grub2/0122-ieee1275-decode-unit-command-for-4-addr-cell-devs.patch
Peter Jones 752ceb1640 Rebased to newer upstream for fedora-29
Signed-off-by: Peter Jones <pjones@redhat.com>
2018-07-10 15:12:02 -04:00

95 lines
3.5 KiB
Diff

From 6003eb2feabdae1a79b496c3d010b6d1363f1fac Mon Sep 17 00:00:00 2001
From: Eric Snowberg <eric.snowberg@oracle.com>
Date: Mon, 26 Feb 2018 17:34:14 -0800
Subject: [PATCH] ieee1275: decode-unit command for 4 addr cell devs
decode-unit ( addr len -- phys.lo ... phys.hi )
Convert text unit-string to physical address.
Convert unit-string, the text string representation, to phys.lo ... phys.hi,
the numerical representation of a physical address within the address space
defined by this device node. The number of cells in the list
phys.lo ... phys.hi is determined by the value of the #address-cells
property of this node.
This function is for devices with #address-cells == 4
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/kern/ieee1275/ieee1275.c | 41 ++++++++++++++++++++++++++++++++++++++
include/grub/ieee1275/ieee1275.h | 7 ++++++-
2 files changed, 47 insertions(+), 1 deletion(-)
diff --git a/grub-core/kern/ieee1275/ieee1275.c b/grub-core/kern/ieee1275/ieee1275.c
index 98217029f45..b0ac6f9f9a8 100644
--- a/grub-core/kern/ieee1275/ieee1275.c
+++ b/grub-core/kern/ieee1275/ieee1275.c
@@ -482,6 +482,47 @@ grub_ieee1275_close (grub_ieee1275_ihandle_t ihandle)
return 0;
}
+int
+grub_ieee1275_decode_unit4 (grub_ieee1275_ihandle_t ihandle,
+ void *addr, grub_size_t size,
+ grub_uint32_t *phy_lo, grub_uint32_t *phy_hi,
+ grub_uint32_t *lun_lo, grub_uint32_t *lun_hi)
+{
+ struct decode_args
+ {
+ struct grub_ieee1275_common_hdr common;
+ grub_ieee1275_cell_t method;
+ grub_ieee1275_cell_t ihandle;
+ grub_ieee1275_cell_t size;
+ grub_ieee1275_cell_t addr;
+ grub_ieee1275_cell_t catch_result;
+ grub_ieee1275_cell_t tgt_h;
+ grub_ieee1275_cell_t tgt_l;
+ grub_ieee1275_cell_t lun_h;
+ grub_ieee1275_cell_t lun_l;
+ }
+ args;
+
+ INIT_IEEE1275_COMMON (&args.common, "call-method", 4, 5);
+ args.method = (grub_ieee1275_cell_t) "decode-unit";
+ args.ihandle = ihandle;
+ args.size = size;
+ args.addr = (grub_ieee1275_cell_t) addr;
+ args.catch_result = 1;
+
+ if ((IEEE1275_CALL_ENTRY_FN (&args) == -1) || (args.catch_result))
+ {
+ grub_error (GRUB_ERR_OUT_OF_RANGE, "decode-unit failed\n");
+ return -1;
+ }
+
+ *phy_lo = args.tgt_l;
+ *phy_hi = args.tgt_h;
+ *lun_lo = args.lun_l;
+ *lun_hi = args.lun_h;
+ return 0;
+}
+
int
grub_ieee1275_claim (grub_addr_t addr, grub_size_t size, unsigned int align,
grub_addr_t *result)
diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
index 8e425130327..534406458b2 100644
--- a/include/grub/ieee1275/ieee1275.h
+++ b/include/grub/ieee1275/ieee1275.h
@@ -210,7 +210,12 @@ int EXPORT_FUNC(grub_ieee1275_set_property) (grub_ieee1275_phandle_t phandle,
int EXPORT_FUNC(grub_ieee1275_set_color) (grub_ieee1275_ihandle_t ihandle,
int index, int r, int g, int b);
int EXPORT_FUNC(grub_ieee1275_milliseconds) (grub_uint32_t *msecs);
-
+int EXPORT_FUNC(grub_ieee1275_decode_unit4) (grub_ieee1275_ihandle_t ihandle,
+ void *addr, grub_size_t size,
+ grub_uint32_t *phy_lo,
+ grub_uint32_t *phy_hi,
+ grub_uint32_t *lun_lo,
+ grub_uint32_t *lun_hi);
grub_err_t EXPORT_FUNC(grub_claimmap) (grub_addr_t addr, grub_size_t size);