From: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Allow no CPU/platform type for allnoconfig - Provide a dummy value for FPSTATESIZE if no CPU type was selected - Provide a dummy value for NR_IRQS if no platform type was selected - Warn the user if no CPU or platform type was selected Note: you still cannot build an allnoconfig kernel, as CONFIG_SWAP=n doesn't build and we cannot easily fix that (http://groups.google.com/group/linux.kernel/browse_thread/thread/d430c78b07e1827b) Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> --- arch/m68k/kernel/setup.c | 6 ++++++ include/asm-m68k/fpu.h | 10 +++++----- include/asm-m68k/irq.h | 2 +- include/asm-m68k/tlbflush.h | 8 ++++---- 4 files changed, 16 insertions(+), 10 deletions(-) --- a/arch/m68k/kernel/setup.c +++ b/arch/m68k/kernel/setup.c @@ -26,6 +26,7 @@ #include <asm/bootinfo.h> #include <asm/setup.h> +#include <asm/fpu.h> #include <asm/irq.h> #include <asm/io.h> #include <asm/machdep.h> @@ -40,6 +41,11 @@ #include <asm/dvma.h> #endif +#if !FPSTATESIZE || !NR_IRQS +#warning No CPU/platform type selected, your kernel will not work! +#warning Are you building an allnoconfig kernel? +#endif + unsigned long m68k_machtype; EXPORT_SYMBOL(m68k_machtype); unsigned long m68k_cputype; --- a/include/asm-m68k/fpu.h +++ b/include/asm-m68k/fpu.h @@ -7,15 +7,15 @@ */ #if defined(CONFIG_M68020) || defined(CONFIG_M68030) -#define FPSTATESIZE (216/sizeof(unsigned char)) +#define FPSTATESIZE (216) #elif defined(CONFIG_M68040) -#define FPSTATESIZE (96/sizeof(unsigned char)) +#define FPSTATESIZE (96) #elif defined(CONFIG_M68KFPU_EMU) -#define FPSTATESIZE (28/sizeof(unsigned char)) +#define FPSTATESIZE (28) #elif defined(CONFIG_M68060) -#define FPSTATESIZE (12/sizeof(unsigned char)) +#define FPSTATESIZE (12) #else -#define FPSTATESIZE error no_cpu_type_configured +#define FPSTATESIZE (0) #endif #endif /* __M68K_FPU_H */ --- a/include/asm-m68k/irq.h +++ b/include/asm-m68k/irq.h @@ -24,7 +24,7 @@ #elif defined(CONFIG_HP300) #define NR_IRQS 8 #else -#error unknown nr of irqs +#define NR_IRQS 0 #endif /* --- a/include/asm-m68k/tlbflush.h +++ b/include/asm-m68k/tlbflush.h @@ -16,7 +16,7 @@ static inline void flush_tlb_kernel_page ".chip 68k" : : "a" (addr)); set_fs(old_fs); - } else + } else if (CPU_IS_020_OR_030) __asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr)); } @@ -29,7 +29,7 @@ static inline void __flush_tlb(void) __asm__ __volatile__(".chip 68040\n\t" "pflushan\n\t" ".chip 68k"); - else + else if (CPU_IS_020_OR_030) __asm__ __volatile__("pflush #0,#4"); } @@ -45,7 +45,7 @@ static inline void __flush_tlb_one(unsig { if (CPU_IS_040_OR_060) __flush_tlb040_one(addr); - else + else if (CPU_IS_020_OR_030) __asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr)); } @@ -60,7 +60,7 @@ static inline void flush_tlb_all(void) __asm__ __volatile__(".chip 68040\n\t" "pflusha\n\t" ".chip 68k"); - else + else if (CPU_IS_020_OR_030) __asm__ __volatile__("pflusha"); } -- Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
