UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/i915/uc: WOPCM programming errors are not always real 

WOPCM programming error might be due to inserted earlier probe
failure that could affects HuC firmware loading and thus impacts
result of WOPCM partitioning that would be now incompatible with
previously programmed values.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190807170034.8440-7-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2019-08-07 17:00:33 +00:00 committed by Chris Wilson
parent d4b2cfb8c2
commit a0752c8708
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/i915/gt/uc/intel_uc.c
View File

@ -415,11 +415,13 @@ static int uc_init_wopcm(struct intel_uc *uc)
return 0;
err_out:
DRM_ERROR("Failed to init uC WOPCM registers:\n");
DRM_ERROR("DMA_GUC_WOPCM_OFFSET=%#x\n",
intel_uncore_read(uncore, DMA_GUC_WOPCM_OFFSET));
DRM_ERROR("GUC_WOPCM_SIZE=%#x\n",
intel_uncore_read(uncore, GUC_WOPCM_SIZE));
i915_probe_error(gt->i915, "Failed to init uC WOPCM registers!\n");
i915_probe_error(gt->i915, "%s(%#x)=%#x\n", "DMA_GUC_WOPCM_OFFSET",
i915_mmio_reg_offset(DMA_GUC_WOPCM_OFFSET),
intel_uncore_read(uncore, DMA_GUC_WOPCM_OFFSET));
i915_probe_error(gt->i915, "%s(%#x)=%#x\n", "GUC_WOPCM_SIZE",
i915_mmio_reg_offset(GUC_WOPCM_SIZE),
intel_uncore_read(uncore, GUC_WOPCM_SIZE));
return err;
}