Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (454 commits)
  [POWERPC] Cell IOMMU fixed mapping support
  [POWERPC] Split out the ioid fetching/checking logic
  [POWERPC] Add support to cell_iommu_setup_page_tables() for multiple windows
  [POWERPC] Split out the IOMMU logic from cell_dma_dev_setup()
  [POWERPC] Split cell_iommu_setup_hardware() into two parts
  [POWERPC] Split out the logic that allocates struct iommus
  [POWERPC] Allocate the hash table under 1G on cell
  [POWERPC] Add set_dma_ops() to match get_dma_ops()
  [POWERPC] 83xx: Clean up / convert mpc83xx board DTS files to v1 format.
  [POWERPC] 85xx: Only invalidate TLB0 and TLB1
  [POWERPC] 83xx: Fix typo in mpc837x compatible entries
  [POWERPC] 85xx: convert sbc85* boards to use machine_device_initcall
  [POWERPC] 83xx: rework platform Kconfig
  [POWERPC] 85xx: rework platform Kconfig
  [POWERPC] 86xx: Remove unused IRQ defines
  [POWERPC] QE: Explicitly set address-cells and size cells for muram
  [POWERPC] Convert StorCenter DTS file to /dts-v1/ format.
  [POWERPC] 86xx: Convert all 86xx DTS files to /dts-v1/ format.
  [PPC] Remove 85xx from arch/ppc
  [PPC] Remove 83xx from arch/ppc
  ...

1 files changed, 50 insertions, 135 deletions

diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index c78568905c3b..a467a429c2fe 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -194,11 +194,7 @@ static inline int check_io_access(struct pt_regs *regs)
 /* On 4xx, the reason for the machine check or program exception
    is in the ESR. */
 #define get_reason(regs)	((regs)->dsisr)
-#ifndef CONFIG_FSL_BOOKE
 #define get_mc_reason(regs)	((regs)->dsisr)
-#else
-#define get_mc_reason(regs)	(mfspr(SPRN_MCSR))
-#endif
 #define REASON_FP		ESR_FP
 #define REASON_ILLEGAL		(ESR_PIL | ESR_PUO)
 #define REASON_PRIVILEGED	ESR_PPR
@@ -231,39 +227,25 @@ platform_machine_check(struct pt_regs *regs)
 {
 }
 
-void machine_check_exception(struct pt_regs *regs)
+#if defined(CONFIG_4xx)
+int machine_check_4xx(struct pt_regs *regs)
 {
 	unsigned long reason = get_mc_reason(regs);
 
-	if (user_mode(regs)) {
-		regs->msr |= MSR_RI;
-		_exception(SIGBUS, regs, BUS_ADRERR, regs->nip);
-		return;
-	}
-
-#if defined(CONFIG_8xx) && defined(CONFIG_PCI)
-	/* the qspan pci read routines can cause machine checks -- Cort */
-	bad_page_fault(regs, regs->dar, SIGBUS);
-	return;
-#endif
-
-	if (debugger_fault_handler) {
-		debugger_fault_handler(regs);
-		regs->msr |= MSR_RI;
-		return;
-	}
-
-	if (check_io_access(regs))
-		return;
-
-#if defined(CONFIG_4xx) && !defined(CONFIG_440A)
 	if (reason & ESR_IMCP) {
 		printk("Instruction");
 		mtspr(SPRN_ESR, reason & ~ESR_IMCP);
 	} else
 		printk("Data");
 	printk(" machine check in kernel mode.\n");
-#elif defined(CONFIG_440A)
+
+	return 0;
+}
+
+int machine_check_440A(struct pt_regs *regs)
+{
+	unsigned long reason = get_mc_reason(regs);
+
 	printk("Machine check in kernel mode.\n");
 	if (reason & ESR_IMCP){
 		printk("Instruction Synchronous Machine Check exception\n");
@@ -293,55 +275,13 @@ void machine_check_exception(struct pt_regs *regs)
 		/* Clear MCSR */
 		mtspr(SPRN_MCSR, mcsr);
 	}
-#elif defined (CONFIG_E500)
-	printk("Machine check in kernel mode.\n");
-	printk("Caused by (from MCSR=%lx): ", reason);
-
-	if (reason & MCSR_MCP)
-		printk("Machine Check Signal\n");
-	if (reason & MCSR_ICPERR)
-		printk("Instruction Cache Parity Error\n");
-	if (reason & MCSR_DCP_PERR)
-		printk("Data Cache Push Parity Error\n");
-	if (reason & MCSR_DCPERR)
-		printk("Data Cache Parity Error\n");
-	if (reason & MCSR_GL_CI)
-		printk("Guarded Load or Cache-Inhibited stwcx.\n");
-	if (reason & MCSR_BUS_IAERR)
-		printk("Bus - Instruction Address Error\n");
-	if (reason & MCSR_BUS_RAERR)
-		printk("Bus - Read Address Error\n");
-	if (reason & MCSR_BUS_WAERR)
-		printk("Bus - Write Address Error\n");
-	if (reason & MCSR_BUS_IBERR)
-		printk("Bus - Instruction Data Error\n");
-	if (reason & MCSR_BUS_RBERR)
-		printk("Bus - Read Data Bus Error\n");
-	if (reason & MCSR_BUS_WBERR)
-		printk("Bus - Write Data Bus Error\n");
-	if (reason & MCSR_BUS_IPERR)
-		printk("Bus - Instruction Parity Error\n");
-	if (reason & MCSR_BUS_RPERR)
-		printk("Bus - Read Parity Error\n");
-#elif defined (CONFIG_E200)
-	printk("Machine check in kernel mode.\n");
-	printk("Caused by (from MCSR=%lx): ", reason);
-
-	if (reason & MCSR_MCP)
-		printk("Machine Check Signal\n");
-	if (reason & MCSR_CP_PERR)
-		printk("Cache Push Parity Error\n");
-	if (reason & MCSR_CPERR)
-		printk("Cache Parity Error\n");
-	if (reason & MCSR_EXCP_ERR)
-		printk("ISI, ITLB, or Bus Error on first instruction fetch for an exception handler\n");
-	if (reason & MCSR_BUS_IRERR)
-		printk("Bus - Read Bus Error on instruction fetch\n");
-	if (reason & MCSR_BUS_DRERR)
-		printk("Bus - Read Bus Error on data load\n");
-	if (reason & MCSR_BUS_WRERR)
-		printk("Bus - Write Bus Error on buffered store or cache line push\n");
-#else /* !CONFIG_4xx && !CONFIG_E500 && !CONFIG_E200 */
+	return 0;
+}
+#else
+int machine_check_generic(struct pt_regs *regs)
+{
+	unsigned long reason = get_mc_reason(regs);
+
 	printk("Machine check in kernel mode.\n");
 	printk("Caused by (from SRR1=%lx): ", reason);
 	switch (reason & 0x601F0000) {
@@ -371,7 +311,39 @@ void machine_check_exception(struct pt_regs *regs)
 	default:
 		printk("Unknown values in msr\n");
 	}
-#endif /* CONFIG_4xx */
+	return 0;
+}
+#endif /* everything else */
+
+void machine_check_exception(struct pt_regs *regs)
+{
+	int recover = 0;
+
+	if (cur_cpu_spec->machine_check)
+		recover = cur_cpu_spec->machine_check(regs);
+	if (recover > 0)
+		return;
+
+	if (user_mode(regs)) {
+		regs->msr |= MSR_RI;
+		_exception(SIGBUS, regs, BUS_ADRERR, regs->nip);
+		return;
+	}
+
+#if defined(CONFIG_8xx) && defined(CONFIG_PCI)
+	/* the qspan pci read routines can cause machine checks -- Cort */
+	bad_page_fault(regs, regs->dar, SIGBUS);
+	return;
+#endif
+
+	if (debugger_fault_handler) {
+		debugger_fault_handler(regs);
+		regs->msr |= MSR_RI;
+		return;
+	}
+
+	if (check_io_access(regs))
+		return;
 
