Quoting Tvrtko Ursulin (2019-01-08 13:22:46)
> From: Tvrtko Ursulin <[email protected]>
>
> Configuring RPCS in context image just before pin is sufficient and will
> come extra handy in one of the following patches.
>
> v2:
> * Split image setup a bit differently. (Chris Wilson)
>
> v3:
> * Update context image after reset as well - otherwise the application
> of pinned default state clears the RPCS.
>
> v4:
> * Use local variable throughout the function. (Chris Wilson)
>
> Signed-off-by: Tvrtko Ursulin <[email protected]>
> Suggested-by: Chris Wilson <[email protected]>
> Cc: Chris Wilson <[email protected]>
> Reviewed-by: Chris Wilson <[email protected]>
<SNIP>
> +static u32 make_rpcs(struct drm_i915_private *dev_priv);
This will be gotten rid of in upcoming patches, so ok.
> if (rcs) {
> regs[CTX_LRI_HEADER_2] = MI_LOAD_REGISTER_IMM(1);
> - CTX_REG(regs, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE,
> - make_rpcs(dev_priv));
> + CTX_REG(regs, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE, 0);
While here, we could poison the value with something nasty as code flow
assumes it to be overwritten in next call.
Reviewed-by: Joonas Lahtinen <[email protected]>
Regards, Joonas
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