From: Ben Widawsky Date: Fri, 18 Jan 2013 20:30:32 +0000 (-0800) Subject: drm/i915: Remove scratch page from shared X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9c61a32d31a55c8c6e590d83ae5645e14fde09f2;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm/i915: Remove scratch page from shared We already had a mapping in both (minus the phys_addr in AGP). Reviewed-by: Rodrigo Vivi Signed-off-by: Ben Widawsky Signed-off-by: Daniel Vetter --- diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 12c31026eb56..7fcee5c2e986 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -75,6 +75,7 @@ static struct _intel_private { struct resource ifp_resource; int resource_valid; struct page *scratch_page; + phys_addr_t scratch_page_dma; int refcount; } intel_private; @@ -297,9 +298,9 @@ static int intel_gtt_setup_scratch_page(void) if (pci_dma_mapping_error(intel_private.pcidev, dma_addr)) return -EINVAL; - intel_private.base.scratch_page_dma = dma_addr; + intel_private.scratch_page_dma = dma_addr; } else - intel_private.base.scratch_page_dma = page_to_phys(page); + intel_private.scratch_page_dma = page_to_phys(page); intel_private.scratch_page = page; @@ -546,7 +547,7 @@ static unsigned int intel_gtt_mappable_entries(void) static void intel_gtt_teardown_scratch_page(void) { set_pages_wb(intel_private.scratch_page, 1); - pci_unmap_page(intel_private.pcidev, intel_private.base.scratch_page_dma, + pci_unmap_page(intel_private.pcidev, intel_private.scratch_page_dma, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); put_page(intel_private.scratch_page); __free_page(intel_private.scratch_page); @@ -891,7 +892,7 @@ void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries) unsigned int i; for (i = first_entry; i < (first_entry + num_entries); i++) { - intel_private.driver->write_entry(intel_private.base.scratch_page_dma, + intel_private.driver->write_entry(intel_private.scratch_page_dma, i, 0); } readl(intel_private.gtt+i-1); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1fe802f4df13..3189034deeb8 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -383,6 +383,8 @@ struct i915_gtt { void __iomem *gsm; bool do_idle_maps; + dma_addr_t scratch_page_dma; + struct page *scratch_page; }; #define I915_PPGTT_PD_ENTRIES 512 diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 84c521fd11a2..3c1f66ebc245 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -162,7 +162,7 @@ int i915_gem_init_aliasing_ppgtt(struct drm_device *dev) } } - ppgtt->scratch_page_dma_addr = dev_priv->mm.gtt->scratch_page_dma; + ppgtt->scratch_page_dma_addr = dev_priv->gtt.scratch_page_dma; i915_ppgtt_clear_range(ppgtt, 0, ppgtt->num_pd_entries*I915_PPGTT_PT_ENTRIES); @@ -396,7 +396,7 @@ static void i915_ggtt_clear_range(struct drm_device *dev, first_entry, num_entries, max_entries)) num_entries = max_entries; - scratch_pte = pte_encode(dev, dev_priv->mm.gtt->scratch_page_dma, I915_CACHE_LLC); + scratch_pte = pte_encode(dev, dev_priv->gtt.scratch_page_dma, I915_CACHE_LLC); for (i = 0; i < num_entries; i++) iowrite32(scratch_pte, >t_base[i]); readl(gtt_base); @@ -659,8 +659,8 @@ static int setup_scratch_page(struct drm_device *dev) #else dma_addr = page_to_phys(page); #endif - dev_priv->mm.gtt->scratch_page = page; - dev_priv->mm.gtt->scratch_page_dma = dma_addr; + dev_priv->gtt.scratch_page = page; + dev_priv->gtt.scratch_page_dma = dma_addr; return 0; } @@ -668,11 +668,11 @@ static int setup_scratch_page(struct drm_device *dev) static void teardown_scratch_page(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - set_pages_wb(dev_priv->mm.gtt->scratch_page, 1); - pci_unmap_page(dev->pdev, dev_priv->mm.gtt->scratch_page_dma, + set_pages_wb(dev_priv->gtt.scratch_page, 1); + pci_unmap_page(dev->pdev, dev_priv->gtt.scratch_page_dma, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - put_page(dev_priv->mm.gtt->scratch_page); - __free_page(dev_priv->mm.gtt->scratch_page); + put_page(dev_priv->gtt.scratch_page); + __free_page(dev_priv->gtt.scratch_page); } static inline unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl) diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h index 1747aa095f41..c787ee4c4c07 100644 --- a/include/drm/intel-gtt.h +++ b/include/drm/intel-gtt.h @@ -13,9 +13,6 @@ struct intel_gtt { unsigned int gtt_mappable_entries; /* Whether i915 needs to use the dmar apis or not. */ unsigned int needs_dmar : 1; - /* Share the scratch page dma with ppgtts. */ - dma_addr_t scratch_page_dma; - struct page *scratch_page; /* needed for ioremap in drm/i915 */ phys_addr_t gma_bus_addr; } *intel_gtt_get(void);