On Mon, Apr 25, 2016 at 03:38:06PM +0300, Imre Deak wrote:
> No need for hard-coding the register value, the corresponding fields are
> defined properly in BSpec.
> 
> No functional change.
> 
> Signed-off-by: Imre Deak <[email protected]>

Reviewed-by: Ville Syrjälä <[email protected]>

> ---
>  drivers/gpu/drm/i915/i915_reg.h | 3 ++-
>  drivers/gpu/drm/i915/intel_pm.c | 3 ++-
>  2 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index c21b71c..0cb2e17 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -6073,7 +6073,8 @@ enum skl_disp_power_wells {
>  #define  VLV_B0_WA_L3SQCREG1_VALUE           0x00D30000
>  
>  #define GEN8_L3SQCREG1                               _MMIO(0xB100)
> -#define  BDW_WA_L3SQCREG1_DEFAULT            0x784000
> +#define  L3_GENERAL_PRIO_CREDITS(x)          (((x) >> 1) << 19)
> +#define  L3_HIGH_PRIO_CREDITS(x)             (((x) >> 1) << 14)
>  
>  #define GEN7_L3CNTLREG1                              _MMIO(0xB01C)
>  #define  GEN7_WA_FOR_GEN7_L3_CONTROL                 0x3C47FF8C
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index a6fd4dd..a9b7626 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -6710,7 +6710,8 @@ static void broadwell_init_clock_gating(struct 
> drm_device *dev)
>        */
>       misccpctl = I915_READ(GEN7_MISCCPCTL);
>       I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE);
> -     I915_WRITE(GEN8_L3SQCREG1, BDW_WA_L3SQCREG1_DEFAULT);
> +     I915_WRITE(GEN8_L3SQCREG1, L3_GENERAL_PRIO_CREDITS(30) |
> +                                L3_HIGH_PRIO_CREDITS(2));
>       /*
>        * Wait at least 100 clocks before re-enabling clock gating. See
>        * the definition of L3SQCREG1 in BSpec.
> -- 
> 2.5.0
> 
> _______________________________________________
> Intel-gfx mailing list
> [email protected]
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel OTC
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