diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_gem.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 627 |
1 files changed, 627 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c new file mode 100644 index 0000000..aa79603 --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -0,0 +1,627 @@ +/* + * 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 <drm/drmP.h> +#include <drm/radeon_drm.h> +#include "radeon.h" + +int radeon_gem_object_init(struct drm_gem_object *obj) +{ + BUG(); + + return 0; +} + +void radeon_gem_object_free(struct drm_gem_object *gobj) +{ + struct radeon_bo *robj = gem_to_radeon_bo(gobj); + + if (robj) { + if (robj->gem_base.import_attach) + drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); + radeon_bo_unref(&robj); + } +} + +int radeon_gem_object_create(struct radeon_device *rdev, int size, + int alignment, int initial_domain, + bool discardable, bool kernel, + struct drm_gem_object **obj) +{ + struct radeon_bo *robj; + unsigned long max_size; + int r; + + *obj = NULL; + /* At least align on page size */ + if (alignment < PAGE_SIZE) { + alignment = PAGE_SIZE; + } + + /* maximun bo size is the minimun btw visible vram and gtt size */ + max_size = min(rdev->mc.visible_vram_size, rdev->mc.gtt_size); + if (size > max_size) { + printk(KERN_WARNING "%s:%d alloc size %dMb bigger than %ldMb limit\n", + __func__, __LINE__, size >> 20, max_size >> 20); + return -ENOMEM; + } + +retry: + r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, NULL, &robj); + if (r) { + if (r != -ERESTARTSYS) { + if (initial_domain == RADEON_GEM_DOMAIN_VRAM) { + initial_domain |= RADEON_GEM_DOMAIN_GTT; + goto retry; + } + DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", + size, initial_domain, alignment, r); + } + return r; + } + *obj = &robj->gem_base; + robj->pid = task_pid_nr(current); + + mutex_lock(&rdev->gem.mutex); + list_add_tail(&robj->list, &rdev->gem.objects); + mutex_unlock(&rdev->gem.mutex); + + return 0; +} + +int radeon_gem_set_domain(struct drm_gem_object *gobj, + uint32_t rdomain, uint32_t wdomain) +{ + struct radeon_bo *robj; + uint32_t domain; + int r; + + /* FIXME: reeimplement */ + robj = gem_to_radeon_bo(gobj); + /* work out where to validate the buffer to */ + domain = wdomain; + if (!domain) { + domain = rdomain; + } + if (!domain) { + /* Do nothings */ + printk(KERN_WARNING "Set domain without domain !\n"); + return 0; + } + if (domain == RADEON_GEM_DOMAIN_CPU) { + /* Asking for cpu access wait for object idle */ + r = radeon_bo_wait(robj, NULL, false); + if (r) { + printk(KERN_ERR "Failed to wait for object !\n"); + return r; + } + } + return 0; +} + +int radeon_gem_init(struct radeon_device *rdev) +{ + INIT_LIST_HEAD(&rdev->gem.objects); + return 0; +} + +void radeon_gem_fini(struct radeon_device *rdev) +{ + radeon_bo_force_delete(rdev); +} + +/* + * Call from drm_gem_handle_create which appear in both new and open ioctl + * case. + */ +int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv) +{ + struct radeon_bo *rbo = gem_to_radeon_bo(obj); + struct radeon_device *rdev = rbo->rdev; + struct radeon_fpriv *fpriv = file_priv->driver_priv; + struct radeon_vm *vm = &fpriv->vm; + struct radeon_bo_va *bo_va; + int r; + + if (rdev->family < CHIP_CAYMAN) { + return 0; + } + + r = radeon_bo_reserve(rbo, false); + if (r) { + return r; + } + + bo_va = radeon_vm_bo_find(vm, rbo); + if (!bo_va) { + bo_va = radeon_vm_bo_add(rdev, vm, rbo); + } else { + ++bo_va->ref_count; + } + radeon_bo_unreserve(rbo); + + return 0; +} + +void radeon_gem_object_close(struct drm_gem_object *obj, + struct drm_file *file_priv) +{ + struct radeon_bo *rbo = gem_to_radeon_bo(obj); + struct radeon_device *rdev = rbo->rdev; + struct