drm/vmwgfx: Add command buffer support v3
Add command buffer support.
Currently we don't implement preemption or fancy error handling.
Tested with a couple of mesa-demos, compiz/unity and viewperf maya-03.
v2:
- Synchronize with pending work at command buffer manager takedown.
- Add an interface to flush the current command buffer for latency-critical
command batches and apply it to framebuffer dirtying.
v3:
- Minor fixes of definitions and typos to address reviews.
- Removed new or moved branch predictor hints.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index cff2bf9..3b349fd 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -72,6 +72,12 @@
.flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED
};
+static struct ttm_place mob_ne_placement_flags = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT
+};
+
struct ttm_placement vmw_vram_placement = {
.num_placement = 1,
.placement = &vram_placement_flags,
@@ -200,6 +206,13 @@
.busy_placement = &mob_placement_flags
};
+struct ttm_placement vmw_mob_ne_placement = {
+ .num_placement = 1,
+ .num_busy_placement = 1,
+ .placement = &mob_ne_placement_flags,
+ .busy_placement = &mob_ne_placement_flags
+};
+
struct vmw_ttm_tt {
struct ttm_dma_tt dma_ttm;
struct vmw_private *dev_priv;