Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 5f399f11 authored by Ping Gao's avatar Ping Gao Committed by Zhenyu Wang
Browse files

drm/i915/gvt: add write vreg in MMIO DMA_CTRL handler 



Missing write_vreg in DMA_CTRL write handler would make obsolete
value return when read vreg.

v2: get data from vreg after updating it.

Signed-off-by: default avatarPing Gao <ping.a.gao@intel.com>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent 337d0665

drivers/gpu/drm/i915/gvt/handlers.c

+4 −1
Original line number Diff line number Diff line
@@ -1158,7 +1158,10 @@ static int fpga_dbg_mmio_write(struct intel_vgpu *vgpu, 
static int dma_ctrl_write(struct intel_vgpu *vgpu, unsigned int offset,

		void *p_data, unsigned int bytes)

{

	u32 mode = *(u32 *)p_data;

	u32 mode;



	write_vreg(vgpu, offset, p_data, bytes);

	mode = vgpu_vreg(vgpu, offset);



	if (GFX_MODE_BIT_SET_IN_MASK(mode, START_DMA)) {

		WARN_ONCE(1, "VM(%d): iGVT-g doesn't supporte GuC\n",