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-rw-r--r--arch/mips/cavium-octeon/csrc-octeon.c11
-rw-r--r--arch/mips/cavium-octeon/dma-octeon.c4
-rw-r--r--arch/mips/cavium-octeon/executive/cvmx-helper-board.c2
-rw-r--r--arch/mips/cavium-octeon/octeon-irq.c1094
-rw-r--r--arch/mips/cavium-octeon/setup.c56
5 files changed, 885 insertions, 282 deletions
diff --git a/arch/mips/cavium-octeon/csrc-octeon.c b/arch/mips/cavium-octeon/csrc-octeon.c
index b752c4ed0b79..1882e6475dd0 100644
--- a/arch/mips/cavium-octeon/csrc-octeon.c
+++ b/arch/mips/cavium-octeon/csrc-octeon.c
@@ -18,7 +18,7 @@
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-ipd-defs.h>
#include <asm/octeon/cvmx-mio-defs.h>
-
+#include <asm/octeon/cvmx-rst-defs.h>
static u64 f;
static u64 rdiv;
@@ -39,11 +39,20 @@ void __init octeon_setup_delays(void)
if (current_cpu_type() == CPU_CAVIUM_OCTEON2) {
union cvmx_mio_rst_boot rst_boot;
+
rst_boot.u64 = cvmx_read_csr(CVMX_MIO_RST_BOOT);
rdiv = rst_boot.s.c_mul; /* CPU clock */
sdiv = rst_boot.s.pnr_mul; /* I/O clock */
f = (0x8000000000000000ull / sdiv) * 2;
+ } else if (current_cpu_type() == CPU_CAVIUM_OCTEON3) {
+ union cvmx_rst_boot rst_boot;
+
+ rst_boot.u64 = cvmx_read_csr(CVMX_RST_BOOT);
+ rdiv = rst_boot.s.c_mul; /* CPU clock */
+ sdiv = rst_boot.s.pnr_mul; /* I/O clock */
+ f = (0x8000000000000000ull / sdiv) * 2;
}
+
}
/*
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index 3778655c4a37..7d8987818ccf 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -276,7 +276,7 @@ void __init plat_swiotlb_setup(void)
continue;
/* These addresses map low for PCI. */
- if (e->addr > 0x410000000ull && !OCTEON_IS_MODEL(OCTEON_CN6XXX))
+ if (e->addr > 0x410000000ull && !OCTEON_IS_OCTEON2())
continue;
addr_size += e->size;
@@ -308,7 +308,7 @@ void __init plat_swiotlb_setup(void)
#endif
#ifdef CONFIG_USB_OCTEON_OHCI
/* OCTEON II ohci is only 32-bit. */
- if (OCTEON_IS_MODEL(OCTEON_CN6XXX) && max_addr >= 0x100000000ul)
+ if (OCTEON_IS_OCTEON2() && max_addr >= 0x100000000ul)
swiotlbsize = 64 * (1<<20);
#endif
swiotlb_nslabs = swiotlbsize >> IO_TLB_SHIFT;
diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-board.c b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c
index 5dfef84b9576..9eb0feef4417 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-helper-board.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c
@@ -767,7 +767,7 @@ enum cvmx_helper_board_usb_clock_types __cvmx_helper_board_usb_get_clock_type(vo
break;
}
/* Most boards except NIC10e use a 12MHz crystal */
- if (OCTEON_IS_MODEL(OCTEON_FAM_2))
+ if (OCTEON_IS_OCTEON2())
return USB_CLOCK_TYPE_CRYSTAL_12;
return USB_CLOCK_TYPE_REF_48;
}
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 2bc4aa95944e..10f762557b92 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -3,12 +3,14 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2004-2012 Cavium, Inc.
+ * Copyright (C) 2004-2014 Cavium, Inc.
*/
+#include <linux/of_address.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/bitops.h>
+#include <linux/of_irq.h>
#include <linux/percpu.h>
#include <linux/slab.h>
#include <linux/irq.h>
@@ -22,16 +24,25 @@ static DEFINE_PER_CPU(unsigned long, octeon_irq_ciu0_en_mirror);
static DEFINE_PER_CPU(unsigned long, octeon_irq_ciu1_en_mirror);
static DEFINE_PER_CPU(raw_spinlock_t, octeon_irq_ciu_spinlock);
+struct octeon_irq_ciu_domain_data {
+ int num_sum; /* number of sum registers (2 or 3). */
+};
+
static __read_mostly u8 octeon_irq_ciu_to_irq[8][64];
-union octeon_ciu_chip_data {
- void *p;
- unsigned long l;
- struct {
- unsigned long line:6;
- unsigned long bit:6;
- unsigned long gpio_line:6;
- } s;
+struct octeon_ciu_chip_data {
+ union {
+ struct { /* only used for ciu3 */
+ u64 ciu3_addr;
+ unsigned int intsn;
+ };
+ struct { /* only used for ciu/ciu2 */
+ u8 line;
+ u8 bit;
+ u8 gpio_line;
+ };
+ };
+ int current_cpu; /* Next CPU expected to take this irq */
};
struct octeon_core_chip_data {
@@ -45,27 +56,40 @@ struct octeon_core_chip_data {
static struct octeon_core_chip_data octeon_irq_core_chip_data[MIPS_CORE_IRQ_LINES];
-static void octeon_irq_set_ciu_mapping(int irq, int line, int bit, int gpio_line,
- struct irq_chip *chip,
- irq_flow_handler_t handler)
+static int octeon_irq_set_ciu_mapping(int irq, int line, int bit, int gpio_line,
+ struct irq_chip *chip,
+ irq_flow_handler_t handler)
{
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
+
+ cd = kzalloc(sizeof(*cd), GFP_KERNEL);
+ if (!cd)
+ return -ENOMEM;
irq_set_chip_and_handler(irq, chip, handler);
- cd.l = 0;
- cd.s.line = line;
- cd.s.bit = bit;
- cd.s.gpio_line = gpio_line;
+ cd->line = line;
+ cd->bit = bit;
+ cd->gpio_line = gpio_line;
- irq_set_chip_data(irq, cd.p);
+ irq_set_chip_data(irq, cd);
octeon_irq_ciu_to_irq[line][bit] = irq;
+ return 0;
}
-static void octeon_irq_force_ciu_mapping(struct irq_domain *domain,
- int irq, int line, int bit)
+static void octeon_irq_free_cd(struct irq_domain *d, unsigned int irq)
{
- irq_domain_associate(domain, irq, line << 6 | bit);
+ struct irq_data *data = irq_get_irq_data(irq);
+ struct octeon_ciu_chip_data *cd = irq_data_get_irq_chip_data(data);
+
+ irq_set_chip_data(irq, NULL);
+ kfree(cd);
+}
+
+static int octeon_irq_force_ciu_mapping(struct irq_domain *domain,
+ int irq, int line, int bit)
+{
+ return irq_domain_associate(domain, irq, line << 6 | bit);
}
static int octeon_coreid_for_cpu(int cpu)
@@ -202,9 +226,10 @@ static int next_cpu_for_irq(struct irq_data *data)
#ifdef CONFIG_SMP
int cpu;
int weight = cpumask_weight(data->affinity);
+ struct octeon_ciu_chip_data *cd = irq_data_get_irq_chip_data(data);
if (weight > 1) {
- cpu = smp_processor_id();
+ cpu = cd->current_cpu;
for (;;) {
cpu = cpumask_next(cpu, data->affinity);
if (cpu >= nr_cpu_ids) {
@@ -219,6 +244,7 @@ static int next_cpu_for_irq(struct irq_data *data)
} else {
cpu = smp_processor_id();
}
+ cd->current_cpu = cpu;
return cpu;
#else
return smp_processor_id();
@@ -231,15 +257,15 @@ static void octeon_irq_ciu_enable(struct irq_data *data)
int coreid = octeon_coreid_for_cpu(cpu);
unsigned long *pen;
unsigned long flags;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
raw_spinlock_t *lock = &per_cpu(octeon_irq_ciu_spinlock, cpu);
- cd.p = irq_data_get_irq_chip_data(data);
+ cd = irq_data_get_irq_chip_data(data);
raw_spin_lock_irqsave(lock, flags);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
- __set_bit(cd.s.bit, pen);
+ __set_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
@@ -248,7 +274,7 @@ static void octeon_irq_ciu_enable(struct irq_data *data)
cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
} else {
pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
- __set_bit(cd.s.bit, pen);
+ __set_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
@@ -263,15 +289,15 @@ static void octeon_irq_ciu_enable_local(struct irq_data *data)
{
unsigned long *pen;
unsigned long flags;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
raw_spinlock_t *lock = this_cpu_ptr(&octeon_irq_ciu_spinlock);
- cd.p = irq_data_get_irq_chip_data(data);
+ cd = irq_data_get_irq_chip_data(data);
raw_spin_lock_irqsave(lock, flags);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
pen = this_cpu_ptr(&octeon_irq_ciu0_en_mirror);
- __set_bit(cd.s.bit, pen);
+ __set_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
@@ -280,7 +306,7 @@ static void octeon_irq_ciu_enable_local(struct irq_data *data)
cvmx_write_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num() * 2), *pen);
} else {
pen = this_cpu_ptr(&octeon_irq_ciu1_en_mirror);
- __set_bit(cd.s.bit, pen);
+ __set_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
@@ -295,15 +321,15 @@ static void octeon_irq_ciu_disable_local(struct irq_data *data)
{
unsigned long *pen;
unsigned long flags;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
raw_spinlock_t *lock = this_cpu_ptr(&octeon_irq_ciu_spinlock);
- cd.p = irq_data_get_irq_chip_data(data);
+ cd = irq_data_get_irq_chip_data(data);
raw_spin_lock_irqsave(lock, flags);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
pen = this_cpu_ptr(&octeon_irq_ciu0_en_mirror);
- __clear_bit(cd.s.bit, pen);
+ __clear_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
@@ -312,7 +338,7 @@ static void octeon_irq_ciu_disable_local(struct irq_data *data)
cvmx_write_csr(CVMX_CIU_INTX_EN0(cvmx_get_core_num() * 2), *pen);
} else {
pen = this_cpu_ptr(&octeon_irq_ciu1_en_mirror);
- __clear_bit(cd.s.bit, pen);
+ __clear_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
@@ -328,27 +354,27 @@ static void octeon_irq_ciu_disable_all(struct irq_data *data)
unsigned long flags;
unsigned long *pen;
int cpu;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
raw_spinlock_t *lock;
- cd.p = irq_data_get_irq_chip_data(data);
+ cd = irq_data_get_irq_chip_data(data);
for_each_online_cpu(cpu) {
int coreid = octeon_coreid_for_cpu(cpu);
lock = &per_cpu(octeon_irq_ciu_spinlock, cpu);
- if (cd.s.line == 0)
+ if (cd->line == 0)
pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
else
pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
raw_spin_lock_irqsave(lock, flags);
- __clear_bit(cd.s.bit, pen);
+ __clear_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
*/
wmb();
- if (cd.s.line == 0)
+ if (cd->line == 0)
cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
else
cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
@@ -361,27 +387,27 @@ static void octeon_irq_ciu_enable_all(struct irq_data *data)
unsigned long flags;
unsigned long *pen;
int cpu;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
raw_spinlock_t *lock;
- cd.p = irq_data_get_irq_chip_data(data);
+ cd = irq_data_get_irq_chip_data(data);
for_each_online_cpu(cpu) {
int coreid = octeon_coreid_for_cpu(cpu);
lock = &per_cpu(octeon_irq_ciu_spinlock, cpu);
- if (cd.s.line == 0)
+ if (cd->line == 0)
pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
else
pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
raw_spin_lock_irqsave(lock, flags);
- __set_bit(cd.s.bit, pen);
+ __set_bit(cd->bit, pen);
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
* enabling the irq.
*/
wmb();
- if (cd.s.line == 0)
+ if (cd->line == 0)
cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
else
cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
@@ -397,45 +423,106 @@ static void octeon_irq_ciu_enable_v2(struct irq_data *data)
{
u64 mask;
int cpu = next_cpu_for_irq(data);
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
/*
* Called under the desc lock, so these should never get out
* of sync.
*/
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
int index = octeon_coreid_for_cpu(cpu) * 2;
- set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
+ set_bit(cd->bit, &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
} else {
int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
- set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
+ set_bit(cd->bit, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
}
}
/*
+ * Enable the irq in the sum2 registers.
+ */
+static void octeon_irq_ciu_enable_sum2(struct irq_data *data)
+{
+ u64 mask;
+ int cpu = next_cpu_for_irq(data);
+ int index = octeon_coreid_for_cpu(cpu);
+ struct octeon_ciu_chip_data *cd;
+
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
+
+ cvmx_write_csr(CVMX_CIU_EN2_PPX_IP4_W1S(index), mask);
+}
+
+/*
+ * Disable the irq in the sum2 registers.
+ */
+static void octeon_irq_ciu_disable_local_sum2(struct irq_data *data)
+{
+ u64 mask;
+ int cpu = next_cpu_for_irq(data);
+ int index = octeon_coreid_for_cpu(cpu);
+ struct octeon_ciu_chip_data *cd;
+
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
+
+ cvmx_write_csr(CVMX_CIU_EN2_PPX_IP4_W1C(index), mask);
+}
+
+static void octeon_irq_ciu_ack_sum2(struct irq_data *data)
+{
+ u64 mask;
+ int cpu = next_cpu_for_irq(data);
+ int index = octeon_coreid_for_cpu(cpu);
+ struct octeon_ciu_chip_data *cd;
+
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
+
+ cvmx_write_csr(CVMX_CIU_SUM2_PPX_IP4(index), mask);
+}
+
+static void octeon_irq_ciu_disable_all_sum2(struct irq_data *data)
+{
+ int cpu;
+ struct octeon_ciu_chip_data *cd;
+ u64 mask;
+
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
+
+ for_each_online_cpu(cpu) {
+ int coreid = octeon_coreid_for_cpu(cpu);
+
+ cvmx_write_csr(CVMX_CIU_EN2_PPX_IP4_W1C(coreid), mask);
+ }
+}
+
+/*
* Enable the irq on the current CPU for chips that
* have the EN*_W1{S,C} registers.
*/
static void octeon_irq_ciu_enable_local_v2(struct irq_data *data)
{
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
int index = cvmx_get_core_num() * 2;
- set_bit(cd.s.bit, this_cpu_ptr(&octeon_irq_ciu0_en_mirror));
+ set_bit(cd->bit, this_cpu_ptr(&octeon_irq_ciu0_en_mirror));
cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
} else {
int index = cvmx_get_core_num() * 2 + 1;
- set_bit(cd.s.bit, this_cpu_ptr(&octeon_irq_ciu1_en_mirror));
+ set_bit(cd->bit, this_cpu_ptr(&octeon_irq_ciu1_en_mirror));
cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
}
}
@@ -443,18 +530,18 @@ static void octeon_irq_ciu_enable_local_v2(struct irq_data *data)
static void octeon_irq_ciu_disable_local_v2(struct irq_data *data)
{
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
int index = cvmx_get_core_num() * 2;
- clear_bit(cd.s.bit, this_cpu_ptr(&octeon_irq_ciu0_en_mirror));
+ clear_bit(cd->bit, this_cpu_ptr(&octeon_irq_ciu0_en_mirror));
cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
} else {
int index = cvmx_get_core_num() * 2 + 1;
- clear_bit(cd.s.bit, this_cpu_ptr(&octeon_irq_ciu1_en_mirror));
+ clear_bit(cd->bit, this_cpu_ptr(&octeon_irq_ciu1_en_mirror));
cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
}
}
@@ -465,12 +552,12 @@ static void octeon_irq_ciu_disable_local_v2(struct irq_data *data)
static void octeon_irq_ciu_ack(struct irq_data *data)
{
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
int index = cvmx_get_core_num() * 2;
cvmx_write_csr(CVMX_CIU_INTX_SUM0(index), mask);
} else {
@@ -486,21 +573,23 @@ static void octeon_irq_ciu_disable_all_v2(struct irq_data *data)
{
int cpu;
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
for_each_online_cpu(cpu) {
int index = octeon_coreid_for_cpu(cpu) * 2;
- clear_bit(cd.s.bit, &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
+ clear_bit(cd->bit,
+ &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
}
} else {
for_each_online_cpu(cpu) {
int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
- clear_bit(cd.s.bit, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
+ clear_bit(cd->bit,
+ &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
}
}
@@ -514,21 +603,23 @@ static void octeon_irq_ciu_enable_all_v2(struct irq_data *data)
{
int cpu;
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
for_each_online_cpu(cpu) {
int index = octeon_coreid_for_cpu(cpu) * 2;
- set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
+ set_bit(cd->bit,
+ &per_cpu(octeon_irq_ciu0_en_mirror, cpu));
cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
}
} else {
for_each_online_cpu(cpu) {
int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
- set_bit(cd.s.bit, &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
+ set_bit(cd->bit,
+ &per_cpu(octeon_irq_ciu1_en_mirror, cpu));
cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
}
}
@@ -537,10 +628,10 @@ static void octeon_irq_ciu_enable_all_v2(struct irq_data *data)
static void octeon_irq_gpio_setup(struct irq_data *data)
{
union cvmx_gpio_bit_cfgx cfg;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
u32 t = irqd_get_trigger_type(data);
- cd.p = irq_data_get_irq_chip_data(data);
+ cd = irq_data_get_irq_chip_data(data);
cfg.u64 = 0;
cfg.s.int_en = 1;
@@ -551,7 +642,7 @@ static void octeon_irq_gpio_setup(struct irq_data *data)
cfg.s.fil_cnt = 7;
cfg.s.fil_sel = 3;
- cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd.s.gpio_line), cfg.u64);
+ cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd->gpio_line), cfg.u64);
}
static void octeon_irq_ciu_enable_gpio_v2(struct irq_data *data)
@@ -576,36 +667,36 @@ static int octeon_irq_ciu_gpio_set_type(struct irq_data *data, unsigned int t)
static void octeon_irq_ciu_disable_gpio_v2(struct irq_data *data)
{
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd.s.gpio_line), 0);
+ cd = irq_data_get_irq_chip_data(data);
+ cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd->gpio_line), 0);
octeon_irq_ciu_disable_all_v2(data);
}
static void octeon_irq_ciu_disable_gpio(struct irq_data *data)
{
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd.s.gpio_line), 0);
+ cd = irq_data_get_irq_chip_data(data);
+ cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd->gpio_line), 0);
octeon_irq_ciu_disable_all(data);
}
static void octeon_irq_ciu_gpio_ack(struct irq_data *data)
{
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
u64 mask;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.gpio_line);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->gpio_line);
cvmx_write_csr(CVMX_GPIO_INT_CLR, mask);
}
-static void octeon_irq_handle_gpio(unsigned int irq, struct irq_desc *desc)
+static void octeon_irq_handle_trigger(unsigned int irq, struct irq_desc *desc)
{
if (irq_get_trigger_type(irq) & IRQ_TYPE_EDGE_BOTH)
handle_edge_irq(irq, desc);
@@ -644,11 +735,11 @@ static int octeon_irq_ciu_set_affinity(struct irq_data *data,
int cpu;
bool enable_one = !irqd_irq_disabled(data) && !irqd_irq_masked(data);
unsigned long flags;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
unsigned long *pen;
raw_spinlock_t *lock;
- cd.p = irq_data_get_irq_chip_data(data);
+ cd = irq_data_get_irq_chip_data(data);
/*
* For non-v2 CIU, we will allow only single CPU affinity.
