348 строки
8.7 KiB
C
348 строки
8.7 KiB
C
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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* Copyright 2009 Jerome Glisse.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alex Deucher
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* Jerome Glisse
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "radeon_drm.h"
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#include "radeon.h"
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int radeon_gem_object_init(struct drm_gem_object *obj)
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{
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/* we do nothings here */
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return 0;
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}
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void radeon_gem_object_free(struct drm_gem_object *gobj)
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{
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struct radeon_bo *robj = gobj->driver_private;
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gobj->driver_private = NULL;
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if (robj) {
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radeon_bo_unref(&robj);
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}
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drm_gem_object_release(gobj);
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kfree(gobj);
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}
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int radeon_gem_object_create(struct radeon_device *rdev, int size,
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int alignment, int initial_domain,
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bool discardable, bool kernel,
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struct drm_gem_object **obj)
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{
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struct drm_gem_object *gobj;
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struct radeon_bo *robj;
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int r;
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*obj = NULL;
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gobj = drm_gem_object_alloc(rdev->ddev, size);
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if (!gobj) {
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return -ENOMEM;
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}
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/* At least align on page size */
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if (alignment < PAGE_SIZE) {
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alignment = PAGE_SIZE;
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}
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r = radeon_bo_create(rdev, gobj, size, alignment, kernel, initial_domain, &robj);
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if (r) {
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if (r != -ERESTARTSYS)
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DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
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size, initial_domain, alignment, r);
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drm_gem_object_unreference_unlocked(gobj);
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return r;
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}
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gobj->driver_private = robj;
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*obj = gobj;
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return 0;
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}
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int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain,
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uint64_t *gpu_addr)
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{
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struct radeon_bo *robj = obj->driver_private;
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int r;
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r = radeon_bo_reserve(robj, false);
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if (unlikely(r != 0))
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return r;
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r = radeon_bo_pin(robj, pin_domain, gpu_addr);
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radeon_bo_unreserve(robj);
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return r;
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}
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void radeon_gem_object_unpin(struct drm_gem_object *obj)
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{
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struct radeon_bo *robj = obj->driver_private;
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int r;
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r = radeon_bo_reserve(robj, false);
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if (likely(r == 0)) {
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radeon_bo_unpin(robj);
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radeon_bo_unreserve(robj);
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}
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}
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int radeon_gem_set_domain(struct drm_gem_object *gobj,
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uint32_t rdomain, uint32_t wdomain)
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{
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struct radeon_bo *robj;
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uint32_t domain;
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int r;
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/* FIXME: reeimplement */
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robj = gobj->driver_private;
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/* work out where to validate the buffer to */
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domain = wdomain;
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if (!domain) {
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domain = rdomain;
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}
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if (!domain) {
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/* Do nothings */
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printk(KERN_WARNING "Set domain withou domain !\n");
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return 0;
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}
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if (domain == RADEON_GEM_DOMAIN_CPU) {
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/* Asking for cpu access wait for object idle */
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r = radeon_bo_wait(robj, NULL, false);
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if (r) {
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printk(KERN_ERR "Failed to wait for object !\n");
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return r;
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}
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}
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return 0;
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}
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int radeon_gem_init(struct radeon_device *rdev)
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{
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INIT_LIST_HEAD(&rdev->gem.objects);
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return 0;
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}
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void radeon_gem_fini(struct radeon_device *rdev)
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{
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radeon_bo_force_delete(rdev);
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}
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/*
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* GEM ioctls.
