[PATCH 5/5] drm/ttm: replace busy placement with flags v2
Christian König
ckoenig.leichtzumerken at gmail.com
Tue Jan 24 12:57:26 UTC 2023
Instead of a list of separate busy placement add flags which indicate
that a placement should only be used when there is room or if we need to
evict.
v2: add missing TTM_PL_FLAG_IDLE for i915
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 6 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 11 +-
drivers/gpu/drm/drm_gem_vram_helper.c | 2 -
drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 37 +++----
drivers/gpu/drm/nouveau/nouveau_bo.c | 59 ++++------
drivers/gpu/drm/nouveau/nouveau_bo.h | 1 -
drivers/gpu/drm/qxl/qxl_object.c | 2 -
drivers/gpu/drm/qxl/qxl_ttm.c | 2 -
drivers/gpu/drm/radeon/radeon_object.c | 2 -
drivers/gpu/drm/radeon/radeon_ttm.c | 8 +-
drivers/gpu/drm/radeon/radeon_uvd.c | 1 -
drivers/gpu/drm/ttm/ttm_bo.c | 21 ++--
drivers/gpu/drm/ttm/ttm_resource.c | 73 +++----------
drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 2 -
drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 121 ++++++++++-----------
include/drm/ttm/ttm_placement.h | 10 +-
include/drm/ttm/ttm_resource.h | 8 +-
17 files changed, 135 insertions(+), 231 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 25a68d8888e0..9c594607109c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -201,9 +201,6 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
placement->num_placement = c;
placement->placement = places;
-
- placement->num_busy_placement = c;
- placement->busy_placement = places;
}
/**
@@ -1369,8 +1366,7 @@ vm_fault_t amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
AMDGPU_GEM_DOMAIN_GTT);
/* Avoid costly evictions; only set GTT as a busy placement */
- abo->placement.num_busy_placement = 1;
- abo->placement.busy_placement = &abo->placements[1];
+ abo->placements[0].flags |= TTM_PL_FLAG_IDLE;
r = ttm_bo_validate(bo, &abo->placement, &ctx);
if (unlikely(r == -EBUSY || r == -ERESTARTSYS))
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 2cd081cbf706..e7d6b7d1d393 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -104,23 +104,19 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
/* Don't handle scatter gather BOs */
if (bo->type == ttm_bo_type_sg) {
placement->num_placement = 0;
- placement->num_busy_placement = 0;
return;
}
/* Object isn't an AMDGPU object so ignore */
if (!amdgpu_bo_is_amdgpu_bo(bo)) {
placement->placement = &placements;
- placement->busy_placement = &placements;
placement->num_placement = 1;
- placement->num_busy_placement = 1;
return;
}
abo = ttm_to_amdgpu_bo(bo);
if (abo->flags & AMDGPU_GEM_CREATE_DISCARDABLE) {
placement->num_placement = 0;
- placement->num_busy_placement = 0;
return;
}
@@ -129,13 +125,13 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
case AMDGPU_PL_GWS:
case AMDGPU_PL_OA:
placement->num_placement = 0;
- placement->num_busy_placement = 0;
return;
case TTM_PL_VRAM:
if (!adev->mman.buffer_funcs_enabled) {
/* Move to system memory */
amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_CPU);
+
} else if (!amdgpu_gmc_vram_full_visible(&adev->gmc) &&
!(abo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) &&
amdgpu_bo_in_cpu_visible_vram(abo)) {
@@ -150,8 +146,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
AMDGPU_GEM_DOMAIN_CPU);
abo->placements[0].fpfn = adev->gmc.visible_vram_size >> PAGE_SHIFT;
abo->placements[0].lpfn = 0;
- abo->placement.busy_placement = &abo->placements[1];
- abo->placement.num_busy_placement = 1;
