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78babc1633
For a5xx the gpu is 64b so we need to change iova to 64b everywhere. On the display side, iova is still 32b so it can ignore the upper bits. (Although all the armv8 devices have an iommu that can map 64b pa to 32b iova.) Signed-off-by: Rob Clark <robdclark@gmail.com>
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MSM_MMU_H__
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#define __MSM_MMU_H__
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#include <linux/iommu.h>
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struct msm_mmu_funcs {
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int (*attach)(struct msm_mmu *mmu, const char * const *names, int cnt);
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void (*detach)(struct msm_mmu *mmu, const char * const *names, int cnt);
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int (*map)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt,
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unsigned len, int prot);
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int (*unmap)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt,
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unsigned len);
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void (*destroy)(struct msm_mmu *mmu);
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};
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struct msm_mmu {
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const struct msm_mmu_funcs *funcs;
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struct device *dev;
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};
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static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev,
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const struct msm_mmu_funcs *funcs)
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{
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mmu->dev = dev;
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mmu->funcs = funcs;
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}
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struct msm_mmu *msm_iommu_new(struct device *dev, struct iommu_domain *domain);
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struct msm_mmu *msm_gpummu_new(struct device *dev, struct msm_gpu *gpu);
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#endif /* __MSM_MMU_H__ */
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