Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/ppc64/kernel/pSeries_hvCall.S b/arch/ppc64/kernel/pSeries_hvCall.S
new file mode 100644
index 0000000..0715d30
--- /dev/null
+++ b/arch/ppc64/kernel/pSeries_hvCall.S
@@ -0,0 +1,123 @@
+/*
+ * arch/ppc64/kernel/pSeries_hvCall.S
+ *
+ * This file contains the generic code to perform a call to the
+ * pSeries LPAR hypervisor.
+ * NOTE: this file will go away when we move to inline this work.
+ *
+ * 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/hvcall.h>
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+
+#define STK_PARM(i) (48 + ((i)-3)*8)
+
+ .text
+
+/* long plpar_hcall(unsigned long opcode, R3
+ unsigned long arg1, R4
+ unsigned long arg2, R5
+ unsigned long arg3, R6
+ unsigned long arg4, R7
+ unsigned long *out1, R8
+ unsigned long *out2, R9
+ unsigned long *out3); R10
+ */
+_GLOBAL(plpar_hcall)
+ mfcr r0
+
+ std r8,STK_PARM(r8)(r1) /* Save out ptrs */
+ std r9,STK_PARM(r9)(r1)
+ std r10,STK_PARM(r10)(r1)
+
+ stw r0,8(r1)
+
+ HVSC /* invoke the hypervisor */
+
+ lwz r0,8(r1)
+
+ ld r8,STK_PARM(r8)(r1) /* Fetch r4-r6 ret args */
+ ld r9,STK_PARM(r9)(r1)
+ ld r10,STK_PARM(r10)(r1)
+ std r4,0(r8)
+ std r5,0(r9)
+ std r6,0(r10)
+
+ mtcrf 0xff,r0
+ blr /* return r3 = status */
+
+
+/* Simple interface with no output values (other than status) */
+_GLOBAL(plpar_hcall_norets)
+ mfcr r0
+ stw r0,8(r1)
+
+ HVSC /* invoke the hypervisor */
+
+ lwz r0,8(r1)
+ mtcrf 0xff,r0
+ blr /* return r3 = status */
+
+
+/* long plpar_hcall_8arg_2ret(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 *out1); 120(R1)
+ */
+_GLOBAL(plpar_hcall_8arg_2ret)
+ mfcr r0
+ ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */
+ stw r0,8(r1)
+
+ HVSC /* invoke the hypervisor */
+
+ lwz r0,8(r1)
+ ld r10,STK_PARM(r12)(r1) /* Fetch r4 ret arg */
+ std r4,0(r10)
+ mtcrf 0xff,r0
+ blr /* return r3 = status */
+
+
+/* long plpar_hcall_4out(unsigned long opcode, R3
+ unsigned long arg1, R4
+ unsigned long arg2, R5
+ unsigned long arg3, R6
+ unsigned long arg4, R7
+ unsigned long *out1, R8
+ unsigned long *out2, R9
+ unsigned long *out3, R10
+ unsigned long *out4); 112(R1)
+ */
+_GLOBAL(plpar_hcall_4out)
+ mfcr r0
+ stw r0,8(r1)
+
+ std r8,STK_PARM(r8)(r1) /* Save out ptrs */
+ std r9,STK_PARM(r9)(r1)
+ std r10,STK_PARM(r10)(r1)
+
+ HVSC /* invoke the hypervisor */
+
+ lwz r0,8(r1)
+
+ ld r8,STK_PARM(r8)(r1) /* Fetch r4-r7 ret args */
+ ld r9,STK_PARM(r9)(r1)
+ ld r10,STK_PARM(r10)(r1)
+ ld r11,STK_PARM(r11)(r1)
+ std r4,0(r8)
+ std r5,0(r9)
+ std r6,0(r10)
+ std r7,0(r11)
+
+ mtcrf 0xff,r0
+ blr /* return r3 = status */