+ abo->placements[0].flags |= TTM_PL_FLAG_IDLE;
} else {
/* Move to GTT memory */
amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT |
@@ -930,8 +925,6 @@ int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo)
/* allocate GART space */
placement.num_placement = 1;
placement.placement = &placements;
- placement.num_busy_placement = 1;
- placement.busy_placement = &placements;
placements.fpfn = 0;
placements.lpfn = adev->gmc.gart_size >> PAGE_SHIFT;
placements.mem_type = TTM_PL_TT;
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index d40b3edb52d0..f46792b757f9 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -147,7 +147,6 @@ static void drm_gem_vram_placement(struct drm_gem_vram_object *gbo,
invariant_flags = TTM_PL_FLAG_TOPDOWN;
gbo->placement.placement = gbo->placements;
- gbo->placement.busy_placement = gbo->placements;
if (pl_flag & DRM_GEM_VRAM_PL_FLAG_VRAM) {
gbo->placements[c].mem_type = TTM_PL_VRAM;
@@ -160,7 +159,6 @@ static void drm_gem_vram_placement(struct drm_gem_vram_object *gbo,
}
gbo->placement.num_placement = c;
- gbo->placement.num_busy_placement = c;
for (i = 0; i < c; ++i) {
gbo->placements[i].fpfn = 0;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 7420276827a5..7e5adc209c19 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -65,8 +65,6 @@ static const struct ttm_place sys_placement_flags = {
static struct ttm_placement i915_sys_placement = {
.num_placement = 1,
.placement = &sys_placement_flags,
- .num_busy_placement = 1,
- .busy_placement = &sys_placement_flags,
};
/**
@@ -157,32 +155,28 @@ i915_ttm_place_from_region(const struct intel_memory_region *mr,
static void
i915_ttm_placement_from_obj(const struct drm_i915_gem_object *obj,
- struct ttm_place *requested,
- struct ttm_place *busy,
+ struct ttm_place *places,
struct ttm_placement *placement)
{
unsigned int num_allowed = obj->mm.n_placements;
unsigned int flags = obj->flags;
unsigned int i;
- placement->num_placement = 1;
+ places[0].flags |= TTM_PL_FLAG_IDLE;
i915_ttm_place_from_region(num_allowed ? obj->mm.placements[0] :
- obj->mm.region, requested, obj->bo_offset,
+ obj->mm.region, &places[0], obj->bo_offset,
obj->base.size, flags);
/* Cache this on object? */
- placement->num_busy_placement = num_allowed;
- for (i = 0; i < placement->num_busy_placement; ++i)
- i915_ttm_place_from_region(obj->mm.placements[i], busy + i,
- obj->bo_offset, obj->base.size, flags);
-
- if (num_allowed == 0) {
- *busy = *requested;
- placement->num_busy_placement = 1;
+ for (i = 0; i < num_allowed; ++i) {
+ i915_ttm_place_from_region(obj->mm.placements[i],
+ &places[i + 1], obj->bo_offset,
+ obj->base.size, flags);
+ places[i + 1].flags |= TTM_PL_FLAG_BUSY;
}
- placement->placement = requested;
- placement->busy_placement = busy;
+ placement->num_placement = num_allowed + 1;
+ placement->placement = places;
}
static int i915_ttm_tt_shmem_populate(struct ttm_device *bdev,
@@ -783,7 +777,8 @@ static int __i915_ttm_get_pages(struct drm_i915_gem_object *obj,
int ret;
/* First try only the requested placement. No eviction. */
- real_num_busy = fetch_and_zero(&placement->num_busy_placement);
+ real_num_busy = placement->num_placement;
+ placement->num_placement = 1;
ret = ttm_bo_validate(bo, placement, &ctx);
if (ret) {
ret = i915_ttm_err_to_gem(ret);
@@ -799,7 +794,7 @@ static int __i915_ttm_get_pages(struct drm_i915_gem_object *obj,
* If the initial attempt fails, allow all accepted placements,
* evicting if necessary.
