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authorPing Gao <ping.a.gao@intel.com>2016-10-27 14:37:41 +0800
committerZhenyu Wang <zhenyuw@linux.intel.com>2016-11-07 14:16:59 +0800
commitf24940e00062f47f1e45fb20c405c2ed6bc006a3 (patch)
tree870c8e20770d28ce62ebd3e7225be77fb53ee873 /drivers/gpu/drm/i915/gvt/handlers.c
parentdrm/i915/gvt: add write vreg in MMIO DMA_CTRL handler (diff)
downloadlinux-dev-f24940e00062f47f1e45fb20c405c2ed6bc006a3.tar.xz
linux-dev-f24940e00062f47f1e45fb20c405c2ed6bc006a3.zip
drm/i915/gvt: correct the emulation in TLB control handler
Need a explicit write_vreg in TLB MMIO write handler, beside that TLB vreg should update correspondingly following HW status to do correct emulation. Signed-off-by: Ping Gao <ping.a.gao@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/handlers.c')
-rw-r--r--drivers/gpu/drm/i915/gvt/handlers.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 0b62f4621a85..2d97fb78343e 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -1370,6 +1370,8 @@ static int gvt_reg_tlb_control_handler(struct intel_vgpu *vgpu,
int rc = 0;
unsigned int id = 0;
+ write_vreg(vgpu, offset, p_data, bytes);
+
switch (offset) {
case 0x4260:
id = RCS;