提交 83796f26 编写于 作者: M Michał Winiarski 提交者: Chris Wilson

drm/i915/guc: Make sure vma containing firmware is GuC mappable

Since commit 4741da92 ("drm/i915/guc: Assert that all GGTT offsets used
by the GuC are mappable"), we're asserting that GuC firmware is in the
GuC mappable range.
Except we're not pinning the object with bias, which means it's possible
to trigger this assert. Let's add a proper bias.

Fixes: 4741da92 ("drm/i915/guc: Assert that all GGTT offsets used by the GuC are mappable")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: NMichał Winiarski <michal.winiarski@intel.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Tested-by: NTomi Sarvela <tomi.p.sarvela@intel.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170111151739.28965-1-michal.winiarski@intel.com
上级 dd48e8ed
......@@ -360,7 +360,8 @@ static int guc_ucode_xfer(struct drm_i915_private *dev_priv)
return ret;
}
vma = i915_gem_object_ggtt_pin(guc_fw->guc_fw_obj, NULL, 0, 0, 0);
vma = i915_gem_object_ggtt_pin(guc_fw->guc_fw_obj, NULL, 0, 0,
PIN_OFFSET_BIAS | GUC_WOPCM_TOP);
if (IS_ERR(vma)) {
DRM_DEBUG_DRIVER("pin failed %d\n", (int)PTR_ERR(vma));
return PTR_ERR(vma);
......
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