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drm/i915: consider HAS_FLAT_CCS() in needs_ccs_pages

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Just move the HAS_FLAT_CCS() check into needs_ccs_pages. This also then
fixes i915_ttm_memcpy_allowed() which was incorrectly reporting true on
DG1, even though it doesn't have small-BAR or flat-CCS.

References: https://gitlab.freedesktop.org/drm/intel/-/issues/6605
Fixes: efeb3caf43 ("drm/i915/ttm: disallow CPU fallback mode for ccs pages")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220905105329.41455-1-matthew.auld@intel.com
This commit is contained in:
Matthew Auld 2022-09-05 11:53:29 +01:00
parent c2a6502f36
commit 873fef8833
2 changed files with 4 additions and 1 deletions
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3
drivers/gpu/drm/i915/gem/i915_gem_object.c
View File

@ -723,6 +723,9 @@ bool i915_gem_object_needs_ccs_pages(struct drm_i915_gem_object *obj)
bool lmem_placement = false;
int i;
if (!HAS_FLAT_CCS(to_i915(obj->base.dev)))
return false;
for (i = 0; i < obj->mm.n_placements; i++) {
/* Compression is not allowed for the objects with smem placement */
if (obj->mm.placements[i]->type == INTEL_MEMORY_SYSTEM)

2
drivers/gpu/drm/i915/gem/i915_gem_ttm.c
View File

@ -297,7 +297,7 @@ static struct ttm_tt *i915_ttm_tt_create(struct ttm_buffer_object *bo,
i915_tt->is_shmem = true;
}
if (HAS_FLAT_CCS(i915) && i915_gem_object_needs_ccs_pages(obj))
if (i915_gem_object_needs_ccs_pages(obj))
ccs_pages = DIV_ROUND_UP(DIV_ROUND_UP(bo->base.size,
NUM_BYTES_PER_CCS_BYTE),
PAGE_SIZE);