20 Feb 2018 14:19:32 +0200
|
||||
Subject: dt-bindings: gpio: add raspberry pi GPIO expander binding
|
||||
|
||||
The Raspberry Pi 3 GPIO expander is controlled by the VC4 firmware over
|
||||
I2C. The firmware mailbox interface allows the ARM core to control the
|
||||
GPIO lines.
|
||||
|
||||
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
|
||||
Reviewed-by: Rob Herring <robh@kernel.org>
|
||||
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
||||
---
|
||||
.../bindings/gpio/raspberrypi,firmware-gpio.txt | 30 ++++++++++++++++++++++
|
||||
1 file changed, 30 insertions(+)
|
||||
create mode 100644 Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt
|
||||
|
||||
diff --git a/Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt b/Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt
|
||||
new file mode 100644
|
||||
index 0000000..ce97265
|
||||
--- /dev/null
|
||||
+++ b/Documentation/devicetree/bindings/gpio/raspberrypi,firmware-gpio.txt
|
||||
@@ -0,0 +1,30 @@
|
||||
+Raspberry Pi GPIO expander
|
||||
+
|
||||
+The Raspberry Pi 3 GPIO expander is controlled by the VC4 firmware. The
|
||||
+firmware exposes a mailbox interface that allows the ARM core to control the
|
||||
+GPIO lines on the expander.
|
||||
+
|
||||
+The Raspberry Pi GPIO expander node must be a child node of the Raspberry Pi
|
||||
+firmware node.
|
||||
+
|
||||
+Required properties:
|
||||
+
|
||||
+- compatible : Should be "raspberrypi,firmware-gpio"
|
||||
+- gpio-controller : Marks the device node as a gpio controller
|
||||
+- #gpio-cells : Should be two. The first cell is the pin number, and
|
||||
+ the second cell is used to specify the gpio polarity:
|
||||
+ 0 = active high
|
||||
+ 1 = active low
|
||||
+
|
||||
+Example:
|
||||
+
|
||||
+firmware: firmware-rpi {
|
||||
+ compatible = "raspberrypi,bcm2835-firmware";
|
||||
+ mboxes = <&mailbox>;
|
||||
+
|
||||
+ expgpio: gpio {
|
||||
+ compatible = "raspberrypi,firmware-gpio";
|
||||
+ gpio-controller;
|
||||
+ #gpio-cells = <2>;
|
||||
+ };
|
||||
+};
|
||||
--
|
||||
cgit v1.1
|
||||
From a98d90e7d588045716c3c85d63f93dc3f15a079b Mon Sep 17 00:00:00 2001
|
||||
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
||||
Date: Tue, 20 Feb 2018 14:19:33 +0200
|
||||
Subject: gpio: raspberrypi-exp: Driver for RPi3 GPIO expander via mailbox
|
||||
service
|
||||
|
||||
Pi3 and Compute Module 3 have a GPIO expander that the
|
||||
VPU communicates with.
|
||||
There is a mailbox service that now allows control of this
|
||||
expander, so add a kernel driver that can make use of it.
|
||||
|
||||
Reviewed-by: Stefan Wahren <stefan.wahren@i2se.com>
|
||||
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
||||
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
|
||||
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
||||
---
|
||||
drivers/gpio/Kconfig | 9 ++
|
||||
drivers/gpio/Makefile | 1 +
|
||||
drivers/gpio/gpio-raspberrypi-exp.c | 252 ++++++++++++++++++++++++++++++++++++
|
||||
3 files changed, 262 insertions(+)
|
||||
create mode 100644 drivers/gpio/gpio-raspberrypi-exp.c
|
||||
|
||||
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
|
||||
index 8dbb228..fd0562a 100644
|
||||
--- a/drivers/gpio/Kconfig
|
||||
+++ b/drivers/gpio/Kconfig
|
||||
@@ -122,6 +122,15 @@ config GPIO_ATH79
|
||||
Select this option to enable GPIO driver for
|
||||
Atheros AR71XX/AR724X/AR913X SoC devices.
|
||||
|
||||
+config GPIO_RASPBERRYPI_EXP
|
||||
+ tristate "Raspberry Pi 3 GPIO Expander"
|
||||
+ default RASPBERRYPI_FIRMWARE
|
||||
+ depends on OF_GPIO
|
||||
+ depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || COMPILE_TEST
|
||||
+ help
|
||||
+ Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
|
||||
+ the firmware mailbox to communicate with VideoCore on BCM283x chips.
|
||||
+
|
||||
config GPIO_BCM_KONA
|
||||
bool "Broadcom Kona GPIO"
|
||||
depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
|
||||
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
|
||||
index cccb0d4..76dc0a0 100644
|
||||
--- a/drivers/gpio/Makefile
|
||||
+++ b/drivers/gpio/Makefile
|
||||
@@ -32,6 +32,7 @@ obj-$(CONFIG_GPIO_AMDPT) += gpio-amdpt.o
|
||||
obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o
|
||||
obj-$(CONFIG_GPIO_ATH79) += gpio-ath79.o
|
||||
obj-$(CONFIG_GPIO_ASPEED) += gpio-aspeed.o
|
||||
+obj-$(CONFIG_GPIO_RASPBERRYPI_EXP) += gpio-raspberrypi-exp.o
|
||||
obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o
|
||||
obj-$(CONFIG_GPIO_BD9571MWV) += gpio-bd9571mwv.o
|
||||
obj-$(CONFIG_GPIO_BRCMSTB) += gpio-brcmstb.o
|
||||
diff --git a/drivers/gpio/gpio-raspberrypi-exp.c b/drivers/gpio/gpio-raspberrypi-exp.c
|
||||
new file mode 100644
|
||||
index 0000000..d6d36d5
|
||||
--- /dev/null
|
||||
+++ b/drivers/gpio/gpio-raspberrypi-exp.c
|
||||
@@ -0,0 +1,252 @@
|
||||
+// SPDX-License-Identifier: GPL-2.0+
|
||||
+/*
|
||||
+ * Raspberry Pi 3 expander GPIO driver
|
||||
+ *
|
||||
+ * Uses the firmware mailbox service to communicate with the
|
||||
+ * GPIO expander on the VPU.
|
||||
+ *
|
||||
+ * Copyright (C) 2017 Raspberry Pi Trading Ltd.
