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| author |   Abdiel Janulgue <abdiel.janulgue@linux.intel.com> | 2022-02-19 00:17:51 +0530 |
|---|---|---|
| committer |   Lucas De Marchi <lucas.demarchi@intel.com> | 2022-02-19 22:42:07 -0800 |
| commit | 4b31b8e34460af9b2eff0d389a6caefcb694a1bc (patch) | |
| tree | 48e05ba87dc7ada5b15bec5dfde465b0fce08d3b /drivers/gpu/drm/i915/i915_reg.h | |
| parent | drm/i915/xehpsdv: Add has_flat_ccs to device info (diff) | |
| download | linux-dev-4b31b8e34460af9b2eff0d389a6caefcb694a1bc.tar.xz linux-dev-4b31b8e34460af9b2eff0d389a6caefcb694a1bc.zip | |
drm/i915/lmem: Enable lmem for platforms with Flat CCS
A portion of device memory is reserved for Flat CCS so usable
device memory will be reduced by size of Flat CCS. Size of
Flat CCS is specified in “XEHPSDV_FLAT_CCS_BASE_ADDR”.
So to get effective device memory we need to subtract
total device memory by Flat CCS memory size.
v2:
Addressed the small bar related issue [Matt]
Removed a reduntant check [Matt]
v3:
removed a variable
s/DRM_ERROR/drm_err [Lucas]
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220218184752.7524-15-ramalingam.c@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index f95bbb10b6f4..4b95c94084d9 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -12645,6 +12645,9 @@ enum skl_power_gate { #define SGGI_DIS REG_BIT(15) #define SGR_DIS REG_BIT(13) +#define XEHPSDV_FLAT_CCS_BASE_ADDR _MMIO(0x4910) +#define XEHPSDV_CCS_BASE_SHIFT 8 + /* gamt regs */ #define GEN8_L3_LRA_1_GPGPU _MMIO(0x4dd4) #define GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_BDW 0x67F1427F /* max/min for LRA1/2 */ |