possible to determine what the correct size should be.
This option provides an override for these situations.
+ ca_keys= [KEYS] This parameter identifies a specific key(s) on
+ the system trusted keyring to be used for certificate
+ trust validation.
+ format: { id:<keyid> | builtin }
+
+ cca= [MIPS] Override the kernel pages' cache coherency
+ algorithm. Accepted values range from 0 to 7
+ inclusive. See arch/mips/include/asm/pgtable-bits.h
+ for platform specific values (SB1, Loongson3 and
+ others).
+
ccw_timeout_log [S390]
See Documentation/s390/CommonIO for details.
that can be changed at run time by the
set_graph_function file in the debugfs tracing directory.
+ ftrace_graph_notrace=[function-list]
+ [FTRACE] Do not trace from the functions specified in
+ function-list. This list is a comma separated list of
+ functions that can be changed at run time by the
+ set_graph_notrace file in the debugfs tracing directory.
+
gamecon.map[2|3]=
[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
support via parallel port (up to 5 devices per port)
Formats: { "ima" | "ima-ng" }
Default: "ima-ng"
+ ima.ahash_minsize= [IMA] Minimum file size for asynchronous hash usage
+ Format: <min_file_size>
+ Set the minimal file size for using asynchronous hash.
+ If left unspecified, ahash usage is disabled.
+
+ ahash performance varies for different data sizes on
+ different crypto accelerators. This option can be used
+ to achieve the best performance for a particular HW.
+
+ ima.ahash_bufsize= [IMA] Asynchronous hash buffer size
+ Format: <bufsize>
+ Set hashing buffer size. Default: 4k.
+
+ ahash performance varies for different chunk sizes on
+ different crypto accelerators. This option can be used
+ to achieve best performance for particular HW.
+
init= [KNL]
Format: <full_path>
Run specified binary instead of /sbin/init as init
ip= [IP_PNP]
See Documentation/filesystems/nfs/nfsroot.txt.
- ip2= [HW] Set IO/IRQ pairs for up to 4 IntelliPort boards
- See comment before ip2_setup() in
- drivers/char/ip2/ip2base.c.
-
irqfixup [HW]
When an interrupt is not handled search all handlers
for it. Intended to get systems with badly broken
7 (KERN_DEBUG) debug-level messages
log_buf_len=n[KMG] Sets the size of the printk ring buffer,
- in bytes. n must be a power of two. The default
- size is set in the kernel config file.
+ in bytes. n must be a power of two and greater
+ than the minimal size. The minimal size is defined
+ by LOG_BUF_SHIFT kernel config parameter. There is
+ also CONFIG_LOG_CPU_MAX_BUF_SHIFT config parameter
+ that allows to increase the default size depending on
+ the number of CPUs. See init/Kconfig for more details.
logo.nologo [FB] Disables display of the built-in Linux logo.
This may be used to provide more screen space for
leaf rcu_node structure. Useful for very large
systems.
+ rcutree.jiffies_till_sched_qs= [KNL]
+ Set required age in jiffies for a
+ given grace period before RCU starts
+ soliciting quiescent-state help from
+ rcu_note_context_switch().
+
rcutree.jiffies_till_first_fqs= [KNL]
Set delay from grace-period initialization to
first attempt to force quiescent states.
quiescent states. Units are jiffies, minimum
value is one, and maximum value is HZ.
+ rcutree.rcu_nocb_leader_stride= [KNL]
+ Set the number of NOCB kthread groups, which
+ defaults to the square root of the number of
+ CPUs. Larger numbers reduces the wakeup overhead
+ on the per-CPU grace-period kthreads, but increases
+ that same overhead on each group's leader.
+
rcutree.qhimark= [KNL]
Set threshold of queued RCU callbacks beyond which
batch limiting is disabled.
S [KNL] Run init in single mode
+ s390_iommu= [HW,S390]
+ Set s390 IOTLB flushing mode
+ strict
+ With strict flushing every unmap operation will result in
+ an IOTLB flush. Default is lazy flushing before reuse,
+ which is faster.
+
sa1100ir [NET]
See drivers/net/irda/sa1100_ir.c.
the allocated input device; If set to 0, video driver
will only send out the event without touching backlight
brightness level.
