diff options
| author | Michael Cheng <michael.cheng@intel.com> | 2021-12-06 13:52:45 -0800 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2021-12-06 22:21:03 -0800 |
| commit | 5f97816762722cb08a4e0a124fec02abe0a2208e (patch) | |
| tree | e143f43610e27e9dc9b743e36125ba4dfc287478 /drivers/gpu/drm/i915/gt/intel_gtt.h | |
| parent | 8722ded49ce8a0c706b373e8087eb810684962ff (diff) | |
drm/i915: Introduce new macros for i915 PTE
Certain functions within i915 uses macros that are defined for
specific architectures by the mmu, such as _PAGE_RW and _PAGE_PRESENT
(Some architectures don't even have these macros defined, like ARM64).
Instead of re-using bits defined for the CPU, we should use bits
defined for i915. This patch introduces two new 64 bit macros,
GEN8_PAGE_PRESENT and GEN8_PAGE_RW, to check for bits 0 and 1 and, to
replace all occurrences of _PAGE_RW and _PAGE_PRESENT within i915.
v2(Michael Cheng): Use GEN8_ instead of I915_
Signed-off-by: Michael Cheng <michael.cheng@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
[ Move defines together with other GEN8 defines ]
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211206215245.513677-2-michael.cheng@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gtt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gtt.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h index bc6750263359..d8377ed59636 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.h +++ b/drivers/gpu/drm/i915/gt/intel_gtt.h @@ -135,6 +135,9 @@ typedef u64 gen8_pte_t; #define GEN8_PPAT_ELLC_OVERRIDE (0<<2) #define GEN8_PPAT(i, x) ((u64)(x) << ((i) * 8)) +#define GEN8_PAGE_PRESENT BIT_ULL(0) +#define GEN8_PAGE_RW BIT_ULL(1) + #define GEN8_PDE_IPS_64K BIT(11) #define GEN8_PDE_PS_2M BIT(7) |