/* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
*/
-/**************************************************************************
- *
+/*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
- **************************************************************************/
+ */
#include "drmP.h"
#include "drm.h"
return 0;
}
-static int i915_resume(drm_device_t * dev)
+static int i915_dma_resume(drm_device_t * dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
retcode = i915_dma_cleanup(dev);
break;
case I915_RESUME_DMA:
- retcode = i915_resume(dev);
+ retcode = i915_dma_resume(dev);
break;
default:
retcode = -EINVAL;
int i;
RING_LOCALS;
+ if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8)
+ return DRM_ERR(EINVAL);
+
+ BEGIN_LP_RING(((dwords+1)&~1));
+
for (i = 0; i < dwords;) {
int cmd, sz;
if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd)))
return DRM_ERR(EINVAL);
-/* printk("%d/%d ", i, dwords); */
-
if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
return DRM_ERR(EINVAL);
- BEGIN_LP_RING(sz);
OUT_RING(cmd);
while (++i, --sz) {
}
OUT_RING(cmd);
}
- ADVANCE_LP_RING();
}
+ if (dwords & 1)
+ OUT_RING(0);
+
+ ADVANCE_LP_RING();
+
return 0;
}
return 0;
}
+static void i915_emit_breadcrumb(drm_device_t *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ RING_LOCALS;
+
+ dev_priv->sarea_priv->last_enqueue = dev_priv->counter++;
+
+ BEGIN_LP_RING(4);
+ OUT_RING(CMD_STORE_DWORD_IDX);
+ OUT_RING(20);
+ OUT_RING(dev_priv->counter);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+}
+
static int i915_dispatch_cmdbuffer(drm_device_t * dev,
drm_i915_cmdbuffer_t * cmd)
{
return ret;
}
+ i915_emit_breadcrumb(dev);
return 0;
}
}
}
- dev_priv->sarea_priv->last_enqueue = dev_priv->counter++;
-
- BEGIN_LP_RING(4);
- OUT_RING(CMD_STORE_DWORD_IDX);
- OUT_RING(20);
- OUT_RING(dev_priv->counter);
- OUT_RING(0);
- ADVANCE_LP_RING();
+ i915_emit_breadcrumb(dev);
return 0;
}
case I915_PARAM_ALLOW_BATCHBUFFER:
value = dev_priv->allow_batchbuffer ? 1 : 0;
break;
+ case I915_PARAM_LAST_DISPATCH:
+ value = READ_BREADCRUMB(dev_priv);
+ break;
default:
- DRM_ERROR("Unkown parameter %d\n", param.param);
+ DRM_ERROR("Unknown parameter %d\n", param.param);
return DRM_ERR(EINVAL);
}
}
drm_ioctl_desc_t i915_ioctls[] = {
- [DRM_IOCTL_NR(DRM_I915_INIT)] = {i915_dma_init, 1, 1},
- [DRM_IOCTL_NR(DRM_I915_FLUSH)] = {i915_flush_ioctl, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_FLIP)] = {i915_flip_bufs, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_BATCHBUFFER)] = {i915_batchbuffer, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_IRQ_EMIT)] = {i915_irq_emit, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_IRQ_WAIT)] = {i915_irq_wait, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_GETPARAM)] = {i915_getparam, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_SETPARAM)] = {i915_setparam, 1, 1},
- [DRM_IOCTL_NR(DRM_I915_ALLOC)] = {i915_mem_alloc, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_FREE)] = {i915_mem_free, 1, 0},
- [DRM_IOCTL_NR(DRM_I915_INIT_HEAP)] = {i915_mem_init_heap, 1, 1},
- [DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, 1, 0}
+ [DRM_IOCTL_NR(DRM_I915_INIT)] = {i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
+ [DRM_IOCTL_NR(DRM_I915_FLUSH)] = {i915_flush_ioctl, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_FLIP)] = {i915_flip_bufs, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_BATCHBUFFER)] = {i915_batchbuffer, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_IRQ_EMIT)] = {i915_irq_emit, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_IRQ_WAIT)] = {i915_irq_wait, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_GETPARAM)] = {i915_getparam, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_SETPARAM)] = {i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
+ [DRM_IOCTL_NR(DRM_I915_ALLOC)] = {i915_mem_alloc, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_FREE)] = {i915_mem_free, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_INIT_HEAP)] = {i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
+ [DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, DRM_AUTH},
+ [DRM_IOCTL_NR(DRM_I915_DESTROY_HEAP)] = { i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY },
+ [DRM_IOCTL_NR(DRM_I915_SET_VBLANK_PIPE)] = { i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY },
+ [DRM_IOCTL_NR(DRM_I915_GET_VBLANK_PIPE)] = { i915_vblank_pipe_get, DRM_AUTH },
};
int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);