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*/
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int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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struct radeon_device *rdev = dev->dev_private;
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struct drm_radeon_gem_info *args = data;
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args->vram_size = rdev->mc.real_vram_size;
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args->vram_visible = rdev->mc.real_vram_size;
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if (rdev->stollen_vga_memory)
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args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
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args->vram_visible -= radeon_fbdev_total_size(rdev);
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args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 -
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RADEON_IB_POOL_SIZE*64*1024;
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return 0;
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}
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int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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/* TODO: implement */
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DRM_ERROR("unimplemented %s\n", __func__);
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return -ENOSYS;
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}
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int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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/* TODO: implement */
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DRM_ERROR("unimplemented %s\n", __func__);
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return -ENOSYS;
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}
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int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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struct radeon_device *rdev = dev->dev_private;
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struct drm_radeon_gem_create *args = data;
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struct drm_gem_object *gobj;
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uint32_t handle;
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int r;
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/* create a gem object to contain this object in */
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args->size = roundup(args->size, PAGE_SIZE);
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r = radeon_gem_object_create(rdev, args->size, args->alignment,
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args->initial_domain, false,
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false, &gobj);
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if (r) {
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return r;
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}
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r = drm_gem_handle_create(filp, gobj, &handle);
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/* drop reference from allocate - handle holds it now */
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drm_gem_object_unreference_unlocked(gobj);
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if (r) {
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return r;
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}
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args->handle = handle;
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return 0;
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}
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int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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/* transition the BO to a domain -
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* just validate the BO into a certain domain */
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struct drm_radeon_gem_set_domain *args = data;
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struct drm_gem_object *gobj;
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struct radeon_bo *robj;
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int r;
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/* for now if someone requests domain CPU -
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* just make sure the buffer is finished with */
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/* just do a BO wait for now */
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gobj = drm_gem_object_lookup(dev, filp, args->handle);
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if (gobj == NULL) {
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return -ENOENT;
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}
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robj = gobj->driver_private;
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r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
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drm_gem_object_unreference_unlocked(gobj);
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return r;
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}
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int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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struct drm_radeon_gem_mmap *args = data;
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struct drm_gem_object *gobj;
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struct radeon_bo *robj;
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gobj = drm_gem_object_lookup(dev, filp, args->handle);
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if (gobj == NULL) {
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return -ENOENT;
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}
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robj = gobj->driver_private;
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args->addr_ptr = radeon_bo_mmap_offset(robj);
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drm_gem_object_unreference_unlocked(gobj);
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return 0;
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}
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int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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struct drm_radeon_gem_busy *args = data;
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struct drm_gem_object *gobj;
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struct radeon_bo *robj;
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int r;
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uint32_t cur_placement = 0;
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gobj = drm_gem_object_lookup(dev, filp, args->handle);
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if (gobj == NULL) {
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return -ENOENT;
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}
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robj = gobj->driver_private;
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r = radeon_bo_wait(robj, &cur_placement, true);
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switch (cur_placement) {
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case TTM_PL_VRAM:
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args->domain = RADEON_GEM_DOMAIN_VRAM;
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break;
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case TTM_PL_TT:
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args->domain = RADEON_GEM_DOMAIN_GTT;
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break;
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case TTM_PL_SYSTEM:
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args->domain = RADEON_GEM_DOMAIN_CPU;
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default:
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break;
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}
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drm_gem_object_unreference_unlocked(gobj);
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return r;
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}
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int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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struct drm_radeon_gem_wait_idle *args = data;
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struct drm_gem_object *gobj;
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struct radeon_bo *robj;
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int r;
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gobj = drm_gem_object_lookup(dev, filp, args->handle);
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if (gobj == NULL) {
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return -ENOENT;
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}
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robj = gobj->driver_private;
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r = radeon_bo_wait(robj, NULL, false);
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/* callback hw specific functions if any */
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if (robj->rdev->asic->ioctl_wait_idle)
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robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj);
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drm_gem_object_unreference_unlocked(gobj);
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return r;
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}
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int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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struct drm_radeon_gem_set_tiling *args = data;
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struct drm_gem_object *gobj;
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struct radeon_bo *robj;
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int r = 0;
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DRM_DEBUG("%d \n", args->handle);
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gobj = drm_gem_object_lookup(dev, filp, args->handle);
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if (gobj == NULL)
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return -ENOENT;
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robj = gobj->driver_private;
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r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
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drm_gem_object_unreference_unlocked(gobj);
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return r;
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}
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int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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struct drm_radeon_gem_get_tiling *args = data;
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struct drm_gem_object *gobj;
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struct radeon_bo *rbo;
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int r = 0;
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DRM_DEBUG("\n");
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gobj = drm_gem_object_lookup(dev, filp, args->handle);
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if (gobj == NULL)
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return -ENOENT;
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rbo = gobj->driver_private;
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r = radeon_bo_reserve(rbo, false);
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if (unlikely(r != 0))
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goto out;
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radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
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radeon_bo_unreserve(rbo);
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out:
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drm_gem_object_unreference_unlocked(gobj);
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return r;
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}
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