@@ -668,16 +759,16 @@ static int octeon_irq_ciu_set_affinity(struct irq_data *data,
lock = &per_cpu(octeon_irq_ciu_spinlock, cpu);
raw_spin_lock_irqsave(lock, flags);
- if (cd.s.line == 0)
+ if (cd->line == 0)
pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
else
pen = &per_cpu(octeon_irq_ciu1_en_mirror, cpu);
if (cpumask_test_cpu(cpu, dest) && enable_one) {
enable_one = 0;
- __set_bit(cd.s.bit, pen);
+ __set_bit(cd->bit, pen);
} else {
- __clear_bit(cd.s.bit, pen);
+ __clear_bit(cd->bit, pen);
}
/*
* Must be visible to octeon_irq_ip{2,3}_ciu() before
@@ -685,7 +776,7 @@ static int octeon_irq_ciu_set_affinity(struct irq_data *data,
*/
wmb();
- if (cd.s.line == 0)
+ if (cd->line == 0)
cvmx_write_csr(CVMX_CIU_INTX_EN0(coreid * 2), *pen);
else
cvmx_write_csr(CVMX_CIU_INTX_EN1(coreid * 2 + 1), *pen);
@@ -706,24 +797,24 @@ static int octeon_irq_ciu_set_affinity_v2(struct irq_data *data,
int cpu;
bool enable_one = !irqd_irq_disabled(data) && !irqd_irq_masked(data);
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
if (!enable_one)
return 0;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << cd.s.bit;
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << cd->bit;
- if (cd.s.line == 0) {
+ if (cd->line == 0) {
for_each_online_cpu(cpu) {
unsigned long *pen = &per_cpu(octeon_irq_ciu0_en_mirror, cpu);
int index = octeon_coreid_for_cpu(cpu) * 2;
if (cpumask_test_cpu(cpu, dest) && enable_one) {
enable_one = false;
- set_bit(cd.s.bit, pen);
+ set_bit(cd->bit, pen);
cvmx_write_csr(CVMX_CIU_INTX_EN0_W1S(index), mask);
} else {
- clear_bit(cd.s.bit, pen);
+ clear_bit(cd->bit, pen);
cvmx_write_csr(CVMX_CIU_INTX_EN0_W1C(index), mask);
}
}
@@ -733,16 +824,44 @@ static int octeon_irq_ciu_set_affinity_v2(struct irq_data *data,
int index = octeon_coreid_for_cpu(cpu) * 2 + 1;
if (cpumask_test_cpu(cpu, dest) && enable_one) {
enable_one = false;
- set_bit(cd.s.bit, pen);
+ set_bit(cd->bit, pen);
cvmx_write_csr(CVMX_CIU_INTX_EN1_W1S(index), mask);
} else {
- clear_bit(cd.s.bit, pen);
+ clear_bit(cd->bit, pen);
cvmx_write_csr(CVMX_CIU_INTX_EN1_W1C(index), mask);
}
}
}
return 0;
}
+
+static int octeon_irq_ciu_set_affinity_sum2(struct irq_data *data,
+ const struct cpumask *dest,
+ bool force)
+{
+ int cpu;
+ bool enable_one = !irqd_irq_disabled(data) && !irqd_irq_masked(data);
+ u64 mask;
+ struct octeon_ciu_chip_data *cd;
+
+ if (!enable_one)
+ return 0;
+
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << cd->bit;
+
+ for_each_online_cpu(cpu) {
+ int index = octeon_coreid_for_cpu(cpu);
+
+ if (cpumask_test_cpu(cpu, dest) && enable_one) {
+ enable_one = false;
+ cvmx_write_csr(CVMX_CIU_EN2_PPX_IP4_W1S(index), mask);
+ } else {
+ cvmx_write_csr(CVMX_CIU_EN2_PPX_IP4_W1C(index), mask);
+ }
+ }
+ return 0;
+}
#endif
/*
@@ -752,6 +871,18 @@ static struct irq_chip octeon_irq_chip_ciu_v2 = {
.name = "CIU",
.irq_enable = octeon_irq_ciu_enable_v2,
.irq_disable = octeon_irq_ciu_disable_all_v2,
+ .irq_mask = octeon_irq_ciu_disable_local_v2,
+ .irq_unmask = octeon_irq_ciu_enable_v2,
+#ifdef CONFIG_SMP
+ .irq_set_affinity = octeon_irq_ciu_set_affinity_v2,
+ .irq_cpu_offline = octeon_irq_cpu_offline_ciu,
+#endif
+};
+
+static struct irq_chip octeon_irq_chip_ciu_v2_edge = {
+ .name = "CIU",
+ .irq_enable = octeon_irq_ciu_enable_v2,
+ .irq_disable = octeon_irq_ciu_disable_all_v2,
.irq_ack = octeon_irq_ciu_ack,
.irq_mask = octeon_irq_ciu_disable_local_v2,
.irq_unmask = octeon_irq_ciu_enable_v2,
@@ -761,10 +892,50 @@ static struct irq_chip octeon_irq_chip_ciu_v2 = {
#endif
};
+/*
+ * Newer octeon chips have support for lockless CIU operation.
