#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/errno.h>
-#include <linux/types.h>
#include <linux/wait.h>
-
#include <asm/io.h>
#include <asm/sibyte/sb1250.h>
+
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+#include <asm/sibyte/bcm1480_regs.h>
+#include <asm/sibyte/bcm1480_scd.h>
+#include <asm/sibyte/bcm1480_int.h>
+#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
#include <asm/sibyte/sb1250_regs.h>
#include <asm/sibyte/sb1250_scd.h>
#include <asm/sibyte/sb1250_int.h>
+#else
+#error invalid SiByte UART configuation
+#endif
+
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+#undef K_INT_TRACE_FREEZE
+#define K_INT_TRACE_FREEZE K_BCM1480_INT_TRACE_FREEZE
+#undef K_INT_PERF_CNT
+#define K_INT_PERF_CNT K_BCM1480_INT_PERF_CNT
+#endif
+
#include <asm/system.h>
#include <asm/uaccess.h>
: /* inputs */ \
: /* modifies */ "$8" )
-#define DEVNAME "bcm1250_tbprof"
+#define DEVNAME "sb_tbprof"
#define TB_FULL (sbp.next_tb_sample == MAX_TB_SAMPLES)
* overflow.
*
* We map the interrupt for trace_buffer_freeze to handle it on CPU 0.
+ *
*/
static u64 tb_period;
u64 tb_options = M_SCD_TRACE_CFG_FREEZE_FULL;
/*
- * Generate an SCD_PERFCNT interrupt in TB_PERIOD Zclks to trigger
- *start of trace. XXX vary sampling period
+ * Generate an SCD_PERFCNT interrupt in TB_PERIOD Zclks to
+ * trigger start of trace. XXX vary sampling period
*/
__raw_writeq(0, IOADDR(A_SCD_PERF_CNT_1));
scdperfcnt = __raw_readq(IOADDR(A_SCD_PERF_CNT_CFG));
/*
- * Unfortunately, in Pass 2 we must clear all counters to knock down a
- * previous interrupt request. This means that bus profiling requires
- * ALL of the SCD perf counters.
+ * Unfortunately, in Pass 2 we must clear all counters to knock down
+ * a previous interrupt request. This means that bus profiling
+ * requires ALL of the SCD perf counters.
*/
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+ __raw_writeq((scdperfcnt & ~M_SPC_CFG_SRC1) |
+ /* keep counters 0,2,3,4,5,6,7 as is */
+ V_SPC_CFG_SRC1(1), /* counter 1 counts cycles */
+ IOADDR(A_BCM1480_SCD_PERF_CNT_CFG0));
+ __raw_writeq(
+ M_SPC_CFG_ENABLE | /* enable counting */
+ M_SPC_CFG_CLEAR | /* clear all counters */
+ V_SPC_CFG_SRC1(1), /* counter 1 counts cycles */
+ IOADDR(A_BCM1480_SCD_PERF_CNT_CFG1));
+#else
__raw_writeq((scdperfcnt & ~M_SPC_CFG_SRC1) |
/* keep counters 0,2,3 as is */
M_SPC_CFG_ENABLE | /* enable counting */
M_SPC_CFG_CLEAR | /* clear all counters */
V_SPC_CFG_SRC1(1), /* counter 1 counts cycles */
IOADDR(A_SCD_PERF_CNT_CFG));
+#endif
__raw_writeq(next, IOADDR(A_SCD_PERF_CNT_1));
-
/* Reset the trace buffer */
__raw_writeq(M_SCD_TRACE_CFG_RESET, IOADDR(A_SCD_TRACE_CFG));
#if 0 && defined(M_SCD_TRACE_CFG_FORCECNT)
/* Subscripts decrease to put bundle in the order */
/* t0 lo, t0 hi, t1 lo, t1 hi, t2 lo, t2 hi */
p[i - 1] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t2 hi */
+ /* read t2 hi */
p[i - 2] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t2 lo */
+ /* read t2 lo */
