RALINK MIPS ARCHITECTURE
M: John Crispin <john@phrozen.org>
+M: Sergio Paracuellos <sergio.paracuellos@gmail.com>
L: linux-mips@vger.kernel.org
S: Maintained
F: arch/mips/ralink
i2c_register_board_info(0, db1200_i2c_devs,
ARRAY_SIZE(db1200_i2c_devs));
spi_register_board_info(db1200_spi_devs,
- ARRAY_SIZE(db1200_i2c_devs));
+ ARRAY_SIZE(db1200_spi_devs));
/* SWITCHES: S6.8 I2C/SPI selector (OFF=I2C ON=SPI)
* S6.7 AC97/I2S selector (OFF=AC97 ON=I2S)
i2c_register_board_info(0, db1550_i2c_devs,
ARRAY_SIZE(db1550_i2c_devs));
spi_register_board_info(db1550_spi_devs,
- ARRAY_SIZE(db1550_i2c_devs));
+ ARRAY_SIZE(db1550_spi_devs));
c = clk_get(NULL, "psc0_intclk");
if (!IS_ERR(c)) {
bcm47xx_buttons_buffalo_whr_g125[] __initconst = {
BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
BCM47XX_GPIO_KEY(4, KEY_RESTART),
- BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode swtich */
+ BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode switch */
};
static const struct gpio_keys_button
bcm47xx_buttons_buffalo_whr_g54s[] __initconst = {
BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
BCM47XX_GPIO_KEY_H(4, KEY_RESTART),
- BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode swtich */
+ BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode switch */
};
static const struct gpio_keys_button
bcm47xx_buttons_buffalo_whr_hp_g54[] __initconst = {
BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
BCM47XX_GPIO_KEY(4, KEY_RESTART),
- BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode swtich */
+ BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode switch */
};
static const struct gpio_keys_button
}
if (enable) {
- /* reset switch core afer clock change */
+ /* reset switch core after clock change */
bcm63xx_core_set_reset(BCM63XX_RESET_ENETSW, 1);
msleep(10);
bcm63xx_core_set_reset(BCM63XX_RESET_ENETSW, 0);
bcm_hwclock_set(CKCTL_6368_SAR_EN, enable);
if (enable) {
- /* reset sar core afer clock change */
+ /* reset sar core after clock change */
bcm63xx_core_set_reset(BCM63XX_RESET_SAR, 1);
mdelay(1);
bcm63xx_core_set_reset(BCM63XX_RESET_SAR, 0);
* MIPS-specific debug support for pre-boot environment
*
* NOTE: putc() is board specific, if your board have a 16550 compatible uart,
- * please select SYS_SUPPORTS_ZBOOT_UART16550 for your machine. othewise, you
+ * please select SYS_SUPPORTS_ZBOOT_UART16550 for your machine. otherwise, you
* need to implement your own putc().
*/
#include <linux/compiler.h>
/* Clear BSS */
PTR_LA a0, _edata
PTR_LA a2, _end
-1: sw zero, 0(a0)
- addiu a0, a0, 4
+1: PTR_S zero, 0(a0)
+ PTR_ADDIU a0, a0, PTRSIZE
bne a2, a0, 1b
PTR_LA a0, (.heap) /* heap address */
efh.f_symptr = 0;
efh.f_nsyms = 0;
efh.f_opthdr = sizeof eah;
- efh.f_flags = 0x100f; /* Stripped, not sharable. */
+ efh.f_flags = 0x100f; /* Stripped, not shareable. */
memset(esecs, 0, sizeof esecs);
strcpy(esecs[0].s_name, ".text");
unsigned long long notrace sched_clock(void)
{
- /* 64-bit arithmatic can overflow, so use 128-bit. */
+ /* 64-bit arithmetic can overflow, so use 128-bit. */
u64 t1, t2, t3;
unsigned long long rv;
u64 mult = clocksource_mips.mult;
uint64_t v = _cvmx_bootvector_data[i];
if (OCTEON_IS_OCTEON1PLUS() && (i == 0 || i == 7))
- v &= 0xffffffff00000000ull; /* KScratch not availble. */
+ v &= 0xffffffff00000000ull; /* KScratch not available */
cvmx_write_csr(CVMX_MIO_BOOT_LOC_ADR, i * 8);
cvmx_write_csr(CVMX_MIO_BOOT_LOC_DAT, v);
}
* Convert !0 address_min and 0 address_max to special case of
* range that specifies an exact memory block to allocate. Do
* this before other checks and adjustments so that this
- * tranformation will be validated.
