diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_gem.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 287 |
1 files changed, 287 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..eb51603 --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -0,0 +1,287 @@ +/* + * 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) +{ + /* we do nothings here */ + return 0; +} + +void radeon_gem_object_free(struct drm_gem_object *gobj) +{ + struct radeon_object *robj = gobj->driver_private; + + gobj->driver_private = NULL; + if (robj) { + radeon_object_unref(&robj); + } +} + +int radeon_gem_object_create(struct radeon_device *rdev, int size, + int alignment, int initial_domain, + bool discardable, bool kernel, + bool interruptible, + struct drm_gem_object **obj) +{ + struct drm_gem_object *gobj; + struct radeon_object *robj; + int r; + + *obj = NULL; + gobj = drm_gem_object_alloc(rdev->ddev, size); + if (!gobj) { + return -ENOMEM; + } + /* At least align on page size */ + if (alignment < PAGE_SIZE) { + alignment = PAGE_SIZE; + } + r = radeon_object_create(rdev, gobj, size, kernel, initial_domain, + interruptible, &robj); + if (r) { + DRM_ERROR("Failed to allocate GEM object (%d, %d, %u)\n", + size, initial_domain, alignment); + mutex_lock(&rdev->ddev->struct_mutex); + drm_gem_object_unreference(gobj); + mutex_unlock(&rdev->ddev->struct_mutex); + return r; + } + gobj->driver_private = robj; + *obj = gobj; + return 0; +} + +int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain, + uint64_t *gpu_addr) +{ + struct radeon_object *robj = obj->driver_private; + uint32_t flags; + + switch (pin_domain) { + case RADEON_GEM_DOMAIN_VRAM: + flags = TTM_PL_FLAG_VRAM; + break; + case RADEON_GEM_DOMAIN_GTT: + flags = TTM_PL_FLAG_TT; + break; + default: + flags = TTM_PL_FLAG_SYSTEM; + break; + } + return radeon_object_pin(robj, flags, gpu_addr); +} + +void radeon_gem_object_unpin(struct drm_gem_object *obj) +{ + struct radeon_object *robj = obj->driver_private; + radeon_object_unpin(robj); +} + +int radeon_gem_set_domain(struct drm_gem_object *gobj, + uint32_t rdomain, uint32_t wdomain) +{ + struct radeon_object *robj; + uint32_t domain; + int r; + + /* FIXME: reeimplement */ + robj = gobj->driver_private; + /* 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_object_wait(robj); + 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_object_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; + + args->vram_size = rdev->mc.vram_size; + /* FIXME: report somethings that makes sense */ + args->vram_visible = rdev->mc.vram_size - (4 * 1024 * 1024); + args->gart_size = rdev->mc.gtt_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; + + /* 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, true, &gobj); + if (r) { + return r; + } + r = drm_gem_handle_create(filp, gobj, &handle); + if (r) { + mutex_lock(&dev->struct_mutex); + drm_gem_object_unreference(gobj); + mutex_unlock(&dev->struct_mutex); + return r; + } + mutex_lock(&dev->struct_mutex); + drm_gem_object_handle_unreference(gobj); + mutex_unlock(&dev->struct_mutex); + 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_object *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 -EINVAL; + } + robj = gobj->driver_private; + + r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); + + mutex_lock(&dev->struct_mutex); + drm_gem_object_unreference(gobj); + mutex_unlock(&dev->struct_mutex); + return r; +} + +int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + struct drm_radeon_gem_mmap *args = data; + struct drm_gem_object *gobj; + struct radeon_object *robj; + int r; + + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + return -EINVAL; + } + robj = gobj->driver_private; + r = radeon_object_mmap(robj, &args->addr_ptr); + mutex_lock(&dev->struct_mutex); + drm_gem_object_unreference(gobj); + mutex_unlock(&dev->struct_mutex); + return r; +} + +int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, + struct drm_file *filp) +{ + /* FIXME: implement */ + return 0; +} + +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_object *robj; + int r; + + gobj = drm_gem_object_lookup(dev, filp, args->handle); + if (gobj == NULL) { + return -EINVAL; + } + robj = gobj->driver_private; + r = radeon_object_wait(robj); + mutex_lock(&dev->struct_mutex); + drm_gem_object_unreference(gobj); + mutex_unlock(&dev->struct_mutex); + return r; +} |
