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

…/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix size check for hugetlbfs
  [POWERPC] Fix initialization and usage of dma_mask
  [POWERPC] Fix more section mismatches in head_64.S
  [POWERPC] Revert "[POWERPC] Add 'mdio' to bus scan id list for platforms with QE UEC"
  [POWERPC] PS3: Update ps3_defconfig
  [POWERPC] PS3: Remove text saying PS3 support is incomplete
  [POWERPC] PS3: Fix storage probe logic
  [POWERPC] cell: Move SPU affinity init to spu_management_of_ops
  [POWERPC] Fix potential duplicate entry in SLB shadow buffer

arch/powerpc/kernel/head_64.S

@@ -1672,8 +1672,9 @@ _GLOBAL(__start_initialization_multiplatform)
 	 * Are we booted from a PROM Of-type client-interface ?
 	 */
 	cmpldi	cr0,r5,0
-	bne	.__boot_from_prom		/* yes -> prom */
-
+	beq	1f
+	b	.__boot_from_prom		/* yes -> prom */
+1:
 	/* Save parameters */
 	mr	r31,r3
 	mr	r30,r4
@@ -1701,7 +1702,7 @@ _GLOBAL(__start_initialization_multiplatform)
 	bl	.__mmu_off
 	b	.__after_prom_start
 
-_STATIC(__boot_from_prom)
+_INIT_STATIC(__boot_from_prom)
 	/* Save parameters */
 	mr	r31,r3
 	mr	r30,r4
@@ -1768,9 +1769,10 @@ _STATIC(__after_prom_start)
 					/*	the source addr		 */
 
 	cmpdi	r4,0			/* In some cases the loader may  */
-	beq	.start_here_multiplatform /* have already put us at zero */
+	bne	1f
+	b	.start_here_multiplatform /* have already put us at zero */
 					/* so we can skip the copy.      */
-	LOAD_REG_IMMEDIATE(r5,copy_to_here) /* # bytes of memory to copy */
+1:	LOAD_REG_IMMEDIATE(r5,copy_to_here) /* # bytes of memory to copy */
 	sub	r5,r5,r27
 
 	li	r6,0x100		/* Start offset, the first 0x100 */
@@ -1957,7 +1959,7 @@ _GLOBAL(enable_64b_mode)
 /*
  * This is where the main kernel code starts.
  */
-_STATIC(start_here_multiplatform)
+_INIT_STATIC(start_here_multiplatform)
 	/* get a new offset, now that the kernel has moved. */
 	bl	.reloc_offset
 	mr	r26,r3
@@ -2019,7 +2021,7 @@ _STATIC(start_here_multiplatform)
 	b	.	/* prevent speculative execution */
 
 	/* This is where all platforms converge execution */
-_STATIC(start_here_common)
+_INIT_STATIC(start_here_common)
 	/* relocation is on at this point */
 
 	/* The following code sets up the SP and TOC now that we are */

arch/powerpc/kernel/pci_64.c

@@ -313,6 +313,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 
 	dev->current_state = 4;		/* unknown power state */
 	dev->error_state = pci_channel_io_normal;
+	dev->dma_mask = 0xffffffff;
 
 	if (!strcmp(type, "pci") || !strcmp(type, "pciex")) {
 		/* a PCI-PCI bridge */

arch/powerpc/mm/slb.c

@@ -69,20 +69,9 @@ static inline void slb_shadow_update(unsigned long ea,
 	smp_wmb();
 }
 
-static inline void create_shadowed_slbe(unsigned long ea, unsigned long flags,
-					unsigned long entry)
+static inline void slb_shadow_clear(unsigned long entry)
 {
-	/*
-	 * Updating the shadow buffer before writing the SLB ensures
-	 * we don't get a stale entry here if we get preempted by PHYP
-	 * between these two statements.
-	 */
-	slb_shadow_update(ea, flags, entry);
-
-	asm volatile("slbmte  %0,%1" :
-		     : "r" (mk_vsid_data(ea, flags)),
-		       "r" (mk_esid_data(ea, entry))
-		     : "memory" );
+	get_slb_shadow()->save_area[entry].esid = 0;
 }
 
 void slb_flush_and_rebolt(void)
@@ -100,11 +89,13 @@ void slb_flush_and_rebolt(void)
 	vflags = SLB_VSID_KERNEL | vmalloc_llp;
 
 	ksp_esid_data = mk_esid_data(get_paca()->kstack, 2);
-	if ((ksp_esid_data & ESID_MASK) == PAGE_OFFSET)
+	if ((ksp_esid_data & ESID_MASK) == PAGE_OFFSET) {
 		ksp_esid_data &= ~SLB_ESID_V;
-
-	/* Only third entry (stack) may change here so only resave that */
-	slb_shadow_update(get_paca()->kstack, lflags, 2);
+		slb_shadow_clear(2);
+	} else {
+		/* Update stack entry; others don't change */
+		slb_shadow_update(get_paca()->kstack, lflags, 2);
+	}
 
