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| author | Rob Clark <robdclark@gmail.com> | 2016-09-29 01:58:32 +0200 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2016-11-27 17:23:09 +0100 |
| commit | 667ce33e57d0de4074a8fb62d24daeefd03f6333 (patch) | |
| tree | 414dba9fe67904d17057eedfa8a44d651dd67a31 /drivers/gpu/drm/msm/msm_drv.h | |
| parent | drm/msm/mdp5: clip img size to src size (diff) | |
| download | linux-667ce33e57d0de4074a8fb62d24daeefd03f6333.tar.xz linux-667ce33e57d0de4074a8fb62d24daeefd03f6333.zip | |
drm/msm: support multiple address spaces
We can have various combinations of 64b and 32b address space, ie. 64b
CPU but 32b display and gpu, or 64b CPU and GPU but 32b display. So
best to decouple the device iova's from mmap offset.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_drv.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.h | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index c6048ab09b9b..03ce6a18ac40 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -52,6 +52,8 @@ struct msm_perf_state; struct msm_gem_submit; struct msm_fence_context; struct msm_fence_cb; +struct msm_gem_address_space; +struct msm_gem_vma; #define NUM_DOMAINS 2 /* one for KMS, then one per gpu core (?) */ @@ -121,9 +123,13 @@ struct msm_drm_private { uint32_t pending_crtcs; wait_queue_head_t pending_crtcs_event; - /* registered MMUs: */ - unsigned int num_mmus; - struct msm_mmu *mmus[NUM_DOMAINS]; + /* Registered address spaces.. currently this is fixed per # of + * iommu's. Ie. one for display block and one for gpu block. + * Eventually, to do per-process gpu pagetables, we'll want one + * of these per-process. + */ + unsigned int num_aspaces; + struct msm_gem_address_space *aspace[NUM_DOMAINS]; unsigned int num_planes; struct drm_plane *planes[8]; @@ -174,7 +180,18 @@ int msm_atomic_check(struct drm_device *dev, int msm_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, bool nonblock); -int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu); +int msm_register_address_space(struct drm_device *dev, + struct msm_gem_address_space *aspace); + +void msm_gem_unmap_vma(struct msm_gem_address_space *aspace, + struct msm_gem_vma *vma, struct sg_table *sgt); +int msm_gem_map_vma(struct msm_gem_address_space *aspace, + struct msm_gem_vma *vma, struct sg_table *sgt, int npages); + +void msm_gem_address_space_destroy(struct msm_gem_address_space *aspace); +struct msm_gem_address_space * +msm_gem_address_space_create(struct device *dev, struct iommu_domain *domain, + const char *name); void msm_gem_submit_free(struct msm_gem_submit *submit); int msm_ioctl_gem_submit(struct drm_device *dev, void *data, |