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[PATCH] powerpc: Extends HCALL interface for InfiniBand usage

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This extends the HCALL interface for InfiniBand usage. I've
made the patch against the linux-2.6 git tree and Segher's patch:
[PATCH] Change H_StudlyCaps to H_SHOUTING_CAPS

We moved this into the common powerpc code based on comments we
got after posting the first eHCA InfiniBand device driver patch.

Signed-off-by: Heiko j Schick <schickhj@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Heiko J Schick
2006-03-30 22:47:14 +02:00
committed by Paul Mackerras
parent 706c8c93ba
commit b13a96cfb0
3 changed files with 202 additions and 1 deletions
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100
arch/powerpc/platforms/pseries/hvCall.S
View File

@@ -127,3 +127,103 @@ _GLOBAL(plpar_hcall_4out)
mtcrf 0xff,r0
blr /* return r3 = status */
/* plpar_hcall_7arg_7ret(unsigned long opcode, R3
unsigned long arg1, R4
unsigned long arg2, R5
unsigned long arg3, R6
unsigned long arg4, R7
unsigned long arg5, R8
unsigned long arg6, R9
unsigned long arg7, R10
unsigned long *out1, 112(R1)
unsigned long *out2, 110(R1)
unsigned long *out3, 108(R1)
unsigned long *out4, 106(R1)
unsigned long *out5, 104(R1)
unsigned long *out6, 102(R1)
unsigned long *out7); 100(R1)
*/
_GLOBAL(plpar_hcall_7arg_7ret)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HVSC /* invoke the hypervisor */
lwz r0,8(r1)
ld r11,STK_PARM(r11)(r1) /* Fetch r4 ret arg */
std r4,0(r11)
ld r11,STK_PARM(r12)(r1) /* Fetch r5 ret arg */
std r5,0(r11)
ld r11,STK_PARM(r13)(r1) /* Fetch r6 ret arg */
std r6,0(r11)
ld r11,STK_PARM(r14)(r1) /* Fetch r7 ret arg */
std r7,0(r11)
ld r11,STK_PARM(r15)(r1) /* Fetch r8 ret arg */
std r8,0(r11)
ld r11,STK_PARM(r16)(r1) /* Fetch r9 ret arg */
std r9,0(r11)
ld r11,STK_PARM(r17)(r1) /* Fetch r10 ret arg */
std r10,0(r11)
mtcrf 0xff,r0
blr /* return r3 = status */
/* plpar_hcall_9arg_9ret(unsigned long opcode, R3
unsigned long arg1, R4
unsigned long arg2, R5
unsigned long arg3, R6
unsigned long arg4, R7
unsigned long arg5, R8
unsigned long arg6, R9
unsigned long arg7, R10
unsigned long arg8, 112(R1)
unsigned long arg9, 110(R1)
unsigned long *out1, 108(R1)
unsigned long *out2, 106(R1)
unsigned long *out3, 104(R1)
unsigned long *out4, 102(R1)
unsigned long *out5, 100(R1)
unsigned long *out6, 98(R1)
unsigned long *out7); 96(R1)
unsigned long *out8, 94(R1)
unsigned long *out9, 92(R1)
*/
_GLOBAL(plpar_hcall_9arg_9ret)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */
ld r12,STK_PARM(r12)(r1) /* put arg9 in R12 */
HVSC /* invoke the hypervisor */
ld r0,STK_PARM(r13)(r1) /* Fetch r4 ret arg */
stdx r4,r0,r0
ld r0,STK_PARM(r14)(r1) /* Fetch r5 ret arg */
stdx r5,r0,r0
ld r0,STK_PARM(r15)(r1) /* Fetch r6 ret arg */
stdx r6,r0,r0
ld r0,STK_PARM(r16)(r1) /* Fetch r7 ret arg */
stdx r7,r0,r0
ld r0,STK_PARM(r17)(r1) /* Fetch r8 ret arg */
stdx r8,r0,r0
ld r0,STK_PARM(r18)(r1) /* Fetch r9 ret arg */
stdx r9,r0,r0
ld r0,STK_PARM(r19)(r1) /* Fetch r10 ret arg */
stdx r10,r0,r0
ld r0,STK_PARM(r20)(r1) /* Fetch r11 ret arg */
stdx r11,r0,r0
ld r0,STK_PARM(r21)(r1) /* Fetch r12 ret arg */
stdx r12,r0,r0
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */

3
arch/powerpc/platforms/pseries/lpar.c
View File

@@ -54,7 +54,8 @@ EXPORT_SYMBOL(plpar_hcall);
EXPORT_SYMBOL(plpar_hcall_4out);
EXPORT_SYMBOL(plpar_hcall_norets);
EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
EXPORT_SYMBOL(plpar_hcall_7arg_7ret);
EXPORT_SYMBOL(plpar_hcall_9arg_9ret);
extern void pSeries_find_serial_port(void);