[PATCH 3.11 42/93] drm/radeon: don't allow RADEON_GEM_DOMAIN_CPU for command submission
Luis Henriques
luis.henriques at canonical.com
Mon Jun 23 13:02:21 UTC 2014
3.11.10.12 -stable review patch. If anyone has any objections, please let me know.
------------------
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak at amd.com>
commit ec65da385d46f63740c1c9230b891a6dcbd64c71 upstream.
It hangs the hardware.
Signed-off-by: Marek Olšák <marek.olsak at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
[ luis: backported to 3.11: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
drivers/gpu/drm/radeon/radeon_cs.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 41b170d25c08..ff35fa18d7ed 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -96,6 +96,12 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
uint32_t domain = r->write_domain ?
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].lobj.domain = domain;
if (domain == RADEON_GEM_DOMAIN_VRAM)
domain |= RADEON_GEM_DOMAIN_GTT;
--
1.9.1
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