 	/* We need to do this all in asm, so we're sure we don't touch
 	 * the stack between the slbia and rebolting it. */
@@ -235,16 +226,12 @@ void slb_initialize(void)
 	vflags = SLB_VSID_KERNEL | vmalloc_llp;
 
 	/* Invalidate the entire SLB (even slot 0) & all the ERATS */
-	asm volatile("isync":::"memory");
-	asm volatile("slbmte  %0,%0"::"r" (0) : "memory");
-	asm volatile("isync; slbia; isync":::"memory");
-	create_shadowed_slbe(PAGE_OFFSET, lflags, 0);
-
-	create_shadowed_slbe(VMALLOC_START, vflags, 1);
-
-	/* We don't bolt the stack for the time being - we're in boot,
-	 * so the stack is in the bolted segment.  By the time it goes
-	 * elsewhere, we'll call _switch() which will bolt in the new
-	 * one. */
-	asm volatile("isync":::"memory");
+	slb_shadow_update(PAGE_OFFSET, lflags, 0);
+	asm volatile("isync; slbia; sync; slbmte  %0,%1; isync" ::
+		     "r" (get_slb_shadow()->save_area[0].vsid),
+		     "r" (get_slb_shadow()->save_area[0].esid) : "memory");
+
+	slb_shadow_update(VMALLOC_START, vflags, 1);
+
+	slb_flush_and_rebolt();
 }

arch/powerpc/mm/slice.c

@@ -405,6 +405,8 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 
 	if (len > mm->task_size)
 		return -ENOMEM;
+	if (len & ((1ul << pshift) - 1))
+		return -EINVAL;
 	if (fixed && (addr & ((1ul << pshift) - 1)))
 		return -EINVAL;
 	if (fixed && addr > (mm->task_size - len))

arch/powerpc/platforms/83xx/mpc832x_mds.c

@@ -106,7 +106,6 @@ static struct of_device_id mpc832x_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
-	{ .type = "mdio", },
 	{},
 };
 

arch/powerpc/platforms/83xx/mpc832x_rdb.c

@@ -70,7 +70,6 @@ static struct of_device_id mpc832x_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
-	{ .type = "mdio", },
 	{},
 };
 

arch/powerpc/platforms/83xx/mpc836x_mds.c

@@ -113,7 +113,6 @@ static struct of_device_id mpc836x_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
-	{ .type = "mdio", },
 	{},
 };
 

arch/powerpc/platforms/85xx/mpc85xx_mds.c

@@ -142,7 +142,6 @@ static struct of_device_id mpc85xx_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
-	{ .type = "mdio", },
 	{},
 };
 

arch/powerpc/platforms/cell/spu_base.c

@@ -36,7 +36,6 @@
 #include <asm/spu_priv1.h>
 #include <asm/xmon.h>
 #include <asm/prom.h>
-#include "spu_priv1_mmio.h"
 
 const struct spu_management_ops *spu_management_ops;
 EXPORT_SYMBOL_GPL(spu_management_ops);
@@ -636,138 +635,6 @@ static ssize_t spu_stat_show(struct sys_device *sysdev, char *buf)
 
 static SYSDEV_ATTR(stat, 0644, spu_stat_show, NULL);
 
