* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM / Runtime: Fix typo in status comparison causing warning
<listitem><para>A simple shell</para></listitem>
<listitem><para>The kdb core command set</para></listitem>
<listitem><para>A registration API to register additional kdb shell commands.</para>
- <para>A good example of a self-contained kdb module is the "ftdump" command for dumping the ftrace buffer. See: kernel/trace/trace_kdb.c</para></listitem>
+ <itemizedlist>
+ <listitem><para>A good example of a self-contained kdb module
+ is the "ftdump" command for dumping the ftrace buffer. See:
+ kernel/trace/trace_kdb.c</para></listitem>
+ <listitem><para>For an example of how to dynamically register
+ a new kdb command you can build the kdb_hello.ko kernel module
+ from samples/kdb/kdb_hello.c. To build this example you can
+ set CONFIG_SAMPLES=y and CONFIG_SAMPLE_KDB=m in your kernel
+ config. Later run "modprobe kdb_hello" and the next time you
+ enter the kdb shell, you can run the "hello"
+ command.</para></listitem>
+ </itemizedlist></listitem>
<listitem><para>The implementation for kdb_printf() which
emits messages directly to I/O drivers, bypassing the kernel
log.</para></listitem>
endif
# Additional ARCH settings for sparc
+ifeq ($(ARCH),sparc32)
+ SRCARCH := sparc
+endif
ifeq ($(ARCH),sparc64)
SRCARCH := sparc
endif
#define _GP_REGS 16
#define _FP_REGS 8
#define _EXTRA_REGS 2
-#define DBG_MAX_REG_NUM (_GP_REGS + (_FP_REGS * 3) + _EXTRA_REGS)
+#define GDB_MAX_REGS (_GP_REGS + (_FP_REGS * 3) + _EXTRA_REGS)
+#define DBG_MAX_REG_NUM (_GP_REGS + _FP_REGS + _EXTRA_REGS)
#define KGDB_MAX_NO_CPUS 1
#define BUFMAX 400
#define _SPT 13
#define _LR 14
#define _PC 15
-#define _CPSR (DBG_MAX_REG_NUM - 1)
+#define _CPSR (GDB_MAX_REGS - 1)
/*
* So that we can denote the end of a frame for tracing,
return;
/* Initialize to zero */
- for (regno = 0; regno < DBG_MAX_REG_NUM; regno++)
+ for (regno = 0; regno < GDB_MAX_REGS; regno++)
gdb_regs[regno] = 0;
/* Otherwise, we have only some registers from switch_to() */
}
}
-void kgdb_disable_hw_debug(struct pt_regs *regs)
+static void bfin_disable_hw_debug(struct pt_regs *regs)
{
/* Disable hardware debugging while we are in kgdb */
bfin_write_WPIACTL(0);
#endif
.set_hw_breakpoint = bfin_set_hw_break,
.remove_hw_breakpoint = bfin_remove_hw_break,
+ .disable_hw_break = bfin_disable_hw_debug,
.remove_all_hw_break = bfin_remove_all_hw_break,
.correct_hw_break = bfin_correct_hw_break,
};
}
-static int
-pfmfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data,
- struct vfsmount *mnt)
+static struct dentry *
+pfmfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data)
{
- return get_sb_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC, mnt);
+ return mount_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC);
}
static struct file_system_type pfm_fs_type = {
.name = "pfmfs",
- .get_sb = pfmfs_get_sb,
+ .mount = pfmfs_mount,
.kill_sb = kill_anon_super,
};
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IDE
select HAVE_OPROFILE
+ select HAVE_PERF_EVENTS
+ select PERF_USE_VMALLOC
select HAVE_ARCH_KGDB
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_C_RECORDMCOUNT
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_KPROBES
select HAVE_KRETPROBES
select RTC_LIB if !MACH_LOONGSON
select GENERIC_ATOMIC64 if !64BIT
+ select HAVE_DMA_ATTRS
+ select HAVE_DMA_API_DEBUG
menu "Machine selection"
select SWAP_IO_SPACE
select HW_HAS_PCI
select ARCH_SUPPORTS_MSI
+ select ZONE_DMA32
+ select USB_ARCH_HAS_OHCI
+ select USB_ARCH_HAS_EHCI
help
This option supports all of the Octeon reference boards from Cavium
Networks. It builds a kernel that dynamically determines the Octeon
can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
Full details can be found at http://www.caviumnetworks.com.
+config CPU_BMIPS3300
+ bool "BMIPS3300"
+ depends on SYS_HAS_CPU_BMIPS3300
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select WEAK_ORDERING
+ help
+ Broadcom BMIPS3300 processors.
+
+config CPU_BMIPS4350
+ bool "BMIPS4350"
+ depends on SYS_HAS_CPU_BMIPS4350
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select SWAP_IO_SPACE
+ select SYS_SUPPORTS_SMP
+ select SYS_SUPPORTS_HOTPLUG_CPU
+ select WEAK_ORDERING
+ help
+ Broadcom BMIPS4350 ("VIPER") processors.
+
+config CPU_BMIPS4380
+ bool "BMIPS4380"
+ depends on SYS_HAS_CPU_BMIPS4380
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select SWAP_IO_SPACE
+ select SYS_SUPPORTS_SMP
+ select SYS_SUPPORTS_HOTPLUG_CPU
+ select WEAK_ORDERING
+ help
+ Broadcom BMIPS4380 processors.
+
+config CPU_BMIPS5000
+ bool "BMIPS5000"
+ depends on SYS_HAS_CPU_BMIPS5000
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select SWAP_IO_SPACE
+ select SYS_SUPPORTS_SMP
+ select SYS_SUPPORTS_HOTPLUG_CPU
+ select WEAK_ORDERING
+ help
+ Broadcom BMIPS5000 processors.
+
endchoice
if CPU_LOONGSON2F
config SYS_HAS_CPU_CAVIUM_OCTEON
bool
+config SYS_HAS_CPU_BMIPS3300
+ bool
+
+config SYS_HAS_CPU_BMIPS4350
+ bool
+
+config SYS_HAS_CPU_BMIPS4380
+ bool
+
+config SYS_HAS_CPU_BMIPS5000
+ bool
+
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
default "6"
depends on NEED_MULTIPLE_NODES
+config HW_PERF_EVENTS
+ bool "Enable hardware performance counter support for perf events"
+ depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
+ default y
+ help
+ Enable hardware performance counter support for perf events. If
+ disabled, perf events will use software events only.
+
source "mm/Kconfig"
config SMP
Normally, you will choose 'N' here.
+config DEBUG_STACKOVERFLOW
+ bool "Check for stack overflows"
+ depends on DEBUG_KERNEL
+ help
+ This option will cause messages to be printed if free stack space
+ drops below a certain limit(2GB on MIPS). The debugging option
+ provides another way to check stack overflow happened on kernel mode
+ stack usually caused by nested interruption.
+
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
endif
endif
-ifndef CONFIG_FUNCTION_TRACER
-cflags-y := -ffunction-sections
-endif
ifdef CONFIG_FUNCTION_GRAPH_TRACER
ifndef KBUILD_MCOUNT_RA_ADDRESS
ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
endif
+cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
/*
* Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2007 Eugene Konev <ejka@openwrt.org>
- * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
+ * Copyright (C) 2009-2010 Florian Fainelli <florian@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
return readl(gpio_in) & (1 << gpio);
}
+static int titan_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+ struct ar7_gpio_chip *gpch =
+ container_of(chip, struct ar7_gpio_chip, chip);
+ void __iomem *gpio_in0 = gpch->regs + TITAN_GPIO_INPUT_0;
+ void __iomem *gpio_in1 = gpch->regs + TITAN_GPIO_INPUT_1;
+
+ return readl(gpio >> 5 ? gpio_in1 : gpio_in0) & (1 << (gpio & 0x1f));
+}
+
static void ar7_gpio_set_value(struct gpio_chip *chip,
unsigned gpio, int value)
{
writel(tmp, gpio_out);
}
+static void titan_gpio_set_value(struct gpio_chip *chip,
+ unsigned gpio, int value)
+{
+ struct ar7_gpio_chip *gpch =
+ container_of(chip, struct ar7_gpio_chip, chip);
+ void __iomem *gpio_out0 = gpch->regs + TITAN_GPIO_OUTPUT_0;
+ void __iomem *gpio_out1 = gpch->regs + TITAN_GPIO_OUTPUT_1;
+ unsigned tmp;
+
+ tmp = readl(gpio >> 5 ? gpio_out1 : gpio_out0) & ~(1 << (gpio & 0x1f));
+ if (value)
+ tmp |= 1 << (gpio & 0x1f);
+ writel(tmp, gpio >> 5 ? gpio_out1 : gpio_out0);
+}
+
static int ar7_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
{
struct ar7_gpio_chip *gpch =
return 0;
}
+static int titan_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+ struct ar7_gpio_chip *gpch =
+ container_of(chip, struct ar7_gpio_chip, chip);
+ void __iomem *gpio_dir0 = gpch->regs + TITAN_GPIO_DIR_0;
+ void __iomem *gpio_dir1 = gpch->regs + TITAN_GPIO_DIR_1;
+
+ if (gpio >= TITAN_GPIO_MAX)
+ return -EINVAL;
+
+ writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) | (1 << (gpio & 0x1f)),
+ gpio >> 5 ? gpio_dir1 : gpio_dir0);
+ return 0;
+}
+
static int ar7_gpio_direction_output(struct gpio_chip *chip,
unsigned gpio, int value)
{
return 0;
}
+static int titan_gpio_direction_output(struct gpio_chip *chip,
+ unsigned gpio, int value)
+{
+ struct ar7_gpio_chip *gpch =
+ container_of(chip, struct ar7_gpio_chip, chip);
+ void __iomem *gpio_dir0 = gpch->regs + TITAN_GPIO_DIR_0;
+ void __iomem *gpio_dir1 = gpch->regs + TITAN_GPIO_DIR_1;
+
+ if (gpio >= TITAN_GPIO_MAX)
+ return -EINVAL;
+
+ titan_gpio_set_value(chip, gpio, value);
+ writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) & ~(1 <<
+ (gpio & 0x1f)), gpio >> 5 ? gpio_dir1 : gpio_dir0);
+
+ return 0;
+}
+
static struct ar7_gpio_chip ar7_gpio_chip = {
.chip = {
.label = "ar7-gpio",
}
};
-int ar7_gpio_enable(unsigned gpio)
+static struct ar7_gpio_chip titan_gpio_chip = {
+ .chip = {
+ .label = "titan-gpio",
+ .direction_input = titan_gpio_direction_input,
+ .direction_output = titan_gpio_direction_output,
+ .set = titan_gpio_set_value,
+ .get = titan_gpio_get_value,
+ .base = 0,
+ .ngpio = TITAN_GPIO_MAX,
+ }
+};
+
+static inline int ar7_gpio_enable_ar7(unsigned gpio)
{
void __iomem *gpio_en = ar7_gpio_chip.regs + AR7_GPIO_ENABLE;
return 0;
}
+
+static inline int ar7_gpio_enable_titan(unsigned gpio)
+{
+ void __iomem *gpio_en0 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_0;
+ void __iomem *gpio_en1 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_1;
+
+ writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) | (1 << (gpio & 0x1f)),
+ gpio >> 5 ? gpio_en1 : gpio_en0);
+
+ return 0;
+}
+
+int ar7_gpio_enable(unsigned gpio)
+{
+ return ar7_is_titan() ? ar7_gpio_enable_titan(gpio) :
+ ar7_gpio_enable_ar7(gpio);
+}
EXPORT_SYMBOL(ar7_gpio_enable);
-int ar7_gpio_disable(unsigned gpio)
+static inline int ar7_gpio_disable_ar7(unsigned gpio)
{
void __iomem *gpio_en = ar7_gpio_chip.regs + AR7_GPIO_ENABLE;
return 0;
}
+
+static inline int ar7_gpio_disable_titan(unsigned gpio)
+{
+ void __iomem *gpio_en0 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_0;
+ void __iomem *gpio_en1 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_1;
+
+ writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) & ~(1 << (gpio & 0x1f)),
+ gpio >> 5 ? gpio_en1 : gpio_en0);
+
+ return 0;
+}
+
+int ar7_gpio_disable(unsigned gpio)
+{
+ return ar7_is_titan() ? ar7_gpio_disable_titan(gpio) :
+ ar7_gpio_disable_ar7(gpio);
+}
EXPORT_SYMBOL(ar7_gpio_disable);
-static int __init ar7_gpio_init(void)
+struct titan_gpio_cfg {
+ u32 reg;
+ u32 shift;
+ u32 func;
+};
+
+static struct titan_gpio_cfg titan_gpio_table[] = {
+ /* reg, start bit, mux value */
+ {4, 24, 1},
+ {4, 26, 1},
+ {4, 28, 1},
+ {4, 30, 1},
+ {5, 6, 1},
+ {5, 8, 1},
+ {5, 10, 1},
+ {5, 12, 1},
+ {7, 14, 3},
+ {7, 16, 3},
+ {7, 18, 3},
+ {7, 20, 3},
+ {7, 22, 3},
+ {7, 26, 3},
+ {7, 28, 3},
+ {7, 30, 3},
+ {8, 0, 3},
+ {8, 2, 3},
+ {8, 4, 3},
+ {8, 10, 3},
+ {8, 14, 3},
+ {8, 16, 3},
+ {8, 18, 3},
+ {8, 20, 3},
+ {9, 8, 3},
+ {9, 10, 3},
+ {9, 12, 3},
+ {9, 14, 3},
+ {9, 18, 3},
+ {9, 20, 3},
+ {9, 24, 3},
+ {9, 26, 3},
+ {9, 28, 3},
+ {9, 30, 3},
+ {10, 0, 3},
+ {10, 2, 3},
+ {10, 8, 3},
+ {10, 10, 3},
+ {10, 12, 3},
+ {10, 14, 3},
+ {13, 12, 3},
+ {13, 14, 3},
+ {13, 16, 3},
+ {13, 18, 3},
+ {13, 24, 3},
+ {13, 26, 3},
+ {13, 28, 3},
+ {13, 30, 3},
+ {14, 2, 3},
+ {14, 6, 3},
+ {14, 8, 3},
+ {14, 12, 3}
+};
+
+static int titan_gpio_pinsel(unsigned gpio)
+{
+ struct titan_gpio_cfg gpio_cfg;
+ u32 mux_status, pin_sel_reg, tmp;
+ void __iomem *pin_sel = (void __iomem *)KSEG1ADDR(AR7_REGS_PINSEL);
+
+ if (gpio >= ARRAY_SIZE(titan_gpio_table))
+ return -EINVAL;
+
+ gpio_cfg = titan_gpio_table[gpio];
+ pin_sel_reg = gpio_cfg.reg - 1;
+
+ mux_status = (readl(pin_sel + pin_sel_reg) >> gpio_cfg.shift) & 0x3;
+
+ /* Check the mux status */
+ if (!((mux_status == 0) || (mux_status == gpio_cfg.func)))
+ return 0;
+
+ /* Set the pin sel value */
+ tmp = readl(pin_sel + pin_sel_reg);
+ tmp |= ((gpio_cfg.func & 0x3) << gpio_cfg.shift);
+ writel(tmp, pin_sel + pin_sel_reg);
+
+ return 0;
+}
+
+/* Perform minimal Titan GPIO configuration */
+static void titan_gpio_init(void)
+{
+ unsigned i;
+
+ for (i = 44; i < 48; i++) {
+ titan_gpio_pinsel(i);
+ ar7_gpio_enable_titan(i);
+ titan_gpio_direction_input(&titan_gpio_chip.chip, i);
+ }
+}
+
+int __init ar7_gpio_init(void)
{
int ret;
+ struct ar7_gpio_chip *gpch;
+ unsigned size;
+
+ if (!ar7_is_titan()) {
+ gpch = &ar7_gpio_chip;
+ size = 0x10;
+ } else {
+ gpch = &titan_gpio_chip;
+ size = 0x1f;
+ }
- ar7_gpio_chip.regs = ioremap_nocache(AR7_REGS_GPIO,
+ gpch->regs = ioremap_nocache(AR7_REGS_GPIO,
AR7_REGS_GPIO + 0x10);
- if (!ar7_gpio_chip.regs) {
- printk(KERN_ERR "ar7-gpio: failed to ioremap regs\n");
+ if (!gpch->regs) {
