245 lines
7.0 KiB
C
245 lines
7.0 KiB
C
/*
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* Copyright 2007 Jérôme Glisse
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* All Rights Reserved.
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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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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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* PRECISION INSIGHT AND/OR ITS SUPPLIERS 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 OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Jerome Glisse <glisse@freedesktop.org>
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*/
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#include "radeon_ms.h"
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static void radeon_ms_execbuffer_args_clean(struct drm_device *dev,
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struct drm_buffer_object **buffers,
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uint32_t args_count)
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{
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mutex_lock(&dev->struct_mutex);
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while (args_count--) {
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drm_bo_usage_deref_locked(&buffers[args_count]);
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}
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mutex_unlock(&dev->struct_mutex);
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}
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static int radeon_ms_execbuffer_args(struct drm_device *dev,
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struct drm_file *file_priv,
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struct drm_radeon_execbuffer *execbuffer,
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struct drm_buffer_object **buffers,
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uint32_t *relocs)
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{
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struct drm_radeon_execbuffer_arg arg;
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struct drm_bo_arg_rep rep;
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uint32_t args_count = 0;
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uint64_t next = 0;
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uint64_t data = execbuffer->args;
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int ret = 0;
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do {
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if (args_count >= execbuffer->args_count) {
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DRM_ERROR("[radeon_ms] buffer count exceeded %d\n.",
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execbuffer->args_count);
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ret = -EINVAL;
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goto out_err;
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}
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buffers[args_count] = NULL;
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if (copy_from_user(&arg, (void __user *)((unsigned)data),
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sizeof(struct drm_radeon_execbuffer_arg))) {
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ret = -EFAULT;
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goto out_err;
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}
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mutex_lock(&dev->struct_mutex);
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buffers[args_count] =
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drm_lookup_buffer_object(file_priv,
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arg.d.req.arg_handle, 1);
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relocs[args_count] = arg.reloc_offset;
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mutex_unlock(&dev->struct_mutex);
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if (arg.d.req.op != drm_bo_validate) {
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DRM_ERROR("[radeon_ms] buffer object operation wasn't "
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"validate.\n");
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ret = -EINVAL;
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goto out_err;
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}
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memset(&rep, 0, sizeof(struct drm_bo_arg_rep));
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if (args_count >= 1) {
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ret = drm_bo_handle_validate(file_priv,
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arg.d.req.bo_req.handle,
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arg.d.req.bo_req.flags,
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arg.d.req.bo_req.mask,
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arg.d.req.bo_req.hint,
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arg.d.req.bo_req.fence_class,
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0,
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&rep.bo_info,
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&buffers[args_count]);
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}
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if (ret) {
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DRM_ERROR("[radeon_ms] error on handle validate %d\n",
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ret);
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rep.ret = ret;
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goto out_err;
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}
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next = arg.next;
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arg.d.rep = rep;
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if (copy_to_user((void __user *)((unsigned)data), &arg,
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sizeof(struct drm_radeon_execbuffer_arg))) {
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ret = -EFAULT;
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goto out_err;
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}
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data = next;
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args_count++;
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} while (next != 0);
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if (args_count != execbuffer->args_count) {
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DRM_ERROR("[radeon_ms] not enought buffer got %d waited %d\n.",
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args_count, execbuffer->args_count);
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ret = -EINVAL;
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goto out_err;
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}
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return 0;
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out_err:
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radeon_ms_execbuffer_args_clean(dev, buffers, args_count);
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return ret;
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}
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static int radeon_ms_execbuffer_check(struct drm_device *dev,
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struct drm_file *file_priv,
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struct drm_radeon_execbuffer *execbuffer,
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struct drm_buffer_object **buffers,
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uint32_t *relocs,
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uint32_t *cmd)
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{
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uint32_t i, gpu_addr;
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int ret;
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for (i = 0; i < execbuffer->args_count; i++) {
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if (relocs[i]) {
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ret = radeon_ms_bo_get_gpu_addr(dev, &buffers[i]->mem,
