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-rw-r--r--arch/powerpc/kernel/head_8xx.S12
-rw-r--r--arch/powerpc/kernel/pci_of_scan.c10
-rw-r--r--arch/powerpc/kernel/process.c12
-rw-r--r--arch/powerpc/kernel/rtas-proc.c14
-rw-r--r--arch/powerpc/kernel/smp.c12
-rw-r--r--arch/powerpc/kernel/swsusp_32.S2
-rw-r--r--arch/powerpc/kernel/time.c11
7 files changed, 46 insertions, 27 deletions
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 678f98cd5e6..3ef743fa5d7 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -542,11 +542,11 @@ DARFixed:/* Return from dcbx instruction bug workaround, r10 holds value of DAR
FixupDAR:/* Entry point for dcbx workaround. */
/* fetch instruction from memory. */
mfspr r10, SPRN_SRR0
+ andis. r11, r10, 0x8000 /* Address >= 0x80000000 */
DO_8xx_CPU6(0x3780, r3)
mtspr SPRN_MD_EPN, r10
mfspr r11, SPRN_M_TWB /* Get level 1 table entry address */
- cmplwi cr0, r11, 0x0800
- blt- 3f /* Branch if user space */
+ beq- 3f /* Branch if user space */
lis r11, (swapper_pg_dir-PAGE_OFFSET)@h
ori r11, r11, (swapper_pg_dir-PAGE_OFFSET)@l
rlwimi r11, r10, 32-20, 0xffc /* r11 = r11&~0xffc|(r10>>20)&0xffc */
@@ -768,12 +768,12 @@ start_here:
*/
initial_mmu:
tlbia /* Invalidate all TLB entries */
-#ifdef CONFIG_PIN_TLB
+/* Always pin the first 8 MB ITLB to prevent ITLB
+ misses while mucking around with SRR0/SRR1 in asm
+*/
lis r8, MI_RSV4I@h
ori r8, r8, 0x1c00
-#else
- li r8, 0
-#endif
+
mtspr SPRN_MI_CTR, r8 /* Set instruction MMU control */
#ifdef CONFIG_PIN_TLB
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index 7311fdfb9bf..4aa17401657 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -123,6 +123,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
{
struct pci_dev *dev;
const char *type;
+ struct pci_slot *slot;
dev = alloc_pci_dev();
if (!dev)
@@ -140,6 +141,11 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
dev->devfn = devfn;
dev->multifunction = 0; /* maybe a lie? */
dev->needs_freset = 0; /* pcie fundamental reset required */
+ set_pcie_port_type(dev);
+
+ list_for_each_entry(slot, &dev->bus->slots, list)
+ if (PCI_SLOT(dev->devfn) == slot->number)
+ dev->slot = slot;
dev->vendor = get_int_prop(node, "vendor-id", 0xffff);
dev->device = get_int_prop(node, "device-id", 0xffff);
@@ -160,10 +166,14 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
dev->error_state = pci_channel_io_normal;
dev->dma_mask = 0xffffffff;
+ /* Early fixups, before probing the BARs */
+ pci_fixup_device(pci_fixup_early, dev);
+
if (!strcmp(type, "pci") || !strcmp(type, "pciex")) {
/* a PCI-PCI bridge */
dev->hdr_type = PCI_HEADER_TYPE_BRIDGE;
dev->rom_base_reg = PCI_ROM_ADDRESS1;
+ set_pcie_hotplug_bridge(dev);
} else if (!strcmp(type, "cardbus")) {
dev->hdr_type = PCI_HEADER_TYPE_CARDBUS;
} else {
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index c930ac38e59..7b816daf3eb 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -554,18 +554,6 @@ void exit_thread(void)
void flush_thread(void)
{
-#ifdef CONFIG_PPC64
- struct thread_info *t = current_thread_info();
-
- if (test_ti_thread_flag(t, TIF_ABI_PENDING)) {
