vmwgfx: Add dmabuf helper functions for pinning

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index 5d665ce8cbe..98a5d7e9054 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -42,6 +42,10 @@ static uint32_t sys_placement_flags = TTM_PL_FLAG_SYSTEM |
 static uint32_t gmr_placement_flags = VMW_PL_FLAG_GMR |
         TTM_PL_FLAG_CACHED;
 
+static uint32_t gmr_ne_placement_flags = VMW_PL_FLAG_GMR |
+        TTM_PL_FLAG_CACHED |
+        TTM_PL_FLAG_NO_EVICT;
+
 struct ttm_placement vmw_vram_placement = {
         .fpfn = 0,
         .lpfn = 0,
@@ -65,6 +69,20 @@ struct ttm_placement vmw_vram_gmr_placement = {
         .busy_placement = &gmr_placement_flags
 };
 
+static uint32_t vram_gmr_ne_placement_flags[] = {
+        TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT,
+        VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT
+};
+
+struct ttm_placement vmw_vram_gmr_ne_placement = {
+        .fpfn = 0,
+        .lpfn = 0,
+        .num_placement = 2,
+        .placement = vram_gmr_ne_placement_flags,
+        .num_busy_placement = 1,
+        .busy_placement = &gmr_ne_placement_flags
+};
+
 struct ttm_placement vmw_vram_sys_placement = {
         .fpfn = 0,
         .lpfn = 0,
@@ -92,6 +110,21 @@ struct ttm_placement vmw_sys_placement = {
         .busy_placement = &sys_placement_flags
 };
 
+static uint32_t evictable_placement_flags[] = {
+        TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED,
+        TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED,
+        VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED
+};
+
+struct ttm_placement vmw_evictable_placement = {
+        .fpfn = 0,
+        .lpfn = 0,
+        .num_placement = 3,
+        .placement = evictable_placement_flags,
+        .num_busy_placement = 1,
+        .busy_placement = &sys_placement_flags
+};
+
 struct vmw_ttm_backend {
         struct ttm_backend backend;
         struct page **pages;