+ printk(KERN_ERR "%s: failed to ioremap regs\n",
+ gpch->chip.label);
return -ENOMEM;
}
- ret = gpiochip_add(&ar7_gpio_chip.chip);
+ ret = gpiochip_add(&gpch->chip);
if (ret) {
- printk(KERN_ERR "ar7-gpio: failed to add gpiochip\n");
+ printk(KERN_ERR "%s: failed to add gpiochip\n",
+ gpch->chip.label);
return ret;
}
- printk(KERN_INFO "ar7-gpio: registered %d GPIOs\n",
- ar7_gpio_chip.chip.ngpio);
+ printk(KERN_INFO "%s: registered %d GPIOs\n",
+ gpch->chip.label, gpch->chip.ngpio);
+
+ if (ar7_is_titan())
+ titan_gpio_init();
+
return ret;
}
-arch_initcall(ar7_gpio_init);
},
};
+static struct gpio_led titan_leds[] = {
+ { .name = "status", .gpio = 8, .active_low = 1, },
+ { .name = "wifi", .gpio = 13, .active_low = 1, },
+};
+
static struct gpio_led dsl502t_leds[] = {
{
.name = "status",
} else if (strstr(prid, "DG834")) {
ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
ar7_led_data.leds = dg834g_leds;
+ } else if (strstr(prid, "CYWM") || strstr(prid, "CYWL")) {
+ ar7_led_data.num_leds = ARRAY_SIZE(titan_leds);
+ ar7_led_data.leds = titan_leds;
}
}
return 0;
}
+static void __init titan_fixup_devices(void)
+{
+ /* Set vlynq0 data */
+ vlynq_low_data.reset_bit = 15;
+ vlynq_low_data.gpio_bit = 14;
+
+ /* Set vlynq1 data */
+ vlynq_high_data.reset_bit = 16;
+ vlynq_high_data.gpio_bit = 7;
+
+ /* Set vlynq0 resources */
+ vlynq_low_res[0].start = TITAN_REGS_VLYNQ0;
+ vlynq_low_res[0].end = TITAN_REGS_VLYNQ0 + 0xff;
+ vlynq_low_res[1].start = 33;
+ vlynq_low_res[1].end = 33;
+ vlynq_low_res[2].start = 0x0c000000;
+ vlynq_low_res[2].end = 0x0fffffff;
+ vlynq_low_res[3].start = 80;
+ vlynq_low_res[3].end = 111;
+
+ /* Set vlynq1 resources */
+ vlynq_high_res[0].start = TITAN_REGS_VLYNQ1;
+ vlynq_high_res[0].end = TITAN_REGS_VLYNQ1 + 0xff;
+ vlynq_high_res[1].start = 34;
+ vlynq_high_res[1].end = 34;
+ vlynq_high_res[2].start = 0x40000000;
+ vlynq_high_res[2].end = 0x43ffffff;
+ vlynq_high_res[3].start = 112;
+ vlynq_high_res[3].end = 143;
+
+ /* Set cpmac0 data */
+ cpmac_low_data.phy_mask = 0x40000000;
+
+ /* Set cpmac1 data */
+ cpmac_high_data.phy_mask = 0x80000000;
+
+ /* Set cpmac0 resources */
+ cpmac_low_res[0].start = TITAN_REGS_MAC0;
+ cpmac_low_res[0].end = TITAN_REGS_MAC0 + 0x7ff;
+
+ /* Set cpmac1 resources */
+ cpmac_high_res[0].start = TITAN_REGS_MAC1;
+ cpmac_high_res[0].end = TITAN_REGS_MAC1 + 0x7ff;
+}
+
static int __init ar7_register_devices(void)
{
void __iomem *bootcr;
if (res)
pr_warning("unable to register physmap-flash: %d\n", res);
+ if (ar7_is_titan())
+ titan_fixup_devices();
+
ar7_device_disable(vlynq_low_data.reset_bit);
res = platform_device_register(&vlynq_low);
if (res)
ar7_init_cmdline(fw_arg0, (char **)fw_arg1);
ar7_init_env((struct env_var *)fw_arg2);
console_config();
+
+ ar7_gpio_init();
}
#define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4)))
#include <asm/reboot.h>
#include <asm/mach-ar7/ar7.h>
#include <asm/mach-ar7/prom.h>
+#include <asm/mach-ar7/gpio.h>
static void ar7_machine_restart(char *command)
{
const char *get_system_type(void)
{
u16 chip_id = ar7_chip_id();
+ u16 titan_variant_id = titan_chip_id();
+
switch (chip_id) {
case AR7_CHIP_7100:
return "TI AR7 (TNETD7100)";
return "TI AR7 (TNETD7200)";
case AR7_CHIP_7300:
return "TI AR7 (TNETD7300)";
+ case AR7_CHIP_TITAN:
+ switch (titan_variant_id) {
+ case TITAN_CHIP_1050:
+ return "TI AR7 (TNETV1050)";
+ case TITAN_CHIP_1055:
+ return "TI AR7 (TNETV1055)";
+ case TITAN_CHIP_1056:
+ return "TI AR7 (TNETV1056)";
+ case TITAN_CHIP_1060:
+ return "TI AR7 (TNETV1060)";
+ }
default:
return "TI AR7 (unknown)";
}
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/cpu.h>
+#include <asm/cpu.h>
#include <asm/cpu-info.h>
+#include <asm/mipsregs.h>
#include <bcm63xx_cpu.h>
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
expected_cpu_id = 0;
switch (c->cputype) {
- /*
- * BCM6338 as the same PrId as BCM3302 see arch/mips/kernel/cpu-probe.c
- */
- case CPU_BCM3302:
- __cpu_name[cpu] = "Broadcom BCM6338";
- expected_cpu_id = BCM6338_CPU_ID;
- bcm63xx_regs_base = bcm96338_regs_base;
- bcm63xx_irqs = bcm96338_irqs;
+ case CPU_BMIPS3300:
+ if ((read_c0_prid() & 0xff00) == PRID_IMP_BMIPS3300_ALT) {
+ expected_cpu_id = BCM6348_CPU_ID;
+ bcm63xx_regs_base = bcm96348_regs_base;
+ bcm63xx_irqs = bcm96348_irqs;
+ } else {
+ __cpu_name[cpu] = "Broadcom BCM6338";
+ expected_cpu_id = BCM6338_CPU_ID;
+ bcm63xx_regs_base = bcm96338_regs_base;
+ bcm63xx_irqs = bcm96338_irqs;
+ }
break;
- case CPU_BCM6345:
+ case CPU_BMIPS32:
expected_cpu_id = BCM6345_CPU_ID;
bcm63xx_regs_base = bcm96345_regs_base;
bcm63xx_irqs = bcm96345_irqs;
break;
- case CPU_BCM6348:
- expected_cpu_id = BCM6348_CPU_ID;
- bcm63xx_regs_base = bcm96348_regs_base;
- bcm63xx_irqs = bcm96348_irqs;
- break;
- case CPU_BCM6358:
+ case CPU_BMIPS4350:
expected_cpu_id = BCM6358_CPU_ID;
bcm63xx_regs_base = bcm96358_regs_base;
bcm63xx_irqs = bcm96358_irqs;
depends on CPU_CAVIUM_OCTEON
default "y"
+config CAVIUM_CN63XXP1
+ bool "Enable CN63XXP1 errata worarounds"
+ depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
+ default "n"
+ help
+ The CN63XXP1 chip requires build time workarounds to
+ function reliably, select this option to enable them. These
+ workarounds will cause a slight decrease in performance on
+ non-CN63XXP1 hardware, so it is recommended to select "n"
+ unless it is known the workarounds are needed.
+
config CAVIUM_OCTEON_2ND_KERNEL
bool "Build the kernel to be used as a 2nd kernel on the same chip"
depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
config CAVIUM_OCTEON_HELPER
def_bool y
depends on OCTEON_ETHERNET || PCI
+
+config IOMMU_HELPER
+ bool
+
+config NEED_SG_DMA_LENGTH
+ bool
+
+config SWIOTLB
+ def_bool y
+ depends on CPU_CAVIUM_OCTEON
+ select IOMMU_HELPER
+ select NEED_SG_DMA_LENGTH
* for more details.
*
* Copyright (C) 2007 by Ralf Baechle
+ * Copyright (C) 2009, 2010 Cavium Networks, Inc.
*/
#include <linux/clocksource.h>
#include <linux/init.h>
+#include <linux/smp.h>
+#include <asm/cpu-info.h>
#include <asm/time.h>
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-ipd-defs.h>
+#include <asm/octeon/cvmx-mio-defs.h>
/*
* Set the current core's cvmcount counter to the value of the
* on-line. This allows for a read from a local cpu register to
* access a synchronized counter.
*
+ * On CPU_CAVIUM_OCTEON2 the IPD_CLK_COUNT is scaled by rdiv/sdiv.
*/
void octeon_init_cvmcount(void)
{
unsigned long flags;
unsigned loops = 2;
+ u64 f = 0;
+ u64 rdiv = 0;
+ u64 sdiv = 0;
+ 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;
+ }
+
/* Clobber loops so GCC will not unroll the following while loop. */
asm("" : "+r" (loops));
* Loop several times so we are executing from the cache,
* which should give more deterministic timing.
*/
- while (loops--)
- write_c0_cvmcount(cvmx_read_csr(CVMX_IPD_CLK_COUNT));
+ while (loops--) {
+ u64 ipd_clk_count = cvmx_read_csr(CVMX_IPD_CLK_COUNT);
+ if (rdiv != 0) {
+ ipd_clk_count *= rdiv;
+ if (f != 0) {
+ asm("dmultu\t%[cnt],%[f]\n\t"
+ "mfhi\t%[cnt]"
+ : [cnt] "+r" (ipd_clk_count),
+ [f] "=r" (f)
+ : : "hi", "lo");
+ }
+ }
+ write_c0_cvmcount(ipd_clk_count);
+ }
local_irq_restore(flags);
}
void __init plat_time_init(void)
{
clocksource_mips.rating = 300;
- clocksource_set_clock(&clocksource_mips, mips_hpt_frequency);
+ clocksource_set_clock(&clocksource_mips, octeon_get_clock_rate());
clocksource_register(&clocksource_mips);
}
* Copyright (C) 2005 Ilya A. Volynets-Evenbakh <ilya@total-knowledge.com>
* swiped from i386, and cloned for MIPS by Geert, polished by Ralf.
* IP32 changes by Ilya.
- * Cavium Networks: Create new dma setup for Cavium Networks Octeon based on
- * the kernels original.
+ * Copyright (C) 2010 Cavium Networks, Inc.
*/
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/string.h>
#include <linux/dma-mapping.h>
-#include <linux/platform_device.h>
#include <linux/scatterlist.h>
+#include <linux/bootmem.h>
+#include <linux/swiotlb.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
-#include <linux/cache.h>
-#include <linux/io.h>
+#include <asm/bootinfo.h>
#include <asm/octeon/octeon.h>
+
+#ifdef CONFIG_PCI
+#include <asm/octeon/pci-octeon.h>
#include <asm/octeon/cvmx-npi-defs.h>
#include <asm/octeon/cvmx-pci-defs.h>
-#include <dma-coherence.h>
+static dma_addr_t octeon_hole_phys_to_dma(phys_addr_t paddr)
+{
+ if (paddr >= CVMX_PCIE_BAR1_PHYS_BASE && paddr < (CVMX_PCIE_BAR1_PHYS_BASE + CVMX_PCIE_BAR1_PHYS_SIZE))
+ return paddr - CVMX_PCIE_BAR1_PHYS_BASE + CVMX_PCIE_BAR1_RC_BASE;
+ else
+ return paddr;
+}
-#ifdef CONFIG_PCI
-#include <asm/octeon/pci-octeon.h>
-#endif
+static phys_addr_t octeon_hole_dma_to_phys(dma_addr_t daddr)
+{
+ if (daddr >= CVMX_PCIE_BAR1_RC_BASE)
+ return daddr + CVMX_PCIE_BAR1_PHYS_BASE - CVMX_PCIE_BAR1_RC_BASE;
+ else
+ return daddr;
+}
+
+static dma_addr_t octeon_gen1_phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+ if (paddr >= 0x410000000ull && paddr < 0x420000000ull)
+ paddr -= 0x400000000ull;
+ return octeon_hole_phys_to_dma(paddr);
+}
-#define BAR2_PCI_ADDRESS 0x8000000000ul
+static phys_addr_t octeon_gen1_dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+ daddr = octeon_hole_dma_to_phys(daddr);
-struct bar1_index_state {
- int16_t ref_count; /* Number of PCI mappings using this index */
- uint16_t address_bits; /* Upper bits of physical address. This is
- shifted 22 bits */
-};
+ if (daddr >= 0x10000000ull && daddr < 0x20000000ull)
+ daddr += 0x400000000ull;
-#ifdef CONFIG_PCI
-static DEFINE_RAW_SPINLOCK(bar1_lock);
-static struct bar1_index_state bar1_state[32];
-#endif
+ return daddr;
+}
-dma_addr_t octeon_map_dma_mem(struct device *dev, void *ptr, size_t size)
+static dma_addr_t octeon_big_phys_to_dma(struct device *dev, phys_addr_t paddr)
{
-#ifndef CONFIG_PCI
- /* Without PCI/PCIe this function can be called for Octeon internal
- devices such as USB. These devices all support 64bit addressing */
+ if (paddr >= 0x410000000ull && paddr < 0x420000000ull)
+ paddr -= 0x400000000ull;
+
+ /* Anything in the BAR1 hole or above goes via BAR2 */
+ if (paddr >= 0xf0000000ull)
+ paddr = OCTEON_BAR2_PCI_ADDRESS + paddr;
+
+ return paddr;
+}
+
+static phys_addr_t octeon_big_dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+ if (daddr >= OCTEON_BAR2_PCI_ADDRESS)
+ daddr -= OCTEON_BAR2_PCI_ADDRESS;
+
+ if (daddr >= 0x10000000ull && daddr < 0x20000000ull)
+ daddr += 0x400000000ull;
+ return daddr;
+}
+
+static dma_addr_t octeon_small_phys_to_dma(struct device *dev,
+ phys_addr_t paddr)
+{
+ if (paddr >= 0x410000000ull && paddr < 0x420000000ull)
+ paddr -= 0x400000000ull;
+
+ /* Anything not in the BAR1 range goes via BAR2 */
+ if (paddr >= octeon_bar1_pci_phys && paddr < octeon_bar1_pci_phys + 0x8000000ull)
+ paddr = paddr - octeon_bar1_pci_phys;
+ else
+ paddr = OCTEON_BAR2_PCI_ADDRESS + paddr;
+
+ return paddr;
+}
+
+static phys_addr_t octeon_small_dma_to_phys(struct device *dev,
+ dma_addr_t daddr)
+{
+ if (daddr >= OCTEON_BAR2_PCI_ADDRESS)
+ daddr -= OCTEON_BAR2_PCI_ADDRESS;
+ else
+ daddr += octeon_bar1_pci_phys;
+
+ if (daddr >= 0x10000000ull && daddr < 0x20000000ull)
+ daddr += 0x400000000ull;
+ return daddr;
+}
+
+#endif /* CONFIG_PCI */
+
+static dma_addr_t octeon_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size, enum dma_data_direction direction,
+ struct dma_attrs *attrs)
+{
+ dma_addr_t daddr = swiotlb_map_page(dev, page, offset, size,
+ direction, attrs);
mb();
- return virt_to_phys(ptr);
-#else
- unsigned long flags;
- uint64_t dma_mask;
- int64_t start_index;
- dma_addr_t result = -1;
- uint64_t physical = virt_to_phys(ptr);
- int64_t index;
+ return daddr;
+}
+
+static int octeon_dma_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction direction, struct dma_attrs *attrs)
+{
+ int r = swiotlb_map_sg_attrs(dev, sg, nents, direction, attrs);
mb();
- /*
- * Use the DMA masks to determine the allowed memory
- * region. For us it doesn't limit the actual memory, just the
- * address visible over PCI. Devices with limits need to use
- * lower indexed Bar1 entries.
- */
- if (dev) {
- dma_mask = dev->coherent_dma_mask;
- if (dev->dma_mask)
- dma_mask = *dev->dma_mask;
- } else {
- dma_mask = 0xfffffffful;
- }
+ return r;
+}
- /*
- * Platform devices, such as the internal USB, skip all
- * translation and use Octeon physical addresses directly.
- */
- if (!dev || dev->bus == &platform_bus_type)
- return physical;
+static void octeon_dma_sync_single_for_device(struct device *dev,
+ dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
+{
+ swiotlb_sync_single_for_device(dev, dma_handle, size, direction);
+ mb();
+}
- switch (octeon_dma_bar_type) {
- case OCTEON_DMA_BAR_TYPE_PCIE:
- if (unlikely(physical < (16ul << 10)))
- panic("dma_map_single: Not allowed to map first 16KB."