+ */
+static struct irq_chip octeon_irq_chip_ciu_sum2 = {
+ .name = "CIU",
+ .irq_enable = octeon_irq_ciu_enable_sum2,
+ .irq_disable = octeon_irq_ciu_disable_all_sum2,
+ .irq_mask = octeon_irq_ciu_disable_local_sum2,
+ .irq_unmask = octeon_irq_ciu_enable_sum2,
+#ifdef CONFIG_SMP
+ .irq_set_affinity = octeon_irq_ciu_set_affinity_sum2,
+ .irq_cpu_offline = octeon_irq_cpu_offline_ciu,
+#endif
+};
+
+static struct irq_chip octeon_irq_chip_ciu_sum2_edge = {
+ .name = "CIU",
+ .irq_enable = octeon_irq_ciu_enable_sum2,
+ .irq_disable = octeon_irq_ciu_disable_all_sum2,
+ .irq_ack = octeon_irq_ciu_ack_sum2,
+ .irq_mask = octeon_irq_ciu_disable_local_sum2,
+ .irq_unmask = octeon_irq_ciu_enable_sum2,
+#ifdef CONFIG_SMP
+ .irq_set_affinity = octeon_irq_ciu_set_affinity_sum2,
+ .irq_cpu_offline = octeon_irq_cpu_offline_ciu,
+#endif
+};
+
static struct irq_chip octeon_irq_chip_ciu = {
.name = "CIU",
.irq_enable = octeon_irq_ciu_enable,
.irq_disable = octeon_irq_ciu_disable_all,
+ .irq_mask = octeon_irq_ciu_disable_local,
+ .irq_unmask = octeon_irq_ciu_enable,
+#ifdef CONFIG_SMP
+ .irq_set_affinity = octeon_irq_ciu_set_affinity,
+ .irq_cpu_offline = octeon_irq_cpu_offline_ciu,
+#endif
+};
+
+static struct irq_chip octeon_irq_chip_ciu_edge = {
+ .name = "CIU",
+ .irq_enable = octeon_irq_ciu_enable,
+ .irq_disable = octeon_irq_ciu_disable_all,
.irq_ack = octeon_irq_ciu_ack,
.irq_mask = octeon_irq_ciu_disable_local,
.irq_unmask = octeon_irq_ciu_enable,
@@ -970,11 +1141,12 @@ static int octeon_irq_ciu_xlat(struct irq_domain *d,
unsigned int *out_type)
{
unsigned int ciu, bit;
+ struct octeon_irq_ciu_domain_data *dd = d->host_data;
ciu = intspec[0];
bit = intspec[1];
- if (ciu > 1 || bit > 63)
+ if (ciu >= dd->num_sum || bit > 63)
return -EINVAL;
*out_hwirq = (ciu << 6) | bit;
@@ -984,6 +1156,7 @@ static int octeon_irq_ciu_xlat(struct irq_domain *d,
}
static struct irq_chip *octeon_irq_ciu_chip;
+static struct irq_chip *octeon_irq_ciu_chip_edge;
static struct irq_chip *octeon_irq_gpio_chip;
static bool octeon_irq_virq_in_range(unsigned int virq)
@@ -999,8 +1172,10 @@ static bool octeon_irq_virq_in_range(unsigned int virq)
static int octeon_irq_ciu_map(struct irq_domain *d,
unsigned int virq, irq_hw_number_t hw)
{
+ int rv;
unsigned int line = hw >> 6;
unsigned int bit = hw & 63;
+ struct octeon_irq_ciu_domain_data *dd = d->host_data;
if (!octeon_irq_virq_in_range(virq))
return -EINVAL;
@@ -1009,54 +1184,61 @@ static int octeon_irq_ciu_map(struct irq_domain *d,
if (line == 0 && bit >= 16 && bit <32)
return 0;
- if (line > 1 || octeon_irq_ciu_to_irq[line][bit] != 0)
+ if (line >= dd->num_sum || octeon_irq_ciu_to_irq[line][bit] != 0)
return -EINVAL;
- if (octeon_irq_ciu_is_edge(line, bit))
- octeon_irq_set_ciu_mapping(virq, line, bit, 0,
- octeon_irq_ciu_chip,
- handle_edge_irq);
- else
- octeon_irq_set_ciu_mapping(virq, line, bit, 0,
- octeon_irq_ciu_chip,
- handle_level_irq);
-
- return 0;
+ if (line == 2) {
+ if (octeon_irq_ciu_is_edge(line, bit))
+ rv = octeon_irq_set_ciu_mapping(virq, line, bit, 0,
+ &octeon_irq_chip_ciu_sum2_edge,
+ handle_edge_irq);
+ else
+ rv = octeon_irq_set_ciu_mapping(virq, line, bit, 0,
+ &octeon_irq_chip_ciu_sum2,
+ handle_level_irq);
+ } else {
+ if (octeon_irq_ciu_is_edge(line, bit))
+ rv = octeon_irq_set_ciu_mapping(virq, line, bit, 0,
+ octeon_irq_ciu_chip_edge,
+ handle_edge_irq);
+ else
+ rv = octeon_irq_set_ciu_mapping(virq, line, bit, 0,
+ octeon_irq_ciu_chip,
+ handle_level_irq);
+ }
+ return rv;
}
-static int octeon_irq_gpio_map_common(struct irq_domain *d,
- unsigned int virq, irq_hw_number_t hw,
- int line_limit, struct irq_chip *chip)
+static int octeon_irq_gpio_map(struct irq_domain *d,
+ unsigned int virq, irq_hw_number_t hw)
{
struct octeon_irq_gpio_domain_data *gpiod = d->host_data;
unsigned int line, bit;
+ int r;
if (!octeon_irq_virq_in_range(virq))
return -EINVAL;
line = (hw + gpiod->base_hwirq) >> 6;
bit = (hw + gpiod->base_hwirq) & 63;
- if (line > line_limit || octeon_irq_ciu_to_irq[line][bit] != 0)
+ if (line > ARRAY_SIZE(octeon_irq_ciu_to_irq) ||
+ octeon_irq_ciu_to_irq[line][bit] != 0)
return -EINVAL;
- octeon_irq_set_ciu_mapping(virq, line, bit, hw,
- chip, octeon_irq_handle_gpio);
- return 0;
-}
-
-static int octeon_irq_gpio_map(struct irq_domain *d,
- unsigned int virq, irq_hw_number_t hw)
-{
- return octeon_irq_gpio_map_common(d, virq, hw, 1, octeon_irq_gpio_chip);
+ r = octeon_irq_set_ciu_mapping(virq, line, bit, hw,
+ octeon_irq_gpio_chip, octeon_irq_handle_trigger);
+ return r;
}
static struct irq_domain_ops octeon_irq_domain_ciu_ops = {
.map = octeon_irq_ciu_map,
+ .unmap = octeon_irq_free_cd,
.xlate = octeon_irq_ciu_xlat,
};
static struct irq_domain_ops octeon_irq_domain_gpio_ops = {
.map = octeon_irq_gpio_map,
+ .unmap = octeon_irq_free_cd,
.xlate = octeon_irq_gpio_xlat,
};
@@ -1095,6 +1277,26 @@ static void octeon_irq_ip3_ciu(void)
}
}
+static void octeon_irq_ip4_ciu(void)
+{
+ int coreid = cvmx_get_core_num();
+ u64 ciu_sum = cvmx_read_csr(CVMX_CIU_SUM2_PPX_IP4(coreid));
+ u64 ciu_en = cvmx_read_csr(CVMX_CIU_EN2_PPX_IP4(coreid));
+
+ ciu_sum &= ciu_en;
+ if (likely(ciu_sum)) {
+ int bit = fls64(ciu_sum) - 1;
+ int irq = octeon_irq_ciu_to_irq[2][bit];
+
+ if (likely(irq))
+ do_IRQ(irq);
+ else
+ spurious_interrupt();
+ } else {
+ spurious_interrupt();
+ }
+}
+
static bool octeon_irq_use_ip4;
static void octeon_irq_local_enable_ip4(void *arg)
@@ -1176,7 +1378,10 @@ static void octeon_irq_setup_secondary_ciu(void)
/* Enable the CIU lines */
set_c0_status(STATUSF_IP3 | STATUSF_IP2);
- clear_c0_status(STATUSF_IP4);
+ if (octeon_irq_use_ip4)
+ set_c0_status(STATUSF_IP4);
+ else
+ clear_c0_status(STATUSF_IP4);
}
static void octeon_irq_setup_secondary_ciu2(void)
@@ -1192,95 +1397,194 @@ static void octeon_irq_setup_secondary_ciu2(void)
clear_c0_status(STATUSF_IP4);
}
-static void __init octeon_irq_init_ciu(void)
+static int __init octeon_irq_init_ciu(
+ struct device_node *ciu_node, struct device_node *parent)
{
- unsigned int i;
+ unsigned int i, r;
struct irq_chip *chip;
+ struct irq_chip *chip_edge;
struct irq_chip *chip_mbox;
struct irq_chip *chip_wd;
- struct device_node *gpio_node;
- struct device_node *ciu_node;
struct irq_domain *ciu_domain = NULL;
+ struct octeon_irq_ciu_domain_data *dd;
+
+ dd = kzalloc(sizeof(*dd), GFP_KERNEL);
+ if (!dd)
+ return -ENOMEM;
