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Merge branch 'sa11x0-mcp-fixes' into fixes

This commit is contained in:
Russell King 2012-01-26 21:06:54 +00:00
parent 4e7682d077 0af5e4c36e
commit 9a95b9e741
37 changed files with 596 additions and 509 deletions
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4
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 2
PATCHLEVEL = 3
SUBLEVEL = 0
EXTRAVERSION =
EXTRAVERSION = -rc1
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*

12
arch/arm/mach-sa1100/assabet.c
View File

@ -202,7 +202,6 @@ static struct irda_platform_data assabet_irda_data = {
static struct mcp_plat_data assabet_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
.codec = "ucb1x00",
};
static void __init assabet_init(void)
@ -253,17 +252,6 @@ static void __init assabet_init(void)
sa11x0_register_mtd(&assabet_flash_data, assabet_flash_resources,
ARRAY_SIZE(assabet_flash_resources));
sa11x0_register_irda(&assabet_irda_data);
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
sa11x0_register_mcp(&assabet_mcp_data);
}

11
arch/arm/mach-sa1100/cerf.c
View File

@ -124,23 +124,12 @@ static void __init cerf_map_io(void)
static struct mcp_plat_data cerf_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
.codec = "ucb1x00",
};
static void __init cerf_init(void)
{
platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
sa11x0_register_mcp(&cerf_mcp_data);
}

18
arch/arm/mach-sa1100/collie.c
View File

@ -27,7 +27,6 @@
#include <linux/timer.h>
#include <linux/gpio.h>
#include <linux/pda_power.h>
#include <linux/mfd/ucb1x00.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@ -86,15 +85,10 @@ static struct scoop_pcmcia_config collie_pcmcia_config = {
.num_devs = 1,
};
static struct ucb1x00_plat_data collie_ucb1x00_data = {
.gpio_base = COLLIE_TC35143_GPIO_BASE,
};
static struct mcp_plat_data collie_mcp_data = {
.mccr0 = MCCR0_ADM | MCCR0_ExtClk,
.sclk_rate = 9216000,
.codec = "ucb1x00",
.codec_pdata = &collie_ucb1x00_data,
.gpio_base = COLLIE_TC35143_GPIO_BASE,
};
/*
@ -356,16 +350,6 @@ static void __init collie_init(void)
sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
ARRAY_SIZE(collie_flash_resources));
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
sa11x0_register_mcp(&collie_mcp_data);
sharpsl_save_param();

7
arch/arm/mach-sa1100/generic.c
View File

@ -217,15 +217,10 @@ static struct platform_device sa11x0uart3_device = {
static struct resource sa11x0mcp_resources[] = {
[0] = {
.start = __PREG(Ser4MCCR0),
.end = __PREG(Ser4MCCR0) + 0x1C - 1,
.end = __PREG(Ser4MCCR0) + 0xffff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = __PREG(Ser4MCCR1),
.end = __PREG(Ser4MCCR1) + 0x4 - 1,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_Ser4MCP,
.end = IRQ_Ser4MCP,
.flags = IORESOURCE_IRQ,

2
arch/arm/mach-sa1100/include/mach/mcp.h
View File

@ -17,8 +17,6 @@ struct mcp_plat_data {
u32 mccr1;
unsigned int sclk_rate;
int gpio_base;
const char *codec;
void *codec_pdata;
};
#endif

10
arch/arm/mach-sa1100/lart.c
View File

@ -24,20 +24,10 @@
static struct mcp_plat_data lart_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
.codec = "ucb1x00",
};
static void __init lart_init(void)
{
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
sa11x0_register_mcp(&lart_mcp_data);
}

11
arch/arm/mach-sa1100/shannon.c
View File

@ -55,22 +55,11 @@ static struct resource shannon_flash_resource = {
static struct mcp_plat_data shannon_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
.codec = "ucb1x00",
};
static void __init shannon_init(void)
{
sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
sa11x0_register_mcp(&shannon_mcp_data);
}

18
arch/arm/mach-sa1100/simpad.c
View File

@ -14,7 +14,6 @@
#include <linux/mtd/partitions.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/mfd/ucb1x00.h>
#include <asm/irq.h>
#include <mach/hardware.h>
@ -188,15 +187,10 @@ static struct resource simpad_flash_resources [] = {
}
};
static struct ucb1x00_plat_data simpad_ucb1x00_data = {
.gpio_base = SIMPAD_UCB1X00_GPIO_BASE,
};
static struct mcp_plat_data simpad_mcp_data = {
.mccr0 = MCCR0_ADM,
.sclk_rate = 11981000,
.codec = "ucb1300",
.codec_pdata = &simpad_ucb1x00_data,
.gpio_base = SIMPAD_UCB1X00_GPIO_BASE,
};
@ -384,16 +378,6 @@ static int __init simpad_init(void)
sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
ARRAY_SIZE(simpad_flash_resources));
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
sa11x0_register_mcp(&simpad_mcp_data);
ret = platform_add_devices(devices, ARRAY_SIZE(devices));

1
arch/x86/.gitignore vendored
View File

@ -1,3 +1,4 @@
boot/compressed/vmlinux
tools/test_get_len
tools/insn_sanity

20
arch/x86/Kconfig
View File

@ -125,16 +125,6 @@ config HAVE_LATENCYTOP_SUPPORT
config MMU
def_bool y
config ZONE_DMA
bool "DMA memory allocation support" if EXPERT
default y
help
DMA memory allocation support allows devices with less than 32-bit
addressing to allocate within the first 16MB of address space.
Disable if no such devices will be used.
If unsure, say Y.
config SBUS
bool
@ -255,6 +245,16 @@ source "kernel/Kconfig.freezer"
menu "Processor type and features"
config ZONE_DMA
bool "DMA memory allocation support" if EXPERT
default y
help
DMA memory allocation support allows devices with less than 32-bit
addressing to allocate within the first 16MB of address space.
Disable if no such devices will be used.
If unsure, say Y.
source "kernel/time/Kconfig"
config SMP

1
arch/x86/include/asm/unistd.h
View File

@ -7,6 +7,7 @@
# include <asm/unistd_32.h>
# define __ARCH_WANT_IPC_PARSE_VERSION
# define __ARCH_WANT_STAT64
# define __ARCH_WANT_SYS_IPC
# define __ARCH_WANT_SYS_OLD_MMAP
# define __ARCH_WANT_SYS_OLD_SELECT

