linux-kernel - linux-next: manual merge of the mips tree with the mips-fixes tree

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Date:   Tue, 5 Nov 2019 10:05:56 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Ralf Baechle <ralf@...ux-mips.org>, James Hogan <jhogan@...nel.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Bogendoerfer <tbogendoerfer@...e.de>,
        Paul Burton <paulburton@...nel.org>
Subject: linux-next: manual merge of the mips tree with the mips-fixes tree

Hi all,

Today's linux-next merge of the mips tree got a conflict in:

  arch/mips/sgi-ip27/ip27-init.c

between commit:

  637346748245 ("MIPS: SGI-IP27: fix exception handler replication")

from the mips-fixes tree and commit:

  4bf841ebf17a ("MIPS: SGI-IP27: get rid of compact node ids")

from the mips tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/mips/sgi-ip27/ip27-init.c
index 79a52c472782,8fd3505e2b9c..000000000000
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@@ -67,16 -62,25 +62,16 @@@ static void per_hub_init(nasid_t nasid
  	REMOTE_HUB_S(nasid, IIO_ICTP, 0x800);
  	REMOTE_HUB_S(nasid, IIO_ICTO, 0xff);
  
- 	hub_rtc_init(cnode);
+ 	hub_rtc_init(nasid);
  
 -#ifdef CONFIG_REPLICATE_EXHANDLERS
 -	/*
 -	 * If this is not a headless node initialization,
 -	 * copy over the caliased exception handlers.
 -	 */
 -	if (get_nasid() == nasid) {
 -		extern char except_vec2_generic, except_vec3_generic;
 -		extern void build_tlb_refill_handler(void);
 -
 -		memcpy((void *)(CKSEG0 + 0x100), &except_vec2_generic, 0x80);
 -		memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x80);
 -		build_tlb_refill_handler();
 -		memcpy((void *)(CKSEG0 + 0x100), (void *) CKSEG0, 0x80);
 -		memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x100);
 +	if (nasid) {
 +		/* copy exception handlers from first node to current node */
 +		memcpy((void *)NODE_OFFSET_TO_K0(nasid, 0),
 +		       (void *)CKSEG0, 0x200);
  		__flush_cache_all();
 +		/* switch to node local exception handlers */
 +		REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_8K);
  	}
 -#endif
  }
  
  void per_cpu_init(void)

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