From: Michael Neuling <mikey@neuling.org>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 4/5] powerpc: Rework set_dabr so it can take a DABRX value as well
Date: Fri, 07 Sep 2012 13:37:52 +1000 [thread overview]
Message-ID: <15813.1346989072@neuling.org> (raw)
In-Reply-To: <CAMuHMdU=UjkU3BRV7Aouu-m=vKaSPWH93Rkh6L3RWev4oM5jYA@mail.gmail.com>
Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> On Thu, Sep 6, 2012 at 7:17 AM, Michael Neuling <mikey@neuling.org> wrote:
> > Rework set_dabr to take a DABRX value as well. We are not actually
> > changing any functionality at this stage, just preparing for that.
>
> You are changing functionality.
You are right.. I'll fix that up.. Sorry.
>
> > #define DABRX_USER (1UL << 0)
> > #define DABRX_KERNEL (1UL << 1)
> > +#define DABRX_HYP (1UL << 2)
> > +#define DABRX_BTI (1UL << 3)
> > +#define DABRX_ALL (DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER)
>
> > --- a/arch/powerpc/platforms/cell/beat.c
> > +++ b/arch/powerpc/platforms/cell/beat.c
> > @@ -136,9 +136,9 @@ ssize_t beat_nvram_get_size(void)
> > return BEAT_NVRAM_SIZE;
> > }
> >
> > -int beat_set_xdabr(unsigned long dabr)
> > +int beat_set_xdabr(unsigned long dabr, unsigned long dabrx)
> > {
> > - if (beat_set_dabr(dabr, DABRX_KERNEL | DABRX_USER))
> > + if (beat_set_dabr(dabr, dabrx))
> > return -1;
> > return 0;
> > }
>
> > --- a/arch/powerpc/platforms/ps3/setup.c
> > +++ b/arch/powerpc/platforms/ps3/setup.c
> > @@ -184,11 +184,9 @@ early_param("ps3flash", early_parse_ps3flash);
> > #define prealloc_ps3flash_bounce_buffer() do { } while (0)
> > #endif
> >
> > -static int ps3_set_dabr(unsigned long dabr)
> > +static int ps3_set_dabr(unsigned long dabr, unsigned long dabrx)
> > {
> > - enum {DABR_USER = 1, DABR_KERNEL = 2,};
> > -
> > - return lv1_set_dabr(dabr, DABR_KERNEL | DABR_USER) ? -1 : 0;
> > + return lv1_set_dabr(dabr, dabrx) ? -1 : 0;
> > }
>
> > - set_dabr(dabr.address | (dabr.enabled & 7));
> > + set_dabr(dabr.address | (dabr.enabled & 7), DABRX_ALL);
>
> Before, beat_set_dabr() and lv1_set_dabr() would have been called with dabrx = 3
> (DABRX_KERNEL | DABRX_USER). Now they're called with dabrx = 15
> (DABRX_ALL = DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER).
>
> No idea what's the impact of this...
Do you know if the ps3 hypervisor will allow us to set DABRX_BTI or
DABRX_HYP? phyp wont.
Mikey
next prev parent reply other threads:[~2012-09-07 3:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-06 5:17 [PATCH 1/5] powerpc: Pack arch_hw_breakpoint to avoid holes in struct Michael Neuling
2012-09-06 5:17 ` [PATCH 2/5] powerpc: Use consistent name info for arch_hw_breakpoint Michael Neuling
2012-09-06 5:17 ` [PATCH 3/5] powerpc: Use the XDABR hcall Michael Neuling
2012-09-06 5:17 ` [PATCH 4/5] powerpc: Rework set_dabr so it can take a DABRX value as well Michael Neuling
2012-09-06 5:35 ` Geert Uytterhoeven
2012-09-07 3:37 ` Michael Neuling [this message]
2012-09-07 5:26 ` Geert Uytterhoeven
2012-09-07 5:43 ` Michael Neuling
2012-09-10 12:27 ` Geert Uytterhoeven
2012-09-07 7:24 ` [PATCH v2 0/3] powerpc: HW filtering of breakpoint for user/kernel/hypervisor events Michael Neuling
2012-09-07 7:24 ` [PATCH 1/3] powerpc: Rework set_dabr so it can take a DABRX value as well Michael Neuling
2012-09-07 7:24 ` [PATCH 2/3] powerpc: Dynamically calculate the dabrx based on kernel/user/hypervisor Michael Neuling
2012-09-07 7:24 ` [PATCH 3/3] powerpc: cleanup old DABRX #defines Michael Neuling
2012-09-06 5:17 ` [PATCH 5/5] powerpc: Dynamically calculate the dabrx based on kernel/user/hypervisor Michael Neuling
2012-09-06 5:31 ` Michael Neuling
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=15813.1346989072@neuling.org \
--to=mikey@neuling.org \
--cc=geert@linux-m68k.org \
--cc=linuxppc-dev@lists.ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).