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winsys/amdgpu: add a kernel GDS management workaround retrying on -ENOMEM

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Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16885>
This commit is contained in:
Marek Olšák 2022-06-06 07:26:34 -04:00 • committed by Marge Bot
parent dfa8dcf80e
commit 4d4bd7cb5b
1 changed files with 17 additions and 5 deletions
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22
src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
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@ -1628,14 +1628,26 @@ static void amdgpu_cs_submit_ib(void *job, void *gdata, int thread_index)
assert(num_chunks <= ARRAY_SIZE(chunks));
r = noop ? 0 : amdgpu_cs_submit_raw2(ws->dev, acs->ctx->ctx, bo_list,
num_chunks, chunks, &seq_no);
r = 0;
if (!noop) {
/* The kernel returns -ENOMEM with many parallel processes using GDS such as test suites
* quite often, but it eventually succeeds after enough attempts. This happens frequently
* with dEQP using NGG streamout.
*/
do {
/* Wait 1 ms and try again. */
if (r == -ENOMEM)
os_time_sleep(1000);
r = amdgpu_cs_submit_raw2(ws->dev, acs->ctx->ctx, bo_list,
num_chunks, chunks, &seq_no);
} while (r == -ENOMEM);
}
}
if (r) {
if (r == -ENOMEM)
fprintf(stderr, "amdgpu: Not enough memory for command submission.\n");
else if (r == -ECANCELED)
if (r == -ECANCELED)
fprintf(stderr, "amdgpu: The CS has been cancelled because the context is lost.\n");
else
fprintf(stderr, "amdgpu: The CS has been rejected, "