+ * transformation will be validated.
*/
if (address_min && !address_max)
address_max = address_min + req_size;
}
/*
- * Shutdown a queue a free it's command buffers to the FPA. The
+ * Shutdown a queue and free its command buffers to the FPA. The
* hardware connected to the queue must be stopped before this
* function is called.
*
/*
* Return the command buffer to be written to. The purpose of this
- * function is to allow CVMX routine access t othe low level buffer
+ * function is to allow CVMX routine access to the low level buffer
* for initial hardware setup. User applications should not call this
* function directly.
*
/**
* Shift long sequences of zeros into the QLM JTAG chain. It is
* common to need to shift more than 32 bits of zeros into the
- * chain. This function is a convience wrapper around
+ * chain. This function is a convenience wrapper around
* cvmx_helper_qlm_jtag_shift() to shift more than 32 bits of
* zeros at a time.
*
/*
* Each packet has a 12 bytes of interframe gap, an 8 byte
* preamble, and a 4 byte CRC. These are not included in the
- * per word count. Multiply by 8 to covert to bits and divide
+ * per word count. Multiply by 8 to convert to bits and divide
* by 256 for limit granularity.
*/
pko_mem_port_rate0.s.rate_pkt = (12 + 8 + 4) * 8 * tokens_per_bit / 256;
* zero.
*/
- /* Asume that CS1 immediately follows. */
+ /* Assume that CS1 immediately follows. */
mio_boot_reg_cfg.u64 =
cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs + 1));
region1_base = mio_boot_reg_cfg.s.base << 16;
/*
* For 64bit kernels working with a 32bit ARC PROM pointer arguments
* for ARC calls need to reside in CKEG0/1. But as soon as the kernel
- * switches to it's first kernel thread stack is set to an address in
+ * switches to its first kernel thread stack is set to an address in
* XKPHYS, so anything on stack can't be used anymore. This is solved
- * by using a * static declartion variables are put into BSS, which is
+ * by using a * static declaration variables are put into BSS, which is
* linked to a CKSEG0 address. Since this is only used on UP platforms
- * there is not spinlock needed
+ * there is no spinlock needed
*/
#define O32_STATIC static
#else
/*
* mips_debugfs_dir corresponds to the "mips" directory at the top level
- * of the DebugFS hierarchy. MIPS-specific DebugFS entires should be
+ * of the DebugFS hierarchy. MIPS-specific DebugFS entries should be
* placed beneath this directory.
*/
extern struct dentry *mips_debugfs_dir;
#include <linux/io.h>
#include <linux/memblock.h>
-#define dmi_early_remap(x, l) ioremap_cache(x, l)
+#define dmi_early_remap(x, l) ioremap(x, l)
#define dmi_early_unmap(x, l) iounmap(x)
#define dmi_remap(x, l) ioremap_cache(x, l)
#define dmi_unmap(x) iounmap(x)
* address is not guaranteed to be usable directly as a virtual
* address.
*
- * This version of ioremap ensures that the memory is marked cachable by
+ * This version of ioremap ensures that the memory is marked cacheable by
* the CPU. Also enables full write-combining. Useful for some
* memory-like regions on I/O busses.
*/
* address is not guaranteed to be usable directly as a virtual
* address.
*
- * This version of ioremap ensures that the memory is marked uncachable
+ * This version of ioremap ensures that the memory is marked uncacheable
* but accelerated by means of write-combining feature. It is specifically
* useful for PCIe prefetchable windows, which may vastly improve a
* communications performance. If it was determined on boot stage, what
if (!chan)
return;
/*
- * set_dma_mode is only allowed to change endianess, direction,
+ * set_dma_mode is only allowed to change endianness, direction,
* transfer size, device FIFO width, and coherency settings.
* Make sure anything else is masked off.
*/
/**
* alchemy_gpio2_enable - Activate GPIO2 block.
*
- * The GPIO2 block must be enabled excplicitly to work. On systems
+ * The GPIO2 block must be enabled explicitly to work. On systems
* where this isn't done by the bootloader, this macro can be used.
