Quoting Abdiel Janulgue (2019-08-26 13:21:00)
> + for (i = 0; i < size >> PAGE_SHIFT; i++) {
> + struct page *page = i915_gem_object_get_page(obj, i);
> +
> + vmf_ret = vmf_insert_pfn(area,
> + (unsigned long)area->vm_start + i *
> PAGE_SIZE,
> + page_to_pfn(page));
> + if (vmf_ret & VM_FAULT_ERROR) {
> + vmf_ret =
> i915_error_to_vmf_fault(vm_fault_to_errno(vmf_ret, 0),
> + &dev_priv->gt);
Sigh. You take a mm/, run it through the internal error convertor that
*only* applies to i915 errors, and then return the original fault code.
-Chris
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