This is a note to let you know that I've just added the patch titled
drm/radeon: don't allow RADEON_GEM_DOMAIN_CPU for command submission
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-don-t-allow-radeon_gem_domain_cpu-for-command-submission.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ec65da385d46f63740c1c9230b891a6dcbd64c71 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak@xxxxxxx>
Date: Tue, 27 May 2014 02:56:36 +0200
Subject: drm/radeon: don't allow RADEON_GEM_DOMAIN_CPU for command submission
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From: Marek Olšák <marek.olsak@xxxxxxx>
commit ec65da385d46f63740c1c9230b891a6dcbd64c71 upstream.
It hangs the hardware.
Signed-off-by: Marek Olšák <marek.olsak@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_cs.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -97,6 +97,12 @@ static int radeon_cs_parser_relocs(struc
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;
Patches currently in stable-queue which might be from marek.olsak@xxxxxxx are
queue-3.14/drm-radeon-don-t-allow-radeon_gem_domain_cpu-for-command-submission.patch
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