octeon_irq_init_ciu_percpu();
octeon_irq_setup_secondary = octeon_irq_setup_secondary_ciu;
octeon_irq_ip2 = octeon_irq_ip2_ciu;
octeon_irq_ip3 = octeon_irq_ip3_ciu;
+ if ((OCTEON_IS_OCTEON2() || OCTEON_IS_OCTEON3())
+ && !OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ octeon_irq_ip4 = octeon_irq_ip4_ciu;
+ dd->num_sum = 3;
+ octeon_irq_use_ip4 = true;
+ } else {
+ octeon_irq_ip4 = octeon_irq_ip4_mask;
+ dd->num_sum = 2;
+ octeon_irq_use_ip4 = false;
+ }
if (OCTEON_IS_MODEL(OCTEON_CN58XX_PASS2_X) ||
OCTEON_IS_MODEL(OCTEON_CN56XX_PASS2_X) ||
OCTEON_IS_MODEL(OCTEON_CN52XX_PASS2_X) ||
- OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
+ OCTEON_IS_OCTEON2() || OCTEON_IS_OCTEON3()) {
chip = &octeon_irq_chip_ciu_v2;
+ chip_edge = &octeon_irq_chip_ciu_v2_edge;
chip_mbox = &octeon_irq_chip_ciu_mbox_v2;
chip_wd = &octeon_irq_chip_ciu_wd_v2;
octeon_irq_gpio_chip = &octeon_irq_chip_ciu_gpio_v2;
} else {
chip = &octeon_irq_chip_ciu;
+ chip_edge = &octeon_irq_chip_ciu_edge;
chip_mbox = &octeon_irq_chip_ciu_mbox;
chip_wd = &octeon_irq_chip_ciu_wd;
octeon_irq_gpio_chip = &octeon_irq_chip_ciu_gpio;
}
octeon_irq_ciu_chip = chip;
- octeon_irq_ip4 = octeon_irq_ip4_mask;
+ octeon_irq_ciu_chip_edge = chip_edge;
/* Mips internal */
octeon_irq_init_core();
- gpio_node = of_find_compatible_node(NULL, NULL, "cavium,octeon-3860-gpio");
- if (gpio_node) {
- struct octeon_irq_gpio_domain_data *gpiod;
-
- gpiod = kzalloc(sizeof(*gpiod), GFP_KERNEL);
- if (gpiod) {
- /* gpio domain host_data is the base hwirq number. */
- gpiod->base_hwirq = 16;
- irq_domain_add_linear(gpio_node, 16, &octeon_irq_domain_gpio_ops, gpiod);
- of_node_put(gpio_node);
- } else
- pr_warn("Cannot allocate memory for GPIO irq_domain.\n");
- } else
- pr_warn("Cannot find device node for cavium,octeon-3860-gpio.\n");
-
- ciu_node = of_find_compatible_node(NULL, NULL, "cavium,octeon-3860-ciu");
- if (ciu_node) {
- ciu_domain = irq_domain_add_tree(ciu_node, &octeon_irq_domain_ciu_ops, NULL);
- irq_set_default_host(ciu_domain);
- of_node_put(ciu_node);
- } else
- panic("Cannot find device node for cavium,octeon-3860-ciu.");
+ ciu_domain = irq_domain_add_tree(
+ ciu_node, &octeon_irq_domain_ciu_ops, dd);
+ irq_set_default_host(ciu_domain);
/* CIU_0 */
- for (i = 0; i < 16; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_WORKQ0, 0, i + 0);
+ for (i = 0; i < 16; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_WORKQ0, 0, i + 0);
+ if (r)
+ goto err;
+ }
+
+ r = octeon_irq_set_ciu_mapping(
+ OCTEON_IRQ_MBOX0, 0, 32, 0, chip_mbox, handle_percpu_irq);
+ if (r)
+ goto err;
+ r = octeon_irq_set_ciu_mapping(
+ OCTEON_IRQ_MBOX1, 0, 33, 0, chip_mbox, handle_percpu_irq);
+ if (r)
+ goto err;
+
+ for (i = 0; i < 4; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_PCI_INT0, 0, i + 36);
+ if (r)
+ goto err;
+ }
+ for (i = 0; i < 4; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_PCI_MSI0, 0, i + 40);
+ if (r)
+ goto err;
+ }
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_MBOX0, 0, 32, 0, chip_mbox, handle_percpu_irq);
- octeon_irq_set_ciu_mapping(OCTEON_IRQ_MBOX1, 0, 33, 0, chip_mbox, handle_percpu_irq);
+ r = octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_TWSI, 0, 45);
+ if (r)
+ goto err;
- for (i = 0; i < 4; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_PCI_INT0, 0, i + 36);
- for (i = 0; i < 4; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_PCI_MSI0, 0, i + 40);
+ r = octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_RML, 0, 46);
+ if (r)
+ goto err;
- octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_TWSI, 0, 45);
- octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_RML, 0, 46);
- for (i = 0; i < 4; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_TIMER0, 0, i + 52);
+ for (i = 0; i < 4; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_TIMER0, 0, i + 52);
+ if (r)
+ goto err;
+ }
+
+ r = octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB0, 0, 56);
+ if (r)
+ goto err;
- octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB0, 0, 56);
- octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_TWSI2, 0, 59);
+ r = octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_TWSI2, 0, 59);
+ if (r)
+ goto err;
/* CIU_1 */
- for (i = 0; i < 16; i++)
- octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_WDOG0, 1, i + 0, 0, chip_wd, handle_level_irq);
+ for (i = 0; i < 16; i++) {
+ r = octeon_irq_set_ciu_mapping(
+ i + OCTEON_IRQ_WDOG0, 1, i + 0, 0, chip_wd,
+ handle_level_irq);
+ if (r)
+ goto err;
+ }
- octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB1, 1, 17);
+ r = octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB1, 1, 17);
+ if (r)
+ goto err;
/* Enable the CIU lines */
set_c0_status(STATUSF_IP3 | STATUSF_IP2);
- clear_c0_status(STATUSF_IP4);
+ if (octeon_irq_use_ip4)
+ set_c0_status(STATUSF_IP4);
+ else
+ clear_c0_status(STATUSF_IP4);
+
+ return 0;
+err:
+ return r;
}
+static int __init octeon_irq_init_gpio(
+ struct device_node *gpio_node, struct device_node *parent)
+{
+ struct octeon_irq_gpio_domain_data *gpiod;
+ u32 interrupt_cells;
+ unsigned int base_hwirq;
+ int r;
+
+ r = of_property_read_u32(parent, "#interrupt-cells", &interrupt_cells);
+ if (r)
+ return r;
+
+ if (interrupt_cells == 1) {
+ u32 v;
+
+ r = of_property_read_u32_index(gpio_node, "interrupts", 0, &v);
+ if (r) {
+ pr_warn("No \"interrupts\" property.\n");
+ return r;
+ }
+ base_hwirq = v;
+ } else if (interrupt_cells == 2) {
+ u32 v0, v1;
+
+ r = of_property_read_u32_index(gpio_node, "interrupts", 0, &v0);
+ if (r) {
+ pr_warn("No \"interrupts\" property.\n");
+ return r;
+ }
+ r = of_property_read_u32_index(gpio_node, "interrupts", 1, &v1);
+ if (r) {
+ pr_warn("No \"interrupts\" property.\n");
+ return r;
+ }
+ base_hwirq = (v0 << 6) | v1;
+ } else {
+ pr_warn("Bad \"#interrupt-cells\" property: %u\n",
+ interrupt_cells);
+ return -EINVAL;
+ }
+
+ gpiod = kzalloc(sizeof(*gpiod), GFP_KERNEL);
+ if (gpiod) {
+ /* gpio domain host_data is the base hwirq number. */
+ gpiod->base_hwirq = base_hwirq;
+ irq_domain_add_linear(
+ gpio_node, 16, &octeon_irq_domain_gpio_ops, gpiod);
+ } else {
+ pr_warn("Cannot allocate memory for GPIO irq_domain.\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
/*
* Watchdog interrupts are special. They are associated with a single
* core, so we hardwire the affinity to that core.
