drivers/gpu/drm/radeon/radeon_object.h - linux - Git at Google

 /*
  * Copyright 2008 Advanced Micro Devices, Inc.
  * Copyright 2008 Red Hat Inc.
  * Copyright 2009 Jerome Glisse.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors: Dave Airlie
  *          Alex Deucher
  *          Jerome Glisse
  */
 #ifndef __RADEON_OBJECT_H__
 #define __RADEON_OBJECT_H__

 #include <drm/radeon_drm.h>
 #include "radeon.h"

 /**
  * radeon_mem_type_to_domain - return domain corresponding to mem_type
  * @mem_type:	ttm memory type
  *
  * Returns corresponding domain of the ttm mem_type
  */
 static inline unsigned radeon_mem_type_to_domain(u32 mem_type)
 {
 	switch (mem_type) {
 	case TTM_PL_VRAM:
 		return RADEON_GEM_DOMAIN_VRAM;
 	case TTM_PL_TT:
 		return RADEON_GEM_DOMAIN_GTT;
 	case TTM_PL_SYSTEM:
 		return RADEON_GEM_DOMAIN_CPU;
 	default:
 		break;
 	}
 	return 0;
 }

 /**
  * radeon_bo_reserve - reserve bo
  * @bo:		bo structure
  * @no_intr:	don't return -ERESTARTSYS on pending signal
  *
  * Returns:
  * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
  * a signal. Release all buffer reservations and return to user-space.
  */
 static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_intr)
 {
 	int r;

 	r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
 	if (unlikely(r != 0)) {
 		if (r != -ERESTARTSYS)
 			dev_err(bo->rdev->dev, "%p reserve failed\n", bo);
 		return r;
 	}
 	return 0;
 }

 static inline void radeon_bo_unreserve(struct radeon_bo *bo)
 {
 	ttm_bo_unreserve(&bo->tbo);
 }

 /**
  * radeon_bo_gpu_offset - return GPU offset of bo
  * @bo:	radeon object for which we query the offset
  *
  * Returns current GPU offset of the object.
  *
  * Note: object should either be pinned or reserved when calling this
  * function, it might be useful to add check for this for debugging.
  */
 static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
 {
 	struct radeon_device *rdev;
 	u64 start = 0;

 	rdev = radeon_get_rdev(bo->tbo.bdev);

 	switch (bo->tbo.resource->mem_type) {
 	case TTM_PL_TT:
 		start = rdev->mc.gtt_start;
 		break;
 	case TTM_PL_VRAM:
 		start = rdev->mc.vram_start;
 		break;
 	}

 	return (bo->tbo.resource->start << PAGE_SHIFT) + start;
 }

 static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
 {
 	return bo->tbo.base.size;
 }

 static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
 {
 	return bo->tbo.base.size / RADEON_GPU_PAGE_SIZE;
 }

 static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
 {
 	return (bo->tbo.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
 }

 /**
  * radeon_bo_mmap_offset - return mmap offset of bo
  * @bo:	radeon object for which we query the offset
  *
  * Returns mmap offset of the object.
  */
 static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
 {
 	return drm_vma_node_offset_addr(&bo->tbo.base.vma_node);
 }

 extern int radeon_bo_create(struct radeon_device *rdev,
 			    unsigned long size, int byte_align,
 			    bool kernel, u32 domain, u32 flags,
 			    struct sg_table *sg,
 			    struct dma_resv *resv,
 			    struct radeon_bo **bo_ptr);
 extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
 extern void radeon_bo_kunmap(struct radeon_bo *bo);
 extern struct radeon_bo *radeon_bo_ref(struct radeon_bo *bo);
 extern void radeon_bo_unref(struct radeon_bo **bo);
 extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
 extern int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain,
 				    u64 max_offset, u64 *gpu_addr);
 extern void radeon_bo_unpin(struct radeon_bo *bo);
 extern int radeon_bo_evict_vram(struct radeon_device *rdev);
 extern void radeon_bo_force_delete(struct radeon_device *rdev);
 extern int radeon_bo_init(struct radeon_device *rdev);
 extern void radeon_bo_fini(struct radeon_device *rdev);
 extern int radeon_bo_list_validate(struct radeon_device *rdev,
 				   struct ww_acquire_ctx *ticket,
 				   struct list_head *head, int ring);
 extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
 				u32 tiling_flags, u32 pitch);
 extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
 				u32 *tiling_flags, u32 *pitch);
 extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
 				bool force_drop);
 extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
 				  unsigned int old_type,
 				  struct ttm_resource *new_mem);
 extern vm_fault_t radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
 extern void radeon_bo_fence(struct radeon_bo *bo, struct radeon_fence *fence,
 			    bool shared);