- " It interferes with BAR0 special area\n");
- else if ((physical + size >= (256ul << 20)) &&
- (physical < (512ul << 20)))
- panic("dma_map_single: Not allowed to map bootbus\n");
- else if ((physical + size >= 0x400000000ull) &&
- physical < 0x410000000ull)
- panic("dma_map_single: "
- "Attempt to map illegal memory address 0x%llx\n",
- physical);
- else if (physical >= 0x420000000ull)
- panic("dma_map_single: "
- "Attempt to map illegal memory address 0x%llx\n",
- physical);
- else if (physical >= CVMX_PCIE_BAR1_PHYS_BASE &&
- physical + size < (CVMX_PCIE_BAR1_PHYS_BASE + CVMX_PCIE_BAR1_PHYS_SIZE)) {
- result = physical - CVMX_PCIE_BAR1_PHYS_BASE + CVMX_PCIE_BAR1_RC_BASE;
-
- if (((result+size-1) & dma_mask) != result+size-1)
- panic("dma_map_single: Attempt to map address 0x%llx-0x%llx, which can't be accessed according to the dma mask 0x%llx\n",
- physical, physical+size-1, dma_mask);
- goto done;
- }
-
- /* The 2nd 256MB is mapped at 256<<20 instead of 0x410000000 */
- if ((physical >= 0x410000000ull) && physical < 0x420000000ull)
- result = physical - 0x400000000ull;
- else
- result = physical;
- if (((result+size-1) & dma_mask) != result+size-1)
- panic("dma_map_single: Attempt to map address "
- "0x%llx-0x%llx, which can't be accessed "
- "according to the dma mask 0x%llx\n",
- physical, physical+size-1, dma_mask);
- goto done;
+static void octeon_dma_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sg, int nelems, enum dma_data_direction direction)
+{
+ swiotlb_sync_sg_for_device(dev, sg, nelems, direction);
+ mb();
+}
- case OCTEON_DMA_BAR_TYPE_BIG:
-#ifdef CONFIG_64BIT
- /* If the device supports 64bit addressing, then use BAR2 */
- if (dma_mask > BAR2_PCI_ADDRESS) {
- result = physical + BAR2_PCI_ADDRESS;
- goto done;
- }
-#endif
- if (unlikely(physical < (4ul << 10))) {
- panic("dma_map_single: Not allowed to map first 4KB. "
- "It interferes with BAR0 special area\n");
- } else if (physical < (256ul << 20)) {
- if (unlikely(physical + size > (256ul << 20)))
- panic("dma_map_single: Requested memory spans "
- "Bar0 0:256MB and bootbus\n");
- result = physical;
- goto done;
- } else if (unlikely(physical < (512ul << 20))) {
- panic("dma_map_single: Not allowed to map bootbus\n");
- } else if (physical < (2ul << 30)) {
- if (unlikely(physical + size > (2ul << 30)))
- panic("dma_map_single: Requested memory spans "
- "Bar0 512MB:2GB and BAR1\n");
- result = physical;
- goto done;
- } else if (physical < (2ul << 30) + (128 << 20)) {
- /* Fall through */
- } else if (physical <
- (4ul << 30) - (OCTEON_PCI_BAR1_HOLE_SIZE << 20)) {
- if (unlikely
- (physical + size >
- (4ul << 30) - (OCTEON_PCI_BAR1_HOLE_SIZE << 20)))
- panic("dma_map_single: Requested memory "
- "extends past Bar1 (4GB-%luMB)\n",
- OCTEON_PCI_BAR1_HOLE_SIZE);
- result = physical;
- goto done;
- } else if ((physical >= 0x410000000ull) &&
- (physical < 0x420000000ull)) {
- if (unlikely(physical + size > 0x420000000ull))
- panic("dma_map_single: Requested memory spans "
- "non existant memory\n");
- /* BAR0 fixed mapping 256MB:512MB ->
- * 16GB+256MB:16GB+512MB */
- result = physical - 0x400000000ull;
- goto done;
- } else {
- /* Continued below switch statement */
- }
- break;
+static void *octeon_dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp)
+{
+ void *ret;
- case OCTEON_DMA_BAR_TYPE_SMALL:
-#ifdef CONFIG_64BIT
- /* If the device supports 64bit addressing, then use BAR2 */
- if (dma_mask > BAR2_PCI_ADDRESS) {
- result = physical + BAR2_PCI_ADDRESS;
- goto done;
- }
+ if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
+ return ret;
+
+ /* ignore region specifiers */
+ gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
+
+#ifdef CONFIG_ZONE_DMA
+ if (dev == NULL)
+ gfp |= __GFP_DMA;
+ else if (dev->coherent_dma_mask <= DMA_BIT_MASK(24))
+ gfp |= __GFP_DMA;
+ else
#endif
- /* Continued below switch statement */
- break;
+#ifdef CONFIG_ZONE_DMA32
+ if (dev->coherent_dma_mask <= DMA_BIT_MASK(32))
+ gfp |= __GFP_DMA32;
+ else
+#endif
+ ;
- default:
- panic("dma_map_single: Invalid octeon_dma_bar_type\n");
- }
+ /* Don't invoke OOM killer */
+ gfp |= __GFP_NORETRY;
- /* Don't allow mapping to span multiple Bar entries. The hardware guys
- won't guarantee that DMA across boards work */
- if (unlikely((physical >> 22) != ((physical + size - 1) >> 22)))
- panic("dma_map_single: "
- "Requested memory spans more than one Bar1 entry\n");
+ ret = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
- if (octeon_dma_bar_type == OCTEON_DMA_BAR_TYPE_BIG)
- start_index = 31;
- else if (unlikely(dma_mask < (1ul << 27)))
- start_index = (dma_mask >> 22);
- else
- start_index = 31;
-
- /* Only one processor can access the Bar register at once */
- raw_spin_lock_irqsave(&bar1_lock, flags);
-
- /* Look through Bar1 for existing mapping that will work */
- for (index = start_index; index >= 0; index--) {
- if ((bar1_state[index].address_bits == physical >> 22) &&
- (bar1_state[index].ref_count)) {
- /* An existing mapping will work, use it */
- bar1_state[index].ref_count++;
- if (unlikely(bar1_state[index].ref_count < 0))
- panic("dma_map_single: "
- "Bar1[%d] reference count overflowed\n",
- (int) index);
- result = (index << 22) | (physical & ((1 << 22) - 1));
- /* Large BAR1 is offset at 2GB */
- if (octeon_dma_bar_type == OCTEON_DMA_BAR_TYPE_BIG)
- result += 2ul << 30;
- goto done_unlock;
- }
- }
+ mb();
- /* No existing mappings, look for a free entry */
- for (index = start_index; index >= 0; index--) {
- if (unlikely(bar1_state[index].ref_count == 0)) {
- union cvmx_pci_bar1_indexx bar1_index;
- /* We have a free entry, use it */
- bar1_state[index].ref_count = 1;
- bar1_state[index].address_bits = physical >> 22;
- bar1_index.u32 = 0;
- /* Address bits[35:22] sent to L2C */
- bar1_index.s.addr_idx = physical >> 22;
- /* Don't put PCI accesses in L2. */
- bar1_index.s.ca = 1;
- /* Endian Swap Mode */
- bar1_index.s.end_swp = 1;
- /* Set '1' when the selected address range is valid. */
- bar1_index.s.addr_v = 1;
- octeon_npi_write32(CVMX_NPI_PCI_BAR1_INDEXX(index),
- bar1_index.u32);
- /* An existing mapping will work, use it */
- result = (index << 22) | (physical & ((1 << 22) - 1));
- /* Large BAR1 is offset at 2GB */
- if (octeon_dma_bar_type == OCTEON_DMA_BAR_TYPE_BIG)
- result += 2ul << 30;
- goto done_unlock;
- }
- }
+ return ret;
+}
- pr_err("dma_map_single: "
- "Can't find empty BAR1 index for physical mapping 0x%llx\n",
- (unsigned long long) physical);
+static void octeon_dma_free_coherent(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle)
+{
+ int order = get_order(size);
-done_unlock:
- raw_spin_unlock_irqrestore(&bar1_lock, flags);
-done:
- pr_debug("dma_map_single 0x%llx->0x%llx\n", physical, result);
- return result;
-#endif
+ if (dma_release_from_coherent(dev, order, vaddr))
+ return;
+
+ swiotlb_free_coherent(dev, size, vaddr, dma_handle);
}
-void octeon_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr)
+static dma_addr_t octeon_unity_phys_to_dma(struct device *dev, phys_addr_t paddr)
{
-#ifndef CONFIG_PCI
- /*
- * Without PCI/PCIe this function can be called for Octeon internal
- * devices such as USB. These devices all support 64bit addressing.
- */
- return;
-#else
- unsigned long flags;
- uint64_t index;
+ return paddr;
+}
+static phys_addr_t octeon_unity_dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+ return daddr;
+}
+
+struct octeon_dma_map_ops {
+ struct dma_map_ops dma_map_ops;
+ dma_addr_t (*phys_to_dma)(struct device *dev, phys_addr_t paddr);
+ phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr);
+};
+
+dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+ struct octeon_dma_map_ops *ops = container_of(get_dma_ops(dev),
+ struct octeon_dma_map_ops,
+ dma_map_ops);
+
+ return ops->phys_to_dma(dev, paddr);
+}
+EXPORT_SYMBOL(phys_to_dma);
+
+phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+{
+ struct octeon_dma_map_ops *ops = container_of(get_dma_ops(dev),
+ struct octeon_dma_map_ops,
+ dma_map_ops);
+
+ return ops->dma_to_phys(dev, daddr);
+}
+EXPORT_SYMBOL(dma_to_phys);
+
+static struct octeon_dma_map_ops octeon_linear_dma_map_ops = {
+ .dma_map_ops = {
+ .alloc_coherent = octeon_dma_alloc_coherent,
+ .free_coherent = octeon_dma_free_coherent,
+ .map_page = octeon_dma_map_page,
+ .unmap_page = swiotlb_unmap_page,
+ .map_sg = octeon_dma_map_sg,
+ .unmap_sg = swiotlb_unmap_sg_attrs,
+ .sync_single_for_cpu = swiotlb_sync_single_for_cpu,
+ .sync_single_for_device = octeon_dma_sync_single_for_device,
+ .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
+ .sync_sg_for_device = octeon_dma_sync_sg_for_device,
+ .mapping_error = swiotlb_dma_mapping_error,
+ .dma_supported = swiotlb_dma_supported
+ },
+ .phys_to_dma = octeon_unity_phys_to_dma,
+ .dma_to_phys = octeon_unity_dma_to_phys
+};
+
+char *octeon_swiotlb;
+
+void __init plat_swiotlb_setup(void)
+{
+ int i;
+ phys_t max_addr;
+ phys_t addr_size;
+ size_t swiotlbsize;
+ unsigned long swiotlb_nslabs;
+
+ max_addr = 0;
+ addr_size = 0;
+
+ for (i = 0 ; i < boot_mem_map.nr_map; i++) {
+ struct boot_mem_map_entry *e = &boot_mem_map.map[i];
+ if (e->type != BOOT_MEM_RAM)
+ continue;
+
+ /* These addresses map low for PCI. */
+ if (e->addr > 0x410000000ull)
+ continue;
+
+ addr_size += e->size;
+
+ if (max_addr < e->addr + e->size)
+ max_addr = e->addr + e->size;
+
+ }
+
+ swiotlbsize = PAGE_SIZE;
+
+#ifdef CONFIG_PCI
/*
- * Platform devices, such as the internal USB, skip all
- * translation and use Octeon physical addresses directly.
+ * For OCTEON_DMA_BAR_TYPE_SMALL, size the iotlb at 1/4 memory
+ * size to a maximum of 64MB
*/
- if (dev->bus == &platform_bus_type)
- return;
+ if (OCTEON_IS_MODEL(OCTEON_CN31XX)
+ || OCTEON_IS_MODEL(OCTEON_CN38XX_PASS2)) {
+ swiotlbsize = addr_size / 4;
+ if (swiotlbsize > 64 * (1<<20))
+ swiotlbsize = 64 * (1<<20);
+ } else if (max_addr > 0xf0000000ul) {
+ /*
+ * Otherwise only allocate a big iotlb if there is
+ * memory past the BAR1 hole.
+ */
+ swiotlbsize = 64 * (1<<20);
+ }
+#endif
+ swiotlb_nslabs = swiotlbsize >> IO_TLB_SHIFT;
+ swiotlb_nslabs = ALIGN(swiotlb_nslabs, IO_TLB_SEGSIZE);
+ swiotlbsize = swiotlb_nslabs << IO_TLB_SHIFT;
+
+ octeon_swiotlb = alloc_bootmem_low_pages(swiotlbsize);
+ swiotlb_init_with_tbl(octeon_swiotlb, swiotlb_nslabs, 1);
+
+ mips_dma_map_ops = &octeon_linear_dma_map_ops.dma_map_ops;
+}
+
+#ifdef CONFIG_PCI
+static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = {
+ .dma_map_ops = {
+ .alloc_coherent = octeon_dma_alloc_coherent,
+ .free_coherent = octeon_dma_free_coherent,
+ .map_page = octeon_dma_map_page,
+ .unmap_page = swiotlb_unmap_page,
+ .map_sg = octeon_dma_map_sg,
+ .unmap_sg = swiotlb_unmap_sg_attrs,
+ .sync_single_for_cpu = swiotlb_sync_single_for_cpu,
+ .sync_single_for_device = octeon_dma_sync_single_for_device,
+ .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
+ .sync_sg_for_device = octeon_dma_sync_sg_for_device,
+ .mapping_error = swiotlb_dma_mapping_error,
+ .dma_supported = swiotlb_dma_supported
+ },
+};
+
+struct dma_map_ops *octeon_pci_dma_map_ops;
+
+void __init octeon_pci_dma_init(void)
+{
switch (octeon_dma_bar_type) {
case OCTEON_DMA_BAR_TYPE_PCIE:
- /* Nothing to do, all mappings are static */
- goto done;
-
+ _octeon_pci_dma_map_ops.phys_to_dma = octeon_gen1_phys_to_dma;
+ _octeon_pci_dma_map_ops.dma_to_phys = octeon_gen1_dma_to_phys;
+ break;
case OCTEON_DMA_BAR_TYPE_BIG:
-#ifdef CONFIG_64BIT
- /* Nothing to do for addresses using BAR2 */
- if (dma_addr >= BAR2_PCI_ADDRESS)
- goto done;
-#endif
- if (unlikely(dma_addr < (4ul << 10)))
- panic("dma_unmap_single: Unexpect DMA address 0x%llx\n",
- dma_addr);
- else if (dma_addr < (2ul << 30))
- /* Nothing to do for addresses using BAR0 */
- goto done;
- else if (dma_addr < (2ul << 30) + (128ul << 20))
- /* Need to unmap, fall through */
- index = (dma_addr - (2ul << 30)) >> 22;
- else if (dma_addr <
- (4ul << 30) - (OCTEON_PCI_BAR1_HOLE_SIZE << 20))
- goto done; /* Nothing to do for the rest of BAR1 */
- else
- panic("dma_unmap_single: Unexpect DMA address 0x%llx\n",
- dma_addr);
- /* Continued below switch statement */
+ _octeon_pci_dma_map_ops.phys_to_dma = octeon_big_phys_to_dma;
+ _octeon_pci_dma_map_ops.dma_to_phys = octeon_big_dma_to_phys;
break;
-
case OCTEON_DMA_BAR_TYPE_SMALL:
-#ifdef CONFIG_64BIT
- /* Nothing to do for addresses using BAR2 */
- if (dma_addr >= BAR2_PCI_ADDRESS)
- goto done;
-#endif
- index = dma_addr >> 22;
- /* Continued below switch statement */
+ _octeon_pci_dma_map_ops.phys_to_dma = octeon_small_phys_to_dma;
+ _octeon_pci_dma_map_ops.dma_to_phys = octeon_small_dma_to_phys;
break;
-
default:
- panic("dma_unmap_single: Invalid octeon_dma_bar_type\n");
+ BUG();
}
-
- if (unlikely(index > 31))
- panic("dma_unmap_single: "
- "Attempt to unmap an invalid address (0x%llx)\n",
- dma_addr);
-
- raw_spin_lock_irqsave(&bar1_lock, flags);
- bar1_state[index].ref_count--;
- if (bar1_state[index].ref_count == 0)
- octeon_npi_write32(CVMX_NPI_PCI_BAR1_INDEXX(index), 0);
- else if (unlikely(bar1_state[index].ref_count < 0))
- panic("dma_unmap_single: Bar1[%u] reference count < 0\n",
- (int) index);
- raw_spin_unlock_irqrestore(&bar1_lock, flags);
-done:
- pr_debug("dma_unmap_single 0x%llx\n", dma_addr);
- return;
-#endif
+ octeon_pci_dma_map_ops = &_octeon_pci_dma_map_ops.dma_map_ops;
}
+#endif /* CONFIG_PCI */
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
- * Copyright (c) 2003-2008 Cavium Networks
+ * Copyright (c) 2003-2010 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
***********************license end**************************************/
/*
- * Implementation of the Level 2 Cache (L2C) control, measurement, and
- * debugging facilities.
+ * Implementation of the Level 2 Cache (L2C) control,
+ * measurement, and debugging facilities.
*/
#include <asm/octeon/cvmx.h>
* if multiple applications or operating systems are running, then it
* is up to the user program to coordinate between them.
*/
-static cvmx_spinlock_t cvmx_l2c_spinlock;
-
-static inline int l2_size_half(void)
-{
- uint64_t val = cvmx_read_csr(CVMX_L2D_FUS3);
- return !!(val & (1ull << 34));
-}
+cvmx_spinlock_t cvmx_l2c_spinlock;
int cvmx_l2c_get_core_way_partition(uint32_t core)
{
if (core >= cvmx_octeon_num_cores())
return -1;
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX))
+ return cvmx_read_csr(CVMX_L2C_WPAR_PPX(core)) & 0xffff;
+
/*
* Use the lower two bits of the coreNumber to determine the
* bit offset of the UMSK[] field in the L2C_SPAR register.
switch (core & 0xC) {
case 0x0:
- return (cvmx_read_csr(CVMX_L2C_SPAR0) & (0xFF << field)) >>
- field;
+ return (cvmx_read_csr(CVMX_L2C_SPAR0) & (0xFF << field)) >> field;
case 0x4:
- return (cvmx_read_csr(CVMX_L2C_SPAR1) & (0xFF << field)) >>
- field;
+ return (cvmx_read_csr(CVMX_L2C_SPAR1) & (0xFF << field)) >> field;
case 0x8:
- return (cvmx_read_csr(CVMX_L2C_SPAR2) & (0xFF << field)) >>
- field;
+ return (cvmx_read_csr(CVMX_L2C_SPAR2) & (0xFF << field)) >> field;
case 0xC:
- return (cvmx_read_csr(CVMX_L2C_SPAR3) & (0xFF << field)) >>
- field;
+ return (cvmx_read_csr(CVMX_L2C_SPAR3) & (0xFF << field)) >> field;
}
return 0;
}
mask &= valid_mask;
- /* A UMSK setting which blocks all L2C Ways is an error. */
- if (mask == valid_mask)
+ /* A UMSK setting which blocks all L2C Ways is an error on some chips */
+ if (mask == valid_mask && !OCTEON_IS_MODEL(OCTEON_CN63XX))
return -1;
/* Validate the core number */
if (core >= cvmx_octeon_num_cores())
return -1;
- /* Check to make sure current mask & new mask don't block all ways */
- if (((mask | cvmx_l2c_get_core_way_partition(core)) & valid_mask) ==
- valid_mask)
- return -1;
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ cvmx_write_csr(CVMX_L2C_WPAR_PPX(core), mask);
+ return 0;
+ }
- /* Use the lower two bits of core to determine the bit offset of the
+ /*
+ * Use the lower two bits of core to determine the bit offset of the
* UMSK[] field in the L2C_SPAR register.