|
||||
+ */
|
||||
+
|
||||
+#include <linux/err.h>
|
||||
+#include <linux/gpio/driver.h>
|
||||
+#include <linux/module.h>
|
||||
+#include <linux/platform_device.h>
|
||||
+#include <soc/bcm2835/raspberrypi-firmware.h>
|
||||
+
|
||||
+#define MODULE_NAME "raspberrypi-exp-gpio"
|
||||
+#define NUM_GPIO 8
|
||||
+
|
||||
+#define RPI_EXP_GPIO_BASE 128
|
||||
+
|
||||
+#define RPI_EXP_GPIO_DIR_IN 0
|
||||
+#define RPI_EXP_GPIO_DIR_OUT 1
|
||||
+
|
||||
+struct rpi_exp_gpio {
|
||||
+ struct gpio_chip gc;
|
||||
+ struct rpi_firmware *fw;
|
||||
+};
|
||||
+
|
||||
+/* VC4 firmware mailbox interface data structures */
|
||||
+
|
||||
+struct gpio_set_config {
|
||||
+ u32 gpio;
|
||||
+ u32 direction;
|
||||
+ u32 polarity;
|
||||
+ u32 term_en;
|
||||
+ u32 term_pull_up;
|
||||
+ u32 state;
|
||||
+};
|
||||
+
|
||||
+struct gpio_get_config {
|
||||
+ u32 gpio;
|
||||
+ u32 direction;
|
||||
+ u32 polarity;
|
||||
+ u32 term_en;
|
||||
+ u32 term_pull_up;
|
||||
+};
|
||||
+
|
||||
+struct gpio_get_set_state {
|
||||
+ u32 gpio;
|
||||
+ u32 state;
|
||||
+};
|
||||
+
|
||||
+static int rpi_exp_gpio_get_polarity(struct gpio_chip *gc, unsigned int off)
|
||||
+{
|
||||
+ struct rpi_exp_gpio *gpio;
|
||||
+ struct gpio_get_config get;
|
||||
+ int ret;
|
||||
+
|
||||
+ gpio = gpiochip_get_data(gc);
|
||||
+
|
||||
+ get.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
|
||||
+
|
||||
+ ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_GET_GPIO_CONFIG,
|
||||
+ &get, sizeof(get));
|
||||
+ if (ret || get.gpio != 0) {
|
||||
+ dev_err(gc->parent, "Failed to get GPIO %u config (%d %x)\n",
|
||||
+ off, ret, get.gpio);
|
||||
+ return ret ? ret : -EIO;
|
||||
+ }
|
||||
+ return get.polarity;
|
||||
+}
|
||||
+
|
||||
+static int rpi_exp_gpio_dir_in(struct gpio_chip *gc, unsigned int off)
|
||||
+{
|
||||
+ struct rpi_exp_gpio *gpio;
|
||||
+ struct gpio_set_config set_in;
|
||||
+ int ret;
|
||||
+
|
||||
+ gpio = gpiochip_get_data(gc);
|
||||
+
|
||||
+ set_in.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
|
||||
+ set_in.direction = RPI_EXP_GPIO_DIR_IN;
|
||||
+ set_in.term_en = 0; /* termination disabled */
|
||||
+ set_in.term_pull_up = 0; /* n/a as termination disabled */
|
||||
+ set_in.state = 0; /* n/a as configured as an input */
|
||||
+
|
||||
+ ret = rpi_exp_gpio_get_polarity(gc, off);
|
||||
+ if (ret < 0)
|
||||
+ return ret;
|
||||
+ set_in.polarity = ret; /* Retain existing setting */
|
||||
+
|
||||
+ ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_SET_GPIO_CONFIG,
|
||||
+ &set_in, sizeof(set_in));
|
||||
+ if (ret || set_in.gpio != 0) {
|
||||
+ dev_err(gc->parent, "Failed to set GPIO %u to input (%d %x)\n",
|
||||
+ off, ret, set_in.gpio);
|
||||
+ return ret ? ret : -EIO;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int rpi_exp_gpio_dir_out(struct gpio_chip *gc, unsigned int off, int val)
|
||||
+{
|
||||
+ struct rpi_exp_gpio *gpio;
|
||||
+ struct gpio_set_config set_out;
|
||||
+ int ret;
|
||||
+
|
||||
+ gpio = gpiochip_get_data(gc);
|
||||
+
|
||||
+ set_out.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
|
||||
+ set_out.direction = RPI_EXP_GPIO_DIR_OUT;
|
||||
+ set_out.term_en = 0; /* n/a as an output */
|
||||
+ set_out.term_pull_up = 0; /* n/a as termination disabled */
|
||||
+ set_out.state = val; /* Output state */
|
||||
+
|
||||
+ ret = rpi_exp_gpio_get_polarity(gc, off);
|
||||
+ if (ret < 0)
|
||||
+ return ret;
|
||||
+ set_out.polarity = ret; /* Retain existing setting */
|
||||
+
|
||||
+ ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_SET_GPIO_CONFIG,
|
||||
+ &set_out, sizeof(set_out));
|
||||
+ if (ret || set_out.gpio != 0) {
|
||||
+ dev_err(gc->parent, "Failed to set GPIO %u to output (%d %x)\n",
|
||||
+ off, ret, set_out.gpio);
|
||||
+ return ret ? ret : -EIO;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int rpi_exp_gpio_get_direction(struct gpio_chip *gc, unsigned int off)
|
||||
+{
|
||||
+ struct rpi_exp_gpio *gpio;
|
||||
+ struct gpio_get_config get;
|
||||
+ int ret;
|
||||
+
|
||||
+ gpio = gpiochip_get_data(gc);
|
||||
+
|
||||
+ get.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
|
||||
+
|
||||
+ ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_GET_GPIO_CONFIG,
|
||||
+ &get, sizeof(get));
|
||||
+ if (ret || get.gpio != 0) {
|
||||
+ dev_err(gc->parent,
|
||||
+ "Failed to get GPIO %u config (%d %x)\n", off, ret,
|
||||
+ get.gpio);
|
||||
+ return ret ? ret : -EIO;
|
||||
+ }
|
||||
+ return !get.direction;
|
||||
+}
|
||||
+
|
||||
+static int rpi_exp_gpio_get(struct gpio_chip *gc, unsigned int off)
|
||||
+{
|
||||
+ struct rpi_exp_gpio *gpio;
|
||||
+ struct gpio_get_set_state get;
|
||||
+ int ret;
|
||||
+
|
||||
+ gpio = gpiochip_get_data(gc);
|
||||
+
|
||||
+ get.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
|
||||
+ get.state = 0; /* storage for returned value */
|
||||
+
|
||||
+ ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_GET_GPIO_STATE,
|
||||
+ &get, sizeof(get));
|
||||
+ if (ret || get.gpio != 0) {
|
||||
+ dev_err(gc->parent,
|
||||
+ "Failed to get GPIO %u state (%d %x)\n", off, ret,
|
||||
+ get.gpio);
|
||||
+ return ret ? ret : -EIO;
|
||||
+ }
|
||||
+ return !!get.state;
|
||||
+}
|
||||
+
|
||||
+static void rpi_exp_gpio_set(struct gpio_chip *gc, unsigned int off, int val)
|
||||
+{
|
||||
+ struct rpi_exp_gpio *gpio;
|
||||
+ struct gpio_get_set_state set;
|
||||
+ int ret;
|
||||
+
|
||||
+ gpio = gpiochip_get_data(gc);
|
||||
+
|
||||
+ set.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
|
||||
+ set.state = val; /* Output state */
|
||||
+
|
||||
+ ret = rpi_firmware_property(gpio->fw, RPI_FIRMWARE_SET_GPIO_STATE,
|
||||
+ &set, sizeof(set));
|
||||
+ if (ret || set.gpio != 0)
|
||||
+ dev_err(gc->parent,
|
||||