*/
- placement->num_busy_placement = real_num_busy;
+ placement->num_placement = real_num_busy;
ret = ttm_bo_validate(bo, placement, &ctx);
if (ret)
return i915_ttm_err_to_gem(ret);
@@ -833,7 +828,7 @@ static int __i915_ttm_get_pages(struct drm_i915_gem_object *obj,
static int i915_ttm_get_pages(struct drm_i915_gem_object *obj)
{
- struct ttm_place requested, busy[I915_TTM_MAX_PLACEMENTS];
+ struct ttm_place places[I915_TTM_MAX_PLACEMENTS + 1];
struct ttm_placement placement;
/* restricted by sg_alloc_table */
@@ -843,7 +838,7 @@ static int i915_ttm_get_pages(struct drm_i915_gem_object *obj)
GEM_BUG_ON(obj->mm.n_placements > I915_TTM_MAX_PLACEMENTS);
/* Move to the requested placement. */
- i915_ttm_placement_from_obj(obj, &requested, busy, &placement);
+ i915_ttm_placement_from_obj(obj, places, &placement);
return __i915_ttm_get_pages(obj, &placement);
}
@@ -873,9 +868,7 @@ static int __i915_ttm_migrate(struct drm_i915_gem_object *obj,
i915_ttm_place_from_region(mr, &requested, obj->bo_offset,
obj->base.size, flags);
placement.num_placement = 1;
- placement.num_busy_placement = 1;
placement.placement = &requested;
- placement.busy_placement = &requested;
ret = __i915_ttm_get_pages(obj, &placement);
if (ret)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index c2ec91cc845d..0ab24ca5f419 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -347,27 +347,6 @@ nouveau_bo_new(struct nouveau_cli *cli, u64 size, int align,
return 0;
}
-static void
-set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t domain)
-{
- *n = 0;
-
- if (domain & NOUVEAU_GEM_DOMAIN_VRAM) {
- pl[*n].mem_type = TTM_PL_VRAM;
- pl[*n].flags = 0;
- (*n)++;
- }
- if (domain & NOUVEAU_GEM_DOMAIN_GART) {
- pl[*n].mem_type = TTM_PL_TT;
- pl[*n].flags = 0;
- (*n)++;
- }
- if (domain & NOUVEAU_GEM_DOMAIN_CPU) {
- pl[*n].mem_type = TTM_PL_SYSTEM;
- pl[(*n)++].flags = 0;
- }
-}
-
static void
set_placement_range(struct nouveau_bo *nvbo, uint32_t domain)
{
@@ -395,10 +374,6 @@ set_placement_range(struct nouveau_bo *nvbo, uint32_t domain)
nvbo->placements[i].fpfn = fpfn;
nvbo->placements[i].lpfn = lpfn;
}
- for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
- nvbo->busy_placements[i].fpfn = fpfn;
- nvbo->busy_placements[i].lpfn = lpfn;
- }
}
}
@@ -406,15 +381,32 @@ void
nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t domain,
uint32_t busy)
{
- struct ttm_placement *pl = &nvbo->placement;
+ struct ttm_place *pl = nvbo->placements;
+ unsigned *n = &nvbo->placement.num_placement;
- pl->placement = nvbo->placements;
- set_placement_list(nvbo->placements, &pl->num_placement, domain);
+ domain |= busy;
- pl->busy_placement = nvbo->busy_placements;
- set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
- domain | busy);
+ *n = 0;
+ if (domain & NOUVEAU_GEM_DOMAIN_VRAM) {
+ pl[*n].mem_type = TTM_PL_VRAM;
+ pl[*n].flags = busy & NOUVEAU_GEM_DOMAIN_VRAM ?
+ TTM_PL_FLAG_BUSY : 0;
+ (*n)++;
+ }
+ if (domain & NOUVEAU_GEM_DOMAIN_GART) {
+ pl[*n].mem_type = TTM_PL_TT;
+ pl[*n].flags = busy & NOUVEAU_GEM_DOMAIN_GART ?
+ TTM_PL_FLAG_BUSY : 0;
+ (*n)++;
+ }
+ if (domain & NOUVEAU_GEM_DOMAIN_CPU) {
+ pl[*n].mem_type = TTM_PL_SYSTEM;
+ pl[*n].flags = busy & NOUVEAU_GEM_DOMAIN_CPU ?