*/
field = (core & 0x3) * 8;
- /* Assign the new mask setting to the UMSK[] field in the appropriate
+ /*
+ * Assign the new mask setting to the UMSK[] field in the appropriate
* L2C_SPAR register based on the core_num.
*
*/
switch (core & 0xC) {
case 0x0:
cvmx_write_csr(CVMX_L2C_SPAR0,
- (cvmx_read_csr(CVMX_L2C_SPAR0) &
- ~(0xFF << field)) | mask << field);
+ (cvmx_read_csr(CVMX_L2C_SPAR0) & ~(0xFF << field)) |
+ mask << field);
break;
case 0x4:
cvmx_write_csr(CVMX_L2C_SPAR1,
- (cvmx_read_csr(CVMX_L2C_SPAR1) &
- ~(0xFF << field)) | mask << field);
+ (cvmx_read_csr(CVMX_L2C_SPAR1) & ~(0xFF << field)) |
+ mask << field);
break;
case 0x8:
cvmx_write_csr(CVMX_L2C_SPAR2,
- (cvmx_read_csr(CVMX_L2C_SPAR2) &
- ~(0xFF << field)) | mask << field);
+ (cvmx_read_csr(CVMX_L2C_SPAR2) & ~(0xFF << field)) |
+ mask << field);
break;
case 0xC:
cvmx_write_csr(CVMX_L2C_SPAR3,
- (cvmx_read_csr(CVMX_L2C_SPAR3) &
- ~(0xFF << field)) | mask << field);
+ (cvmx_read_csr(CVMX_L2C_SPAR3) & ~(0xFF << field)) |
+ mask << field);
break;
}
return 0;
{
uint32_t valid_mask;
- valid_mask = 0xff;
-
- if (OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN38XX)) {
- if (l2_size_half())
- valid_mask = 0xf;
- } else if (l2_size_half())
- valid_mask = 0x3;
-
+ valid_mask = (0x1 << cvmx_l2c_get_num_assoc()) - 1;
mask &= valid_mask;
- /* A UMSK setting which blocks all L2C Ways is an error. */
- if (mask == valid_mask)
- return -1;
- /* Check to make sure current mask & new mask don't block all ways */
- if (((mask | cvmx_l2c_get_hw_way_partition()) & valid_mask) ==
- valid_mask)
+ /* A UMSK setting which blocks all L2C Ways is an error on some chips */
+ if (mask == valid_mask && !OCTEON_IS_MODEL(OCTEON_CN63XX))
return -1;
- cvmx_write_csr(CVMX_L2C_SPAR4,
- (cvmx_read_csr(CVMX_L2C_SPAR4) & ~0xFF) | mask);
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX))
+ cvmx_write_csr(CVMX_L2C_WPAR_IOBX(0), mask);
+ else
+ cvmx_write_csr(CVMX_L2C_SPAR4,
+ (cvmx_read_csr(CVMX_L2C_SPAR4) & ~0xFF) | mask);
return 0;
}
int cvmx_l2c_get_hw_way_partition(void)
{
- return cvmx_read_csr(CVMX_L2C_SPAR4) & (0xFF);
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX))
+ return cvmx_read_csr(CVMX_L2C_WPAR_IOBX(0)) & 0xffff;
+ else
+ return cvmx_read_csr(CVMX_L2C_SPAR4) & (0xFF);
}
void cvmx_l2c_config_perf(uint32_t counter, enum cvmx_l2c_event event,
uint32_t clear_on_read)
{
- union cvmx_l2c_pfctl pfctl;
+ if (OCTEON_IS_MODEL(OCTEON_CN5XXX) || OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
+ union cvmx_l2c_pfctl pfctl;
- pfctl.u64 = cvmx_read_csr(CVMX_L2C_PFCTL);
+ pfctl.u64 = cvmx_read_csr(CVMX_L2C_PFCTL);
- switch (counter) {
- case 0:
- pfctl.s.cnt0sel = event;
- pfctl.s.cnt0ena = 1;
- if (!cvmx_octeon_is_pass1())
+ switch (counter) {
+ case 0:
+ pfctl.s.cnt0sel = event;
+ pfctl.s.cnt0ena = 1;
pfctl.s.cnt0rdclr = clear_on_read;
- break;
- case 1:
- pfctl.s.cnt1sel = event;
- pfctl.s.cnt1ena = 1;
- if (!cvmx_octeon_is_pass1())
+ break;
+ case 1:
+ pfctl.s.cnt1sel = event;
+ pfctl.s.cnt1ena = 1;
pfctl.s.cnt1rdclr = clear_on_read;
- break;
- case 2:
- pfctl.s.cnt2sel = event;
- pfctl.s.cnt2ena = 1;
- if (!cvmx_octeon_is_pass1())
+ break;
+ case 2:
+ pfctl.s.cnt2sel = event;
+ pfctl.s.cnt2ena = 1;
pfctl.s.cnt2rdclr = clear_on_read;
- break;
- case 3:
- default:
- pfctl.s.cnt3sel = event;
- pfctl.s.cnt3ena = 1;
- if (!cvmx_octeon_is_pass1())
+ break;
+ case 3:
+ default:
+ pfctl.s.cnt3sel = event;
+ pfctl.s.cnt3ena = 1;
pfctl.s.cnt3rdclr = clear_on_read;
- break;
- }
+ break;
+ }
- cvmx_write_csr(CVMX_L2C_PFCTL, pfctl.u64);
+ cvmx_write_csr(CVMX_L2C_PFCTL, pfctl.u64);
+ } else {
+ union cvmx_l2c_tadx_prf l2c_tadx_prf;
+ int tad;
+
+ cvmx_dprintf("L2C performance counter events are different for this chip, mapping 'event' to cvmx_l2c_tad_event_t\n");
+ if (clear_on_read)
+ cvmx_dprintf("L2C counters don't support clear on read for this chip\n");
+
+ l2c_tadx_prf.u64 = cvmx_read_csr(CVMX_L2C_TADX_PRF(0));
+
+ switch (counter) {
+ case 0:
+ l2c_tadx_prf.s.cnt0sel = event;
+ break;
+ case 1:
+ l2c_tadx_prf.s.cnt1sel = event;
+ break;
+ case 2:
+ l2c_tadx_prf.s.cnt2sel = event;
+ break;
+ default:
+ case 3:
+ l2c_tadx_prf.s.cnt3sel = event;
+ break;
+ }
+ for (tad = 0; tad < CVMX_L2C_TADS; tad++)
+ cvmx_write_csr(CVMX_L2C_TADX_PRF(tad),
+ l2c_tadx_prf.u64);
+ }
}
uint64_t cvmx_l2c_read_perf(uint32_t counter)
{
switch (counter) {
case 0:
- return cvmx_read_csr(CVMX_L2C_PFC0);
+ if (OCTEON_IS_MODEL(OCTEON_CN5XXX) || OCTEON_IS_MODEL(OCTEON_CN3XXX))
+ return cvmx_read_csr(CVMX_L2C_PFC0);
+ else {
+ uint64_t counter = 0;
+ int tad;
+ for (tad = 0; tad < CVMX_L2C_TADS; tad++)
+ counter += cvmx_read_csr(CVMX_L2C_TADX_PFC0(tad));
+ return counter;
+ }
case 1:
- return cvmx_read_csr(CVMX_L2C_PFC1);
+ if (OCTEON_IS_MODEL(OCTEON_CN5XXX) || OCTEON_IS_MODEL(OCTEON_CN3XXX))
+ return cvmx_read_csr(CVMX_L2C_PFC1);
+ else {
+ uint64_t counter = 0;
+ int tad;
+ for (tad = 0; tad < CVMX_L2C_TADS; tad++)
+ counter += cvmx_read_csr(CVMX_L2C_TADX_PFC1(tad));
+ return counter;
+ }
case 2:
- return cvmx_read_csr(CVMX_L2C_PFC2);
+ if (OCTEON_IS_MODEL(OCTEON_CN5XXX) || OCTEON_IS_MODEL(OCTEON_CN3XXX))
+ return cvmx_read_csr(CVMX_L2C_PFC2);
+ else {
+ uint64_t counter = 0;
+ int tad;
+ for (tad = 0; tad < CVMX_L2C_TADS; tad++)
+ counter += cvmx_read_csr(CVMX_L2C_TADX_PFC2(tad));
+ return counter;
+ }
case 3:
default:
- return cvmx_read_csr(CVMX_L2C_PFC3);
+ if (OCTEON_IS_MODEL(OCTEON_CN5XXX) || OCTEON_IS_MODEL(OCTEON_CN3XXX))
+ return cvmx_read_csr(CVMX_L2C_PFC3);
+ else {
+ uint64_t counter = 0;
+ int tad;
+ for (tad = 0; tad < CVMX_L2C_TADS; tad++)
+ counter += cvmx_read_csr(CVMX_L2C_TADX_PFC3(tad));
+ return counter;
+ }
}
}
volatile char dummy;
/*
* Adjust addr and length so we get all cache lines even for
- * small ranges spanning two cache lines
+ * small ranges spanning two cache lines.
*/
len += addr & CVMX_CACHE_LINE_MASK;
addr &= ~CVMX_CACHE_LINE_MASK;
int cvmx_l2c_lock_line(uint64_t addr)
{
- int retval = 0;
- union cvmx_l2c_dbg l2cdbg;
- union cvmx_l2c_lckbase lckbase;
- union cvmx_l2c_lckoff lckoff;
- union cvmx_l2t_err l2t_err;
- l2cdbg.u64 = 0;
- lckbase.u64 = 0;
- lckoff.u64 = 0;
-
- cvmx_spinlock_lock(&cvmx_l2c_spinlock);
-
- /* Clear l2t error bits if set */
- l2t_err.u64 = cvmx_read_csr(CVMX_L2T_ERR);
- l2t_err.s.lckerr = 1;
- l2t_err.s.lckerr2 = 1;
- cvmx_write_csr(CVMX_L2T_ERR, l2t_err.u64);
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ int shift = CVMX_L2C_TAG_ADDR_ALIAS_SHIFT;
+ uint64_t assoc = cvmx_l2c_get_num_assoc();
+ uint64_t tag = addr >> shift;
+ uint64_t index = CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS, cvmx_l2c_address_to_index(addr) << CVMX_L2C_IDX_ADDR_SHIFT);
+ uint64_t way;
+ union cvmx_l2c_tadx_tag l2c_tadx_tag;
+
+ CVMX_CACHE_LCKL2(CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS, addr), 0);
+
+ /* Make sure we were able to lock the line */
+ for (way = 0; way < assoc; way++) {
+ CVMX_CACHE_LTGL2I(index | (way << shift), 0);
+ /* make sure CVMX_L2C_TADX_TAG is updated */
+ CVMX_SYNC;
+ l2c_tadx_tag.u64 = cvmx_read_csr(CVMX_L2C_TADX_TAG(0));
+ if (l2c_tadx_tag.s.valid && l2c_tadx_tag.s.tag == tag)
+ break;
+ }
- addr &= ~CVMX_CACHE_LINE_MASK;
+ /* Check if a valid line is found */
+ if (way >= assoc) {
+ /* cvmx_dprintf("ERROR: cvmx_l2c_lock_line: line not found for locking at 0x%llx address\n", (unsigned long long)addr); */
+ return -1;
+ }
- /* Set this core as debug core */
- l2cdbg.s.ppnum = cvmx_get_core_num();
- CVMX_SYNC;
- cvmx_write_csr(CVMX_L2C_DBG, l2cdbg.u64);
- cvmx_read_csr(CVMX_L2C_DBG);
-
- lckoff.s.lck_offset = 0; /* Only lock 1 line at a time */
- cvmx_write_csr(CVMX_L2C_LCKOFF, lckoff.u64);
- cvmx_read_csr(CVMX_L2C_LCKOFF);
-
- if (((union cvmx_l2c_cfg) (cvmx_read_csr(CVMX_L2C_CFG))).s.idxalias) {
- int alias_shift =
- CVMX_L2C_IDX_ADDR_SHIFT + 2 * CVMX_L2_SET_BITS - 1;
- uint64_t addr_tmp =
- addr ^ (addr & ((1 << alias_shift) - 1)) >>
- CVMX_L2_SET_BITS;
- lckbase.s.lck_base = addr_tmp >> 7;
+ /* Check if lock bit is not set */
+ if (!l2c_tadx_tag.s.lock) {
+ /* cvmx_dprintf("ERROR: cvmx_l2c_lock_line: Not able to lock at 0x%llx address\n", (unsigned long long)addr); */
+ return -1;
+ }
+ return way;
} else {
- lckbase.s.lck_base = addr >> 7;
- }
+ int retval = 0;
+ union cvmx_l2c_dbg l2cdbg;
+ union cvmx_l2c_lckbase lckbase;
+ union cvmx_l2c_lckoff lckoff;
+ union cvmx_l2t_err l2t_err;
- lckbase.s.lck_ena = 1;
- cvmx_write_csr(CVMX_L2C_LCKBASE, lckbase.u64);
- cvmx_read_csr(CVMX_L2C_LCKBASE); /* Make sure it gets there */
+ cvmx_spinlock_lock(&cvmx_l2c_spinlock);
- fault_in(addr, CVMX_CACHE_LINE_SIZE);
+ l2cdbg.u64 = 0;
+ lckbase.u64 = 0;
+ lckoff.u64 = 0;
- lckbase.s.lck_ena = 0;
- cvmx_write_csr(CVMX_L2C_LCKBASE, lckbase.u64);
- cvmx_read_csr(CVMX_L2C_LCKBASE); /* Make sure it gets there */
+ /* Clear l2t error bits if set */
+ l2t_err.u64 = cvmx_read_csr(CVMX_L2T_ERR);
+ l2t_err.s.lckerr = 1;
+ l2t_err.s.lckerr2 = 1;
+ cvmx_write_csr(CVMX_L2T_ERR, l2t_err.u64);
- /* Stop being debug core */
- cvmx_write_csr(CVMX_L2C_DBG, 0);
- cvmx_read_csr(CVMX_L2C_DBG);
+ addr &= ~CVMX_CACHE_LINE_MASK;
- l2t_err.u64 = cvmx_read_csr(CVMX_L2T_ERR);
- if (l2t_err.s.lckerr || l2t_err.s.lckerr2)
- retval = 1; /* We were unable to lock the line */
+ /* Set this core as debug core */
+ l2cdbg.s.ppnum = cvmx_get_core_num();
+ CVMX_SYNC;
+ cvmx_write_csr(CVMX_L2C_DBG, l2cdbg.u64);
+ cvmx_read_csr(CVMX_L2C_DBG);
+
+ lckoff.s.lck_offset = 0; /* Only lock 1 line at a time */
+ cvmx_write_csr(CVMX_L2C_LCKOFF, lckoff.u64);
+ cvmx_read_csr(CVMX_L2C_LCKOFF);
+
+ if (((union cvmx_l2c_cfg)(cvmx_read_csr(CVMX_L2C_CFG))).s.idxalias) {
+ int alias_shift = CVMX_L2C_IDX_ADDR_SHIFT + 2 * CVMX_L2_SET_BITS - 1;
+ uint64_t addr_tmp = addr ^ (addr & ((1 << alias_shift) - 1)) >> CVMX_L2_SET_BITS;
+ lckbase.s.lck_base = addr_tmp >> 7;
+ } else {
+ lckbase.s.lck_base = addr >> 7;
+ }
- cvmx_spinlock_unlock(&cvmx_l2c_spinlock);
+ lckbase.s.lck_ena = 1;
+ cvmx_write_csr(CVMX_L2C_LCKBASE, lckbase.u64);
+ /* Make sure it gets there */
+ cvmx_read_csr(CVMX_L2C_LCKBASE);
- return retval;
+ fault_in(addr, CVMX_CACHE_LINE_SIZE);
+
+ lckbase.s.lck_ena = 0;
+ cvmx_write_csr(CVMX_L2C_LCKBASE, lckbase.u64);
+ /* Make sure it gets there */
+ cvmx_read_csr(CVMX_L2C_LCKBASE);
+
+ /* Stop being debug core */
+ cvmx_write_csr(CVMX_L2C_DBG, 0);
+ cvmx_read_csr(CVMX_L2C_DBG);
+
+ l2t_err.u64 = cvmx_read_csr(CVMX_L2T_ERR);
+ if (l2t_err.s.lckerr || l2t_err.s.lckerr2)
+ retval = 1; /* We were unable to lock the line */
+
+ cvmx_spinlock_unlock(&cvmx_l2c_spinlock);
+ return retval;
+ }
}
int cvmx_l2c_lock_mem_region(uint64_t start, uint64_t len)
start += CVMX_CACHE_LINE_SIZE;
len -= CVMX_CACHE_LINE_SIZE;
}
-
return retval;
}
{
uint64_t assoc, set;
uint64_t n_assoc, n_set;
- union cvmx_l2c_dbg l2cdbg;
-
- cvmx_spinlock_lock(&cvmx_l2c_spinlock);
- l2cdbg.u64 = 0;
- if (!OCTEON_IS_MODEL(OCTEON_CN30XX))
- l2cdbg.s.ppnum = cvmx_get_core_num();
- l2cdbg.s.finv = 1;
- n_set = CVMX_L2_SETS;
- n_assoc = l2_size_half() ? (CVMX_L2_ASSOC / 2) : CVMX_L2_ASSOC;
- for (set = 0; set < n_set; set++) {
- for (assoc = 0; assoc < n_assoc; assoc++) {
- l2cdbg.s.set = assoc;
- /* Enter debug mode, and make sure all other
- ** writes complete before we enter debug
- ** mode */
- CVMX_SYNCW;
- cvmx_write_csr(CVMX_L2C_DBG, l2cdbg.u64);
- cvmx_read_csr(CVMX_L2C_DBG);
-
- CVMX_PREPARE_FOR_STORE(CVMX_ADD_SEG
- (CVMX_MIPS_SPACE_XKPHYS,
- set * CVMX_CACHE_LINE_SIZE), 0);
- CVMX_SYNCW; /* Push STF out to L2 */
- /* Exit debug mode */
- CVMX_SYNC;
- cvmx_write_csr(CVMX_L2C_DBG, 0);
- cvmx_read_csr(CVMX_L2C_DBG);
+ n_set = cvmx_l2c_get_num_sets();
+ n_assoc = cvmx_l2c_get_num_assoc();
+
+ if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
+ uint64_t address;
+ /* These may look like constants, but they aren't... */
+ int assoc_shift = CVMX_L2C_TAG_ADDR_ALIAS_SHIFT;
+ int set_shift = CVMX_L2C_IDX_ADDR_SHIFT;
+ for (set = 0; set < n_set; set++) {
+ for (assoc = 0; assoc < n_assoc; assoc++) {
+ address = CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS,
+ (assoc << assoc_shift) | (set << set_shift));
+ CVMX_CACHE_WBIL2I(address, 0);
+ }
}
+ } else {
+ for (set = 0; set < n_set; set++)
+ for (assoc = 0; assoc < n_assoc; assoc++)
+ cvmx_l2c_flush_line(assoc, set);
}
-
- cvmx_spinlock_unlock(&cvmx_l2c_spinlock);
}
+
int cvmx_l2c_unlock_line(uint64_t address)
{
- int assoc;
- union cvmx_l2c_tag tag;
- union cvmx_l2c_dbg l2cdbg;
- uint32_t tag_addr;
- uint32_t index = cvmx_l2c_address_to_index(address);
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ int assoc;
+ union cvmx_l2c_tag tag;
+ uint32_t tag_addr;
+ uint32_t index = cvmx_l2c_address_to_index(address);
+
+ tag_addr = ((address >> CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) & ((1 << CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) - 1));
+
+ /*
+ * For 63XX, we can flush a line by using the physical
+ * address directly, so finding the cache line used by
+ * the address is only required to provide the proper
+ * return value for the function.
