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drm/radeon: don't allow RADEON_GEM_DOMAIN_CPU for command submission

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It hangs the hardware.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Marek Olšák 2014-05-27 02:56:36 +02:00 committed by Christian König
parent 60a445405a
commit ec65da385d
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/radeon/radeon_cs.c
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@ -152,6 +152,12 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
uint32_t domain = r->write_domain ? uint32_t domain = r->write_domain ?
r->write_domain : r->read_domains; r->write_domain : r->read_domains;
if (domain & RADEON_GEM_DOMAIN_CPU) {
DRM_ERROR("RADEON_GEM_DOMAIN_CPU is not valid "
"for command submission\n");
return -EINVAL;
}
p->relocs[i].domain = domain; p->relocs[i].domain = domain;
if (domain == RADEON_GEM_DOMAIN_VRAM) if (domain == RADEON_GEM_DOMAIN_VRAM)
domain |= RADEON_GEM_DOMAIN_GTT; domain |= RADEON_GEM_DOMAIN_GTT;