+ TTM_PL_FLAG_BUSY : 0;
+ (*n)++;
+ }
+ nvbo->placement.placement = nvbo->placements;
set_placement_range(nvbo, domain);
}
@@ -1249,11 +1241,6 @@ vm_fault_t nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
nvbo->placements[i].lpfn = mappable;
}
- for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
- nvbo->busy_placements[i].fpfn = 0;
- nvbo->busy_placements[i].lpfn = mappable;
- }
-
nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, 0);
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.h b/drivers/gpu/drm/nouveau/nouveau_bo.h
index 774dd93ca76b..4031b5a223a1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.h
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.h
@@ -15,7 +15,6 @@ struct nouveau_bo {
struct ttm_placement placement;
u32 valid_domains;
struct ttm_place placements[3];
- struct ttm_place busy_placements[3];
bool force_coherent;
struct ttm_bo_kmap_obj kmap;
struct list_head head;
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index 06a58dad5f5c..1e46b0a6e478 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -66,7 +66,6 @@ void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain)
pflag |= TTM_PL_FLAG_TOPDOWN;
qbo->placement.placement = qbo->placements;
- qbo->placement.busy_placement = qbo->placements;
if (domain == QXL_GEM_DOMAIN_VRAM) {
qbo->placements[c].mem_type = TTM_PL_VRAM;
qbo->placements[c++].flags = pflag;
@@ -86,7 +85,6 @@ void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain)
qbo->placements[c++].flags = 0;
}
qbo->placement.num_placement = c;
- qbo->placement.num_busy_placement = c;
for (i = 0; i < c; ++i) {
qbo->placements[i].fpfn = 0;
qbo->placements[i].lpfn = 0;
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index a92a5b0d4c25..5fc3c338ba9e 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -60,9 +60,7 @@ static void qxl_evict_flags(struct ttm_buffer_object *bo,
if (!qxl_ttm_bo_is_qxl_bo(bo)) {
placement->placement = &placements;
- placement->busy_placement = &placements;
placement->num_placement = 1;
- placement->num_busy_placement = 1;
return;
}
qbo = to_qxl_bo(bo);
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 10c0fbd9d2b4..a955f8a2f7fe 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -78,7 +78,6 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
u32 c = 0, i;
rbo->placement.placement = rbo->placements;
- rbo->placement.busy_placement = rbo->placements;
if (domain & RADEON_GEM_DOMAIN_VRAM) {
/* Try placing BOs which don't need CPU access outside of the
* CPU accessible part of VRAM
@@ -114,7 +113,6 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
}
rbo->placement.num_placement = c;
- rbo->placement.num_busy_placement = c;
for (i = 0; i < c; ++i) {
if ((rbo->flags & RADEON_GEM_CPU_ACCESS) &&
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 67075c85f847..efcff11b035e 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -93,9 +93,7 @@ static void radeon_evict_flags(struct ttm_buffer_object *bo,
if (!radeon_ttm_bo_is_radeon_bo(bo)) {
placement->placement = &placements;
- placement->busy_placement = &placements;
placement->num_placement = 1;
- placement->num_busy_placement = 1;
return;
}
rbo = container_of(bo, struct radeon_bo, tbo);
@@ -115,15 +113,11 @@ static void radeon_evict_flags(struct ttm_buffer_object *bo,
*/
radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM |
RADEON_GEM_DOMAIN_GTT);
- rbo->placement.num_busy_placement = 0;
for (i = 0; i < rbo->placement.num_placement; i++) {
if (rbo->placements[i].mem_type == TTM_PL_VRAM) {
if (rbo->placements[i].fpfn < fpfn)
rbo->placements[i].fpfn = fpfn;
- } else {
- rbo->placement.busy_placement =
- &rbo->placements[i];
- rbo->placement.num_busy_placement = 1;
+ rbo->placements[0].flags |= TTM_PL_FLAG_IDLE;
}
}
} else
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index a2cda184b2b2..058a1c8451b2 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -324,7 +324,6 @@ void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo,
rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
rbo->placement.num_placement++;
- rbo->placement.num_busy_placement++;
}
void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 33471e363ff4..5c1568528b15 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -405,8 +405,8 @@ static int ttm_bo_bounce_temp_buffer(struct ttm_buffer_object *bo,
struct ttm_resource *hop_mem;
int ret;
- hop_placement.num_placement = hop_placement.num_busy_placement = 1;
- hop_placement.placement = hop_placement.busy_placement = hop;
+ hop_placement.num_placement = 1;
+ hop_placement.placement = hop;
/* find space in the bounce domain */
ret = ttm_bo_mem_space(bo, &hop_placement, &hop_mem, ctx);
@@ -435,10 +435,9 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo,
dma_resv_assert_held(bo->base.resv);
placement.num_placement = 0;
- placement.num_busy_placement = 0;
bdev->funcs->evict_flags(bo, &placement);
- if (!placement.num_placement && !placement.num_busy_placement) {
+ if (!placement.num_placement) {
ret = ttm_bo_wait_ctx(bo, ctx);
if (ret)
return ret;
@@ -778,6 +777,9 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
const struct ttm_place *place = &placement->placement[i];
struct ttm_resource_manager *man;
+ if (place->flags & TTM_PL_FLAG_BUSY)
+ continue;
+
man = ttm_manager_type(bdev, place->mem_type);
if (!man || !ttm_resource_manager_used(man))
continue;
@@ -800,10 +802,13 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
return 0;
}
- for (i = 0; i < placement->num_busy_placement; ++i) {
- const struct ttm_place *place = &placement->busy_placement[i];
+ for (i = 0; i < placement->num_placement; ++i) {
+ const struct ttm_place *place = &placement->placement[i];
struct ttm_resource_manager *man;
+ if (place->flags & TTM_PL_FLAG_IDLE)
+ continue;
+
man = ttm_manager_type(bdev, place->mem_type);
if (!man || !ttm_resource_manager_used(man))
continue;
@@ -891,11 +896,11 @@ int ttm_bo_validate(struct ttm_buffer_object *bo,
/*
* Remove the backing store if no placement is given.