+ */
+ for (assoc = 0; assoc < CVMX_L2_ASSOC; assoc++) {
+ tag = cvmx_l2c_get_tag(assoc, index);
+
+ if (tag.s.V && (tag.s.addr == tag_addr)) {
+ CVMX_CACHE_WBIL2(CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS, address), 0);
+ return tag.s.L;
+ }
+ }
+ } else {
+ int assoc;
+ union cvmx_l2c_tag tag;
+ uint32_t tag_addr;
- cvmx_spinlock_lock(&cvmx_l2c_spinlock);
- /* Compute portion of address that is stored in tag */
- tag_addr =
- ((address >> CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) &
- ((1 << CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) - 1));
- for (assoc = 0; assoc < CVMX_L2_ASSOC; assoc++) {
- tag = cvmx_get_l2c_tag(assoc, index);
+ uint32_t index = cvmx_l2c_address_to_index(address);
- if (tag.s.V && (tag.s.addr == tag_addr)) {
- l2cdbg.u64 = 0;
- l2cdbg.s.ppnum = cvmx_get_core_num();
- l2cdbg.s.set = assoc;
- l2cdbg.s.finv = 1;
+ /* Compute portion of address that is stored in tag */
+ tag_addr = ((address >> CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) & ((1 << CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) - 1));
+ for (assoc = 0; assoc < CVMX_L2_ASSOC; assoc++) {
+ tag = cvmx_l2c_get_tag(assoc, index);
- CVMX_SYNC;
- /* Enter debug mode */
- cvmx_write_csr(CVMX_L2C_DBG, l2cdbg.u64);
- cvmx_read_csr(CVMX_L2C_DBG);
-
- CVMX_PREPARE_FOR_STORE(CVMX_ADD_SEG
- (CVMX_MIPS_SPACE_XKPHYS,
- address), 0);
- CVMX_SYNC;
- /* Exit debug mode */
- cvmx_write_csr(CVMX_L2C_DBG, 0);
- cvmx_read_csr(CVMX_L2C_DBG);
- cvmx_spinlock_unlock(&cvmx_l2c_spinlock);
- return tag.s.L;
+ if (tag.s.V && (tag.s.addr == tag_addr)) {
+ cvmx_l2c_flush_line(assoc, index);
+ return tag.s.L;
+ }
}
}
- cvmx_spinlock_unlock(&cvmx_l2c_spinlock);
return 0;
}
uint64_t u64;
struct cvmx_l2c_tag_cn50xx {
uint64_t reserved:40;
- uint64_t V:1; /* Line valid */
- uint64_t D:1; /* Line dirty */
- uint64_t L:1; /* Line locked */
- uint64_t U:1; /* Use, LRU eviction */
+ uint64_t V:1; /* Line valid */
+ uint64_t D:1; /* Line dirty */
+ uint64_t L:1; /* Line locked */
+ uint64_t U:1; /* Use, LRU eviction */
uint64_t addr:20; /* Phys mem addr (33..14) */
} cn50xx;
struct cvmx_l2c_tag_cn30xx {
uint64_t reserved:41;
- uint64_t V:1; /* Line valid */
- uint64_t D:1; /* Line dirty */
- uint64_t L:1; /* Line locked */
- uint64_t U:1; /* Use, LRU eviction */
+ uint64_t V:1; /* Line valid */
+ uint64_t D:1; /* Line dirty */
+ uint64_t L:1; /* Line locked */
+ uint64_t U:1; /* Use, LRU eviction */
uint64_t addr:19; /* Phys mem addr (33..15) */
} cn30xx;
struct cvmx_l2c_tag_cn31xx {
uint64_t reserved:42;
- uint64_t V:1; /* Line valid */
- uint64_t D:1; /* Line dirty */
- uint64_t L:1; /* Line locked */
- uint64_t U:1; /* Use, LRU eviction */
+ uint64_t V:1; /* Line valid */
+ uint64_t D:1; /* Line dirty */
+ uint64_t L:1; /* Line locked */
+ uint64_t U:1; /* Use, LRU eviction */
uint64_t addr:18; /* Phys mem addr (33..16) */
} cn31xx;
struct cvmx_l2c_tag_cn38xx {
uint64_t reserved:43;
- uint64_t V:1; /* Line valid */
- uint64_t D:1; /* Line dirty */
- uint64_t L:1; /* Line locked */
- uint64_t U:1; /* Use, LRU eviction */
+ uint64_t V:1; /* Line valid */
+ uint64_t D:1; /* Line dirty */
+ uint64_t L:1; /* Line locked */
+ uint64_t U:1; /* Use, LRU eviction */
uint64_t addr:17; /* Phys mem addr (33..17) */
} cn38xx;
struct cvmx_l2c_tag_cn58xx {
uint64_t reserved:44;
- uint64_t V:1; /* Line valid */
- uint64_t D:1; /* Line dirty */
- uint64_t L:1; /* Line locked */
- uint64_t U:1; /* Use, LRU eviction */
+ uint64_t V:1; /* Line valid */
+ uint64_t D:1; /* Line dirty */
+ uint64_t L:1; /* Line locked */
+ uint64_t U:1; /* Use, LRU eviction */
uint64_t addr:16; /* Phys mem addr (33..18) */
} cn58xx;
struct cvmx_l2c_tag_cn58xx cn56xx; /* 2048 sets */
struct cvmx_l2c_tag_cn31xx cn52xx; /* 512 sets */
};
+
/**
* @INTERNAL
* Function to read a L2C tag. This code make the current core
static union __cvmx_l2c_tag __read_l2_tag(uint64_t assoc, uint64_t index)
{
- uint64_t debug_tag_addr = (((1ULL << 63) | (index << 7)) + 96);
+ uint64_t debug_tag_addr = CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS, (index << 7) + 96);
uint64_t core = cvmx_get_core_num();
union __cvmx_l2c_tag tag_val;
uint64_t dbg_addr = CVMX_L2C_DBG;
union cvmx_l2c_dbg debug_val;
debug_val.u64 = 0;
/*
- * For low core count parts, the core number is always small enough
- * to stay in the correct field and not set any reserved bits.
+ * For low core count parts, the core number is always small
+ * enough to stay in the correct field and not set any
+ * reserved bits.
*/
debug_val.s.ppnum = core;
debug_val.s.l2t = 1;
debug_val.s.set = assoc;
+
+ local_irq_save(flags);
/*
* Make sure core is quiet (no prefetches, etc.) before
* entering debug mode.
/* Flush L1 to make sure debug load misses L1 */
CVMX_DCACHE_INVALIDATE;
- local_irq_save(flags);
-
/*
* The following must be done in assembly as when in debug
* mode all data loads from L2 return special debug data, not
- * normal memory contents. Also, interrupts must be
- * disabled, since if an interrupt occurs while in debug mode
- * the ISR will get debug data from all its memory reads
- * instead of the contents of memory
+ * normal memory contents. Also, interrupts must be disabled,
+ * since if an interrupt occurs while in debug mode the ISR
+ * will get debug data from all its memory * reads instead of
+ * the contents of memory.
*/
- asm volatile (".set push \n"
- " .set mips64 \n"
- " .set noreorder \n"
- /* Enter debug mode, wait for store */
- " sd %[dbg_val], 0(%[dbg_addr]) \n"
- " ld $0, 0(%[dbg_addr]) \n"
- /* Read L2C tag data */
- " ld %[tag_val], 0(%[tag_addr]) \n"
- /* Exit debug mode, wait for store */
- " sd $0, 0(%[dbg_addr]) \n"
- " ld $0, 0(%[dbg_addr]) \n"
- /* Invalidate dcache to discard debug data */
- " cache 9, 0($0) \n"
- " .set pop" :
- [tag_val] "=r"(tag_val.u64) : [dbg_addr] "r"(dbg_addr),
- [dbg_val] "r"(debug_val.u64),
- [tag_addr] "r"(debug_tag_addr) : "memory");
+ asm volatile (
+ ".set push\n\t"
+ ".set mips64\n\t"
+ ".set noreorder\n\t"
+ "sd %[dbg_val], 0(%[dbg_addr])\n\t" /* Enter debug mode, wait for store */
+ "ld $0, 0(%[dbg_addr])\n\t"
+ "ld %[tag_val], 0(%[tag_addr])\n\t" /* Read L2C tag data */
+ "sd $0, 0(%[dbg_addr])\n\t" /* Exit debug mode, wait for store */
+ "ld $0, 0(%[dbg_addr])\n\t"
+ "cache 9, 0($0)\n\t" /* Invalidate dcache to discard debug data */
+ ".set pop"
+ : [tag_val] "=r" (tag_val)
+ : [dbg_addr] "r" (dbg_addr), [dbg_val] "r" (debug_val), [tag_addr] "r" (debug_tag_addr)
+ : "memory");
local_irq_restore(flags);
- return tag_val;
+ return tag_val;
}
+
union cvmx_l2c_tag cvmx_l2c_get_tag(uint32_t association, uint32_t index)
{
- union __cvmx_l2c_tag tmp_tag;
union cvmx_l2c_tag tag;
tag.u64 = 0;
if ((int)association >= cvmx_l2c_get_num_assoc()) {
- cvmx_dprintf
- ("ERROR: cvmx_get_l2c_tag association out of range\n");
+ cvmx_dprintf("ERROR: cvmx_l2c_get_tag association out of range\n");
return tag;
}
if ((int)index >= cvmx_l2c_get_num_sets()) {
- cvmx_dprintf("ERROR: cvmx_get_l2c_tag "
- "index out of range (arg: %d, max: %d\n",
- index, cvmx_l2c_get_num_sets());
+ cvmx_dprintf("ERROR: cvmx_l2c_get_tag index out of range (arg: %d, max: %d)\n",
+ (int)index, cvmx_l2c_get_num_sets());
return tag;
}
- /* __read_l2_tag is intended for internal use only */
- tmp_tag = __read_l2_tag(association, index);
-
- /*
- * Convert all tag structure types to generic version, as it
- * can represent all models.
- */
- if (OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN56XX)) {
- tag.s.V = tmp_tag.cn58xx.V;
- tag.s.D = tmp_tag.cn58xx.D;
- tag.s.L = tmp_tag.cn58xx.L;
- tag.s.U = tmp_tag.cn58xx.U;
- tag.s.addr = tmp_tag.cn58xx.addr;
- } else if (OCTEON_IS_MODEL(OCTEON_CN38XX)) {
- tag.s.V = tmp_tag.cn38xx.V;
- tag.s.D = tmp_tag.cn38xx.D;
- tag.s.L = tmp_tag.cn38xx.L;
- tag.s.U = tmp_tag.cn38xx.U;
- tag.s.addr = tmp_tag.cn38xx.addr;
- } else if (OCTEON_IS_MODEL(OCTEON_CN31XX)
- || OCTEON_IS_MODEL(OCTEON_CN52XX)) {
- tag.s.V = tmp_tag.cn31xx.V;
- tag.s.D = tmp_tag.cn31xx.D;
- tag.s.L = tmp_tag.cn31xx.L;
- tag.s.U = tmp_tag.cn31xx.U;
- tag.s.addr = tmp_tag.cn31xx.addr;
- } else if (OCTEON_IS_MODEL(OCTEON_CN30XX)) {
- tag.s.V = tmp_tag.cn30xx.V;
- tag.s.D = tmp_tag.cn30xx.D;
- tag.s.L = tmp_tag.cn30xx.L;
- tag.s.U = tmp_tag.cn30xx.U;
- tag.s.addr = tmp_tag.cn30xx.addr;
- } else if (OCTEON_IS_MODEL(OCTEON_CN50XX)) {
- tag.s.V = tmp_tag.cn50xx.V;
- tag.s.D = tmp_tag.cn50xx.D;
- tag.s.L = tmp_tag.cn50xx.L;
- tag.s.U = tmp_tag.cn50xx.U;
- tag.s.addr = tmp_tag.cn50xx.addr;
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ union cvmx_l2c_tadx_tag l2c_tadx_tag;
+ uint64_t address = CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS,
+ (association << CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) |
+ (index << CVMX_L2C_IDX_ADDR_SHIFT));
+ /*
+ * Use L2 cache Index load tag cache instruction, as
+ * hardware loads the virtual tag for the L2 cache
+ * block with the contents of L2C_TAD0_TAG
+ * register.
+ */
+ CVMX_CACHE_LTGL2I(address, 0);
+ CVMX_SYNC; /* make sure CVMX_L2C_TADX_TAG is updated */
+ l2c_tadx_tag.u64 = cvmx_read_csr(CVMX_L2C_TADX_TAG(0));
+
+ tag.s.V = l2c_tadx_tag.s.valid;
+ tag.s.D = l2c_tadx_tag.s.dirty;
+ tag.s.L = l2c_tadx_tag.s.lock;
+ tag.s.U = l2c_tadx_tag.s.use;
+ tag.s.addr = l2c_tadx_tag.s.tag;
} else {
- cvmx_dprintf("Unsupported OCTEON Model in %s\n", __func__);
+ union __cvmx_l2c_tag tmp_tag;
+ /* __read_l2_tag is intended for internal use only */
+ tmp_tag = __read_l2_tag(association, index);
+
+ /*
+ * Convert all tag structure types to generic version,
+ * as it can represent all models.
