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sna: Tune the inplace cross-over point to be half-cache size 

The theory being that we will also require cache space to copy from when
uploading into the shadow.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-12-19 16:51:29 +00:00
parent d53b1b2895
commit c3a8d77a2b
3 changed files with 4 additions and 4 deletions
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2
src/sna/kgem.c
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@ -467,7 +467,7 @@ void kgem_init(struct kgem *kgem, int fd, struct pci_device *dev, int gen)
kgem->wedged = drmCommandNone(kgem->fd, DRM_I915_GEM_THROTTLE) == -EIO;
kgem->wedged |= DBG_NO_HW;
kgem->cpu_cache_pages = cpu_cache_size() >> 12;
kgem->half_cpu_cache_pages = cpu_cache_size() >> 13;
list_init(&kgem->partial);
list_init(&kgem->requests);

2
src/sna/kgem.h
View File

@ -130,7 +130,7 @@ struct kgem {
uint32_t has_relaxed_fencing :1;
uint16_t fence_max;
uint16_t cpu_cache_pages;
uint16_t half_cpu_cache_pages;
uint32_t aperture_high, aperture_low, aperture;
uint32_t aperture_fenced, aperture_mappable;
uint32_t max_object_size;

4
src/sna/sna_accel.c
View File

@ -621,7 +621,7 @@ static inline bool pixmap_inplace(struct sna *sna,
return true;
return (pixmap->devKind * pixmap->drawable.height >> 12) >
sna->kgem.cpu_cache_pages;
sna->kgem.half_cpu_cache_pages;
}
bool
@ -783,7 +783,7 @@ static inline bool region_inplace(struct sna *sna,
return ((region->extents.x2 - region->extents.x1) *
(region->extents.y2 - region->extents.y1) *
pixmap->drawable.bitsPerPixel >> 15)
> sna->kgem.cpu_cache_pages;
> sna->kgem.half_cpu_cache_pages;
}
bool