103
arch/x86/include/asm/uv/uv_bau.h
View File

@ -65,7 +65,7 @@
* UV2: Bit 19 selects between
* (0): 10 microsecond timebase and
* (1): 80 microseconds
* we're using 655us, similar to UV1: 65 units of 10us
* we're using 560us, similar to UV1: 65 units of 10us
*/
#define UV1_INTD_SOFT_ACK_TIMEOUT_PERIOD (9UL)
#define UV2_INTD_SOFT_ACK_TIMEOUT_PERIOD (15UL)
@ -167,6 +167,7 @@
#define FLUSH_RETRY_TIMEOUT 2
#define FLUSH_GIVEUP 3
#define FLUSH_COMPLETE 4
#define FLUSH_RETRY_BUSYBUG 5
/*
* tuning the action when the numalink network is extremely delayed
@ -235,10 +236,10 @@ struct bau_msg_payload {
/*
* Message header: 16 bytes (128 bits) (bytes 0x30-0x3f of descriptor)
* UV1 Message header: 16 bytes (128 bits) (bytes 0x30-0x3f of descriptor)
* see table 4.2.3.0.1 in broacast_assist spec.
*/
struct bau_msg_header {
struct uv1_bau_msg_header {
unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */
/* bits 5:0 */
unsigned int base_dest_nasid:15; /* nasid of the first bit */
@ -317,6 +318,70 @@ struct bau_msg_header {
/* bits 127:107 */
};
/*
* UV2 Message header: 16 bytes (128 bits) (bytes 0x30-0x3f of descriptor)
* see figure 9-2 of harp_sys.pdf
*/
struct uv2_bau_msg_header {
unsigned int base_dest_nasid:15; /* nasid of the first bit */
/* bits 14:0 */ /* in uvhub map */
unsigned int dest_subnodeid:5; /* must be 0x10, for the LB */
/* bits 19:15 */
unsigned int rsvd_1:1; /* must be zero */
/* bit 20 */
/* Address bits 59:21 */
/* bits 25:2 of address (44:21) are payload */
/* these next 24 bits become bytes 12-14 of msg */
/* bits 28:21 land in byte 12 */
unsigned int replied_to:1; /* sent as 0 by the source to
byte 12 */
/* bit 21 */
unsigned int msg_type:3; /* software type of the
message */
/* bits 24:22 */
unsigned int canceled:1; /* message canceled, resource
is to be freed*/
/* bit 25 */
unsigned int payload_1:3; /* not currently used */
/* bits 28:26 */
/* bits 36:29 land in byte 13 */
unsigned int payload_2a:3; /* not currently used */
unsigned int payload_2b:5; /* not currently used */
/* bits 36:29 */
/* bits 44:37 land in byte 14 */
unsigned int payload_3:8; /* not currently used */
/* bits 44:37 */
unsigned int rsvd_2:7; /* reserved */
/* bits 51:45 */
unsigned int swack_flag:1; /* software acknowledge flag */
/* bit 52 */
unsigned int rsvd_3a:3; /* must be zero */
unsigned int rsvd_3b:8; /* must be zero */
unsigned int rsvd_3c:8; /* must be zero */
unsigned int rsvd_3d:3; /* must be zero */
/* bits 74:53 */
unsigned int fairness:3; /* usually zero */
/* bits 77:75 */
unsigned int sequence:16; /* message sequence number */
/* bits 93:78 Suppl_A */
unsigned int chaining:1; /* next descriptor is part of
this activation*/
/* bit 94 */
unsigned int multilevel:1; /* multi-level multicast
format */
/* bit 95 */
unsigned int rsvd_4:24; /* ordered / source node /
source subnode / aging
must be zero */
/* bits 119:96 */
unsigned int command:8; /* message type */
/* bits 127:120 */
};
/*
* The activation descriptor:
* The format of the message to send, plus all accompanying control
@ -327,10 +392,14 @@ struct bau_desc {
/*
* message template, consisting of header and payload:
*/
struct bau_msg_header header;
union bau_msg_header {
struct uv1_bau_msg_header uv1_hdr;
struct uv2_bau_msg_header uv2_hdr;
} header;
struct bau_msg_payload payload;
};
/*
/* UV1:
* -payload-- ---------header------
* bytes 0-11 bits 41-56 bits 58-81
* A B (2) C (3)
@ -340,6 +409,16 @@ struct bau_desc {
* bytes 0-11 bytes 12-14 bytes 16-17 (byte 15 filled in by hw as vector)
* ------------payload queue-----------
*/
/* UV2:
* -payload-- ---------header------
* bytes 0-11 bits 70-78 bits 21-44
* A B (2) C (3)
*
* A/B/C are moved to:
* A C B
* bytes 0-11 bytes 12-14 bytes 16-17 (byte 15 filled in by hw as vector)
* ------------payload queue-----------
*/
/*
* The payload queue on the destination side is an array of these.
@ -385,7 +464,6 @@ struct bau_pq_entry {
struct msg_desc {
struct bau_pq_entry *msg;
int msg_slot;
int swack_slot;
struct bau_pq_entry *queue_first;
struct bau_pq_entry *queue_last;
};
@ -405,6 +483,7 @@ struct ptc_stats {
requests */
unsigned long s_stimeout; /* source side timeouts */
unsigned long s_dtimeout; /* destination side timeouts */
unsigned long s_strongnacks; /* number of strong nack's */
unsigned long s_time; /* time spent in sending side */
unsigned long s_retriesok; /* successful retries */
unsigned long s_ntargcpu; /* total number of cpu's
@ -439,6 +518,9 @@ struct ptc_stats {
unsigned long s_retry_messages; /* retry broadcasts */
unsigned long s_bau_reenabled; /* for bau enable/disable */
unsigned long s_bau_disabled; /* for bau enable/disable */
unsigned long s_uv2_wars; /* uv2 workaround, perm. busy */
unsigned long s_uv2_wars_hw; /* uv2 workaround, hiwater */
unsigned long s_uv2_war_waits; /* uv2 workaround, long waits */
/* destination statistics */
unsigned long d_alltlb; /* times all tlb's on this
cpu were flushed */
@ -511,9 +593,12 @@ struct bau_control {
short osnode;
short uvhub_cpu;
short uvhub;
short uvhub_version;
short cpus_in_socket;
short cpus_in_uvhub;
short partition_base_pnode;
short using_desc; /* an index, like uvhub_cpu */
unsigned int inuse_map;
unsigned short message_number;
unsigned short uvhub_quiesce;
short socket_acknowledge_count[DEST_Q_SIZE];
@ -531,6 +616,7 @@ struct bau_control {
int cong_response_us;
int cong_reps;
int cong_period;
unsigned long clocks_per_100_usec;
cycles_t period_time;
long period_requests;
struct hub_and_pnode *thp;
@ -591,6 +677,11 @@ static inline void write_mmr_sw_ack(unsigned long mr)
uv_write_local_mmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS, mr);
}
static inline void write_gmmr_sw_ack(int pnode, unsigned long mr)
{
write_gmmr(pnode, UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS, mr);
}
static inline unsigned long read_mmr_sw_ack(void)
{
return read_lmmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE);

14
arch/x86/kernel/tsc.c
View File

@ -290,14 +290,15 @@ static inline int pit_verify_msb(unsigned char val)
static inline int pit_expect_msb(unsigned char val, u64 *tscp, unsigned long *deltap)
{
int count;
u64 tsc = 0;
u64 tsc = 0, prev_tsc = 0;
for (count = 0; count < 50000; count++) {
if (!pit_verify_msb(val))
break;
prev_tsc = tsc;
tsc = get_cycles();
}
*deltap = get_cycles() - tsc;
*deltap = get_cycles() - prev_tsc;
*tscp = tsc;
/*
@ -311,9 +312,9 @@ static inline int pit_expect_msb(unsigned char val, u64 *tscp, unsigned long *de
* How many MSB values do we want to see? We aim for
* a maximum error rate of 500ppm (in practice the
* real error is much smaller), but refuse to spend
* more than 25ms on it.
* more than 50ms on it.
*/
#define MAX_QUICK_PIT_MS 25
#define MAX_QUICK_PIT_MS 50
#define MAX_QUICK_PIT_ITERATIONS (MAX_QUICK_PIT_MS * PIT_TICK_RATE / 1000 / 256)
static unsigned long quick_pit_calibrate(void)
@ -383,15 +384,12 @@ success:
*
* As a result, we can depend on there not being
* any odd delays anywhere, and the TSC reads are
* reliable (within the error). We also adjust the
* delta to the middle of the error bars, just
* because it looks nicer.
* reliable (within the error).
*
* kHz = ticks / time-in-seconds / 1000;
* kHz = (t2 - t1) / (I * 256 / PIT_TICK_RATE) / 1000
* kHz = ((t2 - t1) * PIT_TICK_RATE) / (I * 256 * 1000)
*/
delta += (long)(d2 - d1)/2;
delta *= PIT_TICK_RATE;
do_div(delta, i*256*1000);
printk("Fast TSC calibration using PIT\n");

8
arch/x86/lib/x86-opcode-map.txt
View File

@ -219,7 +219,9 @@ ab: STOS/W/D/Q Yv,rAX
ac: LODS/B AL,Xb
ad: LODS/W/D/Q rAX,Xv
ae: SCAS/B AL,Yb
af: SCAS/W/D/Q rAX,Xv
# Note: The May 2011 Intel manual shows Xv for the second parameter of the
# next instruction but Yv is correct
af: SCAS/W/D/Q rAX,Yv
# 0xb0 - 0xbf
b0: MOV AL/R8L,Ib
b1: MOV CL/R9L,Ib
@ -729,8 +731,8 @@ de: VAESDEC Vdq,Hdq,Wdq (66),(v1)
df: VAESDECLAST Vdq,Hdq,Wdq (66),(v1)
f0: MOVBE Gy,My | MOVBE Gw,Mw (66) | CRC32 Gd,Eb (F2)
f1: MOVBE My,Gy | MOVBE Mw,Gw (66) | CRC32 Gd,Ey (F2)
f3: ANDN Gy,By,Ey (v)
f4: Grp17 (1A)
f2: ANDN Gy,By,Ey (v)
f3: Grp17 (1A)
f5: BZHI Gy,Ey,By (v) | PEXT Gy,By,Ey (F3),(v) | PDEP Gy,By,Ey (F2),(v)
f6: MULX By,Gy,rDX,Ey (F2),(v)
f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v)

