radeon_ttm.c | Explore in Territory

/*
 * Copyright 2009 Jerome Glisse.
 * All Rights Reserved.
 *
 * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 */
/*
 * Authors:
 *    Jerome Glisse <[email protected]>
 *    Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
 *    Dave Airlie
 */

#include <linux/debugfs.h>
#include <linux/dma-mapping.h>
#include <linux/pagemap.h>
#include <linux/pci.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/swap.h>

#include <drm/drm_device.h>
#include <drm/drm_file.h>
#include <drm/drm_prime.h>
#include <drm/radeon_drm.h>
#include <drm/ttm/ttm_bo.h>
#include <drm/ttm/ttm_placement.h>
#include <drm/ttm/ttm_range_manager.h>
#include <drm/ttm/ttm_tt.h>

#include "radeon_reg.h"
#include "radeon.h"
#include "radeon_ttm.h"

static void radeon_ttm_debugfs_init(struct radeon_device *rdev);

static int radeon_ttm_tt_bind(struct ttm_device *bdev, struct ttm_tt *ttm,
			      struct ttm_resource *bo_mem);
static void radeon_ttm_tt_unbind(struct ttm_device *bdev, struct ttm_tt *ttm);

struct radeon_device *radeon_get_rdev(struct ttm_device *bdev)
{ … }

static int radeon_ttm_init_vram(struct radeon_device *rdev)
{ … }

static int radeon_ttm_init_gtt(struct radeon_device *rdev)
{ … }

static void radeon_evict_flags(struct ttm_buffer_object *bo,
				struct ttm_placement *placement)
{ … }

static int radeon_move_blit(struct ttm_buffer_object *bo,
			bool evict,
			struct ttm_resource *new_mem,
			struct ttm_resource *old_mem)
{ … }

static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
			  struct ttm_operation_ctx *ctx,
			  struct ttm_resource *new_mem,
			  struct ttm_place *hop)
{ … }

static int radeon_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *mem)
{ … }

/*
 * TTM backend functions.
 */
struct radeon_ttm_tt { … };

/* prepare the sg table with the user pages */
static int radeon_ttm_tt_pin_userptr(struct ttm_device *bdev, struct ttm_tt *ttm)
{ … }

static void radeon_ttm_tt_unpin_userptr(struct ttm_device *bdev, struct ttm_tt *ttm)
{ … }

static bool radeon_ttm_backend_is_bound(struct ttm_tt *ttm)
{ … }

static int radeon_ttm_backend_bind(struct ttm_device *bdev,
				   struct ttm_tt *ttm,
				   struct ttm_resource *bo_mem)
{ … }

static void radeon_ttm_backend_unbind(struct ttm_device *bdev, struct ttm_tt *ttm)
{ … }

static void radeon_ttm_backend_destroy(struct ttm_device *bdev, struct ttm_tt *ttm)
{ … }

static struct ttm_tt *radeon_ttm_tt_create(struct ttm_buffer_object *bo,
					   uint32_t page_flags)
{ … }

static struct radeon_ttm_tt *radeon_ttm_tt_to_gtt(struct radeon_device *rdev,
						  struct ttm_tt *ttm)
{ … }

static int radeon_ttm_tt_populate(struct ttm_device *bdev,
				  struct ttm_tt *ttm,
				  struct ttm_operation_ctx *ctx)
{ … }

static void radeon_ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm)
{ … }

int radeon_ttm_tt_set_userptr(struct radeon_device *rdev,
			      struct ttm_tt *ttm, uint64_t addr,
			      uint32_t flags)
{ … }

bool radeon_ttm_tt_is_bound(struct ttm_device *bdev,
			    struct ttm_tt *ttm)
{ … }

static int radeon_ttm_tt_bind(struct ttm_device *bdev,
			      struct ttm_tt *ttm,
			      struct ttm_resource *bo_mem)
{ … }

static void radeon_ttm_tt_unbind(struct ttm_device *bdev,
				 struct ttm_tt *ttm)
{ … }

static void radeon_ttm_tt_destroy(struct ttm_device *bdev,
				  struct ttm_tt *ttm)
{ … }

bool radeon_ttm_tt_has_userptr(struct radeon_device *rdev,
			       struct ttm_tt *ttm)
{ … }

bool radeon_ttm_tt_is_readonly(struct radeon_device *rdev,
			       struct ttm_tt *ttm)
{ … }

static struct ttm_device_funcs radeon_bo_driver = …;

int radeon_ttm_init(struct radeon_device *rdev)
{ … }

void radeon_ttm_fini(struct radeon_device *rdev)
{ … }

/* this should only be called at bootup or when userspace
 * isn't running */
void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
{ … }

#if defined(CONFIG_DEBUG_FS)

static int radeon_ttm_page_pool_show(struct seq_file *m, void *data)
{ … }

DEFINE_SHOW_ATTRIBUTE(…);

static int radeon_ttm_vram_open(struct inode *inode, struct file *filep)
{ … }

static ssize_t radeon_ttm_vram_read(struct file *f, char __user *buf,
				    size_t size, loff_t *pos)
{ … }

static const struct file_operations radeon_ttm_vram_fops = …;

static int radeon_ttm_gtt_open(struct inode *inode, struct file *filep)
{ … }

static ssize_t radeon_ttm_gtt_read(struct file *f, char __user *buf,
				   size_t size, loff_t *pos)
{ … }

static const struct file_operations radeon_ttm_gtt_fops = …;

#endif

static void radeon_ttm_debugfs_init(struct radeon_device *rdev)
{ … }
linux/drivers/gpu/drm/radeon/radeon_ttm.c
