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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-01-14 19:50:19 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-01-22 14:15:57 +0300 |
| commit | f8b2dcbd9e6d1479b9b5a9e9e78bbaf783bde819 (patch) | |
| tree | 0752b6462bcee89772569a8fff515863ecec6521 /arch | |
| parent | e982506730815f9e3bcd148d06b5b6d778d9c46c (diff) | |
| download | linux-f8b2dcbd9e6d1479b9b5a9e9e78bbaf783bde819.tar.xz | |
s390: add z13 code generation support
Allow to generate code that only runs on z13 machines.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/Kconfig | 18 | ||||
| -rw-r--r-- | arch/s390/Makefile | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/head.S | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 3 |
4 files changed, 26 insertions, 1 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index e79c3eab40b9..06c6d9ab5a8d 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -185,6 +185,10 @@ config HAVE_MARCH_ZEC12_FEATURES def_bool n select HAVE_MARCH_Z196_FEATURES +config HAVE_MARCH_Z13_FEATURES + def_bool n + select HAVE_MARCH_ZEC12_FEATURES + choice prompt "Processor type" default MARCH_G5 @@ -244,6 +248,14 @@ config MARCH_ZEC12 2827 series). The kernel will be slightly faster but will not work on older machines. +config MARCH_Z13 + bool "IBM z13" + select HAVE_MARCH_Z13_FEATURES if 64BIT + help + Select this to enable optimizations for IBM z13 (2964 series). + The kernel will be slightly faster but will not work on older + machines. + endchoice config MARCH_G5_TUNE @@ -267,6 +279,9 @@ config MARCH_Z196_TUNE config MARCH_ZEC12_TUNE def_bool TUNE_ZEC12 || MARCH_ZEC12 && TUNE_DEFAULT +config MARCH_Z13_TUNE + def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT + choice prompt "Tune code generation" default TUNE_DEFAULT @@ -305,6 +320,9 @@ config TUNE_Z196 config TUNE_ZEC12 bool "IBM zBC12 and zEC12" +config TUNE_Z13 + bool "IBM z13" + endchoice config 64BIT diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 878e67973151..e742ec5de9a7 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -42,6 +42,7 @@ 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 aflags-y += $(mflags-y) cflags-y += $(mflags-y) @@ -53,6 +54,7 @@ cflags-$(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 #KBUILD_IMAGE is necessary for make rpm KBUILD_IMAGE :=arch/s390/boot/image diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index d62eee11f0b5..132f4c9ade60 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -436,7 +436,9 @@ ENTRY(startup_kdump) # followed by the facility words. #if defined(CONFIG_64BIT) -#if defined(CONFIG_MARCH_ZEC12) +#if defined(CONFIG_MARCH_Z13) + .long 3, 0xc100eff2, 0xf46ce800, 0x00400000 +#elif defined(CONFIG_MARCH_ZEC12) .long 3, 0xc100eff2, 0xf46ce800, 0x00400000 #elif defined(CONFIG_MARCH_Z196) .long 2, 0xc100eff2, 0xf46c0000 diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 4e532c67832f..bfac77ada4f2 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -810,6 +810,9 @@ static void __init setup_hwcaps(void) case 0x2828: strcpy(elf_platform, "zEC12"); break; + case 0x2964: + strcpy(elf_platform, "z13"); + break; } } |