374
arch/x86/platform/uv/tlb_uv.c
View File

@ -157,13 +157,14 @@ static int __init uvhub_to_first_apicid(int uvhub)
* clear of the Timeout bit (as well) will free the resource. No reply will
* be sent (the hardware will only do one reply per message).
*/
static void reply_to_message(struct msg_desc *mdp, struct bau_control *bcp)
static void reply_to_message(struct msg_desc *mdp, struct bau_control *bcp,
int do_acknowledge)
{
unsigned long dw;
struct bau_pq_entry *msg;
msg = mdp->msg;
if (!msg->canceled) {
if (!msg->canceled && do_acknowledge) {
dw = (msg->swack_vec << UV_SW_ACK_NPENDING) | msg->swack_vec;
write_mmr_sw_ack(dw);
}
@ -212,8 +213,8 @@ static void bau_process_retry_msg(struct msg_desc *mdp,
if (mmr & (msg_res << UV_SW_ACK_NPENDING)) {
unsigned long mr;
/*
* is the resource timed out?
* make everyone ignore the cancelled message.
* Is the resource timed out?
* Make everyone ignore the cancelled message.
*/
msg2->canceled = 1;
stat->d_canceled++;
@ -231,8 +232,8 @@ static void bau_process_retry_msg(struct msg_desc *mdp,
* Do all the things a cpu should do for a TLB shootdown message.
* Other cpu's may come here at the same time for this message.
*/
static void bau_process_message(struct msg_desc *mdp,
struct bau_control *bcp)
static void bau_process_message(struct msg_desc *mdp, struct bau_control *bcp,
int do_acknowledge)
{
short socket_ack_count = 0;
short *sp;
@ -284,8 +285,9 @@ static void bau_process_message(struct msg_desc *mdp,
if (msg_ack_count == bcp->cpus_in_uvhub) {
/*
* All cpus in uvhub saw it; reply
* (unless we are in the UV2 workaround)
*/
reply_to_message(mdp, bcp);
reply_to_message(mdp, bcp, do_acknowledge);
}
}
@ -491,27 +493,138 @@ static int uv1_wait_completion(struct bau_desc *bau_desc,
/*
* UV2 has an extra bit of status in the ACTIVATION_STATUS_2 register.
*/
static unsigned long uv2_read_status(unsigned long offset, int rshft, int cpu)
static unsigned long uv2_read_status(unsigned long offset, int rshft, int desc)
{
unsigned long descriptor_status;
unsigned long descriptor_status2;
descriptor_status = ((read_lmmr(offset) >> rshft) & UV_ACT_STATUS_MASK);
descriptor_status2 = (read_mmr_uv2_status() >> cpu) & 0x1UL;
descriptor_status2 = (read_mmr_uv2_status() >> desc) & 0x1UL;
descriptor_status = (descriptor_status << 1) | descriptor_status2;
return descriptor_status;
}
/*
* Return whether the status of the descriptor that is normally used for this
* cpu (the one indexed by its hub-relative cpu number) is busy.
* The status of the original 32 descriptors is always reflected in the 64
* bits of UVH_LB_BAU_SB_ACTIVATION_STATUS_0.
* The bit provided by the activation_status_2 register is irrelevant to
* the status if it is only being tested for busy or not busy.
*/
int normal_busy(struct bau_control *bcp)
{
int cpu = bcp->uvhub_cpu;
int mmr_offset;
int right_shift;
mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0;
right_shift = cpu * UV_ACT_STATUS_SIZE;
return (((((read_lmmr(mmr_offset) >> right_shift) &
UV_ACT_STATUS_MASK)) << 1) == UV2H_DESC_BUSY);
}
/*
* Entered when a bau descriptor has gone into a permanent busy wait because
* of a hardware bug.
* Workaround the bug.
*/
int handle_uv2_busy(struct bau_control *bcp)
{
int busy_one = bcp->using_desc;
int normal = bcp->uvhub_cpu;
int selected = -1;
int i;
unsigned long descriptor_status;
unsigned long status;
int mmr_offset;
struct bau_desc *bau_desc_old;
struct bau_desc *bau_desc_new;
struct bau_control *hmaster = bcp->uvhub_master;
struct ptc_stats *stat = bcp->statp;
cycles_t ttm;
stat->s_uv2_wars++;
spin_lock(&hmaster->uvhub_lock);
/* try for the original first */
if (busy_one != normal) {
if (!normal_busy(bcp))
selected = normal;
}
if (selected < 0) {
/* can't use the normal, select an alternate */
mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1;
descriptor_status = read_lmmr(mmr_offset);
/* scan available descriptors 32-63 */
for (i = 0; i < UV_CPUS_PER_AS; i++) {
if ((hmaster->inuse_map & (1 << i)) == 0) {
status = ((descriptor_status >>
(i * UV_ACT_STATUS_SIZE)) &
UV_ACT_STATUS_MASK) << 1;
if (status != UV2H_DESC_BUSY) {
selected = i + UV_CPUS_PER_AS;
break;
}
}
}
}
if (busy_one != normal)
/* mark the busy alternate as not in-use */
hmaster->inuse_map &= ~(1 << (busy_one - UV_CPUS_PER_AS));
if (selected >= 0) {
/* switch to the selected descriptor */
if (selected != normal) {
/* set the selected alternate as in-use */
hmaster->inuse_map |=
(1 << (selected - UV_CPUS_PER_AS));
if (selected > stat->s_uv2_wars_hw)
stat->s_uv2_wars_hw = selected;
}
bau_desc_old = bcp->descriptor_base;
bau_desc_old += (ITEMS_PER_DESC * busy_one);
bcp->using_desc = selected;
bau_desc_new = bcp->descriptor_base;
bau_desc_new += (ITEMS_PER_DESC * selected);
*bau_desc_new = *bau_desc_old;
} else {
/*
* All are busy. Wait for the normal one for this cpu to
* free up.
*/
stat->s_uv2_war_waits++;
spin_unlock(&hmaster->uvhub_lock);
ttm = get_cycles();
do {
cpu_relax();
} while (normal_busy(bcp));
spin_lock(&hmaster->uvhub_lock);
/* switch to the original descriptor */
bcp->using_desc = normal;
bau_desc_old = bcp->descriptor_base;
bau_desc_old += (ITEMS_PER_DESC * bcp->using_desc);
bcp->using_desc = (ITEMS_PER_DESC * normal);
bau_desc_new = bcp->descriptor_base;
bau_desc_new += (ITEMS_PER_DESC * normal);
*bau_desc_new = *bau_desc_old; /* copy the entire descriptor */
}
spin_unlock(&hmaster->uvhub_lock);
return FLUSH_RETRY_BUSYBUG;
}
static int uv2_wait_completion(struct bau_desc *bau_desc,
unsigned long mmr_offset, int right_shift,
struct bau_control *bcp, long try)
{
unsigned long descriptor_stat;
cycles_t ttm;
int cpu = bcp->uvhub_cpu;
int desc = bcp->using_desc;
long busy_reps = 0;
struct ptc_stats *stat = bcp->statp;
descriptor_stat = uv2_read_status(mmr_offset, right_shift, cpu);
descriptor_stat = uv2_read_status(mmr_offset, right_shift, desc);
/* spin on the status MMR, waiting for it to go idle */
while (descriptor_stat != UV2H_DESC_IDLE) {
@ -522,32 +635,35 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
* our message and its state will stay IDLE.
*/
if ((descriptor_stat == UV2H_DESC_SOURCE_TIMEOUT) ||
(descriptor_stat == UV2H_DESC_DEST_STRONG_NACK) ||
(descriptor_stat == UV2H_DESC_DEST_PUT_ERR)) {
stat->s_stimeout++;
return FLUSH_GIVEUP;
} else if (descriptor_stat == UV2H_DESC_DEST_STRONG_NACK) {
stat->s_strongnacks++;
bcp->conseccompletes = 0;
return FLUSH_GIVEUP;
} else if (descriptor_stat == UV2H_DESC_DEST_TIMEOUT) {
stat->s_dtimeout++;
ttm = get_cycles();
/*
* Our retries may be blocked by all destination
* swack resources being consumed, and a timeout
* pending. In that case hardware returns the
* ERROR that looks like a destination timeout.
*/
if (cycles_2_us(ttm - bcp->send_message) < timeout_us) {
bcp->conseccompletes = 0;
return FLUSH_RETRY_PLUGGED;
}
bcp->conseccompletes = 0;
return FLUSH_RETRY_TIMEOUT;
} else {
busy_reps++;
if (busy_reps > 1000000) {
/* not to hammer on the clock */
busy_reps = 0;
ttm = get_cycles();
if ((ttm - bcp->send_message) >
(bcp->clocks_per_100_usec)) {
return handle_uv2_busy(bcp);
}
}
/*
* descriptor_stat is still BUSY
*/
cpu_relax();
}
descriptor_stat = uv2_read_status(mmr_offset, right_shift, cpu);
descriptor_stat = uv2_read_status(mmr_offset, right_shift,
desc);
}
bcp->conseccompletes++;
return FLUSH_COMPLETE;
@ -563,17 +679,17 @@ static int wait_completion(struct bau_desc *bau_desc,
{
int right_shift;
unsigned long mmr_offset;
int cpu = bcp->uvhub_cpu;
int desc = bcp->using_desc;
if (cpu < UV_CPUS_PER_AS) {
if (desc < UV_CPUS_PER_AS) {
mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0;
right_shift = cpu * UV_ACT_STATUS_SIZE;
right_shift = desc * UV_ACT_STATUS_SIZE;
} else {
mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1;
right_shift = ((cpu - UV_CPUS_PER_AS) * UV_ACT_STATUS_SIZE);
right_shift = ((desc - UV_CPUS_PER_AS) * UV_ACT_STATUS_SIZE);
}
if (is_uv1_hub())
if (bcp->uvhub_version == 1)
return uv1_wait_completion(bau_desc, mmr_offset, right_shift,
bcp, try);
else
@ -752,19 +868,22 @@ static void handle_cmplt(int completion_status, struct bau_desc *bau_desc,
* Returns 1 if it gives up entirely and the original cpu mask is to be
* returned to the kernel.
*/
int uv_flush_send_and_wait(struct bau_desc *bau_desc,
struct cpumask *flush_mask, struct bau_control *bcp)
int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp)
{
int seq_number = 0;
int completion_stat = 0;
int uv1 = 0;
long try = 0;
unsigned long index;
cycles_t time1;
cycles_t time2;
struct ptc_stats *stat = bcp->statp;
struct bau_control *hmaster = bcp->uvhub_master;
struct uv1_bau_msg_header *uv1_hdr = NULL;
struct uv2_bau_msg_header *uv2_hdr = NULL;
struct bau_desc *bau_desc;
if (is_uv1_hub())
if (bcp->uvhub_version == 1)
uv1_throttle(hmaster, stat);
while (hmaster->uvhub_quiesce)
@ -772,22 +891,39 @@ int uv_flush_send_and_wait(struct bau_desc *bau_desc,
time1 = get_cycles();
do {
if (try == 0) {
bau_desc->header.msg_type = MSG_REGULAR;
bau_desc = bcp->descriptor_base;
bau_desc += (ITEMS_PER_DESC * bcp->using_desc);
if (bcp->uvhub_version == 1) {
uv1 = 1;
uv1_hdr = &bau_desc->header.uv1_hdr;
} else
uv2_hdr = &bau_desc->header.uv2_hdr;
if ((try == 0) || (completion_stat == FLUSH_RETRY_BUSYBUG)) {
if (uv1)
uv1_hdr->msg_type = MSG_REGULAR;
else
uv2_hdr->msg_type = MSG_REGULAR;
seq_number = bcp->message_number++;
} else {
bau_desc->header.msg_type = MSG_RETRY;
if (uv1)
uv1_hdr->msg_type = MSG_RETRY;
else
uv2_hdr->msg_type = MSG_RETRY;
stat->s_retry_messages++;
}
bau_desc->header.sequence = seq_number;
index = (1UL << AS_PUSH_SHIFT) | bcp->uvhub_cpu;
if (uv1)
uv1_hdr->sequence = seq_number;
else
uv2_hdr->sequence = seq_number;
index = (1UL << AS_PUSH_SHIFT) | bcp->using_desc;
bcp->send_message = get_cycles();
write_mmr_activation(index);
try++;
completion_stat = wait_completion(bau_desc, bcp, try);
/* UV2: wait_completion() may change the bcp->using_desc */
handle_cmplt(completion_stat, bau_desc, bcp, hmaster, stat);
@ -798,6 +934,7 @@ int uv_flush_send_and_wait(struct bau_desc *bau_desc,
}
cpu_relax();
} while ((completion_stat == FLUSH_RETRY_PLUGGED) ||
(completion_stat == FLUSH_RETRY_BUSYBUG) ||
