mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
a8c21a5451
This adds the etnaviv DRM driver and hooks it up in Makefiles and Kconfig. Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
|
|
* Copyright (C) 2015 Etnaviv Project
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published by
|
|
* the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __ETNAVIV_MMU_H__
|
|
#define __ETNAVIV_MMU_H__
|
|
|
|
#include <linux/iommu.h>
|
|
|
|
enum etnaviv_iommu_version {
|
|
ETNAVIV_IOMMU_V1 = 0,
|
|
ETNAVIV_IOMMU_V2,
|
|
};
|
|
|
|
struct etnaviv_gpu;
|
|
struct etnaviv_vram_mapping;
|
|
|
|
struct etnaviv_iommu_ops {
|
|
struct iommu_ops ops;
|
|
size_t (*dump_size)(struct iommu_domain *);
|
|
void (*dump)(struct iommu_domain *, void *);
|
|
};
|
|
|
|
struct etnaviv_iommu {
|
|
struct etnaviv_gpu *gpu;
|
|
struct iommu_domain *domain;
|
|
|
|
enum etnaviv_iommu_version version;
|
|
|
|
/* memory manager for GPU address area */
|
|
struct mutex lock;
|
|
struct list_head mappings;
|
|
struct drm_mm mm;
|
|
u32 last_iova;
|
|
bool need_flush;
|
|
};
|
|
|
|
struct etnaviv_gem_object;
|
|
|
|
int etnaviv_iommu_attach(struct etnaviv_iommu *iommu, const char **names,
|
|
int cnt);
|
|
int etnaviv_iommu_map(struct etnaviv_iommu *iommu, u32 iova,
|
|
struct sg_table *sgt, unsigned len, int prot);
|
|
int etnaviv_iommu_unmap(struct etnaviv_iommu *iommu, u32 iova,
|
|
struct sg_table *sgt, unsigned len);
|
|
int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu,
|
|
struct etnaviv_gem_object *etnaviv_obj, u32 memory_base,
|
|
struct etnaviv_vram_mapping *mapping);
|
|
void etnaviv_iommu_unmap_gem(struct etnaviv_iommu *mmu,
|
|
struct etnaviv_vram_mapping *mapping);
|
|
void etnaviv_iommu_destroy(struct etnaviv_iommu *iommu);
|
|
|
|
size_t etnaviv_iommu_dump_size(struct etnaviv_iommu *iommu);
|
|
void etnaviv_iommu_dump(struct etnaviv_iommu *iommu, void *buf);
|
|
|
|
struct etnaviv_iommu *etnaviv_iommu_new(struct etnaviv_gpu *gpu,
|
|
struct iommu_domain *domain, enum etnaviv_iommu_version version);
|
|
|
|
#endif /* __ETNAVIV_MMU_H__ */
|