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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-11-16 11:43:20 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-11-16 13:47:40 +0100 |
| commit | 6b8294a4d392c2c9f8867e8505511f3fc9419ba7 (patch) | |
| tree | 19108a7b37d5167877f2ae44b4d27fe27f917a90 /drivers/gpu/drm/i915/i915_dma.c | |
| parent | d640c4b09a5d83a8167eb09d22bd89d9fa7e3b91 (diff) | |
| download | linux-stable-6b8294a4d392c2c9f8867e8505511f3fc9419ba7.tar.gz linux-stable-6b8294a4d392c2c9f8867e8505511f3fc9419ba7.tar.bz2 linux-stable-6b8294a4d392c2c9f8867e8505511f3fc9419ba7.zip | |
drm/i915: Restore physical HWS_PGA after resume
By always setting up the HWS register for both physical and virtual
address variations during render ring we can reduce the number of
different special cases that get set up at varying different times
during module load.
Fixes regression from
commit c630119f43471a8ece356b01dabf07f944f453b3
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Oct 17 11:32:57 2012 +0200
drm/i915: don't save/restore HWS_PGA reg for kms
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 1eea5be43617..14396605fd29 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -104,32 +104,6 @@ static void i915_write_hws_pga(struct drm_device *dev) } /** - * Sets up the hardware status page for devices that need a physical address - * in the register. - */ -static int i915_init_phys_hws(struct drm_device *dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - - /* Program Hardware Status Page */ - dev_priv->status_page_dmah = - drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE); - - if (!dev_priv->status_page_dmah) { - DRM_ERROR("Can not allocate hardware status page\n"); - return -ENOMEM; - } - - memset_io((void __force __iomem *)dev_priv->status_page_dmah->vaddr, - 0, PAGE_SIZE); - - i915_write_hws_pga(dev); - - DRM_DEBUG_DRIVER("Enabled hardware status page\n"); - return 0; -} - -/** * Frees the hardware status page, whether it's a physical address or a virtual * address set up by the X Server. */ @@ -1588,13 +1562,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) i915_gem_load(dev); - /* Init HWS */ - if (!I915_NEED_GFX_HWS(dev)) { - ret = i915_init_phys_hws(dev); - if (ret) - goto out_gem_unload; - } - /* On the 945G/GM, the chipset reports the MSI capability on the * integrated graphics even though the support isn't actually there * according to the published specs. It doesn't appear to function |