3709853456
This change brings msm display driver including sde, dp, dsi, rotator, dsi pll and dp pll from base 4.19 kernel project. It is first source code snapshot from base kernel project. Change-Id: Iec864c064ce5ea04e170f24414c728684002f284 Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
89 lines
2.8 KiB
C
89 lines
2.8 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;
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enum msm_mmu_domain_type {
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MSM_SMMU_DOMAIN_UNSECURE,
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MSM_SMMU_DOMAIN_NRT_UNSECURE,
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MSM_SMMU_DOMAIN_SECURE,
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MSM_SMMU_DOMAIN_NRT_SECURE,
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MSM_SMMU_DOMAIN_MAX,
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};
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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 int 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 int len);
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int (*map_sg)(struct msm_mmu *mmu, struct sg_table *sgt,
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enum dma_data_direction dir);
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void (*unmap_sg)(struct msm_mmu *mmu, struct sg_table *sgt,
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enum dma_data_direction dir);
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int (*map_dma_buf)(struct msm_mmu *mmu, struct sg_table *sgt,
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int dir, u32 flags);
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void (*unmap_dma_buf)(struct msm_mmu *mmu, struct sg_table *sgt,
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int dir, u32 flags);
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void (*destroy)(struct msm_mmu *mmu);
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bool (*is_domain_secure)(struct msm_mmu *mmu);
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int (*set_attribute)(struct msm_mmu *mmu,
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enum iommu_attr attr, void *data);
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int (*one_to_one_map)(struct msm_mmu *mmu, uint32_t iova,
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uint32_t dest_address, uint32_t size, int prot);
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int (*one_to_one_unmap)(struct msm_mmu *mmu, uint32_t dest_address,
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uint32_t size);
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struct device *(*get_dev)(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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int (*handler)(void *arg, unsigned long iova, int flags);
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void *arg;
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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_smmu_new(struct device *dev,
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enum msm_mmu_domain_type domain);
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static inline void msm_mmu_set_fault_handler(struct msm_mmu *mmu, void *arg,
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int (*handler)(void *arg, unsigned long iova, int flags))
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{
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mmu->arg = arg;
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mmu->handler = handler;
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}
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/* SDE smmu driver initialize and cleanup functions */
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int __init msm_smmu_driver_init(void);
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void __exit msm_smmu_driver_cleanup(void);
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#endif /* __MSM_MMU_H__ */
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