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Merge commit 'anholt/drm-gem' into drm-gem

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Keith Packard 2008-05-10 21:05:25 -07:00
parent 177b8b0703 48a8531aa4
commit 1f9eaceb71
3 changed files with 111 additions and 37 deletions
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131
linux-core/i915_gem.c
View File

@ -48,7 +48,7 @@ i915_gem_init_ioctl(struct drm_device *dev, void *data,
return -EINVAL;
drm_memrange_init(&dev_priv->mm.gtt_space, args->gtt_start,
args->gtt_end);
args->gtt_end - args->gtt_start);
return 0;
}
@ -150,6 +150,7 @@ static int
i915_gem_object_wait_rendering(struct drm_gem_object *obj)
{
struct drm_device *dev = obj->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj_priv = obj->driver_private;
int ret;
@ -163,9 +164,19 @@ i915_gem_object_wait_rendering(struct drm_gem_object *obj)
#endif
i915_gem_flush(dev, 0, obj->write_domain);
obj->write_domain = 0;
/* Add a reference since we're gaining a cookie. */
if (obj_priv->last_rendering_cookie == 0)
drm_gem_object_reference(obj);
/* Move from whatever list we were on to the tail of execution.
*/
list_move_tail(&obj_priv->gtt_lru_entry,
&dev_priv->mm.execution_list);
obj_priv->last_rendering_cookie = i915_emit_irq(dev);
BUG_ON(obj_priv->last_rendering_cookie == 0);
#if WATCH_LRU
DRM_INFO("%s: flush moves to exec list %p\n", __func__, obj);
#endif
}
/* If there is rendering queued on the buffer being evicted, wait for
* it.
@ -178,12 +189,19 @@ i915_gem_object_wait_rendering(struct drm_gem_object *obj)
ret = i915_wait_irq(dev, obj_priv->last_rendering_cookie);
if (ret != 0)
return ret;
/* Clear it now that we know it's passed. */
obj_priv->last_rendering_cookie = 0;
/*
* The cookie held a reference to the object,
* release that now
/* We were on the execution list since we had a cookie.
* Move to the tail of the LRU list now since we're done.
*/
list_move_tail(&obj_priv->gtt_lru_entry,
&dev_priv->mm.gtt_lru);
#if WATCH_LRU
DRM_INFO("%s: wait moves to lru list %p\n", __func__, obj);
#endif
/* The cookie held a reference to the object, release that
* now
*/
drm_gem_object_unreference(obj);
}
@ -206,19 +224,33 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
if (obj_priv->gtt_space == NULL)
return;
i915_gem_object_wait_rendering(obj);
/* Ignore the return value of wait_rendering. If we're here but
* a wait_rendering hasn't completed, we're in the freeing process,
* and we want the buffer to go away even if the command queue is hung.
*/
(void)i915_gem_object_wait_rendering(obj);
if (obj_priv->agp_mem != NULL) {
drm_unbind_agp(obj_priv->agp_mem);
drm_free_agp(obj_priv->agp_mem, obj->size / PAGE_SIZE);
obj_priv->agp_mem = NULL;
}
i915_gem_object_free_page_list(obj);
drm_memrange_put_block(obj_priv->gtt_space);
obj_priv->gtt_space = NULL;
if (!list_empty(&obj_priv->gtt_lru_entry))
/* Remove ourselves from the LRU list if present. */
if (!list_empty(&obj_priv->gtt_lru_entry)) {
list_del_init(&obj_priv->gtt_lru_entry);
if (obj_priv->last_rendering_cookie) {
DRM_ERROR("Failed to wait on buffer when unbinding, "
"continued anyway.\n");
obj_priv->last_rendering_cookie = 0;
drm_gem_object_unreference(obj);
}
}
}
#if WATCH_BUF | WATCH_EXEC
@ -273,6 +305,13 @@ i915_dump_lru(struct drm_device *dev, const char *where)
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj_priv;
DRM_INFO("GTT execution list %s {\n", where);
list_for_each_entry(obj_priv, &dev_priv->mm.execution_list,
gtt_lru_entry)
{
DRM_INFO(" %p: %08x\n", obj_priv,
obj_priv->last_rendering_cookie);
}
DRM_INFO("GTT LRU %s {\n", where);
list_for_each_entry(obj_priv, &dev_priv->mm.gtt_lru, gtt_lru_entry) {
DRM_INFO(" %p: %08x\n", obj_priv,
@ -291,11 +330,22 @@ i915_gem_evict_something(struct drm_device *dev)
int ret;
/* Find the LRU buffer. */
BUG_ON(list_empty(&dev_priv->mm.gtt_lru));
if (!list_empty(&dev_priv->mm.gtt_lru)) {
obj_priv = list_first_entry(&dev_priv->mm.gtt_lru,
struct drm_i915_gem_object,
gtt_lru_entry);
} else if (!list_empty(&dev_priv->mm.execution_list)) {
/* If there's nothing unused and ready, grab the LRU
* from the currently executing list.
*/
obj_priv = list_first_entry(&dev_priv->mm.execution_list,
struct drm_i915_gem_object,
gtt_lru_entry);
} else {
return -ENOMEM;
}
obj = obj_priv->obj;
drm_gem_object_reference(obj);
#if WATCH_LRU
DRM_INFO("%s: evicting %p\n", __func__, obj);
#endif
@ -316,6 +366,7 @@ i915_gem_evict_something(struct drm_device *dev)
#if WATCH_LRU
DRM_INFO("%s: evicted %p\n", __func__, obj);
#endif
drm_gem_object_unreference(obj);
return 0;
}
@ -359,7 +410,8 @@ i915_gem_object_bind_to_gtt(struct drm_gem_object *obj, unsigned alignment)
#if WATCH_LRU
DRM_INFO("%s: GTT full, evicting something\n", __func__);
#endif
if (list_empty(&dev_priv->mm.gtt_lru)) {
if (list_empty(&dev_priv->mm.gtt_lru) &&
list_empty(&dev_priv->mm.execution_list)) {
DRM_ERROR("GTT full, but LRU list empty\n");
return -ENOMEM;
}
@ -528,7 +580,6 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj,
struct drm_i915_gem_exec_object *entry)
{
struct drm_device *dev = obj->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_relocation_entry reloc;
struct drm_i915_gem_relocation_entry __user *relocs;
struct drm_i915_gem_object *obj_priv = obj->driver_private;
@ -545,19 +596,6 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj,
entry->offset = obj_priv->gtt_offset;
if (obj_priv->pin_count == 0) {
/* Move our buffer to the head of the LRU. */
if (list_empty(&obj_priv->gtt_lru_entry))
list_add_tail(&obj_priv->gtt_lru_entry,
&dev_priv->mm.gtt_lru);
else
list_move_tail(&obj_priv->gtt_lru_entry,
&dev_priv->mm.gtt_lru);
#if WATCH_LRU && 0
i915_dump_lru(dev, __func__);
#endif
}
relocs = (struct drm_i915_gem_relocation_entry __user *)
(uintptr_t) entry->relocs_ptr;
/* Apply the relocations, using the GTT aperture to avoid cache
@ -640,8 +678,10 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj,
/* If the relocation already has the right value in it, no
* more work needs to be done.
*/
if (target_obj_priv->gtt_offset == reloc.presumed_offset)
if (target_obj_priv->gtt_offset == reloc.presumed_offset) {
drm_gem_object_unreference(target_obj);
continue;
}
/* Now that we're going to actually write some data in,
* make sure that any rendering using this buffer's contents
@ -767,6 +807,7 @@ int
i915_gem_execbuffer(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_execbuffer *args = data;
struct drm_i915_gem_exec_object *validate_list;
struct drm_gem_object **object_list;
@ -890,7 +931,17 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
if (obj_priv->last_rendering_cookie == 0)
drm_gem_object_reference(obj);
obj_priv->last_rendering_cookie = cookie;
BUG_ON(obj_priv->last_rendering_cookie == 0);
/* Move our buffer to the tail of the execution list. */
list_move_tail(&obj_priv->gtt_lru_entry,
&dev_priv->mm.execution_list);
#if WATCH_LRU
DRM_INFO("%s: move to exec list %p\n", __func__, obj);
#endif
}
#if WATCH_LRU && 0
i915_dump_lru(dev, __func__);
#endif
/* Copy the new buffer offsets back to the user's validate list. */
ret = copy_to_user((struct drm_i915_relocation_entry __user *)
@ -907,14 +958,6 @@ err:
drm_gem_object_unreference(object_list[i]);
}
#if 1
/* XXX kludge for now as we don't clean the exec ring yet */
if (object_list != NULL) {
for (i = 0; i < args->buffer_count; i++)
i915_gem_object_wait_rendering(object_list[i]);
}
#endif
drm_free(object_list, sizeof(*object_list) * args->buffer_count,
DRM_MEM_DRIVER);
drm_free(validate_list, sizeof(*validate_list) * args->buffer_count,
@ -1010,3 +1053,27 @@ i915_gem_set_domain_ioctl(struct drm_gem_object *obj,
i915_gem_dev_set_domain(obj->dev);
return 0;
}
void
i915_gem_lastclose(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
/* Assume that the chip has been idled at this point. Just pull them
* off the execution list and unref them. Since this is the last
* close, this is also the last ref and they'll go away.
*/
while (!list_empty(&dev_priv->mm.execution_list)) {
struct drm_i915_gem_object *obj_priv;
obj_priv = list_first_entry(&dev_priv->mm.execution_list,
struct drm_i915_gem_object,
gtt_lru_entry);
list_del_init(&obj_priv->gtt_lru_entry);
obj_priv->last_rendering_cookie = 0;
obj_priv->obj->write_domain = 0;
drm_gem_object_unreference(obj_priv->obj);
}
}

