disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/msm/msm_mmu.h
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@@ -1,18 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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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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@@ -21,13 +10,17 @@
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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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+	void (*detach)(struct msm_mmu *mmu);
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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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+			size_t len, int prot);
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+	int (*unmap)(struct msm_mmu *mmu, uint64_t iova, size_t len);
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 	void (*destroy)(struct msm_mmu *mmu);
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+};
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+
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+enum msm_mmu_type {
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+	MSM_MMU_GPUMMU,
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+	MSM_MMU_IOMMU,
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+	MSM_MMU_IOMMU_PAGETABLE,
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 };
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 struct msm_mmu {
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@@ -35,13 +28,15 @@
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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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+	enum msm_mmu_type type;
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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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+		const struct msm_mmu_funcs *funcs, enum msm_mmu_type type)
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 {
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 	mmu->dev = dev;
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 	mmu->funcs = funcs;
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+	mmu->type = type;
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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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@@ -54,4 +49,13 @@
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 	mmu->handler = handler;
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 }
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+struct msm_mmu *msm_iommu_pagetable_create(struct msm_mmu *parent);
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+
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+void msm_gpummu_params(struct msm_mmu *mmu, dma_addr_t *pt_base,
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+		dma_addr_t *tran_error);
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+
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+
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+int msm_iommu_pagetable_params(struct msm_mmu *mmu, phys_addr_t *ttbr,
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+		int *asid);
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+
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 #endif /* __MSM_MMU_H__ */