- default: 0
+ default: 1
virtio_mmio.device=
[VMMIO] Memory mapped virtio (platform) device.
select HAVE_BPF_JIT if !CPU_MICROMIPS
select ARCH_HAVE_CUSTOM_GPIO_H
select HAVE_FUNCTION_TRACER
- select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_C_RECORDMCOUNT
select SYS_SUPPORTS_APM_EMULATION
select ARCH_REQUIRE_GPIOLIB
select SYS_SUPPORTS_ZBOOT
+ select COMMON_CLK
config AR7
bool "Texas Instruments AR7"
select SYS_SUPPORTS_MIPS16
select SYS_HAS_EARLY_PRINTK
select USE_GENERIC_EARLY_PRINTK_8250
+ select GPIOLIB
+ select LEDS_GPIO_REGISTER
help
Support for BCM47XX based boards
select BOOT_RAW
select CEVT_R4K
select CSRC_R4K
+ select SYNC_R4K
select DMA_NONCOHERENT
select IRQ_CPU
select SYS_SUPPORTS_32BIT_KERNEL
support is unavailable.
config MIPS_CPS_PM
+ select MIPS_CPC
bool
config MIPS_GIC_IPI
microMIPS ISA
config CPU_HAS_MSA
- bool "Support for the MIPS SIMD Architecture"
+ bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
depends on CPU_SUPPORTS_MSA
- default y
+ depends on 64BIT || MIPS_O32_FP64_SUPPORT
help
MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
and a set of SIMD instructions to operate on them. When this option
CONFIG_MACH_LOONGSON=y
CONFIG_SWIOTLB=y
- CONFIG_LEMOTE_MACH3A=y
+ CONFIG_LOONGSON_MACH3X=y
CONFIG_CPU_LOONGSON3=y
CONFIG_64BIT=y
CONFIG_PAGE_SIZE_16KB=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_RAID_ATTRS=m
-CONFIG_SCSI_TGT=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
unsigned long seg;
} mm_segment_t;
- #define ARCH_MIN_TASKALIGN 8
+ #ifdef CONFIG_CPU_HAS_MSA
+ # define ARCH_MIN_TASKALIGN 16
+ # define FPU_ALIGN __aligned(16)
+ #else
+ # define ARCH_MIN_TASKALIGN 8
+ # define FPU_ALIGN
+ #endif
struct mips_abi;
unsigned long cp0_status;
/* Saved fpu/fpu emulator stuff. */
- struct mips_fpu_struct fpu;
+ struct mips_fpu_struct fpu FPU_ALIGN;
#ifdef CONFIG_MIPS_MT_FPAFF
/* Emulated instruction count */
unsigned long emulated_fp;
#define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status)
#define cpu_relax() barrier()
+#define cpu_relax_lowlatency() cpu_relax()
/*
* Return_address is a replacement for __builtin_return_address(count)
((unsigned int)(JAL | (((addr) >> 2) & ADDR_MASK)))
static unsigned int insn_jal_ftrace_caller __read_mostly;
- static unsigned int insn_lui_v1_hi16_mcount __read_mostly;
+ static unsigned int insn_la_mcount[2] __read_mostly;
static unsigned int insn_j_ftrace_graph_caller __maybe_unused __read_mostly;
static inline void ftrace_dyn_arch_init_insns(void)
u32 *buf;
unsigned int v1;
- /* lui v1, hi16_mcount */
+ /* la v1, _mcount */
v1 = 3;
- buf = (u32 *)&insn_lui_v1_hi16_mcount;
- UASM_i_LA_mostly(&buf, v1, MCOUNT_ADDR);
+ buf = (u32 *)&insn_la_mcount[0];
+ UASM_i_LA(&buf, v1, MCOUNT_ADDR);
/* jal (ftrace_caller + 8), jump over the first two instruction */
buf = (u32 *)&insn_jal_ftrace_caller;
unsigned int new_code2)
{
int faulted;
+ mm_segment_t old_fs;
safe_store_code(new_code1, ip, faulted);
