patch-2.4.20 linux-2.4.20/include/asm-mips64/sibyte/sb1250_prof.h
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- Lines: 134
- Date:
Thu Nov 28 15:53:15 2002
- Orig file:
linux-2.4.19/include/asm-mips64/sibyte/sb1250_prof.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/include/asm-mips64/sibyte/sb1250_prof.h linux-2.4.20/include/asm-mips64/sibyte/sb1250_prof.h
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2001 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ *
+ * Definitions for the sb1250_prof pseudo device.
+ *
+ */
+//#include <sys/param.h>
+//#include <sys/device.h>
+
+#ifndef SB1250_PROF_H
+#define SB1250_PROF_H 1
+
+#define MAXCPUS 1
+#define NEWPIDSIZE 160
+/* The two definitions below must match those in pgather.c */
+#define MAX_COUNTERS 4
+#define MAX_SLOTS 8
+
+#define STATS
+
+typedef struct {
+ u_int8_t event;
+ u_int8_t hwcode; /* pcarch-specific bits identifying desired event */
+ u_int64_t period; /* 40-bit sampling period during slot */
+} sbprof_mux_counter_t;
+
+typedef struct {
+ sbprof_mux_counter_t
+ counter[MAX_COUNTERS]; /* data for setting up counter */
+ u_int8_t n; /* number of counters to use in slot */
+} sbprof_mux_slot_t;
+
+typedef struct {
+ sbprof_mux_slot_t slots[MAX_SLOTS];
+} sbprof_mux_slots;
+
+typedef struct {
+ u_int64_t total; /* total number of interrupts */
+ u_int64_t dropped; /* total interrupts when buffers were full */
+ u_int64_t value; /* initial counter value when slot next entered */
+ u_int32_t start_period_low; /* counter val for starting a period */
+ u_int8_t start_period_high;
+ u_int8_t event; /* pcarch-specific event_t */
+ u_int8_t hwcode; /* pcarch-specific code for event */
+ u_int8_t inuse; /* Is counter X slot actually used? */
+} event_counter_state_t;
+
+typedef struct {
+ u_int32_t total; /* total for current run of slot */
+ u_int32_t dropped; /* dropped for current run of slot */
+ u_int64_t start_period;/* counter value to start a full period */
+} active_counter_state_t;
+
+struct _cpudata1 {
+ /******* page-aligned boundary *********************************************/
+ u_int32_t last_pid; /* Pid for last sample in buffer (-1 initially) */
+ u_int8_t curbuf; /* 2 -> both buffers full at end of last interrupt
+ 1 -> use buffer[1]
+ 0 -> use buffer[0] */
+ u_int8_t nextbuf; /* the index of the next buffer to be filled */
+ u_int8_t nnewpid[2]; /* number of entries set in new_pid[i] */
+ u_int32_t next; /* index of next free entry in curbuf */
+ int32_t last_event; /* index of byte just past last event DP_D_EVENTS
+ message in curbuf that needs the number of events
+ filled in. -1 means there is no such message and
+ that such a message must be entered before
+ adding event samples.
+ */
+ /* 16-byte boundary */
+ volatile u_int32_t full[2];
+ /* full[i] > 0 means buffer[i] needs emptying.
+ 0 to nonzero done by sbprofintr().
+ nonzero to zero by sbprofioctl().
+ When nonzero, full[i] is the number of bytes
+ set in buffer[i].
+ */
+ u_int32_t threshold; /* when does the current multiplexing slot expire? */
+ u_int8_t slotid; /* index into slots[] of current multiplexing slot */
+ u_int8_t nslots; /* number of slots */
+ u_int8_t needs_scan;
+ u_int8_t pad[1];
+ /******* 32-byte boundary *********************************************/
+ active_counter_state_t cur_slot[MAX_COUNTERS];
+ /******* 32-byte boundary *********************************************/
+ event_counter_state_t event_counter_state[MAX_SLOTS][MAX_COUNTERS];
+ /******* 32-byte boundary *********************************************/
+ u_int32_t overshot[MAX_SLOTS];
+
+ u_int32_t newpid[2][NEWPIDSIZE]; /* new_pid[i][] contains indices of
+ buffer[i][] where a new_pid message
+ is encoded and needs to have the
+ image_id, base addr, and num_inst
+ fields set by the user-level daemon */
+#ifdef STATS
+ u_int64_t newpidlimit;
+ u_int64_t buflimit;
+#endif
+};
+
+#define SBPROF_BUFSIZE (32*1024 - (sizeof(struct _cpudata1)+1)/2)
+
+typedef struct _cpudata {
+ struct _cpudata1 x;
+ u_int8_t buffer[2][SBPROF_BUFSIZE];
+} cpudata_t;
+
+#define SBPROF_START _IOW('S', 0x1, sbprof_mux_slots)
+#define SBPROF_STOP _IO('S', 0x2)
+#define SBPROF_BUFFULL _IOWR('S', 0x3, int)
+#define SBPROF_BUFEMPTY _IOW('S', 0x4, int)
+
+#if NEWPIDSIZE > 254
+#error "newpidsize too big"
+#endif
+
+#endif /* SB1250_PROF_H */
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