diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2235-drm-amdgpu-disable-concurrent-flushes-for-Navi10-v2.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2235-drm-amdgpu-disable-concurrent-flushes-for-Navi10-v2.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2235-drm-amdgpu-disable-concurrent-flushes-for-Navi10-v2.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2235-drm-amdgpu-disable-concurrent-flushes-for-Navi10-v2.patch new file mode 100644 index 00000000..46f1a076 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2235-drm-amdgpu-disable-concurrent-flushes-for-Navi10-v2.patch @@ -0,0 +1,42 @@ +From 3fc3f1dde33ff639d3303a12e32627074a168c6b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com> +Date: Thu, 7 Feb 2019 12:10:29 +0100 +Subject: [PATCH 2235/2940] drm/amdgpu: disable concurrent flushes for Navi10 + v2 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Navi10 have a bug in the SDMA which can theoretically cause memory +corruption with concurrent VMID flushes + +v2: explicitely check Navi10 + +Signed-off-by: Christian König <christian.koenig@amd.com> +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | 7 +++++-- + 1 file changed, 5 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c +index df9b173c3d0b..5899d214187b 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c +@@ -364,8 +364,11 @@ static int amdgpu_vmid_grab_used(struct amdgpu_vm *vm, + if (updates && (!flushed || dma_fence_is_later(updates, flushed))) + needs_flush = true; + +- /* Concurrent flushes are only possible starting with Vega10 */ +- if (adev->asic_type < CHIP_VEGA10 && needs_flush) ++ /* Concurrent flushes are only possible starting with Vega10 and ++ * are broken on Navi10 and Navi14. ++ */ ++ if (needs_flush && (adev->asic_type < CHIP_VEGA10 || ++ adev->asic_type == CHIP_NAVI10)) + continue; + + /* Good, we can use this VMID. Remember this submission as +-- +2.17.1 + |