diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_gem.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 390 |
1 files changed, 390 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 00000000..aa1ca2de --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -0,0 +1,390 @@ +/* + * 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 "drmP.h" +#include "drm.h" +#include "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) { + 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; + int r; + + *obj = NULL; + /* At least align on page size */ + if (alignment < PAGE_SIZE) { + alignment = PAGE_SIZE; + } + r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, &robj); + if (r) { + if (r != -ERESTARTSYS) + DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", + size, initial_domain, alignment, r); + return r; + } + *obj = &robj->gem_base; + + mutex_lock(&rdev->gem.mutex); + list_add_tail(&robj->list, &rdev->gem.objects); + mutex_unlock(&rdev->gem.mutex); + + return 0; +} + +int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain, + uint64_t *gpu_addr) +{ + struct radeon_bo *robj = gem_to_radeon_bo(obj); + int r; + + r = radeon_bo_reserve(robj, false); + if (unlikely(r != 0)) + return r; + r = radeon_bo_pin(robj, pin_domain, gpu_addr); + radeon_bo_unreserve(robj); + return r; +} + +void radeon_gem_object_unpin(struct drm_gem_object *obj) +{ + struct radeon_bo *robj = gem_to_radeon_bo(obj); + int r; + + r = radeon_bo_reserve(robj, false); + if (likely(r == 0)) { + radeon_bo_unpin(robj); + radeon_bo_unreserve(robj); + } +} + +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 withou 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); +} + + +/* + * 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; + + 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 - rdev->cp.ring_size - 4096 - + RADEON_IB_POOL_SIZE*64*1024; + 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; + + /* 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) { + 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) { + return r; + } + args->handle = handle; + 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 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 */ + + /* just do a BO wait for now */ + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + 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); + 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 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); + return r; +} + +int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + 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 (robj->rdev->asic->ioctl_wait_idle) + robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); + drm_gem_object_unreference_unlocked(gobj); + 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_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); +} |