diff options
| author | Colin Xu <colin.xu@intel.com> | 2018-09-14 09:12:23 +0200 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2018-09-18 04:37:44 +0200 |
| commit | d817de3bc186c305b8e72a52547df2971c06499d (patch) | |
| tree | 18c66f558cfacec5b12e73e1ac7e5001610c0487 /drivers/gpu | |
| parent | drm/i915/gvt: Init PHY related registers for BXT (diff) | |
| download | linux-d817de3bc186c305b8e72a52547df2971c06499d.tar.xz linux-d817de3bc186c305b8e72a52547df2971c06499d.zip | |
drm/i915/gvt: Add GEN9_CLKGATE_DIS_4 to default BXT mmio handler
Host prints lots of untracked MMIO at 0x4653c when creating linux guest.
"gvt: vgpu 2: untracked MMIO 0004653c len 4"
GEN9_CLKGATE_DIS_4 (0x4653c) is accessed by i915 for gmbus clockgating.
However vgpu doesn't support any clockgating powergating operations
on related mmio access trap so need add it to default handler.
GEN9_CLKGATE_DIS_4 is accessed in bxt_gmbus_clock_gating() which only
applies to GEN9_LP so doens't show the warning on other platforms.
The solution is to add it to default handler init_bxt_mmio_info().
Reviewed-by: He, Min <min.he@intel.com>
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/handlers.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 72afa518edd9..94c1089ecf59 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -3210,6 +3210,7 @@ static int init_bxt_mmio_info(struct intel_gvt *gvt) MMIO_D(BXT_DSI_PLL_ENABLE, D_BXT); MMIO_D(GEN9_CLKGATE_DIS_0, D_BXT); + MMIO_D(GEN9_CLKGATE_DIS_4, D_BXT); MMIO_D(HSW_TVIDEO_DIP_GCP(TRANSCODER_A), D_BXT); MMIO_D(HSW_TVIDEO_DIP_GCP(TRANSCODER_B), D_BXT); |