[PATCH] drm/i915/gvt: Allow F_CMD_ACCESS on mmio 0x21f0

[Zhao, Yan Y]

Looks good to me.
Reviewed-by: Yan Zhao <yan.y.zhao at intel.com>

> -----Original Message-----
> From: intel-gvt-dev [mailto:intel-gvt-dev-bounces at lists.freedesktop.org] On
> Behalf Of Colin Xu
> Sent: Friday, January 11, 2019 2:26 PM
> To: intel-gvt-dev at lists.freedesktop.org
> Cc: Xu, Colin <colin.xu at intel.com>
> Subject: [PATCH] drm/i915/gvt: Allow F_CMD_ACCESS on mmio 0x21f0
> 
> The newly updated guest driver could program 0x21f0 via lri and srm, without
> F_CMD_ACCESS flag cmd parser will stop parser reset cmd.
> 0x21f0 applies to BDW, SKL, KBL, BXT and CFL.
> 
> Signed-off-by: Colin Xu <colin.xu at intel.com>
> ---
>  drivers/gpu/drm/i915/gvt/handlers.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/i915/gvt/handlers.c
> b/drivers/gpu/drm/i915/gvt/handlers.c
> index 68a62ba5bf54..a4b9659017fd 100644
> --- a/drivers/gpu/drm/i915/gvt/handlers.c
> +++ b/drivers/gpu/drm/i915/gvt/handlers.c
> @@ -2799,6 +2799,7 @@ static int init_broadwell_mmio_info(struct intel_gvt
> *gvt)
>  	MMIO_DFH(_MMIO(0xe2a0), D_BDW_PLUS, F_CMD_ACCESS, NULL,
> NULL);
>  	MMIO_DFH(_MMIO(0xe2b0), D_BDW_PLUS, F_CMD_ACCESS, NULL,
> NULL);
>  	MMIO_DFH(_MMIO(0xe2c0), D_BDW_PLUS, F_CMD_ACCESS, NULL,
> NULL);
> +	MMIO_DFH(_MMIO(0x21f0), D_BDW_PLUS, F_CMD_ACCESS, NULL,
> NULL);
>  	return 0;
>  }
> 
> --
> 2.20.1
> 
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