diff options
| author | Ian Munsie <imunsie@au1.ibm.com> | 2012-11-06 06:15:17 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-11-15 05:08:06 +0100 |
| commit | d8f48ecc0e81cbc52a8eac907e02916d98dbfb5a (patch) | |
| tree | eb51a7a834fea2dd9e82c701cf686a6d7920b881 /arch/powerpc | |
| parent | powerpc: Setup relocation on exceptions for bare metal systems (diff) | |
| download | linux-d8f48ecc0e81cbc52a8eac907e02916d98dbfb5a.tar.xz linux-d8f48ecc0e81cbc52a8eac907e02916d98dbfb5a.zip | |
powerpc: Add set_mode hcall
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 <imunsie@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/firmware.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/hvcall.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/firmware.c | 1 | ||||
| -rw-r--r-- | 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 ad0b751b0d78..973cc3be011b 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 7a867065db79..a3d26d8f63cd 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 0b0eff0cce35..7b56118f531c 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 13e8cc43adf7..44ad21403452 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 */ |