diff options
8 files changed, 224 insertions, 6 deletions
diff --git a/target/linux/amazon/config-2.6.21 b/target/linux/amazon/config-2.6.21 index c406070b15..6d830e1d76 100644 --- a/target/linux/amazon/config-2.6.21 +++ b/target/linux/amazon/config-2.6.21 @@ -74,6 +74,7 @@ CONFIG_MIPS=y # CONFIG_MIPS_DB1500 is not set # CONFIG_MIPS_DB1550 is not set # CONFIG_MIPS_EV64120 is not set +# CONFIG_MIPS_FPU_EMU is not set CONFIG_MIPS_L1_CACHE_SHIFT=5 # CONFIG_MIPS_MALTA is not set # CONFIG_MIPS_MIRAGE is not set diff --git a/target/linux/generic-2.6/patches-2.6.21/024-mips_disable_fpu.patch b/target/linux/generic-2.6/patches-2.6.21/024-mips_disable_fpu.patch new file mode 100644 index 0000000000..4775069621 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.21/024-mips_disable_fpu.patch @@ -0,0 +1,150 @@ +MIPS: allow disabling the kernel FPU emulator + +This patch allows turning off the in-kernel Algorithmics +FPU emulator support, which allows one to save a couple of +precious blocks on an embedded system. + +Signed-off-by: Florian Fainelli <florian@openwrt.org> + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -938,6 +938,17 @@ config LIMITED_DMA + config MIPS_BONITO64 + bool + ++config MIPS_FPU_EMU ++ bool ++ default n ++ help ++ This option allows building a kernel with or without the Algorithmics ++ FPU emulator enabled. Turning off this option results in a kernel which ++ does not catch floating operations exceptions. Make sure that your toolchain ++ is configured to enable software floating point emulation in that case. ++ ++ If unsure say Y here. ++ + config MIPS_MSC + bool + +--- a/arch/mips/math-emu/Makefile ++++ b/arch/mips/math-emu/Makefile +@@ -1,11 +1,12 @@ + # + # Makefile for the Linux/MIPS kernel FPU emulation. + # ++obj-y := kernel_linkage.o dsemul.o cp1emu.o + +-obj-y := cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ ++obj-$(CONFIG_MIPS_FPU_EMU) += ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ + ieee754xcpt.o dp_frexp.o dp_modf.o dp_div.o dp_mul.o dp_sub.o \ + dp_add.o dp_fsp.o dp_cmp.o dp_logb.o dp_scalb.o dp_simple.o \ + dp_tint.o dp_fint.o dp_tlong.o dp_flong.o sp_frexp.o sp_modf.o \ + sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \ + sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \ +- dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o ++ dp_sqrt.o sp_sqrt.o +--- a/arch/mips/math-emu/cp1emu.c ++++ b/arch/mips/math-emu/cp1emu.c +@@ -56,6 +56,12 @@ + #endif + #define __mips 4 + ++/* Further private data for which no space exists in mips_fpu_struct */ ++ ++struct mips_fpu_emulator_stats fpuemustats; ++ ++#ifdef CONFIG_MIPS_FPU_EMU ++ + /* Function which emulates a floating point instruction. */ + + static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *, +@@ -66,10 +72,6 @@ static int fpux_emu(struct pt_regs *, + struct mips_fpu_struct *, mips_instruction); + #endif + +-/* Further private data for which no space exists in mips_fpu_struct */ +- +-struct mips_fpu_emulator_stats fpuemustats; +- + /* Control registers */ + + #define FPCREG_RID 0 /* $0 = revision id */ +@@ -1277,3 +1279,10 @@ int fpu_emulator_cop1Handler(struct pt_r + + return sig; + } ++#else ++int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, ++ int has_fpu) ++{ ++ return 0; ++} ++#endif /* CONFIG_MIPS_FPU_EMU */ +--- a/arch/mips/math-emu/dsemul.c ++++ b/arch/mips/math-emu/dsemul.c +@@ -112,6 +112,7 @@ int mips_dsemul(struct pt_regs *regs, mi + return SIGILL; /* force out of emulation loop */ + } + ++#ifdef CONFIG_MIPS_FPU_EMU + int do_dsemulret(struct pt_regs *xcp) + { + struct emuframe *fr; +@@ -167,3 +168,9 @@ int do_dsemulret(struct pt_regs *xcp) + + return 1; + } ++#else ++int do_dsemulret(struct pt_regs *xcp) ++{ ++ return 0; ++} ++#endif /* CONFIG_MIPS_FPU_EMU */ +--- a/arch/mips/math-emu/kernel_linkage.c ++++ b/arch/mips/math-emu/kernel_linkage.c +@@ -28,6 +28,7 @@ + + #define SIGNALLING_NAN 0x7ff800007ff80000LL + ++#ifdef CONFIG_MIPS_FPU_EMU + void fpu_emulator_init_fpu(void) + { + static int first = 1; +@@ -111,4 +112,36 @@ int fpu_emulator_restore_context32(struc + + return err; + } +-#endif ++#endif /* CONFIG_64BIT */ ++#else ++ ++void fpu_emulator_init_fpu(void) ++{ ++ printk(KERN_INFO "FPU emulator disabled, make sure your toolchain" ++ "was compiled with software floating point support (soft-float)\n"); ++ return; ++} ++ ++int fpu_emulator_save_context(struct sigcontext __user *sc) ++{ ++ return 0; ++} ++ ++int fpu_emulator_restore_context(struct sigcontext __user *sc) ++{ ++ return 0; ++} ++ ++int fpu_emulator_save_context32(struct sigcontext32 __user *sc) ++{ ++ return 0; ++} ++ ++int fpu_emulator_restore_context32(struct sigcontext32 __user *sc) ++{ ++ return 0; ++} ++ ++#ifdef CONFIG_64BIT ++#endif /* CONFIG_64BIT */ ++#endif /* CONFIG_MIPS_FPU_EMU */ diff --git a/target/linux/generic-2.6/patches-2.6.21/150-netfilter_imq.patch b/target/linux/generic-2.6/patches-2.6.21/150-netfilter_imq.patch index b3ba77b0a4..f57dd5b8f7 100644 --- a/target/linux/generic-2.6/patches-2.6.21/150-netfilter_imq.patch +++ b/target/linux/generic-2.6/patches-2.6.21/150-netfilter_imq.patch @@ -735,7 +735,7 @@ depends on IP_NF_MANGLE --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile -@@ -98,6 +98,7 @@ obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ip +@@ -97,6 +97,7 @@ obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ip obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o diff --git a/target/linux/generic-2.6/patches-2.6.21/160-netfilter_route.patch b/target/linux/generic-2.6/patches-2.6.21/160-netfilter_route.patch index 0d305e3ddb..8fcec08fcf 100644 --- a/target/linux/generic-2.6/patches-2.6.21/160-netfilter_route.patch +++ b/target/linux/generic-2.6/patches-2.6.21/160-netfilter_route.patch @@ -538,9 +538,9 @@ +module_exit(fini); --- a/net/ipv4/netfilter/Kconfig +++ b/net/ipv4/netfilter/Kconfig -@@ -825,5 +825,22 @@ config IP_NF_TARGET_SET - To compile it as a module, choose M here. If unsure, say N. - +@@ -684,5 +684,22 @@ config IP_NF_ARP_MANGLE + Allows altering the ARP packet payload: source and destination + hardware and network addresses. +config IP_NF_TARGET_ROUTE + tristate 'ROUTE target support' @@ -563,7 +563,7 @@ --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile -@@ -101,6 +101,7 @@ obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_EC +@@ -100,6 +100,7 @@ obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_EC obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o diff --git a/target/linux/generic-2.6/patches-2.6.21/30-fix_conflicting_getline.patch b/target/linux/generic-2.6/patches-2.6.21/30-fix_conflicting_getline.patch new file mode 100644 index 