Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git…

…/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/pseries: Fix build without CONFIG_HOTPLUG_CPU powerpc: Set nr_cpu_ids early and use it to free PACAs powerpc/pseries: Don't register global initcall powerpc/kexec: Fix mismatched ifdefs for PPC64/SMP. edac/mpc85xx: Limit setting/clearing of HID1[RFXE] to e500v1/v2 cores powerpc/85xx: Update dts for PCIe memory maps to match u-boot of Px020RDB
mna · Apr 5, 2011 · 47e8979 · 47e8979
2 parents 884b826 + c60e65d
commit 47e8979
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Showing 10 changed files with 57 additions and 38 deletions.
diff --git a/arch/powerpc/boot/dts/p1020rdb.dts b/arch/powerpc/boot/dts/p1020rdb.dts
@@ -1,7 +1,7 @@
 /*
  * P1020 RDB Device Tree Source
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -553,7 +553,7 @@
 		reg = <0 0xffe09000 0 0x1000>;
 		bus-range = <0 255>;
 		ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
+			  0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <16 2>;
@@ -580,8 +580,8 @@
 		#address-cells = <3>;
 		reg = <0 0xffe0a000 0 0x1000>;
 		bus-range = <0 255>;
-		ranges = <0x2000000 0x0 0xc0000000 0 0xc0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>;
+		ranges = <0x2000000 0x0 0x80000000 0 0x80000000 0x0 0x20000000
+			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <16 2>;
@@ -590,8 +590,8 @@
 			#size-cells = <2>;
 			#address-cells = <3>;
 			device_type = "pci";
-			ranges = <0x2000000 0x0 0xc0000000
-				  0x2000000 0x0 0xc0000000
+			ranges = <0x2000000 0x0 0x80000000
+				  0x2000000 0x0 0x80000000
 				  0x0 0x20000000
 
 				  0x1000000 0x0 0x0

diff --git a/arch/powerpc/boot/dts/p2020rdb.dts b/arch/powerpc/boot/dts/p2020rdb.dts
@@ -1,7 +1,7 @@
 /*
  * P2020 RDB Device Tree Source
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -537,7 +537,7 @@
 		reg = <0 0xffe09000 0 0x1000>;
 		bus-range = <0 255>;
 		ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
+			  0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <25 2>;
@@ -564,8 +564,8 @@
 		#address-cells = <3>;
 		reg = <0 0xffe0a000 0 0x1000>;
 		bus-range = <0 255>;
-		ranges = <0x2000000 0x0 0xc0000000 0 0xc0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>;
+		ranges = <0x2000000 0x0 0x80000000 0 0x80000000 0x0 0x20000000
+			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <26 2>;
@@ -574,8 +574,8 @@
 			#size-cells = <2>;
 			#address-cells = <3>;
 			device_type = "pci";
-			ranges = <0x2000000 0x0 0xc0000000
-				  0x2000000 0x0 0xc0000000
+			ranges = <0x2000000 0x0 0x80000000
+				  0x2000000 0x0 0x80000000
 				  0x0 0x20000000
 
 				  0x1000000 0x0 0x0

diff --git a/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts b/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts
@@ -6,7 +6,7 @@
  * This dts file allows core0 to have memory, l2, i2c, spi, gpio, dma1, usb,
  * eth1, eth2, sdhc, crypto, global-util, pci0.
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -342,7 +342,7 @@
 		reg = <0 0xffe09000 0 0x1000>;
 		bus-range = <0 255>;
 		ranges = <0x2000000 0x0 0xa0000000 0 0xa0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc30000 0x0 0x10000>;
+			  0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <25 2>;

