]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[MIPS] Add basic SMARTMIPS ASE support
authorFranck Bui-Huu <fbuihuu@gmail.com>
Fri, 2 Feb 2007 16:41:47 +0000 (17:41 +0100)
committerRalf Baechle <ralf@linux-mips.org>
Thu, 22 Feb 2007 00:50:44 +0000 (00:50 +0000)
commit9693a85378b590cc7a4aa2db2174422585c7c8c4
tree43d031f8e555d9276e68bdb158bd264c2d260346
parent9654640d0af8f2de40ff3807d3695109d3463f54
[MIPS] Add basic SMARTMIPS ASE support

This patch adds trivial support for SMARTMIPS extension. This extension
is currently implemented by 4KS[CD] CPUs.

Basically it saves/restores ACX register, which is part of the SMARTMIPS
ASE, when needed. This patch does *not* add any support for Smartmips MMU
features.

Futhermore this patch does not add explicit support for 4KS[CD] CPUs since
they are respectively mips32 and mips32r2 compliant.  So with the current
processor configuration, a platform that has such CPUs needs to select
both configs:

CPU_HAS_SMARTMIPS
SYS_HAS_CPU_MIPS32_R[12]

This is due to the processor configuration which is mixing up all the
architecture variants and the processor types.

The drawback of this, is that we currently pass '-march=mips32' option to
gcc when building a kernel instead of '-march=4ksc' for 4KSC case. This
can lead to a kernel image a little bit bigger than required.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
56 files changed:
arch/mips/Kconfig
arch/mips/Makefile
arch/mips/configs/atlas_defconfig
arch/mips/configs/bigsur_defconfig
arch/mips/configs/capcella_defconfig
arch/mips/configs/cobalt_defconfig
arch/mips/configs/db1000_defconfig
arch/mips/configs/db1100_defconfig
arch/mips/configs/db1200_defconfig
arch/mips/configs/db1500_defconfig
arch/mips/configs/db1550_defconfig
arch/mips/configs/ddb5477_defconfig
arch/mips/configs/decstation_defconfig
arch/mips/configs/e55_defconfig
arch/mips/configs/emma2rh_defconfig
arch/mips/configs/ev64120_defconfig
arch/mips/configs/excite_defconfig
arch/mips/configs/ip22_defconfig
arch/mips/configs/ip27_defconfig
arch/mips/configs/ip32_defconfig
arch/mips/configs/jaguar-atx_defconfig
arch/mips/configs/jazz_defconfig
arch/mips/configs/jmr3927_defconfig
arch/mips/configs/lasat200_defconfig
arch/mips/configs/malta_defconfig
arch/mips/configs/mipssim_defconfig
arch/mips/configs/mpc30x_defconfig
arch/mips/configs/ocelot_3_defconfig
arch/mips/configs/ocelot_c_defconfig
arch/mips/configs/ocelot_defconfig
arch/mips/configs/ocelot_g_defconfig
arch/mips/configs/pb1100_defconfig
arch/mips/configs/pb1500_defconfig
arch/mips/configs/pb1550_defconfig
arch/mips/configs/pnx8550-jbs_defconfig
arch/mips/configs/pnx8550-stb810_defconfig
arch/mips/configs/pnx8550-v2pci_defconfig
arch/mips/configs/qemu_defconfig
arch/mips/configs/rbhma4500_defconfig
arch/mips/configs/rm200_defconfig
arch/mips/configs/sb1250-swarm_defconfig
arch/mips/configs/sead_defconfig
arch/mips/configs/tb0226_defconfig
arch/mips/configs/tb0229_defconfig
arch/mips/configs/tb0287_defconfig
arch/mips/configs/workpad_defconfig
arch/mips/configs/wrppmc_defconfig
arch/mips/configs/yosemite_defconfig
arch/mips/defconfig
arch/mips/kernel/asm-offsets.c
arch/mips/kernel/ptrace.c
arch/mips/kernel/signal.c
arch/mips/kernel/traps.c
include/asm-mips/ptrace.h
include/asm-mips/sigcontext.h
include/asm-mips/stackframe.h