 	/*
 	 * Optional platform-provided routine to print out
@@ -830,63 +802,6 @@ void altivec_assist_exception(struct pt_regs *regs)
 }
 #endif /* CONFIG_ALTIVEC */
 
-#ifdef CONFIG_E500
-void performance_monitor_exception(struct pt_regs *regs)
-{
-	perf_irq(regs);
-}
-#endif
-
-#ifdef CONFIG_FSL_BOOKE
-void CacheLockingException(struct pt_regs *regs, unsigned long address,
-			   unsigned long error_code)
-{
-	/* We treat cache locking instructions from the user
-	 * as priv ops, in the future we could try to do
-	 * something smarter
-	 */
-	if (error_code & (ESR_DLK|ESR_ILK))
-		_exception(SIGILL, regs, ILL_PRVOPC, regs->nip);
-	return;
-}
-#endif /* CONFIG_FSL_BOOKE */
-
-#ifdef CONFIG_SPE
-void SPEFloatingPointException(struct pt_regs *regs)
-{
-	unsigned long spefscr;
-	int fpexc_mode;
-	int code = 0;
-
-	spefscr = current->thread.spefscr;
-	fpexc_mode = current->thread.fpexc_mode;
-
-	/* Hardware does not necessarily set sticky
-	 * underflow/overflow/invalid flags */
-	if ((spefscr & SPEFSCR_FOVF) && (fpexc_mode & PR_FP_EXC_OVF)) {
-		code = FPE_FLTOVF;
-		spefscr |= SPEFSCR_FOVFS;
-	}
-	else if ((spefscr & SPEFSCR_FUNF) && (fpexc_mode & PR_FP_EXC_UND)) {
-		code = FPE_FLTUND;
-		spefscr |= SPEFSCR_FUNFS;
-	}
-	else if ((spefscr & SPEFSCR_FDBZ) && (fpexc_mode & PR_FP_EXC_DIV))
-		code = FPE_FLTDIV;
-	else if ((spefscr & SPEFSCR_FINV) && (fpexc_mode & PR_FP_EXC_INV)) {
-		code = FPE_FLTINV;
-		spefscr |= SPEFSCR_FINVS;
-	}
-	else if ((spefscr & (SPEFSCR_FG | SPEFSCR_FX)) && (fpexc_mode & PR_FP_EXC_RES))
-		code = FPE_FLTRES;
-
-	current->thread.spefscr = spefscr;
-
-	_exception(SIGFPE, regs, code, regs->nip);
-	return;
-}
-#endif
-
 #ifdef CONFIG_BOOKE_WDT
 /*
  * Default handler for a Watchdog exception,