 /*
  * sub allocation
  */

 static inline uint64_t radeon_sa_bo_gpu_addr(struct radeon_sa_bo *sa_bo)
 {
 	return sa_bo->manager->gpu_addr + sa_bo->soffset;
 }

 static inline void * radeon_sa_bo_cpu_addr(struct radeon_sa_bo *sa_bo)
 {
 	return sa_bo->manager->cpu_ptr + sa_bo->soffset;
 }

 extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
 				     struct radeon_sa_manager *sa_manager,
 				     unsigned size, u32 align, u32 domain,
 				     u32 flags);
 extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
 				      struct radeon_sa_manager *sa_manager);
 extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
 				      struct radeon_sa_manager *sa_manager);
 extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
 					struct radeon_sa_manager *sa_manager);
 extern int radeon_sa_bo_new(struct radeon_device *rdev,
 			    struct radeon_sa_manager *sa_manager,
 			    struct radeon_sa_bo **sa_bo,
 			    unsigned size, unsigned align);
 extern void radeon_sa_bo_free(struct radeon_device *rdev,
 			      struct radeon_sa_bo **sa_bo,
 			      struct radeon_fence *fence);
 #if defined(CONFIG_DEBUG_FS)
 extern void radeon_sa_bo_dump_debug_info(struct radeon_sa_manager *sa_manager,
 					 struct seq_file *m);
 #endif


 #endif
	/*
	* Copyright 2008 Advanced Micro Devices, Inc.
	* Copyright 2008 Red Hat Inc.
	* Copyright 2009 Jerome Glisse.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	* Authors: Dave Airlie
	* Alex Deucher
	* Jerome Glisse
	*/
	#ifndef __RADEON_OBJECT_H__
	#define __RADEON_OBJECT_H__

	#include <drm/radeon_drm.h>
	#include "radeon.h"

	/**
	* radeon_mem_type_to_domain - return domain corresponding to mem_type
	* @mem_type: ttm memory type
	*
	* Returns corresponding domain of the ttm mem_type
	*/
	static inline unsigned radeon_mem_type_to_domain(u32 mem_type)
	{
	switch (mem_type) {
	case TTM_PL_VRAM:
	return RADEON_GEM_DOMAIN_VRAM;
	case TTM_PL_TT:
	return RADEON_GEM_DOMAIN_GTT;
	case TTM_PL_SYSTEM:
	return RADEON_GEM_DOMAIN_CPU;
	default:
	break;
	}
	return 0;
	}

	/**
	* radeon_bo_reserve - reserve bo
	* @bo: bo structure
	* @no_intr: don't return -ERESTARTSYS on pending signal
	*
	* Returns:
	* -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
	* a signal. Release all buffer reservations and return to user-space.
	*/
	static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_intr)
	{
	int r;

	r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
	if (unlikely(r != 0)) {
	if (r != -ERESTARTSYS)
	dev_err(bo->rdev->dev, "%p reserve failed\n", bo);
	return r;
	}
	return 0;
	}

	static inline void radeon_bo_unreserve(struct radeon_bo *bo)
	{
	ttm_bo_unreserve(&bo->tbo);
	}

