On Mon, Mar 25, 2019 at 09:45:11AM +0100, Greg Kurz wrote: > On Fri, 22 Mar 2019 11:15:35 +1100 > David Gibson <[email protected]> wrote: > > > Signed-off-by: David Gibson <[email protected]> > > --- > > 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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