+ "Failed to set GPIO %u state (%d %x)\n", off, ret,
|
||||
+ set.gpio);
|
||||
+}
|
||||
+
|
||||
+static int rpi_exp_gpio_probe(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct device *dev = &pdev->dev;
|
||||
+ struct device_node *np = dev->of_node;
|
||||
+ struct device_node *fw_node;
|
||||
+ struct rpi_firmware *fw;
|
||||
+ struct rpi_exp_gpio *rpi_gpio;
|
||||
+
|
||||
+ fw_node = of_get_parent(np);
|
||||
+ if (!fw_node) {
|
||||
+ dev_err(dev, "Missing firmware node\n");
|
||||
+ return -ENOENT;
|
||||
+ }
|
||||
+
|
||||
+ fw = rpi_firmware_get(fw_node);
|
||||
+ if (!fw)
|
||||
+ return -EPROBE_DEFER;
|
||||
+
|
||||
+ rpi_gpio = devm_kzalloc(dev, sizeof(*rpi_gpio), GFP_KERNEL);
|
||||
+ if (!rpi_gpio)
|
||||
+ return -ENOMEM;
|
||||
+
|
||||
+ rpi_gpio->fw = fw;
|
||||
+ rpi_gpio->gc.parent = dev;
|
||||
+ rpi_gpio->gc.label = MODULE_NAME;
|
||||
+ rpi_gpio->gc.owner = THIS_MODULE;
|
||||
+ rpi_gpio->gc.of_node = np;
|
||||
+ rpi_gpio->gc.base = -1;
|
||||
+ rpi_gpio->gc.ngpio = NUM_GPIO;
|
||||
+
|
||||
+ rpi_gpio->gc.direction_input = rpi_exp_gpio_dir_in;
|
||||
+ rpi_gpio->gc.direction_output = rpi_exp_gpio_dir_out;
|
||||
+ rpi_gpio->gc.get_direction = rpi_exp_gpio_get_direction;
|
||||
+ rpi_gpio->gc.get = rpi_exp_gpio_get;
|
||||
+ rpi_gpio->gc.set = rpi_exp_gpio_set;
|
||||
+ rpi_gpio->gc.can_sleep = true;
|
||||
+
|
||||
+ return devm_gpiochip_add_data(dev, &rpi_gpio->gc, rpi_gpio);
|
||||
+}
|
||||
+
|
||||
+static const struct of_device_id rpi_exp_gpio_ids[] = {
|
||||
+ { .compatible = "raspberrypi,firmware-gpio" },
|
||||
+ { }
|
||||
+};
|
||||
+MODULE_DEVICE_TABLE(of, rpi_exp_gpio_ids);
|
||||
+
|
||||
+static struct platform_driver rpi_exp_gpio_driver = {
|
||||
+ .driver = {
|
||||
+ .name = MODULE_NAME,
|
||||
+ .of_match_table = of_match_ptr(rpi_exp_gpio_ids),
|
||||
+ },
|
||||
+ .probe = rpi_exp_gpio_probe,
|
||||
+};
|
||||
+module_platform_driver(rpi_exp_gpio_driver);
|
||||
+
|
||||
+MODULE_LICENSE("GPL");
|
||||
+MODULE_AUTHOR("Dave Stevenson <dave.stevenson@raspberrypi.org>");
|
||||
+MODULE_DESCRIPTION("Raspberry Pi 3 expander GPIO driver");
|
||||
+MODULE_ALIAS("platform:rpi-exp-gpio");
|
||||
--
|
||||
cgit v1.1
|
||||
From b0c07c5af6d286f3d3b907743998e9d41f6ab042 Mon Sep 17 00:00:00 2001
|
||||
From: Baruch Siach <baruch@tkos.co.il>
|
||||
Date: Tue, 20 Feb 2018 14:19:34 +0200
|
||||
Subject: ARM: dts: bcm2835: make the firmware node into a bus
|
||||
|
||||
This allows adding devices for which the firmware exposes control interface
|
||||
via the mailbox. An example of such device is the GPIO expander.
|
||||
|
||||
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
|
||||
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
|
||||
Reviewed-by: Eric Anholt <eric@anholt.net>
|
||||
Signed-off-by: Eric Anholt <eric@anholt.net>
|
||||
---
|
||||
arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 +++-
|
||||
1 file changed, 3 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
|
||||
index e36c392..0198bd4 100644
|
||||
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
|
||||
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
|
||||
@@ -18,7 +18,9 @@
|
||||
|
||||
soc {
|
||||
firmware: firmware {
|
||||
- compatible = "raspberrypi,bcm2835-firmware";
|
||||
+ compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
|
||||
+ #address-cells = <0>;
|
||||
+ #size-cells = <0>;
|
||||
mboxes = <&mailbox>;
|
||||
};
|
||||
|
||||
--
|
||||
cgit v1.1
|
||||
From 4d5b2eaf3ca80c56a59f230208c4ff11e3f68d55 Mon Sep 17 00:00:00 2001
|
||||
From: Baruch Siach <baruch@tkos.co.il>
|
||||
Date: Tue, 20 Feb 2018 14:19:35 +0200
|
||||
Subject: ARM: dts: bcm2837-rpi-3-b: add GPIO expander
|
||||
|
||||
Add a description of the RPi3 GPIO expander that the VC4 firmware controls.
|
||||
|
||||
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
|
||||
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
|
||||
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
|
||||
Reviewed-by: Eric Anholt <eric@anholt.net>
|
||||
Signed-off-by: Eric Anholt <eric@anholt.net>
|
||||
---
|
||||
arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 17 +++++++++++++++++
|
||||
1 file changed, 17 insertions(+)
|
||||
|
||||
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
|
||||
index 3e4ed7c..0b31d99 100644
|
||||
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
|
||||
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
|
||||
@@ -25,6 +25,23 @@
|
||||
};
|
||||
};
|
||||
|
||||
+&firmware {
|
||||
+ expgpio: gpio {
|
||||
+ compatible = "raspberrypi,firmware-gpio";
|
||||
+ gpio-controller;
|
||||
+ #gpio-cells = <2>;
|
||||
+ gpio-line-names = "BT_ON",
|
||||
+ "WL_ON",
|
||||
+ "STATUS_LED",
|
||||
+ "LAN_RUN",
|
||||
+ "HPD_N",
|
||||
+ "CAM_GPIO0",
|
||||
+ "CAM_GPIO1",
|
||||
+ "PWR_LOW_N";
|
||||
+ status = "okay";
|
||||
+ };
|
||||
+};
|
||||
+
|
||||
/* uart0 communicates with the BT module */
|
||||
&uart0 {
|
||||
pinctrl-names = "default";
|
||||
--
|
||||
cgit v1.1
|
@ -1,77 +1,3 @@
|
||||
From 502356f8db439d77a41958041feec187c42f72bb Mon Sep 17 00:00:00 2001
|
||||
From: Phil Elwell <phil@raspberrypi.org>
|
||||
Date: Wed, 11 Apr 2018 12:02:47 +0100
|
||||
Subject: [PATCH 3/9] lan78xx: Avoid spurious kevent 4 "error"
|
||||
|
||||
lan78xx_defer_event generates an error message whenever the work item
|
||||
is already scheduled. lan78xx_open defers three events -
|
||||
EVENT_STAT_UPDATE, EVENT_DEV_OPEN and EVENT_LINK_RESET. Being aware
|
||||
of the likelihood (or certainty) of an error message, the DEV_OPEN
|
||||
event is added to the set of pending events directly, relying on
|
||||
the subsequent deferral of the EVENT_LINK_RESET call to schedule the
|
||||
work. Take the same precaution with EVENT_STAT_UPDATE to avoid a
|
||||
totally unnecessary error message.