if (unlikely(faulted))
return -EFAULT;
- safe_store_code(new_code2, ip + 4, faulted);
+
+ ip += 4;
+ safe_store_code(new_code2, ip, faulted);
if (unlikely(faulted))
return -EFAULT;
+
+ ip -= 4;
+ old_fs = get_fs();
+ set_fs(get_ds());
flush_icache_range(ip, ip + 8);
+ set_fs(old_fs);
+
+ return 0;
+ }
+
+ static int ftrace_modify_code_2r(unsigned long ip, unsigned int new_code1,
+ unsigned int new_code2)
+ {
+ int faulted;
+ mm_segment_t old_fs;
+
+ ip += 4;
+ safe_store_code(new_code2, ip, faulted);
+ if (unlikely(faulted))
+ return -EFAULT;
+
+ ip -= 4;
+ safe_store_code(new_code1, ip, faulted);
+ if (unlikely(faulted))
+ return -EFAULT;
+
+ old_fs = get_fs();
+ set_fs(get_ds());
+ flush_icache_range(ip, ip + 8);
+ set_fs(old_fs);
+
return 0;
}
#endif
*
* move at, ra
* jal _mcount --> nop
+ * sub sp, sp, 8 --> nop (CONFIG_32BIT)
*
* 2. For modules:
*
* 2.1 For KBUILD_MCOUNT_RA_ADDRESS and CONFIG_32BIT
*
* lui v1, hi_16bit_of_mcount --> b 1f (0x10000005)
- * addiu v1, v1, low_16bit_of_mcount
+ * addiu v1, v1, low_16bit_of_mcount --> nop (CONFIG_32BIT)
* move at, ra
* move $12, ra_address
* jalr v1
* 2.2 For the Other situations
*
* lui v1, hi_16bit_of_mcount --> b 1f (0x10000004)
- * addiu v1, v1, low_16bit_of_mcount
+ * addiu v1, v1, low_16bit_of_mcount --> nop (CONFIG_32BIT)
* move at, ra
* jalr v1
* nop | move $12, ra_address | sub sp, sp, 8
unsigned int new;
unsigned long ip = rec->ip;
- new = in_kernel_space(ip) ? insn_jal_ftrace_caller :
- insn_lui_v1_hi16_mcount;
+ new = in_kernel_space(ip) ? insn_jal_ftrace_caller : insn_la_mcount[0];
+ #ifdef CONFIG_64BIT
return ftrace_modify_code(ip, new);
+ #else
+ return ftrace_modify_code_2r(ip, new, in_kernel_space(ip) ?
+ INSN_NOP : insn_la_mcount[1]);
+ #endif
}
#define FTRACE_CALL_IP ((unsigned long)(&ftrace_call))
&return_to_handler;
int faulted, insns;
+ if (unlikely(ftrace_graph_is_dead()))
+ return;
+
if (unlikely(atomic_read(¤t->tracing_graph_pause)))
return;
#endif
/* When tracing is activated, it calls ftrace_caller+8 (aka here) */
- lw t1, function_trace_stop
- bnez t1, ftrace_stub
- nop
-
MCOUNT_SAVE_REGS
#ifdef KBUILD_MCOUNT_RA_ADDRESS
PTR_S MCOUNT_RA_ADDRESS_REG, PT_R12(sp)
#endif
PTR_SUBU a0, ra, 8 /* arg1: self address */
+ PTR_LA t1, _stext
+ sltu t2, a0, t1 /* t2 = (a0 < _stext) */
+ PTR_LA t1, _etext
+ sltu t3, t1, a0 /* t3 = (a0 > _etext) */
+ or t1, t2, t3
+ beqz t1, ftrace_call
+ nop
+ #if defined(KBUILD_MCOUNT_RA_ADDRESS) && defined(CONFIG_32BIT)
+ PTR_SUBU a0, a0, 16 /* arg1: adjust to module's recorded callsite */
+ #else
+ PTR_SUBU a0, a0, 12
+ #endif
+
.globl ftrace_call
ftrace_call:
nop /* a placeholder for the call to a real tracing function */
#else /* ! CONFIG_DYNAMIC_FTRACE */
NESTED(_mcount, PT_SIZE, ra)
- lw t1, function_trace_stop
- bnez t1, ftrace_stub
- nop
PTR_LA t1, ftrace_stub
PTR_L t2, ftrace_trace_function /* Prepare t2 for (1) */
bne t1, t2, static_trace
/*
* Ok, copy the args from the luser stack to the kernel stack.
