7b6f846785
Tegra194 has a special physical address bit that enables some memory swizzling logic to support different sector layouts. Support the bit that selects the sector layout which is passed in the framebuffer modifier. Signed-off-by: Thierry Reding <treding@nvidia.com>
84 lines
2.0 KiB
C
84 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Tegra host1x GEM implementation
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*
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* Copyright (c) 2012-2013, NVIDIA Corporation.
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*/
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#ifndef __HOST1X_GEM_H
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#define __HOST1X_GEM_H
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#include <linux/host1x.h>
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#include <drm/drm.h>
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#include <drm/drm_gem.h>
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#define TEGRA_BO_BOTTOM_UP (1 << 0)
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enum tegra_bo_tiling_mode {
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TEGRA_BO_TILING_MODE_PITCH,
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TEGRA_BO_TILING_MODE_TILED,
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TEGRA_BO_TILING_MODE_BLOCK,
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};
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enum tegra_bo_sector_layout {
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TEGRA_BO_SECTOR_LAYOUT_TEGRA,
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TEGRA_BO_SECTOR_LAYOUT_GPU,
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};
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struct tegra_bo_tiling {
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enum tegra_bo_tiling_mode mode;
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unsigned long value;
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enum tegra_bo_sector_layout sector_layout;
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};
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struct tegra_bo {
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struct drm_gem_object gem;
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struct host1x_bo base;
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unsigned long flags;
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struct sg_table *sgt;
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dma_addr_t iova;
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void *vaddr;
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struct drm_mm_node *mm;
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unsigned long num_pages;
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struct page **pages;
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/* size of IOMMU mapping */
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size_t size;
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struct tegra_bo_tiling tiling;
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};
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static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
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{
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return container_of(gem, struct tegra_bo, gem);
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}
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static inline struct tegra_bo *host1x_to_tegra_bo(struct host1x_bo *bo)
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{
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return container_of(bo, struct tegra_bo, base);
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}
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struct tegra_bo *tegra_bo_create(struct drm_device *drm, size_t size,
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unsigned long flags);
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struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
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struct drm_device *drm,
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size_t size,
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unsigned long flags,
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u32 *handle);
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void tegra_bo_free_object(struct drm_gem_object *gem);
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int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
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struct drm_mode_create_dumb *args);
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extern const struct vm_operations_struct tegra_bo_vm_ops;
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int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma);
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int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);
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struct dma_buf *tegra_gem_prime_export(struct drm_gem_object *gem,
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int flags);
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struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
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struct dma_buf *buf);
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#endif
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