+ */
+ if (OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN56XX)) {
+ tag.s.V = tmp_tag.cn58xx.V;
+ tag.s.D = tmp_tag.cn58xx.D;
+ tag.s.L = tmp_tag.cn58xx.L;
+ tag.s.U = tmp_tag.cn58xx.U;
+ tag.s.addr = tmp_tag.cn58xx.addr;
+ } else if (OCTEON_IS_MODEL(OCTEON_CN38XX)) {
+ tag.s.V = tmp_tag.cn38xx.V;
+ tag.s.D = tmp_tag.cn38xx.D;
+ tag.s.L = tmp_tag.cn38xx.L;
+ tag.s.U = tmp_tag.cn38xx.U;
+ tag.s.addr = tmp_tag.cn38xx.addr;
+ } else if (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) {
+ tag.s.V = tmp_tag.cn31xx.V;
+ tag.s.D = tmp_tag.cn31xx.D;
+ tag.s.L = tmp_tag.cn31xx.L;
+ tag.s.U = tmp_tag.cn31xx.U;
+ tag.s.addr = tmp_tag.cn31xx.addr;
+ } else if (OCTEON_IS_MODEL(OCTEON_CN30XX)) {
+ tag.s.V = tmp_tag.cn30xx.V;
+ tag.s.D = tmp_tag.cn30xx.D;
+ tag.s.L = tmp_tag.cn30xx.L;
+ tag.s.U = tmp_tag.cn30xx.U;
+ tag.s.addr = tmp_tag.cn30xx.addr;
+ } else if (OCTEON_IS_MODEL(OCTEON_CN50XX)) {
+ tag.s.V = tmp_tag.cn50xx.V;
+ tag.s.D = tmp_tag.cn50xx.D;
+ tag.s.L = tmp_tag.cn50xx.L;
+ tag.s.U = tmp_tag.cn50xx.U;
+ tag.s.addr = tmp_tag.cn50xx.addr;
+ } else {
+ cvmx_dprintf("Unsupported OCTEON Model in %s\n", __func__);
+ }
}
-
return tag;
}
uint32_t cvmx_l2c_address_to_index(uint64_t addr)
{
uint64_t idx = addr >> CVMX_L2C_IDX_ADDR_SHIFT;
- union cvmx_l2c_cfg l2c_cfg;
- l2c_cfg.u64 = cvmx_read_csr(CVMX_L2C_CFG);
+ int indxalias = 0;
- if (l2c_cfg.s.idxalias) {
- idx ^=
- ((addr & CVMX_L2C_ALIAS_MASK) >>
- CVMX_L2C_TAG_ADDR_ALIAS_SHIFT);
+ if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
+ union cvmx_l2c_ctl l2c_ctl;
+ l2c_ctl.u64 = cvmx_read_csr(CVMX_L2C_CTL);
+ indxalias = !l2c_ctl.s.disidxalias;
+ } else {
+ union cvmx_l2c_cfg l2c_cfg;
+ l2c_cfg.u64 = cvmx_read_csr(CVMX_L2C_CFG);
+ indxalias = l2c_cfg.s.idxalias;
+ }
+
+ if (indxalias) {
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ uint32_t a_14_12 = (idx / (CVMX_L2C_MEMBANK_SELECT_SIZE/(1<<CVMX_L2C_IDX_ADDR_SHIFT))) & 0x7;
+ idx ^= idx / cvmx_l2c_get_num_sets();
+ idx ^= a_14_12;
+ } else {
+ idx ^= ((addr & CVMX_L2C_ALIAS_MASK) >> CVMX_L2C_TAG_ADDR_ALIAS_SHIFT);
+ }
}
idx &= CVMX_L2C_IDX_MASK;
return idx;
int l2_set_bits;
if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN58XX))
l2_set_bits = 11; /* 2048 sets */
- else if (OCTEON_IS_MODEL(OCTEON_CN38XX))
+ else if (OCTEON_IS_MODEL(OCTEON_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN63XX))
l2_set_bits = 10; /* 1024 sets */
- else if (OCTEON_IS_MODEL(OCTEON_CN31XX)
- || OCTEON_IS_MODEL(OCTEON_CN52XX))
+ else if (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN52XX))
l2_set_bits = 9; /* 512 sets */
else if (OCTEON_IS_MODEL(OCTEON_CN30XX))
l2_set_bits = 8; /* 256 sets */
l2_set_bits = 11; /* 2048 sets */
}
return l2_set_bits;
-
}
/* Return the number of sets in the L2 Cache */
if (OCTEON_IS_MODEL(OCTEON_CN56XX) ||
OCTEON_IS_MODEL(OCTEON_CN52XX) ||
OCTEON_IS_MODEL(OCTEON_CN58XX) ||
- OCTEON_IS_MODEL(OCTEON_CN50XX) || OCTEON_IS_MODEL(OCTEON_CN38XX))
+ OCTEON_IS_MODEL(OCTEON_CN50XX) ||
+ OCTEON_IS_MODEL(OCTEON_CN38XX))
l2_assoc = 8;
+ else if (OCTEON_IS_MODEL(OCTEON_CN63XX))
+ l2_assoc = 16;
else if (OCTEON_IS_MODEL(OCTEON_CN31XX) ||
OCTEON_IS_MODEL(OCTEON_CN30XX))
l2_assoc = 4;
}
/* Check to see if part of the cache is disabled */
- if (cvmx_fuse_read(265))
- l2_assoc = l2_assoc >> 2;
- else if (cvmx_fuse_read(264))
- l2_assoc = l2_assoc >> 1;
-
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ union cvmx_mio_fus_dat3 mio_fus_dat3;
+
+ mio_fus_dat3.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT3);
+ /*
+ * cvmx_mio_fus_dat3.s.l2c_crip fuses map as follows
+ * <2> will be not used for 63xx
+ * <1> disables 1/2 ways
+ * <0> disables 1/4 ways
+ * They are cumulative, so for 63xx:
+ * <1> <0>
+ * 0 0 16-way 2MB cache
+ * 0 1 12-way 1.5MB cache
+ * 1 0 8-way 1MB cache
+ * 1 1 4-way 512KB cache
+ */
+
+ if (mio_fus_dat3.s.l2c_crip == 3)
+ l2_assoc = 4;
+ else if (mio_fus_dat3.s.l2c_crip == 2)
+ l2_assoc = 8;
+ else if (mio_fus_dat3.s.l2c_crip == 1)
+ l2_assoc = 12;
+ } else {
+ union cvmx_l2d_fus3 val;
+ val.u64 = cvmx_read_csr(CVMX_L2D_FUS3);
+ /*
+ * Using shifts here, as bit position names are
+ * different for each model but they all mean the
+ * same.
+ */
+ if ((val.u64 >> 35) & 0x1)
+ l2_assoc = l2_assoc >> 2;
+ else if ((val.u64 >> 34) & 0x1)
+ l2_assoc = l2_assoc >> 1;
+ }
return l2_assoc;
}
*/
void cvmx_l2c_flush_line(uint32_t assoc, uint32_t index)
{
- union cvmx_l2c_dbg l2cdbg;
+ /* Check the range of the index. */
+ if (index > (uint32_t)cvmx_l2c_get_num_sets()) {
+ cvmx_dprintf("ERROR: cvmx_l2c_flush_line index out of range.\n");
+ return;
+ }
- l2cdbg.u64 = 0;
- l2cdbg.s.ppnum = cvmx_get_core_num();
- l2cdbg.s.finv = 1;
+ /* Check the range of association. */
+ if (assoc > (uint32_t)cvmx_l2c_get_num_assoc()) {
+ cvmx_dprintf("ERROR: cvmx_l2c_flush_line association out of range.\n");
+ return;
+ }
- l2cdbg.s.set = assoc;
- /*
- * Enter debug mode, and make sure all other writes complete
- * before we enter debug mode.
- */
- asm volatile ("sync" : : : "memory");
- cvmx_write_csr(CVMX_L2C_DBG, l2cdbg.u64);
- cvmx_read_csr(CVMX_L2C_DBG);
-
- CVMX_PREPARE_FOR_STORE(((1ULL << 63) + (index) * 128), 0);
- /* Exit debug mode */
- asm volatile ("sync" : : : "memory");
- cvmx_write_csr(CVMX_L2C_DBG, 0);
- cvmx_read_csr(CVMX_L2C_DBG);
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
+ uint64_t address;
+ /* Create the address based on index and association.
+ * Bits<20:17> select the way of the cache block involved in
+ * the operation
+ * Bits<16:7> of the effect address select the index
+ */
+ address = CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS,
+ (assoc << CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) |
+ (index << CVMX_L2C_IDX_ADDR_SHIFT));
+ CVMX_CACHE_WBIL2I(address, 0);
+ } else {
+ union cvmx_l2c_dbg l2cdbg;
+
+ l2cdbg.u64 = 0;
+ if (!OCTEON_IS_MODEL(OCTEON_CN30XX))
+ l2cdbg.s.ppnum = cvmx_get_core_num();
+ l2cdbg.s.finv = 1;
+
+ l2cdbg.s.set = assoc;
+ cvmx_spinlock_lock(&cvmx_l2c_spinlock);
+ /*
+ * Enter debug mode, and make sure all other writes
+ * complete before we enter debug mode
+ */
+ CVMX_SYNC;
+ cvmx_write_csr(CVMX_L2C_DBG, l2cdbg.u64);
+ cvmx_read_csr(CVMX_L2C_DBG);
+
+ CVMX_PREPARE_FOR_STORE(CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS,
+ index * CVMX_CACHE_LINE_SIZE),
+ 0);
+ /* Exit debug mode */
+ CVMX_SYNC;
+ cvmx_write_csr(CVMX_L2C_DBG, 0);
+ cvmx_read_csr(CVMX_L2C_DBG);
+ cvmx_spinlock_unlock(&cvmx_l2c_spinlock);
+ }
}
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2004-2009 Cavium Networks
+ * Copyright (C) 2004-2010 Cavium Networks
* Copyright (C) 2008 Wind River Systems
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/i2c.h>
+#include <linux/usb.h>
+#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/platform_device.h>
num_ports = 1;
for (port = 0; port < num_ports; port++) {
- octeon_i2c_data[port].sys_freq = octeon_get_clock_rate();
+ octeon_i2c_data[port].sys_freq = octeon_get_io_clock_rate();
/*FIXME: should be examined. At the moment is set for 100Khz */
octeon_i2c_data[port].i2c_freq = 100000;
ret = -ENOMEM;
goto out;
}
+ /* No DMA restrictions */
+ pd->dev.coherent_dma_mask = DMA_BIT_MASK(64);
+ pd->dev.dma_mask = &pd->dev.coherent_dma_mask;
+
switch (port) {
case 0:
mgmt_port_resource.start = OCTEON_IRQ_MII0;
}
device_initcall(octeon_mgmt_device_init);
+#ifdef CONFIG_USB
+
+static int __init octeon_ehci_device_init(void)
+{
+ struct platform_device *pd;
+ int ret = 0;
+
+ struct resource usb_resources[] = {
+ {
+ .flags = IORESOURCE_MEM,
+ }, {
+ .flags = IORESOURCE_IRQ,
+ }
+ };
+
+ /* Only Octeon2 has ehci/ohci */
+ if (!OCTEON_IS_MODEL(OCTEON_CN63XX))
+ return 0;
+
+ if (octeon_is_simulation() || usb_disabled())
+ return 0; /* No USB in the simulator. */
+
+ pd = platform_device_alloc("octeon-ehci", 0);
+ if (!pd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ usb_resources[0].start = 0x00016F0000000000ULL;
+ usb_resources[0].end = usb_resources[0].start + 0x100;
+
+ usb_resources[1].start = OCTEON_IRQ_USB0;
+ usb_resources[1].end = OCTEON_IRQ_USB0;
+
+ ret = platform_device_add_resources(pd, usb_resources,
+ ARRAY_SIZE(usb_resources));
+ if (ret)
+ goto fail;
+
+ ret = platform_device_add(pd);
+ if (ret)
+ goto fail;
+
+ return ret;
+fail:
+ platform_device_put(pd);
+out:
+ return ret;
+}
+device_initcall(octeon_ehci_device_init);
+
+static int __init octeon_ohci_device_init(void)
+{
+ struct platform_device *pd;
+ int ret = 0;
+
+ struct resource usb_resources[] = {
+ {
+ .flags = IORESOURCE_MEM,
+ }, {
+ .flags = IORESOURCE_IRQ,
+ }
+ };
+
+ /* Only Octeon2 has ehci/ohci */
+ if (!OCTEON_IS_MODEL(OCTEON_CN63XX))
+ return 0;
+
+ if (octeon_is_simulation() || usb_disabled())
+ return 0; /* No USB in the simulator. */
+
+ pd = platform_device_alloc("octeon-ohci", 0);
+ if (!pd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ usb_resources[0].start = 0x00016F0000000400ULL;
+ usb_resources[0].end = usb_resources[0].start + 0x100;
+
+ usb_resources[1].start = OCTEON_IRQ_USB0;
+ usb_resources[1].end = OCTEON_IRQ_USB0;
+
+ ret = platform_device_add_resources(pd, usb_resources,
+ ARRAY_SIZE(usb_resources));
+ if (ret)
+ goto fail;
+
+ ret = platform_device_add(pd);
+ if (ret)
+ goto fail;
+
+ return ret;
+fail:
+ platform_device_put(pd);
+out:
+ return ret;
+}
+device_initcall(octeon_ohci_device_init);
+
+#endif /* CONFIG_USB */
+
MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Platform driver for Octeon SOC");
/* Make simulator output fast*/
p->uartclk = 115200 * 16;
else
- p->uartclk = mips_hpt_frequency;
+ p->uartclk = octeon_get_io_clock_rate();
p->serial_in = octeon_serial_in;
p->serial_out = octeon_serial_out;
}
#include <asm/octeon/octeon.h>
#include <asm/octeon/pci-octeon.h>
+#include <asm/octeon/cvmx-mio-defs.h>
#ifdef CONFIG_CAVIUM_DECODE_RSL
extern void cvmx_interrupt_rsl_decode(void);
*/
uint64_t octeon_get_clock_rate(void)
{
- if (octeon_is_simulation())
- octeon_bootinfo->eclock_hz = 6000000;
- return octeon_bootinfo->eclock_hz;
+ struct cvmx_sysinfo *sysinfo = cvmx_sysinfo_get();
+
+ return sysinfo->cpu_clock_hz;
}
EXPORT_SYMBOL(octeon_get_clock_rate);
+static u64 octeon_io_clock_rate;
+
+u64 octeon_get_io_clock_rate(void)
+{
+ return octeon_io_clock_rate;
+}
+EXPORT_SYMBOL(octeon_get_io_clock_rate);
+
+
/**
* Write to the LCD display connected to the bootbus. This display
* exists on most Cavium evaluation boards. If it doesn't exist, then
cvmmemctl.s.wbfltime = 0;
/* R/W If set, do not put Istream in the L2 cache. */
cvmmemctl.s.istrnol2 = 0;
- /* R/W The write buffer threshold. */
- cvmmemctl.s.wbthresh = 10;
+
+ /*
+ * R/W The write buffer threshold. As per erratum Core-14752
+ * for CN63XX, a sc/scd might fail if the write buffer is
+ * full. Lowering WBTHRESH greatly lowers the chances of the
+ * write buffer ever being full and triggering the erratum.
+ */
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X))
+ cvmmemctl.s.wbthresh = 4;
+ else
+ cvmmemctl.s.wbthresh = 10;
+
/* R/W If set, CVMSEG is available for loads/stores in
* kernel/debug mode. */
#if CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0
* is max legal value. */
cvmmemctl.s.lmemsz = CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE;
+ write_c0_cvmmemctl(cvmmemctl.u64);
if (smp_processor_id() == 0)
pr_notice("CVMSEG size: %d cache lines (%d bytes)\n",
CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE,
CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE * 128);
- write_c0_cvmmemctl(cvmmemctl.u64);
-
/* Move the performance counter interrupts to IRQ 6 */
cvmctl = read_c0_cvmctl();
cvmctl &= ~(7 << 7);
cvmx_phys_to_ptr(octeon_boot_desc_ptr->cvmx_desc_vaddr);
cvmx_bootmem_init(cvmx_phys_to_ptr(octeon_bootinfo->phy_mem_desc_addr));
+ sysinfo = cvmx_sysinfo_get();
+ memset(sysinfo, 0, sizeof(*sysinfo));
+ sysinfo->system_dram_size = octeon_bootinfo->dram_size << 20;
+ sysinfo->phy_mem_desc_ptr =
+ cvmx_phys_to_ptr(octeon_bootinfo->phy_mem_desc_addr);
+ sysinfo->core_mask = octeon_bootinfo->core_mask;
+ sysinfo->exception_base_addr = octeon_bootinfo->exception_base_addr;
+ sysinfo->cpu_clock_hz = octeon_bootinfo->eclock_hz;
+ sysinfo->dram_data_rate_hz = octeon_bootinfo->dclock_hz * 2;
+ sysinfo->board_type = octeon_bootinfo->board_type;
+ sysinfo->board_rev_major = octeon_bootinfo->board_rev_major;
+ sysinfo->board_rev_minor = octeon_bootinfo->board_rev_minor;
+ memcpy(sysinfo->mac_addr_base, octeon_bootinfo->mac_addr_base,
+ sizeof(sysinfo->mac_addr_base));
+ sysinfo->mac_addr_count = octeon_bootinfo->mac_addr_count;
+ memcpy(sysinfo->board_serial_number,
+ octeon_bootinfo->board_serial_number,
+ sizeof(sysinfo->board_serial_number));
+ sysinfo->compact_flash_common_base_addr =
+ octeon_bootinfo->compact_flash_common_base_addr;
+ sysinfo->compact_flash_attribute_base_addr =
+ octeon_bootinfo->compact_flash_attribute_base_addr;
+ sysinfo->led_display_base_addr = octeon_bootinfo->led_display_base_addr;
+ 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)) {
+ /* 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 {
+ octeon_io_clock_rate = sysinfo->cpu_clock_hz;
+ }
+
/*
* 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.