diff --git a/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts b/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts
@@ -7,7 +7,7 @@
  *
  * Please note to add "-b 1" for core1's dts compiling.
  *
- * Copyright 2009 Freescale Semiconductor Inc.
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -162,8 +162,8 @@
 		#address-cells = <3>;
 		reg = <0 0xffe0a000 0 0x1000>;
 		bus-range = <0 255>;
-		ranges = <0x2000000 0x0 0xc0000000 0 0xc0000000 0x0 0x20000000
-			  0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>;
+		ranges = <0x2000000 0x0 0x80000000 0 0x80000000 0x0 0x20000000
+			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
 		clock-frequency = <33333333>;
 		interrupt-parent = <&mpic>;
 		interrupts = <26 2>;
@@ -172,8 +172,8 @@
 			#size-cells = <2>;
 			#address-cells = <3>;
 			device_type = "pci";
-			ranges = <0x2000000 0x0 0xc0000000
-				  0x2000000 0x0 0xc0000000
+			ranges = <0x2000000 0x0 0x80000000
+				  0x2000000 0x0 0x80000000
 				  0x0 0x20000000
 
 				  0x1000000 0x0 0x0

diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
@@ -163,7 +163,7 @@ static void crash_kexec_prepare_cpus(int cpu)
 }
 
 /* wait for all the CPUs to hit real mode but timeout if they don't come in */
-#ifdef CONFIG_PPC_STD_MMU_64
+#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
 static void crash_kexec_wait_realmode(int cpu)
 {
 	unsigned int msecs;
@@ -188,6 +188,8 @@ static void crash_kexec_wait_realmode(int cpu)
 	}
 	mb();
 }
+#else
+static inline void crash_kexec_wait_realmode(int cpu) {}
 #endif
 
 /*
@@ -344,9 +346,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
 	crash_save_cpu(regs, crashing_cpu);
 	crash_kexec_prepare_cpus(crashing_cpu);
 	cpu_set(crashing_cpu, cpus_in_crash);
-#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
 	crash_kexec_wait_realmode(crashing_cpu);
-#endif
 
 	machine_kexec_mask_interrupts();
 

diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
@@ -203,7 +203,7 @@ void __init free_unused_pacas(void)
 {
 	int new_size;
 
-	new_size = PAGE_ALIGN(sizeof(struct paca_struct) * num_possible_cpus());
+	new_size = PAGE_ALIGN(sizeof(struct paca_struct) * nr_cpu_ids);
 
 	if (new_size >= paca_size)
 		return;

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
@@ -509,6 +509,9 @@ void __init smp_setup_cpu_maps(void)
 	 */
 	cpu_init_thread_core_maps(nthreads);
 
+	/* Now that possible cpus are set, set nr_cpu_ids for later use */
+	nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
+
 	free_unused_pacas();
 }
 #endif /* CONFIG_SMP */

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
@@ -378,7 +378,7 @@ static int __init pSeries_init_panel(void)
 
 	return 0;
 }
-arch_initcall(pSeries_init_panel);
+machine_arch_initcall(pseries, pSeries_init_panel);
 
 static int pseries_set_dabr(unsigned long dabr)
 {

diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
@@ -112,10 +112,10 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 
 	/* Fixup atomic count: it exited inside IRQ handler. */
 	task_thread_info(paca[lcpu].__current)->preempt_count	= 0;
-
+#ifdef CONFIG_HOTPLUG_CPU
 	if (get_cpu_current_state(lcpu) == CPU_STATE_INACTIVE)
 		goto out;
-
+#endif
 	/* 
 	 * If the RTAS start-cpu token does not exist then presume the
 	 * cpu is already spinning.
@@ -130,7 +130,9 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
 		return 0;
 	}
 
