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| author | Zhi Wang <zhi.a.wang@intel.com> | 2016-09-02 08:33:29 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2016-10-14 13:12:59 +0300 |
| commit | e39c5add322184de3be052d438dfd24375bfeaea (patch) | |
| tree | a8724bab7dabd340016a91f0b2b0fa8c86cfda0c /drivers/gpu/drm/i915/gvt/vgpu.c | |
| parent | 4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8 (diff) | |
| download | linux-e39c5add322184de3be052d438dfd24375bfeaea.tar.xz | |
drm/i915/gvt: vGPU MMIO virtualization
This patch introduces the generic vGPU MMIO emulation intercept
framework. The MPT modules will request GVT-g core logic to
emulate MMIO read/write through IO emulation operations
callback when hypervisor trapped a guest GTTMMIO read/write.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/vgpu.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/vgpu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index 53308698929a..2d4aaa781757 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -52,6 +52,11 @@ static int setup_vgpu_mmio(struct intel_vgpu *vgpu) memcpy(vgpu->mmio.vreg, gvt->firmware.mmio, info->mmio_size); memcpy(vgpu->mmio.sreg, gvt->firmware.mmio, info->mmio_size); + + vgpu_vreg(vgpu, GEN6_GT_THREAD_STATUS_REG) = 0; + + /* set the bit 0:2(Core C-State ) to C0 */ + vgpu_vreg(vgpu, GEN6_GT_CORE_STATUS) = 0; return 0; } |