*/
static inline void alchemy_gpio2_enable(void)
#define ltq_sys1_w32_mask(clear, set, reg) \
ltq_sys1_w32((ltq_sys1_r32(reg) & ~(clear)) | (set), reg)
-/* allow the gpio and pinctrl drivers to talk to eachother */
+/* allow the gpio and pinctrl drivers to talk to each other */
extern int pinctrl_falcon_get_range_size(int id);
extern void pinctrl_falcon_add_gpio_range(struct pinctrl_gpio_range *range);
/* period between two check. (Unit: S) */
u8 adjust_period;
- /* fan adjust usually depend on a temprature input */
+ /* fan adjust usually depend on a temperature input */
get_temp_fun depend_temp;
/* up_step/down_step used when type is STEP_SPEED_POLICY */
#define LOONGSON_CSR_NODECNT 0x408
#define LOONGSON_CSR_CPUTEMP 0x428
-/* PerCore CSR, only accessable by local cores */
+/* PerCore CSR, only accessible by local cores */
#define LOONGSON_CSR_IPI_STATUS 0x1000
#define LOONGSON_CSR_IPI_EN 0x1004
#define LOONGSON_CSR_IPI_SET 0x1008
* The kernel is still located in 0x80000000(kseg0). However,
* the physical mask has been shifted to 0x80000000 which exploits the alias
* on the Malta board. As a result of which, we override the __pa_symbol
- * to peform direct mapping from virtual to physical addresses. In other
+ * to perform direct mapping from virtual to physical addresses. In other
* words, the 0x80000000 virtual address maps to 0x80000000 physical address
* which in turn aliases to 0x0. We do this in order to be able to use a flat
* 2GB of memory (0x80000000 - 0xffffffff) so we can avoid the I/O hole in
* 0x10000000 - 0x1fffffff.
* The last 64KB of physical memory are reserved for correct HIGHMEM
- * macros arithmetics.
+ * macros arithmetic.
*
*/
*/
/* Revision 1.48 autogenerated on 08/17/99 15:20:01 */
-/* This bonito64 version editted from bonito.h Revision 1.48 on 11/09/00 */
+/* This bonito64 version edited from bonito.h Revision 1.48 on 11/09/00 */
#ifndef _ASM_MIPS_BOARDS_BONITO64_H
#define _ASM_MIPS_BOARDS_BONITO64_H
* the CPC
*
* Returns the default physical base address of the Cluster Power Controller
- * memory mapped registers. This is platform dependant & must therefore be
+ * memory mapped registers. This is platform dependent & must therefore be
* implemented per-platform.
*/
extern phys_addr_t mips_cpc_default_phys_base(void);
/*
* R4640/R4650 cp0 register names. These registers are listed
- * here only for completeness; without MMU these CPUs are not useable
+ * here only for completeness; without MMU these CPUs are not usable
* by Linux. A future ELKS port might take make Linux run on them
* though ...
*/
#define EXCCODE_THREAD 25 /* Thread exceptions (MT) */
#define EXCCODE_DSPDIS 26 /* DSP disabled exception */
#define EXCCODE_GE 27 /* Virtualized guest exception (VZ) */
-#define EXCCODE_CACHEERR 30 /* Parity/ECC occured on a core */
+#define EXCCODE_CACHEERR 30 /* Parity/ECC occurred on a core */
/* Implementation specific trap codes used by MIPS cores */
#define MIPS_EXCCODE_TLBPAR 16 /* TLB parity error exception */
/*
* flags indicating various configuration options. These
- * flags supercede the 'flags' variable and should be used
+ * flags supersede the 'flags' variable and should be used
* instead if available.
*/
uint32_t config_flags;
/**
* This structure contains the global state of all command queues.
* It is stored in a bootmem named block and shared by all
- * applications running on Octeon. Tickets are stored in a differnet
+ * applications running on Octeon. Tickets are stored in a different
* cache line that queue information to reduce the contention on the
* ll/sc used to get a ticket. If this is not the case, the update
* of queue state causes the ll/sc to fail quite often.
int pool_size);
/**
- * Shutdown a queue a free it's command buffers to the FPA. The
+ * Shutdown a queue and free its command buffers to the FPA. The
* hardware connected to the queue must be stopped before this
* function is called.
*
/**
* Return the command buffer to be written to. The purpose of this
- * function is to allow CVMX routine access t othe low level buffer
+ * function is to allow CVMX routine access to the low level buffer
* for initial hardware setup. User applications should not call this
* function directly.
*
} cvmx_pko_status_t;
/**
- * This enumeration represents the differnet locking modes supported by PKO.
+ * This enumeration represents the different locking modes supported by PKO.
