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authorChris Wilson <chris@chris-wilson.co.uk>2011-02-25 22:26:23 (GMT)
committerChris Wilson <chris@chris-wilson.co.uk>2011-03-02 09:40:14 (GMT)
commit4cbf74ccf8362e99b2bdf1e66112a480c79ecacf (patch)
tree4420fa9a2626fa080de02fa5566aca4f524b792f /drivers/gpu
parent8d3c3ddfa85837e24fad6fa39318617cbb59e843 (diff)
downloadlinux-fsl-qoriq-4cbf74ccf8362e99b2bdf1e66112a480c79ecacf.tar.xz
drm/i915: don't store the reg value for HWS_PGA
It is trivially computable from the real physical address so no need to store both. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c19
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h1
2 files changed, 13 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 8924b4b..7273037 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -43,6 +43,17 @@
#include <linux/slab.h>
#include <acpi/video.h>
+static void i915_write_hws_pga(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ u32 addr;
+
+ addr = dev_priv->status_page_dmah->busaddr;
+ if (INTEL_INFO(dev)->gen >= 4)
+ addr |= (dev_priv->status_page_dmah->busaddr >> 28) & 0xf0;
+ I915_WRITE(HWS_PGA, addr);
+}
+
/**
* Sets up the hardware status page for devices that need a physical address
* in the register.
@@ -62,15 +73,11 @@ static int i915_init_phys_hws(struct drm_device *dev)
}
ring->status_page.page_addr =
(void __force __iomem *)dev_priv->status_page_dmah->vaddr;
- dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
memset_io(ring->status_page.page_addr, 0, PAGE_SIZE);
- if (INTEL_INFO(dev)->gen >= 4)
- dev_priv->dma_status_page |= (dev_priv->dma_status_page >> 28) &
- 0xf0;
+ i915_write_hws_pga(dev);
- I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
DRM_DEBUG_DRIVER("Enabled hardware status page\n");
return 0;
}
@@ -217,7 +224,7 @@ static int i915_dma_resume(struct drm_device * dev)
if (ring->status_page.gfx_addr != 0)
intel_ring_setup_status_page(ring);
else
- I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
+ i915_write_hws_pga(dev);
DRM_DEBUG_DRIVER("Enabled hardware status page\n");
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7a4725c..fd41b86 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -274,7 +274,6 @@ typedef struct drm_i915_private {
uint32_t next_seqno;
drm_dma_handle_t *status_page_dmah;
- dma_addr_t dma_status_page;
uint32_t counter;
drm_local_map_t hws_map;
struct drm_i915_gem_object *pwrctx;