This is a note to let you know that I've just added the patch titled
drm/amdgpu: Fix memory range calculation
to the 6.6-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-amdgpu-fix-memory-range-calculation.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 89cc63d5d7249d57dbeaff95252fdf19b558a6e5
Author: Lijo Lazar <lijo.lazar@xxxxxxx>
Date: Fri May 10 13:30:34 2024 +0530
drm/amdgpu: Fix memory range calculation
[ Upstream commit ce798376ef6764de51d8f4684ae525b55df295fa ]
Consider the 16M reserved region also before range calculation for GMC
9.4.3 SOCs.
Fixes: a433f1f59484 ("drm/amdgpu: Initialize memory ranges for GC 9.4.3")
Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Le Ma <le.ma@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 8ace3f6210d37..6d2b9d260d92c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1949,7 +1949,7 @@ gmc_v9_0_init_sw_mem_ranges(struct amdgpu_device *adev,
break;
}
- size = adev->gmc.real_vram_size >> AMDGPU_GPU_PAGE_SHIFT;
+ size = (adev->gmc.real_vram_size + SZ_16M) >> AMDGPU_GPU_PAGE_SHIFT;
size /= adev->gmc.num_mem_partitions;
for (i = 0; i < adev->gmc.num_mem_partitions; ++i) {
