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pan/midgard: Describe quirk MIDGARD_BROKEN_LOD

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Corresponds to errata #10471, applies to T6xx and T720. Fixed in T760.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-11-19 21:21:19 -05:00 • committed by Tomeu Vizoso
parent d32d4acf68
commit 68c2c7962a
1 changed files with 13 additions and 2 deletions
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15
src/panfrost/midgard/midgard_quirks.h
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@ -48,17 +48,28 @@
#define MIDGARD_OLD_BLEND (1 << 2)
/* Errata causing the LOD clamps and bias in the sampler descriptor to be
* ignored. This errata affects the command stream but uses a compiler
* workaround (applying the clamps/bias manually in the shader. Corresponds in
* BASE_HW_ISSUE_10471 in kbase, described as "TEXGRD doesn't honor Sampler
* Descriptor LOD clamps nor bias". (I'm assuming TEXGRD is what we call
* textureLod) */
#define MIDGARD_BROKEN_LOD (1 << 3)
static inline unsigned
midgard_get_quirks(unsigned gpu_id)
{
switch (gpu_id) {
case 0x600:
case 0x620:
return MIDGARD_OLD_BLEND;
return MIDGARD_OLD_BLEND |
MIDGARD_BROKEN_LOD;
case 0x720:
return MIDGARD_INTERPIPE_REG_ALIASING |
MIDGARD_OLD_BLEND;
MIDGARD_OLD_BLEND |
MIDGARD_BROKEN_LOD;
case 0x820:
case 0x830: