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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:58:22 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:58:22 -0800
commite4e88f31bcb5f05f24b9ae518d4ecb44e1a7774d (patch)
tree9eef6998f5bbd1a2c999011d9e0151f00c6e7297 /arch/powerpc/platforms/powermac
parent9753dfe19a85e7e45a34a56f4cb2048bb4f50e27 (diff)
parentef88e3911c0e0301e73fa3b3b2567aabdbe17cc4 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits) powerpc: fix compile error with 85xx/p1010rdb.c powerpc: fix compile error with 85xx/p1023_rds.c powerpc/fsl: add MSI support for the Freescale hypervisor arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree powerpc/fsl: Add support for Integrated Flash Controller powerpc/fsl: update compatiable on fsl 16550 uart nodes powerpc/85xx: fix PCI and localbus properties in p1022ds.dts powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig powerpc/fsl: Update defconfigs to enable some standard FSL HW features powerpc: Add TBI PHY node to first MDIO bus sbc834x: put full compat string in board match check powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit offb: Fix setting of the pseudo-palette for >8bpp offb: Add palette hack for qemu "standard vga" framebuffer offb: Fix bug in calculating requested vram size powerpc/boot: Change the WARN to INFO for boot wrapper overlap message powerpc/44x: Fix build error on currituck platform powerpc/boot: Change the load address for the wrapper to fit the kernel powerpc/44x: Enable CRASH_DUMP for 440x ... Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to the additional sparse-checking code for cputime_t.
Diffstat (limited to 'arch/powerpc/platforms/powermac')
-rw-r--r--arch/powerpc/platforms/powermac/pic.c80
-rw-r--r--arch/powerpc/platforms/powermac/setup.c8
-rw-r--r--arch/powerpc/platforms/powermac/smp.c6
3 files changed, 22 insertions, 72 deletions
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 901bfbddc3d..7761aabfc29 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -52,13 +52,8 @@ struct device_node *of_irq_dflt_pic;
/* Default addresses */
static volatile struct pmac_irq_hw __iomem *pmac_irq_hw[4];
-#define GC_LEVEL_MASK 0x3ff00000
-#define OHARE_LEVEL_MASK 0x1ff00000
-#define HEATHROW_LEVEL_MASK 0x1ff00000
-
static int max_irqs;
static int max_real_irqs;
-static u32 level_mask[4];
static DEFINE_RAW_SPINLOCK(pmac_pic_lock);
@@ -217,8 +212,7 @@ static irqreturn_t gatwick_action(int cpl, void *dev_id)
for (irq = max_irqs; (irq -= 32) >= max_real_irqs; ) {
int i = irq >> 5;
bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i];
- /* We must read level interrupts from the level register */
- bits |= (in_le32(&pmac_irq_hw[i]->level) & level_mask[i]);
+ bits |= in_le32(&pmac_irq_hw[i]->level);
bits &= ppc_cached_irq_mask[i];
if (bits == 0)
continue;
@@ -248,8 +242,7 @@ static unsigned int pmac_pic_get_irq(void)
for (irq = max_real_irqs; (irq -= 32) >= 0; ) {
int i = irq >> 5;
bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i];
- /* We must read level interrupts from the level register */
- bits |= (in_le32(&pmac_irq_hw[i]->level) & level_mask[i]);
+ bits |= in_le32(&pmac_irq_hw[i]->level);
bits &= ppc_cached_irq_mask[i];
if (bits == 0)
continue;
@@ -284,19 +277,14 @@ static int pmac_pic_host_match(struct irq_host *h, struct device_node *node)
static int pmac_pic_host_map(struct irq_host *h, unsigned int virq,
irq_hw_number_t hw)
{
- int level;
-
if (hw >= max_irqs)
return -EINVAL;
/* Mark level interrupts, set delayed disable for edge ones and set
* handlers
*/
- level = !!(level_mask[hw >> 5] & (1UL << (hw & 0x1f)));
- if (level)
- irq_set_status_flags(virq, IRQ_LEVEL);
- irq_set_chip_and_handler(virq, &pmac_pic,
- level ? handle_level_irq : handle_edge_irq);
+ irq_set_status_flags(virq, IRQ_LEVEL);
+ irq_set_chip_and_handler(virq, &pmac_pic, handle_level_irq);
return 0;
}
@@ -334,21 +322,14 @@ static void __init pmac_pic_probe_oldstyle(void)
if ((master = of_find_node_by_name(NULL, "gc")) != NULL) {
max_irqs = max_real_irqs = 32;
- level_mask[0] = GC_LEVEL_MASK;
} else if ((master = of_find_node_by_name(NULL, "ohare")) != NULL) {
max_irqs = max_real_irqs = 32;
- level_mask[0] = OHARE_LEVEL_MASK;
-
/* We might have a second cascaded ohare */
slave = of_find_node_by_name(NULL, "pci106b,7");