|
||||
|
||||
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
||||
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||||
---
|
||||
drivers/net/usb/lan78xx.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
|
||||
index 145bb7cbf5b2..bdb696612e11 100644
|
||||
--- a/drivers/net/usb/lan78xx.c
|
||||
+++ b/drivers/net/usb/lan78xx.c
|
||||
@@ -2503,7 +2503,7 @@ static void lan78xx_init_stats(struct lan78xx_net *dev)
|
||||
dev->stats.rollover_max.eee_tx_lpi_transitions = 0xFFFFFFFF;
|
||||
dev->stats.rollover_max.eee_tx_lpi_time = 0xFFFFFFFF;
|
||||
|
||||
- lan78xx_defer_kevent(dev, EVENT_STAT_UPDATE);
|
||||
+ set_bit(EVENT_STAT_UPDATE, &dev->flags);
|
||||
}
|
||||
|
||||
static int lan78xx_open(struct net_device *net)
|
||||
--
|
||||
2.17.0
|
||||
|
||||
From d9332c56373a8c43bc4761267ba3a246082e2270 Mon Sep 17 00:00:00 2001
|
||||
From: Phil Elwell <phil@raspberrypi.org>
|
||||
Date: Tue, 10 Apr 2018 13:18:25 +0100
|
||||
Subject: [PATCH 4/9] lan78xx: Don't reset the interface on open
|
||||
|
||||
Commit 92571a1aae40 ("lan78xx: Connect phy early") moves the PHY
|
||||
initialisation into lan78xx_probe, but lan78xx_open subsequently calls
|
||||
lan78xx_reset. As well as forcing a second round of link negotiation,
|
||||
this reset frequently prevents the phy interrupt from being generated
|
||||
(even though the link is up), rendering the interface unusable.
|
||||
|
||||
Fix this issue by removing the lan78xx_reset call from lan78xx_open.
|
||||
|
||||
Fixes: 92571a1aae40 ("lan78xx: Connect phy early")
|
||||
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
||||
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||||
---
|
||||
drivers/net/usb/lan78xx.c | 4 ----
|
||||
1 file changed, 4 deletions(-)
|
||||
|
||||
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
|
||||
index bdb696612e11..0867f7275852 100644
|
||||
--- a/drivers/net/usb/lan78xx.c
|
||||
+++ b/drivers/net/usb/lan78xx.c
|
||||
@@ -2515,10 +2515,6 @@ static int lan78xx_open(struct net_device *net)
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
|
||||
- ret = lan78xx_reset(dev);
|
||||
- if (ret < 0)
|
||||
- goto done;
|
||||
-
|
||||
phy_start(net->phydev);
|
||||
|
||||
netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
|
||||
--
|
||||
2.17.0
|
||||
|
||||
From bce4fe9fa48df0cbbe842e80d9a520f7265b4cd4 Mon Sep 17 00:00:00 2001
|
||||
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
||||
Date: Wed, 4 Apr 2018 16:34:24 +0100
|
||||
@ -524,4 +450,3 @@ index 8f9c90379732..fd1fc8c248ef 100644
|
||||
#endif /* _MICROCHIPPHY_H */
|
||||
--
|
||||
2.17.0
|
||||
|
||||
|
@ -1,74 +0,0 @@
|
||||
From patchwork Fri Feb 16 10:55:33 2018
|
||||
Content-Type: text/plain; charset="utf-8"
|
||||
MIME-Version: 1.0
|
||||
Content-Transfer-Encoding: 7bit
|
||||
Subject: [V3, 1/2,
|
||||
RESEND] dt-bindings: bcm283x: Fix register ranges of bcm2835-i2s
|
||||
From: Stefan Wahren <stefan.wahren@i2se.com>
|
||||
X-Patchwork-Id: 10224429
|
||||
Message-Id: <1518778534-3328-2-git-send-email-stefan.wahren@i2se.com>
|
||||
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
|
||||
Eric Anholt <eric@anholt.net>
|
||||
Cc: Stefan Wahren <stefan.wahren@i2se.com>, devicetree@vger.kernel.org,
|
||||
alsa-devel@alsa-project.org, Liam Girdwood <lgirdwood@gmail.com>,
|
||||
Mark Brown <broonie@kernel.org>, linux-rpi-kernel@lists.infradead.org,
|
||||
linux-arm-kernel@lists.infradead.org
|
||||
Date: Fri, 16 Feb 2018 11:55:33 +0100
|
||||
|
||||
Since 517e7a1537a ("ASoC: bcm2835: move to use the clock framework")
|
||||
the bcm2835-i2s requires a clock as DT property. Unfortunately
|
||||
the necessary DT change has never been applied. While we are at it
|
||||
also fix the first PCM register range to cover the PCM_GRAY register.
|
||||
|
||||
This patch only fixes the affected dt-bindings.
|
||||
|
||||
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
|
||||
Reviewed-by: Eric Anholt <eric@anholt.net>
|
||||
Reviewed-by: Rob Herring <robh@kernel.org>
|
||||
---
|
||||
Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt | 4 ++--
|
||||
Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt | 9 ++++-----
|
||||
2 files changed, 6 insertions(+), 7 deletions(-)
|
||||
|
||||
diff --git a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
|
||||
index baf9b34..b6a8cc0 100644
|
||||
--- a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
|
||||
+++ b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
|
||||
@@ -74,8 +74,8 @@ Example:
|
||||
|
||||
bcm2835_i2s: i2s@7e203000 {
|
||||
compatible = "brcm,bcm2835-i2s";
|
||||
- reg = < 0x7e203000 0x20>,
|
||||
- < 0x7e101098 0x02>;
|
||||
+ reg = < 0x7e203000 0x24>;
|
||||
+ clocks = <&clocks BCM2835_CLOCK_PCM>;
|
||||
|
||||
dmas = <&dma 2>,
|
||||
<&dma 3>;
|
||||
diff --git a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt
|
||||
index 65783de..7bb0362 100644
|
||||
--- a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt
|
||||
+++ b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt
|
||||
@@ -2,9 +2,8 @@
|
||||
|
||||
Required properties:
|
||||
- compatible: "brcm,bcm2835-i2s"
|
||||
-- reg: A list of base address and size entries:
|
||||
- * The first entry should cover the PCM registers
|
||||
- * The second entry should cover the PCM clock registers
|
||||
+- reg: Should contain PCM registers location and length.