*/
typedef enum {
/*
* This function does NOT wait for previous tag switches to complete,
* so the caller must ensure that there is not a pending tag switch.
*
- * @wait: When set, call stalls until work becomes avaiable, or times out.
+ * @wait: When set, call stalls until work becomes available, or times out.
* If not set, returns immediately.
*
* Returns: the WQE pointer from POW. Returns NULL if no work
* This function waits for any previous tag switch to complete before
* requesting the new work.
*
- * @wait: When set, call stalls until work becomes avaiable, or times out.
+ * @wait: When set, call stalls until work becomes available, or times out.
* If not set, returns immediately.
*
* Returns: the WQE pointer from POW. Returns NULL if no work
#define OM_CHECK_SUBMODEL 0x02000000
/* Match all models previous than the one specified */
#define OM_MATCH_PREVIOUS_MODELS 0x04000000
-/* Ignores the minor revison on newer parts */
+/* Ignores the minor revision on newer parts */
#define OM_IGNORE_MINOR_REVISION 0x08000000
#define OM_FLAG_MASK 0xff000000
#define OCTEON_CN52XX_PASS2 OCTEON_CN52XX_PASS2_X
/*
- * CN3XXX models with old revision enconding
+ * CN3XXX models with old revision encoding
*/
#define OCTEON_CN38XX_PASS1 0x000d0000
#define OCTEON_CN38XX_PASS2 0x000d0001
if (IS_ENABLED(CONFIG_64BIT)) {
/*
* For MIPS64 the virtual address may either be in one of
- * the compatibility segements ckseg0 or ckseg1, or it may
+ * the compatibility segments ckseg0 or ckseg1, or it may
* be in xkphys.
*/
return x < CKSEG0 ? XPHYSADDR(x) : CPHYSADDR(x);
#ifdef CONFIG_PCI_DRIVERS_LEGACY
/*
- * Each pci channel is a top-level PCI bus seem by CPU. A machine with
+ * Each PCI channel is a top-level PCI bus seem by CPU. A machine with
* multiple PCI channels may have multiple PCI host controllers or a
* single controller supporting multiple channels.
*/
* The final layouts of the PTE bits are:
*
* 64-bit, R1 or earlier: CCC D V G [S H] M A W R P
- * 32-bit, R1 or earler: CCC D V G M A W R P
+ * 32-bit, R1 or earlier: CCC D V G M A W R P
* 64-bit, R2 or later: CCC D V G RI/R XI [S H] M A W P
* 32-bit, R2 or later: CCC D V G RI/R XI M A W P
*/
volatile u32 lbursttp; /* Time period for long bursts */
/* MC chip can drive up to 4 bank 4 SIMMs each. All SIMMs in bank must
- * be the same size. The size encoding for supported SIMMs is bellow */
+ * be the same size. The size encoding for supported SIMMs is below */
u32 _unused11[9];
volatile u32 mconfig0; /* Memory config register zero */
u32 _unused12;
/*
* TBD - Allocation issues.
*
- * Do we need to Mark off sepatate heaps for lboard_t, rboard_t, component,
+ * Do we need to Mark off separate heaps for lboard_t, rboard_t, component,
* errinfo and allocate from them, or have a single heap and allocate all
* structures from it. Debug is easier in the former method since we can
* dump all similar structs in one command, but there will be lots of holes,
*
* Ordering barriers can be more efficient than completion barriers, since:
*
- * a) Ordering barriers only require memory access instructions which preceed
+ * a) Ordering barriers only require memory access instructions which precede
* them in program order (older instructions) to reach a point in the
* load/store datapath beyond which reordering is not possible before
* allowing memory access instructions which follow them (younger
unsigned long flags; /* low level flags */
unsigned long tp_value; /* thread pointer */
__u32 cpu; /* current CPU */
- int preempt_count; /* 0 => preemptable, <0 => BUG */
+ int preempt_count; /* 0 => preemptible, <0 => BUG */
struct pt_regs *regs;
long syscall; /* syscall number */
};
*
* There is a suggested workaround and also the erratum can't strike if
* the compare interrupt isn't being used as the clock source device.
- * However for now the implementaton of this function doesn't get these
+ * However for now the implementation of this function doesn't get these
* fine details right.
