From: Ian Munsie <imun...@au1.ibm.com>
This new hcall in POWER8 is used to set various resource mode registers.
eg. it can set address translation mode on interrupt (note: partition wide
scope)
Signed-off-by: Ian Munsie <imun...@au1.ibm.com>
Signed-off-by: Michael Neuling <mi...@neuling.org>
---
arch/powerpc/include/asm/firmware.h | 4 +++-
arch/powerpc/include/asm/hvcall.h | 3 ++-
arch/powerpc/platforms/pseries/firmware.c | 1 +
arch/powerpc/platforms/pseries/plpar_wrappers.h | 6 ++++++
4 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/firmware.h
b/arch/powerpc/include/asm/firmware.h
index ad0b751..973cc3b 100644
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -49,6 +49,7 @@
#define FW_FEATURE_XCMO ASM_CONST(0x0000000008000000)
#define FW_FEATURE_OPAL ASM_CONST(0x0000000010000000)
#define FW_FEATURE_OPALv2 ASM_CONST(0x0000000020000000)
+#define FW_FEATURE_SET_MODE ASM_CONST(0x0000000040000000)
#ifndef __ASSEMBLY__
@@ -62,7 +63,8 @@ enum {
FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
- FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO,
+ FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
+ FW_FEATURE_SET_MODE,
FW_FEATURE_PSERIES_ALWAYS = 0,
FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_OPALv2,
FW_FEATURE_POWERNV_ALWAYS = 0,
diff --git a/arch/powerpc/include/asm/hvcall.h
b/arch/powerpc/include/asm/hvcall.h
index 7a86706..a3d26d8 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -267,7 +267,8 @@
#define H_RANDOM 0x300
#define H_COP 0x304
#define H_GET_MPP_X 0x314
-#define MAX_HCALL_OPCODE H_GET_MPP_X
+#define H_SET_MODE 0x31C
+#define MAX_HCALL_OPCODE H_SET_MODE
#ifndef __ASSEMBLY__
diff --git a/arch/powerpc/platforms/pseries/firmware.c
b/arch/powerpc/platforms/pseries/firmware.c
index 0b0eff0..7b56118 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -56,6 +56,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = {
{FW_FEATURE_MULTITCE, "hcall-multi-tce"},
{FW_FEATURE_SPLPAR, "hcall-splpar"},
{FW_FEATURE_VPHN, "hcall-vphn"},
+ {FW_FEATURE_SET_MODE, "hcall-set-mode"},
};
/* Build up the firmware features bitmask using the contents of
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h
b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 13e8cc4..44ad214 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -273,4 +273,10 @@ static inline long plpar_put_term_char(unsigned long
termno, unsigned long len,
lbuf[1]);
}
+/* Set various resource mode parameters */
+static inline long plpar_set_mode(unsigned long mflags, unsigned long resource,
+ unsigned long value1, unsigned long value2)
+{
+ return plpar_hcall_norets(H_SET_MODE, mflags, resource, value1, value2);
+}
#endif /* _PSERIES_PLPAR_WRAPPERS_H */
--
1.7.9.5
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