>From fed782e33714e6a44bca9a8c3ab8b017393e8089 Mon Sep 17 00:00:00 2001 From: Alon Levy Date: Sun, 5 Jun 2011 11:01:48 +0300 Subject: [PATCH 21/28] qxl: add QXL_IO_FLUSH_{SURFACES,RELEASE} for guest S3&S4 support Add two new IOs. QXL_IO_FLUSH_SURFACES - equivalent to update area for all surfaces, used to reduce vmexits from NumSurfaces to 1 on guest S3, S4 and resolution change (windows driver implementation is such that this is done on each of those occasions). QXL_IO_FLUSH_RELEASE - used to ensure anything on last_release is put on the release ring for the client to free. Signed-off-by: Yonit Halperin Signed-off-by: Alon Levy --- hw/qxl.c | 30 ++++++++++++++++++++++++++++++ 1 files changed, 30 insertions(+), 0 deletions(-) diff --git a/hw/qxl.c b/hw/qxl.c index d3109e4..847a9b8 100644 --- a/hw/qxl.c +++ b/hw/qxl.c @@ -185,6 +185,13 @@ static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id, } } +#if SPICE_INTERFACE_QXL_MINOR >= 1 +static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl) +{ + spice_qxl_flush_surfaces_async(&qxl->ssd.qxl, 0); +} +#endif + void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext, uint32_t count) { @@ -1184,6 +1191,8 @@ static void ioport_write(void *opaque, uint32_t addr, uint32_t val) goto async_common; case QXL_IO_DESTROY_ALL_SURFACES_ASYNC: io_port = QXL_IO_DESTROY_ALL_SURFACES; + goto async_common; + case QXL_IO_FLUSH_SURFACES_ASYNC: async_common: async = QXL_ASYNC; qemu_mutex_lock(&d->async_lock); @@ -1296,6 +1305,27 @@ async_common: } qxl_spice_destroy_surface_wait(d, val, async); break; +#if SPICE_INTERFACE_QXL_MINOR >= 1 + case QXL_IO_FLUSH_RELEASE: { + QXLReleaseRing *ring = &d->ram->release_ring; + if (ring->prod - ring->cons + 1 == ring->num_items) { + fprintf(stderr, + "ERROR: no flush, full release ring [p%d,%dc]\n", + ring->prod, ring->cons); + } + qxl_push_free_res(d, 1 /* flush */); + dprint(d, 1, "QXL_IO_FLUSH_RELEASE exit (%s, s#=%d, res#=%d,%p)\n", + qxl_mode_to_string(d->mode), d->guest_surfaces.count, + d->num_free_res, d->last_release); + break; + } + case QXL_IO_FLUSH_SURFACES_ASYNC: + dprint(d, 1, "QXL_IO_FLUSH_SURFACES_ASYNC (%d) (%s, s#=%d, res#=%d)\n", + val, qxl_mode_to_string(d->mode), d->guest_surfaces.count, + d->num_free_res); + qxl_spice_flush_surfaces_async(d); + break; +#endif case QXL_IO_DESTROY_ALL_SURFACES: d->mode = QXL_MODE_UNDEFINED; qxl_spice_destroy_surfaces(d, async); -- 1.7.5.1