2
shared-core/i915_dma.c
View File

@ -1052,6 +1052,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
_DRM_KERNEL | _DRM_DRIVER, &dev_priv->mmio_map);
INIT_LIST_HEAD(&dev_priv->mm.gtt_lru);
INIT_LIST_HEAD(&dev_priv->mm.execution_list);
#ifdef __linux__
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
@ -1093,6 +1094,7 @@ void i915_driver_lastclose(struct drm_device * dev)
dev_priv->val_bufs = NULL;
}
#endif
i915_gem_lastclose(dev);
if (drm_getsarea(dev) && dev_priv->sarea_priv)
i915_do_cleanup_pageflip(dev);

9
shared-core/i915_drv.h
View File

@ -244,7 +244,12 @@ typedef struct drm_i915_private {
struct {
struct drm_memrange gtt_space;
/** LRU List of unpinned objects in the GTT. */
/**
* List of objects currently involved in rendering from the
* ringbuffer.
*/
struct list_head execution_list;
/** LRU List of non-executing objects still in the GTT. */
struct list_head gtt_lru;
} mm;
} drm_i915_private_t;
@ -386,7 +391,7 @@ void i915_gem_free_object(struct drm_gem_object *obj);
int i915_gem_set_domain_ioctl (struct drm_gem_object *obj,
uint32_t read_domains,
uint32_t write_domain);
void i915_gem_lastclose(struct drm_device *dev);
#endif
#ifdef __linux__