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path: root/drivers/gpu/drm/i915/gvt/cmd_parser.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gvt/cmd_parser.c')
-rw-r--r--drivers/gpu/drm/i915/gvt/cmd_parser.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index b51c05d03f14..7f562410f9cf 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -862,6 +862,7 @@ static int cmd_reg_handler(struct parser_exec_state *s,
{
struct intel_vgpu *vgpu = s->vgpu;
struct intel_gvt *gvt = vgpu->gvt;
+ u32 ctx_sr_ctl;
if (offset + 4 > gvt->device_info.mmio_size) {
gvt_vgpu_err("%s access to (%x) outside of MMIO range\n",
@@ -894,6 +895,28 @@ static int cmd_reg_handler(struct parser_exec_state *s,
patch_value(s, cmd_ptr(s, index), VGT_PVINFO_PAGE);
}
+ /* TODO
+ * Right now only scan LRI command on KBL and in inhibit context.
+ * It's good enough to support initializing mmio by lri command in
+ * vgpu inhibit context on KBL.
+ */
+ if (IS_KABYLAKE(s->vgpu->gvt->dev_priv) &&
+ intel_gvt_mmio_is_in_ctx(gvt, offset) &&
+ !strncmp(cmd, "lri", 3)) {
+ intel_gvt_hypervisor_read_gpa(s->vgpu,
+ s->workload->ring_context_gpa + 12, &ctx_sr_ctl, 4);
+ /* check inhibit context */
+ if (ctx_sr_ctl & 1) {
+ u32 data = cmd_val(s, index + 1);
+
+ if (intel_gvt_mmio_has_mode_mask(s->vgpu->gvt, offset))
+ intel_vgpu_mask_mmio_write(vgpu,
+ offset, &data, 4);
+ else
+ vgpu_vreg(vgpu, offset) = data;
+ }
+ }
+
/* TODO: Update the global mask if this MMIO is a masked-MMIO */
intel_gvt_mmio_set_cmd_accessed(gvt, offset);
return 0;