radeon_fpriv *fpriv = file_priv->driver_priv; + struct radeon_vm *vm = &fpriv->vm; + struct radeon_bo_va *bo_va; + int r; + + if (rdev->family < CHIP_CAYMAN) { + return; + } + + r = radeon_bo_reserve(rbo, true); + if (r) { + dev_err(rdev->dev, "leaking bo va because " + "we fail to reserve bo (%d)\n", r); + return; + } + bo_va = radeon_vm_bo_find(vm, rbo); + if (bo_va) { + if (--bo_va->ref_count == 0) { + radeon_vm_bo_rmv(rdev, bo_va); + } + } + radeon_bo_unreserve(rbo); +} + +static int radeon_gem_handle_lockup(struct radeon_device *rdev, int r) +{ + if (r == -EDEADLK) { + r = radeon_gpu_reset(rdev); + if (!r) + r = -EAGAIN; + } + return r; +} + +/* + * GEM ioctls. + */ +int radeon_gem_info_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct radeon_device *rdev = dev->dev_private; + struct drm_radeon_gem_info *args = data; + struct ttm_mem_type_manager *man; + unsigned i; + + man = &rdev->mman.bdev.man[TTM_PL_VRAM]; + + args->vram_size = rdev->mc.real_vram_size; + args->vram_visible = (u64)man->size << PAGE_SHIFT; + if (rdev->stollen_vga_memory) + args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); + args->vram_visible -= radeon_fbdev_total_size(rdev); + args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024; + for(i = 0; i < RADEON_NUM_RINGS; ++i) + args->gart_size -= rdev->ring[i].ring_size; + return 0; +} + +int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + /* TODO: implement */ + DRM_ERROR("unimplemented %s\n", __func__); + return -ENOSYS; +} + +int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + /* TODO: implement */ + DRM_ERROR("unimplemented %s\n", __func__); + return -ENOSYS; +} + +int radeon_gem_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct radeon_device *rdev = dev->dev_private; + struct drm_radeon_gem_create *args = data; + struct drm_gem_object *gobj; + uint32_t handle; + int r; + + down_read(&rdev->exclusive_lock); + /* create a gem object to contain this object in */ + args->size = roundup(args->size, PAGE_SIZE); + r = radeon_gem_object_create(rdev, args->size, args->alignment, + args->initial_domain, false, + false, &gobj); + if (r) { + up_read(&rdev->exclusive_lock); + r = radeon_gem_handle_lockup(rdev, r); + return r; + } + r = drm_gem_handle_create(filp, gobj, &handle); + /* drop reference from allocate - handle holds it now */ + drm_gem_object_unreference_unlocked(gobj); + if (r) { + up_read(&rdev->exclusive_lock); + r = radeon_gem_handle_lockup(rdev, r); + return r; + } + args->handle = handle; + up_read(&rdev->exclusive_lock); + return 0; +} + +int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + /* transition the BO to a domain - + * just validate the BO into a certain domain */ + struct radeon_device *rdev = dev->dev_private; + struct drm_radeon_gem_set_domain *args = data; + struct drm_gem_object *gobj; + struct radeon_bo *robj; + int r; + + /* for now if someone requests domain CPU - + * just make sure the buffer is finished with */ + down_read(&rdev->exclusive_lock); + + /* just do a BO wait for now */ + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + up_read(&rdev->exclusive_lock); + return -ENOENT; + } + robj = gem_to_radeon_bo(gobj); + + r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); + + drm_gem_object_unreference_unlocked(gobj); + up_read(&rdev->exclusive_lock); + r = radeon_gem_handle_lockup(robj->rdev, r); + return r; +} + +int radeon_mode_dumb_mmap(struct drm_file *filp, + struct drm_device *dev, + uint32_t handle, uint64_t *offset_p) +{ + struct drm_gem_object *gobj; + struct radeon_bo *robj; + + gobj = drm_gem_object_lookup(dev, filp, handle); + if (gobj == NULL) { + return -ENOENT; + } + robj = gem_to_radeon_bo(gobj); + *offset_p = radeon_bo_mmap_offset(robj); + drm_gem_object_unreference_unlocked(gobj); + return 0; +} + +int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct drm_radeon_gem_mmap *args = data; + + return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); +} + +int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct radeon_device *rdev = dev->dev_private; + struct drm_radeon_gem_busy *args = data; + struct drm_gem_object *gobj; + struct radeon_bo *robj; + int r; + uint32_t cur_placement = 0; + + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + return -ENOENT; + } + robj = gem_to_radeon_bo(gobj); + r = radeon_bo_wait(robj, &cur_placement, true); + switch (cur_placement) { + case TTM_PL_VRAM: + args->domain = RADEON_GEM_DOMAIN_VRAM; + break; + case TTM_PL_TT: + args->domain = RADEON_GEM_DOMAIN_GTT; + break; + case TTM_PL_SYSTEM: + args->domain = RADEON_GEM_DOMAIN_CPU; + default: + break; + } + drm_gem_object_unreference_unlocked(gobj); + r = radeon_gem_handle_lockup(rdev, r); + return r; +} + +int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct radeon_device *rdev = dev->dev_private; + struct drm_radeon_gem_wait_idle *args = data; + struct drm_gem_object *gobj; + struct radeon_bo *robj; + int r; + + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + return -ENOENT; + } + robj = gem_to_radeon_bo(gobj); + r = radeon_bo_wait(robj, NULL, false); + /* callback hw specific functions if any */ + if (rdev->asic->ioctl_wait_idle) + robj->rdev->asic->ioctl_wait_idle(rdev, robj); + drm_gem_object_unreference_unlocked(gobj); + r = radeon_gem_handle_lockup(rdev, r); + return r; +} + +int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct drm_radeon_gem_set_tiling *args = data; + struct drm_gem_object *gobj; + struct radeon_bo *robj; + int r = 0; + + DRM_DEBUG("%d \n", args->handle); + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) + return -ENOENT; + robj = gem_to_radeon_bo(gobj); + r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); + drm_gem_object_unreference_unlocked(gobj); + return r; +} + +int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct drm_radeon_gem_get_tiling *args = data; + struct drm_gem_object *gobj; + struct radeon_bo *rbo; + int r = 0; + + DRM_DEBUG("\n"); + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) + return -ENOENT; + rbo = gem_to_radeon_bo(gobj); + r = radeon_bo_reserve(rbo, false); + if (unlikely(r != 0)) + goto out; + radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); + radeon_bo_unreserve(rbo); +out: + drm_gem_object_unreference_unlocked(gobj); + return r; +} + +int radeon_gem_va_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct drm_radeon_gem_va *args = data; + struct drm_gem_object *gobj; + struct radeon_device *rdev = dev->dev_private; + struct radeon_fpriv *fpriv = filp->driver_priv; + struct radeon_bo *rbo; + struct radeon_bo_va *bo_va; + u32 invalid_flags; + int r = 0; + + if (!rdev->vm_manager.enabled) { + args->operation = RADEON_VA_RESULT_ERROR; + return -ENOTTY; + } + + /* !! DONT REMOVE !! + * We don't support vm_id yet, to be sure we don't have have broken + * userspace, reject anyone trying to use non 0 value thus moving + * forward we can use those fields without breaking existant userspace + */ + if (args->vm_id) { + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + if (args->offset < RADEON_VA_RESERVED_SIZE) { + dev_err(&dev->pdev->dev, + "offset 0x%lX is in reserved area 0x%X\n", + (unsigned long)args->offset, + RADEON_VA_RESERVED_SIZE); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + /* don't remove, we need to enforce userspace to set the snooped flag + * otherwise we will endup with broken userspace and we won't be able + * to enable this feature without