diff options
| author | Akeem G Abodunrin <akeem.g.abodunrin@intel.com> | 2022-03-15 21:14:20 +0300 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2022-03-16 20:50:31 +0300 |
| commit | b8ca8fef58d4656859a46a9d0e84821d3b6551b1 (patch) | |
| tree | dccbb9cd131584bfca6ca9f2200a0abe2a66a8b6 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | 56eda725c929da5d0a0141a923151d418856b364 (diff) | |
| download | linux-b8ca8fef58d4656859a46a9d0e84821d3b6551b1.tar.xz | |
drm/i915/stolen: don't treat small BAR as an error
On client platforms with reduced LMEM BAR, we should be able to continue
with driver load with reduced io_size. Instead of using the BAR size to
determine the how large stolen should be, we should instead use the
ADDR_RANGE register to figure this out(at least on platforms like DG2).
For simplicity we don't attempt to support partially mappable stolen.
v2: rearrange the io_mapping_init_wc slightly, since the stolen setup
might result in reduced io_size.
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Co-developed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-2-matthew.auld@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 4da10e131216..3cdcd25ff401 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -8464,6 +8464,9 @@ enum skl_power_gate { #define SGGI_DIS REG_BIT(15) #define SGR_DIS REG_BIT(13) +#define XEHPSDV_TILE0_ADDR_RANGE _MMIO(0x4900) +#define XEHPSDV_TILE_LMEM_RANGE_SHIFT 8 + #define XEHPSDV_FLAT_CCS_BASE_ADDR _MMIO(0x4910) #define XEHPSDV_CCS_BASE_SHIFT 8 |