- clear_ti_thread_flag(t, TIF_ABI_PENDING);
- if (test_ti_thread_flag(t, TIF_32BIT))
- clear_ti_thread_flag(t, TIF_32BIT);
- else
- set_ti_thread_flag(t, TIF_32BIT);
- }
-#endif
-
discard_lazy_cpu_state();
if (current->thread.dabr) {
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 1be9fe38bcb..8777fb02349 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -262,19 +262,19 @@ static int __init proc_rtas_init(void)
if (rtas_node == NULL)
return -ENODEV;
- proc_create("ppc64/rtas/progress", S_IRUGO|S_IWUSR, NULL,
+ proc_create("powerpc/rtas/progress", S_IRUGO|S_IWUSR, NULL,
&ppc_rtas_progress_operations);
- proc_create("ppc64/rtas/clock", S_IRUGO|S_IWUSR, NULL,
+ proc_create("powerpc/rtas/clock", S_IRUGO|S_IWUSR, NULL,
&ppc_rtas_clock_operations);
- proc_create("ppc64/rtas/poweron", S_IWUSR|S_IRUGO, NULL,
+ proc_create("powerpc/rtas/poweron", S_IWUSR|S_IRUGO, NULL,
&ppc_rtas_poweron_operations);
- proc_create("ppc64/rtas/sensors", S_IRUGO, NULL,
+ proc_create("powerpc/rtas/sensors", S_IRUGO, NULL,
&ppc_rtas_sensors_operations);
- proc_create("ppc64/rtas/frequency", S_IWUSR|S_IRUGO, NULL,
+ proc_create("powerpc/rtas/frequency", S_IWUSR|S_IRUGO, NULL,
&ppc_rtas_tone_freq_operations);
- proc_create("ppc64/rtas/volume", S_IWUSR|S_IRUGO, NULL,
+ proc_create("powerpc/rtas/volume", S_IWUSR|S_IRUGO, NULL,
&ppc_rtas_tone_volume_operations);
- proc_create("ppc64/rtas/rmo_buffer", S_IRUSR, NULL,
+ proc_create("powerpc/rtas/rmo_buffer", S_IRUSR, NULL,
&ppc_rtas_rmo_buf_ops);
return 0;
}
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index a521fb8a40e..c2ee1449807 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -619,4 +619,16 @@ void __cpu_die(unsigned int cpu)
if (smp_ops->cpu_die)
smp_ops->cpu_die(cpu);
}
+
+static DEFINE_MUTEX(powerpc_cpu_hotplug_driver_mutex);
+
+void cpu_hotplug_driver_lock()
+{
+ mutex_lock(&powerpc_cpu_hotplug_driver_mutex);
+}
+
+void cpu_hotplug_driver_unlock()
+{
+ mutex_unlock(&powerpc_cpu_hotplug_driver_mutex);
+}
#endif
diff --git a/arch/powerpc/kernel/swsusp_32.S b/arch/powerpc/kernel/swsusp_32.S
index b47d8ceffb5..b0754e23743 100644
--- a/arch/powerpc/kernel/swsusp_32.S
+++ b/arch/powerpc/kernel/swsusp_32.S
@@ -303,7 +303,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
lis r4,0x1000
1: addic. r4,r4,-0x1000
tlbie r4
- blt 1b
+ bgt 1b
sync
/* restore the MSR and turn on the MMU */
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 9ba2cc88591..6c6093d67f3 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -903,12 +903,21 @@ static void decrementer_set_mode(enum clock_event_mode mode,
decrementer_set_next_event(DECREMENTER_MAX, dev);
}
+static inline uint64_t div_sc64(unsigned long ticks, unsigned long nsec,
+ int shift)
+{
+ uint64_t tmp = ((uint64_t)ticks) << shift;
+
+ do_div(tmp, nsec);
+ return tmp;
+}
+
static void __init setup_clockevent_multiplier(unsigned long hz)
{
u64 mult, shift = 32;
while (1) {
- mult = div_sc(hz, NSEC_PER_SEC, shift);
+ mult = div_sc64(hz, NSEC_PER_SEC, shift);
if (mult && (mult >> 32UL) == 0UL)
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 13:25:38 +0000