52da6d5131
Everywhere an IOMMU object is created by msm_gpu_create_address_space the IOMMU device is attached immediately after. Instead of carrying around the infrastructure to do the attach from the device specific code do it directly in the msm_iommu_init() function. This gets it out of the way for more aggressive cleanups that follow. Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Tested-by: Shawn Guo <shawn.guo@linaro.org> [squash in rebase fixups and fix for unused fxn] Signed-off-by: Rob Clark <robdclark@chromium.org>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) 2013 Red Hat
|
|
* Author: Rob Clark <robdclark@gmail.com>
|
|
*/
|
|
|
|
#ifndef __MSM_MMU_H__
|
|
#define __MSM_MMU_H__
|
|
|
|
#include <linux/iommu.h>
|
|
|
|
struct msm_mmu_funcs {
|
|
void (*detach)(struct msm_mmu *mmu);
|
|
int (*map)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt,
|
|
unsigned len, int prot);
|
|
int (*unmap)(struct msm_mmu *mmu, uint64_t iova, unsigned len);
|
|
void (*destroy)(struct msm_mmu *mmu);
|
|
};
|
|
|
|
struct msm_mmu {
|
|
const struct msm_mmu_funcs *funcs;
|
|
struct device *dev;
|
|
int (*handler)(void *arg, unsigned long iova, int flags);
|
|
void *arg;
|
|
};
|
|
|
|
static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev,
|
|
const struct msm_mmu_funcs *funcs)
|
|
{
|
|
mmu->dev = dev;
|
|
mmu->funcs = funcs;
|
|
}
|
|
|
|
struct msm_mmu *msm_iommu_new(struct device *dev, struct iommu_domain *domain);
|
|
struct msm_mmu *msm_gpummu_new(struct device *dev, struct msm_gpu *gpu);
|
|
|
|
static inline void msm_mmu_set_fault_handler(struct msm_mmu *mmu, void *arg,
|
|
int (*handler)(void *arg, unsigned long iova, int flags))
|
|
{
|
|
mmu->arg = 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__ */
|