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&gpu_addr);
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if (ret) {
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return ret;
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}
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cmd[relocs[i]] |= (gpu_addr) >> 10;
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}
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}
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for (i = 0; i < execbuffer->cmd_size; i++) {
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#if 0
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DRM_INFO("cmd[%d]=0x%08X\n", i, cmd[i]);
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#endif
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}
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return 0;
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}
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int radeon_ms_execbuffer(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_radeon_execbuffer *execbuffer = data;
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struct drm_fence_arg *fence_arg = &execbuffer->fence_arg;
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struct drm_buffer_object **buffers;
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struct drm_bo_kmap_obj cmd_kmap;
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struct drm_fence_object *fence;
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uint32_t *relocs;
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uint32_t *cmd;
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int cmd_is_iomem;
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int ret = 0;
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ret = drm_bo_read_lock(&dev->bm.bm_lock);
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if (ret) {
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return ret;
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}
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relocs = drm_calloc(execbuffer->args_count, sizeof(uint32_t),
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DRM_MEM_DRIVER);
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if (relocs == NULL) {
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drm_bo_read_unlock(&dev->bm.bm_lock);
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return -ENOMEM;
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}
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buffers = drm_calloc(execbuffer->args_count,
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sizeof(struct drm_buffer_object *),
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DRM_MEM_DRIVER);
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if (buffers == NULL) {
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drm_free(relocs, (execbuffer->args_count * sizeof(uint32_t)),
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DRM_MEM_DRIVER);
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drm_bo_read_unlock(&dev->bm.bm_lock);
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return -ENOMEM;
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}
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/* process arguments */
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ret = radeon_ms_execbuffer_args(dev, file_priv, execbuffer,
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buffers, relocs);
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if (ret) {
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DRM_ERROR("[radeon_ms] execbuffer wrong arguments\n");
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goto out_free;
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}
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/* map command buffer */
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memset(&cmd_kmap, 0, sizeof(struct drm_bo_kmap_obj));
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ret = drm_bo_kmap(buffers[0],
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0,
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buffers[0]->mem.num_pages,
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&cmd_kmap);
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if (ret) {
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DRM_ERROR("[radeon_ms] error mapping ring buffer: %d\n", ret);
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goto out_free_release;
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}
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cmd = drm_bmo_virtual(&cmd_kmap, &cmd_is_iomem);
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/* do cmd checking & relocations */
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ret = radeon_ms_execbuffer_check(dev, file_priv, execbuffer,
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buffers, relocs, cmd);
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if (ret) {
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drm_putback_buffer_objects(dev);
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goto out_free_release;
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}
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ret = radeon_ms_ring_emit(dev, cmd, execbuffer->cmd_size);
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if (ret) {
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drm_putback_buffer_objects(dev);
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goto out_free_release;
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}
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/* fence */
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if (execbuffer->args_count > 1) {
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ret = drm_fence_buffer_objects(dev, NULL, 0, NULL, &fence);
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if (ret) {
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drm_putback_buffer_objects(dev);
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DRM_ERROR("[radeon_ms] fence buffer objects failed\n");
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goto out_free_release;
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}
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if (!(fence_arg->flags & DRM_FENCE_FLAG_NO_USER)) {
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ret = drm_fence_add_user_object(file_priv, fence,
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fence_arg->flags & DRM_FENCE_FLAG_SHAREABLE);
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if (!ret) {
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fence_arg->handle = fence->base.hash.key;
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fence_arg->fence_class = fence->fence_class;
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fence_arg->type = fence->type;
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fence_arg->signaled = fence->signaled_types;
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fence_arg->sequence = fence->sequence;
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}
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}
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drm_fence_usage_deref_unlocked(&fence);
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}
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out_free_release:
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drm_bo_kunmap(&cmd_kmap);
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radeon_ms_execbuffer_args_clean(dev, buffers, execbuffer->args_count);
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out_free:
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drm_free(relocs, (execbuffer->args_count * sizeof(uint32_t)),
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DRM_MEM_DRIVER);
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drm_free(buffers,
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(execbuffer->args_count * sizeof(struct drm_buffer_object *)),
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DRM_MEM_DRIVER);
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drm_bo_read_unlock(&dev->bm.bm_lock);
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return ret;
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}
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