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pan/midgard: Enable LOD lowering only on buggy chips

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T720 and earlier need this workaround, so check the quirk before
lowering.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-11-21 08:45:27 -05:00 • committed by Tomeu Vizoso
parent 68c2c7962a
commit bda2bb31b1
1 changed files with 7 additions and 2 deletions
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9
src/panfrost/midgard/midgard_compile.c
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@ -485,7 +485,7 @@ midgard_nir_lower_fdot2(nir_shader *shader)
/* Flushes undefined values to zero */
static void
optimise_nir(nir_shader *nir)
optimise_nir(nir_shader *nir, unsigned quirks)
{
bool progress;
unsigned lower_flrp =
@ -504,6 +504,11 @@ optimise_nir(nir_shader *nir)
NIR_PASS(progress, nir, nir_lower_tex, &lower_tex_options);
/* T720 is broken. */
if (quirks & MIDGARD_BROKEN_LOD)
NIR_PASS_V(nir, midgard_nir_lod_errata);
do {
progress = false;
@ -2481,7 +2486,7 @@ midgard_compile_shader_nir(nir_shader *nir, midgard_program *program, bool is_bl
/* Optimisation passes */
optimise_nir(nir);
optimise_nir(nir, ctx->quirks);
if (midgard_debug & MIDGARD_DBG_SHADERS) {
nir_print_shader(nir, stdout);