* [PATCH AUTOSEL 5.4 019/205] drm/amdgpu: remove excess function parameter description
[not found] <20200116164300.6705-1-sashal@kernel.org>
@ 2020-01-16 16:39 ` Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 066/205] drm/amdgpu/vi: silence an uninitialized variable warning Sasha Levin
2020-01-16 16:42 ` [PATCH AUTOSEL 5.4 169/205] drm/radeon: fix bad DMA from INTERRUPT_CNTL2 Sasha Levin
2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2020-01-16 16:39 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Alex Deucher, yu kuai, dri-devel, amd-gfx, Sasha Levin
From: yu kuai <yukuai3@huawei.com>
[ Upstream commit d0580c09c65cff211f589a40e08eabc62da463fb ]
Fixes gcc warning:
drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c:431: warning: Excess function
parameter 'sw' description in 'vcn_v2_5_disable_clock_gating'
drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c:550: warning: Excess function
parameter 'sw' description in 'vcn_v2_5_enable_clock_gating'
Fixes: cbead2bdfcf1 ("drm/amdgpu: add VCN2.5 VCPU start and stop")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
index 395c2259f979..9d778a0b2c5e 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
@@ -423,7 +423,6 @@ static void vcn_v2_5_mc_resume(struct amdgpu_device *adev)
* vcn_v2_5_disable_clock_gating - disable VCN clock gating
*
* @adev: amdgpu_device pointer
- * @sw: enable SW clock gating
*
* Disable clock gating for VCN block
*/
@@ -542,7 +541,6 @@ static void vcn_v2_5_disable_clock_gating(struct amdgpu_device *adev)
* vcn_v2_5_enable_clock_gating - enable VCN clock gating
*
* @adev: amdgpu_device pointer
- * @sw: enable SW clock gating
*
* Enable clock gating for VCN block
*/
--
2.20.1
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^ permalink raw reply related [flat|nested] 3+ messages in thread* [PATCH AUTOSEL 5.4 169/205] drm/radeon: fix bad DMA from INTERRUPT_CNTL2
[not found] <20200116164300.6705-1-sashal@kernel.org>
2020-01-16 16:39 ` [PATCH AUTOSEL 5.4 019/205] drm/amdgpu: remove excess function parameter description Sasha Levin
2020-01-16 16:40 ` [PATCH AUTOSEL 5.4 066/205] drm/amdgpu/vi: silence an uninitialized variable warning Sasha Levin
@ 2020-01-16 16:42 ` Sasha Levin
2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2020-01-16 16:42 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sam Bobroff, Alex Deucher, dri-devel, amd-gfx, Sasha Levin
From: Sam Bobroff <sbobroff@linux.ibm.com>
[ Upstream commit 62d91dd2851e8ae2ca552f1b090a3575a4edf759 ]
The INTERRUPT_CNTL2 register expects a valid DMA address, but is
currently set with a GPU MC address. This can cause problems on
systems that detect the resulting DMA read from an invalid address
(found on a Power8 guest).
Instead, use the DMA address of the dummy page because it will always
be safe.
Fixes: d8f60cfc9345 ("drm/radeon/kms: Add support for interrupts on r6xx/r7xx chips (v3)")
Fixes: 25a857fbe973 ("drm/radeon/kms: add support for interrupts on SI")
Fixes: a59781bbe528 ("drm/radeon: add support for interrupts on CIK (v5)")
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/radeon/cik.c | 4 ++--
drivers/gpu/drm/radeon/r600.c | 4 ++--
drivers/gpu/drm/radeon/si.c | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 62eab82a64f9..897442754fd0 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -6969,8 +6969,8 @@ static int cik_irq_init(struct radeon_device *rdev)
}
/* setup interrupt control */
- /* XXX this should actually be a bus address, not an MC address. same on older asics */
- WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
+ /* set dummy read address to dummy page address */
+ WREG32(INTERRUPT_CNTL2, rdev->dummy_page.addr >> 8);
interrupt_cntl = RREG32(INTERRUPT_CNTL);
/* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
* IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index e937cc01910d..033bc466a862 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3696,8 +3696,8 @@ int r600_irq_init(struct radeon_device *rdev)
}
/* setup interrupt control */
- /* set dummy read address to ring address */
- WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
+ /* set dummy read address to dummy page address */
+ WREG32(INTERRUPT_CNTL2, rdev->dummy_page.addr >> 8);
interrupt_cntl = RREG32(INTERRUPT_CNTL);
/* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
* IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 05894d198a79..1d8efb0eefdb 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -5997,8 +5997,8 @@ static int si_irq_init(struct radeon_device *rdev)
}
/* setup interrupt control */
- /* set dummy read address to ring address */
- WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
+ /* set dummy read address to dummy page address */
+ WREG32(INTERRUPT_CNTL2, rdev->dummy_page.addr >> 8);
interrupt_cntl = RREG32(INTERRUPT_CNTL);
/* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
* IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
--
2.20.1
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^ permalink raw reply related [flat|nested] 3+ messages in thread