- * t3 is the precomputed number of instruction bytes needed to
- * load or store arguments 6-8.
*/
.set push
PTR sys_tgkill
PTR sys_utimes
PTR sys_mbind
- PTR sys_ni_syscall /* sys_get_mempolicy */
- PTR sys_ni_syscall /* 4270 sys_set_mempolicy */
+ PTR sys_get_mempolicy
+ PTR sys_set_mempolicy /* 4270 */
PTR sys_mq_open
PTR sys_mq_unlink
PTR sys_mq_timedsend
PTR sys_sched_setattr
PTR sys_sched_getattr /* 4350 */
PTR sys_renameat2
+ PTR sys_seccomp
PTR sys_tgkill /* 5225 */
PTR sys_utimes
PTR sys_mbind
- PTR sys_ni_syscall /* sys_get_mempolicy */
- PTR sys_ni_syscall /* sys_set_mempolicy */
+ PTR sys_get_mempolicy
+ PTR sys_set_mempolicy
PTR sys_mq_open /* 5230 */
PTR sys_mq_unlink
PTR sys_mq_timedsend
PTR sys_sched_setattr
PTR sys_sched_getattr /* 5310 */
PTR sys_renameat2
+ PTR sys_seccomp
.size sys_call_table,.-sys_call_table
PTR sys_getpeername
PTR sys_socketpair
PTR compat_sys_setsockopt
- PTR sys_getsockopt
+ PTR compat_sys_getsockopt
PTR __sys_clone /* 6055 */
PTR __sys_fork
PTR compat_sys_execve
PTR compat_sys_clock_nanosleep
PTR sys_tgkill
PTR compat_sys_utimes /* 6230 */
- PTR sys_ni_syscall /* sys_mbind */
- PTR sys_ni_syscall /* sys_get_mempolicy */
- PTR sys_ni_syscall /* sys_set_mempolicy */
+ PTR compat_sys_mbind
+ PTR compat_sys_get_mempolicy
+ PTR compat_sys_set_mempolicy
PTR compat_sys_mq_open
PTR sys_mq_unlink /* 6235 */
PTR compat_sys_mq_timedsend
PTR sys_inotify_init
PTR sys_inotify_add_watch
PTR sys_inotify_rm_watch
- PTR sys_migrate_pages /* 6250 */
+ PTR compat_sys_migrate_pages /* 6250 */
PTR sys_openat
PTR sys_mkdirat
PTR sys_mknodat
PTR sys_sync_file_range
PTR sys_tee
PTR compat_sys_vmsplice /* 6270 */
- PTR sys_move_pages
+ PTR compat_sys_move_pages
PTR compat_sys_set_robust_list
PTR compat_sys_get_robust_list
PTR compat_sys_kexec_load
PTR sys_sched_setattr
PTR sys_sched_getattr
PTR sys_renameat2 /* 6315 */
+ PTR sys_seccomp
.size sysn32_call_table,.-sysn32_call_table
PTR compat_sys_clock_nanosleep /* 4265 */
PTR sys_tgkill
PTR compat_sys_utimes
- PTR sys_ni_syscall /* sys_mbind */
- PTR sys_ni_syscall /* sys_get_mempolicy */
- PTR sys_ni_syscall /* 4270 sys_set_mempolicy */
+ PTR compat_sys_mbind
+ PTR compat_sys_get_mempolicy
+ PTR compat_sys_set_mempolicy /* 4270 */
PTR compat_sys_mq_open
PTR sys_mq_unlink
PTR compat_sys_mq_timedsend
PTR sys_inotify_init
PTR sys_inotify_add_watch /* 4285 */
PTR sys_inotify_rm_watch
- PTR sys_migrate_pages
+ PTR compat_sys_migrate_pages
PTR compat_sys_openat
PTR sys_mkdirat
PTR sys_mknodat /* 4290 */
PTR sys_sched_setattr
PTR sys_sched_getattr /* 4350 */
PTR sys_renameat2
+ PTR sys_seccomp
