linux/drivers/gpu/drm/radeon/radeon_gem.c

/*
 * 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
 */

#include <linux/debugfs.h>
#include <linux/iosys-map.h>
#include <linux/pci.h>

#include <drm/drm_device.h>
#include <drm/drm_file.h>
#include <drm/drm_gem_ttm_helper.h>
#include <drm/radeon_drm.h>

#include "radeon.h"
#include "radeon_prime.h"

struct dma_buf *radeon_gem_prime_export(struct drm_gem_object *gobj,
					int flags);
struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj);
int radeon_gem_prime_pin(struct drm_gem_object *obj);
void radeon_gem_prime_unpin(struct drm_gem_object *obj);

const struct drm_gem_object_funcs radeon_gem_object_funcs;

static vm_fault_t radeon_gem_fault(struct vm_fault *vmf)
{ … }

static const struct vm_operations_struct radeon_gem_vm_ops = …;

static void radeon_gem_object_free(struct drm_gem_object *gobj)
{ … }

int radeon_gem_object_create(struct radeon_device *rdev, unsigned long size,
				int alignment, int initial_domain,
				u32 flags, bool kernel,
				struct drm_gem_object **obj)
{ … }

static int radeon_gem_set_domain(struct drm_gem_object *gobj,
			  uint32_t rdomain, uint32_t wdomain)
{ … }

int radeon_gem_init(struct radeon_device *rdev)
{ … }

void radeon_gem_fini(struct radeon_device *rdev)
{ … }

/*
 * Call from drm_gem_handle_create which appear in both new and open ioctl
 * case.
 */
static int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
{ … }

static void radeon_gem_object_close(struct drm_gem_object *obj,
				    struct drm_file *file_priv)
{ … }

static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r)
{ … }

static int radeon_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
{ … }

const struct drm_gem_object_funcs radeon_gem_object_funcs = …;

/*
 * GEM ioctls.
 */
int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *filp)
{ … }

int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
			    struct drm_file *filp)
{ … }

int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
			     struct drm_file *filp)
{ … }

int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
				struct drm_file *filp)
{ … }

int radeon_mode_dumb_mmap(struct drm_file *filp,
			  struct drm_device *dev,
			  uint32_t handle, uint64_t *offset_p)
{ … }

int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *filp)
{ … }

int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *filp)
{ … }

int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
			      struct drm_file *filp)
{ … }

int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
				struct drm_file *filp)
{ … }

int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
				struct drm_file *filp)
{ … }

/**
 * radeon_gem_va_update_vm -update the bo_va in its VM
 *
 * @rdev: radeon_device pointer
 * @bo_va: bo_va to update
 *
 * Update the bo_va directly after setting it's address. Errors are not
 * vital here, so they are not reported back to userspace.
 */
static void radeon_gem_va_update_vm(struct radeon_device *rdev,
				    struct radeon_bo_va *bo_va)
{ … }

int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *filp)
{ … }

int radeon_gem_op_ioctl(struct drm_device *dev, void *data,
			struct drm_file *filp)
{ … }

int radeon_align_pitch(struct radeon_device *rdev, int width, int cpp, bool tiled)
{ … }

int radeon_mode_dumb_create(struct drm_file *file_priv,
			    struct drm_device *dev,
			    struct drm_mode_create_dumb *args)
{ … }

#if defined(CONFIG_DEBUG_FS)
static int radeon_debugfs_gem_info_show(struct seq_file *m, void *unused)
{ … }

DEFINE_SHOW_ATTRIBUTE(…);
#endif

void radeon_gem_debugfs_init(struct radeon_device *rdev)
{ … }