(completion_stat == FLUSH_RETRY_TIMEOUT));
time2 = get_cycles();
@ -812,6 +949,7 @@ int uv_flush_send_and_wait(struct bau_desc *bau_desc,
record_send_stats(time1, time2, bcp, stat, completion_stat, try);
if (completion_stat == FLUSH_GIVEUP)
/* FLUSH_GIVEUP will fall back to using IPI's for tlb flush */
return 1;
return 0;
}
@ -967,7 +1105,7 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
stat->s_ntargself++;
bau_desc = bcp->descriptor_base;
bau_desc += ITEMS_PER_DESC * bcp->uvhub_cpu;
bau_desc += (ITEMS_PER_DESC * bcp->using_desc);
bau_uvhubs_clear(&bau_desc->distribution, UV_DISTRIBUTION_SIZE);
if (set_distrib_bits(flush_mask, bcp, bau_desc, &locals, &remotes))
return NULL;
@ -980,12 +1118,85 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
* uv_flush_send_and_wait returns 0 if all cpu's were messaged,
* or 1 if it gave up and the original cpumask should be returned.
*/
if (!uv_flush_send_and_wait(bau_desc, flush_mask, bcp))
if (!uv_flush_send_and_wait(flush_mask, bcp))
return NULL;
else
return cpumask;
}
/*
* Search the message queue for any 'other' message with the same software
* acknowledge resource bit vector.
*/
struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
struct bau_control *bcp, unsigned char swack_vec)
{
struct bau_pq_entry *msg_next = msg + 1;
if (msg_next > bcp->queue_last)
msg_next = bcp->queue_first;
while ((msg_next->swack_vec != 0) && (msg_next != msg)) {
if (msg_next->swack_vec == swack_vec)
return msg_next;
msg_next++;
if (msg_next > bcp->queue_last)
msg_next = bcp->queue_first;
}
return NULL;
}
/*
* UV2 needs to work around a bug in which an arriving message has not
* set a bit in the UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE register.
* Such a message must be ignored.
*/
void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp)
{
unsigned long mmr_image;
unsigned char swack_vec;
struct bau_pq_entry *msg = mdp->msg;
struct bau_pq_entry *other_msg;
mmr_image = read_mmr_sw_ack();
swack_vec = msg->swack_vec;
if ((swack_vec & mmr_image) == 0) {
/*
* This message was assigned a swack resource, but no
* reserved acknowlegment is pending.
* The bug has prevented this message from setting the MMR.
* And no other message has used the same sw_ack resource.
* Do the requested shootdown but do not reply to the msg.
* (the 0 means make no acknowledge)
*/
bau_process_message(mdp, bcp, 0);
return;
}
/*
* Some message has set the MMR 'pending' bit; it might have been
* another message. Look for that message.
*/
other_msg = find_another_by_swack(msg, bcp, msg->swack_vec);
if (other_msg) {
/* There is another. Do not ack the current one. */
bau_process_message(mdp, bcp, 0);
/*
* Let the natural processing of that message acknowledge
* it. Don't get the processing of sw_ack's out of order.
*/
return;
}
/*
* There is no other message using this sw_ack, so it is safe to
* acknowledge it.
*/
bau_process_message(mdp, bcp, 1);
return;
}
/*
* The BAU message interrupt comes here. (registered by set_intr_gate)
* See entry_64.S
@ -1009,6 +1220,7 @@ void uv_bau_message_interrupt(struct pt_regs *regs)
struct ptc_stats *stat;
struct msg_desc msgdesc;
ack_APIC_irq();
time_start = get_cycles();
bcp = &per_cpu(bau_control, smp_processor_id());
@ -1022,9 +1234,11 @@ void uv_bau_message_interrupt(struct pt_regs *regs)
count++;
msgdesc.msg_slot = msg - msgdesc.queue_first;
msgdesc.swack_slot = ffs(msg->swack_vec) - 1;
msgdesc.msg = msg;
bau_process_message(&msgdesc, bcp);
if (bcp->uvhub_version == 2)
process_uv2_message(&msgdesc, bcp);
else
bau_process_message(&msgdesc, bcp, 1);
msg++;
if (msg > msgdesc.queue_last)
@ -1036,8 +1250,6 @@ void uv_bau_message_interrupt(struct pt_regs *regs)
stat->d_nomsg++;
else if (count > 1)
stat->d_multmsg++;
ack_APIC_irq();
}
/*
@ -1083,7 +1295,7 @@ static void __init enable_timeouts(void)
*/
mmr_image |= (1L << SOFTACK_MSHIFT);
if (is_uv2_hub()) {
mmr_image |= (1L << UV2_LEG_SHFT);
mmr_image &= ~(1L << UV2_LEG_SHFT);
mmr_image |= (1L << UV2_EXT_SHFT);
}
write_mmr_misc_control(pnode, mmr_image);
@ -1136,13 +1348,13 @@ static int ptc_seq_show(struct seq_file *file, void *data)
seq_printf(file,
"remotehub numuvhubs numuvhubs16 numuvhubs8 ");
seq_printf(file,
"numuvhubs4 numuvhubs2 numuvhubs1 dto retries rok ");
"numuvhubs4 numuvhubs2 numuvhubs1 dto snacks retries rok ");
seq_printf(file,
"resetp resett giveup sto bz throt swack recv rtime ");
seq_printf(file,
"all one mult none retry canc nocan reset rcan ");
seq_printf(file,
"disable enable\n");
"disable enable wars warshw warwaits\n");
}
if (cpu < num_possible_cpus() && cpu_online(cpu)) {
stat = &per_cpu(ptcstats, cpu);
@ -1154,10 +1366,10 @@ static int ptc_seq_show(struct seq_file *file, void *data)
stat->s_ntargremotes, stat->s_ntargcpu,
stat->s_ntarglocaluvhub, stat->s_ntargremoteuvhub,
stat->s_ntarguvhub, stat->s_ntarguvhub16);
seq_printf(file, "%ld %ld %ld %ld %ld ",
seq_printf(file, "%ld %ld %ld %ld %ld %ld ",
stat->s_ntarguvhub8, stat->s_ntarguvhub4,
stat->s_ntarguvhub2, stat->s_ntarguvhub1,
stat->s_dtimeout);
stat->s_dtimeout, stat->s_strongnacks);
seq_printf(file, "%ld %ld %ld %ld %ld %ld %ld %ld ",
stat->s_retry_messages, stat->s_retriesok,
stat->s_resets_plug, stat->s_resets_timeout,
@ -1173,8 +1385,10 @@ static int ptc_seq_show(struct seq_file *file, void *data)
stat->d_nomsg, stat->d_retries, stat->d_canceled,
stat->d_nocanceled, stat->d_resets,
stat->d_rcanceled);
seq_printf(file, "%ld %ld\n",
stat->s_bau_disabled, stat->s_bau_reenabled);
seq_printf(file, "%ld %ld %ld %ld %ld\n",
stat->s_bau_disabled, stat->s_bau_reenabled,
stat->s_uv2_wars, stat->s_uv2_wars_hw,
stat->s_uv2_war_waits);
}
return 0;
}
@ -1432,12 +1646,15 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
{
int i;
int cpu;
int uv1 = 0;
unsigned long gpa;
unsigned long m;
unsigned long n;
size_t dsize;
struct bau_desc *bau_desc;
struct bau_desc *bd2;
struct uv1_bau_msg_header *uv1_hdr;
struct uv2_bau_msg_header *uv2_hdr;
struct bau_control *bcp;
/*
@ -1451,6 +1668,8 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
gpa = uv_gpa(bau_desc);
n = uv_gpa_to_gnode(gpa);
m = uv_gpa_to_offset(gpa);
if (is_uv1_hub())
uv1 = 1;
/* the 14-bit pnode */
write_mmr_descriptor_base(pnode, (n << UV_DESC_PSHIFT | m));
@ -1461,21 +1680,33 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
*/
for (i = 0, bd2 = bau_desc; i < (ADP_SZ * ITEMS_PER_DESC); i++, bd2++) {
memset(bd2, 0, sizeof(struct bau_desc));
bd2->header.swack_flag = 1;
if (uv1) {
uv1_hdr = &bd2->header.uv1_hdr;
uv1_hdr->swack_flag = 1;
/*
* The base_dest_nasid set in the message header is the nasid
* of the first uvhub in the partition. The bit map will
* indicate destination pnode numbers relative to that base.
* They may not be consecutive if nasid striding is being used.
* The base_dest_nasid set in the message header
* is the nasid of the first uvhub in the partition.
* The bit map will indicate destination pnode numbers
* relative to that base. They may not be consecutive
* if nasid striding is being used.
*/
bd2->header.base_dest_nasid = UV_PNODE_TO_NASID(base_pnode);
bd2->header.dest_subnodeid = UV_LB_SUBNODEID;
bd2->header.command = UV_NET_ENDPOINT_INTD;
bd2->header.int_both = 1;
uv1_hdr->base_dest_nasid =
UV_PNODE_TO_NASID(base_pnode);
uv1_hdr->dest_subnodeid = UV_LB_SUBNODEID;
uv1_hdr->command = UV_NET_ENDPOINT_INTD;
uv1_hdr->int_both = 1;
/*
* all others need to be set to zero:
* fairness chaining multilevel count replied_to
*/
} else {
uv2_hdr = &bd2->header.uv2_hdr;
uv2_hdr->swack_flag = 1;
uv2_hdr->base_dest_nasid =
UV_PNODE_TO_NASID(base_pnode);
uv2_hdr->dest_subnodeid = UV_LB_SUBNODEID;
uv2_hdr->command = UV_NET_ENDPOINT_INTD;
}
}
for_each_present_cpu(cpu) {
if (pnode != uv_blade_to_pnode(uv_cpu_to_blade_id(cpu)))
@ -1531,6 +1762,7 @@ static void pq_init(int node, int pnode)
write_mmr_payload_first(pnode, pn_first);
write_mmr_payload_tail(pnode, first);
write_mmr_payload_last(pnode, last);
write_gmmr_sw_ack(pnode, 0xffffUL);
/* in effect, all msg_type's are set to MSG_NOOP */
memset(pqp, 0, sizeof(struct bau_pq_entry) * DEST_Q_SIZE);
@ -1584,14 +1816,14 @@ static int calculate_destination_timeout(void)
ts_ns = base * mult1 * mult2;
ret = ts_ns / 1000;
} else {
/* 4 bits 0/1 for 10/80us, 3 bits of multiplier */
mmr_image = uv_read_local_mmr(UVH_AGING_PRESCALE_SEL);
/* 4 bits 0/1 for 10/80us base, 3 bits of multiplier */
mmr_image = uv_read_local_mmr(UVH_LB_BAU_MISC_CONTROL);
mmr_image = (mmr_image & UV_SA_MASK) >> UV_SA_SHFT;
if (mmr_image & (1L << UV2_ACK_UNITS_SHFT))
mult1 = 80;
base = 80;
else
mult1 = 10;
base = mmr_image & UV2_ACK_MASK;
base = 10;
mult1 = mmr_image & UV2_ACK_MASK;
ret = mult1 * base;
}
return ret;
@ -1618,6 +1850,7 @@ static void __init init_per_cpu_tunables(void)
bcp->cong_response_us = congested_respns_us;
bcp->cong_reps = congested_reps;
bcp->cong_period = congested_period;
bcp->clocks_per_100_usec = usec_2_cycles(100);
}
}
@ -1728,8 +1961,17 @@ static int scan_sock(struct socket_desc *sdp, struct uvhub_desc *bdp,
bcp->cpus_in_socket = sdp->num_cpus;
bcp->socket_master = *smasterp;
bcp->uvhub = bdp->uvhub;
if (is_uv1_hub())
bcp->uvhub_version = 1;
else if (is_uv2_hub())
bcp->uvhub_version = 2;
else {
printk(KERN_EMERG "uvhub version not 1 or 2\n");
return 1;
}
bcp->uvhub_master = *hmasterp;
bcp->uvhub_cpu = uv_cpu_hub_info(cpu)->blade_processor_id;
bcp->using_desc = bcp->uvhub_cpu;
if (bcp->uvhub_cpu >= MAX_CPUS_PER_UVHUB) {
printk(KERN_EMERG "%d cpus per uvhub invalid\n",
bcp->uvhub_cpu);
@ -1845,6 +2087,8 @@ static int __init uv_bau_init(void)
uv_base_pnode = uv_blade_to_pnode(uvhub);
}
enable_timeouts();
if (init_per_cpu(nuvhubs, uv_base_pnode)) {
nobau = 1;
return 0;
@ -1855,7 +2099,6 @@ static int __init uv_bau_init(void)
if (uv_blade_nr_possible_cpus(uvhub))
init_uvhub(uvhub, vector, uv_base_pnode);
enable_timeouts();
alloc_intr_gate(vector, uv_bau_message_intr1);
for_each_possible_blade(uvhub) {
@ -1867,6 +2110,7 @@ static int __init uv_bau_init(void)
val = 1L << 63;
write_gmmr_activation(pnode, val);
mmr = 1; /* should be 1 to broadcast to both sockets */
if (!is_uv1_hub())
write_mmr_data_broadcast(pnode, mmr);
}
}

