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virgl: Lower binding start into buffer indices

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This requires that we limit the number of max combinded SSBOs to 31,
otherwisewe shaders that use SSBO binding points with higher values
will break on the host.

Fixes CTS:
  KHR-GL43.shader_storage_buffer_object.basic-atomic-case1
  KHR-GL43.shader_storage_buffer_object.basic-atomic-case2
  KHR-GL43.shader_storage_buffer_object.advanced-indirectAddressing-case2
  KHR-GL43.shader_storage_buffer_object.advanced-usage-case1
  KHR-GL43.shader_storage_buffer_object.advanced-usage-sync
  KHR-GL43.shader_storage_buffer_object.advanced-matrix

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21586>
This commit is contained in:
Gert Wollny 2023-02-27 17:17:54 +01:00 • committed by Marge Bot
parent 99416624e5
commit 3ddbf64e41
2 changed files with 3 additions and 6 deletions
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5
src/gallium/drivers/virgl/ci/virpipe-gl-fails.txt
View file

@ -44,11 +44,6 @@ KHR-GL43.shader_image_load_store.basic-allFormats-loadGeometryStages,Fail
KHR-GL43.shader_image_load_store.basic-allFormats-storeGeometryStages,Fail
KHR-GL43.shader_image_load_store.basic-allTargets-store,Fail
KHR-GL43.shader_image_load_store.incomplete_textures,Fail
KHR-GL43.shader_storage_buffer_object.advanced-indirectAddressing-case2,Fail
KHR-GL43.shader_storage_buffer_object.advanced-usage-case1,Fail
KHR-GL43.shader_storage_buffer_object.advanced-usage-sync,Fail
KHR-GL43.shader_storage_buffer_object.basic-atomic-case1,Fail
KHR-GL43.shader_storage_buffer_object.basic-atomic-case2,Fail
KHR-GL43.shader_subroutine.ssbo_atomic_image_load_store,Fail
KHR-Single-GL43.arrays_of_arrays_gl.InteractionArgumentAliasing1,Fail

4
src/gallium/drivers/virgl/virgl_context.c
View file

@ -714,7 +714,9 @@ static void *virgl_shader_encoder(struct pipe_context *ctx,
if (shader->type == PIPE_SHADER_IR_NIR) {
struct nir_to_tgsi_options options = {
.unoptimized_ra = true,
.lower_fabs = true
.lower_fabs = true,
.lower_ssbo_bindings =
rs->caps.caps.v2.host_feature_check_version >= 16
};
if (!(rs->caps.caps.v2.capability_bits_v2 & VIRGL_CAP_V2_TEXTURE_SHADOW_LOD) &&