diff options
| author | Hang Yuan <hang.yuan@linux.intel.com> | 2018-07-03 17:31:17 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2018-07-05 15:33:37 +0800 |
| commit | 6cef21a1964933b77c855c55bac2723053cc676d (patch) | |
| tree | bdf2e1fe62316d01c8fb44d1bae88e0b87cdb583 /drivers/gpu/drm/i915/gvt/mmio_context.c | |
| parent | a4cae23cc05ccec749c2fc70fa9d8cda7c582319 (diff) | |
drm/i915/gvt: update vreg on inhibit context lri command
Commit cd7e 61b9"init mmio by lri command in vgpu inhibit context"
initializes registers saved/restored in context with its vreg value
through lri command in ring buffer. It relies on vreg got updated
on every guest access. There is a case found that Linux guest uses
lri command in inhibit-ctx to update the register. This patch adds
vreg update on this case.
v2: move mmio_attribute functions to gvt.h (Zhenyu)
v3: use mask_mmio_write in vreg update
v4: refine codes and add more comments (Zhenyu)
Fixes: cd7e61b9("drm/i915/gvt: init mmio by lri command in vgpu inhibit context")
Signed-off-by: Hang Yuan <hang.yuan@linux.intel.com>
Signed-off-by: Weinan Li <weinan.z.li@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/mmio_context.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/mmio_context.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gvt/mmio_context.c b/drivers/gpu/drm/i915/gvt/mmio_context.c index 0f949554d118..5ca9caf7552a 100644 --- a/drivers/gpu/drm/i915/gvt/mmio_context.c +++ b/drivers/gpu/drm/i915/gvt/mmio_context.c @@ -581,7 +581,9 @@ void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt) for (mmio = gvt->engine_mmio_list.mmio; i915_mmio_reg_valid(mmio->reg); mmio++) { - if (mmio->in_context) + if (mmio->in_context) { gvt->engine_mmio_list.ctx_mmio_count[mmio->ring_id]++; + intel_gvt_mmio_set_in_ctx(gvt, mmio->reg.reg); + } } } |