diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-04-12 15:17:25 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-07-26 09:25:15 +0300 |
| commit | 6997c32365ac5a61b298a9e165ed32497c8cbc25 (patch) | |
| tree | 8d68e1b14fbf9c957fc51a765955a6af7a681405 /arch/s390 | |
| parent | 6e2ef5e4f6cc57344762932d70d38ba4ec65fa8b (diff) | |
| download | linux-6997c32365ac5a61b298a9e165ed32497c8cbc25.tar.xz | |
s390: add support for IBM z14 machines
Add detection for machine type 0x3906 and set the ELF platform name
to z14. Add the miscellaneous-instruction-extension 2 facility to
the list of facilities for z14.
And allow to generate code that only runs on a z14 machine.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/Kconfig | 18 | ||||
| -rw-r--r-- | arch/s390/Makefile | 6 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 3 | ||||
| -rw-r--r-- | arch/s390/tools/gen_facilities.c | 3 |
4 files changed, 28 insertions, 2 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 7eeb75d758c1..48af970320cb 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -222,6 +222,10 @@ config HAVE_MARCH_Z13_FEATURES def_bool n select HAVE_MARCH_ZEC12_FEATURES +config HAVE_MARCH_Z14_FEATURES + def_bool n + select HAVE_MARCH_Z13_FEATURES + choice prompt "Processor type" default MARCH_Z196 @@ -282,6 +286,14 @@ config MARCH_Z13 2964 series). The kernel will be slightly faster but will not work on older machines. +config MARCH_Z14 + bool "IBM z14" + select HAVE_MARCH_Z14_FEATURES + help + Select this to enable optimizations for IBM z14 (3906 series). + The kernel will be slightly faster but will not work on older + machines. + endchoice config MARCH_Z900_TUNE @@ -305,6 +317,9 @@ config MARCH_ZEC12_TUNE config MARCH_Z13_TUNE def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT +config MARCH_Z14_TUNE + def_bool TUNE_Z14 || MARCH_Z14 && TUNE_DEFAULT + choice prompt "Tune code generation" default TUNE_DEFAULT @@ -343,6 +358,9 @@ config TUNE_ZEC12 config TUNE_Z13 bool "IBM z13" +config TUNE_Z14 + bool "IBM z14" + endchoice config 64BIT diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 54e00526b8df..dac821cfcd43 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -31,7 +31,8 @@ mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109 mflags-$(CONFIG_MARCH_Z10) := -march=z10 mflags-$(CONFIG_MARCH_Z196) := -march=z196 mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 -mflags-$(CONFIG_MARCH_Z13) := -march=z13 +mflags-$(CONFIG_MARCH_Z13) := -march=z13 +mflags-$(CONFIG_MARCH_Z14) := -march=z14 export CC_FLAGS_MARCH := $(mflags-y) @@ -44,7 +45,8 @@ cflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109 cflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10 cflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196 cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12 -cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13 +cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13 +cflags-$(CONFIG_MARCH_Z14_TUNE) += -mtune=z14 cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index e8b84894b650..a50238e17867 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -818,6 +818,9 @@ static int __init setup_hwcaps(void) case 0x2965: strcpy(elf_platform, "z13"); break; + case 0x3906: + strcpy(elf_platform, "z14"); + break; } /* diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c index 025ea20fc4b4..3e878ecf522c 100644 --- a/arch/s390/tools/gen_facilities.c +++ b/arch/s390/tools/gen_facilities.c @@ -54,6 +54,9 @@ static struct facility_def facility_defs[] = { #ifdef CONFIG_HAVE_MARCH_Z13_FEATURES 53, /* load-and-zero-rightmost-byte, etc. */ #endif +#ifdef CONFIG_HAVE_MARCH_Z14_FEATURES + 58, /* miscellaneous-instruction-extension 2 */ +#endif -1 /* END */ } }, |