p[i - 3] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t1 hi */
+ /* read t1 hi */
p[i - 4] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t1 lo */
+ /* read t1 lo */
p[i - 5] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t0 hi */
+ /* read t0 hi */
p[i - 6] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t0 lo */
+ /* read t0 lo */
}
if (!sbp.tb_enable) {
pr_debug(DEVNAME ": tb_intr shutdown\n");
__raw_writeq(M_SCD_TRACE_CFG_RESET,
IOADDR(A_SCD_TRACE_CFG));
sbp.tb_armed = 0;
- wake_up(&sbp.tb_sync);
+ wake_up_interruptible(&sbp.tb_sync);
} else {
- arm_tb(); /* knock down current interrupt and get another one later */
+ /* knock down current interrupt and get another one later */
+ arm_tb();
}
} else {
/* No more trace buffer samples */
pr_debug(DEVNAME ": tb_intr full\n");
__raw_writeq(M_SCD_TRACE_CFG_RESET, IOADDR(A_SCD_TRACE_CFG));
sbp.tb_armed = 0;
- if (!sbp.tb_enable) {
- wake_up(&sbp.tb_sync);
- }
- wake_up(&sbp.tb_read);
+ if (!sbp.tb_enable)
+ wake_up_interruptible(&sbp.tb_sync);
+ wake_up_interruptible(&sbp.tb_read);
}
-
return IRQ_HANDLED;
}
sbp.next_tb_sample = 0;
filp->f_pos = 0;
- err = request_irq(K_INT_TRACE_FREEZE, sbprof_tb_intr, 0,
- DEVNAME " trace freeze", &sbp);
+ err = request_irq (K_INT_TRACE_FREEZE, sbprof_tb_intr, 0,
+ DEVNAME " trace freeze", &sbp);
if (err)
return -EBUSY;
IOADDR(A_SCD_PERF_CNT_CFG));
/*
- * We grab this interrupt to prevent others from trying to use it, even
- * though we don't want to service the interrupts (they only feed into
- * the trace-on-interrupt mechanism)
+ * We grab this interrupt to prevent others from trying to use
+ * it, even though we don't want to service the interrupts
+ * (they only feed into the trace-on-interrupt mechanism)
*/
- err = request_irq(K_INT_PERF_CNT, sbprof_pc_intr, 0,
- DEVNAME " scd perfcnt", &sbp);
- if (err)
- goto out_free_irq;
+ if (request_irq(K_INT_PERF_CNT, sbprof_pc_intr, 0, DEVNAME " scd perfcnt", &sbp)) {
+ free_irq(K_INT_TRACE_FREEZE, &sbp);
+ return -EBUSY;
+ }
/*
- * I need the core to mask these, but the interrupt mapper to pass them
- * through. I am exploiting my knowledge that cp0_status masks out
- * IP[5]. krw
+ * I need the core to mask these, but the interrupt mapper to
+ * pass them through. I am exploiting my knowledge that
+ * cp0_status masks out IP[5]. krw
*/
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+ __raw_writeq(K_BCM1480_INT_MAP_I3,
+ IOADDR(A_BCM1480_IMR_REGISTER(0, R_BCM1480_IMR_INTERRUPT_MAP_BASE_L) +
+ ((K_BCM1480_INT_PERF_CNT & 0x3f) << 3)));
+#else
__raw_writeq(K_INT_MAP_I3,
IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MAP_BASE) +
(K_INT_PERF_CNT << 3)));
+#endif
/* Initialize address traps */
__raw_writeq(0, IOADDR(A_ADDR_TRAP_UP_0));
__raw_writeq(0, IOADDR(A_ADDR_TRAP_CFG_3));
/* Initialize Trace Event 0-7 */
- /* when interrupt */
+ /* when interrupt */
