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radeon: add mtrr support for VRAM aperture.

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Dave Airlie 2008-11-03 09:52:25 +10:00
parent 2b9a7d5381
commit 0e1df6216e
2 changed files with 9 additions and 0 deletions
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6
linux-core/radeon_gem.c
View File

@ -947,6 +947,10 @@ void radeon_init_memory_map(struct drm_device *dev)
- dev_priv->fb_location;
}
/* add an MTRR for the VRAM */
dev_priv->aper_size = aper_size;
dev_priv->vram_mtrr = mtrr_add(dev_priv->fb_aper_offset, dev_priv->aper_size, MTRR_TYPE_WRCOMB, 1);
}
/* init memory manager - start with all of VRAM and a 32MB GART aperture for now */
@ -1037,6 +1041,8 @@ void radeon_gem_mm_fini(struct drm_device *dev)
DRM_DEBUG("delaying takedown of VRAM memory\n");
}
if (dev_priv->vram_mtrr)
mtrr_del(dev_priv->vram_mtrr, dev_priv->fb_aper_offset, dev_priv->aper_size);
mutex_unlock(&dev->struct_mutex);
drm_bo_driver_finish(dev);

3
shared-core/radeon_drv.h
View File

@ -462,6 +462,9 @@ typedef struct drm_radeon_private {
struct radeon_pm_regs pmregs;
int irq_emitted;
atomic_t irq_received;
uint32_t aper_size;
int vram_mtrr;
} drm_radeon_private_t;
typedef struct drm_radeon_buf_priv {