@@ -1290,12 +1594,13 @@ static void octeon_irq_ciu2_wd_enable(struct irq_data *data)
u64 mask;
u64 en_addr;
int coreid = data->irq - OCTEON_IRQ_WDOG0;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(coreid) + (0x1000ull * cd.s.line);
+ en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(coreid) +
+ (0x1000ull * cd->line);
cvmx_write_csr(en_addr, mask);
}
@@ -1306,12 +1611,13 @@ static void octeon_irq_ciu2_enable(struct irq_data *data)
u64 en_addr;
int cpu = next_cpu_for_irq(data);
int coreid = octeon_coreid_for_cpu(cpu);
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(coreid) + (0x1000ull * cd.s.line);
+ en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(coreid) +
+ (0x1000ull * cd->line);
cvmx_write_csr(en_addr, mask);
}
@@ -1320,12 +1626,13 @@ static void octeon_irq_ciu2_enable_local(struct irq_data *data)
u64 mask;
u64 en_addr;
int coreid = cvmx_get_core_num();
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(coreid) + (0x1000ull * cd.s.line);
+ en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(coreid) +
+ (0x1000ull * cd->line);
cvmx_write_csr(en_addr, mask);
}
@@ -1335,12 +1642,13 @@ static void octeon_irq_ciu2_disable_local(struct irq_data *data)
u64 mask;
u64 en_addr;
int coreid = cvmx_get_core_num();
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1C(coreid) + (0x1000ull * cd.s.line);
+ en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1C(coreid) +
+ (0x1000ull * cd->line);
cvmx_write_csr(en_addr, mask);
}
@@ -1350,12 +1658,12 @@ static void octeon_irq_ciu2_ack(struct irq_data *data)
u64 mask;
u64 en_addr;
int coreid = cvmx_get_core_num();
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
- en_addr = CVMX_CIU2_RAW_PPX_IP2_WRKQ(coreid) + (0x1000ull * cd.s.line);
+ en_addr = CVMX_CIU2_RAW_PPX_IP2_WRKQ(coreid) + (0x1000ull * cd->line);
cvmx_write_csr(en_addr, mask);
}
@@ -1364,13 +1672,14 @@ static void octeon_irq_ciu2_disable_all(struct irq_data *data)
{
int cpu;
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << (cd.s.bit);
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << (cd->bit);
for_each_online_cpu(cpu) {
- u64 en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1C(octeon_coreid_for_cpu(cpu)) + (0x1000ull * cd.s.line);
+ u64 en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1C(
+ octeon_coreid_for_cpu(cpu)) + (0x1000ull * cd->line);
cvmx_write_csr(en_addr, mask);
}
}
@@ -1383,7 +1692,8 @@ static void octeon_irq_ciu2_mbox_enable_all(struct irq_data *data)
mask = 1ull << (data->irq - OCTEON_IRQ_MBOX0);
for_each_online_cpu(cpu) {
- u64 en_addr = CVMX_CIU2_EN_PPX_IP3_MBOX_W1S(octeon_coreid_for_cpu(cpu));
+ u64 en_addr = CVMX_CIU2_EN_PPX_IP3_MBOX_W1S(
+ octeon_coreid_for_cpu(cpu));
cvmx_write_csr(en_addr, mask);
}
}
@@ -1396,7 +1706,8 @@ static void octeon_irq_ciu2_mbox_disable_all(struct irq_data *data)
mask = 1ull << (data->irq - OCTEON_IRQ_MBOX0);
for_each_online_cpu(cpu) {
- u64 en_addr = CVMX_CIU2_EN_PPX_IP3_MBOX_W1C(octeon_coreid_for_cpu(cpu));
+ u64 en_addr = CVMX_CIU2_EN_PPX_IP3_MBOX_W1C(
+ octeon_coreid_for_cpu(cpu));
cvmx_write_csr(en_addr, mask);
}
}
@@ -1430,21 +1741,25 @@ static int octeon_irq_ciu2_set_affinity(struct irq_data *data,
int cpu;
bool enable_one = !irqd_irq_disabled(data) && !irqd_irq_masked(data);
u64 mask;
- union octeon_ciu_chip_data cd;
+ struct octeon_ciu_chip_data *cd;
if (!enable_one)
return 0;
- cd.p = irq_data_get_irq_chip_data(data);
- mask = 1ull << cd.s.bit;
+ cd = irq_data_get_irq_chip_data(data);
+ mask = 1ull << cd->bit;
for_each_online_cpu(cpu) {
u64 en_addr;
if (cpumask_test_cpu(cpu, dest) && enable_one) {
enable_one = false;
- en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(octeon_coreid_for_cpu(cpu)) + (0x1000ull * cd.s.line);
+ en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1S(
+ octeon_coreid_for_cpu(cpu)) +
+ (0x1000ull * cd->line);
} else {
- en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1C(octeon_coreid_for_cpu(cpu)) + (0x1000ull * cd.s.line);
+ en_addr = CVMX_CIU2_EN_PPX_IP2_WRKQ_W1C(
+ octeon_coreid_for_cpu(cpu)) +
+ (0x1000ull * cd->line);
}
cvmx_write_csr(en_addr, mask);
}
@@ -1461,10 +1776,11 @@ static void octeon_irq_ciu2_enable_gpio(struct irq_data *data)
static void octeon_irq_ciu2_disable_gpio(struct irq_data *data)
{
- union octeon_ciu_chip_data cd;
- cd.p = irq_data_get_irq_chip_data(data);
+ struct octeon_ciu_chip_data *cd;
+
+ cd = irq_data_get_irq_chip_data(data);
- cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd.s.gpio_line), 0);
+ cvmx_write_csr(CVMX_GPIO_BIT_CFGX(cd->gpio_line), 0);
octeon_irq_ciu2_disable_all(data);
}
@@ -1473,6 +1789,18 @@ static struct irq_chip octeon_irq_chip_ciu2 = {
.name = "CIU2-E",
.irq_enable = octeon_irq_ciu2_enable,
.irq_disable = octeon_irq_ciu2_disable_all,
+ .irq_mask = octeon_irq_ciu2_disable_local,
+ .irq_unmask = octeon_irq_ciu2_enable,
+#ifdef CONFIG_SMP
+ .irq_set_affinity = octeon_irq_ciu2_set_affinity,
+ .irq_cpu_offline = octeon_irq_cpu_offline_ciu,
+#endif
+};
+
+static struct irq_chip octeon_irq_chip_ciu2_edge = {
+ .name = "CIU2-E",
+ .irq_enable = octeon_irq_ciu2_enable,
+ .irq_disable = octeon_irq_ciu2_disable_all,
.irq_ack = octeon_irq_ciu2_ack,
.irq_mask = octeon_irq_ciu2_disable_local,
.irq_unmask = octeon_irq_ciu2_enable,
@@ -1582,7 +1910,7 @@ static int octeon_irq_ciu2_map(struct irq_domain *d,
if (octeon_irq_ciu2_is_edge(line, bit))
octeon_irq_set_ciu_mapping(virq, line, bit, 0,
- &octeon_irq_chip_ciu2,
+ &octeon_irq_chip_ciu2_edge,
handle_edge_irq);
else
octeon_irq_set_ciu_mapping(virq, line, bit, 0,
@@ -1591,22 +1919,13 @@ static int octeon_irq_ciu2_map(struct irq_domain *d,
return 0;
}
-static int octeon_irq_ciu2_gpio_map(struct irq_domain *d,
- unsigned int virq, irq_hw_number_t hw)
-{
- return octeon_irq_gpio_map_common(d, virq, hw, 7, &octeon_irq_chip_ciu2_gpio);
-}
static struct irq_domain_ops octeon_irq_domain_ciu2_ops = {
.map = octeon_irq_ciu2_map,
+ .unmap = octeon_irq_free_cd,
.xlate = octeon_irq_ciu2_xlat,
};
-static struct irq_domain_ops octeon_irq_domain_ciu2_gpio_ops = {
- .map = octeon_irq_ciu2_gpio_map,
- .xlate = octeon_irq_gpio_xlat,
-};
-
static void octeon_irq_ciu2(void)
{
int line;
@@ -1674,16 +1993,16 @@ out:
return;
}
-static void __init octeon_irq_init_ciu2(void)
+static int __init octeon_irq_init_ciu2(
+ struct device_node *ciu_node, struct device_node *parent)
{
- unsigned int i;
- struct device_node *gpio_node;
- struct device_node *ciu_node;
+ unsigned int i, r;
struct irq_domain *ciu_domain = NULL;
octeon_irq_init_ciu2_percpu();
octeon_irq_setup_secondary = octeon_irq_setup_secondary_ciu2;
+ octeon_irq_gpio_chip = &octeon_irq_chip_ciu2_gpio;
octeon_irq_ip2 = octeon_irq_ciu2;
octeon_irq_ip3 = octeon_irq_ciu2_mbox;
octeon_irq_ip4 = octeon_irq_ip4_mask;
@@ -1691,47 +2010,49 @@ static void __init octeon_irq_init_ciu2(void)
/* Mips internal */
