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authorThomas Hellstrom <thellstrom@vmware.com>2011-10-04 20:13:33 +0200
committerDave Airlie <airlied@redhat.com>2011-10-05 10:17:31 +0100
commit5bb39e818169783ee17ddbbefbd7bd16a4383fec (patch)
treea4af9f982e0c75e19b7e31bfdbaebc30e25b0bdc /drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
parent90ff18bc3a1ff56e3948ccf7ae4031b8e9662981 (diff)
downloadlwn-5bb39e818169783ee17ddbbefbd7bd16a4383fec.tar.gz
lwn-5bb39e818169783ee17ddbbefbd7bd16a4383fec.zip
vmwgfx: Handle device surface memory limit
Make surfaces swappable. Make sure we honor the maximum amount of surface memory the device accepts. This is done by potentially reading back surface contents not used by the current command submission and storing it locally in buffer objects. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index 98a5d7e90546..5a72ed908232 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -60,6 +60,11 @@ static uint32_t vram_gmr_placement_flags[] = {
VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED
};
+static uint32_t gmr_vram_placement_flags[] = {
+ VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED,
+ TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED
+};
+
struct ttm_placement vmw_vram_gmr_placement = {
.fpfn = 0,
.lpfn = 0,
@@ -125,6 +130,15 @@ struct ttm_placement vmw_evictable_placement = {
.busy_placement = &sys_placement_flags
};
+struct ttm_placement vmw_srf_placement = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .num_placement = 1,
+ .num_busy_placement = 2,
+ .placement = &gmr_placement_flags,
+ .busy_placement = gmr_vram_placement_flags
+};
+
struct vmw_ttm_backend {
struct ttm_backend backend;
struct page **pages;