1
drivers/gpio/Kconfig
View File

@ -87,6 +87,7 @@ config GPIO_GENERIC_PLATFORM
config GPIO_IT8761E
tristate "IT8761E GPIO support"
depends on X86 # unconditional access to IO space.
help
Say yes here to support GPIO functionality of IT8761E super I/O chip.

8
drivers/gpio/gpio-ml-ioh.c
View File

@ -248,7 +248,7 @@ static void ioh_gpio_setup(struct ioh_gpio *chip, int num_port)
static int ioh_irq_type(struct irq_data *d, unsigned int type)
{
u32 im;
u32 *im_reg;
void __iomem *im_reg;
u32 ien;
u32 im_pos;
int ch;
@ -412,7 +412,7 @@ static int __devinit ioh_gpio_probe(struct pci_dev *pdev,
int i, j;
struct ioh_gpio *chip;
void __iomem *base;
void __iomem *chip_save;
void *chip_save;
int irq_base;
ret = pci_enable_device(pdev);
@ -428,7 +428,7 @@ static int __devinit ioh_gpio_probe(struct pci_dev *pdev,
}
base = pci_iomap(pdev, 1, 0);
if (base == 0) {
if (!base) {
dev_err(&pdev->dev, "%s : pci_iomap failed", __func__);
ret = -ENOMEM;
goto err_iomap;
@ -521,7 +521,7 @@ static void __devexit ioh_gpio_remove(struct pci_dev *pdev)
int err;
int i;
struct ioh_gpio *chip = pci_get_drvdata(pdev);
void __iomem *chip_save;
void *chip_save;
chip_save = chip;

4
drivers/gpio/gpio-pch.c
View File

@ -231,7 +231,7 @@ static void pch_gpio_setup(struct pch_gpio *chip)
static int pch_irq_type(struct irq_data *d, unsigned int type)
{
u32 im;
u32 *im_reg;
u32 __iomem *im_reg;
u32 ien;
u32 im_pos;
int ch;
@ -376,7 +376,7 @@ static int __devinit pch_gpio_probe(struct pci_dev *pdev,
}
chip->base = pci_iomap(pdev, 1, 0);
if (chip->base == 0) {
if (!chip->base) {
dev_err(&pdev->dev, "%s : pci_iomap FAILED", __func__);
ret = -ENOMEM;
goto err_iomap;

2
drivers/gpio/gpio-tps65910.c
View File

@ -52,7 +52,7 @@ static int tps65910_gpio_output(struct gpio_chip *gc, unsigned offset,
struct tps65910 *tps65910 = container_of(gc, struct tps65910, gpio);
/* Set the initial value */
tps65910_gpio_set(gc, 0, value);
tps65910_gpio_set(gc, offset, value);
return tps65910_set_bits(tps65910, TPS65910_GPIO0 + offset,
GPIO_CFG_MASK);

61
drivers/mfd/mcp-core.c
View File

@ -26,35 +26,9 @@
#define to_mcp(d) container_of(d, struct mcp, attached_device)
#define to_mcp_driver(d) container_of(d, struct mcp_driver, drv)
static const struct mcp_device_id *mcp_match_id(const struct mcp_device_id *id,
const char *codec)
{
while (id->name[0]) {
if (strcmp(codec, id->name) == 0)
return id;
id++;
}
return NULL;
}
const struct mcp_device_id *mcp_get_device_id(const struct mcp *mcp)
{
const struct mcp_driver *driver =
to_mcp_driver(mcp->attached_device.driver);
return mcp_match_id(driver->id_table, mcp->codec);
}
EXPORT_SYMBOL(mcp_get_device_id);
static int mcp_bus_match(struct device *dev, struct device_driver *drv)
{
const struct mcp *mcp = to_mcp(dev);
const struct mcp_driver *driver = to_mcp_driver(drv);
if (driver->id_table)
return !!mcp_match_id(driver->id_table, mcp->codec);
return 0;
return 1;
}
static int mcp_bus_probe(struct device *dev)
@ -100,18 +74,9 @@ static int mcp_bus_resume(struct device *dev)
return ret;
}
static int mcp_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct mcp *mcp = to_mcp(dev);
add_uevent_var(env, "MODALIAS=%s%s", MCP_MODULE_PREFIX, mcp->codec);
return 0;
}
static struct bus_type mcp_bus_type = {
.name = "mcp",
.match = mcp_bus_match,
.uevent = mcp_bus_uevent,
.probe = mcp_bus_probe,
.remove = mcp_bus_remove,
.suspend = mcp_bus_suspend,
@ -128,9 +93,11 @@ static struct bus_type mcp_bus_type = {
*/
void mcp_set_telecom_divisor(struct mcp *mcp, unsigned int div)
{
spin_lock_irq(&mcp->lock);
unsigned long flags;
spin_lock_irqsave(&mcp->lock, flags);
mcp->ops->set_telecom_divisor(mcp, div);
spin_unlock_irq(&mcp->lock);
spin_unlock_irqrestore(&mcp->lock, flags);
}
EXPORT_SYMBOL(mcp_set_telecom_divisor);
@ -143,9 +110,11 @@ EXPORT_SYMBOL(mcp_set_telecom_divisor);
*/
void mcp_set_audio_divisor(struct mcp *mcp, unsigned int div)
{
spin_lock_irq(&mcp->lock);
unsigned long flags;
spin_lock_irqsave(&mcp->lock, flags);
mcp->ops->set_audio_divisor(mcp, div);
spin_unlock_irq(&mcp->lock);
spin_unlock_irqrestore(&mcp->lock, flags);
}
EXPORT_SYMBOL(mcp_set_audio_divisor);
@ -198,10 +167,11 @@ EXPORT_SYMBOL(mcp_reg_read);
*/
void mcp_enable(struct mcp *mcp)
{
spin_lock_irq(&mcp->lock);
unsigned long flags;
spin_lock_irqsave(&mcp->lock, flags);
if (mcp->use_count++ == 0)
mcp->ops->enable(mcp);
spin_unlock_irq(&mcp->lock);
spin_unlock_irqrestore(&mcp->lock, flags);
}
EXPORT_SYMBOL(mcp_enable);
@ -247,14 +217,9 @@ struct mcp *mcp_host_alloc(struct device *parent, size_t size)
}
EXPORT_SYMBOL(mcp_host_alloc);
int mcp_host_register(struct mcp *mcp, void *pdata)
int mcp_host_register(struct mcp *mcp)
{
if (!mcp->codec)
return -EINVAL;
mcp->attached_device.platform_data = pdata;
dev_set_name(&mcp->attached_device, "mcp0");
request_module("%s%s", MCP_MODULE_PREFIX, mcp->codec);
return device_register(&mcp->attached_device);
}
EXPORT_SYMBOL(mcp_host_register);

