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MIPS: Add build support for the MIPS R6 ISA

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Add build support for the latest revision (R6) of the MIPS ISA.
microMIPS is not yet supported.

Link: http://www.linux-mips.org/archives/linux-mips/2015-01/msg00386.html
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
This commit is contained in:
Leonid Yegoshin 2014-10-27 10:34:11 +00:00 committed by Markos Chandras
parent b2498af56a
commit 7fd08ca58a
2 changed files with 45 additions and 4 deletions
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47
arch/mips/Kconfig
View File

@ -1305,6 +1305,21 @@ 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
select MIPS_O32_FP64_SUPPORT
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
@ -1340,6 +1355,20 @@ 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
@ -1540,7 +1569,7 @@ 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
@ -1660,12 +1689,18 @@ 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
@ -1765,11 +1800,11 @@ 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
@ -1782,6 +1817,10 @@ 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
@ -2149,7 +2188,7 @@ 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

2
arch/mips/Makefile
View File

@ -138,10 +138,12 @@ 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) += -march=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) += -march=mips64r6 -Wa,--trap
cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
-Wa,--trap