On Sat, 2009-05-16 at 01:09 +0800, Zhang Le wrote: > On 18:38 Fri 15 May , Wu Zhangjin wrote: > > On Fri, 2009-05-15 at 10:25 +0200, Arnaud Patard wrote: > > > - even if it should not affect the kernel, compiling with > > > -march=loongson2f even for 2e (you're matching on loongson2 so 2e and > > > 2f) looks weird. > > > > sorry, this is really a very obvious error, in 2e, -march=loongson2e > > should be used. > > > > to fix this problem, perhaps we can add two new kernel options: > > > > config CPU_LOONGSON2E > > bool > > > > config CPU_LOONGSON2F > > bool > > > > and then use this solution: > > > > config FULOONG2E > > ... > > select CPU_LOONGSON2E > > ... > > > > config YEELOONG2F > > ... > > select CPU_LOONGSON2F > > ... > > > > cflags-$(CONFIG_CPU_LOONGSON2E) += -march=loongson2e -Wa,--trap > > cflags-$(CONFIG_CPU_LOONGSON2F) += -march=loongson2f -Wa,--trap > > > > is this solution okay? > > I have tried to solve this problem once. At that time, there is no loongson-dev > list. So I send my patch to yanhua and zhang fuxin directly. It seems that they > didn't forward that patch to you. > > For the whole patch, please check attachment. It does not applicable on top of > your work any more. > > But here is how I deal with the CPU types: > > @@ -951,14 +929,20 @@ choice > prompt "CPU type" > default CPU_R4X00 > > -config CPU_LOONGSON2 > - bool "Loongson 2" > - depends on SYS_HAS_CPU_LOONGSON2 > - select CPU_SUPPORTS_32BIT_KERNEL > - select CPU_SUPPORTS_64BIT_KERNEL > - select CPU_SUPPORTS_HIGHMEM > +config CPU_LOONGSON2E > + bool "Loongson 2E" > + depends on SYS_HAS_CPU_LOONGSON2E > + select CPU_LOONGSON2 > + help > + The Loongson 2E processor implements the MIPS III instruction set > + with many extensions. > + > +config CPU_LOONGSON2F > + bool "Loongson 2F" > + depends on SYS_HAS_CPU_LOONGSON2F > + select CPU_LOONGSON2 > help > - The Loongson 2E/2F processor implements the MIPS III instruction set > + The Loongson 2F processor implements the MIPS III instruction set > with many extensions. > > config CPU_MIPS32_R1 > @@ -1171,7 +1155,16 @@ config CPU_SB1 > > endchoice > > -config SYS_HAS_CPU_LOONGSON2 > +config CPU_LOONGSON2 > + bool > + select CPU_SUPPORTS_32BIT_KERNEL > + select CPU_SUPPORTS_64BIT_KERNEL > + select CPU_SUPPORTS_HIGHMEM > + > +config SYS_HAS_CPU_LOONGSON2E > + bool > + > +config SYS_HAS_CPU_LOONGSON2F > bool > > config SYS_HAS_CPU_MIPS32_R1 > applied it, thanks!