-/* Hardcoded affinity idxs for QS20 */
-#define SPES_PER_BE 8
-static int QS20_reg_idxs[SPES_PER_BE] =   { 0, 2, 4, 6, 7, 5, 3, 1 };
-static int QS20_reg_memory[SPES_PER_BE] = { 1, 1, 0, 0, 0, 0, 0, 0 };
-
-static struct spu *spu_lookup_reg(int node, u32 reg)
-{
-	struct spu *spu;
-
-	list_for_each_entry(spu, &cbe_spu_info[node].spus, cbe_list) {
-		if (*(u32 *)get_property(spu_devnode(spu), "reg", NULL) == reg)
-			return spu;
-	}
-	return NULL;
-}
-
-static void init_aff_QS20_harcoded(void)
-{
-	int node, i;
-	struct spu *last_spu, *spu;
-	u32 reg;
-
-	for (node = 0; node < MAX_NUMNODES; node++) {
-		last_spu = NULL;
-		for (i = 0; i < SPES_PER_BE; i++) {
-			reg = QS20_reg_idxs[i];
-			spu = spu_lookup_reg(node, reg);
-			if (!spu)
-				continue;
-			spu->has_mem_affinity = QS20_reg_memory[reg];
-			if (last_spu)
-				list_add_tail(&spu->aff_list,
-						&last_spu->aff_list);
-			last_spu = spu;
-		}
-	}
-}
-
-static int of_has_vicinity(void)
-{
-	struct spu* spu;
-
-	spu = list_entry(cbe_spu_info[0].spus.next, struct spu, cbe_list);
-	return of_find_property(spu_devnode(spu), "vicinity", NULL) != NULL;
-}
-
-static struct spu *aff_devnode_spu(int cbe, struct device_node *dn)
-{
-	struct spu *spu;
-
-	list_for_each_entry(spu, &cbe_spu_info[cbe].spus, cbe_list)
-		if (spu_devnode(spu) == dn)
-			return spu;
-	return NULL;
-}
-
-static struct spu *
-aff_node_next_to(int cbe, struct device_node *target, struct device_node *avoid)
-{
-	struct spu *spu;
-	const phandle *vic_handles;
-	int lenp, i;
-
-	list_for_each_entry(spu, &cbe_spu_info[cbe].spus, cbe_list) {
-		if (spu_devnode(spu) == avoid)
-			continue;
-		vic_handles = get_property(spu_devnode(spu), "vicinity", &lenp);
-		for (i=0; i < (lenp / sizeof(phandle)); i++) {
-			if (vic_handles[i] == target->linux_phandle)
-				return spu;
-		}
-	}
-	return NULL;
-}
-
-static void init_aff_fw_vicinity_node(int cbe)
-{
-	struct spu *spu, *last_spu;
-	struct device_node *vic_dn, *last_spu_dn;
-	phandle avoid_ph;
-	const phandle *vic_handles;
-	const char *name;
-	int lenp, i, added, mem_aff;
-
-	last_spu = list_entry(cbe_spu_info[cbe].spus.next, struct spu, cbe_list);
-	avoid_ph = 0;
-	for (added = 1; added < cbe_spu_info[cbe].n_spus; added++) {
-		last_spu_dn = spu_devnode(last_spu);
-		vic_handles = get_property(last_spu_dn, "vicinity", &lenp);
-
-		for (i = 0; i < (lenp / sizeof(phandle)); i++) {
-			if (vic_handles[i] == avoid_ph)
-				continue;
-
-			vic_dn = of_find_node_by_phandle(vic_handles[i]);
-			if (!vic_dn)
-				continue;
-
-			name = get_property(vic_dn, "name", NULL);
-			if (strcmp(name, "spe") == 0) {
-				spu = aff_devnode_spu(cbe, vic_dn);
-				avoid_ph = last_spu_dn->linux_phandle;
-			}
-			else {
-				mem_aff = strcmp(name, "mic-tm") == 0;
-				spu = aff_node_next_to(cbe, vic_dn, last_spu_dn);
-				if (!spu)
-					continue;
-				if (mem_aff) {
-					last_spu->has_mem_affinity = 1;
-					spu->has_mem_affinity = 1;
-				}
-				avoid_ph = vic_dn->linux_phandle;
-			}
-			list_add_tail(&spu->aff_list, &last_spu->aff_list);
-			last_spu = spu;
-			break;
-		}
-	}
-}
-
-static void init_aff_fw_vicinity(void)
-{
-	int cbe;
-
-	/* sets has_mem_affinity for each spu, as long as the
-	 * spu->aff_list list, linking each spu to its neighbors
-	 */
-	for (cbe = 0; cbe < MAX_NUMNODES; cbe++)
-		init_aff_fw_vicinity_node(cbe);
-}
-
 static int __init init_spu_base(void)
 {
 	int i, ret = 0;
@@ -811,13 +678,7 @@ static int __init init_spu_base(void)
 	mutex_unlock(&spu_full_list_mutex);
 	spu_add_sysdev_attr(&attr_stat);
 
-	if (of_has_vicinity()) {
-		init_aff_fw_vicinity();
-	} else {
-		long root = of_get_flat_dt_root();
-		if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
-			init_aff_QS20_harcoded();
-	}
+	spu_init_affinity();
 
 	return 0;