165
drivers/mfd/mcp-sa11x0.c
View File

@ -19,7 +19,6 @@
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/mfd/mcp.h>
#include <linux/io.h>
#include <mach/dma.h>
#include <mach/hardware.h>
@ -27,19 +26,12 @@
#include <asm/system.h>
#include <mach/mcp.h>
/* Register offsets */
#define MCCR0 0x00
#define MCDR0 0x08
#define MCDR1 0x0C
#define MCDR2 0x10
#define MCSR 0x18
#define MCCR1 0x00
#include <mach/assabet.h>
struct mcp_sa11x0 {
u32 mccr0;
u32 mccr1;
unsigned char *mccr0_base;
unsigned char *mccr1_base;
};
#define priv(mcp) ((struct mcp_sa11x0 *)mcp_priv(mcp))
@ -47,25 +39,25 @@ struct mcp_sa11x0 {
static void
mcp_sa11x0_set_telecom_divisor(struct mcp *mcp, unsigned int divisor)
{
struct mcp_sa11x0 *priv = priv(mcp);
unsigned int mccr0;
divisor /= 32;
priv->mccr0 &= ~0x00007f00;
priv->mccr0 |= divisor << 8;
__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
mccr0 = Ser4MCCR0 & ~0x00007f00;
mccr0 |= divisor << 8;
Ser4MCCR0 = mccr0;
}
static void
mcp_sa11x0_set_audio_divisor(struct mcp *mcp, unsigned int divisor)
{
struct mcp_sa11x0 *priv = priv(mcp);
unsigned int mccr0;
divisor /= 32;
priv->mccr0 &= ~0x0000007f;
priv->mccr0 |= divisor;
__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
mccr0 = Ser4MCCR0 & ~0x0000007f;
mccr0 |= divisor;
Ser4MCCR0 = mccr0;
}
/*
@ -79,16 +71,12 @@ mcp_sa11x0_write(struct mcp *mcp, unsigned int reg, unsigned int val)
{
int ret = -ETIME;
int i;
u32 mcpreg;
struct mcp_sa11x0 *priv = priv(mcp);
mcpreg = reg << 17 | MCDR2_Wr | (val & 0xffff);
__raw_writel(mcpreg, priv->mccr0_base + MCDR2);
Ser4MCDR2 = reg << 17 | MCDR2_Wr | (val & 0xffff);
for (i = 0; i < 2; i++) {
udelay(mcp->rw_timeout);
mcpreg = __raw_readl(priv->mccr0_base + MCSR);
if (mcpreg & MCSR_CWC) {
if (Ser4MCSR & MCSR_CWC) {
ret = 0;
break;
}
@ -109,18 +97,13 @@ mcp_sa11x0_read(struct mcp *mcp, unsigned int reg)
{
int ret = -ETIME;
int i;
u32 mcpreg;
struct mcp_sa11x0 *priv = priv(mcp);
mcpreg = reg << 17 | MCDR2_Rd;
__raw_writel(mcpreg, priv->mccr0_base + MCDR2);
Ser4MCDR2 = reg << 17 | MCDR2_Rd;
for (i = 0; i < 2; i++) {
udelay(mcp->rw_timeout);
mcpreg = __raw_readl(priv->mccr0_base + MCSR);
if (mcpreg & MCSR_CRC) {
ret = __raw_readl(priv->mccr0_base + MCDR2)
& 0xffff;
if (Ser4MCSR & MCSR_CRC) {
ret = Ser4MCDR2 & 0xffff;
break;
}
}
@ -133,19 +116,13 @@ mcp_sa11x0_read(struct mcp *mcp, unsigned int reg)
static void mcp_sa11x0_enable(struct mcp *mcp)
{
struct mcp_sa11x0 *priv = priv(mcp);
__raw_writel(-1, priv->mccr0_base + MCSR);
priv->mccr0 |= MCCR0_MCE;
__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
Ser4MCSR = -1;
Ser4MCCR0 |= MCCR0_MCE;
}
static void mcp_sa11x0_disable(struct mcp *mcp)
{
struct mcp_sa11x0 *priv = priv(mcp);
priv->mccr0 &= ~MCCR0_MCE;
__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
Ser4MCCR0 &= ~MCCR0_MCE;
}
/*
@ -165,69 +142,50 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
struct mcp_plat_data *data = pdev->dev.platform_data;
struct mcp *mcp;
int ret;
struct mcp_sa11x0 *priv;
struct resource *res_mem0, *res_mem1;
u32 size0, size1;
if (!data)
return -ENODEV;
if (!data->codec)
return -ENODEV;
res_mem0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res_mem0)
return -ENODEV;
size0 = res_mem0->end - res_mem0->start + 1;
res_mem1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res_mem1)
return -ENODEV;
size1 = res_mem1->end - res_mem1->start + 1;
if (!request_mem_region(res_mem0->start, size0, "sa11x0-mcp"))
if (!request_mem_region(0x80060000, 0x60, "sa11x0-mcp"))
return -EBUSY;
if (!request_mem_region(res_mem1->start, size1, "sa11x0-mcp")) {
ret = -EBUSY;
goto release;
}
mcp = mcp_host_alloc(&pdev->dev, sizeof(struct mcp_sa11x0));
if (!mcp) {
ret = -ENOMEM;
goto release2;
goto release;
}
priv = priv(mcp);
mcp->owner = THIS_MODULE;
mcp->ops = &mcp_sa11x0;
mcp->sclk_rate = data->sclk_rate;
mcp->dma_audio_rd = DDAR_DevAdd(res_mem0->start + MCDR0)
+ DDAR_DevRd + DDAR_Brst4 + DDAR_8BitDev;
mcp->dma_audio_wr = DDAR_DevAdd(res_mem0->start + MCDR0)
+ DDAR_DevWr + DDAR_Brst4 + DDAR_8BitDev;
mcp->dma_telco_rd = DDAR_DevAdd(res_mem0->start + MCDR1)
+ DDAR_DevRd + DDAR_Brst4 + DDAR_8BitDev;
mcp->dma_telco_wr = DDAR_DevAdd(res_mem0->start + MCDR1)
+ DDAR_DevWr + DDAR_Brst4 + DDAR_8BitDev;
mcp->codec = data->codec;
mcp->dma_audio_rd = DMA_Ser4MCP0Rd;
mcp->dma_audio_wr = DMA_Ser4MCP0Wr;
mcp->dma_telco_rd = DMA_Ser4MCP1Rd;
mcp->dma_telco_wr = DMA_Ser4MCP1Wr;
mcp->gpio_base = data->gpio_base;
platform_set_drvdata(pdev, mcp);
if (machine_is_assabet()) {
ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
}
/*
* Setup the PPC unit correctly.
*/
PPDR &= ~PPC_RXD4;
PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
PSDR |= PPC_RXD4;
PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
/*
* Initialise device. Note that we initially
* set the sampling rate to minimum.
*/
priv->mccr0_base = ioremap(res_mem0->start, size0);
priv->mccr1_base = ioremap(res_mem1->start, size1);
__raw_writel(-1, priv->mccr0_base + MCSR);
priv->mccr1 = data->mccr1;
priv->mccr0 = data->mccr0 | 0x7f7f;
__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
__raw_writel(priv->mccr1, priv->mccr1_base + MCCR1);
Ser4MCSR = -1;
Ser4MCCR1 = data->mccr1;
Ser4MCCR0 = data->mccr0 | 0x7f7f;
/*
* Calculate the read/write timeout (us) from the bit clock
@ -237,53 +195,36 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
mcp->rw_timeout = (64 * 3 * 1000000 + mcp->sclk_rate - 1) /
mcp->sclk_rate;
ret = mcp_host_register(mcp, data->codec_pdata);
ret = mcp_host_register(mcp);
if (ret == 0)
goto out;
release2:
release_mem_region(res_mem1->start, size1);
release:
release_mem_region(res_mem0->start, size0);
release_mem_region(0x80060000, 0x60);
platform_set_drvdata(pdev, NULL);
out:
return ret;
}
static int mcp_sa11x0_remove(struct platform_device *pdev)
static int mcp_sa11x0_remove(struct platform_device *dev)
{
struct mcp *mcp = platform_get_drvdata(pdev);
struct mcp_sa11x0 *priv = priv(mcp);
struct resource *res_mem;
u32 size;
struct mcp *mcp = platform_get_drvdata(dev);
platform_set_drvdata(pdev, NULL);
platform_set_drvdata(dev, NULL);
mcp_host_unregister(mcp);
release_mem_region(0x80060000, 0x60);
res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res_mem) {
size = res_mem->end - res_mem->start + 1;
release_mem_region(res_mem->start, size);
}
res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (res_mem) {
size = res_mem->end - res_mem->start + 1;
release_mem_region(res_mem->start, size);
}
iounmap(priv->mccr0_base);
iounmap(priv->mccr1_base);
return 0;
}
static int mcp_sa11x0_suspend(struct platform_device *dev, pm_message_t state)
{
struct mcp *mcp = platform_get_drvdata(dev);
struct mcp_sa11x0 *priv = priv(mcp);
u32 mccr0;
mccr0 = priv->mccr0 & ~MCCR0_MCE;
__raw_writel(mccr0, priv->mccr0_base + MCCR0);
priv(mcp)->mccr0 = Ser4MCCR0;
priv(mcp)->mccr1 = Ser4MCCR1;
Ser4MCCR0 &= ~MCCR0_MCE;
return 0;
}
@ -291,10 +232,9 @@ static int mcp_sa11x0_suspend(struct platform_device *dev, pm_message_t state)
static int mcp_sa11x0_resume(struct platform_device *dev)
{
struct mcp *mcp = platform_get_drvdata(dev);
struct mcp_sa11x0 *priv = priv(mcp);
__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
__raw_writel(priv->mccr1, priv->mccr1_base + MCCR1);
Ser4MCCR1 = priv(mcp)->mccr1;
Ser4MCCR0 = priv(mcp)->mccr0;
return 0;
}
@ -311,7 +251,6 @@ static struct platform_driver mcp_sa11x0_driver = {
.resume = mcp_sa11x0_resume,
.driver = {
.name = "sa11x0-mcp",
.owner = THIS_MODULE,
},
};