.size sys32_call_table,.-sys32_call_table
PSC_SPIMSK_MM | PSC_SPIMSK_RR | PSC_SPIMSK_RO
| PSC_SPIMSK_RU | PSC_SPIMSK_TR | PSC_SPIMSK_TO
| PSC_SPIMSK_TU | PSC_SPIMSK_SD | PSC_SPIMSK_MD;
- au_sync();
+ wmb(); /* drain writebuffer */
hw->regs->psc_spievent =
PSC_SPIEVNT_MM | PSC_SPIEVNT_RR | PSC_SPIEVNT_RO
| PSC_SPIEVNT_RU | PSC_SPIEVNT_TR | PSC_SPIEVNT_TO
| PSC_SPIEVNT_TU | PSC_SPIEVNT_SD | PSC_SPIEVNT_MD;
- au_sync();
+ wmb(); /* drain writebuffer */
}
static void au1550_spi_reset_fifos(struct au1550_spi *hw)
u32 pcr;
hw->regs->psc_spipcr = PSC_SPIPCR_RC | PSC_SPIPCR_TC;
- au_sync();
+ wmb(); /* drain writebuffer */
do {
pcr = hw->regs->psc_spipcr;
- au_sync();
+ wmb(); /* drain writebuffer */
} while (pcr != 0);
}
au1550_spi_bits_handlers_set(hw, spi->bits_per_word);
cfg = hw->regs->psc_spicfg;
- au_sync();
+ wmb(); /* drain writebuffer */
hw->regs->psc_spicfg = cfg & ~PSC_SPICFG_DE_ENABLE;
- au_sync();
+ wmb(); /* drain writebuffer */
if (spi->mode & SPI_CPOL)
cfg |= PSC_SPICFG_BI;
cfg |= au1550_spi_baudcfg(hw, spi->max_speed_hz);
hw->regs->psc_spicfg = cfg | PSC_SPICFG_DE_ENABLE;
- au_sync();
+ wmb(); /* drain writebuffer */
do {
stat = hw->regs->psc_spistat;
- au_sync();
+ wmb(); /* drain writebuffer */
} while ((stat & PSC_SPISTAT_DR) == 0);
if (hw->pdata->activate_cs)
au1550_spi_bits_handlers_set(hw, spi->bits_per_word);
cfg = hw->regs->psc_spicfg;
- au_sync();
+ wmb(); /* drain writebuffer */
hw->regs->psc_spicfg = cfg & ~PSC_SPICFG_DE_ENABLE;
- au_sync();
+ wmb(); /* drain writebuffer */
if (hw->usedma && bpw <= 8)
cfg &= ~PSC_SPICFG_DD_DISABLE;
cfg |= au1550_spi_baudcfg(hw, hz);
hw->regs->psc_spicfg = cfg;
- au_sync();
+ wmb(); /* drain writebuffer */
if (cfg & PSC_SPICFG_DE_ENABLE) {
do {
stat = hw->regs->psc_spistat;
- au_sync();
+ wmb(); /* drain writebuffer */
} while ((stat & PSC_SPISTAT_DR) == 0);
}
/* by default enable nearly all events interrupt */
hw->regs->psc_spimsk = PSC_SPIMSK_SD;
- au_sync();
+ wmb(); /* drain writebuffer */
/* start the transfer */
hw->regs->psc_spipcr = PSC_SPIPCR_MS;
- au_sync();
+ wmb(); /* drain writebuffer */
wait_for_completion(&hw->master_done);
stat = hw->regs->psc_spistat;
evnt = hw->regs->psc_spievent;
- au_sync();
+ wmb(); /* drain writebuffer */
if ((stat & PSC_SPISTAT_DI) == 0) {
dev_err(hw->dev, "Unexpected IRQ!\n");
return IRQ_NONE;
static void au1550_spi_rx_word_##size(struct au1550_spi *hw) \
{ \
u32 fifoword = hw->regs->psc_spitxrx & (u32)(mask); \
- au_sync(); \
+ wmb(); /* drain writebuffer */ \
if (hw->rx) { \
*(u##size *)hw->rx = (u##size)fifoword; \
hw->rx += (size) / 8; \
if (hw->tx_count >= hw->len) \