*/
static inline int can_use_mips_counter(unsigned int prid)
#else
/*
* Get the base load address of the VDSO. We have to avoid generating
- * relocations and references to the GOT because ld.so does not peform
+ * relocations and references to the GOT because ld.so does not perform
* relocations on the VDSO. We use the current offset from the VDSO base
* and perform a PC-relative branch which gives the absolute address in
* ra, and take the difference. The assembler chokes on
#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */
#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */
-#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump,
+#define MADV_DONTDUMP 16 /* Explicitly exclude from core dump,
overrides the coredump filter bits */
#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */
unsigned long __unused5;
};
#else
-#warning no endianess set
+#warning no endianness set
#endif
#endif /* _ASM_MSGBUF_H */
* This processor doesn't have an MMU, so it's not
* "real easy" to run Linux on it. It is left purely
* for documentation. Commented out because it shares
- * it's c0_prid id number with the TX3900.
+ * its c0_prid id number with the TX3900.
*/
c->cputype = CPU_R4650;
__cpu_name[cpu] = "R4650";
.set push
.set noreorder
PTR_LA v1, except_vec_vi_handler
-FEXPORT(except_vec_vi_lui)
- lui v0, 0 /* Patched */
jr v1
FEXPORT(except_vec_vi_ori)
- ori v0, 0 /* Patched */
+ ori v0, zero, 0 /* Offset in vi_handlers[] */
.set pop
END(except_vec_vi)
EXPORT(except_vec_vi_end)
/*
* Common Vectored Interrupt code
- * Complete the register saves and invoke the handler which is passed in $v0
+ * Complete the register saves and invoke the handler, $v0 holds
+ * offset into vi_handlers[]
*/
NESTED(except_vec_vi_handler, 0, sp)
SAVE_TEMP
/* Save task's sp on IRQ stack so that unwinding can follow it */
LONG_S s1, 0(sp)
2:
+ PTR_L v0, vi_handlers(v0)
jalr v0
/* Restore sp */
* one; putting breakpoint on top of atomic ll/sc pair is bad idea;
* so we need to prevent it and refuse kprobes insertion for such
* instructions; cannot do much about breakpoint in the middle of
- * ll/sc pair; it is upto user to avoid those places
+ * ll/sc pair; it is up to user to avoid those places
*/
static int insn_has_ll_or_sc(union mips_instruction insn)
{
strscpy(mips_machine_name, name, sizeof(mips_machine_name));
pr_info("MIPS: machine is %s\n", mips_get_machine_name());
+
+ dump_stack_set_arch_desc(name);
}
char *mips_get_machine_name(void)
}
#endif /* CONFIG_USE_OF */
- /* Copy the kernel to it's new location */
+ /* Copy the kernel to its new location */
memcpy(loc_new, &_text, kernel_length);
/* Perform relocations on the new kernel */
done:
#ifdef CONFIG_SMP
/* kexec_flag reset is signal to other CPUs what kernel
- was moved to it's location. Note - we need relocated address
+ was moved to its location. Note - we need relocated address
of kexec_flag. */
bal 1f
/*
* Board specific code or command line parser should have
* already set up initrd_start and initrd_end. In these cases
- * perfom sanity checks and use them if all looks good.
+ * perform sanity checks and use them if all looks good.
*/
if (!initrd_start || initrd_end <= initrd_start)
goto disable;
panic("Incorrect memory mapping !!!");
if (max_pfn > PFN_DOWN(HIGHMEM_START)) {
+ max_low_pfn = PFN_DOWN(HIGHMEM_START);
#ifdef CONFIG_HIGHMEM
- highstart_pfn = PFN_DOWN(HIGHMEM_START);
+ highstart_pfn = max_low_pfn;
highend_pfn = max_pfn;
#else
- max_low_pfn = PFN_DOWN(HIGHMEM_START);
max_pfn = max_low_pfn;
#endif
}
return (void __user __force *)(-1UL);
/*
- * FPU emulator may have it's own trampoline active just
+ * FPU emulator may have its own trampoline active just
* above the user stack, 16-bytes before the next lowest
* 16 byte boundary. Try to avoid trashing it.
