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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2005-09-28 00:17:40 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2005-09-28 00:17:40 +1000 |
| commit | 99a2379cdddcc4e8579e70deb80479450ed65d49 (patch) | |
| tree | d5c40a1e7ffabb87c3b1f1ae510eac80f4b52d05 /arch/powerpc/platforms/iseries/hvcall.S | |
| parent | 2952bc7c896ec76a20e18321e2be40a694a73a78 (diff) | |
| download | linux-99a2379cdddcc4e8579e70deb80479450ed65d49.tar.gz linux-99a2379cdddcc4e8579e70deb80479450ed65d49.tar.bz2 linux-99a2379cdddcc4e8579e70deb80479450ed65d49.zip | |
powerpc: move hvCall.s to powerpc/platforms/iseries
Rename it to hvcall.S and (so I can do that) rename hvcall.c
to hvlog.c - a more appropriate name.
Do some white space cleanups.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'arch/powerpc/platforms/iseries/hvcall.S')
| -rw-r--r-- | arch/powerpc/platforms/iseries/hvcall.S | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/iseries/hvcall.S b/arch/powerpc/platforms/iseries/hvcall.S new file mode 100644 index 000000000000..9901c0ec1415 --- /dev/null +++ b/arch/powerpc/platforms/iseries/hvcall.S @@ -0,0 +1,93 @@ +/* + * This file contains the code to perform calls to the + * iSeries LPAR hypervisor + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <asm/ppc_asm.h> +#include <asm/processor.h> + + .text + +/* + * Hypervisor call + * + * Invoke the iSeries hypervisor via the System Call instruction + * Parameters are passed to this routine in registers r3 - r10 + * + * r3 contains the HV function to be called + * r4-r10 contain the operands to the hypervisor function + * + */ + +_GLOBAL(HvCall) +_GLOBAL(HvCall0) +_GLOBAL(HvCall1) +_GLOBAL(HvCall2) +_GLOBAL(HvCall3) +_GLOBAL(HvCall4) +_GLOBAL(HvCall5) +_GLOBAL(HvCall6) +_GLOBAL(HvCall7) + + + mfcr r0 + std r0,-8(r1) + stdu r1,-(STACK_FRAME_OVERHEAD+16)(r1) + + /* r0 = 0xffffffffffffffff indicates a hypervisor call */ + + li r0,-1 + + /* Invoke the hypervisor */ + + sc + + ld r1,0(r1) + ld r0,-8(r1) + mtcrf 0xff,r0 + + /* return to caller, return value in r3 */ + + blr + +_GLOBAL(HvCall0Ret16) +_GLOBAL(HvCall1Ret16) +_GLOBAL(HvCall2Ret16) +_GLOBAL(HvCall3Ret16) +_GLOBAL(HvCall4Ret16) +_GLOBAL(HvCall5Ret16) +_GLOBAL(HvCall6Ret16) +_GLOBAL(HvCall7Ret16) + + mfcr r0 + std r0,-8(r1) + std r31,-16(r1) + stdu r1,-(STACK_FRAME_OVERHEAD+32)(r1) + + mr r31,r4 + li r0,-1 + mr r4,r5 + mr r5,r6 + mr r6,r7 + mr r7,r8 + mr r8,r9 + mr r9,r10 + + sc + + std r3,0(r31) + std r4,8(r31) + + mr r3,r5 + + ld r1,0(r1) + ld r0,-8(r1) + mtcrf 0xff,r0 + ld r31,-16(r1) + + blr |