__raw_writeq(M_SCD_TREVT_INTERRUPT, IOADDR(A_SCD_TRACE_EVENT_0));
__raw_writeq(0, IOADDR(A_SCD_TRACE_EVENT_1));
__raw_writeq(0, IOADDR(A_SCD_TRACE_EVENT_2));
__raw_writeq(0, IOADDR(A_SCD_TRACE_SEQUENCE_7));
/* Now indicate the PERF_CNT interrupt as a trace-relevant interrupt */
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+ __raw_writeq(1ULL << (K_BCM1480_INT_PERF_CNT & 0x3f),
+ IOADDR(A_BCM1480_IMR_REGISTER(0, R_BCM1480_IMR_INTERRUPT_TRACE_L)));
+#else
__raw_writeq(1ULL << K_INT_PERF_CNT,
IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_TRACE)));
-
+#endif
arm_tb();
pr_debug(DEVNAME ": done starting\n");
return 0;
-
-out_free_irq:
- free_irq(K_INT_TRACE_FREEZE, &sbp);
-
- return err;
}
static int sbprof_zbprof_stop(void)
{
- int err;
+ int err = 0;
pr_debug(DEVNAME ": stopping\n");
pr_debug(DEVNAME ": done stopping\n");
- return 0;
+ return err;
}
static int sbprof_tb_open(struct inode *inode, struct file *filp)
return -EBUSY;
memset(&sbp, 0, sizeof(struct sbprof_tb));
-
sbp.sbprof_tbbuf = vmalloc(MAX_TBSAMPLE_BYTES);
if (!sbp.sbprof_tbbuf)
return -ENOMEM;
-
memset(sbp.sbprof_tbbuf, 0, MAX_TBSAMPLE_BYTES);
init_waitqueue_head(&sbp.tb_sync);
init_waitqueue_head(&sbp.tb_read);
static int sbprof_tb_release(struct inode *inode, struct file *filp)
{
- int minor = iminor(inode);
+ int minor;
+ minor = iminor(inode);
if (minor != 0 || !sbp.open)
return -ENODEV;
size_t size, loff_t *offp)
{
int cur_sample, sample_off, cur_count, sample_left;
- long cur_off = *offp;
- char *dest = buf;
- int count = 0;
char *src;
+ int count = 0;
+ char *dest = buf;
+ long cur_off = *offp;
if (!access_ok(VERIFY_WRITE, buf, size))
return -EFAULT;
mutex_unlock(&sbp.lock);
return err;
}
-
pr_debug(DEVNAME ": read from sample %d, %d bytes\n",
cur_sample, cur_count);
size -= cur_count;
dest += cur_count;
count += cur_count;
}
-
*offp = cur_off;
mutex_unlock(&sbp.lock);
return count;
}
-static long sbprof_tb_ioctl(struct file *filp, unsigned int command,
- unsigned long arg)
+static long sbprof_tb_ioctl(struct file *filp,
+ unsigned int command,
+ unsigned long arg)
{
- int error = 0;
+ int err = 0;
switch (command) {
case SBPROF_ZBSTART:
mutex_lock(&sbp.lock);
- error = sbprof_zbprof_start(filp);
+ err = sbprof_zbprof_start(filp);
mutex_unlock(&sbp.lock);
break;
case SBPROF_ZBSTOP:
mutex_lock(&sbp.lock);
- error = sbprof_zbprof_stop();
+ err = sbprof_zbprof_stop();
mutex_unlock(&sbp.lock);
break;
- case SBPROF_ZBWAITFULL:
- error = wait_event_interruptible(sbp.tb_read, TB_FULL);
- if (error)
+ case SBPROF_ZBWAITFULL: {
+ err = wait_event_interruptible(sbp.tb_read, TB_FULL);
+ if (err)
break;
- error = put_user(TB_FULL, (int *) arg);
+ err = put_user(TB_FULL, (int *) arg);
break;
+ }
default:
- error = -EINVAL;
+ err = -EINVAL;
break;
}
- return error;
+ return err;
}
static const struct file_operations sbprof_tb_fops = {
sbp.open = 0;
tb_period = zbbus_mhz * 10000LL;
- pr_info(DEVNAME ": initialized - tb_period = %lld\n", tb_period);
-
+ pr_info(DEVNAME ": initialized - tb_period = %lld\n",
+ (long long) tb_period);
return 0;
out_class:
projects / linux-beck.git / commitdiff