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Re: [Qemu-devel] [Qemu-ppc] [RFC for-4.1 16/25] target/ppc: Style fixes


From: David Gibson
Subject: Re: [Qemu-devel] [Qemu-ppc] [RFC for-4.1 16/25] target/ppc: Style fixes for mmu-hash32.[ch]
Date: Tue, 26 Mar 2019 11:03:21 +1100
User-agent: Mutt/1.11.3 (2019-02-01)

On Mon, Mar 25, 2019 at 09:45:11AM +0100, Greg Kurz wrote:
> On Fri, 22 Mar 2019 11:15:35 +1100
> David Gibson <address@hidden> wrote:
> 
> > Signed-off-by: David Gibson <address@hidden>
> > ---
> >  target/ppc/mmu-hash32.c | 19 ++++++++++++-------
> >  1 file changed, 12 insertions(+), 7 deletions(-)
> > 
> > diff --git a/target/ppc/mmu-hash32.c b/target/ppc/mmu-hash32.c
> > index e8562a7c87..f83944b78c 100644
> > --- a/target/ppc/mmu-hash32.c
> > +++ b/target/ppc/mmu-hash32.c
> > @@ -27,7 +27,7 @@
> >  #include "mmu-hash32.h"
> >  #include "exec/log.h"
> >  
> > -//#define DEBUG_BAT
> > +/* #define DEBUG_BAT */
> >  
> >  #ifdef DEBUG_BATS
> >  #  define LOG_BATS(...) qemu_log_mask(CPU_LOG_MMU, __VA_ARGS__)
> > @@ -228,8 +228,10 @@ static int ppc_hash32_direct_store(PowerPCCPU *cpu, 
> > target_ulong sr,
> >      qemu_log_mask(CPU_LOG_MMU, "direct store...\n");
> >  
> >      if ((sr & 0x1FF00000) >> 20 == 0x07f) {
> > -        /* Memory-forced I/O controller interface access */
> > -        /* If T=1 and BUID=x'07F', the 601 performs a memory access
> > +        /*
> > +         * Memory-forced I/O controller interface access
> > +         *
> > +         * If T=1 and BUID=x'07F', the 601 performs a memory access
> >           * to SR[28-31] LA[4-31], bypassing all protection mechanisms.
> >           */
> >          *raddr = ((sr & 0xF) << 28) | (eaddr & 0x0FFFFFFF);
> > @@ -266,8 +268,9 @@ static int ppc_hash32_direct_store(PowerPCCPU *cpu, 
> > target_ulong sr,
> >          return 1;
> >      case ACCESS_CACHE:
> >          /* dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi */
> > -        /* Should make the instruction do no-op.
> > -         * As it already do no-op, it's quite easy :-)
> > +        /*
> > +         * Should make the instruction do no-op.  As it already do
> > +         * no-op, it's quite easy :-)
> >           */
> 
> Maybe make it:
> 
>         /* 
>          * dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi
>          *
>          * Should make the instruction do no-op.  As it already do
>          * no-op, it's quite easy :-)
>          */

Done.

> >          *raddr = eaddr;
> >          return 0;
> > @@ -519,8 +522,10 @@ int ppc_hash32_handle_mmu_fault(PowerPCCPU *cpu, vaddr 
> > eaddr, int rwx,
> >      if (rwx == 1) {
> >          new_pte1 |= HPTE32_R_C; /* set changed (dirty) bit */
> >      } else {
> > -        /* Treat the page as read-only for now, so that a later write
> > -         * will pass through this function again to set the C bit */
> > +        /*
> > +         * Treat the page as read-only for now, so that a later write
> > +         * will pass through this function again to set the C bit
> > +         */
> >          prot &= ~PAGE_WRITE;
> >      }
> >  
> 

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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