diff options
Diffstat (limited to 'arch/mips/kernel/genex.S')
| -rw-r--r-- | arch/mips/kernel/genex.S | 45 |
1 files changed, 29 insertions, 16 deletions
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index 0a43c9125267..a572ce36a24f 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -19,7 +19,6 @@ #include <asm/mipsregs.h> #include <asm/stackframe.h> #include <asm/sync.h> -#include <asm/war.h> #include <asm/thread_info.h> __INIT @@ -163,7 +162,7 @@ NESTED(handle_int, PT_SIZE, sp) .set push .set noat mfc0 k0, CP0_STATUS -#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX) +#if defined(CONFIG_CPU_R3000) and k0, ST0_IEP bnez k0, 1f @@ -273,18 +272,17 @@ NESTED(except_vec_vi, 0, sp) .set push .set noreorder PTR_LA v1, except_vec_vi_handler -FEXPORT(except_vec_vi_lui) - lui v0, 0 /* Patched */ jr v1 FEXPORT(except_vec_vi_ori) - ori v0, 0 /* Patched */ + ori v0, zero, 0 /* Offset in vi_handlers[] */ .set pop END(except_vec_vi) EXPORT(except_vec_vi_end) /* * Common Vectored Interrupt code - * Complete the register saves and invoke the handler which is passed in $v0 + * Complete the register saves and invoke the handler, $v0 holds + * offset into vi_handlers[] */ NESTED(except_vec_vi_handler, 0, sp) SAVE_TEMP @@ -332,6 +330,7 @@ NESTED(except_vec_vi_handler, 0, sp) /* Save task's sp on IRQ stack so that unwinding can follow it */ LONG_S s1, 0(sp) 2: + PTR_L v0, vi_handlers(v0) jalr v0 /* Restore sp */ @@ -349,8 +348,8 @@ NESTED(ejtag_debug_handler, PT_SIZE, sp) MTC0 k0, CP0_DESAVE mfc0 k0, CP0_DEBUG - sll k0, k0, 30 # Check for SDBBP. - bgez k0, ejtag_return + andi k0, k0, MIPS_DEBUG_DBP # Check for SDBBP. + beqz k0, ejtag_return #ifdef CONFIG_SMP 1: PTR_LA k0, ejtag_debug_buffer_spinlock @@ -476,20 +475,20 @@ NESTED(nmi_handler, PT_SIZE, sp) .endm .macro __build_clear_fpe + CLI + TRACE_IRQS_OFF .set push /* gas fails to assemble cfc1 for some archs (octeon).*/ \ .set mips1 - SET_HARDFLOAT + .set hardfloat cfc1 a1, fcr31 .set pop - CLI - TRACE_IRQS_OFF .endm .macro __build_clear_msa_fpe - _cfcmsa a1, MSA_CSR CLI TRACE_IRQS_OFF + _cfcmsa a1, MSA_CSR .endm .macro __build_clear_ade @@ -498,20 +497,33 @@ NESTED(nmi_handler, PT_SIZE, sp) KMODE .endm + .macro __build_clear_gsexc + .set push + /* + * We need to specify a selector to access the CP0.Diag1 (GSCause) + * register. All GSExc-equipped processors have MIPS32. + */ + .set mips32 + mfc0 a1, CP0_DIAGNOSTIC1 + .set pop + TRACE_IRQS_ON + STI + .endm + .macro __BUILD_silent exception .endm - /* Gas tries to parse the PRINT argument as a string containing + /* Gas tries to parse the ASM_PRINT argument as a string containing string escapes and emits bogus warnings if it believes to recognize an unknown escape code. So make the arguments start with an n and gas will believe \n is ok ... */ .macro __BUILD_verbose nexception LONG_L a1, PT_EPC(sp) #ifdef CONFIG_32BIT - PRINT("Got \nexception at %08lx\012") + ASM_PRINT("Got \nexception at %08lx\012") #endif #ifdef CONFIG_64BIT - PRINT("Got \nexception at %016lx\012") + ASM_PRINT("Got \nexception at %016lx\012") #endif .endm @@ -556,6 +568,7 @@ NESTED(nmi_handler, PT_SIZE, sp) BUILD_HANDLER fpe fpe fpe silent /* #15 */ #endif BUILD_HANDLER ftlb ftlb none silent /* #16 */ + BUILD_HANDLER gsexc gsexc gsexc silent /* #16 */ BUILD_HANDLER msa msa sti silent /* #21 */ BUILD_HANDLER mdmx mdmx sti silent /* #22 */ #ifdef CONFIG_HARDWARE_WATCHPOINTS @@ -631,7 +644,7 @@ isrdhwr: get_saved_sp /* k1 := current_thread_info */ .set noreorder MFC0 k0, CP0_EPC -#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX) +#if defined(CONFIG_CPU_R3000) ori k1, _THREAD_MASK xori k1, _THREAD_MASK LONG_L v1, TI_TP_VALUE(k1) |