fifoword |= PSC_SPITXRX_LC; \
hw->regs->psc_spitxrx = fifoword; \
- au_sync(); \
+ wmb(); /* drain writebuffer */ \
}
AU1550_SPI_RX_WORD(8,0xff)
}
stat = hw->regs->psc_spistat;
- au_sync();
+ wmb(); /* drain writebuffer */
if (stat & PSC_SPISTAT_TF)
break;
}
/* enable event interrupts */
hw->regs->psc_spimsk = mask;
- au_sync();
+ wmb(); /* drain writebuffer */
/* start the transfer */
hw->regs->psc_spipcr = PSC_SPIPCR_MS;
- au_sync();
+ wmb(); /* drain writebuffer */
wait_for_completion(&hw->master_done);
stat = hw->regs->psc_spistat;
evnt = hw->regs->psc_spievent;
- au_sync();
+ wmb(); /* drain writebuffer */
if ((stat & PSC_SPISTAT_DI) == 0) {
dev_err(hw->dev, "Unexpected IRQ!\n");
return IRQ_NONE;
do {
busy = 0;
stat = hw->regs->psc_spistat;
- au_sync();
+ wmb(); /* drain writebuffer */
/*
* Take care to not let the Rx FIFO overflow.
} while (busy);
hw->regs->psc_spievent = PSC_SPIEVNT_RR | PSC_SPIEVNT_TR;
- au_sync();
+ wmb(); /* drain writebuffer */
/*
* Restart the SPI transmission in case of a transmit underflow.
*/
if (evnt & PSC_SPIEVNT_TU) {
hw->regs->psc_spievent = PSC_SPIEVNT_TU | PSC_SPIEVNT_MD;
- au_sync();
+ wmb(); /* drain writebuffer */
hw->regs->psc_spipcr = PSC_SPIPCR_MS;
- au_sync();
+ wmb(); /* drain writebuffer */
}
if (hw->rx_count >= hw->len) {
/* set up the PSC for SPI mode */
hw->regs->psc_ctrl = PSC_CTRL_DISABLE;
- au_sync();
+ wmb(); /* drain writebuffer */
hw->regs->psc_sel = PSC_SEL_PS_SPIMODE;
- au_sync();
+ wmb(); /* drain writebuffer */
hw->regs->psc_spicfg = 0;
- au_sync();
+ wmb(); /* drain writebuffer */
hw->regs->psc_ctrl = PSC_CTRL_ENABLE;
- au_sync();
+ wmb(); /* drain writebuffer */
do {
stat = hw->regs->psc_spistat;
- au_sync();
+ wmb(); /* drain writebuffer */
} while ((stat & PSC_SPISTAT_SR) == 0);
#endif
hw->regs->psc_spicfg = cfg;
- au_sync();
+ wmb(); /* drain writebuffer */
au1550_spi_mask_ack_all(hw);
hw->regs->psc_spicfg |= PSC_SPICFG_DE_ENABLE;
- au_sync();
+ wmb(); /* drain writebuffer */
do {
stat = hw->regs->psc_spistat;
- au_sync();
+ wmb(); /* drain writebuffer */
} while ((stat & PSC_SPISTAT_DR) == 0);
au1550_spi_reset_fifos(hw);
iounmap((void __iomem *)hw->regs);
err_ioremap:
- release_resource(hw->ioarea);
- kfree(hw->ioarea);
+ release_mem_region(r->start, sizeof(psc_spi_t));
err_no_iores:
err_no_pdata:
spi_bitbang_stop(&hw->bitbang);
free_irq(hw->irq, hw);
iounmap((void __iomem *)hw->regs);
- release_resource(hw->ioarea);
- kfree(hw->ioarea);
+ release_mem_region(r->start, sizeof(psc_spi_t));
if (hw->usedma) {
au1550_spi_dma_rxtmp_free(hw);
projects / cascardo / linux.git / commitdiff