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drm/i915/adlp/fb: Prevent the mapping of redundant trailing padding NULL pages

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So far the remapped view size in GTT/DPT was padded to the next aligned
offset unnecessarily after the last color plane with an unaligned size.
Remove the unnecessary padding.

Cc: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Fixes: 3d1adc3d64cf ("drm/i915/adlp: Add support for remapping CCS FBs")
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211026225105.2783797-3-imre.deak@intel.com
This commit is contained in:
Imre Deak 2021-10-27 01:51:00 +03:00
parent 2ee5ef9c93
commit 6b6636e176
2 changed files with 11 additions and 1 deletions
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9
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -620,9 +620,16 @@ unsigned int intel_remapped_info_size(const struct intel_remapped_info *rem_info
int i; int i;
for (i = 0 ; i < ARRAY_SIZE(rem_info->plane); i++) { for (i = 0 ; i < ARRAY_SIZE(rem_info->plane); i++) {
unsigned int plane_size;
plane_size = rem_info->plane[i].dst_stride * rem_info->plane[i].height;
if (plane_size == 0)
continue;
if (rem_info->plane_alignment) if (rem_info->plane_alignment)
size = ALIGN(size, rem_info->plane_alignment); size = ALIGN(size, rem_info->plane_alignment);
size += rem_info->plane[i].dst_stride * rem_info->plane[i].height;
size += plane_size;
} }
return size; return size;

3
drivers/gpu/drm/i915/gt/intel_ggtt.c
View File

@ -1396,6 +1396,9 @@ remap_pages(struct drm_i915_gem_object *obj,
{ {
unsigned int row; unsigned int row;
if (!width || !height)
return sg;
if (alignment_pad) { if (alignment_pad) {
st->nents++; st->nents++;