From 550dd77ebb6360120269d9a7102ae2c0cea41290 Mon Sep 17 00:00:00 2001 From: Xiaoguang Chen Date: Thu, 24 Nov 2016 13:13:00 +0800 Subject: [PATCH] drm/i915/gvt: fix getting 64bit bar size error For 64bit bar while reading the higher 32bit the value should be returned directly. In the current implementation the higher 32bit value was discarded and not written to the cfg space of vgpu which lead to an incorrect bar size. Signed-off-by: Xiaoguang Chen Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/gvt.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 3d4223e..b1a7c8d 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -361,6 +361,8 @@ static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu, * leave the bit 3 - bit 0 unchanged. */ *pval = (val & GENMASK(31, 4)) | (*pval & GENMASK(3, 0)); + } else { + *pval = val; } } -- 2.7.4