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Subject: Re: [PATCH] cxl: Add support for ASB_Notify on POWER9
From: Benjamin Herrenschmidt <benh@au1.ibm.com>
Reply-To: benh@au1.ibm.com
To: christophe lombard <clombard@linux.vnet.ibm.com>,
 linuxppc-dev@lists.ozlabs.org, fbarrat@linux.vnet.ibm.com,
 vaibhav@linux.vnet.ibm.com, andrew.donnellan@au1.ibm.com
Date: Sat, 25 Nov 2017 00:02:27 +1100
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References: <1511435132-24020-1-git-send-email-clombard@linux.vnet.ibm.com>
 <1511469668.2466.48.camel@au1.ibm.com>
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On Fri, 2017-11-24 at 11:14 +0100, christophe lombard wrote:
> To my knowledge, there is no property (or similar), somewhere, that
> indicating that the TIDR is supported or not.
> For the time being, if I am not wrong, the only check we have, is
> this condition in the function set_thread_tidr(struct task_struct *t):
> 
>         if (!cpu_has_feature(CPU_FTR_ARCH_300))
>                 return -EINVAL;
> 
> 
> Christophe

Then we need to fix that

Ben.