+#ifdef CONFIG_HOTPLUG_CPU
 out:
+#endif
 	return 1;
 }
 
@@ -144,16 +146,15 @@ static void __devinit smp_xics_setup_cpu(int cpu)
 		vpa_init(cpu);
 
 	cpumask_clear_cpu(cpu, of_spin_mask);
+#ifdef CONFIG_HOTPLUG_CPU
 	set_cpu_current_state(cpu, CPU_STATE_ONLINE);
 	set_default_offline_state(cpu);
-
+#endif
 }
 #endif /* CONFIG_XICS */
 
 static void __devinit smp_pSeries_kick_cpu(int nr)
 {
-	long rc;
-	unsigned long hcpuid;
 	BUG_ON(nr < 0 || nr >= NR_CPUS);
 
 	if (!smp_startup_cpu(nr))
@@ -165,16 +166,20 @@ static void __devinit smp_pSeries_kick_cpu(int nr)
 	 * the processor will continue on to secondary_start
 	 */
 	paca[nr].cpu_start = 1;
-
+#ifdef CONFIG_HOTPLUG_CPU
 	set_preferred_offline_state(nr, CPU_STATE_ONLINE);
 
 	if (get_cpu_current_state(nr) == CPU_STATE_INACTIVE) {
+		long rc;
+		unsigned long hcpuid;
+
 		hcpuid = get_hard_smp_processor_id(nr);
 		rc = plpar_hcall_norets(H_PROD, hcpuid);
 		if (rc != H_SUCCESS)
 			printk(KERN_ERR "Error: Prod to wake up processor %d "
 						"Ret= %ld\n", nr, rc);
 	}
+#endif
 }
 
 static int smp_pSeries_cpu_bootable(unsigned int nr)

diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
@@ -1147,13 +1147,14 @@ static struct platform_driver mpc85xx_mc_err_driver = {
 static void __init mpc85xx_mc_clear_rfxe(void *data)
 {
 	orig_hid1[smp_processor_id()] = mfspr(SPRN_HID1);
-	mtspr(SPRN_HID1, (orig_hid1[smp_processor_id()] & ~0x20000));
+	mtspr(SPRN_HID1, (orig_hid1[smp_processor_id()] & ~HID1_RFXE));
 }
 #endif
 
 static int __init mpc85xx_mc_init(void)
 {
 	int res = 0;
+	u32 pvr = 0;
 
 	printk(KERN_INFO "Freescale(R) MPC85xx EDAC driver, "
 	       "(C) 2006 Montavista Software\n");
@@ -1183,12 +1184,17 @@ static int __init mpc85xx_mc_init(void)
 #endif
 
 #ifdef CONFIG_FSL_SOC_BOOKE
-	/*
-	 * need to clear HID1[RFXE] to disable machine check int
-	 * so we can catch it
-	 */
-	if (edac_op_state == EDAC_OPSTATE_INT)
-		on_each_cpu(mpc85xx_mc_clear_rfxe, NULL, 0);
+	pvr = mfspr(SPRN_PVR);
+
+	if ((PVR_VER(pvr) == PVR_VER_E500V1) ||
+	    (PVR_VER(pvr) == PVR_VER_E500V2)) {
+		/*
+		 * need to clear HID1[RFXE] to disable machine check int
+		 * so we can catch it
+		 */
+		if (edac_op_state == EDAC_OPSTATE_INT)
+			on_each_cpu(mpc85xx_mc_clear_rfxe, NULL, 0);
+	}
 #endif
 
 	return 0;
@@ -1206,7 +1212,12 @@ static void __exit mpc85xx_mc_restore_hid1(void *data)
 static void __exit mpc85xx_mc_exit(void)
 {
 #ifdef CONFIG_FSL_SOC_BOOKE
-	on_each_cpu(mpc85xx_mc_restore_hid1, NULL, 0);
+	u32 pvr = mfspr(SPRN_PVR);
+
+	if ((PVR_VER(pvr) == PVR_VER_E500V1) ||
+	    (PVR_VER(pvr) == PVR_VER_E500V2)) {
+		on_each_cpu(mpc85xx_mc_restore_hid1, NULL, 0);
+	}
 #endif
 #ifdef CONFIG_PCI
 	platform_driver_unregister(&mpc85xx_pci_err_driver);