*/
panic("Caught unexpected vectored interrupt.");
}
-static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
+void *set_vi_handler(int n, vi_handler_t addr)
{
+ extern const u8 except_vec_vi[];
+ extern const u8 except_vec_vi_ori[], except_vec_vi_end[];
+ extern const u8 rollback_except_vec_vi[];
unsigned long handler;
unsigned long old_handler = vi_handlers[n];
int srssets = current_cpu_data.srsets;
u16 *h;
unsigned char *b;
+ const u8 *vec_start;
+ int ori_offset;
+ int handler_len;
BUG_ON(!cpu_has_veic && !cpu_has_vint);
if (addr == NULL) {
handler = (unsigned long) do_default_vi;
- srs = 0;
} else
handler = (unsigned long) addr;
vi_handlers[n] = handler;
b = (unsigned char *)(ebase + 0x200 + n*VECTORSPACING);
- if (srs >= srssets)
- panic("Shadow register set %d not supported", srs);
-
if (cpu_has_veic) {
if (board_bind_eic_interrupt)
- board_bind_eic_interrupt(n, srs);
+ board_bind_eic_interrupt(n, 0);
} else if (cpu_has_vint) {
/* SRSMap is only defined if shadow sets are implemented */
if (srssets > 1)
- change_c0_srsmap(0xf << n*4, srs << n*4);
+ change_c0_srsmap(0xf << n*4, 0 << n*4);
}
- if (srs == 0) {
- /*
- * If no shadow set is selected then use the default handler
- * that does normal register saving and standard interrupt exit
- */
- extern const u8 except_vec_vi[], except_vec_vi_lui[];
- extern const u8 except_vec_vi_ori[], except_vec_vi_end[];
- extern const u8 rollback_except_vec_vi[];
- const u8 *vec_start = using_rollback_handler() ?
- rollback_except_vec_vi : except_vec_vi;
+ vec_start = using_rollback_handler() ? rollback_except_vec_vi :
+ except_vec_vi;
#if defined(CONFIG_CPU_MICROMIPS) || defined(CONFIG_CPU_BIG_ENDIAN)
- const int lui_offset = except_vec_vi_lui - vec_start + 2;
- const int ori_offset = except_vec_vi_ori - vec_start + 2;
+ ori_offset = except_vec_vi_ori - vec_start + 2;
#else
- const int lui_offset = except_vec_vi_lui - vec_start;
- const int ori_offset = except_vec_vi_ori - vec_start;
+ ori_offset = except_vec_vi_ori - vec_start;
#endif
- const int handler_len = except_vec_vi_end - vec_start;
-
- if (handler_len > VECTORSPACING) {
- /*
- * Sigh... panicing won't help as the console
- * is probably not configured :(
- */
- panic("VECTORSPACING too small");
- }
+ handler_len = except_vec_vi_end - vec_start;
- set_handler(((unsigned long)b - ebase), vec_start,
-#ifdef CONFIG_CPU_MICROMIPS
- (handler_len - 1));
-#else
- handler_len);
-#endif
- h = (u16 *)(b + lui_offset);
- *h = (handler >> 16) & 0xffff;
- h = (u16 *)(b + ori_offset);
- *h = (handler & 0xffff);
- local_flush_icache_range((unsigned long)b,
- (unsigned long)(b+handler_len));
- }
- else {
+ if (handler_len > VECTORSPACING) {
/*
- * In other cases jump directly to the interrupt handler. It
- * is the handler's responsibility to save registers if required
- * (eg hi/lo) and return from the exception using "eret".
+ * Sigh... panicing won't help as the console
+ * is probably not configured :(
*/
- u32 insn;
+ panic("VECTORSPACING too small");
+ }
- h = (u16 *)b;
- /* j handler */
+ set_handler(((unsigned long)b - ebase), vec_start,
#ifdef CONFIG_CPU_MICROMIPS
- insn = 0xd4000000 | (((u32)handler & 0x07ffffff) >> 1);
+ (handler_len - 1));
#else
- insn = 0x08000000 | (((u32)handler & 0x0fffffff) >> 2);
+ handler_len);
#endif
- h[0] = (insn >> 16) & 0xffff;
- h[1] = insn & 0xffff;
- h[2] = 0;
- h[3] = 0;
- local_flush_icache_range((unsigned long)b,
- (unsigned long)(b+8));
- }
+ /* insert offset into vi_handlers[] */
+ h = (u16 *)(b + ori_offset);
+ *h = n * sizeof(handler);
+ local_flush_icache_range((unsigned long)b,
+ (unsigned long)(b+handler_len));
return (void *)old_handler;
}
-void *set_vi_handler(int n, vi_handler_t addr)
-{
- return set_vi_srs_handler(n, addr, 0);
-}
-
/*
* Timer interrupt
*/
set_except_vector(i, handle_reserved);
/*
- * Copy the EJTAG debug exception vector handler code to it's final
+ * Copy the EJTAG debug exception vector handler code to its final
* destination.
