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| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2018-05-04 13:32:51 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-07-10 16:28:47 -0700 |
| commit | db0c8d8b031d2b5960f6407f7f2ca20e97e00605 (patch) | |
| tree | 81bea7313ceeb9c9199d9ccfbf87763d97d399a0 /include/drm/i915_drm.h | |
| parent | 7ab87ede5078af1daccf26951096e16ac16e19cb (diff) | |
| download | linux-db0c8d8b031d2b5960f6407f7f2ca20e97e00605.tar.bz2 | |
x86/gpu: reserve ICL's graphics stolen memory
ICL changes the registers and addresses to 64 bits.
I also briefly looked at implementing an u64 version of the PCI config
read functions, but I concluded this wouldn't be trivial, so it's not
worth doing it for a single user that can't have any racing problems
while reading the register in two separate operations.
v2:
- Scrub the development (non-public) changelog (Joonas).
- Remove the i915.ko bits so this can be easily backported in order
to properly avoid stolen memory even on machines without i915.ko
(Joonas).
- CC stable for the reasons above.
Issue: VIZ-9250
CC: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Fixes: 412310019a20 ("drm/i915/icl: Add initial Icelake definitions.")
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180504203252.28048-1-paulo.r.zanoni@intel.com
Diffstat (limited to 'include/drm/i915_drm.h')
| -rw-r--r-- | include/drm/i915_drm.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index c9e5a6621b95..c44703f471b3 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -95,7 +95,9 @@ extern struct resource intel_graphics_stolen_res; #define I845_TSEG_SIZE_512K (2 << 1) #define I845_TSEG_SIZE_1M (3 << 1) -#define INTEL_BSM 0x5c +#define INTEL_BSM 0x5c +#define INTEL_GEN11_BSM_DW0 0xc0 +#define INTEL_GEN11_BSM_DW1 0xc4 #define INTEL_BSM_MASK (-(1u << 20)) #endif /* _I915_DRM_H_ */ |