	/**
	* radeon_bo_gpu_offset - return GPU offset of bo
	* @bo: radeon object for which we query the offset
	*
	* Returns current GPU offset of the object.
	*
	* Note: object should either be pinned or reserved when calling this
	* function, it might be useful to add check for this for debugging.
	*/
	static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
	{
	struct radeon_device *rdev;
	u64 start = 0;

	rdev = radeon_get_rdev(bo->tbo.bdev);

	switch (bo->tbo.resource->mem_type) {
	case TTM_PL_TT:
	start = rdev->mc.gtt_start;
	break;
	case TTM_PL_VRAM:
	start = rdev->mc.vram_start;
	break;
	}

	return (bo->tbo.resource->start << PAGE_SHIFT) + start;
	}

	static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
	{
	return bo->tbo.base.size;
	}

	static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
	{
	return bo->tbo.base.size / RADEON_GPU_PAGE_SIZE;
	}

	static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
	{
	return (bo->tbo.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
	}

	/**
	* radeon_bo_mmap_offset - return mmap offset of bo
	* @bo: radeon object for which we query the offset
	*
	* Returns mmap offset of the object.
	*/
	static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
	{
	return drm_vma_node_offset_addr(&bo->tbo.base.vma_node);
	}

	extern int radeon_bo_create(struct radeon_device *rdev,
	unsigned long size, int byte_align,
	bool kernel, u32 domain, u32 flags,
	struct sg_table *sg,
	struct dma_resv *resv,
	struct radeon_bo **bo_ptr);
	extern int radeon_bo_kmap(struct radeon_bo bo, void *ptr);
	extern void radeon_bo_kunmap(struct radeon_bo *bo);
	extern struct radeon_bo radeon_bo_ref(struct radeon_bo bo);
	extern void radeon_bo_unref(struct radeon_bo **bo);
	extern int radeon_bo_pin(struct radeon_bo bo, u32 domain, u64 gpu_addr);
	extern int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain,
	u64 max_offset, u64 *gpu_addr);
	extern void radeon_bo_unpin(struct radeon_bo *bo);
	extern int radeon_bo_evict_vram(struct radeon_device *rdev);
	extern void radeon_bo_force_delete(struct radeon_device *rdev);
	extern int radeon_bo_init(struct radeon_device *rdev);
	extern void radeon_bo_fini(struct radeon_device *rdev);
	extern int radeon_bo_list_validate(struct radeon_device *rdev,
	struct ww_acquire_ctx *ticket,
	struct list_head *head, int ring);
	extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
	u32 tiling_flags, u32 pitch);
	extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
	u32 tiling_flags, u32 pitch);
	extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
	bool force_drop);
	extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
	unsigned int old_type,
	struct ttm_resource *new_mem);
	extern vm_fault_t radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
	extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
	extern void radeon_bo_fence(struct radeon_bo bo, struct radeon_fence fence,
	bool shared);

	/*
	* sub allocation
	*/

	static inline uint64_t radeon_sa_bo_gpu_addr(struct radeon_sa_bo *sa_bo)
	{
	return sa_bo->manager->gpu_addr + sa_bo->soffset;
	}

	static inline void * radeon_sa_bo_cpu_addr(struct radeon_sa_bo *sa_bo)
	{
	return sa_bo->manager->cpu_ptr + sa_bo->soffset;
	}

	extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
	struct radeon_sa_manager *sa_manager,
	unsigned size, u32 align, u32 domain,
	u32 flags);
	extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
	struct radeon_sa_manager *sa_manager);
	extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
	struct radeon_sa_manager *sa_manager);
	extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
	struct radeon_sa_manager *sa_manager);
	extern int radeon_sa_bo_new(struct radeon_device *rdev,
	struct radeon_sa_manager *sa_manager,
	struct radeon_sa_bo **sa_bo,
	unsigned size, unsigned align);
	extern void radeon_sa_bo_free(struct radeon_device *rdev,
	struct radeon_sa_bo **sa_bo,
	struct radeon_fence *fence);
	#if defined(CONFIG_DEBUG_FS)
	extern void radeon_sa_bo_dump_debug_info(struct radeon_sa_manager *sa_manager,
	struct seq_file *m);
	#endif


	#endif