octeon_irq_init_core();
- gpio_node = of_find_compatible_node(NULL, NULL, "cavium,octeon-3860-gpio");
- if (gpio_node) {
- struct octeon_irq_gpio_domain_data *gpiod;
-
- gpiod = kzalloc(sizeof(*gpiod), GFP_KERNEL);
- if (gpiod) {
- /* gpio domain host_data is the base hwirq number. */
- gpiod->base_hwirq = 7 << 6;
- irq_domain_add_linear(gpio_node, 16, &octeon_irq_domain_ciu2_gpio_ops, gpiod);
- of_node_put(gpio_node);
- } else
- pr_warn("Cannot allocate memory for GPIO irq_domain.\n");
- } else
- pr_warn("Cannot find device node for cavium,octeon-3860-gpio.\n");
-
- ciu_node = of_find_compatible_node(NULL, NULL, "cavium,octeon-6880-ciu2");
- if (ciu_node) {
- ciu_domain = irq_domain_add_tree(ciu_node, &octeon_irq_domain_ciu2_ops, NULL);
- irq_set_default_host(ciu_domain);
- of_node_put(ciu_node);
- } else
- panic("Cannot find device node for cavium,octeon-6880-ciu2.");
+ ciu_domain = irq_domain_add_tree(
+ ciu_node, &octeon_irq_domain_ciu2_ops, NULL);
+ irq_set_default_host(ciu_domain);
/* CUI2 */
- for (i = 0; i < 64; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_WORKQ0, 0, i);
+ for (i = 0; i < 64; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_WORKQ0, 0, i);
+ if (r)
+ goto err;
+ }
- for (i = 0; i < 32; i++)
- octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_WDOG0, 1, i, 0,
- &octeon_irq_chip_ciu2_wd, handle_level_irq);
+ for (i = 0; i < 32; i++) {
+ r = octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_WDOG0, 1, i, 0,
+ &octeon_irq_chip_ciu2_wd, handle_level_irq);
+ if (r)
+ goto err;
+ }
- for (i = 0; i < 4; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_TIMER0, 3, i + 8);
+ for (i = 0; i < 4; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_TIMER0, 3, i + 8);
+ if (r)
+ goto err;
+ }
- octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB0, 3, 44);
+ r = octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB0, 3, 44);
+ if (r)
+ goto err;
- for (i = 0; i < 4; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_PCI_INT0, 4, i);
+ for (i = 0; i < 4; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_PCI_INT0, 4, i);
+ if (r)
+ goto err;
+ }
- for (i = 0; i < 4; i++)
- octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_PCI_MSI0, 4, i + 8);
+ for (i = 0; i < 4; i++) {
+ r = octeon_irq_force_ciu_mapping(
+ ciu_domain, i + OCTEON_IRQ_PCI_MSI0, 4, i + 8);
+ if (r)
+ goto err;
+ }
irq_set_chip_and_handler(OCTEON_IRQ_MBOX0, &octeon_irq_chip_ciu2_mbox, handle_percpu_irq);
irq_set_chip_and_handler(OCTEON_IRQ_MBOX1, &octeon_irq_chip_ciu2_mbox, handle_percpu_irq);
@@ -1741,8 +2062,242 @@ static void __init octeon_irq_init_ciu2(void)
/* Enable the CIU lines */
set_c0_status(STATUSF_IP3 | STATUSF_IP2);
clear_c0_status(STATUSF_IP4);
+ return 0;
+err:
+ return r;
+}
+
+struct octeon_irq_cib_host_data {
+ raw_spinlock_t lock;
+ u64 raw_reg;
+ u64 en_reg;
+ int max_bits;
+};
+
+struct octeon_irq_cib_chip_data {
+ struct octeon_irq_cib_host_data *host_data;
+ int bit;
+};
+
+static void octeon_irq_cib_enable(struct irq_data *data)
+{
+ unsigned long flags;
+ u64 en;
+ struct octeon_irq_cib_chip_data *cd = irq_data_get_irq_chip_data(data);
+ struct octeon_irq_cib_host_data *host_data = cd->host_data;
+
+ raw_spin_lock_irqsave(&host_data->lock, flags);
+ en = cvmx_read_csr(host_data->en_reg);
+ en |= 1ull << cd->bit;
+ cvmx_write_csr(host_data->en_reg, en);
+ raw_spin_unlock_irqrestore(&host_data->lock, flags);
+}
+
+static void octeon_irq_cib_disable(struct irq_data *data)
+{
+ unsigned long flags;
+ u64 en;
+ struct octeon_irq_cib_chip_data *cd = irq_data_get_irq_chip_data(data);
+ struct octeon_irq_cib_host_data *host_data = cd->host_data;
+
+ raw_spin_lock_irqsave(&host_data->lock, flags);
+ en = cvmx_read_csr(host_data->en_reg);
+ en &= ~(1ull << cd->bit);
+ cvmx_write_csr(host_data->en_reg, en);
+ raw_spin_unlock_irqrestore(&host_data->lock, flags);
+}
+
+static int octeon_irq_cib_set_type(struct irq_data *data, unsigned int t)
+{
+ irqd_set_trigger_type(data, t);
+ return IRQ_SET_MASK_OK;
+}
+
+static struct irq_chip octeon_irq_chip_cib = {
+ .name = "CIB",
+ .irq_enable = octeon_irq_cib_enable,
+ .irq_disable = octeon_irq_cib_disable,
+ .irq_mask = octeon_irq_cib_disable,
+ .irq_unmask = octeon_irq_cib_enable,
+ .irq_set_type = octeon_irq_cib_set_type,
+};
+
+static int octeon_irq_cib_xlat(struct irq_domain *d,
+ struct device_node *node,
+ const u32 *intspec,
+ unsigned int intsize,
+ unsigned long *out_hwirq,
+ unsigned int *out_type)
+{
+ unsigned int type = 0;
+
+ if (intsize == 2)
+ type = intspec[1];
+
+ switch (type) {
+ case 0: /* unofficial value, but we might as well let it work. */
+ case 4: /* official value for level triggering. */
+ *out_type = IRQ_TYPE_LEVEL_HIGH;
+ break;
+ case 1: /* official value for edge triggering. */
+ *out_type = IRQ_TYPE_EDGE_RISING;
+ break;
+ default: /* Nothing else is acceptable. */
+ return -EINVAL;
+ }
+
+ *out_hwirq = intspec[0];
+
+ return 0;
+}
+
+static int octeon_irq_cib_map(struct irq_domain *d,
+ unsigned int virq, irq_hw_number_t hw)
+{
+ struct octeon_irq_cib_host_data *host_data = d->host_data;
+ struct octeon_irq_cib_chip_data *cd;
+
+ if (hw >= host_data->max_bits) {
+ pr_err("ERROR: %s mapping %u is to big!\n",
+ d->of_node->name, (unsigned)hw);
+ return -EINVAL;
+ }
+
+ cd = kzalloc(sizeof(*cd), GFP_KERNEL);
+ cd->host_data = host_data;
+ cd->bit = hw;
+
+ irq_set_chip_and_handler(virq, &octeon_irq_chip_cib,
+ handle_simple_irq);
+ irq_set_chip_data(virq, cd);
+ return 0;
}
+static struct irq_domain_ops octeon_irq_domain_cib_ops = {
+ .map = octeon_irq_cib_map,
+ .unmap = octeon_irq_free_cd,
+ .xlate = octeon_irq_cib_xlat,
+};
+
+/* Chain to real handler. */
+static irqreturn_t octeon_irq_cib_handler(int my_irq, void *data)
+{
+ u64 en;
+ u64 raw;
+ u64 bits;
+ int i;
+ int irq;
+ struct irq_domain *cib_domain = data;
+ struct octeon_irq_cib_host_data *host_data = cib_domain->host_data;
+
+ en = cvmx_read_csr(host_data->en_reg);
+ raw = cvmx_read_csr(host_data->raw_reg);
+
+ bits = en & raw;
+
+ for (i = 0; i < host_data->max_bits; i++) {
+ if ((bits & 1ull << i) == 0)
+ continue;
+ irq = irq_find_mapping(cib_domain, i);
+ if (!irq) {
+ unsigned long flags;
+
+ pr_err("ERROR: CIB bit %d@%llx IRQ unhandled, disabling\n",
+ i, host_data->raw_reg);
+ raw_spin_lock_irqsave(&host_data->lock, flags);
+ en = cvmx_read_csr(host_data->en_reg);
+ en &= ~(1ull << i);
+ cvmx_write_csr(host_data->en_reg, en);
+ cvmx_write_csr(host_data->raw_reg, 1ull << i);
+ raw_spin_unlock_irqrestore(&host_data->lock, flags);
+ } else {
+ struct irq_desc *desc = irq_to_desc(irq);
+ struct irq_data *irq_data = irq_desc_get_irq_data(desc);
+ /* If edge, acknowledge the bit we will be sending. */
+ if (irqd_get_trigger_type(irq_data) &
+ IRQ_TYPE_EDGE_BOTH)
+ cvmx_write_csr(host_data->raw_reg, 1ull << i);