65
drivers/mfd/ucb1x00-core.c
View File

@ -36,15 +36,6 @@ static DEFINE_MUTEX(ucb1x00_mutex);
static LIST_HEAD(ucb1x00_drivers);
static LIST_HEAD(ucb1x00_devices);
static struct mcp_device_id ucb1x00_id[] = {
{ "ucb1x00", 0 }, /* auto-detection */
{ "ucb1200", UCB_ID_1200 },
{ "ucb1300", UCB_ID_1300 },
{ "tc35143", UCB_ID_TC35143 },
{ }
};
MODULE_DEVICE_TABLE(mcp, ucb1x00_id);
/**
* ucb1x00_io_set_dir - set IO direction
* @ucb: UCB1x00 structure describing chip
@ -157,16 +148,22 @@ static int ucb1x00_gpio_direction_output(struct gpio_chip *chip, unsigned offset
{
struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
unsigned long flags;
unsigned old, mask = 1 << offset;
spin_lock_irqsave(&ucb->io_lock, flags);
ucb->io_dir |= (1 << offset);
ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
old = ucb->io_out;
if (value)
ucb->io_out |= 1 << offset;
ucb->io_out |= mask;
else
ucb->io_out &= ~(1 << offset);
ucb->io_out &= ~mask;
if (old != ucb->io_out)
ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
if (!(ucb->io_dir & mask)) {
ucb->io_dir |= mask;
ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
}
spin_unlock_irqrestore(&ucb->io_lock, flags);
return 0;
@ -536,33 +533,17 @@ static struct class ucb1x00_class = {
static int ucb1x00_probe(struct mcp *mcp)
{
const struct mcp_device_id *mid;
struct ucb1x00 *ucb;
struct ucb1x00_driver *drv;
struct ucb1x00_plat_data *pdata;
unsigned int id;
int ret = -ENODEV;
int temp;
mcp_enable(mcp);
id = mcp_reg_read(mcp, UCB_ID);
mid = mcp_get_device_id(mcp);
if (mid && mid->driver_data) {
if (id != mid->driver_data) {
printk(KERN_WARNING "%s wrong ID %04x found: %04x\n",
mid->name, (unsigned int) mid->driver_data, id);
goto err_disable;
}
} else {
mid = &ucb1x00_id[1];
while (mid->driver_data) {
if (id == mid->driver_data)
break;
mid++;
}
printk(KERN_WARNING "%s ID not found: %04x\n",
ucb1x00_id[0].name, id);
if (id != UCB_ID_1200 && id != UCB_ID_1300 && id != UCB_ID_TC35143) {
printk(KERN_WARNING "UCB1x00 ID not found: %04x\n", id);
goto err_disable;
}
@ -571,28 +552,28 @@ static int ucb1x00_probe(struct mcp *mcp)
if (!ucb)
goto err_disable;
pdata = mcp->attached_device.platform_data;
ucb->dev.class = &ucb1x00_class;
ucb->dev.parent = &mcp->attached_device;
dev_set_name(&ucb->dev, mid->name);
dev_set_name(&ucb->dev, "ucb1x00");
spin_lock_init(&ucb->lock);
spin_lock_init(&ucb->io_lock);
sema_init(&ucb->adc_sem, 1);
ucb->id = mid;
ucb->id = id;
ucb->mcp = mcp;
ucb->irq = ucb1x00_detect_irq(ucb);
if (ucb->irq == NO_IRQ) {
printk(KERN_ERR "%s: IRQ probe failed\n", mid->name);
printk(KERN_ERR "UCB1x00: IRQ probe failed\n");
ret = -ENODEV;
goto err_free;
}
ucb->gpio.base = -1;
if (pdata && (pdata->gpio_base >= 0)) {
if (mcp->gpio_base != 0) {
ucb->gpio.label = dev_name(&ucb->dev);
ucb->gpio.base = pdata->gpio_base;
ucb->gpio.base = mcp->gpio_base;
ucb->gpio.ngpio = 10;
ucb->gpio.set = ucb1x00_gpio_set;
ucb->gpio.get = ucb1x00_gpio_get;
@ -605,10 +586,10 @@ static int ucb1x00_probe(struct mcp *mcp)
dev_info(&ucb->dev, "gpio_base not set so no gpiolib support");
ret = request_irq(ucb->irq, ucb1x00_irq, IRQF_TRIGGER_RISING,
mid->name, ucb);
"UCB1x00", ucb);
if (ret) {
printk(KERN_ERR "%s: unable to grab irq%d: %d\n",
mid->name, ucb->irq, ret);
printk(KERN_ERR "ucb1x00: unable to grab irq%d: %d\n",
ucb->irq, ret);
goto err_gpio;
}
@ -712,6 +693,7 @@ static int ucb1x00_resume(struct mcp *mcp)
struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
struct ucb1x00_dev *dev;
ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
mutex_lock(&ucb1x00_mutex);
list_for_each_entry(dev, &ucb->devs, dev_node) {
@ -730,7 +712,6 @@ static struct mcp_driver ucb1x00_driver = {
.remove = ucb1x00_remove,
.suspend = ucb1x00_suspend,
.resume = ucb1x00_resume,
.id_table = ucb1x00_id,
};
static int __init ucb1x00_init(void)

34
drivers/mfd/ucb1x00-ts.c
View File

@ -47,7 +47,6 @@ struct ucb1x00_ts {
u16 x_res;
u16 y_res;
unsigned int restart:1;
unsigned int adcsync:1;
};
@ -207,15 +206,17 @@ static int ucb1x00_thread(void *_ts)
{
struct ucb1x00_ts *ts = _ts;
DECLARE_WAITQUEUE(wait, current);
bool frozen, ignore = false;
int valid = 0;
set_freezable();
add_wait_queue(&ts->irq_wait, &wait);
while (!kthread_should_stop()) {
while (!kthread_freezable_should_stop(&frozen)) {
unsigned int x, y, p;
signed long timeout;
ts->restart = 0;
if (frozen)
ignore = true;
ucb1x00_adc_enable(ts->ucb);
@ -258,7 +259,7 @@ static int ucb1x00_thread(void *_ts)
* space. We therefore leave it to user space
* to do any filtering they please.
*/
if (!ts->restart) {
if (!ignore) {
ucb1x00_ts_evt_add(ts, p, x, y);
valid = 1;
}
@ -267,8 +268,6 @@ static int ucb1x00_thread(void *_ts)
timeout = HZ / 100;
}
try_to_freeze();
schedule_timeout(timeout);
}
@ -340,26 +339,6 @@ static void ucb1x00_ts_close(struct input_dev *idev)
ucb1x00_disable(ts->ucb);
}
#ifdef CONFIG_PM
static int ucb1x00_ts_resume(struct ucb1x00_dev *dev)
{
struct ucb1x00_ts *ts = dev->priv;
if (ts->rtask != NULL) {
/*
* Restart the TS thread to ensure the
* TS interrupt mode is set up again
* after sleep.
*/
ts->restart = 1;
wake_up(&ts->irq_wait);
}
return 0;
}
#else
#define ucb1x00_ts_resume NULL
#endif
/*
* Initialisation.
@ -382,7 +361,7 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC;
idev->name = "Touchscreen panel";
idev->id.product = ts->ucb->id->driver_data;
idev->id.product = ts->ucb->id;
idev->open = ucb1x00_ts_open;
idev->close = ucb1x00_ts_close;
@ -425,7 +404,6 @@ static void ucb1x00_ts_remove(struct ucb1x00_dev *dev)
static struct ucb1x00_driver ucb1x00_ts_driver = {
.add = ucb1x00_ts_add,
.remove = ucb1x00_ts_remove,
.resume = ucb1x00_ts_resume,
};
static int __init ucb1x00_ts_init(void)

3
fs/inode.c
View File

@ -322,9 +322,6 @@ EXPORT_SYMBOL(clear_nlink);
void set_nlink(struct inode *inode, unsigned int nlink)
{
if (!nlink) {
printk_ratelimited(KERN_INFO
"set_nlink() clearing i_nlink on %s inode %li\n",
inode->i_sb->s_type->name, inode->i_ino);
clear_nlink(inode);
} else {
/* Yes, some filesystems do change nlink from zero to one */