|
||||
+- clocks: the (PCM) clock to use
|
||||
- dmas: List of DMA controller phandle and DMA request line ordered pairs.
|
||||
- dma-names: Identifier string for each DMA request line in the dmas property.
|
||||
These strings correspond 1:1 with the ordered pairs in dmas.
|
||||
@@ -16,8 +15,8 @@ Example:
|
||||
|
||||
bcm2835_i2s: i2s@7e203000 {
|
||||
compatible = "brcm,bcm2835-i2s";
|
||||
- reg = <0x7e203000 0x20>,
|
||||
- <0x7e101098 0x02>;
|
||||
+ reg = <0x7e203000 0x24>;
|
||||
+ clocks = <&clocks BCM2835_CLOCK_PCM>;
|
||||
|
||||
dmas = <&dma 2>,
|
||||
<&dma 3>;
|
@ -1,127 +0,0 @@
|
||||
From patchwork Thu Aug 3 15:52:08 2017
|
||||
Content-Type: text/plain; charset="utf-8"
|
||||
MIME-Version: 1.0
|
||||
Content-Transfer-Encoding: 7bit
|
||||
Subject: [v3] dma-mapping: skip USB devices when configuring DMA during probe
|
||||
From: Johan Hovold <johan@kernel.org>
|
||||
X-Patchwork-Id: 9879371
|
||||
Message-Id: <20170803155208.22165-1-johan@kernel.org>
|
||||
To: Christoph Hellwig <hch@lst.de>,
|
||||
Marek Szyprowski <m.szyprowski@samsung.com>,
|
||||
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||||
Cc: =?UTF-8?q?Andreas=20F=C3=A4rber?= <afaerber@suse.de>,
|
||||
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
|
||||
Alan Stern <stern@rowland.harvard.edu>, Johan Hovold <johan@kernel.org>,
|
||||
stable <stable@vger.kernel.org>, Robin Murphy <robin.murphy@arm.com>,
|
||||
Sricharan R <sricharan@codeaurora.org>,
|
||||
Stefan Wahren <stefan.wahren@i2se.com>
|
||||
Date: Thu, 3 Aug 2017 17:52:08 +0200
|
||||
|
||||
USB devices use the DMA mask and offset of the controller, which have
|
||||
already been setup when a device is probed. Note that modifying the
|
||||
DMA mask of a USB device would change the mask for the controller (and
|
||||
all devices on the bus) as the mask is literally shared.
|
||||
|
||||
Since commit 2bf698671205 ("USB: of: fix root-hub device-tree node
|
||||
handling"), of_dma_configure() would be called also for root hubs, which
|
||||
use the device node of the controller. A separate, long-standing bug
|
||||
that makes of_dma_configure() generate a 30-bit DMA mask from the RPI3's
|
||||
"dma-ranges" would thus set a broken mask also for the controller. This
|
||||
in turn prevents USB devices from enumerating when control transfers
|
||||
fail:
|
||||
|
||||
dwc2 3f980000.usb: Cannot do DMA to address 0x000000003a166a00
|
||||
|
||||
Note that the aforementioned DMA-mask bug was benign for the HCD itself
|
||||
as the dwc2 driver overwrites the mask previously set by
|
||||
of_dma_configure() for the platform device in its probe callback. The
|
||||
mask would only later get corrupted when the root-hub child device was
|
||||
probed.
|
||||
|
||||
Fix this, and similar future problems, by adding a flag to struct device
|
||||
which prevents driver core from calling dma_configure() during probe and
|
||||
making sure it is set for USB devices.
|
||||
|
||||
Fixes: 09515ef5ddad ("of/acpi: Configure dma operations at probe time for platform/amba/pci bus devices")
|
||||
Cc: stable <stable@vger.kernel.org> # 4.12
|
||||
Cc: Robin Murphy <robin.murphy@arm.com>
|
||||
Cc: Sricharan R <sricharan@codeaurora.org>
|
||||
Cc: Stefan Wahren <stefan.wahren@i2se.com>
|
||||
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
|
||||
Signed-off-by: Johan Hovold <johan@kernel.org>
|
||||
---
|
||||
|
||||
v3
|
||||
- add flag to struct device to prevent DMA configuration during probe instead
|
||||
of checking for the USB bus type, which is not available when USB is built
|
||||
as a module as noted by Alan
|
||||
- drop moderated rpi list from CC
|
||||
|
||||
v2
|
||||
- amend commit message and point out that the long-standing 30-bit DMA-mask
|
||||
bug was benign to the dwc2 HCD itself (Robin)
|
||||
- add and use a new dev_is_usb() helper (Robin)
|
||||
|
||||
|
||||
drivers/base/dma-mapping.c | 6 ++++++
|
||||
drivers/usb/core/usb.c | 1 +
|
||||
include/linux/device.h | 3 +++
|
||||
3 files changed, 10 insertions(+)
|
||||
|
||||
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
|
||||
index b555ff9dd8fc..f9f703be0ad1 100644
|
||||
--- a/drivers/base/dma-mapping.c
|
||||
+++ b/drivers/base/dma-mapping.c
|
||||
@@ -345,6 +345,9 @@ int dma_configure(struct device *dev)
|
||||
enum dev_dma_attr attr;
|
||||
int ret = 0;
|
||||
|
||||
+ if (dev->skip_dma_configure)
|
||||
+ return 0;
|
||||
+
|
||||
if (dev_is_pci(dev)) {
|
||||
bridge = pci_get_host_bridge_device(to_pci_dev(dev));
|
||||
dma_dev = bridge;
|
||||
@@ -369,6 +372,9 @@ int dma_configure(struct device *dev)
|
||||
|
||||
void dma_deconfigure(struct device *dev)
|
||||
{
|
||||
+ if (dev->skip_dma_configure)
|
||||
+ return;
|
||||
+
|
||||
of_dma_deconfigure(dev);
|
||||
acpi_dma_deconfigure(dev);
|
||||
}
|
||||
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
|
||||
index 17681d5638ac..2a85d905b539 100644
|
||||
--- a/drivers/usb/core/usb.c
|
||||
+++ b/drivers/usb/core/usb.c
|
||||
@@ -588,6 +588,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
|
||||
* Note: calling dma_set_mask() on a USB device would set the
|
||||
* mask for the entire HCD, so don't do that.
|
||||
*/
|
||||
+ dev->dev.skip_dma_configure = true;
|
||||
dev->dev.dma_mask = bus->sysdev->dma_mask;
|
||||
dev->dev.dma_pfn_offset = bus->sysdev->dma_pfn_offset;
|
||||
set_dev_node(&dev->dev, dev_to_node(bus->sysdev));
|
||||
diff --git a/include/linux/device.h b/include/linux/device.h
|
||||
index 723cd54b94da..022cf258068b 100644
|
||||
--- a/include/linux/device.h
|
||||
+++ b/include/linux/device.h
|
||||
@@ -877,6 +877,8 @@ struct dev_links_info {
|
||||
* @offline: Set after successful invocation of bus type's .offline().
|
||||
* @of_node_reused: Set if the device-tree node is shared with an ancestor
|
||||
* device.