}
#endif
- sysinfo = cvmx_sysinfo_get();
- memset(sysinfo, 0, sizeof(*sysinfo));
- sysinfo->system_dram_size = octeon_bootinfo->dram_size << 20;
- sysinfo->phy_mem_desc_ptr =
- cvmx_phys_to_ptr(octeon_bootinfo->phy_mem_desc_addr);
- sysinfo->core_mask = octeon_bootinfo->core_mask;
- sysinfo->exception_base_addr = octeon_bootinfo->exception_base_addr;
- sysinfo->cpu_clock_hz = octeon_bootinfo->eclock_hz;
- sysinfo->dram_data_rate_hz = octeon_bootinfo->dclock_hz * 2;
- sysinfo->board_type = octeon_bootinfo->board_type;
- sysinfo->board_rev_major = octeon_bootinfo->board_rev_major;
- sysinfo->board_rev_minor = octeon_bootinfo->board_rev_minor;
- memcpy(sysinfo->mac_addr_base, octeon_bootinfo->mac_addr_base,
- sizeof(sysinfo->mac_addr_base));
- sysinfo->mac_addr_count = octeon_bootinfo->mac_addr_count;
- memcpy(sysinfo->board_serial_number,
- octeon_bootinfo->board_serial_number,
- sizeof(sysinfo->board_serial_number));
- sysinfo->compact_flash_common_base_addr =
- octeon_bootinfo->compact_flash_common_base_addr;
- sysinfo->compact_flash_attribute_base_addr =
- octeon_bootinfo->compact_flash_attribute_base_addr;
- sysinfo->led_display_base_addr = octeon_bootinfo->led_display_base_addr;
- sysinfo->dfa_ref_clock_hz = octeon_bootinfo->dfa_ref_clock_hz;
- sysinfo->bootloader_config_flags = octeon_bootinfo->config_flags;
-
-
octeon_check_cpu_bist();
octeon_uart = octeon_get_boot_uart();
void prom_free_prom_memory(void)
{
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X)) {
+ /* Check for presence of Core-14449 fix. */
+ u32 insn;
+ u32 *foo;
+
+ foo = &insn;
+
+ asm volatile("# before" : : : "memory");
+ prefetch(foo);
+ asm volatile(
+ ".set push\n\t"
+ ".set noreorder\n\t"
+ "bal 1f\n\t"
+ "nop\n"
+ "1:\tlw %0,-12($31)\n\t"
+ ".set pop\n\t"
+ : "=r" (insn) : : "$31", "memory");
+
+ if ((insn >> 26) != 0x33)
+ panic("No PREF instruction at Core-14449 probe point.\n");
+
+ if (((insn >> 16) & 0x1f) != 28)
+ panic("Core-14449 WAR not in place (%04x).\n"
+ "Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).\n", insn);
+ }
#ifdef CONFIG_CAVIUM_DECODE_RSL
cvmx_interrupt_rsl_enable();
} else if (kernel_uses_llsc) {
int temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: ll %0, %1 # atomic_add \n"
- " addu %0, %2 \n"
- " sc %0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter));
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " ll %0, %1 # atomic_add \n"
+ " addu %0, %2 \n"
+ " sc %0, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter));
+ } while (unlikely(!temp));
} else {
unsigned long flags;
} else if (kernel_uses_llsc) {
int temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: ll %0, %1 # atomic_sub \n"
- " subu %0, %2 \n"
- " sc %0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter));
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " ll %0, %1 # atomic_sub \n"
+ " subu %0, %2 \n"
+ " sc %0, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter));
+ } while (unlikely(!temp));
} else {
unsigned long flags;
} else if (kernel_uses_llsc) {
int temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: ll %1, %2 # atomic_add_return \n"
- " addu %0, %1, %3 \n"
- " sc %0, %2 \n"
- " beqz %0, 2f \n"
- " addu %0, %1, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (result), "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " ll %1, %2 # atomic_add_return \n"
+ " addu %0, %1, %3 \n"
+ " sc %0, %2 \n"
+ " .set mips0 \n"
+ : "=&r" (result), "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter)
+ : "memory");
+ } while (unlikely(!result));
+
+ result = temp + i;
} else {
unsigned long flags;
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
: "memory");
+
+ result = temp - i;
} else if (kernel_uses_llsc) {
int temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: ll %1, %2 # atomic_sub_return \n"
- " subu %0, %1, %3 \n"
- " sc %0, %2 \n"
- " beqz %0, 2f \n"
- " subu %0, %1, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (result), "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " ll %1, %2 # atomic_sub_return \n"
+ " subu %0, %1, %3 \n"
+ " sc %0, %2 \n"
+ " .set mips0 \n"
+ : "=&r" (result), "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter)
+ : "memory");
+ } while (unlikely(!result));
+
+ result = temp - i;
} else {
unsigned long flags;
" bltz %0, 1f \n"
" sc %0, %2 \n"
" .set noreorder \n"
- " beqz %0, 2f \n"
+ " beqz %0, 1b \n"
" subu %0, %1, %3 \n"
" .set reorder \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
"1: \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
} else if (kernel_uses_llsc) {
long temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: lld %0, %1 # atomic64_add \n"
- " daddu %0, %2 \n"
- " scd %0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter));
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " lld %0, %1 # atomic64_add \n"
+ " daddu %0, %2 \n"
+ " scd %0, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter));
+ } while (unlikely(!temp));
} else {
unsigned long flags;
} else if (kernel_uses_llsc) {
long temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: lld %0, %1 # atomic64_sub \n"
- " dsubu %0, %2 \n"
- " scd %0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter));
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " lld %0, %1 # atomic64_sub \n"
+ " dsubu %0, %2 \n"
+ " scd %0, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter));
+ } while (unlikely(!temp));
} else {
unsigned long flags;
} else if (kernel_uses_llsc) {
long temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: lld %1, %2 # atomic64_add_return \n"
- " daddu %0, %1, %3 \n"
- " scd %0, %2 \n"
- " beqz %0, 2f \n"
- " daddu %0, %1, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (result), "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " lld %1, %2 # atomic64_add_return \n"
+ " daddu %0, %1, %3 \n"
+ " scd %0, %2 \n"
+ " .set mips0 \n"
+ : "=&r" (result), "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter)
+ : "memory");
+ } while (unlikely(!result));
+
+ result = temp + i;
} else {
unsigned long flags;
} else if (kernel_uses_llsc) {
long temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: lld %1, %2 # atomic64_sub_return \n"
- " dsubu %0, %1, %3 \n"
- " scd %0, %2 \n"
- " beqz %0, 2f \n"
- " dsubu %0, %1, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (result), "=&r" (temp), "=m" (v->counter)
- : "Ir" (i), "m" (v->counter)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " lld %1, %2 # atomic64_sub_return \n"
+ " dsubu %0, %1, %3 \n"
+ " scd %0, %2 \n"
+ " .set mips0 \n"
+ : "=&r" (result), "=&r" (temp), "=m" (v->counter)
+ : "Ir" (i), "m" (v->counter)
+ : "memory");
+ } while (unlikely(!result));
+
+ result = temp - i;
} else {
unsigned long flags;
" bltz %0, 1f \n"
" scd %0, %2 \n"
" .set noreorder \n"
- " beqz %0, 2f \n"
+ " beqz %0, 1b \n"
" dsubu %0, %1, %3 \n"
" .set reorder \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
"1: \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "ir" (1UL << bit), "m" (*m));
#ifdef CONFIG_CPU_MIPSR2
} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
- __asm__ __volatile__(
- "1: " __LL "%0, %1 # set_bit \n"
- " " __INS "%0, %4, %2, 1 \n"
- " " __SC "%0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- : "=&r" (temp), "=m" (*m)
- : "ir" (bit), "m" (*m), "r" (~0));
+ do {
+ __asm__ __volatile__(
+ " " __LL "%0, %1 # set_bit \n"
+ " " __INS "%0, %3, %2, 1 \n"
+ " " __SC "%0, %1 \n"
+ : "=&r" (temp), "+m" (*m)
+ : "ir" (bit), "r" (~0));
+ } while (unlikely(!temp));
#endif /* CONFIG_CPU_MIPSR2 */
} else if (kernel_uses_llsc) {
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: " __LL "%0, %1 # set_bit \n"
- " or %0, %2 \n"
- " " __SC "%0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (temp), "=m" (*m)
- : "ir" (1UL << bit), "m" (*m));
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " " __LL "%0, %1 # set_bit \n"
+ " or %0, %2 \n"
+ " " __SC "%0, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "+m" (*m)
+ : "ir" (1UL << bit));
+ } while (unlikely(!temp));
} else {
volatile unsigned long *a = addr;
unsigned long mask;
" " __SC "%0, %1 \n"
" beqzl %0, 1b \n"
" .set mips0 \n"
- : "=&r" (temp), "=m" (*m)
- : "ir" (~(1UL << bit)), "m" (*m));
+ : "=&r" (temp), "+m" (*m)
+ : "ir" (~(1UL << bit)));
#ifdef CONFIG_CPU_MIPSR2
} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
- __asm__ __volatile__(
- "1: " __LL "%0, %1 # clear_bit \n"
- " " __INS "%0, $0, %2, 1 \n"
- " " __SC "%0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- : "=&r" (temp), "=m" (*m)
- : "ir" (bit), "m" (*m));
+ do {
+ __asm__ __volatile__(
+ " " __LL "%0, %1 # clear_bit \n"
+ " " __INS "%0, $0, %2, 1 \n"
+ " " __SC "%0, %1 \n"
+ : "=&r" (temp), "+m" (*m)
+ : "ir" (bit));
+ } while (unlikely(!temp));
#endif /* CONFIG_CPU_MIPSR2 */
} else if (kernel_uses_llsc) {
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: " __LL "%0, %1 # clear_bit \n"
- " and %0, %2 \n"
- " " __SC "%0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (temp), "=m" (*m)
- : "ir" (~(1UL << bit)), "m" (*m));
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " " __LL "%0, %1 # clear_bit \n"
+ " and %0, %2 \n"
+ " " __SC "%0, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "+m" (*m)
+ : "ir" (~(1UL << bit)));
+ } while (unlikely(!temp));
} else {
volatile unsigned long *a = addr;
unsigned long mask;
" " __SC "%0, %1 \n"
" beqzl %0, 1b \n"
" .set mips0 \n"
- : "=&r" (temp), "=m" (*m)
- : "ir" (1UL << bit), "m" (*m));
+ : "=&r" (temp), "+m" (*m)
+ : "ir" (1UL << bit));
} else if (kernel_uses_llsc) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
- __asm__ __volatile__(
- " .set mips3 \n"
- "1: " __LL "%0, %1 # change_bit \n"
- " xor %0, %2 \n"
- " " __SC "%0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- " .set mips0 \n"
- : "=&r" (temp), "=m" (*m)
- : "ir" (1UL << bit), "m" (*m));
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " " __LL "%0, %1 # change_bit \n"
+ " xor %0, %2 \n"
+ " " __SC "%0, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "+m" (*m)
+ : "ir" (1UL << bit));
+ } while (unlikely(!temp));
} else {
volatile unsigned long *a = addr;
unsigned long mask;
" beqzl %2, 1b \n"
" and %2, %0, %3 \n"
" .set mips0 \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
: "memory");
} else if (kernel_uses_llsc) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
- __asm__ __volatile__(
- " .set push \n"
- " .set noreorder \n"
- " .set mips3 \n"
- "1: " __LL "%0, %1 # test_and_set_bit \n"
- " or %2, %0, %3 \n"
- " " __SC "%2, %1 \n"
- " beqz %2, 2f \n"
- " and %2, %0, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " nop \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " " __LL "%0, %1 # test_and_set_bit \n"
+ " or %2, %0, %3 \n"
+ " " __SC "%2, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
+ : "memory");
+ } while (unlikely(!res));
+
+ res = temp & (1UL << bit);
} else {
volatile unsigned long *a = addr;
unsigned long mask;
" beqzl %2, 1b \n"
" and %2, %0, %3 \n"
" .set mips0 \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
: "memory");
} else if (kernel_uses_llsc) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
- __asm__ __volatile__(
- " .set push \n"
- " .set noreorder \n"
- " .set mips3 \n"
- "1: " __LL "%0, %1 # test_and_set_bit \n"
- " or %2, %0, %3 \n"
- " " __SC "%2, %1 \n"
- " beqz %2, 2f \n"
- " and %2, %0, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " nop \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " " __LL "%0, %1 # test_and_set_bit \n"
+ " or %2, %0, %3 \n"
+ " " __SC "%2, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
+ : "memory");
+ } while (unlikely(!res));
+
+ res = temp & (1UL << bit);
} else {
volatile unsigned long *a = addr;
unsigned long mask;
" beqzl %2, 1b \n"
" and %2, %0, %3 \n"
" .set mips0 \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
: "memory");
#ifdef CONFIG_CPU_MIPSR2
} else if (kernel_uses_llsc && __builtin_constant_p(nr)) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
- __asm__ __volatile__(
- "1: " __LL "%0, %1 # test_and_clear_bit \n"
- " " __EXT "%2, %0, %3, 1 \n"
- " " __INS "%0, $0, %3, 1 \n"
- " " __SC "%0, %1 \n"
- " beqz %0, 2f \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " .previous \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "ir" (bit), "m" (*m)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " " __LL "%0, %1 # test_and_clear_bit \n"
+ " " __EXT "%2, %0, %3, 1 \n"
+ " " __INS "%0, $0, %3, 1 \n"
+ " " __SC "%0, %1 \n"
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "ir" (bit)
+ : "memory");
+ } while (unlikely(!temp));
#endif
} else if (kernel_uses_llsc) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
- __asm__ __volatile__(
- " .set push \n"
- " .set noreorder \n"
- " .set mips3 \n"
- "1: " __LL "%0, %1 # test_and_clear_bit \n"
- " or %2, %0, %3 \n"
- " xor %2, %3 \n"
- " " __SC "%2, %1 \n"
- " beqz %2, 2f \n"
- " and %2, %0, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " nop \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " " __LL "%0, %1 # test_and_clear_bit \n"
+ " or %2, %0, %3 \n"
+ " xor %2, %3 \n"
+ " " __SC "%2, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
+ : "memory");
+ } while (unlikely(!res));
+
+ res = temp & (1UL << bit);
} else {
volatile unsigned long *a = addr;
unsigned long mask;
" beqzl %2, 1b \n"
" and %2, %0, %3 \n"
" .set mips0 \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
: "memory");
} else if (kernel_uses_llsc) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
- __asm__ __volatile__(
- " .set push \n"
- " .set noreorder \n"
- " .set mips3 \n"
- "1: " __LL "%0, %1 # test_and_change_bit \n"
- " xor %2, %0, %3 \n"
- " " __SC "\t%2, %1 \n"
- " beqz %2, 2f \n"
- " and %2, %0, %3 \n"
- " .subsection 2 \n"
- "2: b 1b \n"
- " nop \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (temp), "=m" (*m), "=&r" (res)
- : "r" (1UL << bit), "m" (*m)
- : "memory");
+ do {
+ __asm__ __volatile__(
+ " .set mips3 \n"
+ " " __LL "%0, %1 # test_and_change_bit \n"
+ " xor %2, %0, %3 \n"
+ " " __SC "\t%2, %1 \n"
+ " .set mips0 \n"
+ : "=&r" (temp), "+m" (*m), "=&r" (res)
+ : "r" (1UL << bit)
+ : "memory");
+ } while (unlikely(!res));
+
+ res = temp & (1UL << bit);
} else {
volatile unsigned long *a = addr;
unsigned long mask;
*/
extern void plat_mem_setup(void);
+#ifdef CONFIG_SWIOTLB
+/*
+ * Optional platform hook to call swiotlb_setup().
