diff options
| 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_reg.h | |
| parent | 428ccb21b740f603a6a1f08cbe6d935fb3177620 (diff) | |
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_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 89816fe3f9d..92eb404d063 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -92,6 +92,22 @@ #define GEN6_GRDOM_MEDIA (1 << 2) #define GEN6_GRDOM_BLT (1 << 3) +/* PPGTT stuff */ +#define GEN6_GTT_ADDR_ENCODE(addr) ((addr) | (((addr) >> 28) & 0xff0)) + +#define GEN6_PDE_VALID (1 << 0) +#define GEN6_PDE_LARGE_PAGE (2 << 0) /* use 32kb pages */ +/* gen6+ has bit 11-4 for physical addr bit 39-32 */ +#define GEN6_PDE_ADDR_ENCODE(addr) GEN6_GTT_ADDR_ENCODE(addr) + +#define GEN6_PTE_VALID (1 << 0) +#define GEN6_PTE_UNCACHED (1 << 1) +#define GEN6_PTE_CACHE_LLC (2 << 1) +#define GEN6_PTE_CACHE_LLC_MLC (3 << 1) +#define GEN6_PTE_CACHE_BITS (3 << 1) +#define GEN6_PTE_GFDT (1 << 3) +#define GEN6_PTE_ADDR_ENCODE(addr) GEN6_GTT_ADDR_ENCODE(addr) + /* VGA stuff */ #define VGA_ST01_MDA 0x3ba |