+ generic_handle_irq_desc(irq, desc);
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __init octeon_irq_init_cib(struct device_node *ciu_node,
+ struct device_node *parent)
+{
+ const __be32 *addr;
+ u32 val;
+ struct octeon_irq_cib_host_data *host_data;
+ int parent_irq;
+ int r;
+ struct irq_domain *cib_domain;
+
+ parent_irq = irq_of_parse_and_map(ciu_node, 0);
+ if (!parent_irq) {
+ pr_err("ERROR: Couldn't acquire parent_irq for %s\n.",
+ ciu_node->name);
+ return -EINVAL;
+ }
+
+ host_data = kzalloc(sizeof(*host_data), GFP_KERNEL);
+ raw_spin_lock_init(&host_data->lock);
+
+ addr = of_get_address(ciu_node, 0, NULL, NULL);
+ if (!addr) {
+ pr_err("ERROR: Couldn't acquire reg(0) %s\n.", ciu_node->name);
+ return -EINVAL;
+ }
+ host_data->raw_reg = (u64)phys_to_virt(
+ of_translate_address(ciu_node, addr));
+
+ addr = of_get_address(ciu_node, 1, NULL, NULL);
+ if (!addr) {
+ pr_err("ERROR: Couldn't acquire reg(1) %s\n.", ciu_node->name);
+ return -EINVAL;
+ }
+ host_data->en_reg = (u64)phys_to_virt(
+ of_translate_address(ciu_node, addr));
+
+ r = of_property_read_u32(ciu_node, "cavium,max-bits", &val);
+ if (r) {
+ pr_err("ERROR: Couldn't read cavium,max-bits from %s\n.",
+ ciu_node->name);
+ return r;
+ }
+ host_data->max_bits = val;
+
+ cib_domain = irq_domain_add_linear(ciu_node, host_data->max_bits,
+ &octeon_irq_domain_cib_ops,
+ host_data);
+ if (!cib_domain) {
+ pr_err("ERROR: Couldn't irq_domain_add_linear()\n.");
+ return -ENOMEM;
+ }
+
+ cvmx_write_csr(host_data->en_reg, 0); /* disable all IRQs */
+ cvmx_write_csr(host_data->raw_reg, ~0); /* ack any outstanding */
+
+ r = request_irq(parent_irq, octeon_irq_cib_handler,
+ IRQF_NO_THREAD, "cib", cib_domain);
+ if (r) {
+ pr_err("request_irq cib failed %d\n", r);
+ return r;
+ }
+ pr_info("CIB interrupt controller probed: %llx %d\n",
+ host_data->raw_reg, host_data->max_bits);
+ return 0;
+}
+
+static struct of_device_id ciu_types[] __initdata = {
+ {.compatible = "cavium,octeon-3860-ciu", .data = octeon_irq_init_ciu},
+ {.compatible = "cavium,octeon-3860-gpio", .data = octeon_irq_init_gpio},
+ {.compatible = "cavium,octeon-6880-ciu2", .data = octeon_irq_init_ciu2},
+ {.compatible = "cavium,octeon-7130-cib", .data = octeon_irq_init_cib},
+ {}
+};
+
void __init arch_init_irq(void)
{
#ifdef CONFIG_SMP
@@ -1750,10 +2305,7 @@ void __init arch_init_irq(void)
cpumask_clear(irq_default_affinity);
cpumask_set_cpu(smp_processor_id(), irq_default_affinity);
#endif
- if (OCTEON_IS_MODEL(OCTEON_CN68XX))
- octeon_irq_init_ciu2();
- else
- octeon_irq_init_ciu();
+ of_irq_init(ciu_types);
}
asmlinkage void plat_irq_dispatch(void)
@@ -1767,13 +2319,13 @@ asmlinkage void plat_irq_dispatch(void)
cop0_cause &= cop0_status;
cop0_cause &= ST0_IM;
- if (unlikely(cop0_cause & STATUSF_IP2))
+ if (cop0_cause & STATUSF_IP2)
octeon_irq_ip2();
- else if (unlikely(cop0_cause & STATUSF_IP3))
+ else if (cop0_cause & STATUSF_IP3)
octeon_irq_ip3();
- else if (unlikely(cop0_cause & STATUSF_IP4))
+ else if (cop0_cause & STATUSF_IP4)
octeon_irq_ip4();
- else if (likely(cop0_cause))
+ else if (cop0_cause)
do_IRQ(fls(cop0_cause) - 9 + MIPS_CPU_IRQ_BASE);
else
break;
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index 94f888d3384e..a42110e7edbc 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -41,6 +41,7 @@
#include <asm/octeon/octeon.h>
#include <asm/octeon/pci-octeon.h>
#include <asm/octeon/cvmx-mio-defs.h>
+#include <asm/octeon/cvmx-rst-defs.h>
extern struct plat_smp_ops octeon_smp_ops;
@@ -579,12 +580,10 @@ void octeon_user_io_init(void)
/* R/W If set, CVMSEG is available for loads/stores in user
* mode. */
cvmmemctl.s.cvmsegenau = 0;
- /* R/W Size of local memory in cache blocks, 54 (6912 bytes)
- * is max legal value. */
- cvmmemctl.s.lmemsz = CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE;
write_c0_cvmmemctl(cvmmemctl.u64);
+ /* Setup of CVMSEG is done in kernel-entry-init.h */
if (smp_processor_id() == 0)
pr_notice("CVMSEG size: %d cache lines (%d bytes)\n",
CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE,
@@ -615,6 +614,7 @@ void __init prom_init(void)
const char *arg;
char *p;
int i;
+ u64 t;
int argc;
#ifdef CONFIG_CAVIUM_RESERVE32
int64_t addr = -1;
@@ -654,15 +654,56 @@ void __init prom_init(void)
sysinfo->dfa_ref_clock_hz = octeon_bootinfo->dfa_ref_clock_hz;
sysinfo->bootloader_config_flags = octeon_bootinfo->config_flags;
- if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
+ if (OCTEON_IS_OCTEON2()) {
/* I/O clock runs at a different rate than the CPU. */
union cvmx_mio_rst_boot rst_boot;
rst_boot.u64 = cvmx_read_csr(CVMX_MIO_RST_BOOT);
octeon_io_clock_rate = 50000000 * rst_boot.s.pnr_mul;
+ } else if (OCTEON_IS_OCTEON3()) {
+ /* I/O clock runs at a different rate than the CPU. */
+ union cvmx_rst_boot rst_boot;
+ rst_boot.u64 = cvmx_read_csr(CVMX_RST_BOOT);
+ octeon_io_clock_rate = 50000000 * rst_boot.s.pnr_mul;
} else {
octeon_io_clock_rate = sysinfo->cpu_clock_hz;
}
+ t = read_c0_cvmctl();
+ if ((t & (1ull << 27)) == 0) {
+ /*
+ * Setup the multiplier save/restore code if
+ * CvmCtl[NOMUL] clear.
+ */
+ void *save;
+ void *save_end;
+ void *restore;
+ void *restore_end;
+ int save_len;
+ int restore_len;
+ int save_max = (char *)octeon_mult_save_end -
+ (char *)octeon_mult_save;
+ int restore_max = (char *)octeon_mult_restore_end -
+ (char *)octeon_mult_restore;
+ if (current_cpu_data.cputype == CPU_CAVIUM_OCTEON3) {
+ save = octeon_mult_save3;
+ save_end = octeon_mult_save3_end;
+ restore = octeon_mult_restore3;
+ restore_end = octeon_mult_restore3_end;
+ } else {
+ save = octeon_mult_save2;
+ save_end = octeon_mult_save2_end;
+ restore = octeon_mult_restore2;
+ restore_end = octeon_mult_restore2_end;
+ }
+ save_len = (char *)save_end - (char *)save;
+ restore_len = (char *)restore_end - (char *)restore;
+ if (!WARN_ON(save_len > save_max ||
+ restore_len > restore_max)) {
+ memcpy(octeon_mult_save, save, save_len);
+ memcpy(octeon_mult_restore, restore, restore_len);
+ }
+ }
+
/*
* Only enable the LED controller if we're running on a CN38XX, CN58XX,
* or CN56XX. The CN30XX and CN31XX don't have an LED controller.
@@ -1004,7 +1045,7 @@ EXPORT_SYMBOL(prom_putchar);
void prom_free_prom_memory(void)
{
- if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X)) {
+ if (CAVIUM_OCTEON_DCACHE_PREFETCH_WAR) {
/* Check for presence of Core-14449 fix. */
u32 insn;
u32 *foo;
@@ -1026,8 +1067,9 @@ void prom_free_prom_memory(void)
panic("No PREF instruction at Core-14449 probe point.");
if (((insn >> 16) & 0x1f) != 28)
- panic("Core-14449 WAR not in place (%04x).\n"
- "Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).", insn);
+ panic("OCTEON II DCache prefetch workaround not in place (%04x).\n"
+ "Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).",
+ insn);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 05:33:49 +0100