---

yaml
---
r: 57393
b: refs/heads/master
c: 8a2e210
h: refs/heads/master
i:
  57391: a47894d
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9a412847fbe396563acf2a78d5830c9c6c5a5d43
+refs/heads/master: 8a2e21038df74c4401f422346b9371a959c21438

trunk/Documentation/powerpc/booting-without-of.txt

@@ -1,14 +1,69 @@
            Booting the Linux/ppc kernel without Open Firmware
            --------------------------------------------------
 
-
 (c) 2005 Benjamin Herrenschmidt <benh at kernel.crashing.org>,
     IBM Corp.
 (c) 2005 Becky Bruce <becky.bruce at freescale.com>,
     Freescale Semiconductor, FSL SOC and 32-bit additions
 (c) 2006 MontaVista Software, Inc.
     Flash chip node definition
 
+Table of Contents
+=================
+
+  I - Introduction
+    1) Entry point for arch/powerpc
+    2) Board support
+
+  II - The DT block format
+    1) Header
+    2) Device tree generalities
+    3) Device tree "structure" block
+    4) Device tree "strings" block
+
+  III - Required content of the device tree
+    1) Note about cells and address representation
+    2) Note about "compatible" properties
+    3) Note about "name" properties
+    4) Note about node and property names and character set
+    5) Required nodes and properties
+      a) The root node
+      b) The /cpus node
+      c) The /cpus/* nodes
+      d) the /memory node(s)
+      e) The /chosen node
+      f) the /soc<SOCname> node
+
+  IV - "dtc", the device tree compiler
+
+  V - Recommendations for a bootloader
+
+  VI - System-on-a-chip devices and nodes
+    1) Defining child nodes of an SOC
+    2) Representing devices without a current OF specification
+      a) MDIO IO device
+      c) PHY nodes
+      b) Gianfar-compatible ethernet nodes
+      d) Interrupt controllers
+      e) I2C
+      f) Freescale SOC USB controllers
+      g) Freescale SOC SEC Security Engines
+      h) Board Control and Status (BCSR)
+      i) Freescale QUICC Engine module (QE)
+      g) Flash chip nodes
+
+  VII - Specifying interrupt information for devices
+    1) interrupts property
+    2) interrupt-parent property
+    3) OpenPIC Interrupt Controllers
+    4) ISA Interrupt Controllers
+
+  Appendix A - Sample SOC node for MPC8540
+
+
+Revision Information
+====================
+
    May 18, 2005: Rev 0.1 - Initial draft, no chapter III yet.
 
    May 19, 2005: Rev 0.2 - Add chapter III and bits & pieces here or
@@ -1687,7 +1742,7 @@ platforms are moved over to use the flattened-device-tree model.
 		};
 	};
 
-    g) Flash chip nodes
+    j) Flash chip nodes
 
     Flash chips (Memory Technology Devices) are often used for solid state
     file systems on embedded devices.

trunk/Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 22
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
 NAME = Jeff Thinks I Should Change This, But To What?
 
 # *DOCUMENTATION*

trunk/arch/i386/kernel/cpu/mtrr/main.c

@@ -734,10 +734,13 @@ void mtrr_ap_init(void)
  */
 void mtrr_save_state(void)
 {
-	if (smp_processor_id() == 0)
+	int cpu = get_cpu();
+
+	if (cpu == 0)
 		mtrr_save_fixed_ranges(NULL);
 	else
 		smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1, 1);
+	put_cpu();
 }
 
 static int __init mtrr_init_finialize(void)

trunk/arch/powerpc/boot/crt0.S

@@ -13,6 +13,7 @@
 
 	.text
 	/* a procedure descriptor used when booting this as a COFF file */
+	.globl	_zimage_start_opd
 _zimage_start_opd:
 	.long	_zimage_start, 0, 0, 0
 

trunk/arch/powerpc/kernel/of_platform.c

@@ -433,7 +433,7 @@ static int __devinit of_pci_phb_probe(struct of_device *dev,
 	 * Note also that we don't do ISA, this will also be fixed with a
 	 * more massive rework.
 	 */
-	pci_setup_phb_io(phb, 0);
+	pci_setup_phb_io(phb, pci_io_base == 0);
 
