[PATCH RFC v2 04/70] MIPS: Add build support for the MIPS R6 ISA
From: Markos Chandras <hidden>
Date: 2015-01-16 10:52:18
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
From: Leonid Yegoshin <redacted> Add build support for the latest revision (R6) of the MIPS ISA. microMIPS is not yet supported. Signed-off-by: Leonid Yegoshin <redacted> Signed-off-by: Markos Chandras <redacted> --- arch/mips/Kconfig | 46 ++++++++++++++++++++++++++++++++++++++++++---- arch/mips/Makefile | 4 ++++ 2 files changed, 46 insertions(+), 4 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3289969ee423..72156ea62a69 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig@@ -1304,6 +1304,20 @@ config CPU_MIPS32_R2 specific type of processor in your system, choose those that one otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. +config CPU_MIPS32_R6 + bool "MIPS32 Release 6 (EXPERIMENTAL)" + depends on SYS_HAS_CPU_MIPS32_R6 + select CPU_HAS_PREFETCH + select CPU_SUPPORTS_32BIT_KERNEL + select CPU_SUPPORTS_HIGHMEM + select CPU_SUPPORTS_MSA + select HAVE_KVM + help + Choose this option to build a kernel for release 6 or later of the + MIPS32 architecture. New MIPS processors, starting with the Warrior + family, are based on a MIPS32r6 processor. If you own an older + processor, you probably need to select MIPS32r1 or MIPS32r2 instead. + config CPU_MIPS64_R1 bool "MIPS64 Release 1" depends on SYS_HAS_CPU_MIPS64_R1
@@ -1339,6 +1353,20 @@ config CPU_MIPS64_R2 specific type of processor in your system, choose those that one otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. +config CPU_MIPS64_R6 + bool "MIPS64 Release 6 (EXPERIMENTAL)" + depends on SYS_HAS_CPU_MIPS64_R6 + select CPU_HAS_PREFETCH + select CPU_SUPPORTS_32BIT_KERNEL + select CPU_SUPPORTS_64BIT_KERNEL + select CPU_SUPPORTS_HIGHMEM + select CPU_SUPPORTS_MSA + help + Choose this option to build a kernel for release 6 or later of the + MIPS64 architecture. New MIPS processors, starting with the Warrior + family, are based on a MIPS64r6 processor. If you own an older + processor, you probably need to select MIPS64r1 or MIPS64r2 instead. + config CPU_R3000 bool "R3000" depends on SYS_HAS_CPU_R3000
@@ -1539,7 +1567,7 @@ endchoice config CPU_MIPS32_3_5_FEATURES bool "MIPS32 Release 3.5 Features" depends on SYS_HAS_CPU_MIPS32_R3_5 - depends on CPU_MIPS32_R2 + depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 help Choose this option to build a kernel for release 2 or later of the MIPS32 architecture including features from the 3.5 release such as
@@ -1659,12 +1687,18 @@ config SYS_HAS_CPU_MIPS32_R2 config SYS_HAS_CPU_MIPS32_R3_5 bool +config SYS_HAS_CPU_MIPS32_R6 + bool + config SYS_HAS_CPU_MIPS64_R1 bool config SYS_HAS_CPU_MIPS64_R2 bool +config SYS_HAS_CPU_MIPS64_R6 + bool + config SYS_HAS_CPU_R3000 bool
@@ -1764,11 +1798,11 @@ endmenu # config CPU_MIPS32 bool - default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 + default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 config CPU_MIPS64 bool - default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 + default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 # # These two indicate the revision of the architecture, either Release 1 or Release 2
@@ -1781,6 +1815,10 @@ config CPU_MIPSR2 bool default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON +config CPU_MIPSR6 + bool + default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 + config EVA bool
@@ -2148,7 +2186,7 @@ config CPU_HAS_SMARTMIPS here. config CPU_MICROMIPS - depends on 32BIT && SYS_SUPPORTS_MICROMIPS + depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 bool "microMIPS" help When this option is enabled the kernel will be built using the
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 2563a088d3b8..b54d5a14b9f0 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile@@ -156,10 +156,14 @@ cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS -Wa,-mips32 -Wa,--trap cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ -Wa,-mips32r2 -Wa,--trap +cflags-$(CONFIG_CPU_MIPS32_R6) += $(call cc-option,-march=mips32r6,-mips32r6 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ + -Wa,-mips32r6 -Wa,--trap cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ -Wa,-mips64 -Wa,--trap cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ -Wa,-mips64r2 -Wa,--trap +cflags-$(CONFIG_CPU_MIPS64_R6) += $(call cc-option,-march=mips64r6,-mips64r6 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ + -Wa,-mips64r6 -Wa,--trap cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ -Wa,--trap
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2.2.1