- if (slave) {
+ if (slave)
max_irqs = 64;
- level_mask[1] = OHARE_LEVEL_MASK;
- }
} else if ((master = of_find_node_by_name(NULL, "mac-io")) != NULL) {
max_irqs = max_real_irqs = 64;
- level_mask[0] = HEATHROW_LEVEL_MASK;
- level_mask[1] = 0;
/* We might have a second cascaded heathrow */
slave = of_find_node_by_name(master, "mac-io");
@@ -363,11 +344,8 @@ static void __init pmac_pic_probe_oldstyle(void)
}
/* We found a slave */
- if (slave) {
+ if (slave)
max_irqs = 128;
- level_mask[2] = HEATHROW_LEVEL_MASK;
- level_mask[3] = 0;
- }
}
BUG_ON(master == NULL);
@@ -464,18 +442,6 @@ int of_irq_map_oldworld(struct device_node *device, int index,
}
#endif /* CONFIG_PPC32 */
-static void pmac_u3_cascade(unsigned int irq, struct irq_desc *desc)
-{
- struct irq_chip *chip = irq_desc_get_chip(desc);
- struct mpic *mpic = irq_desc_get_handler_data(desc);
- unsigned int cascade_irq = mpic_get_one_irq(mpic);
-
- if (cascade_irq != NO_IRQ)
- generic_handle_irq(cascade_irq);
-
- chip->irq_eoi(&desc->irq_data);
-}
-
static void __init pmac_pic_setup_mpic_nmi(struct mpic *mpic)
{
#if defined(CONFIG_XMON) && defined(CONFIG_PPC32)
@@ -498,14 +464,8 @@ static struct mpic * __init pmac_setup_one_mpic(struct device_node *np,
int master)
{
const char *name = master ? " MPIC 1 " : " MPIC 2 ";
- struct resource r;
struct mpic *mpic;
- unsigned int flags = master ? MPIC_PRIMARY : 0;
- int rc;
-
- rc = of_address_to_resource(np, 0, &r);
- if (rc)
- return NULL;
+ unsigned int flags = master ? 0 : MPIC_SECONDARY;
pmac_call_feature(PMAC_FTR_ENABLE_MPIC, np, 0, 0);
@@ -519,7 +479,7 @@ static struct mpic * __init pmac_setup_one_mpic(struct device_node *np,
if (master && (flags & MPIC_BIG_ENDIAN))
flags |= MPIC_U3_HT_IRQS;
- mpic = mpic_alloc(np, r.start, flags, 0, 0, name);
+ mpic = mpic_alloc(np, 0, flags, 0, 0, name);
if (mpic == NULL)
return NULL;
@@ -532,7 +492,6 @@ static int __init pmac_pic_probe_mpic(void)
{
struct mpic *mpic1, *mpic2;
struct device_node *np, *master = NULL, *slave = NULL;
- unsigned int cascade;
/* We can have up to 2 MPICs cascaded */
for (np = NULL; (np = of_find_node_by_type(np, "open-pic"))
@@ -568,27 +527,14 @@ static int __init pmac_pic_probe_mpic(void)
of_node_put(master);
- /* No slave, let's go out */
- if (slave == NULL)
- return 0;
-
- /* Get/Map slave interrupt */
- cascade = irq_of_parse_and_map(slave, 0);
- if (cascade == NO_IRQ) {
- printk(KERN_ERR "Failed to map cascade IRQ\n");
- return 0;
- }
-
- mpic2 = pmac_setup_one_mpic(slave, 0);
- if (mpic2 == NULL) {
- printk(KERN_ERR "Failed to setup slave MPIC\n");
+ /* Set up a cascaded controller, if present */
+ if (slave) {
+ mpic2 = pmac_setup_one_mpic(slave, 0);
+ if (mpic2 == NULL)
+ printk(KERN_ERR "Failed to setup slave MPIC\n");
of_node_put(slave);
- return 0;
}
- irq_set_handler_data(cascade, mpic2);
- irq_set_chained_handler(cascade, pmac_u3_cascade);
- of_node_put(slave);
return 0;
}
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 96580b189ec..970ea1de429 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -494,11 +494,15 @@ static int __init pmac_declare_of_platform_devices(void)
return -1;
np = of_find_node_by_name(NULL, "valkyrie");
- if (np)
+ if (np) {
of_platform_device_create(np, "valkyrie", NULL);
+ of_node_put(np);
+ }
np = of_find_node_by_name(NULL, "platinum");
- if (np)
+ if (np) {
of_platform_device_create(np, "platinum", NULL);
+ of_node_put(np);
+ }
np = of_find_node_by_type(NULL, "smu");
if (np) {
of_platform_device_create(np, "smu", NULL);
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 9b6a820bdd7..44d769258eb 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -200,7 +200,7 @@ static int psurge_secondary_ipi_init(void)
if (psurge_secondary_virq)
rc = request_irq(psurge_secondary_virq, psurge_ipi_intr,
- IRQF_PERCPU, "IPI", NULL);
+ IRQF_PERCPU | IRQF_NO_THREAD, "IPI", NULL);
if (rc)
pr_err("Failed to setup secondary cpu IPI\n");
@@ -408,13 +408,13 @@ static int __init smp_psurge_kick_cpu(int nr)
static struct irqaction psurge_irqaction = {
.handler = psurge_ipi_intr,
- .flags = IRQF_PERCPU,
+ .flags = IRQF_PERCPU | IRQF_NO_THREAD,
.name = "primary IPI",
};
static void __init smp_psurge_setup_cpu(int cpu_nr)
{
- if (cpu_nr != 0)
+ if (cpu_nr != 0 || !psurge_start)
return;
/* reset the entry point so if we get another intr we won't