This is a note to let you know that I've just added the patch titled
drm/amdkfd: fixes for HMM mem allocation
to the 6.7-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-amdkfd-fixes-for-hmm-mem-allocation.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7404145ad8d9cf225d71952551cd23bf4e91ba87
Author: Dafna Hirschfeld <dhirschfeld@xxxxxxxxx>
Date: Sun Jan 7 15:07:00 2024 +0200
drm/amdkfd: fixes for HMM mem allocation
[ Upstream commit 02eed83abc1395a1207591aafad9bcfc5cb1abcb ]
Fix err return value and reset pgmap->type after checking it.
Fixes: c83dee9b6394 ("drm/amdkfd: add SPM support for SVM")
Reviewed-by: Felix Kuehling <felix.kuehling@xxxxxxx>
Signed-off-by: Dafna Hirschfeld <dhirschfeld@xxxxxxxxx>
Signed-off-by: Felix Kuehling <felix.kuehling@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 6c25dab051d5..b8680e0753ca 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -1021,7 +1021,7 @@ int kgd2kfd_init_zone_device(struct amdgpu_device *adev)
} else {
res = devm_request_free_mem_region(adev->dev, &iomem_resource, size);
if (IS_ERR(res))
- return -ENOMEM;
+ return PTR_ERR(res);
pgmap->range.start = res->start;
pgmap->range.end = res->end;
pgmap->type = MEMORY_DEVICE_PRIVATE;
@@ -1037,10 +1037,10 @@ int kgd2kfd_init_zone_device(struct amdgpu_device *adev)
r = devm_memremap_pages(adev->dev, pgmap);
if (IS_ERR(r)) {
pr_err("failed to register HMM device memory\n");
- /* Disable SVM support capability */
- pgmap->type = 0;
if (pgmap->type == MEMORY_DEVICE_PRIVATE)
devm_release_mem_region(adev->dev, res->start, resource_size(res));
+ /* Disable SVM support capability */
+ pgmap->type = 0;
return PTR_ERR(r);
}
