On Fri, Jul 08, 2011 at 11:48:50AM +0100, Chris Wilson wrote:
> Konstantin Belousov found an error in the define of G4x_GMCH_SIZE_VT_2M
> relative to the GMCH specs, and confirmed that indeed one of his users
> with a Q45 reports 0xb not 0xc for a 2/2MiB GATT.
> 
> Signed-off-by: Chris Wilson <[email protected]>
> Cc: Konstantin Belousov <[email protected]>
> Cc: Daniel Vetter <[email protected]>
> ---
>  drivers/char/agp/intel-agp.h |    7 ++++---
>  1 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
> index 999803c..23d9f5d 100644
> --- a/drivers/char/agp/intel-agp.h
> +++ b/drivers/char/agp/intel-agp.h
> @@ -90,9 +90,10 @@
>  #define G4x_GMCH_SIZE_MASK   (0xf << 8)
>  #define G4x_GMCH_SIZE_1M     (0x1 << 8)
>  #define G4x_GMCH_SIZE_2M     (0x3 << 8)
> -#define G4x_GMCH_SIZE_VT_1M  (0x9 << 8)
> -#define G4x_GMCH_SIZE_VT_1_5M        (0xa << 8)
> -#define G4x_GMCH_SIZE_VT_2M  (0xc << 8)
> +#define G4x_GMCH_SIZE_VT_EN  (0x8 << 8)
> +#define G4x_GMCH_SIZE_VT_1M  (G4x_GMCH_SIZE_1M | G4x_GMCH_SIZE_VT_EN)
> +#define G4x_GMCH_SIZE_VT_1_5M        (0x2 | G4x_GMCH_SIZE_VT_EN) /* no nonVT 
> equiv */
I think this should be (0x2 << 8), and not 0x2.

> +#define G4x_GMCH_SIZE_VT_2M  (G4x_GMCH_SIZE_2M | G4x_GMCH_SIZE_VT_EN)
>  
>  #define GFX_FLSH_CNTL                0x2170 /* 915+ */
>  
> -- 
> 1.7.5.4

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