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Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux 

Pull i915 drm fixes from Dave Airlie:
 "These should be the last two fixes for i915, one is for a fence leak
  killing X on some older GPUs, and one is a late regression partial
  revert for an swiotlb/xen/i915 interaction, Konrad has promised to
  figure out the proper answer, and this patch is the best thing to do
  at this stage to avoid regressing"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/i915: make compact dma scatter lists creation work with SWIOTLB backend.
  drm/i915: Restore fences after resume and GPU resets
This commit is contained in:
Linus Torvalds 2013-06-26 19:23:15 -10:00
parent 34a0868183 426729dcc7
commit 1a506e4735
3 changed files with 20 additions and 20 deletions
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2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1697,6 +1697,8 @@ struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
struct drm_gem_object *gem_obj, int flags);
void i915_gem_restore_fences(struct drm_device *dev);
/* i915_gem_context.c */
void i915_gem_context_init(struct drm_device *dev);
void i915_gem_context_fini(struct drm_device *dev);

37
drivers/gpu/drm/i915/i915_gem.c
View File

@ -1801,7 +1801,14 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
gfp |= __GFP_NORETRY | __GFP_NOWARN | __GFP_NO_KSWAPD;
gfp &= ~(__GFP_IO | __GFP_WAIT);
}
#ifdef CONFIG_SWIOTLB
if (swiotlb_nr_tbl()) {
st->nents++;
sg_set_page(sg, page, PAGE_SIZE, 0);
sg = sg_next(sg);
continue;
}
#endif
if (!i || page_to_pfn(page) != last_pfn + 1) {
if (i)
sg = sg_next(sg);
@ -1812,8 +1819,10 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
}
last_pfn = page_to_pfn(page);
}
sg_mark_end(sg);
#ifdef CONFIG_SWIOTLB
if (!swiotlb_nr_tbl())
#endif
sg_mark_end(sg);
obj->pages = st;
if (i915_gem_object_needs_bit17_swizzle(obj))
@ -2117,25 +2126,15 @@ static void i915_gem_reset_ring_lists(struct drm_i915_private *dev_priv,
}
}
static void i915_gem_reset_fences(struct drm_device *dev)
void i915_gem_restore_fences(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int i;
for (i = 0; i < dev_priv->num_fence_regs; i++) {
struct drm_i915_fence_reg *reg = &dev_priv->fence_regs[i];
if (reg->obj)
i915_gem_object_fence_lost(reg->obj);
i915_gem_write_fence(dev, i, NULL);
reg->pin_count = 0;
reg->obj = NULL;
INIT_LIST_HEAD(&reg->lru_list);
i915_gem_write_fence(dev, i, reg->obj);
}
INIT_LIST_HEAD(&dev_priv->mm.fence_list);
}
void i915_gem_reset(struct drm_device *dev)
@ -2158,8 +2157,7 @@ void i915_gem_reset(struct drm_device *dev)
obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS;
}
/* The fence registers are invalidated so clear them out */
i915_gem_reset_fences(dev);
i915_gem_restore_fences(dev);
}
/**
@ -3865,8 +3863,6 @@ i915_gem_idle(struct drm_device *dev)
if (!drm_core_check_feature(dev, DRIVER_MODESET))
i915_gem_evict_everything(dev);
i915_gem_reset_fences(dev);
/* Hack! Don't let anybody do execbuf while we don't control the chip.
* We need to replace this with a semaphore, or something.
* And not confound mm.suspended!
@ -4193,7 +4189,8 @@ i915_gem_load(struct drm_device *dev)
dev_priv->num_fence_regs = 8;
/* Initialize fence registers to zero */
i915_gem_reset_fences(dev);
INIT_LIST_HEAD(&dev_priv->mm.fence_list);
i915_gem_restore_fences(dev);
i915_gem_detect_bit_6_swizzle(dev);
init_waitqueue_head(&dev_priv->pending_flip_queue);

1
drivers/gpu/drm/i915/i915_suspend.c
View File

@ -384,6 +384,7 @@ int i915_restore_state(struct drm_device *dev)
mutex_lock(&dev->struct_mutex);
i915_gem_restore_fences(dev);
i915_restore_display(dev);
if (!drm_core_check_feature(dev, DRIVER_MODESET)) {