141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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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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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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*
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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int
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i915_gem_init_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_i915_gem_init *args = data;
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if (args->gtt_start >= args->gtt_end ||
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(args->gtt_start & (PAGE_SIZE - 1)) != 0 ||
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(args->gtt_end & (PAGE_SIZE - 1)) != 0)
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return -EINVAL;
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drm_memrange_init(&dev_priv->mm.gtt_space, args->gtt_start,
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args->gtt_end);
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return 0;
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}
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static void
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i915_gem_evict_object(struct drm_device *dev, struct drm_gem_object *obj)
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{
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}
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static int
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evict_callback(struct drm_memrange_node *node, void *data)
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{
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struct drm_device *dev = data;
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struct drm_gem_object *obj = node->private;
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struct drm_i915_gem_object *obj_priv = obj->driver_private;
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if (obj_priv->pin_count == 0)
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i915_gem_evict_object(dev, obj);
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return 0;
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}
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int
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i915_gem_execbuffer(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_i915_gem_execbuffer *args = data;
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struct drm_i915_gem_validate_entry *validate_list;
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int ret, i;
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RING_LOCALS;
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LOCK_TEST_WITH_RETURN(dev, file_priv);
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/* Big hammer: flush and idle the hardware so we can map things in/out.
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*/
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BEGIN_LP_RING(2);
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OUT_RING(CMD_MI_FLUSH | MI_READ_FLUSH | MI_EXE_FLUSH);
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OUT_RING(0); /* noop */
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ADVANCE_LP_RING();
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ret = i915_quiescent(dev);
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if (ret != 0)
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return ret;
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/* Evict everything so we have space for sure. */
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drm_memrange_for_each(&dev_priv->mm.gtt_space, evict_callback);
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/* Copy in the validate list from userland */
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validate_list = drm_calloc(sizeof(*validate_list), args->buffer_count,
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DRM_MEM_DRIVER);
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ret = copy_from_user(validate_list,
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(struct drm_i915_relocation_entry __user*)
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args->buffers,
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sizeof(*validate_list) * args->buffer_count);
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if (ret != 0) {
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drm_free(validate_list,
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sizeof(*validate_list) * args->buffer_count,
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DRM_MEM_DRIVER);
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return ret;
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}
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/* Perform the relocations */
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for (i = 0; i < args->buffer_count; i++) {
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intel_gem_reloc_and_validate_buffer(dev, &validate_list[i]);
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}
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/* Exec the batchbuffer */
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drm_free(validate_list, sizeof(*validate_list) * args->buffer_count,
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DRM_MEM_DRIVER);
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return 0;
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}
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int i915_gem_init_object(struct drm_device *dev, struct drm_gem_object *obj)
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{
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struct drm_i915_gem_object *obj_priv;
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obj_priv = drm_calloc(1, sizeof(*obj_priv), DRM_MEM_DRIVER);
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if (obj_priv == NULL)
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return -ENOMEM;
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obj->driver_private = obj_priv;
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return 0;
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}
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void i915_gem_free_object(struct drm_device *dev, struct drm_gem_object *obj)
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{
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drm_free(obj->driver_private, 1, DRM_MEM_DRIVER);
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}
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