diff options
Diffstat (limited to 'arch/blackfin')
-rw-r--r-- | arch/blackfin/include/asm/pda.h | 6 | ||||
-rw-r--r-- | arch/blackfin/kernel/asm-offsets.c | 6 | ||||
-rw-r--r-- | arch/blackfin/kernel/traps.c | 8 | ||||
-rw-r--r-- | arch/blackfin/mach-bf561/secondary.S | 8 | ||||
-rw-r--r-- | arch/blackfin/mach-common/entry.S | 22 | ||||
-rw-r--r-- | arch/blackfin/mach-common/head.S | 8 |
6 files changed, 37 insertions, 21 deletions
diff --git a/arch/blackfin/include/asm/pda.h b/arch/blackfin/include/asm/pda.h index 69b96b4..a6f9569 100644 --- a/arch/blackfin/include/asm/pda.h +++ b/arch/blackfin/include/asm/pda.h @@ -61,6 +61,12 @@ struct blackfin_pda { /* Per-processor Data Area */ unsigned long retx; unsigned long seqstat; unsigned int __nmi_count; /* number of times NMI asserted on this CPU */ +#ifdef CONFIG_DEBUG_DOUBLEFAULT + unsigned long dcplb_doublefault_addr; + unsigned long icplb_doublefault_addr; + unsigned long retx_doublefault; + unsigned long seqstat_doublefault; +#endif }; extern struct blackfin_pda cpu_pda[]; diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c index 8ad4f2c..f05d1b9 100644 --- a/arch/blackfin/kernel/asm-offsets.c +++ b/arch/blackfin/kernel/asm-offsets.c @@ -153,6 +153,12 @@ int main(void) DEFINE(PDA_ICPLB, offsetof(struct blackfin_pda, icplb_fault_addr)); DEFINE(PDA_RETX, offsetof(struct blackfin_pda, retx)); DEFINE(PDA_SEQSTAT, offsetof(struct blackfin_pda, seqstat)); +#ifdef CONFIG_DEBUG_DOUBLEFAULT + DEFINE(PDA_DF_DCPLB, offsetof(struct blackfin_pda, dcplb_doublefault_addr)); + DEFINE(PDA_DF_ICPLB, offsetof(struct blackfin_pda, icplb_doublefault_addr)); + DEFINE(PDA_DF_SEQSTAT, offsetof(struct blackfin_pda, seqstat_doublefault)); + DEFINE(PDA_DF_RETX, offsetof(struct blackfin_pda, retx_doublefault)); +#endif #ifdef CONFIG_SMP /* Inter-core lock (in L2 SRAM) */ DEFINE(SIZEOF_CORELOCK, sizeof(struct corelock_slot)); diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 644e35e..0904430 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -229,12 +229,12 @@ asmlinkage void double_fault_c(struct pt_regs *fp) if (((long)fp->seqstat & SEQSTAT_EXCAUSE) == VEC_UNCOV) { unsigned int cpu = smp_processor_id(); char buf[150]; - decode_address(buf, cpu_pda[cpu].retx); + decode_address(buf, cpu_pda[cpu].retx_doublefault); printk(KERN_EMERG "While handling exception (EXCAUSE = 0x%x) at %s:\n", - (unsigned int)cpu_pda[cpu].seqstat & SEQSTAT_EXCAUSE, buf); - decode_address(buf, cpu_pda[cpu].dcplb_fault_addr); + (unsigned int)cpu_pda[cpu].seqstat_doublefault & SEQSTAT_EXCAUSE, buf); + decode_address(buf, cpu_pda[cpu].dcplb_doublefault_addr); printk(KERN_NOTICE " DCPLB_FAULT_ADDR: %s\n", buf); - decode_address(buf, cpu_pda[cpu].icplb_fault_addr); + decode_address(buf, cpu_pda[cpu].icplb_doublefault_addr); printk(KERN_NOTICE " ICPLB_FAULT_ADDR: %s\n", buf); decode_address(buf, fp->retx); diff --git a/arch/blackfin/mach-bf561/secondary.S b/arch/blackfin/mach-bf561/secondary.S index 35280f0..097550f 100644 --- a/arch/blackfin/mach-bf561/secondary.S +++ b/arch/blackfin/mach-bf561/secondary.S @@ -126,22 +126,22 @@ ENTRY(_coreb_trampoline_start) * below */ GET_PDA(p0, r0); - r7 = [p0 + PDA_RETX]; + r7 = [p0 + PDA_DF_RETX]; p1.l = _init_saved_retx_coreb; p1.h = _init_saved_retx_coreb; [p1] = r7; - r7 = [p0 + PDA_DCPLB]; + r7 = [p0 + PDA_DF_DCPLB]; p1.l = _init_saved_dcplb_fault_addr_coreb; p1.h = _init_saved_dcplb_fault_addr_coreb; [p1] = r7; - r7 = [p0 + PDA_ICPLB]; + r7 = [p0 + PDA_DF_ICPLB]; p1.l = _init_saved_icplb_fault_addr_coreb; p1.h = _init_saved_icplb_fault_addr_coreb; [p1] = r7; - r7 = [p0 + PDA_SEQSTAT]; + r7 = [p0 + PDA_DF_SEQSTAT]; p1.l = _init_saved_seqstat_coreb; p1.h = _init_saved_seqstat_coreb; [p1] = r7; diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index cbc5b6d..4e8e3fe 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -326,8 +326,6 @@ ENTRY(_ex_trap_c) [p4] = r7; csync; -#ifndef CONFIG_DEBUG_DOUBLEFAULT - /* * Save these registers, as they are only valid in exception context * (where we are now - as soon as we defer to IRQ5, they can change) @@ -347,7 +345,10 @@ ENTRY(_ex_trap_c) r6 = retx; [p5 + PDA_RETX] = r6; -#endif + + r6 = SEQSTAT; + [p5 + PDA_SEQSTAT] = r6; + /* Save the state of single stepping */ r6 = SYSCFG; [p5 + PDA_SYSCFG] = r6; @@ -444,6 +445,9 @@ ENTRY(_exception_to_level5) r6 = [p5 + PDA_SYSCFG]; [sp + PT_SYSCFG] = r6; + r6 = [p5 + PDA_SEQSTAT]; /* Read back seqstat */ + [sp + PT_SEQSTAT] = r6; + /* Restore the hardware error vector. */ r7.h = _evt_ivhw; r7.l = _evt_ivhw; @@ -496,7 +500,7 @@ ENTRY(_trap) /* Exception: 4th entry into system event table(supervisor mode)*/ */ EX_SCRATCH_REG = sp; GET_PDA_SAFE(sp); - sp = [sp + PDA_EXSTACK] + sp = [sp + PDA_EXSTACK]; /* Try to deal with syscalls quickly. */ [--sp] = ASTAT; [--sp] = (R7:6,P5:4); @@ -532,18 +536,18 @@ ENTRY(_trap) /* Exception: 4th entry into system event table(supervisor mode)*/ p4.l = lo(DCPLB_FAULT_ADDR); p4.h = hi(DCPLB_FAULT_ADDR); r7 = [p4]; - [p5 + PDA_DCPLB] = r7; + [p5 + PDA_DF_DCPLB] = r7; p4.l = lo(ICPLB_FAULT_ADDR); p4.h = hi(ICPLB_FAULT_ADDR); r7 = [p4]; - [p5 + PDA_ICPLB] = r7; + [p5 + PDA_DF_ICPLB] = r7; - r6 = retx; - [p5 + PDA_RETX] = r6; + r7 = retx; + [p5 + PDA_DF_RETX] = r7; r7 = SEQSTAT; /* reason code is in bit 5:0 */ - [p5 + PDA_SEQSTAT] = r7; + [p5 + PDA_DF_SEQSTAT] = r7; #else r7 = SEQSTAT; /* reason code is in bit 5:0 */ #endif diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S index 6691012..9c79dfe 100644 --- a/arch/blackfin/mach-common/head.S +++ b/arch/blackfin/mach-common/head.S @@ -124,22 +124,22 @@ ENTRY(__start) * below */ GET_PDA(p0, r0); - r6 = [p0 + PDA_RETX]; + r6 = [p0 + PDA_DF_RETX]; p1.l = _init_saved_retx; p1.h = _init_saved_retx; [p1] = r6; - r6 = [p0 + PDA_DCPLB]; + r6 = [p0 + PDA_DF_DCPLB]; p1.l = _init_saved_dcplb_fault_addr; p1.h = _init_saved_dcplb_fault_addr; [p1] = r6; - r6 = [p0 + PDA_ICPLB]; + r6 = [p0 + PDA_DF_ICPLB]; p1.l = _init_saved_icplb_fault_addr; p1.h = _init_saved_icplb_fault_addr; [p1] = r6; - r6 = [p0 + PDA_SEQSTAT]; + r6 = [p0 + PDA_DF_SEQSTAT]; p1.l = _init_saved_seqstat; p1.h = _init_saved_seqstat; [p1] = r6; |