diff options
| author | Zhi Wang <zhi.a.wang@intel.com> | 2017-09-13 00:31:29 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-11-16 11:48:19 +0800 |
| commit | ad1d36369b07f6b9db81897802ee5d8764eaa922 (patch) | |
| tree | ae4dfd7000afb25cd520b4d57c4d8b6b22795536 /drivers/gpu/drm/i915/gvt/handlers.c | |
| parent | d0d51282b88e11a1aa71040b21a9a8cae584a1d4 (diff) | |
drm/i915/gvt: Introduce vGPU submission ops
Introduce vGPU submission ops to support easy switching submission mode
of one vGPU between different OSes.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/handlers.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/handlers.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index acc1cf4fa6f5..5438dafea7a4 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1471,9 +1471,11 @@ static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, static int ring_mode_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes) { + struct intel_vgpu_submission *s = &vgpu->submission; u32 data = *(u32 *)p_data; int ring_id = render_mmio_to_ring_id(vgpu->gvt, offset); bool enable_execlist; + int ret; write_vreg(vgpu, offset, p_data, bytes); @@ -1495,8 +1497,18 @@ static int ring_mode_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, (enable_execlist ? "enabling" : "disabling"), ring_id); - if (enable_execlist) - intel_vgpu_start_schedule(vgpu); + if (!enable_execlist) + return 0; + + if (s->active) + return 0; + + ret = intel_vgpu_select_submission_ops(vgpu, + INTEL_VGPU_EXECLIST_SUBMISSION); + if (ret) + return ret; + + intel_vgpu_start_schedule(vgpu); } return 0; } |