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-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_object_types.h2
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_ttm.c18
-rw-r--r--drivers/gpu/drm/i915/i915_ttm_buddy_manager.c3
-rw-r--r--drivers/gpu/drm/i915/intel_region_ttm.c7
-rw-r--r--drivers/gpu/drm/i915/intel_region_ttm.h1
-rw-r--r--drivers/gpu/drm/i915/selftests/mock_region.c3
6 files changed, 28 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
index fd54eb8f4826..2c88bdb8ff7c 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
@@ -631,6 +631,8 @@ struct drm_i915_gem_object {
struct drm_mm_node *stolen;
+ resource_size_t bo_offset;
+
unsigned long scratch;
u64 encode;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 5e543ed867a2..e4a06fcf741a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -126,6 +126,8 @@ i915_ttm_select_tt_caching(const struct drm_i915_gem_object *obj)
static void
i915_ttm_place_from_region(const struct intel_memory_region *mr,
struct ttm_place *place,
+ resource_size_t offset,
+ resource_size_t size,
unsigned int flags)
{
memset(place, 0, sizeof(*place));
@@ -133,7 +135,10 @@ i915_ttm_place_from_region(const struct intel_memory_region *mr,
if (flags & I915_BO_ALLOC_CONTIGUOUS)
place->flags |= TTM_PL_FLAG_CONTIGUOUS;
- if (mr->io_size && mr->io_size < mr->total) {
+ if (offset != I915_BO_INVALID_OFFSET) {
+ place->fpfn = offset >> PAGE_SHIFT;
+ place->lpfn = place->fpfn + (size >> PAGE_SHIFT);
+ } else if (mr->io_size && mr->io_size < mr->total) {
if (flags & I915_BO_ALLOC_GPU_ONLY) {
place->flags |= TTM_PL_FLAG_TOPDOWN;
} else {
@@ -155,12 +160,14 @@ i915_ttm_placement_from_obj(const struct drm_i915_gem_object *obj,
placement->num_placement = 1;
i915_ttm_place_from_region(num_allowed ? obj->mm.placements[0] :
- obj->mm.region, requested, flags);
+ obj->mm.region, requested, 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, flags);
+ i915_ttm_place_from_region(obj->mm.placements[i], busy + i,
+ obj->bo_offset, obj->base.size, flags);
if (num_allowed == 0) {
*busy = *requested;
@@ -802,7 +809,8 @@ static int __i915_ttm_migrate(struct drm_i915_gem_object *obj,
struct ttm_placement placement;
int ret;
- i915_ttm_place_from_region(mr, &requested, flags);
+ 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;
@@ -1159,6 +1167,8 @@ int __i915_gem_ttm_object_init(struct intel_memory_region *mem,
drm_gem_private_object_init(&i915->drm, &obj->base, size);
i915_gem_object_init(obj, &i915_gem_ttm_obj_ops, &lock_class, flags);
+ obj->bo_offset = offset;
+
/* Don't put on a region list until we're either locked or fully initialized. */
obj->mm.region = mem;
INIT_LIST_HEAD(&obj->mm.region_link);
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index 129f668f21ff..8e4e3f72c1ef 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -71,7 +71,8 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
GEM_BUG_ON(min_page_size < mm->chunk_size);
- if (place->flags & TTM_PL_FLAG_CONTIGUOUS) {
+ if (place->fpfn + bman_res->base.num_pages != place->lpfn &&
+ place->flags & TTM_PL_FLAG_CONTIGUOUS) {
unsigned long pages;
size = roundup_pow_of_two(size);
diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c
index 737ef3f4ab54..62ff77445b01 100644
--- a/drivers/gpu/drm/i915/intel_region_ttm.c
+++ b/drivers/gpu/drm/i915/intel_region_ttm.c
@@ -12,6 +12,7 @@
#include "intel_region_ttm.h"
+#include "gem/i915_gem_region.h"
#include "gem/i915_gem_ttm.h" /* For the funcs/ops export only */
/**
* DOC: TTM support structure
@@ -191,6 +192,7 @@ intel_region_ttm_resource_to_rsgt(struct intel_memory_region *mem,
*/
struct ttm_resource *
intel_region_ttm_resource_alloc(struct intel_memory_region *mem,
+ resource_size_t offset,
resource_size_t size,
unsigned int flags)
{
@@ -202,7 +204,10 @@ intel_region_ttm_resource_alloc(struct intel_memory_region *mem,
if (flags & I915_BO_ALLOC_CONTIGUOUS)
place.flags |= TTM_PL_FLAG_CONTIGUOUS;
- if (mem->io_size && mem->io_size < mem->total) {
+ if (offset != I915_BO_INVALID_OFFSET) {
+ place.fpfn = offset >> PAGE_SHIFT;
+ place.lpfn = place.fpfn + (size >> PAGE_SHIFT);
+ } else if (mem->io_size && mem->io_size < mem->total) {
if (flags & I915_BO_ALLOC_GPU_ONLY) {
place.flags |= TTM_PL_FLAG_TOPDOWN;
} else {
diff --git a/drivers/gpu/drm/i915/intel_region_ttm.h b/drivers/gpu/drm/i915/intel_region_ttm.h
index fdee5e7bd46c..cf9d86dcf409 100644
--- a/drivers/gpu/drm/i915/intel_region_ttm.h
+++ b/drivers/gpu/drm/i915/intel_region_ttm.h
@@ -36,6 +36,7 @@ struct ttm_device_funcs *i915_ttm_driver(void);
#ifdef CONFIG_DRM_I915_SELFTEST
struct ttm_resource *
intel_region_ttm_resource_alloc(struct intel_memory_region *mem,
+ resource_size_t offset,
resource_size_t size,
unsigned int flags);
#endif
diff --git a/drivers/gpu/drm/i915/selftests/mock_region.c b/drivers/gpu/drm/i915/selftests/mock_region.c
index f16c0b7198c7..670557ce1024 100644
--- a/drivers/gpu/drm/i915/selftests/mock_region.c
+++ b/drivers/gpu/drm/i915/selftests/mock_region.c
@@ -26,6 +26,7 @@ static int mock_region_get_pages(struct drm_i915_gem_object *obj)
int err;
obj->mm.res = intel_region_ttm_resource_alloc(obj->mm.region,
+ obj->bo_offset,
obj->base.size,
obj->flags);
if (IS_ERR(obj->mm.res))
@@ -71,6 +72,8 @@ static int mock_object_init(struct intel_memory_region *mem,
drm_gem_private_object_init(&i915->drm, &obj->base, size);
i915_gem_object_init(obj, &mock_region_obj_ops, &lock_class, flags);
+ obj->bo_offset = offset;
+
obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT;
i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE);
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-21 04:57:12 +0000