Mesa (master): radv: limit LATE_ALLOC_GS to prevent a GPU hang on GFX10
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Tue Aug 11 12:58:46 UTC 2020
Module: Mesa
Branch: master
Commit: e4c6204d6595d7dc47c23ae637b8aba3307ec2cc
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=e4c6204d6595d7dc47c23ae637b8aba3307ec2cc
Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date: Tue Aug 11 11:26:16 2020 +0200
radv: limit LATE_ALLOC_GS to prevent a GPU hang on GFX10
Found by inspection, doesn't fix anything known.
Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6279>
---
src/amd/vulkan/si_cmd_buffer.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/amd/vulkan/si_cmd_buffer.c b/src/amd/vulkan/si_cmd_buffer.c
index 1286a7609e7..d3b0fd24f47 100644
--- a/src/amd/vulkan/si_cmd_buffer.c
+++ b/src/amd/vulkan/si_cmd_buffer.c
@@ -336,6 +336,10 @@ si_emit_graphics(struct radv_device *device,
late_alloc_wave64_gs = 0;
cu_mask_gs = 0xffff;
}
+
+ /* Limit LATE_ALLOC_GS for prevent a hang (hw bug). */
+ if (physical_device->rad_info.chip_class == GFX10)
+ late_alloc_wave64_gs = MIN2(late_alloc_wave64_gs, 64);
} else {
if (!physical_device->rad_info.use_late_alloc) {
late_alloc_wave64 = 0;
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