diff options
| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2017-02-28 17:28:10 +0200 |
|---|---|---|
| committer | Mika Kuoppala <mika.kuoppala@intel.com> | 2017-03-03 16:46:23 +0200 |
| commit | e71677698b27f3b460d44f67389b43c4353522dd (patch) | |
| tree | ec522960d997a6903318ff97b7436d1375769b4f /drivers/gpu/drm/i915/i915_gem_gtt.h | |
| parent | 1e6437b0e064746a4a2b6b3578c639797cafe4b1 (diff) | |
| download | linux-e71677698b27f3b460d44f67389b43c4353522dd.tar.bz2 | |
drm/i915: Avoid using word legacy with ppgtt
The term legacy is subjective. Use 3lvl and 4lvl
where appropriate.
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1488295691-9404-4-git-send-email-mika.kuoppala@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.h | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index 562c6329aff6..fb15684c1d83 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -101,13 +101,20 @@ typedef u64 gen8_ppgtt_pml4e_t; #define HSW_GTT_ADDR_ENCODE(addr) ((addr) | (((addr) >> 28) & 0x7f0)) #define HSW_PTE_ADDR_ENCODE(addr) HSW_GTT_ADDR_ENCODE(addr) -/* GEN8 legacy style address is defined as a 3 level page table: +/* GEN8 32b style address is defined as a 3 level page table: * 31:30 | 29:21 | 20:12 | 11:0 * PDPE | PDE | PTE | offset * The difference as compared to normal x86 3 level page table is the PDPEs are * programmed via register. - * - * GEN8 48b legacy style address is defined as a 4 level page table: + */ +#define GEN8_3LVL_PDPES 4 +#define GEN8_PDE_SHIFT 21 +#define GEN8_PDE_MASK 0x1ff +#define GEN8_PTE_SHIFT 12 +#define GEN8_PTE_MASK 0x1ff +#define GEN8_PTES I915_PTES(sizeof(gen8_pte_t)) + +/* GEN8 48b style address is defined as a 4 level page table: * 47:39 | 38:30 | 29:21 | 20:12 | 11:0 * PML4E | PDPE | PDE | PTE | offset */ @@ -118,12 +125,6 @@ typedef u64 gen8_ppgtt_pml4e_t; /* NB: GEN8_PDPE_MASK is untrue for 32b platforms, but it has no impact on 32b page * tables */ #define GEN8_PDPE_MASK 0x1ff -#define GEN8_PDE_SHIFT 21 -#define GEN8_PDE_MASK 0x1ff -#define GEN8_PTE_SHIFT 12 -#define GEN8_PTE_MASK 0x1ff -#define GEN8_LEGACY_PDPES 4 -#define GEN8_PTES I915_PTES(sizeof(gen8_pte_t)) #define PPAT_UNCACHED_INDEX (_PAGE_PWT | _PAGE_PCD) #define PPAT_CACHED_PDE_INDEX 0 /* WB LLC */ @@ -466,7 +467,7 @@ i915_pdpes_per_pdp(const struct i915_address_space *vm) if (i915_vm_is_48bit(vm)) return GEN8_PML4ES_PER_PML4; - return GEN8_LEGACY_PDPES; + return GEN8_3LVL_PDPES; } /* Equivalent to the gen6 version, For each pde iterates over every pde |