[PATCH] powerpc: Extends HCALL interface for InfiniBand usage

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>

diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index db7c19f..c9ff547 100644 (file)
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -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 */

diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index c72c091..634b7d0 100644 (file)
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -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);
 
 

diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index 029afae..6cc7e1f 100644 (file)
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -7,8 +7,12 @@
 #define H_SUCCESS      0
 #define H_BUSY         1       /* Hardware busy -- retry later */
 #define H_CLOSED       2       /* Resource closed */
+#define H_NOT_AVAILABLE 3
 #define H_CONSTRAINED  4       /* Resource request constrained to max allowed */
+#define H_PARTIAL       5
 #define H_IN_PROGRESS  14      /* Kind of like busy */
+#define H_PAGE_REGISTERED 15
+#define H_PARTIAL_STORE   16
 #define H_PENDING      17      /* returned from H_POLL_PENDING */
 #define H_CONTINUE     18      /* Returned from H_Join on success */
 #define H_LONG_BUSY_START_RANGE                9900  /* Start of long busy range */
@@ -41,6 +45,36 @@
 #define H_DEST_PARM    -14
 #define H_REMOTE_PARM  -15
 #define H_RESOURCE     -16
+#define H_ADAPTER_PARM  -17
+#define H_RH_PARM       -18
+#define H_RCQ_PARM      -19
+#define H_SCQ_PARM      -20
+#define H_EQ_PARM       -21
+#define H_RT_PARM       -22
+#define H_ST_PARM       -23
+#define H_SIGT_PARM     -24
+#define H_TOKEN_PARM    -25
+#define H_MLENGTH_PARM  -27
+#define H_MEM_PARM      -28
+#define H_MEM_ACCESS_PARM -29
+#define H_ATTR_PARM     -30
+#define H_PORT_PARM     -31
+#define H_MCG_PARM      -32
+#define H_VL_PARM       -33
+#define H_TSIZE_PARM    -34
+#define H_TRACE_PARM    -35
+
+#define H_MASK_PARM     -37
+#define H_MCG_FULL      -38
+#define H_ALIAS_EXIST   -39
+#define H_P_COUNTER     -40
+#define H_TABLE_FULL    -41
+#define H_ALT_TABLE     -42
+#define H_MR_CONDITION  -43
+#define H_NOT_ENOUGH_RESOURCES -44
+#define H_R_STATE       -45
+#define H_RESCINDEND    -46
+
 
 /* Long Busy is a condition that can be returned by the firmware
  * when a call cannot be completed now, but the identical call
@@ -73,6 +107,9 @@
 #define H_DABRX_KERNEL         (1UL<<(63-62))
 #define H_DABRX_USER           (1UL<<(63-63))
 
+/* Each control block has to be on a 4K bondary */
+#define H_CB_ALIGNMENT          4096
+
 /* pSeries hypervisor opcodes */
 #define H_REMOVE               0x04
 #define H_ENTER                        0x08
@@ -124,6 +161,33 @@
 #define H_VTERM_PARTNER_INFO   0x150
 #define H_REGISTER_VTERM       0x154
 #define H_FREE_VTERM           0x158
+#define H_RESET_EVENTS          0x15C
+#define H_ALLOC_RESOURCE        0x160
+#define H_FREE_RESOURCE         0x164
+#define H_MODIFY_QP             0x168
+#define H_QUERY_QP              0x16C
+#define H_REREGISTER_PMR        0x170
+#define H_REGISTER_SMR          0x174
+#define H_QUERY_MR              0x178
+#define H_QUERY_MW              0x17C
+#define H_QUERY_HCA             0x180
+#define H_QUERY_PORT            0x184
+#define H_MODIFY_PORT           0x188
+#define H_DEFINE_AQP1           0x18C
+#define H_GET_TRACE_BUFFER      0x190
+#define H_DEFINE_AQP0           0x194
+#define H_RESIZE_MR             0x198
+#define H_ATTACH_MCQP           0x19C
+#define H_DETACH_MCQP           0x1A0
+#define H_CREATE_RPT            0x1A4
+#define H_REMOVE_RPT            0x1A8
+#define H_REGISTER_RPAGES       0x1AC
+#define H_DISABLE_AND_GETC      0x1B0
+#define H_ERROR_DATA            0x1B4
+#define H_GET_HCA_INFO          0x1B8
+#define H_GET_PERF_COUNT        0x1BC
+#define H_MANAGE_TRACE          0x1C0
+#define H_QUERY_INT_STATE       0x1E4
 #define H_POLL_PENDING         0x1D8
 #define H_JOIN                 0x298
 #define H_ENABLE_CRQ           0x2B0
@@ -183,6 +247,42 @@ long plpar_hcall_4out(unsigned long opcode,
                      unsigned long *out3,
                      unsigned long *out4);
 
+long plpar_hcall_7arg_7ret(unsigned long opcode,
+                          unsigned long arg1,
+                          unsigned long arg2,
+                          unsigned long arg3,
+                          unsigned long arg4,
+                          unsigned long arg5,
+                          unsigned long arg6,
+                          unsigned long arg7,
+                          unsigned long *out1,
+                          unsigned long *out2,
+                          unsigned long *out3,
+                          unsigned long *out4,
+                          unsigned long *out5,
+                          unsigned long *out6,
+                          unsigned long *out7);
+
+long plpar_hcall_9arg_9ret(unsigned long opcode,
+                          unsigned long arg1,
+                          unsigned long arg2,
+                          unsigned long arg3,
+                          unsigned long arg4,
+                          unsigned long arg5,
+                          unsigned long arg6,
+                          unsigned long arg7,
+                          unsigned long arg8,
+                          unsigned long arg9,
+                          unsigned long *out1,
+                          unsigned long *out2,
+                          unsigned long *out3,
+                          unsigned long *out4,
+                          unsigned long *out5,
+                          unsigned long *out6,
+                          unsigned long *out7,
+                          unsigned long *out8,
+                          unsigned long *out9);
+
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_HVCALL_H */