*/
- if (!placement->num_placement && !placement->num_busy_placement)
+ if (!placement->num_placement)
return ttm_bo_pipeline_gutting(bo);
/* Check whether we need to move buffer. */
- if (bo->resource && ttm_resource_compat(bo->resource, placement))
+ if (bo->resource && ttm_resource_compatible(bo->resource, placement))
return 0;
/* Moving of pinned BOs is forbidden */
diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c
index 7333f7a87a2f..f8db437318aa 100644
--- a/drivers/gpu/drm/ttm/ttm_resource.c
+++ b/drivers/gpu/drm/ttm/ttm_resource.c
@@ -285,37 +285,15 @@ bool ttm_resource_intersects(struct ttm_device *bdev,
}
/**
- * ttm_resource_compatible - test for compatibility
+ * ttm_resource_compatible - check if resource is compatible with placement
*
- * @bdev: TTM device structure
- * @res: The resource to test
- * @place: The placement to test
- * @size: How many bytes the new allocation needs.
- *
- * Test if @res compatible with @place and @size.
+ * @res: the resource to check
+ * @placement: the placement to check against
*
- * Returns true if the res placement compatible with @place and @size.
+ * Returns true if the placement is compatible.
*/
-bool ttm_resource_compatible(struct ttm_device *bdev,
- struct ttm_resource *res,
- const struct ttm_place *place,
- size_t size)
-{
- struct ttm_resource_manager *man;
-
- if (!res || !place)
- return false;
-
- man = ttm_manager_type(bdev, res->mem_type);
- if (!man->func->compatible)
- return true;
-
- return man->func->compatible(man, res, place, size);
-}
-
-static bool ttm_resource_places_compat(struct ttm_resource *res,
- const struct ttm_place *places,
- unsigned num_placement)
+bool ttm_resource_compatible(struct ttm_resource *res,
+ struct ttm_placement *placement)
{
struct ttm_buffer_object *bo = res->bo;
struct ttm_device *bdev = bo->bdev;
@@ -324,44 +302,25 @@ static bool ttm_resource_places_compat(struct ttm_resource *res,
if (res->placement & TTM_PL_FLAG_TEMPORARY)
return false;
- for (i = 0; i < num_placement; i++) {
- const struct ttm_place *heap = &places[i];
+ for (i = 0; i < placement->num_placement; i++) {
+ const struct ttm_place *place = &placement->placement[i];
+ struct ttm_resource_manager *man;
- if (!ttm_resource_compatible(bdev, res, heap, bo->base.size))
+ if (res->mem_type != place->mem_type)
+ continue;
+
+ man = ttm_manager_type(bdev, res->mem_type);
+ if (man->func->compatible &&
+ !man->func->compatible(man, res, place, bo->base.size))
continue;
- if ((res->mem_type == heap->mem_type) &&
- (!(heap->flags & TTM_PL_FLAG_CONTIGUOUS) ||
+ if ((!(place->flags & TTM_PL_FLAG_CONTIGUOUS) ||
(res->placement & TTM_PL_FLAG_CONTIGUOUS)))
return true;
}
return false;
}
-/**
- * ttm_resource_compat - check if resource is compatible with placement
- *
- * @res: the resource to check
- * @placement: the placement to check against
- *
- * Returns true if the placement is compatible.