2
fs/proc/stat.c
View File

@ -77,6 +77,8 @@ static int show_stat(struct seq_file *p, void *v)
steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
sum += kstat_cpu_irqs_sum(i);
sum += arch_irq_stat_cpu(i);
for (j = 0; j < NR_SOFTIRQS; j++) {
unsigned int softirq_stat = kstat_softirqs_cpu(j, i);

38
fs/qnx4/inode.c
View File

@ -179,47 +179,33 @@ static const char *qnx4_checkroot(struct super_block *sb)
struct qnx4_inode_entry *rootdir;
int rd, rl;
int i, j;
int found = 0;
if (*(qnx4_sb(sb)->sb->RootDir.di_fname) != '/') {
if (*(qnx4_sb(sb)->sb->RootDir.di_fname) != '/')
return "no qnx4 filesystem (no root dir).";
} else {
QNX4DEBUG((KERN_NOTICE "QNX4 filesystem found on dev %s.\n", sb->s_id));
rd = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_blk) - 1;
rl = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_size);
for (j = 0; j < rl; j++) {
bh = sb_bread(sb, rd + j); /* root dir, first block */
if (bh == NULL) {
if (bh == NULL)
return "unable to read root entry.";
}
for (i = 0; i < QNX4_INODES_PER_BLOCK; i++) {
rootdir = (struct qnx4_inode_entry *) (bh->b_data + i * QNX4_DIR_ENTRY_SIZE);
if (rootdir->di_fname != NULL) {
rootdir = (struct qnx4_inode_entry *) bh->b_data;
for (i = 0; i < QNX4_INODES_PER_BLOCK; i++, rootdir++) {
QNX4DEBUG((KERN_INFO "rootdir entry found : [%s]\n", rootdir->di_fname));
if (!strcmp(rootdir->di_fname,
QNX4_BMNAME)) {
found = 1;
if (strcmp(rootdir->di_fname, QNX4_BMNAME) != 0)
continue;
qnx4_sb(sb)->BitMap = kmemdup(rootdir,
sizeof(struct qnx4_inode_entry),
GFP_KERNEL);
if (!qnx4_sb(sb)->BitMap) {
brelse (bh);
brelse(bh);
if (!qnx4_sb(sb)->BitMap)
return "not enough memory for bitmap inode";
}/* keep bitmap inode known */
break;
}
}
/* keep bitmap inode known */
return NULL;
}
brelse(bh);
if (found != 0) {
break;
}
}
if (found == 0) {
return "bitmap file not found.";
}
}
return NULL;
}
static int qnx4_fill_super(struct super_block *s, void *data, int silent)
@ -270,7 +256,7 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
if (IS_ERR(root)) {
printk(KERN_ERR "qnx4: get inode failed\n");
ret = PTR_ERR(root);
goto out;
goto outb;
}
ret = -ENOMEM;
@ -283,6 +269,8 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
outi:
iput(root);
outb:
kfree(qs->BitMap);
out:
brelse(bh);
outnobh:

2
fs/super.c
View File

@ -1186,6 +1186,8 @@ int freeze_super(struct super_block *sb)
printk(KERN_ERR
"VFS:Filesystem freeze failed\n");
sb->s_frozen = SB_UNFROZEN;
smp_wmb();
wake_up(&sb->s_wait_unfrozen);
deactivate_locked_super(sb);
return ret;
}

2
include/linux/key.h
View File

@ -271,7 +271,7 @@ extern int keyring_add_key(struct key *keyring,
extern struct key *key_lookup(key_serial_t id);
static inline key_serial_t key_serial(struct key *key)
static inline key_serial_t key_serial(const struct key *key)
{
return key ? key->serial : 0;
}

12
include/linux/mfd/mcp.h
View File

@ -10,7 +10,6 @@
#ifndef MCP_H
#define MCP_H
#include <linux/mod_devicetable.h>
#include <mach/dma.h>
struct mcp_ops;
@ -27,7 +26,7 @@ struct mcp {
dma_device_t dma_telco_rd;
dma_device_t dma_telco_wr;
struct device attached_device;
const char *codec;
int gpio_base;
};
struct mcp_ops {
@ -45,11 +44,10 @@ void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
unsigned int mcp_reg_read(struct mcp *, unsigned int);
void mcp_enable(struct mcp *);
void mcp_disable(struct mcp *);
const struct mcp_device_id *mcp_get_device_id(const struct mcp *mcp);
#define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate)
struct mcp *mcp_host_alloc(struct device *, size_t);
int mcp_host_register(struct mcp *, void *);
int mcp_host_register(struct mcp *);
void mcp_host_unregister(struct mcp *);
struct mcp_driver {
@ -58,7 +56,6 @@ struct mcp_driver {
void (*remove)(struct mcp *);
int (*suspend)(struct mcp *, pm_message_t);
int (*resume)(struct mcp *);
const struct mcp_device_id *id_table;
};
int mcp_driver_register(struct mcp_driver *);
@ -67,6 +64,9 @@ void mcp_driver_unregister(struct mcp_driver *);
#define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device)
#define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d)
#define mcp_priv(mcp) ((void *)((mcp)+1))
static inline void *mcp_priv(struct mcp *mcp)
{
return mcp + 1;
}
#endif

5
include/linux/mfd/ucb1x00.h
View File

@ -104,9 +104,6 @@
#define UCB_MODE_DYN_VFLAG_ENA (1 << 12)
#define UCB_MODE_AUD_OFF_CAN (1 << 13)
struct ucb1x00_plat_data {
int gpio_base;
};
struct ucb1x00_irq {
void *devid;
@ -119,7 +116,7 @@ struct ucb1x00 {
unsigned int irq;
struct semaphore adc_sem;
spinlock_t io_lock;
const struct mcp_device_id *id;
u16 id;
u16 io_dir;
u16 io_out;
u16 adc_cr;

11
include/linux/mod_devicetable.h
View File

@ -436,17 +436,6 @@ struct spi_device_id {
__attribute__((aligned(sizeof(kernel_ulong_t))));
};
/* mcp */
#define MCP_NAME_SIZE 20
#define MCP_MODULE_PREFIX "mcp:"
struct mcp_device_id {
char name[MCP_NAME_SIZE];
kernel_ulong_t driver_data /* Data private to the driver */
__attribute__((aligned(sizeof(kernel_ulong_t))));
};
/* dmi */
enum dmi_field {
DMI_NONE,

7
kernel/tracepoint.c
View File

@ -634,10 +634,11 @@ static int tracepoint_module_coming(struct module *mod)
int ret = 0;
/*
* We skip modules that tain the kernel, especially those with different
* module header (for forced load), to make sure we don't cause a crash.
* We skip modules that taint the kernel, especially those with different
* module headers (for forced load), to make sure we don't cause a crash.
* Staging and out-of-tree GPL modules are fine.
*/
if (mod->taints)
if (mod->taints & ~((1 << TAINT_OOT_MODULE) | (1 << TAINT_CRAP)))
return 0;
mutex_lock(&tracepoints_mutex);
tp_mod = kmalloc(sizeof(struct tp_module), GFP_KERNEL);

2
lib/mpi/mpicoder.c
View File

@ -255,6 +255,8 @@ void *mpi_get_buffer(MPI a, unsigned *nbytes, int *sign)
if (!n)
n++; /* avoid zero length allocation */
p = buffer = kmalloc(n, GFP_KERNEL);
if (!p)
return NULL;
for (i = a->nlimbs - 1; i >= 0; i--) {
alimb = a->d[i];

10
scripts/mod/file2alias.c
View File

@ -823,16 +823,6 @@ static int do_spi_entry(const char *filename, struct spi_device_id *id,
}
ADD_TO_DEVTABLE("spi", struct spi_device_id, do_spi_entry);
/* Looks like: mcp:S */
static int do_mcp_entry(const char *filename, struct mcp_device_id *id,
char *alias)
{
sprintf(alias, MCP_MODULE_PREFIX "%s", id->name);
return 1;
}
ADD_TO_DEVTABLE("mcp", struct mcp_device_id, do_mcp_entry);
static const struct dmifield {
const char *prefix;
int field;

3
security/integrity/ima/ima_policy.c
View File

@ -99,6 +99,7 @@ static bool ima_match_rules(struct ima_measure_rule_entry *rule,
struct inode *inode, enum ima_hooks func, int mask)
{
struct task_struct *tsk = current;
const struct cred *cred = current_cred();
int i;
if ((rule->flags & IMA_FUNC) && rule->func != func)
@ -108,7 +109,7 @@ static bool ima_match_rules(struct ima_measure_rule_entry *rule,
if ((rule->flags & IMA_FSMAGIC)
&& rule->fsmagic != inode->i_sb->s_magic)
return false;
if ((rule->flags & IMA_UID) && rule->uid != tsk->cred->uid)
if ((rule->flags & IMA_UID) && rule->uid != cred->uid)
return false;
for (i = 0; i < MAX_LSM_RULES; i++) {
int rc = 0;

6
security/keys/user_defined.c
View File

@ -59,7 +59,7 @@ int user_instantiate(struct key *key, const void *data, size_t datalen)
/* attach the data */
upayload->datalen = datalen;
memcpy(upayload->data, data, datalen);
rcu_assign_pointer(key->payload.data, upayload);
rcu_assign_keypointer(key, upayload);
ret = 0;
error:
@ -98,7 +98,7 @@ int user_update(struct key *key, const void *data, size_t datalen)
if (ret == 0) {
/* attach the new data, displacing the old */
zap = key->payload.data;
rcu_assign_pointer(key->payload.data, upayload);
rcu_assign_keypointer(key, upayload);
key->expiry = 0;
}
@ -133,7 +133,7 @@ void user_revoke(struct key *key)
key_payload_reserve(key, 0);
if (upayload) {
rcu_assign_pointer(key->payload.data, NULL);
rcu_assign_keypointer(key, NULL);
kfree_rcu(upayload, rcu);
}
}