0000000000..0a68134f7a --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.21/30-fix_conflicting_getline.patch @@ -0,0 +1,29 @@ +--- a/scripts/unifdef.c ++++ b/scripts/unifdef.c +@@ -206,7 +206,7 @@ static void done(void); + static void error(const char *); + static int findsym(const char *); + static void flushline(bool); +-static Linetype getline(void); ++static Linetype get_line(void); + static Linetype ifeval(const char **); + static void ignoreoff(void); + static void ignoreon(void); +@@ -512,7 +512,7 @@ process(void) + + for (;;) { + linenum++; +- lineval = getline(); ++ lineval = get_line(); + trans_table[ifstate[depth]][lineval](); + debug("process %s -> %s depth %d", + linetype_name[lineval], +@@ -526,7 +526,7 @@ process(void) + * help from skipcomment(). + */ + static Linetype +-getline(void) ++get_line(void) + { + const char *cp; + int cursym; diff --git a/target/linux/generic-2.6/patches-2.6.21/31-use_kbuild.h.patch b/target/linux/generic-2.6/patches-2.6.21/31-use_kbuild.h.patch new file mode 100644 index 0000000000..45c753b55b --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.21/31-use_kbuild.h.patch @@ -0,0 +1,21 @@ +[MIPS] Fix computation of {PGD,PMD,PTE}_T_LOG2. + +For the generation of asm-offset.h to work these need to be evaulatable +by gcc as a constant expression. This issue did exist for a while but +didn't bite because they're only in asm-offset.h for debugging purposes. + +--- a/include/asm-mips/pgtable.h ++++ b/include/asm-mips/pgtable.h +@@ -168,9 +168,9 @@ static inline void pte_clear(struct mm_s + #define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while(0) + #endif + +-#define PGD_T_LOG2 ffz(~sizeof(pgd_t)) +-#define PMD_T_LOG2 ffz(~sizeof(pmd_t)) +-#define PTE_T_LOG2 ffz(~sizeof(pte_t)) ++#define PGD_T_LOG2 (__builtin_ffs(sizeof(pgd_t)) - 1) ++#define PMD_T_LOG2 (__builtin_ffs(sizeof(pmd_t)) - 1) ++#define PTE_T_LOG2 (__builtin_ffs(sizeof(pte_t)) - 1) + + extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; + diff --git a/target/linux/generic-2.6/patches-2.6.21/32-time_fix_timespec_add_ns.patch b/target/linux/generic-2.6/patches-2.6.21/32-time_fix_timespec_add_ns.patch new file mode 100644 index 0000000000..378ee28ed9 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.21/32-time_fix_timespec_add_ns.patch @@ -0,0 +1,17 @@ +time: prevent the loop in timespec_add_ns() from being optimised away + +Since some architectures don't support __udivdi3(). + +--- a/include/linux/time.h ++++ b/include/linux/time.h +@@ -170,6 +170,10 @@ static inline void timespec_add_ns(struc + { + ns += a->tv_nsec; + while(unlikely(ns >= NSEC_PER_SEC)) { ++ /* The following asm() prevents the compiler from ++ * optimising this loop into a modulo operation. */ ++ asm("" : "+r"(ns)); ++ + ns -= NSEC_PER_SEC; + a->tv_sec++; + } diff --git a/target/linux/generic-2.6/patches-2.6.21/900-headers_type_and_time.patch b/target/linux/generic-2.6/patches-2.6.21/900-headers_type_and_time.patch index ed812eef34..8d748598e1 100644 --- a/target/linux/generic-2.6/patches-2.6.21/900-headers_type_and_time.patch +++ b/target/linux/generic-2.6/patches-2.6.21/900-headers_type_and_time.patch @@ -11,7 +11,7 @@ #include <linux/types.h> #ifdef __KERNEL__ -@@ -224,4 +228,6 @@ struct itimerval { +@@ -228,4 +232,6 @@ struct itimerval { */ #define TIMER_ABSTIME 0x01 |