|
||||
+ * @skip_dma_configure: Set if driver core should not configure DMA for this
|
||||
+ * device during probe.
|
||||
*
|
||||
* At the lowest level, every device in a Linux system is represented by an
|
||||
* instance of struct device. The device structure contains the information
|
||||
@@ -965,6 +967,7 @@ struct device {
|
||||
bool offline_disabled:1;
|
||||
bool offline:1;
|
||||
bool of_node_reused:1;
|
||||
+ bool skip_dma_configure:1;
|
||||
};
|
||||
|
||||
static inline struct device *kobj_to_dev(struct kobject *kobj)
|
@ -1,89 +0,0 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# This script merges together the hierarchy of CONFIG_* files under generic
|
||||
# and debug to form the necessary $PACKAGE_NAME<version>-<arch>-<variant>.config
|
||||
# files for building RHEL kernels, based on the contents of a control file
|
||||
|
||||
PACKAGE_NAME=kernel # defines the package name used
|
||||
|
||||
set errexit
|
||||
set nounset
|
||||
|
||||
control_file="config_generation"
|
||||
|
||||
function combine_config_layer()
|
||||
{
|
||||
dir=$1
|
||||
file="config-$(echo $dir | sed -e 's|/|-|g')"
|
||||
|
||||
if [ $(ls $dir/ | grep -c "^CONFIG_") -eq 0 ]; then
|
||||
touch $file
|
||||
return
|
||||
fi
|
||||
|
||||
cat $dir/CONFIG_* > $file
|
||||
}
|
||||
|
||||
function merge_configs()
|
||||
{
|
||||
archvar=$1
|
||||
arch=$(echo "$archvar" | cut -f1 -d"-")
|
||||
configs=$2
|
||||
name=$PACKAGE_NAME-$archvar.config
|
||||
echo -n "Building $name ... "
|
||||
touch config-merging config-merged
|
||||
for config in $(echo $configs | sed -e 's/:/ /g')
|
||||
do
|
||||
perl merge.pl config-$config config-merging > config-merged
|
||||
if [ ! $? -eq 0 ]; then
|
||||
exit
|
||||
fi
|
||||
mv config-merged config-merging
|
||||
done
|
||||
if [ "x$arch" == "xaarch64" ]; then
|
||||
echo "# arm64" > $name
|
||||
elif [ "x$arch" == "xppc64" ]; then
|
||||
echo "# powerpc" > $name
|
||||
elif [ "x$arch" == "xppc64le" ]; then
|
||||
echo "# powerpc" > $name
|
||||
elif [ "x$arch" == "xs390x" ]; then
|
||||
echo "# s390" > $name
|
||||
elif [ "x$arch" == "xarmv7hl" ]; then
|
||||
echo "# arm" > $name
|
||||
elif [ "x$arch" == "xi686" ]; then
|
||||
echo "# i386" > $name
|
||||
else
|
||||
echo "# $arch" > $name
|
||||
fi
|
||||
sort config-merging >> $name
|
||||
rm -f config-merged config-merging
|
||||
echo "done"
|
||||
}
|
||||
|
||||
glist=$(find baseconfig -type d)
|
||||
dlist=$(find debugconfig -type d)
|
||||
|
||||
for d in $glist $dlist
|
||||
do
|
||||
combine_config_layer $d
|
||||
done
|
||||
|
||||
while read line
|
||||
do
|
||||
if [ $(echo "$line" | grep -c "^#") -ne 0 ]; then
|
||||
continue
|
||||
elif [ $(echo "$line" | grep -c "^$") -ne 0 ]; then
|
||||
continue
|
||||
else
|
||||
arch=$(echo "$line" | cut -f1 -d"=")
|
||||
configs=$(echo "$line" | cut -f2 -d"=")
|
||||
|
||||
if [ -n "$SUBARCH" -a "$SUBARCH" != "$arch" ]; then
|
||||
continue
|
||||
fi
|
||||
|
||||
merge_configs $arch $configs
|
||||
fi
|
||||
done < $control_file
|
||||
|
||||
rm -f config-*
|
1
build_configs.sh
Symbolic link
1
build_configs.sh
Symbolic link
@ -0,0 +1 @@
|
||||
configs/build_configs.sh
|
@ -1,36 +0,0 @@
|
||||
# config-variant=config:config:config
|
||||
# kernel.config files are build on the fly based on this config,
|
||||
# the first arg is arch and variant, the second is a hierarchy of
|
||||
# config options, lowest priority to highest
|
||||
|
||||
# x86_64
|
||||
x86_64=baseconfig:baseconfig-x86:baseconfig-x86-x86_64
|
||||
x86_64-debug=baseconfig:baseconfig-x86:baseconfig-x86-x86_64:debugconfig:debugconfig-x86:debugconfig-x86-x86_64
|
||||
|
||||
# i686
|
||||
i686=baseconfig:baseconfig-x86:baseconfig-x86-i686
|
||||
i686-debug=baseconfig:baseconfig-x86:baseconfig-x86-i686:debugconfig:debugconfig-x86
|
||||
i686-PAE=baseconfig:baseconfig-x86:baseconfig-x86-i686PAE
|
||||
i686-PAEdebug=baseconfig:baseconfig-x86:baseconfig-x86-i686PAE:debugconfig:debugconfig-x86
|
||||
|
||||
# ppc64
|
||||
ppc64=baseconfig:baseconfig-powerpc:baseconfig-powerpc-powerpc64
|
||||
ppc64-debug=baseconfig:baseconfig-powerpc:baseconfig-powerpc-powerpc64:debugconfig
|
||||
|
||||
# ppc64le
|
||||
ppc64le=baseconfig:baseconfig-powerpc:baseconfig-powerpc-powerpc64le
|
||||
ppc64le-debug=baseconfig:baseconfig-powerpc:baseconfig-powerpc-powerpc64le:debugconfig
|
||||
|
||||
# s390x
|
||||
s390x=baseconfig:baseconfig-s390x
|
||||
s390x-debug=baseconfig:baseconfig-s390x:debugconfig
|
||||
|
||||
# aarch64
|
||||
aarch64=baseconfig:baseconfig-arm:baseconfig-arm-aarch64
|
||||
aarch64-debug=baseconfig:baseconfig-arm:baseconfig-arm-aarch64:debugconfig:debugconfig-arm
|
||||
|
||||
# arm
|
||||
armv7hl=baseconfig:baseconfig-arm:baseconfig-arm-armv7:baseconfig-arm-armv7-armv7
|
||||
armv7hl-debug=baseconfig:baseconfig-arm:baseconfig-arm-armv7:baseconfig-arm-armv7-armv7:debugconfig:debugconfig-arm
|
||||
armv7hl-lpae=baseconfig:baseconfig-arm:baseconfig-arm-armv7:baseconfig-arm-armv7-lpae
|
||||
armv7hl-lpae-debug=baseconfig:baseconfig-arm:baseconfig-arm-armv7:baseconfig-arm-armv7-lpae:debugconfig:debugconfig-arm
|
1
config_generation
Symbolic link
1
config_generation
Symbolic link
@ -0,0 +1 @@
|
||||
configs/config_generation
|
1
configs/fedora/debug/CONFIG_ACPI_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_ACPI_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_ACPI_DEBUG=y
|
1
configs/fedora/debug/CONFIG_ARM64_PTDUMP
Normal file
1
configs/fedora/debug/CONFIG_ARM64_PTDUMP
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_ARM64_PTDUMP=y
|
1
configs/fedora/debug/CONFIG_ARM_PTDUMP
Normal file
1
configs/fedora/debug/CONFIG_ARM_PTDUMP
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_ARM_PTDUMP=y
|
1
configs/fedora/debug/CONFIG_ARM_PTDUMP_DEBUGFS
Normal file
1
configs/fedora/debug/CONFIG_ARM_PTDUMP_DEBUGFS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_ARM_PTDUMP_DEBUGFS=y
|
1
configs/fedora/debug/CONFIG_ATH_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_ATH_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_ATH_DEBUG=y
|
1
configs/fedora/debug/CONFIG_B43LEGACY_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_B43LEGACY_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_B43LEGACY_DEBUG=y
|
1
configs/fedora/debug/CONFIG_B43_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_B43_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_B43_DEBUG=y
|
@ -0,0 +1 @@