*/
if (cpu_has_ejtag && board_ejtag_handler_setup)
* Copyright (C) 2004, 2005 MIPS Technologies, Inc. All rights reserved.
* Copyright (C) 2013 Imagination Technologies Ltd.
*
- * VPE spport module for loading a MIPS SP program into VPE1. The SP
+ * VPE support module for loading a MIPS SP program into VPE1. The SP
* environment is rather simple since there are no TLBs. It needs
- * to be relocatable (or partiall linked). Initialize your stack in
+ * to be relocatable (or partially linked). Initialize your stack in
* the startup-code. The loader looks for the symbol __start and sets
* up the execution to resume from there. To load and run, simply do
* a cat SP 'binary' to the /dev/vpe1 device.
* to be used for a period of time, but the exact ktime corresponding to the
* final Count that must be restored is not known.
*
- * It is gauranteed that a timer interrupt immediately after restore will be
+ * It is guaranteed that a timer interrupt immediately after restore will be
* handled, but not if CP0_Compare is exactly at @count. That case should
* already be handled when the hardware timer state is saved.
*
{
struct cpuinfo_mips *c = ¤t_cpu_data;
- /* Only 2F revision and it's successors support CPUFreq */
+ /* Only 2F revision and its successors support CPUFreq */
if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_LOONGSON2F)
return platform_device_register(&loongson2_cpufreq_device);
}
/*
- * Setup the PC, SP, and GP of a secondary processor and start it runing!
+ * Setup the PC, SP, and GP of a secondary processor and start it running!
*/
static int loongson3_boot_secondary(int cpu, struct task_struct *idle)
{
/*
* c0_status.cu=0 specifies that updates by the sc instruction use
- * the coherency mode specified by the TLB; 1 means cachable
+ * the coherency mode specified by the TLB; 1 means cacheable
* coherent update on write will be used. Not all processors have
* this bit and; some wire it to zero, others like Toshiba had the
* silly idea of putting something else there ...
* This is a very bad place to be. Our cache error
* detection has triggered. If we have write-back data
* in the cache, we may not be able to recover. As a
- * first-order desperate measure, turn off KSEG0 cacheing.
+ * first-order desperate measure, turn off KSEG0 caching.
*/
mfc0 k0,CP0_CONFIG
li k1,~CONF_CM_CMASK
" %ldk highmem ignored\n",
(highend_pfn - max_low_pfn) << (PAGE_SHIFT - 10));
max_zone_pfns[ZONE_HIGHMEM] = max_low_pfn;
+
+ max_mapnr = max_low_pfn;
+ } else if (highend_pfn) {
+ max_mapnr = highend_pfn;
+ } else {
+ max_mapnr = max_low_pfn;
}
+#else
+ max_mapnr = max_low_pfn;
#endif
+ high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
free_area_init(max_zone_pfns);
}
*/
BUILD_BUG_ON(IS_ENABLED(CONFIG_32BIT) && (PFN_PTE_SHIFT > PAGE_SHIFT));
-#ifdef CONFIG_HIGHMEM
- max_mapnr = highend_pfn ? highend_pfn : max_low_pfn;
-#else
- max_mapnr = max_low_pfn;
-#endif
- high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
-
maar_init();
memblock_free_all();
setup_zero_pages(); /* Setup zeroed pages. */
flags == _CACHE_UNCACHED)
return (void __iomem *) CKSEG1ADDR(phys_addr);
+ /* Early remaps should use the unmapped regions til' VM is available */
+ if (WARN_ON_ONCE(!slab_is_available()))
+ return NULL;
+
/*
* Don't allow anybody to remap RAM that may be allocated by the page
* allocator, since that could lead to races & data clobbering.
int idx, pid;
/*
- * Handle debugger faulting in for debugee.
+ * Handle debugger faulting in for debuggee.
*/
if (current->active_mm != vma->vm_mm)
return;
int idx, pid;
/*
- * Handle debugger faulting in for debugee.
+ * Handle debugger faulting in for debuggee.
*/
if (current->active_mm != vma->vm_mm)
return;
if (check_for_high_segbits) {
/*
- * The kernel currently implicitely assumes that the
+ * The kernel currently implicitly assumes that the
* MIPS SEGBITS parameter for the processor is
* (PGDIR_SHIFT+PGDIR_BITS) or less, and will never
* allocate virtual addresses outside the maximum
/*
* Check if PTE is present, if not then jump to LABEL. PTR points to
* the page table where this PTE is located, PTE will be re-loaded
- * with it's original value.
