[POWERPC] Celleb: interfaces to the hypervisor

This patch creates Celleb platform dependent files which add
interfaces to call hypervisor.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 287 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/celleb/hvCall.S b/arch/powerpc/platforms/celleb/hvCall.S
new file mode 100644
index 000000000000..74c817448948
--- /dev/null
+++ b/arch/powerpc/platforms/celleb/hvCall.S
@@ -0,0 +1,287 @@
+/*
+ * Beat hypervisor call I/F
+ *
+ * (C) Copyright 2007 TOSHIBA CORPORATION
+ *
+ * This code is based on arch/powerpc/platforms/pseries/hvCall.S.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <asm/ppc_asm.h>
+
+#define STK_PARM(i)     (48 + ((i)-3)*8)
+
+/* Not implemented on Beat, now */
+#define HCALL_INST_PRECALL
+#define HCALL_INST_POSTCALL
+
+        .text
+
+#define HVSC    .long   0x44000022
+
+/* Note: takes only 7 input parameters at maximum */
+_GLOBAL(beat_hcall_norets)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        mr      r11,r3
+        mr      r3,r4
+        mr      r4,r5
+        mr      r5,r6
+        mr      r6,r7
+        mr      r7,r8
+        mr      r8,r9
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */
+
+/* Note: takes 8 input parameters at maximum */
+_GLOBAL(beat_hcall_norets8)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        mr      r11,r3
+        mr      r3,r4
+        mr      r4,r5
+        mr      r5,r6
+        mr      r6,r7
+        mr      r7,r8
+        mr      r8,r9
+        ld      r10,STK_PARM(r10)(r1)
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */
+
+/* Note: takes only 6 input parameters, 1 output parameters at maximum */
+_GLOBAL(beat_hcall1)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        std     r4,STK_PARM(r4)(r1)     /* save ret buffer */
+
+        mr      r11,r3
+        mr      r3,r5
+        mr      r4,r6
+        mr      r5,r7
+        mr      r6,r8
+        mr      r7,r9
+        mr      r8,r10
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        ld      r12,STK_PARM(r4)(r1)
+        std     r4,  0(r12)
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */
+
+/* Note: takes only 6 input parameters, 2 output parameters at maximum */
+_GLOBAL(beat_hcall2)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        std     r4,STK_PARM(r4)(r1)     /* save ret buffer */
+
+        mr      r11,r3
+        mr      r3,r5
+        mr      r4,r6
+        mr      r5,r7
+        mr      r6,r8
+        mr      r7,r9
+        mr      r8,r10
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        ld      r12,STK_PARM(r4)(r1)
+        std     r4,  0(r12)
+        std     r5,  8(r12)
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */
+
+/* Note: takes only 6 input parameters, 3 output parameters at maximum */
+_GLOBAL(beat_hcall3)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        std     r4,STK_PARM(r4)(r1)     /* save ret buffer */
+
+        mr      r11,r3
+        mr      r3,r5
+        mr      r4,r6
+        mr      r5,r7
+        mr      r6,r8
+        mr      r7,r9
+        mr      r8,r10
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        ld      r12,STK_PARM(r4)(r1)
+        std     r4,  0(r12)
+        std     r5,  8(r12)
+        std     r6, 16(r12)
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */
+
+/* Note: takes only 6 input parameters, 4 output parameters at maximum */
+_GLOBAL(beat_hcall4)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        std     r4,STK_PARM(r4)(r1)     /* save ret buffer */
+
+        mr      r11,r3
+        mr      r3,r5
+        mr      r4,r6
+        mr      r5,r7
+        mr      r6,r8
+        mr      r7,r9
+        mr      r8,r10
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        ld      r12,STK_PARM(r4)(r1)
+        std     r4,  0(r12)
+        std     r5,  8(r12)
+        std     r6, 16(r12)
+        std     r7, 24(r12)
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */
+
+/* Note: takes only 6 input parameters, 5 output parameters at maximum */
+_GLOBAL(beat_hcall5)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        std     r4,STK_PARM(r4)(r1)     /* save ret buffer */
+
+        mr      r11,r3
+        mr      r3,r5
+        mr      r4,r6
+        mr      r5,r7
+        mr      r6,r8
+        mr      r7,r9
+        mr      r8,r10
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        ld      r12,STK_PARM(r4)(r1)
+        std     r4,  0(r12)
+        std     r5,  8(r12)
+        std     r6, 16(r12)
+        std     r7, 24(r12)
+        std     r8, 32(r12)
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */
+
+/* Note: takes only 6 input parameters, 6 output parameters at maximum */
+_GLOBAL(beat_hcall6)
+        HMT_MEDIUM
+
+        mfcr    r0
+        stw     r0,8(r1)
+
+        HCALL_INST_PRECALL
+
+        std     r4,STK_PARM(r4)(r1)     /* save ret buffer */
+
+        mr      r11,r3
+        mr      r3,r5
+        mr      r4,r6
+        mr      r5,r7
+        mr      r6,r8
+        mr      r7,r9
+        mr      r8,r10
+
+        HVSC                            /* invoke the hypervisor */
+
+        HCALL_INST_POSTCALL
+
+        ld      r12,STK_PARM(r4)(r1)
+        std     r4,  0(r12)
+        std     r5,  8(r12)
+        std     r6, 16(r12)
+        std     r7, 24(r12)
+        std     r8, 32(r12)
+        std     r9, 40(r12)
+
+        lwz     r0,8(r1)
+        mtcrf   0xff,r0
+
+        blr                             /* return r3 = status */