diff options
| author | Imre Deak <imre.deak@intel.com> | 2021-10-26 20:44:59 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2021-11-02 18:00:48 +0200 |
| commit | c712ecac599add7e877883a7c8e2857d3c19836f (patch) | |
| tree | 7df42a9dbc58b2afcf7eec0b5155feb313e3af09 | |
| parent | bd361e81d653093b05821127296a843accfa58d4 (diff) | |
lib/igt_fb/tgl+: Prevent CCS FB AUX surface size overalignment
So far the page alignment of the size of CCS AUX surfaces was ensured
by aligning the height of the surface to 64, which multiplied by the 64
byte CCS tile width resulted in the multiple of a 4k value. This can
overallocate the CCS surface up to ~1/4th of one main surface tile-row
size. Avoid the overallocation by simply aligning the size to 4k.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
| -rw-r--r-- | lib/igt_fb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/igt_fb.c b/lib/igt_fb.c index 67e63d48..92a0170c 100644 --- a/lib/igt_fb.c +++ b/lib/igt_fb.c @@ -827,8 +827,8 @@ static uint64_t calc_plane_size(struct igt_fb *fb, int plane) uint64_t size; /* The AUX CCS surface must be page aligned */ - size = (uint64_t)fb->strides[plane] * - ALIGN(fb->plane_height[plane], 64); + size = ALIGN((uint64_t)fb->strides[plane] * + fb->plane_height[plane], 4096); return size; } else { |