diff options
| author | Pei Zhang <pei.zhang@intel.com> | 2017-04-07 16:50:16 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-04-12 13:59:33 +0800 |
| commit | efa69d734adbf8a562d58d9fdc3429f2717764e7 (patch) | |
| tree | 10d1f25204c97c4b7660e609daa1c399463367f1 /drivers | |
| parent | fd3bd0a99cffffe476d54edd2eb13b52b1e9a27d (diff) | |
| download | linux-stable-efa69d734adbf8a562d58d9fdc3429f2717764e7.tar.gz linux-stable-efa69d734adbf8a562d58d9fdc3429f2717764e7.tar.bz2 linux-stable-efa69d734adbf8a562d58d9fdc3429f2717764e7.zip | |
drm/i915/gvt: add mmio init for virtual display
GVT implements a purely virtual monitor for virtual GPU independent of
the host. Some DDI related MMIO are not initialized in current code
which cause the display initialization failure in guest. This patch
fills the gap.
Signed-off-by: Pei Zhang <pei.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/display.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c index 4cf2b29fbaa1..e0261fcc5b50 100644 --- a/drivers/gpu/drm/i915/gvt/display.c +++ b/drivers/gpu/drm/i915/gvt/display.c @@ -189,17 +189,44 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu) } if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { - vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT; vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; + vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= + ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | + TRANS_DDI_PORT_MASK); + vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= + (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | + (PORT_B << TRANS_DDI_PORT_SHIFT) | + TRANS_DDI_FUNC_ENABLE); + vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) |= DDI_BUF_CTL_ENABLE; + vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) &= ~DDI_BUF_IS_IDLE; + vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT; } if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTC_HOTPLUG_CPT; + vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= + ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | + TRANS_DDI_PORT_MASK); + vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= + (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | + (PORT_C << TRANS_DDI_PORT_SHIFT) | + TRANS_DDI_FUNC_ENABLE); + vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) |= DDI_BUF_CTL_ENABLE; + vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) &= ~DDI_BUF_IS_IDLE; vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; } if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; + vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= + ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | + TRANS_DDI_PORT_MASK); + vgpu_vreg(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= + (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | + (PORT_D << TRANS_DDI_PORT_SHIFT) | + TRANS_DDI_FUNC_ENABLE); + vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) |= DDI_BUF_CTL_ENABLE; + vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) &= ~DDI_BUF_IS_IDLE; vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED; } |