linux-kernel - Re: [PATCH v1 8/9] powerpc/powernv: Add OPAL support for Nest PMU

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Message-ID: <1433292866.438.64.camel@axtens.net>
Date:	Wed, 03 Jun 2015 10:54:26 +1000
From:	Daniel Axtens <dja@...ens.net>
To:	Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	Stewart Smith <stewart@...ux.vnet.ibm.com>,
	Stephane Eranian <eranian@...gle.com>,
	Paul Mackerras <paulus@...ba.org>, Jeremy Kerr <jk@...abs.org>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Anshuman Khandual <khandual@...ux.vnet.ibm.com>
Subject: Re: [PATCH v1 8/9] powerpc/powernv: Add OPAL support for Nest PMU

> +int64_t opal_nest_ima_control(uint32_t value);

If I'm understanding things correctly, you call this function in patch
3. Quoting from that patch:
> +static void nest_init(void *dummy)
> +{
> +       opal_nest_ima_control(P8_NEST_ENGINE_START);
> +}
Does this patch need to be moved earlier in the series? 

Have you tested that the series compiles at every point? 
(I've found that this can be done quite easily with
 git rebase --interactive using x to run the compile)

> +
>  /* Internal functions */
>  extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
>  				   int depth, void *data);
> diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
> index a7ade94..ce36a68 100644
> --- a/arch/powerpc/platforms/powernv/opal-wrappers.S
> +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
> @@ -295,3 +295,4 @@ OPAL_CALL(opal_i2c_request,			OPAL_I2C_REQUEST);
>  OPAL_CALL(opal_flash_read,			OPAL_FLASH_READ);
>  OPAL_CALL(opal_flash_write,			OPAL_FLASH_WRITE);
>  OPAL_CALL(opal_flash_erase,			OPAL_FLASH_ERASE);
> +OPAL_CALL(opal_nest_ima_control,		OPAL_NEST_IMA_CONTROL);


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