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| author | Ralph Campbell <rcampbell@nvidia.com> | 2020-07-23 15:30:02 -0700 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-28 16:20:33 -0300 |
| commit | f8477ce6b5923ef9829e32f2165ea9c2b4b754d2 (patch) | |
| tree | f5f62e123b88987cec782eaf9f55cb9a0b52bda6 /drivers/gpu/drm/nouveau/nouveau_svm.h | |
| parent | 998427b3ad2c769082853880cf353557ec0ec77d (diff) | |
| download | lwn-f8477ce6b5923ef9829e32f2165ea9c2b4b754d2.tar.gz lwn-f8477ce6b5923ef9829e32f2165ea9c2b4b754d2.zip | |
nouveau/svm: use the new migration invalidation
Use the new MMU_NOTIFY_MIGRATE event to skip GPU MMU invalidations of
device private memory and handle the invalidation in the driver as part of
migrating device private memory.
Link: https://lore.kernel.org/r/20200723223004.9586-5-rcampbell@nvidia.com
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_svm.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_svm.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.h b/drivers/gpu/drm/nouveau/nouveau_svm.h index f0fcd1b72e8b..e7d63d7f0c2d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_svm.h +++ b/drivers/gpu/drm/nouveau/nouveau_svm.h @@ -1,11 +1,21 @@ #ifndef __NOUVEAU_SVM_H__ #define __NOUVEAU_SVM_H__ #include <nvif/os.h> +#include <linux/mmu_notifier.h> struct drm_device; struct drm_file; struct nouveau_drm; -struct nouveau_svmm; +struct nouveau_svmm { + struct mmu_notifier notifier; + struct nouveau_vmm *vmm; + struct { + unsigned long start; + unsigned long limit; + } unmanaged; + + struct mutex mutex; +}; #if IS_ENABLED(CONFIG_DRM_NOUVEAU_SVM) void nouveau_svm_init(struct nouveau_drm *); @@ -19,6 +29,7 @@ int nouveau_svmm_join(struct nouveau_svmm *, u64 inst); void nouveau_svmm_part(struct nouveau_svmm *, u64 inst); int nouveau_svmm_bind(struct drm_device *, void *, struct drm_file *); +void nouveau_svmm_invalidate(struct nouveau_svmm *svmm, u64 start, u64 limit); u64 *nouveau_pfns_alloc(unsigned long npages); void nouveau_pfns_free(u64 *pfns); void nouveau_pfns_map(struct nouveau_svmm *svmm, struct mm_struct *mm, |