In message <[EMAIL PROTECTED]> you wrote : > > On Jun 24, 2008, at 5:57 AM, Michael Neuling wrote: > > > This adds the macros for the VSX load/store instruction as most > > binutils are not going to support this for a while. > > > > Also add VSX register save/restore macros and vsr[0-63] register > > definitions. > > > > Signed-off-by: Michael Neuling <[EMAIL PROTECTED]> > > --- > > > > include/asm-powerpc/ppc_asm.h | 127 ++++++++++++++++++++++++++++++++ > > ++++++++++ > > 1 file changed, 127 insertions(+) > > > > Index: linux-2.6-ozlabs/include/asm-powerpc/ppc_asm.h > > =================================================================== > > --- linux-2.6-ozlabs.orig/include/asm-powerpc/ppc_asm.h > > +++ linux-2.6-ozlabs/include/asm-powerpc/ppc_asm.h > > @@ -74,6 +74,15 @@ END_FTR_SECTION_IFCLR(CPU_FTR_PURR); > > REST_10GPRS(22, base) > > #endif > > > > +/* > > + * Define what the VSX XX1 form instructions will look like, then add > > + * the 128 bit load store instructions based on that. > > + */ > > +#define VSX_XX1(xs, ra, rb) (((xs) & 0x1f) << 21 | ((ra) << 16) | \ > > + ((rb) << 11) | (((xs) >> 5))) > > + > > +#define STXVD2X(xs, ra, rb) .long (0x7c000798 | VSX_XX1((xs), (ra), > > (rb))) > > +#define LXVD2X(xs, ra, rb) .long (0x7c000698 | VSX_XX1((xs), (ra), > > (rb))) > > > > #define SAVE_2GPRS(n, base) SAVE_GPR(n, base); SAVE_GPR(n+1, base) > > #define SAVE_4GPRS(n, base) SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base) > > @@ -110,6 +119,57 @@ END_FTR_SECTION_IFCLR(CPU_FTR_PURR); > > #define REST_16VRS(n,b,base) REST_8VRS(n,b,base); REST_8VRS(n > > +8,b,base) > > #define REST_32VRS(n,b,base) REST_16VRS(n,b,base); REST_16VRS(n > > +16,b,base) > > > > +/* Save the lower 32 VSRs in the thread VSR region */ > > +#define SAVE_VSR(n,b,base) li b,THREAD_VSR0+(16*(n)); > > STXVD2X(n,b,base) > > +#define SAVE_2VSRS(n,b,base) SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base ) > > +#define SAVE_4VSRS(n,b,base) SAVE_2VSRS(n,b,base); SAVE_2VSRS(n > > +2,b,base) > > +#define SAVE_8VSRS(n,b,base) SAVE_4VSRS(n,b,base); SAVE_4VSRS(n > > +4,b,base) > > +#define SAVE_16VSRS(n,b,base) SAVE_8VSRS(n,b,base); SAVE_8VSRS(n > > +8,b,base) > > +#define SAVE_32VSRS(n,b,base) SAVE_16VSRS(n,b,base); SAVE_16VSRS(n > > +16,b,base) > > +#define REST_VSR(n,b,base) li b,THREAD_VSR0+(16*(n)); > > LXVD2X(n,b,base) > > +#define REST_2VSRS(n,b,base) REST_VSR(n,b,base); REST_VSR(n+1,b,base ) > > +#define REST_4VSRS(n,b,base) REST_2VSRS(n,b,base); REST_2VSRS(n > > +2,b,base) > > +#define REST_8VSRS(n,b,base) REST_4VSRS(n,b,base); REST_4VSRS(n > > +4,b,base) > > +#define REST_16VSRS(n,b,base) REST_8VSRS(n,b,base); REST_8VSRS(n > > +8,b,base) > > +#define REST_32VSRS(n,b,base) REST_16VSRS(n,b,base); REST_16VSRS(n > > +16,b,base) > > +/* Save the upper 32 VSRs (32-63) in the thread VSX region (0-31) */ > > +#define SAVE_VSRU(n,b,base) li b,THREAD_VR0+(16*(n)); STXVD2X(n > > +32,b,base) > > +#define SAVE_2VSRSU(n,b,base) SAVE_VSRU(n,b,base); SAVE_VSRU(n > > +1,b,base) > > +#define SAVE_4VSRSU(n,b,base) SAVE_2VSRSU(n,b,base); SAVE_2VSRSU(n > > +2,b,base) > > +#define SAVE_8VSRSU(n,b,base) SAVE_4VSRSU(n,b,base); SAVE_4VSRSU(n > > +4,b,base) > > +#define SAVE_16VSRSU(n,b,base) SAVE_8VSRSU(n,b,base); SAVE_8VSRSU(n > > +8,b,base) > > +#define SAVE_32VSRSU(n,b,base) SAVE_16VSRSU(n,b,base); > > SAVE_16VSRSU(n+16,b,base) > > +#define REST_VSRU(n,b,base) li b,THREAD_VR0+(16*(n)); LXVD2X(n > > +32,b,base) > > +#define REST_2VSRSU(n,b,base) REST_VSRU(n,b,base); REST_VSRU(n > > +1,b,base) > > +#define REST_4VSRSU(n,b,base) REST_2VSRSU(n,b,base); REST_2VSRSU(n > > +2,b,base) > > +#define REST_8VSRSU(n,b,base) REST_4VSRSU(n,b,base); REST_4VSRSU(n > > +4,b,base) > > +#define REST_16VSRSU(n,b,base) REST_8VSRSU(n,b,base); REST_8VSRSU(n > > +8,b,base) > > +#define REST_32VSRSU(n,b,base) REST_16VSRSU(n,b,base); > > REST_16VSRSU(n+16,b,base) > > + > > +#ifdef CONFIG_VSX > > I think we should do this in fpu.S so its clearly in the code when > reading it what's going on.
Do you mean the section above or below this comment? > > > > > +#define REST_32FPVSRS(n,c,base) \ > > +BEGIN_FTR_SECTION \ > > + b 2f; \ > > +END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ > > + REST_32FPRS(n,base); \ > > + b 3f; \ > > +2: REST_32VSRS(n,c,base); \ > > +3: > > + > > +#define SAVE_32FPVSRS(n,c,base) \ > > +BEGIN_FTR_SECTION \ > > + b 2f; \ > > +END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ > > + SAVE_32FPRS(n,base); \ > > + b 3f; \ > > +2: SAVE_32VSRS(n,c,base); \ > > +3: > > + > > +#else > > +#define REST_32FPVSRS(n,b,base) REST_32FPRS(n, base) > > +#define SAVE_32FPVSRS(n,b,base) SAVE_32FPRS(n, base) > > +#endif > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev