1*d2912cb1SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2dee8268fSThierry Reding /* 3dee8268fSThierry Reding * Tegra host1x GEM implementation 4dee8268fSThierry Reding * 5dee8268fSThierry Reding * Copyright (c) 2012-2013, NVIDIA Corporation. 6dee8268fSThierry Reding */ 7dee8268fSThierry Reding 8dee8268fSThierry Reding #ifndef __HOST1X_GEM_H 9dee8268fSThierry Reding #define __HOST1X_GEM_H 10dee8268fSThierry Reding 11dee8268fSThierry Reding #include <linux/host1x.h> 12dee8268fSThierry Reding 13dee8268fSThierry Reding #include <drm/drm.h> 14dee8268fSThierry Reding #include <drm/drmP.h> 15d9fc9413SDaniel Vetter #include <drm/drm_gem.h> 16dee8268fSThierry Reding 17c134f019SThierry Reding #define TEGRA_BO_BOTTOM_UP (1 << 0) 18c134f019SThierry Reding 19c134f019SThierry Reding enum tegra_bo_tiling_mode { 20c134f019SThierry Reding TEGRA_BO_TILING_MODE_PITCH, 21c134f019SThierry Reding TEGRA_BO_TILING_MODE_TILED, 22c134f019SThierry Reding TEGRA_BO_TILING_MODE_BLOCK, 23c134f019SThierry Reding }; 24c134f019SThierry Reding 25c134f019SThierry Reding struct tegra_bo_tiling { 26c134f019SThierry Reding enum tegra_bo_tiling_mode mode; 27c134f019SThierry Reding unsigned long value; 28c134f019SThierry Reding }; 29773af77fSThierry Reding 30dee8268fSThierry Reding struct tegra_bo { 31dee8268fSThierry Reding struct drm_gem_object gem; 32dee8268fSThierry Reding struct host1x_bo base; 33773af77fSThierry Reding unsigned long flags; 343800391dSThierry Reding struct sg_table *sgt; 35dee8268fSThierry Reding dma_addr_t paddr; 36dee8268fSThierry Reding void *vaddr; 37c134f019SThierry Reding 38df06b759SThierry Reding struct drm_mm_node *mm; 39df06b759SThierry Reding unsigned long num_pages; 40df06b759SThierry Reding struct page **pages; 41df06b759SThierry Reding /* size of IOMMU mapping */ 42df06b759SThierry Reding size_t size; 43df06b759SThierry Reding 44c134f019SThierry Reding struct tegra_bo_tiling tiling; 45dee8268fSThierry Reding }; 46dee8268fSThierry Reding 47dee8268fSThierry Reding static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem) 48dee8268fSThierry Reding { 49dee8268fSThierry Reding return container_of(gem, struct tegra_bo, gem); 50dee8268fSThierry Reding } 51dee8268fSThierry Reding 52368f622cSDmitry Osipenko static inline struct tegra_bo *host1x_to_tegra_bo(struct host1x_bo *bo) 53368f622cSDmitry Osipenko { 54368f622cSDmitry Osipenko return container_of(bo, struct tegra_bo, base); 55368f622cSDmitry Osipenko } 56368f622cSDmitry Osipenko 5771c38629SThierry Reding struct tegra_bo *tegra_bo_create(struct drm_device *drm, size_t size, 58773af77fSThierry Reding unsigned long flags); 59dee8268fSThierry Reding struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file, 60dee8268fSThierry Reding struct drm_device *drm, 6171c38629SThierry Reding size_t size, 62773af77fSThierry Reding unsigned long flags, 6371c38629SThierry Reding u32 *handle); 64dee8268fSThierry Reding void tegra_bo_free_object(struct drm_gem_object *gem); 65dee8268fSThierry Reding int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm, 66dee8268fSThierry Reding struct drm_mode_create_dumb *args); 67dee8268fSThierry Reding 68dee8268fSThierry Reding extern const struct vm_operations_struct tegra_bo_vm_ops; 69dee8268fSThierry Reding 7004c07466SThierry Reding int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma); 71b6d7974dSThierry Reding int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma); 72b6d7974dSThierry Reding 733800391dSThierry Reding struct dma_buf *tegra_gem_prime_export(struct drm_device *drm, 743800391dSThierry Reding struct drm_gem_object *gem, 753800391dSThierry Reding int flags); 763800391dSThierry Reding struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm, 773800391dSThierry Reding struct dma_buf *buf); 783800391dSThierry Reding 79dee8268fSThierry Reding #endif 80