diff options
| author | Nirmoy Das <nirmoy.das@intel.com> | 2022-05-11 17:37:45 +0200 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2022-05-17 09:34:45 +0100 |
| commit | 8f6de23184452793e60945a26ac40db435d7798d (patch) | |
| tree | 0fc8bc8980e5d47e5a3747efb0bdb1fccd75907a /drivers/gpu/drm/i915/gt/intel_region_lmem.c | |
| parent | d158367c31f0f87567d2e8a0955287dc005d40e5 (diff) | |
| download | linux-8f6de23184452793e60945a26ac40db435d7798d.tar.bz2 | |
drm/i915: determine lmem_size properly
Determine lmem_size using ADDR_RANGE register so that lmem_setup()
works on platform with small-bar as well.
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511153746.14142-2-nirmoy.das@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_region_lmem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_region_lmem.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c index 5a7c403d718a..cd105ec10429 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c @@ -101,9 +101,13 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) return ERR_PTR(-ENODEV); if (HAS_FLAT_CCS(i915)) { + resource_size_t lmem_range; u64 tile_stolen, flat_ccs_base; - lmem_size = pci_resource_len(pdev, 2); + lmem_range = intel_gt_read_register(&i915->gt0, XEHPSDV_TILE0_ADDR_RANGE) & 0xFFFF; + lmem_size = lmem_range >> XEHPSDV_TILE_LMEM_RANGE_SHIFT; + lmem_size *= SZ_1G; + flat_ccs_base = intel_gt_read_register(gt, XEHPSDV_FLAT_CCS_BASE_ADDR); flat_ccs_base = (flat_ccs_base >> XEHPSDV_CCS_BASE_SHIFT) * SZ_64K; |