From e5cedf9859b29642f8908f7e8949d983c748e2d0 Mon Sep 17 00:00:00 2001 From: Nirmoy Das Date: Fri, 23 Sep 2022 16:37:30 +0200 Subject: [PATCH] drm/i915: Improve debug print in vm_fault_ttm Print the error code returned by __i915_ttm_migrate() for better debuggability. v2: Fix kernel test robot warning. v3: Fix dim checkpatch warning. References: https://gitlab.freedesktop.org/drm/intel/-/issues/6889 Acked-by: Matthew Auld Signed-off-by: Nirmoy Das Signed-off-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/msgid/20220923143730.13498-1-nirmoy.das@intel.com --- drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index 72ba56e638c8..107bd0d8d06f 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -1073,7 +1073,8 @@ static vm_fault_t vm_fault_ttm(struct vm_fault *vmf) } if (err) { - drm_dbg(dev, "Unable to make resource CPU accessible\n"); + drm_dbg(dev, "Unable to make resource CPU accessible(err = %pe)\n", + ERR_PTR(err)); dma_resv_unlock(bo->base.resv); ret = VM_FAULT_SIGBUS; goto out_rpm;