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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-02-09 17:15:46 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-02-09 21:25:11 +0100 |
| commit | 1d2a314c97ceaf383de8e23cdde46729927d433c (patch) | |
| tree | 31df6c81a19d80b3611c39cb17c613561a9f0b0b /drivers/gpu/drm/i915/i915_drv.h | |
| parent | 428ccb21b740f603a6a1f08cbe6d935fb3177620 (diff) | |
| download | op-kernel-dev-1d2a314c97ceaf383de8e23cdde46729927d433c.zip op-kernel-dev-1d2a314c97ceaf383de8e23cdde46729927d433c.tar.gz | |
drm/i915: initialization/teardown for the aliasing ppgtt
This just adds the setup and teardown code for the ppgtt PDE and the
last-level pagetables, which are fixed for the entire lifetime, at
least for the moment.
v2: Kill the stray debug printk noted by and improve the pte
definitions as suggested by Chris Wilson.
v3: Clean up the aperture stealing code as noted by Ben Widawsky.
v4: Paint the init code in a more pleasing colour as suggest by Chris
Wilson.
v5: Explain the magic numbers noticed by Ben Widawsky.
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 28740bc..03a9e49 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -258,6 +258,16 @@ struct intel_device_info { u8 has_llc:1; }; +#define I915_PPGTT_PD_ENTRIES 512 +#define I915_PPGTT_PT_ENTRIES 1024 +struct i915_hw_ppgtt { + unsigned num_pd_entries; + struct page **pt_pages; + uint32_t pd_offset; + dma_addr_t *pt_dma_addr; + dma_addr_t scratch_page_dma_addr; +}; + enum no_fbc_reason { FBC_NO_OUTPUT, /* no outputs enabled to compress */ FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */ @@ -578,6 +588,9 @@ typedef struct drm_i915_private { struct io_mapping *gtt_mapping; int gtt_mtrr; + /** PPGTT used for aliasing the PPGTT with the GTT */ + struct i915_hw_ppgtt *aliasing_ppgtt; + struct shrinker inactive_shrinker; /** @@ -973,6 +986,8 @@ struct drm_i915_file_private { #define HAS_LLC(dev) (INTEL_INFO(dev)->has_llc) #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws) +#define HAS_ALIASING_PPGTT(dev) (INTEL_INFO(dev)->gen >=6) + #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay) #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical) @@ -1232,6 +1247,9 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, enum i915_cache_level cache_level); /* i915_gem_gtt.c */ +int __must_check i915_gem_init_aliasing_ppgtt(struct drm_device *dev); +void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev); + void i915_gem_restore_gtt_mappings(struct drm_device *dev); int __must_check i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj); void i915_gem_gtt_rebind_object(struct drm_i915_gem_object *obj, |