+ * with its original value.
*/
static void
build_pte_present(u32 **p, struct uasm_reloc **r,
/*
* Mapping of 64-bit eBPF registers to 32-bit native MIPS registers.
*
- * 1) Native register pairs are ordered according to CPU endiannes, following
+ * 1) Native register pairs are ordered according to CPU endianness, following
* the MIPS convention for passing 64-bit arguments and return values.
* 2) The eBPF return value, arguments and callee-saved registers are mapped
* to their native MIPS equivalents.
*/
#ifdef CONFIG_CS5536
/* cs5536_pci_conf_read4/write4() will call _rdmsr/_wrmsr() to
- * access the regsters PCI_MSR_ADDR, PCI_MSR_DATA_LO,
+ * access the registers PCI_MSR_ADDR, PCI_MSR_DATA_LO,
* PCI_MSR_DATA_HI, which is bigger than PCI_MSR_CTRL, so, it
* will not go this branch, but the others. so, no calling dead
* loop here.
/* we can't ioremap the entire pci config space because it's too large,
* nor can we dynamically ioremap it because some drivers use the
- * PCI config routines from within atomic contex and that becomes a
+ * PCI config routines from within atomic context and that becomes a
* problem in get_vm_area(). Instead we use one wired TLB entry to
* handle all config accesses for all busses.
*/
* the CFG_SEL bit in the PCI_MISC_CONFIG register.
*
* Devices on the bus can perform DMA requests via chip BAR1. PCI host
- * controller BARs are programmend as if an external device is programmed.
+ * controller BARs are programmed as if an external device is programmed.
* Which means that during configuration, IDSEL pin of the chip should be
* asserted.
*
temp_buffer &= ~0xf0000;
/* enable internal arbiter */
temp_buffer |= (1 << INTERNAL_ARB_ENABLE_BIT);
- /* enable internal PCI master reqest */
+ /* enable internal PCI master request */
temp_buffer &= (~(3 << PCI_MASTER0_REQ_MASK_2BITS));
/* enable EBU request */
ctl_status.s.timer = 1;
cvmx_write_csr(CVMX_NPI_CTL_STATUS, ctl_status.u64);
- /* Deassert PCI reset and advertize PCX Host Mode Device Capability
+ /* Deassert PCI reset and advertise PCX Host Mode Device Capability
(64b) */
cvmx_write_csr(CVMX_CIU_SOFT_PRST, 0x4);
cvmx_read_csr(CVMX_CIU_SOFT_PRST);
*
* The function is complicated by the ultimate brokenness of the IOC3 chip
* which is used in SGI systems. The IOC3 can only handle 32-bit PCI
- * accesses and does only decode parts of it's address space.
+ * accesses and does only decode parts of its address space.
*/
static int pci_conf0_read_config(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 *value)
in_fif_p_count = dbg_data.s.data & 0xff;
} while (in_fif_p_count != ((old_in_fif_p_count+1) & 0xff));
- /* Update in_fif_p_count for it's offset with respect to out_p_count */
+ /* Update in_fif_p_count for its offset with respect to out_p_count */
in_fif_p_count = (in_fif_p_count + in_p_offset) & 0xff;
/* Read the OUT_P_COUNT from the debug select */
* mips_cm_probe() wipes out bootloader
* config for CM regions and we have to configure them
* again. This SoC cannot talk to pamlbus devices
- * witout proper iocu region set up.
+ * without proper iocu region set up.
*
* FIXME: it would be better to do this with values
* from DT, but we need this very early because
/**
* hub_pio_map - establish a HUB PIO mapping
*
- * @hub: hub to perform PIO mapping on
+ * @nasid: nasid to perform PIO mapping on
* @widget: widget ID to perform PIO mapping for
* @xtalk_addr: xtalk_address that needs to be mapped
* @size: size of the PIO mapping
unsigned char bist;
int ret;
- /* Do build-in self test */
+ /* Do built-in self test */
ret = pci_read_config_byte(dev, PCI_BIST, &bist);
if ((ret != PCIBIOS_SUCCESSFUL) || !(bist & PCI_BIST_CAPABLE))
return;
git.samba.org / sfrench / cifs-2.6.git / commitdiff