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[AMD Public Use]
Yes, please drop this patch for stable.
Alex
From: Marek Olšák <maraeo@xxxxxxxxx>
Sent: Monday, May 18, 2020 6:35 PM
To: Sasha Levin <sashal@xxxxxxxxxx>
Cc: Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>; stable@xxxxxxxxxxxxxxx <stable@xxxxxxxxxxxxxxx>; Pelloux-prayer, Pierre-eric <Pierre-eric.Pelloux-prayer@xxxxxxx>; Olsak, Marek <Marek.Olsak@xxxxxxx>; amd-gfx mailing list <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>;
dri-devel <dri-devel@xxxxxxxxxxxxxxxxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Koenig, Christian <Christian.Koenig@xxxxxxx>
Subject: Re: [PATCH AUTOSEL 5.6 33/50] drm/amdgpu: bump version for invalidate L2 before SDMA IBs
Hi Sasha,
I disagree with this. Bumping the driver version will have implications on other new features, because it's like an ABI barrier exposing new functionality.
Marek
From: Marek Olšák <marek.olsak@xxxxxxx>
[ Upstream commit 9017a4897a20658f010bebea825262963c10afa6 ]
This fixes GPU hangs due to cache coherency issues.
Bump the driver version. Split out from the original patch.
Signed-off-by: Marek Olšák <marek.olsak@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 42f4febe24c6d..8d45a2b662aeb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -85,9 +85,10 @@
* - 3.34.0 - Non-DC can flip correctly between buffers with different pitches
* - 3.35.0 - Add drm_amdgpu_info_device::tcc_disabled_mask
* - 3.36.0 - Allow reading more status registers on si/cik
+ * - 3.37.0 - L2 is invalidated before SDMA IBs, needed for correctness
*/
#define KMS_DRIVER_MAJOR 3
-#define KMS_DRIVER_MINOR 36
+#define KMS_DRIVER_MINOR 37
#define KMS_DRIVER_PATCHLEVEL 0
int amdgpu_vram_limit = 0;
--
2.20.1
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