|
||||
CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION=y
|
1
configs/fedora/debug/CONFIG_BPF_KPROBE_OVERRIDE
Normal file
1
configs/fedora/debug/CONFIG_BPF_KPROBE_OVERRIDE
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_BPF_KPROBE_OVERRIDE=y
|
1
configs/fedora/debug/CONFIG_CAN_DEBUG_DEVICES
Normal file
1
configs/fedora/debug/CONFIG_CAN_DEBUG_DEVICES
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_CAN_DEBUG_DEVICES=y
|
1
configs/fedora/debug/CONFIG_CARL9170_DEBUGFS
Normal file
1
configs/fedora/debug/CONFIG_CARL9170_DEBUGFS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_CARL9170_DEBUGFS=y
|
1
configs/fedora/debug/CONFIG_CEPH_LIB_PRETTYDEBUG
Normal file
1
configs/fedora/debug/CONFIG_CEPH_LIB_PRETTYDEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_CEPH_LIB_PRETTYDEBUG=y
|
1
configs/fedora/debug/CONFIG_CPU_NOTIFIER_ERROR_INJECT
Normal file
1
configs/fedora/debug/CONFIG_CPU_NOTIFIER_ERROR_INJECT
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
|
1
configs/fedora/debug/CONFIG_DEBUG_ATOMIC_SLEEP
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_ATOMIC_SLEEP
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_ATOMIC_SLEEP=y
|
1
configs/fedora/debug/CONFIG_DEBUG_BLK_CGROUP
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_BLK_CGROUP
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_BLK_CGROUP=y
|
1
configs/fedora/debug/CONFIG_DEBUG_CREDENTIALS
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_CREDENTIALS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_CREDENTIALS=y
|
1
configs/fedora/debug/CONFIG_DEBUG_FORCE_WEAK_PER_CPU
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_FORCE_WEAK_PER_CPU
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
|
1
configs/fedora/debug/CONFIG_DEBUG_KMEMLEAK
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_KMEMLEAK
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_KMEMLEAK=y
|
1
configs/fedora/debug/CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y
|
1
configs/fedora/debug/CONFIG_DEBUG_KMEMLEAK_EARLY
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_KMEMLEAK_EARLY
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=4096
|
1
configs/fedora/debug/CONFIG_DEBUG_LOCK_ALLOC
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_LOCK_ALLOC
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_LOCK_ALLOC=y
|
1
configs/fedora/debug/CONFIG_DEBUG_MUTEXES
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_MUTEXES
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_MUTEXES=y
|
1
configs/fedora/debug/CONFIG_DEBUG_NOTIFIERS
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_NOTIFIERS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_NOTIFIERS=y
|
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_OBJECTS=y
|
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_FREE
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_FREE
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_OBJECTS_FREE=y
|
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
|
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_RCU_HEAD
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_RCU_HEAD
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
|
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_TIMERS
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_TIMERS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_OBJECTS_TIMERS=y
|
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_WORK
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_OBJECTS_WORK
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_OBJECTS_WORK=y
|
1
configs/fedora/debug/CONFIG_DEBUG_PAGEALLOC
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_PAGEALLOC
Normal file
@ -0,0 +1 @@
|
||||
# CONFIG_DEBUG_PAGEALLOC is not set
|
1
configs/fedora/debug/CONFIG_DEBUG_PERF_USE_VMALLOC
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_PERF_USE_VMALLOC
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_PERF_USE_VMALLOC=y
|
1
configs/fedora/debug/CONFIG_DEBUG_PER_CPU_MAPS
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_PER_CPU_MAPS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_PER_CPU_MAPS=y
|
1
configs/fedora/debug/CONFIG_DEBUG_PI_LIST
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_PI_LIST
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_PI_LIST=y
|
1
configs/fedora/debug/CONFIG_DEBUG_REFCOUNT
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_REFCOUNT
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_REFCOUNT=y
|
1
configs/fedora/debug/CONFIG_DEBUG_RT_MUTEXES
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_RT_MUTEXES
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_RT_MUTEXES=y
|
1
configs/fedora/debug/CONFIG_DEBUG_RWSEMS
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_RWSEMS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_RWSEMS=y
|
1
configs/fedora/debug/CONFIG_DEBUG_SG
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_SG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_SG=y
|
1
configs/fedora/debug/CONFIG_DEBUG_SLAB
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_SLAB
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_SLAB=y
|
1
configs/fedora/debug/CONFIG_DEBUG_SPINLOCK
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_SPINLOCK
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_SPINLOCK=y
|
1
configs/fedora/debug/CONFIG_DEBUG_STACK_USAGE
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_STACK_USAGE
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_STACK_USAGE=y
|
1
configs/fedora/debug/CONFIG_DEBUG_VM
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_VM
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_VM=y
|
1
configs/fedora/debug/CONFIG_DEBUG_VM_PGFLAGS
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_VM_PGFLAGS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_VM_PGFLAGS=y
|
1
configs/fedora/debug/CONFIG_DEBUG_WW_MUTEX_SLOWPATH
Normal file
1
configs/fedora/debug/CONFIG_DEBUG_WW_MUTEX_SLOWPATH
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
|
1
configs/fedora/debug/CONFIG_DETECT_HUNG_TASK
Normal file
1
configs/fedora/debug/CONFIG_DETECT_HUNG_TASK
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DETECT_HUNG_TASK=y
|
1
configs/fedora/debug/CONFIG_DMADEVICES_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_DMADEVICES_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DMADEVICES_DEBUG=y
|
1
