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authorIngo Molnar <mingo@kernel.org>2013-10-09 12:36:13 +0200
committerIngo Molnar <mingo@kernel.org>2013-10-09 12:36:13 +0200
commit37bf06375c90a42fe07b9bebdb07bc316ae5a0ce (patch)
treede572dd6d3955b0725001776a7b03796f99e1e8e /drivers/gpu/drm/radeon/rs600.c
parent6bfa687c19b7ab8adee03f0d43c197c2945dd869 (diff)
parentd0e639c9e06d44e713170031fe05fb60ebe680af (diff)
Merge tag 'v3.12-rc4' into sched/core
Merge Linux v3.12-rc4 to fix a conflict and also to refresh the tree before applying more scheduler patches. Conflicts: arch/avr32/include/asm/Kbuild Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/radeon/rs600.c')
-rw-r--r--drivers/gpu/drm/radeon/rs600.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 670b555d2ca..6acba8017b9 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -847,16 +847,26 @@ void rs600_bandwidth_update(struct radeon_device *rdev)
uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
{
+ unsigned long flags;
+ u32 r;
+
+ spin_lock_irqsave(&rdev->mc_idx_lock, flags);
WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
S_000070_MC_IND_CITF_ARB0(1));
- return RREG32(R_000074_MC_IND_DATA);
+ r = RREG32(R_000074_MC_IND_DATA);
+ spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
+ return r;
}
void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&rdev->mc_idx_lock, flags);
WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
WREG32(R_000074_MC_IND_DATA, v);
+ spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
}
static void rs600_debugfs(struct radeon_device *rdev)