adding new interface + */ + invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM; + if ((args->flags & invalid_flags)) { + dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n", + args->flags, invalid_flags); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) { + dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n"); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + switch (args->operation) { + case RADEON_VA_MAP: + case RADEON_VA_UNMAP: + break; + default: + dev_err(&dev->pdev->dev, "unsupported operation %d\n", + args->operation); + args->operation = RADEON_VA_RESULT_ERROR; + return -EINVAL; + } + + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + args->operation = RADEON_VA_RESULT_ERROR; + return -ENOENT; + } + rbo = gem_to_radeon_bo(gobj); + r = radeon_bo_reserve(rbo, false); + if (r) { + args->operation = RADEON_VA_RESULT_ERROR; + drm_gem_object_unreference_unlocked(gobj); + return r; + } + bo_va = radeon_vm_bo_find(&fpriv->vm, rbo); + if (!bo_va) { + args->operation = RADEON_VA_RESULT_ERROR; + drm_gem_object_unreference_unlocked(gobj); + return -ENOENT; + } + + switch (args->operation) { + case RADEON_VA_MAP: + if (bo_va->soffset) { + args->operation = RADEON_VA_RESULT_VA_EXIST; + args->offset = bo_va->soffset; + goto out; + } + r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); + break; + case RADEON_VA_UNMAP: + r = radeon_vm_bo_set_addr(rdev, bo_va, 0, 0); + break; + default: + break; + } + args->operation = RADEON_VA_RESULT_OK; + if (r) { + args->operation = RADEON_VA_RESULT_ERROR; + } +out: + radeon_bo_unreserve(rbo); + drm_gem_object_unreference_unlocked(gobj); + return r; +} + +int radeon_mode_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args) +{ + struct radeon_device *rdev = dev->dev_private; + struct drm_gem_object *gobj; + uint32_t handle; + int r; + + args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); + args->size = args->pitch * args->height; + args->size = ALIGN(args->size, PAGE_SIZE); + + r = radeon_gem_object_create(rdev, args->size, 0, + RADEON_GEM_DOMAIN_VRAM, + false, ttm_bo_type_device, + &gobj); + if (r) + return -ENOMEM; + + r = drm_gem_handle_create(file_priv, gobj, &handle); + /* drop reference from allocate - handle holds it now */ + drm_gem_object_unreference_unlocked(gobj); + if (r) { + return r; + } + args->handle = handle; + return 0; +} + +int radeon_mode_dumb_destroy(struct drm_file *file_priv, + struct drm_device *dev, + uint32_t handle) +{ + return drm_gem_handle_delete(file_priv, handle); +} + +#if defined(CONFIG_DEBUG_FS) +static int radeon_debugfs_gem_info(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *dev = node->minor->dev; + struct radeon_device *rdev = dev->dev_private; + struct radeon_bo *rbo; + unsigned i = 0; + + mutex_lock(&rdev->gem.mutex); + list_for_each_entry(rbo, &rdev->gem.objects, list) { + unsigned domain; + const char *placement; + + domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type); + switch (domain) { + case RADEON_GEM_DOMAIN_VRAM: + placement = "VRAM"; + break; + case RADEON_GEM_DOMAIN_GTT: + placement = " GTT"; + break; + case RADEON_GEM_DOMAIN_CPU: + default: + placement = " CPU"; + break; + } + seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n", + i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20, + placement, (unsigned long)rbo->pid); + i++; + } + mutex_unlock(&rdev->gem.mutex); + return 0; +} + +static struct drm_info_list radeon_debugfs_gem_list[] = { + {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL}, +}; +#endif + +int radeon_gem_debugfs_init(struct radeon_device *rdev) +{ +#if defined(CONFIG_DEBUG_FS) + return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1); +#endif + return 0; +} |