- */
-bool ttm_resource_compat(struct ttm_resource *res,
- struct ttm_placement *placement)
-{
- if (ttm_resource_places_compat(res, placement->placement,
- placement->num_placement))
- return true;
-
- if ((placement->busy_placement != placement->placement ||
- placement->num_busy_placement > placement->num_placement) &&
- ttm_resource_places_compat(res, placement->busy_placement,
- placement->num_busy_placement))
- return true;
-
- return false;
-}
-
void ttm_resource_set_bo(struct ttm_resource *res,
struct ttm_buffer_object *bo)
{
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
index 9bf1f9d2f9b6..45a2d72d20d4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
@@ -186,8 +186,6 @@ int vmw_bo_pin_in_start_of_vram(struct vmw_private *dev_priv,
place.lpfn = PFN_UP(bo->resource->size);
placement.num_placement = 1;
placement.placement = &place;
- placement.num_busy_placement = 1;
- placement.busy_placement = &place;
vmw_execbuf_release_pinned_bo(dev_priv);
ret = ttm_bo_reserve(bo, interruptible, false, NULL);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index 856a352a72a6..02cd2e153c62 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -35,32 +35,9 @@ static const struct ttm_place vram_placement_flags = {
.flags = 0
};
-static const struct ttm_place sys_placement_flags = {
- .fpfn = 0,
- .lpfn = 0,
- .mem_type = TTM_PL_SYSTEM,
- .flags = 0
-};
-
-static const struct ttm_place gmr_placement_flags = {
- .fpfn = 0,
- .lpfn = 0,
- .mem_type = VMW_PL_GMR,
- .flags = 0
-};
-
-static const struct ttm_place mob_placement_flags = {
- .fpfn = 0,
- .lpfn = 0,
- .mem_type = VMW_PL_MOB,
- .flags = 0
-};
-
struct ttm_placement vmw_vram_placement = {
.num_placement = 1,
.placement = &vram_placement_flags,
- .num_busy_placement = 1,
- .busy_placement = &vram_placement_flags
};
static const struct ttm_place vram_gmr_placement_flags[] = {
@@ -68,7 +45,7 @@ static const struct ttm_place vram_gmr_placement_flags[] = {
.fpfn = 0,
.lpfn = 0,
.mem_type = TTM_PL_VRAM,
- .flags = 0
+ .flags = TTM_PL_FLAG_IDLE
}, {
.fpfn = 0,
.lpfn = 0,
@@ -77,62 +54,56 @@ static const struct ttm_place vram_gmr_placement_flags[] = {
}
};
-static const struct ttm_place gmr_vram_placement_flags[] = {
+struct ttm_placement vmw_vram_gmr_placement = {
+ .num_placement = 2,
+ .placement = vram_gmr_placement_flags,
+};
+
+static const struct ttm_place vram_sys_placement_flags[] = {
{
.fpfn = 0,
.lpfn = 0,
- .mem_type = VMW_PL_GMR,
- .flags = 0
+ .mem_type = TTM_PL_VRAM,
+ .flags = TTM_PL_FLAG_IDLE
}, {
.fpfn = 0,
.lpfn = 0,
- .mem_type = TTM_PL_VRAM,
- .flags = 0
+ .mem_type = TTM_PL_SYSTEM,
+ .flags = TTM_PL_FLAG_BUSY
}
};
-static const struct ttm_place vmw_sys_placement_flags = {
- .fpfn = 0,
- .lpfn = 0,
- .mem_type = VMW_PL_SYSTEM,
- .flags = 0
-};
-
-struct ttm_placement vmw_vram_gmr_placement = {
+struct ttm_placement vmw_vram_sys_placement = {
.num_placement = 2,
- .placement = vram_gmr_placement_flags,
- .num_busy_placement = 1,
- .busy_placement = &gmr_placement_flags
+ .placement = vram_sys_placement_flags,
};
-struct ttm_placement vmw_vram_sys_placement = {
- .num_placement = 1,
- .placement = &vram_placement_flags,
- .num_busy_placement = 1,
- .busy_placement = &sys_placement_flags
+static const struct ttm_place sys_placement_flags = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = TTM_PL_SYSTEM,
+ .flags = 0
};
struct ttm_placement vmw_sys_placement = {
.num_placement = 1,
.placement = &sys_placement_flags,
- .num_busy_placement = 1,
- .busy_placement = &sys_placement_flags
+};
+
+static const struct ttm_place vmw_sys_placement_flags = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = VMW_PL_SYSTEM,