 	/* Init pci_dn data structures */
 	pci_devs_phb_init_dynamic(phb);

trunk/arch/powerpc/platforms/cell/cbe_cpufreq.c

@@ -67,6 +67,7 @@ static u64 MIC_Slow_Next_Timer_table[] = {
 	0x00003FC000000000ull,
 };
 
+static unsigned int pmi_frequency_limit = 0;
 /*
  * hardware specific functions
  */
@@ -164,7 +165,6 @@ static int set_pmode(int cpu, unsigned int slow_mode) {
 
 static void cbe_cpufreq_handle_pmi(struct of_device *dev, pmi_message_t pmi_msg)
 {
-	struct cpufreq_policy policy;
 	u8 cpu;
 	u8 cbe_pmode_new;
 
@@ -173,15 +173,27 @@ static void cbe_cpufreq_handle_pmi(struct of_device *dev, pmi_message_t pmi_msg)
 	cpu = cbe_node_to_cpu(pmi_msg.data1);
 	cbe_pmode_new = pmi_msg.data2;
 
-	cpufreq_get_policy(&policy, cpu);
+	pmi_frequency_limit = cbe_freqs[cbe_pmode_new].frequency;
 
-	policy.max = min(policy.max, cbe_freqs[cbe_pmode_new].frequency);
-	policy.min = min(policy.min, policy.max);
+	pr_debug("cbe_handle_pmi: max freq=%d\n", pmi_frequency_limit);
+}
+
+static int pmi_notifier(struct notifier_block *nb,
+				       unsigned long event, void *data)
+{
+	struct cpufreq_policy *policy = data;
 
-	pr_debug("cbe_handle_pmi: new policy.min=%d policy.max=%d\n", policy.min, policy.max);
-	cpufreq_set_policy(&policy);
+	if (event != CPUFREQ_INCOMPATIBLE)
+		return 0;
+
+	cpufreq_verify_within_limits(policy, 0, pmi_frequency_limit);
+	return 0;
 }
 
+static struct notifier_block pmi_notifier_block = {
+	.notifier_call = pmi_notifier,
+};
+
 static struct pmi_handler cbe_pmi_handler = {
 	.type			= PMI_TYPE_FREQ_CHANGE,
 	.handle_pmi_message	= cbe_cpufreq_handle_pmi,
@@ -238,12 +250,21 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 	cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu);
 
+	if (pmi_dev) {
+		/* frequency might get limited later, initialize limit with max_freq */
+		pmi_frequency_limit = max_freq;
+		cpufreq_register_notifier(&pmi_notifier_block, CPUFREQ_POLICY_NOTIFIER);
+	}
+
 	/* this ensures that policy->cpuinfo_min and policy->cpuinfo_max are set correctly */
 	return cpufreq_frequency_table_cpuinfo(policy, cbe_freqs);
 }
 
 static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 {
+	if (pmi_dev)
+		cpufreq_unregister_notifier(&pmi_notifier_block, CPUFREQ_POLICY_NOTIFIER);
+
 	cpufreq_frequency_table_put_attr(policy->cpu);
 	return 0;
 }

trunk/arch/powerpc/platforms/cell/spufs/context.c

@@ -39,7 +39,7 @@ struct spu_context *alloc_spu_context(struct spu_gang *gang)
 	if (spu_init_csa(&ctx->csa))
 		goto out_free;
 	spin_lock_init(&ctx->mmio_lock);
-	spin_lock_init(&ctx->mapping_lock);
+	mutex_init(&ctx->mapping_lock);
 	kref_init(&ctx->kref);
 	mutex_init(&ctx->state_mutex);
 	mutex_init(&ctx->run_mutex);
@@ -103,6 +103,7 @@ void spu_forget(struct spu_context *ctx)
 
 void spu_unmap_mappings(struct spu_context *ctx)
 {
+	mutex_lock(&ctx->mapping_lock);
 	if (ctx->local_store)
 		unmap_mapping_range(ctx->local_store, 0, LS_SIZE, 1);
 	if (ctx->mfc)
@@ -117,6 +118,7 @@ void spu_unmap_mappings(struct spu_context *ctx)
 		unmap_mapping_range(ctx->mss, 0, 0x1000, 1);
 	if (ctx->psmap)
 		unmap_mapping_range(ctx->psmap, 0, 0x20000, 1);
+	mutex_unlock(&ctx->mapping_lock);
 }
 
 /**