Module: Mesa
Branch: master
Commit: 8514c75a26ec2a83784ea9063ed5e6587184832c
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=8514c75a26ec2a83784ea9063ed5e6587184832c
Author: Jordan Justen <jordan.l.jus...@intel.com>
Date: Sat Feb 13 14:25:33 2016 -0800
i965: Set compute shader shared memory max to 64k
See Ivy Bridge PRM, Volume 2, Part 2, 1.8.4 INTERFACE_DESCRIPTOR_DATA:
DWORD 5, bits 20:16: "This field indicates how much shared local
memory the thread group requires. The amount is specified in 4k
blocks, but only powers of 2 are allowed: 0, 4k, 8k, 16k, 32k and 64k
per half-slice."
For Haswell, see Volume 2d, INTERFACE_DESCRIPTOR_DATA:
DWORD 5, bits 20:16: With text identical to the Ivy Bridge PRM.
For Broadwell, see Volume 2d, INTERFACE_DESCRIPTOR_DATA:
DWORD 6, bits 20:16: With text identical to the Ivy Bridge PRM.
Signed-off-by: Jordan Justen <jordan.l.jus...@intel.com>
Reviewed-by: Ben Widawsky <benjamin.widaw...@intel.com>
---
src/mesa/drivers/dri/i965/brw_context.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_context.c
b/src/mesa/drivers/dri/i965/brw_context.c
index 8144a0e..31b6b2a 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -724,7 +724,7 @@ brw_initialize_cs_context_constants(struct brw_context
*brw, unsigned max_thread
ctx->Const.MaxComputeWorkGroupSize[1] = max_invocations;
ctx->Const.MaxComputeWorkGroupSize[2] = max_invocations;
ctx->Const.MaxComputeWorkGroupInvocations = max_invocations;
- ctx->Const.MaxComputeSharedMemorySize = 32768;
+ ctx->Const.MaxComputeSharedMemorySize = 64 * 1024;
}
/**
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