configs/fedora/debug/CONFIG_DMADEVICES_VDEBUG
Normal file
1
configs/fedora/debug/CONFIG_DMADEVICES_VDEBUG
Normal file
@ -0,0 +1 @@
|
||||
# CONFIG_DMADEVICES_VDEBUG is not set
|
1
configs/fedora/debug/CONFIG_DMA_API_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_DMA_API_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DMA_API_DEBUG=y
|
1
configs/fedora/debug/CONFIG_DRBD_FAULT_INJECTION
Normal file
1
configs/fedora/debug/CONFIG_DRBD_FAULT_INJECTION
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_DRBD_FAULT_INJECTION=y
|
1
configs/fedora/debug/CONFIG_EFI_PGT_DUMP
Normal file
1
configs/fedora/debug/CONFIG_EFI_PGT_DUMP
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_EFI_PGT_DUMP=y
|
1
configs/fedora/debug/CONFIG_EXT4_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_EXT4_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_EXT4_DEBUG=y
|
1
configs/fedora/debug/CONFIG_FAILSLAB
Normal file
1
configs/fedora/debug/CONFIG_FAILSLAB
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAILSLAB=y
|
1
configs/fedora/debug/CONFIG_FAIL_FUNCTION
Normal file
1
configs/fedora/debug/CONFIG_FAIL_FUNCTION
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAIL_FUNCTION=y
|
1
configs/fedora/debug/CONFIG_FAIL_IO_TIMEOUT
Normal file
1
configs/fedora/debug/CONFIG_FAIL_IO_TIMEOUT
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAIL_IO_TIMEOUT=y
|
1
configs/fedora/debug/CONFIG_FAIL_MAKE_REQUEST
Normal file
1
configs/fedora/debug/CONFIG_FAIL_MAKE_REQUEST
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAIL_MAKE_REQUEST=y
|
1
configs/fedora/debug/CONFIG_FAIL_MMC_REQUEST
Normal file
1
configs/fedora/debug/CONFIG_FAIL_MMC_REQUEST
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAIL_MMC_REQUEST=y
|
1
configs/fedora/debug/CONFIG_FAIL_PAGE_ALLOC
Normal file
1
configs/fedora/debug/CONFIG_FAIL_PAGE_ALLOC
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAIL_PAGE_ALLOC=y
|
1
configs/fedora/debug/CONFIG_FAULT_INJECTION
Normal file
1
configs/fedora/debug/CONFIG_FAULT_INJECTION
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAULT_INJECTION=y
|
1
configs/fedora/debug/CONFIG_FAULT_INJECTION_DEBUG_FS
Normal file
1
configs/fedora/debug/CONFIG_FAULT_INJECTION_DEBUG_FS
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_FAULT_INJECTION_DEBUG_FS=y
|
@ -0,0 +1 @@
|
||||
CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
|
1
configs/fedora/debug/CONFIG_IWLWIFI_DEVICE_TRACING
Normal file
1
configs/fedora/debug/CONFIG_IWLWIFI_DEVICE_TRACING
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_IWLWIFI_DEVICE_TRACING=y
|
1
configs/fedora/debug/CONFIG_JBD2_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_JBD2_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_JBD2_DEBUG=y
|
1
configs/fedora/debug/CONFIG_KDB_DEFAULT_ENABLE
Normal file
1
configs/fedora/debug/CONFIG_KDB_DEFAULT_ENABLE
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_KDB_DEFAULT_ENABLE=0x0
|
1
configs/fedora/debug/CONFIG_KDB_KEYBOARD
Normal file
1
configs/fedora/debug/CONFIG_KDB_KEYBOARD
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_KDB_KEYBOARD=y
|
1
configs/fedora/debug/CONFIG_KGDB_GDB
Normal file
1
configs/fedora/debug/CONFIG_KGDB_GDB
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_KGDB_KDB=y
|
1
configs/fedora/debug/CONFIG_LOCK_STAT
Normal file
1
configs/fedora/debug/CONFIG_LOCK_STAT
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_LOCK_STAT=y
|
1
configs/fedora/debug/CONFIG_LOCK_TORTURE_TEST
Normal file
1
configs/fedora/debug/CONFIG_LOCK_TORTURE_TEST
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_LOCK_TORTURE_TEST=m
|
1
configs/fedora/debug/CONFIG_MAXSMP
Normal file
1
configs/fedora/debug/CONFIG_MAXSMP
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_MAXSMP=y
|
1
configs/fedora/debug/CONFIG_MMIOTRACE
Normal file
1
configs/fedora/debug/CONFIG_MMIOTRACE
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_MMIOTRACE=y
|
1
configs/fedora/debug/CONFIG_MODULE_FORCE_UNLOAD
Normal file
1
configs/fedora/debug/CONFIG_MODULE_FORCE_UNLOAD
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_MODULE_FORCE_UNLOAD=y
|
1
configs/fedora/debug/CONFIG_NFSD_FAULT_INJECTION
Normal file
1
configs/fedora/debug/CONFIG_NFSD_FAULT_INJECTION
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_NFSD_FAULT_INJECTION=y
|
1
configs/fedora/debug/CONFIG_NOUVEAU_DEBUG_MMU
Normal file
1
configs/fedora/debug/CONFIG_NOUVEAU_DEBUG_MMU
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_NOUVEAU_DEBUG_MMU=y
|
1
configs/fedora/debug/CONFIG_PM_ADVANCED_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_PM_ADVANCED_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_PM_ADVANCED_DEBUG=y
|
1
configs/fedora/debug/CONFIG_PM_TEST_SUSPEND
Normal file
1
configs/fedora/debug/CONFIG_PM_TEST_SUSPEND
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_PM_TEST_SUSPEND=y
|
1
configs/fedora/debug/CONFIG_PROVE_LOCKING
Normal file
1
configs/fedora/debug/CONFIG_PROVE_LOCKING
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_PROVE_LOCKING=y
|
1
configs/fedora/debug/CONFIG_PROVE_RCU
Normal file
1
configs/fedora/debug/CONFIG_PROVE_RCU
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_PROVE_RCU=y
|
1
configs/fedora/debug/CONFIG_QUOTA_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_QUOTA_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_QUOTA_DEBUG=y
|
1
configs/fedora/debug/CONFIG_REFCOUNT_FULL
Normal file
1
configs/fedora/debug/CONFIG_REFCOUNT_FULL
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_REFCOUNT_FULL=y
|
1
configs/fedora/debug/CONFIG_SND_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_SND_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_SND_DEBUG=y
|
1
configs/fedora/debug/CONFIG_SND_PCM_XRUN_DEBUG
Normal file
1
configs/fedora/debug/CONFIG_SND_PCM_XRUN_DEBUG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_SND_PCM_XRUN_DEBUG=y
|
1
configs/fedora/debug/CONFIG_SND_VERBOSE_PRINTK
Normal file
1
configs/fedora/debug/CONFIG_SND_VERBOSE_PRINTK
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_SND_VERBOSE_PRINTK=y
|
1
configs/fedora/debug/CONFIG_TEST_LIST_SORT
Normal file
1
configs/fedora/debug/CONFIG_TEST_LIST_SORT
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_TEST_LIST_SORT=y
|
1
configs/fedora/debug/CONFIG_WQ_WATCHDOG
Normal file
1
configs/fedora/debug/CONFIG_WQ_WATCHDOG
Normal file
@ -0,0 +1 @@
|
||||
CONFIG_WQ_WATCHDOG=y
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user