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drm/msm: implement a2xx mmu

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A2XX has its own very simple MMU.

Added a msm_use_mmu() function because we can't rely on iommu_present to
decide to use MMU or not.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jonathan Marek
2018-11-14 17:08:04 -05:00
committed by Rob Clark
parent d1d9d0e172
commit c2052a4e5c
11 changed files with 240 additions and 18 deletions
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3
drivers/gpu/drm/msm/msm_mmu.h
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@@ -53,4 +53,7 @@ static inline void msm_mmu_set_fault_handler(struct msm_mmu *mmu, void *arg,
mmu->handler = handler;
}
void msm_gpummu_params(struct msm_mmu *mmu, dma_addr_t *pt_base,
dma_addr_t *tran_error);
#endif /* __MSM_MMU_H__ */