+ .flags = 0
};
struct ttm_placement vmw_pt_sys_placement = {
.num_placement = 1,
.placement = &vmw_sys_placement_flags,
- .num_busy_placement = 1,
- .busy_placement = &vmw_sys_placement_flags
};
-static const struct ttm_place nonfixed_placement_flags[] = {
+static const struct ttm_place gmr_vram_placement_flags[] = {
{
- .fpfn = 0,
- .lpfn = 0,
- .mem_type = TTM_PL_SYSTEM,
- .flags = 0
- }, {
.fpfn = 0,
.lpfn = 0,
.mem_type = VMW_PL_GMR,
@@ -140,30 +111,50 @@ static const struct ttm_place nonfixed_placement_flags[] = {
}, {
.fpfn = 0,
.lpfn = 0,
- .mem_type = VMW_PL_MOB,
- .flags = 0
+ .mem_type = TTM_PL_VRAM,
+ .flags = TTM_PL_FLAG_BUSY
}
};
struct ttm_placement vmw_srf_placement = {
- .num_placement = 1,
- .num_busy_placement = 2,
- .placement = &gmr_placement_flags,
- .busy_placement = gmr_vram_placement_flags
+ .num_placement = 2,
+ .placement = gmr_vram_placement_flags
+};
+
+static const struct ttm_place mob_placement_flags = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = VMW_PL_MOB,
+ .flags = 0
};
struct ttm_placement vmw_mob_placement = {
.num_placement = 1,
- .num_busy_placement = 1,
.placement = &mob_placement_flags,
- .busy_placement = &mob_placement_flags
+};
+
+static const struct ttm_place nonfixed_placement_flags[] = {
+ {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = TTM_PL_SYSTEM,
+ .flags = 0
+ }, {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = VMW_PL_GMR,
+ .flags = TTM_PL_FLAG_IDLE
+ }, {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = VMW_PL_MOB,
+ .flags = TTM_PL_FLAG_IDLE
+ }
};
struct ttm_placement vmw_nonfixed_placement = {
.num_placement = 3,
.placement = nonfixed_placement_flags,
- .num_busy_placement = 1,
- .busy_placement = &sys_placement_flags
};
const size_t vmw_tt_size = sizeof(struct vmw_ttm_tt);
diff --git a/include/drm/ttm/ttm_placement.h b/include/drm/ttm/ttm_placement.h
index 8074d0f6cae5..c70e489e1f1e 100644
--- a/include/drm/ttm/ttm_placement.h
+++ b/include/drm/ttm/ttm_placement.h
@@ -64,6 +64,12 @@
/* For multihop handling */
#define TTM_PL_FLAG_TEMPORARY (1 << 2)
+/* Placement is never used during eviction */
+#define TTM_PL_FLAG_IDLE (1 << 3)
+
+/* Placement is only used during eviction */
+#define TTM_PL_FLAG_BUSY (1 << 4)
+
/**
* struct ttm_place
*
@@ -86,16 +92,12 @@ struct ttm_place {
*
* @num_placement: number of preferred placements
* @placement: preferred placements
- * @num_busy_placement: number of preferred placements when need to evict buffer
- * @busy_placement: preferred placements when need to evict buffer
*
* Structure indicating the placement you request for an object.
*/
struct ttm_placement {
unsigned num_placement;
const struct ttm_place *placement;
- unsigned num_busy_placement;
- const struct ttm_place *busy_placement;
};
#endif
diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
index 78a226eba953..1afa13f0c22b 100644
--- a/include/drm/ttm/ttm_resource.h
+++ b/include/drm/ttm/ttm_resource.h
@@ -365,12 +365,8 @@ bool ttm_resource_intersects(struct ttm_device *bdev,
struct ttm_resource *res,
const struct ttm_place *place,
size_t size);
-bool ttm_resource_compatible(struct ttm_device *bdev,
- struct ttm_resource *res,
- const struct ttm_place *place,
- size_t size);
-bool ttm_resource_compat(struct ttm_resource *res,
- struct ttm_placement *placement);
+bool ttm_resource_compatible(struct ttm_resource *res,
+ struct ttm_placement *placement);
void ttm_resource_set_bo(struct ttm_resource *res,
struct ttm_buffer_object *bo);
--
2.34.1
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