+ */
+extern void plat_swiotlb_setup(void);
+
+#else
+
+static inline void plat_swiotlb_setup(void) {}
+
+#endif /* CONFIG_SWIOTLB */
+
#endif /* _ASM_BOOTINFO_H */
" move $1, %z4 \n" \
" .set mips3 \n" \
" " st " $1, %1 \n" \
- " beqz $1, 3f \n" \
- "2: \n" \
- " .subsection 2 \n" \
- "3: b 1b \n" \
- " .previous \n" \
+ " beqz $1, 1b \n" \
" .set pop \n" \
+ "2: \n" \
: "=&r" (__ret), "=R" (*m) \
: "R" (*m), "Jr" (old), "Jr" (new) \
: "memory"); \
* These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
*/
-#define PRID_IMP_BCM4710 0x4000
-#define PRID_IMP_BCM3302 0x9000
-#define PRID_IMP_BCM6338 0x9000
-#define PRID_IMP_BCM6345 0x8000
-#define PRID_IMP_BCM6348 0x9100
-#define PRID_IMP_BCM4350 0xA000
-#define PRID_REV_BCM6358 0x0010
-#define PRID_REV_BCM6368 0x0030
+#define PRID_IMP_BMIPS4KC 0x4000
+#define PRID_IMP_BMIPS32 0x8000
+#define PRID_IMP_BMIPS3300 0x9000
+#define PRID_IMP_BMIPS3300_ALT 0x9100
+#define PRID_IMP_BMIPS3300_BUG 0x0000
+#define PRID_IMP_BMIPS43XX 0xa000
+#define PRID_IMP_BMIPS5000 0x5a00
+
+#define PRID_REV_BMIPS4380_LO 0x0040
+#define PRID_REV_BMIPS4380_HI 0x006f
/*
* These are the PRID's for when 23:16 == PRID_COMP_CAVIUM
#define PRID_IMP_CAVIUM_CN56XX 0x0400
#define PRID_IMP_CAVIUM_CN50XX 0x0600
#define PRID_IMP_CAVIUM_CN52XX 0x0700
+#define PRID_IMP_CAVIUM_CN63XX 0x9000
/*
* These are the PRID's for when 23:16 == PRID_COMP_INGENIC
* MIPS32 class processors
*/
CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
- CPU_ALCHEMY, CPU_PR4450, CPU_BCM3302, CPU_BCM4710,
- CPU_BCM6338, CPU_BCM6345, CPU_BCM6348, CPU_BCM6358,
- CPU_JZRISC,
+ CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
+ CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC,
/*
* MIPS64 class processors
*/
CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
- CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
+ CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS, CPU_CAVIUM_OCTEON2,
CPU_LAST
};
*
* This file is released under the GPLv2
*/
-#include <asm-generic/device.h>
+#ifndef _ASM_MIPS_DEVICE_H
+#define _ASM_MIPS_DEVICE_H
+
+struct dma_map_ops;
+
+struct dev_archdata {
+ /* DMA operations on that device */
+ struct dma_map_ops *dma_ops;
+};
+
+struct pdev_archdata {
+};
+
+#endif /* _ASM_MIPS_DEVICE_H*/
#include <asm/cache.h>
#include <asm-generic/dma-coherent.h>
-void *dma_alloc_noncoherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag);
+#include <dma-coherence.h>
-void dma_free_noncoherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
+extern struct dma_map_ops *mips_dma_map_ops;
-void *dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag);
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+ if (dev && dev->archdata.dma_ops)
+ return dev->archdata.dma_ops;
+ else
+ return mips_dma_map_ops;
+}
-void dma_free_coherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+ if (!dev->dma_mask)
+ return 0;
-extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
- enum dma_data_direction direction);
-extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
- size_t size, enum dma_data_direction direction);
-extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction);
-extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size, enum dma_data_direction direction);
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
- size_t size, enum dma_data_direction direction)
+ return addr + size <= *dev->dma_mask;
+}
+
+static inline void dma_mark_clean(void *addr, size_t size) {}
+
+#include <asm-generic/dma-mapping-common.h>
+
+static inline int dma_supported(struct device *dev, u64 mask)
{
- dma_unmap_single(dev, dma_address, size, direction);
+ struct dma_map_ops *ops = get_dma_ops(dev);
+ return ops->dma_supported(dev, mask);
}
-extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
- int nhwentries, enum dma_data_direction direction);
-extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction direction);
-extern void dma_sync_single_for_device(struct device *dev,
- dma_addr_t dma_handle, size_t size, enum dma_data_direction direction);
-extern void dma_sync_single_range_for_cpu(struct device *dev,
- dma_addr_t dma_handle, unsigned long offset, size_t size,
- enum dma_data_direction direction);
-extern void dma_sync_single_range_for_device(struct device *dev,
- dma_addr_t dma_handle, unsigned long offset, size_t size,
- enum dma_data_direction direction);
-extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction direction);
-extern void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction direction);
-extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
-extern int dma_supported(struct device *dev, u64 mask);
+static inline int dma_mapping_error(struct device *dev, u64 mask)
+{
+ struct dma_map_ops *ops = get_dma_ops(dev);
+ return ops->mapping_error(dev, mask);
+}
static inline int
dma_set_mask(struct device *dev, u64 mask)
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp)
+{
+ void *ret;
+ struct dma_map_ops *ops = get_dma_ops(dev);
+
+ ret = ops->alloc_coherent(dev, size, dma_handle, gfp);
+
+ debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
+
+ return ret;
+}
+
+static inline void dma_free_coherent(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle)
+{
+ struct dma_map_ops *ops = get_dma_ops(dev);
+
+ ops->free_coherent(dev, size, vaddr, dma_handle);
+
+ debug_dma_free_coherent(dev, size, vaddr, dma_handle);
+}
+
+
+void *dma_alloc_noncoherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag);
+
+void dma_free_noncoherent(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle);
+
#endif /* _ASM_DMA_MAPPING_H */
#define MAX_DMA_ADDRESS (PAGE_OFFSET + 0x01000000)
#endif
#define MAX_DMA_PFN PFN_DOWN(virt_to_phys((void *)MAX_DMA_ADDRESS))
+
+#ifndef MAX_DMA32_PFN
#define MAX_DMA32_PFN (1UL << (32 - PAGE_SHIFT))
+#endif
/* 8237 DMA controllers */
#define IO_DMA1_BASE 0x00 /* 8 bit slave DMA, channels 0..3 */
#define local_cmpxchg(l, o, n) \
((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
-#define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
+#define local_xchg(l, n) (atomic_long_xchg((&(l)->a), (n)))
/**
* local_add_unless - add unless the number is a given value
#define AR7_REGS_UART0 (AR7_REGS_BASE + 0x0e00)
#define AR7_REGS_USB (AR7_REGS_BASE + 0x1200)
#define AR7_REGS_RESET (AR7_REGS_BASE + 0x1600)
+#define AR7_REGS_PINSEL (AR7_REGS_BASE + 0x160C)
#define AR7_REGS_VLYNQ0 (AR7_REGS_BASE + 0x1800)
#define AR7_REGS_DCL (AR7_REGS_BASE + 0x1a00)
#define AR7_REGS_VLYNQ1 (AR7_REGS_BASE + 0x1c00)
#define UR8_REGS_WDT (AR7_REGS_BASE + 0x0b00)
#define UR8_REGS_UART1 (AR7_REGS_BASE + 0x0f00)
+/* Titan registers */
+#define TITAN_REGS_ESWITCH_BASE (0x08640000)
+#define TITAN_REGS_MAC0 (TITAN_REGS_ESWITCH_BASE)
+#define TITAN_REGS_MAC1 (TITAN_REGS_ESWITCH_BASE + 0x0800)
+#define TITAN_REGS_MDIO (TITAN_REGS_ESWITCH_BASE + 0x02000)
+#define TITAN_REGS_VLYNQ0 (AR7_REGS_BASE + 0x1c00)
+#define TITAN_REGS_VLYNQ1 (AR7_REGS_BASE + 0x1300)
+
#define AR7_RESET_PERIPHERAL 0x0
#define AR7_RESET_SOFTWARE 0x4
#define AR7_RESET_STATUS 0x8
#define AR7_RESET_BIT_MDIO 22
#define AR7_RESET_BIT_EPHY 26
+#define TITAN_RESET_BIT_EPHY1 28
+
/* GPIO control registers */
#define AR7_GPIO_INPUT 0x0
#define AR7_GPIO_OUTPUT 0x4
#define AR7_GPIO_DIR 0x8
#define AR7_GPIO_ENABLE 0xc
+#define TITAN_GPIO_INPUT_0 0x0
+#define TITAN_GPIO_INPUT_1 0x4
+#define TITAN_GPIO_OUTPUT_0 0x8
+#define TITAN_GPIO_OUTPUT_1 0xc
+#define TITAN_GPIO_DIR_0 0x10
+#define TITAN_GPIO_DIR_1 0x14
+#define TITAN_GPIO_ENBL_0 0x18
+#define TITAN_GPIO_ENBL_1 0x1c
#define AR7_CHIP_7100 0x18
#define AR7_CHIP_7200 0x2b
#define AR7_CHIP_7300 0x05
+#define AR7_CHIP_TITAN 0x07
+#define TITAN_CHIP_1050 0x0f
+#define TITAN_CHIP_1055 0x0e
+#define TITAN_CHIP_1056 0x0d
+#define TITAN_CHIP_1060 0x07
/* Interrupts */
#define AR7_IRQ_UART0 15
extern int ar7_cpu_clock, ar7_bus_clock, ar7_dsp_clock;
+static inline int ar7_is_titan(void)
+{
+ return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x24)) & 0xffff) ==
+ AR7_CHIP_TITAN;
+}
+
static inline u16 ar7_chip_id(void)
{
- return readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x14)) & 0xffff;
+ return ar7_is_titan() ? AR7_CHIP_TITAN : (readl((void *)
+ KSEG1ADDR(AR7_REGS_GPIO + 0x14)) & 0xffff);
+}
+
+static inline u16 titan_chip_id(void)
+{
+ unsigned int val = readl((void *)KSEG1ADDR(AR7_REGS_GPIO +
+ TITAN_GPIO_INPUT_1));
+ return ((val >> 12) & 0x0f);
}
static inline u8 ar7_chip_rev(void)
{
- return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x14)) >> 16) & 0xff;
+ return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + (ar7_is_titan() ? 0x24 :
+ 0x14))) >> 16) & 0xff;
}
struct clk {
msleep(20);
}
+int __init ar7_gpio_init(void);
+
+int __init ar7_gpio_init(void);
+
#endif /* __AR7_H__ */
#include <asm/mach-ar7/ar7.h>
#define AR7_GPIO_MAX 32
-#define NR_BUILTIN_GPIO AR7_GPIO_MAX
+#define TITAN_GPIO_MAX 51
+#define NR_BUILTIN_GPIO TITAN_GPIO_MAX
#define gpio_to_irq(gpio) -1
#define cpu_has_veic 0
#define cpu_hwrena_impl_bits 0xc0000000
-#define kernel_uses_smartmips_rixi (cpu_data[0].cputype == CPU_CAVIUM_OCTEON_PLUS)
+#define kernel_uses_smartmips_rixi (cpu_data[0].cputype != CPU_CAVIUM_OCTEON)
#define ARCH_HAS_IRQ_PER_CPU 1
#define ARCH_HAS_SPINLOCK_PREFETCH 1
return id >= 0x000d0300;
}
+/*
+ * The last 256MB are reserved for device to device mappings and the
+ * BAR1 hole.
+ */
+#define MAX_DMA32_PFN (((1ULL << 32) - (1ULL << 28)) >> PAGE_SHIFT)
+
#endif
struct device;
-dma_addr_t octeon_map_dma_mem(struct device *, void *, size_t);
-void octeon_unmap_dma_mem(struct device *, dma_addr_t);
+extern void octeon_pci_dma_init(void);
static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
size_t size)
{
- return octeon_map_dma_mem(dev, addr, size);
+ BUG();
}
static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
struct page *page)
{
- return octeon_map_dma_mem(dev, page_address(page), PAGE_SIZE);
+ BUG();
}
static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
dma_addr_t dma_addr)
{
- return dma_addr;
+ BUG();
}
static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction)
{
- octeon_unmap_dma_mem(dev, dma_addr);
+ BUG();
}
static inline int plat_dma_supported(struct device *dev, u64 mask)
{
- return 1;
+ BUG();
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
- mb();
+ BUG();
}
static inline int plat_device_is_coherent(struct device *dev)
static inline int plat_dma_mapping_error(struct device *dev,
dma_addr_t dma_addr)
{
- return dma_addr == -1;
+ BUG();
}
+dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+
+struct dma_map_ops;
+extern struct dma_map_ops *octeon_pci_dma_map_ops;
+extern char *octeon_swiotlb;
+
#endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */
return pa;
}
-static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
+static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
+ struct page *page)
{
dma_addr_t pa = dev_to_baddr(dev, page_to_phys(page));
return pa;
}
-static unsigned long plat_dma_addr_to_phys(struct device *dev,
+static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
dma_addr_t dma_addr)
{
return dma_addr & ~(0xffUL << 56);
return pa;
}
-static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
+static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
+ struct page *page)
{
dma_addr_t pa;
}
/* This is almost certainly wrong but it's what dma-ip32.c used to use */
-static unsigned long plat_dma_addr_to_phys(struct device *dev,
+static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
dma_addr_t dma_addr)
{
unsigned long addr = dma_addr & RAM_OFFSET_MASK;
struct device;
-static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
{
return vdma_alloc(virt_to_phys(addr), size);
}
-static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
+static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
+ struct page *page)
{
return vdma_alloc(page_to_phys(page), PAGE_SIZE);
}
-static unsigned long plat_dma_addr_to_phys(struct device *dev,
+static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
dma_addr_t dma_addr)
{
return vdma_log2phys(dma_addr);
}
-static void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
+static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction)
{
vdma_free(dma_addr);
#define read_c0_dtaglo() __read_32bit_c0_register($28, 2)
#define write_c0_dtaglo(val) __write_32bit_c0_register($28, 2, val)
+#define read_c0_ddatalo() __read_32bit_c0_register($28, 3)
+#define write_c0_ddatalo(val) __write_32bit_c0_register($28, 3, val)
+
+#define read_c0_staglo() __read_32bit_c0_register($28, 4)
+#define write_c0_staglo(val) __write_32bit_c0_register($28, 4, val)
+
#define read_c0_taghi() __read_32bit_c0_register($29, 0)
#define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val)
#define read_octeon_c0_dcacheerr() __read_64bit_c0_register($27, 1)
#define write_octeon_c0_dcacheerr(val) __write_64bit_c0_register($27, 1, val)
+/* BMIPS3300 */
+#define read_c0_brcm_config_0() __read_32bit_c0_register($22, 0)
+#define write_c0_brcm_config_0(val) __write_32bit_c0_register($22, 0, val)
+
+#define read_c0_brcm_bus_pll() __read_32bit_c0_register($22, 4)
+#define write_c0_brcm_bus_pll(val) __write_32bit_c0_register($22, 4, val)
+
+#define read_c0_brcm_reset() __read_32bit_c0_register($22, 5)
+#define write_c0_brcm_reset(val) __write_32bit_c0_register($22, 5, val)
+
+/* BMIPS4380 */
+#define read_c0_brcm_cmt_intr() __read_32bit_c0_register($22, 1)
+#define write_c0_brcm_cmt_intr(val) __write_32bit_c0_register($22, 1, val)
+
+#define read_c0_brcm_cmt_ctrl() __read_32bit_c0_register($22, 2)
+#define write_c0_brcm_cmt_ctrl(val) __write_32bit_c0_register($22, 2, val)
+
+#define read_c0_brcm_cmt_local() __read_32bit_c0_register($22, 3)
+#define write_c0_brcm_cmt_local(val) __write_32bit_c0_register($22, 3, val)
+
+#define read_c0_brcm_config_1() __read_32bit_c0_register($22, 5)
+#define write_c0_brcm_config_1(val) __write_32bit_c0_register($22, 5, val)
+
+#define read_c0_brcm_cbr() __read_32bit_c0_register($22, 6)
+#define write_c0_brcm_cbr(val) __write_32bit_c0_register($22, 6, val)
+
+/* BMIPS5000 */
+#define read_c0_brcm_config() __read_32bit_c0_register($22, 0)
+#define write_c0_brcm_config(val) __write_32bit_c0_register($22, 0, val)
+
+#define read_c0_brcm_mode() __read_32bit_c0_register($22, 1)
+#define write_c0_brcm_mode(val) __write_32bit_c0_register($22, 1, val)
+
+#define read_c0_brcm_action() __read_32bit_c0_register($22, 2)
+#define write_c0_brcm_action(val) __write_32bit_c0_register($22, 2, val)
+
+#define read_c0_brcm_edsp() __read_32bit_c0_register($22, 3)
+#define write_c0_brcm_edsp(val) __write_32bit_c0_register($22, 3, val)
+
+#define read_c0_brcm_bootvec() __read_32bit_c0_register($22, 4)
+#define write_c0_brcm_bootvec(val) __write_32bit_c0_register($22, 4, val)
+
+#define read_c0_brcm_sleepcount() __read_32bit_c0_register($22, 7)
+#define write_c0_brcm_sleepcount(val) __write_32bit_c0_register($22, 7, val)
+
/*
* Macros to access the floating point coprocessor control registers
*/
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
- * Copyright (c) 2003-2008 Cavium Networks
+ * Copyright (c) 2003-2010 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
#ifndef __CVMX_AGL_DEFS_H__
#define __CVMX_AGL_DEFS_H__
-#define CVMX_AGL_GMX_BAD_REG \
- CVMX_ADD_IO_SEG(0x00011800E0000518ull)
-#define CVMX_AGL_GMX_BIST \
- CVMX_ADD_IO_SEG(0x00011800E0000400ull)
-#define CVMX_AGL_GMX_DRV_CTL \
- CVMX_ADD_IO_SEG(0x00011800E00007F0ull)
-#define CVMX_AGL_GMX_INF_MODE \
- CVMX_ADD_IO_SEG(0x00011800E00007F8ull)
-#define CVMX_AGL_GMX_PRTX_CFG(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000010ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CAM0(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000180ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CAM1(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000188ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CAM2(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000190ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CAM3(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000198ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CAM4(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00001A0ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CAM5(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00001A8ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CAM_EN(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000108ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_ADR_CTL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000100ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_DECISION(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000040ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_FRM_CHK(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000020ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_FRM_CTL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000018ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_FRM_MAX(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000030ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_FRM_MIN(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000028ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_IFG(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000058ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_INT_EN(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000008ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_INT_REG(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000000ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_JABBER(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000038ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_PAUSE_DROP_TIME(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000068ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_CTL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000050ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_OCTS(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000088ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_OCTS_CTL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000098ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_OCTS_DMAC(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00000A8ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_OCTS_DRP(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00000B8ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_PKTS(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000080ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_PKTS_BAD(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00000C0ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_PKTS_CTL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000090ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_PKTS_DMAC(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00000A0ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_STATS_PKTS_DRP(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00000B0ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RXX_UDD_SKP(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000048ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_RX_BP_DROPX(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000420ull + (((offset) & 1) * 8))
-#define CVMX_AGL_GMX_RX_BP_OFFX(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000460ull + (((offset) & 1) * 8))
-#define CVMX_AGL_GMX_RX_BP_ONX(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000440ull + (((offset) & 1) * 8))
-#define CVMX_AGL_GMX_RX_PRT_INFO \
- CVMX_ADD_IO_SEG(0x00011800E00004E8ull)
-#define CVMX_AGL_GMX_RX_TX_STATUS \
- CVMX_ADD_IO_SEG(0x00011800E00007E8ull)
-#define CVMX_AGL_GMX_SMACX(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000230ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_STAT_BP \
- CVMX_ADD_IO_SEG(0x00011800E0000520ull)
-#define CVMX_AGL_GMX_TXX_APPEND(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000218ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_CTL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000270ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_MIN_PKT(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000240ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_PAUSE_PKT_INTERVAL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000248ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_PAUSE_PKT_TIME(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000238ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_PAUSE_TOGO(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000258ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_PAUSE_ZERO(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000260ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_SOFT_PAUSE(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000250ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT0(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000280ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT1(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000288ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT2(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000290ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT3(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000298ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT4(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00002A0ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT5(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00002A8ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT6(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00002B0ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT7(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00002B8ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT8(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00002C0ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STAT9(offset) \
- CVMX_ADD_IO_SEG(0x00011800E00002C8ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_STATS_CTL(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000268ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TXX_THRESH(offset) \
- CVMX_ADD_IO_SEG(0x00011800E0000210ull + (((offset) & 1) * 2048))
-#define CVMX_AGL_GMX_TX_BP \
- CVMX_ADD_IO_SEG(0x00011800E00004D0ull)
-#define CVMX_AGL_GMX_TX_COL_ATTEMPT \
- CVMX_ADD_IO_SEG(0x00011800E0000498ull)
-#define CVMX_AGL_GMX_TX_IFG \
- CVMX_ADD_IO_SEG(0x00011800E0000488ull)
-#define CVMX_AGL_GMX_TX_INT_EN \
- CVMX_ADD_IO_SEG(0x00011800E0000508ull)
-#define CVMX_AGL_GMX_TX_INT_REG&nbs
projects / ~shefty / rdma-dev.git / commitdiff