1 files changed, 274 insertions, 0 deletions
diff --git a/drivers/gpu/arm/mali400/r4p0_rel0/linux/mali_profiling_internal.c b/drivers/gpu/arm/mali400/r4p0_rel0/linux/mali_profiling_internal.c
new file mode 100644
index 00000000000..63e2e3247f4
--- /dev/null
+++ b/drivers/gpu/arm/mali400/r4p0_rel0/linux/mali_profiling_internal.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (C) 2010-2012 ARM Limited. All rights reserved.
+ * 
+ * This program is free software and is provided to you under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
+ * 
+ * A copy of the licence is included with the program, and can also be obtained from Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "mali_kernel_common.h"
+#include "mali_osk.h"
+#include "mali_osk_mali.h"
+#include "mali_ukk.h"
+#include "mali_timestamp.h"
+#include "mali_osk_profiling.h"
+#include "mali_user_settings_db.h"
+#include "mali_profiling_internal.h"
+
+typedef struct mali_profiling_entry {
+	u64 timestamp;
+	u32 event_id;
+	u32 data[5];
+} mali_profiling_entry;
+
+typedef enum mali_profiling_state {
+	MALI_PROFILING_STATE_UNINITIALIZED,
+	MALI_PROFILING_STATE_IDLE,
+	MALI_PROFILING_STATE_RUNNING,
+	MALI_PROFILING_STATE_RETURN,
+} mali_profiling_state;
+
+static _mali_osk_mutex_t *lock = NULL;
+static mali_profiling_state prof_state = MALI_PROFILING_STATE_UNINITIALIZED;
+static mali_profiling_entry* profile_entries = NULL;
+static _mali_osk_atomic_t profile_insert_index;
+static u32 profile_mask = 0;
+
+static inline void add_event(u32 event_id, u32 data0, u32 data1, u32 data2, u32 data3, u32 data4);
+
+void probe_mali_timeline_event(void *data, TP_PROTO(unsigned int event_id, unsigned int d0, unsigned int d1, unsigned
+                               int d2, unsigned int d3, unsigned int d4))
+{
+	add_event(event_id, d0, d1, d2, d3, d4);
+}
+
+_mali_osk_errcode_t _mali_internal_profiling_init(mali_bool auto_start)
+{
+	profile_entries = NULL;
+	profile_mask = 0;
+	_mali_osk_atomic_init(&profile_insert_index, 0);
+
+	lock = _mali_osk_mutex_init(_MALI_OSK_LOCKFLAG_ORDERED, _MALI_OSK_LOCK_ORDER_PROFILING);
+	if (NULL == lock) {
+		return _MALI_OSK_ERR_FAULT;
+	}
+
+	prof_state = MALI_PROFILING_STATE_IDLE;
+
+	if (MALI_TRUE == auto_start) {
+		u32 limit = MALI_PROFILING_MAX_BUFFER_ENTRIES; /* Use maximum buffer size */
+
+		mali_set_user_setting(_MALI_UK_USER_SETTING_SW_EVENTS_ENABLE, MALI_TRUE);
+		if (_MALI_OSK_ERR_OK != _mali_internal_profiling_start(&limit)) {
+			return _MALI_OSK_ERR_FAULT;
+		}
+	}
+
+	return _MALI_OSK_ERR_OK;
+}
+
+void _mali_internal_profiling_term(void)
+{
+	u32 count;
+
+	/* Ensure profiling is stopped */
+	_mali_internal_profiling_stop(&count);
+
+	prof_state = MALI_PROFILING_STATE_UNINITIALIZED;
+
+	if (NULL != profile_entries) {
+		_mali_osk_vfree(profile_entries);
+		profile_entries = NULL;
+	}
+
+	if (NULL != lock) {
+		_mali_osk_mutex_term(lock);
+		lock = NULL;
+	}
+}
+
+_mali_osk_errcode_t _mali_internal_profiling_start(u32 * limit)
+{
+	_mali_osk_errcode_t ret;
+	mali_profiling_entry *new_profile_entries;
+
+	_mali_osk_mutex_wait(lock);
+
+	if (MALI_PROFILING_STATE_RUNNING == prof_state) {
+		_mali_osk_mutex_signal(lock);
+		return _MALI_OSK_ERR_BUSY;
+	}
+
+	new_profile_entries = _mali_osk_valloc(*limit * sizeof(mali_profiling_entry));
+
+	if (NULL == new_profile_entries) {
+		_mali_osk_vfree(new_profile_entries);
+		return _MALI_OSK_ERR_NOMEM;
+	}
+
+	if (MALI_PROFILING_MAX_BUFFER_ENTRIES < *limit) {
+		*limit = MALI_PROFILING_MAX_BUFFER_ENTRIES;
+	}
+
+	profile_mask = 1;
+	while (profile_mask <= *limit) {
+		profile_mask <<= 1;
+	}
+	profile_mask >>= 1;
+
+	*limit = profile_mask;
+
+	profile_mask--; /* turns the power of two into a mask of one less */
+
+	if (MALI_PROFILING_STATE_IDLE != prof_state) {
+		_mali_osk_mutex_signal(lock);
+		_mali_osk_vfree(new_profile_entries);
+		return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
+	}
+
+	profile_entries = new_profile_entries;
+
+	ret = _mali_timestamp_reset();
+
+	if (_MALI_OSK_ERR_OK == ret) {
+		prof_state = MALI_PROFILING_STATE_RUNNING;
+	} else {
+		_mali_osk_vfree(profile_entries);
+		profile_entries = NULL;
+	}
+
+	register_trace_mali_timeline_event(probe_mali_timeline_event, NULL);
+
+	_mali_osk_mutex_signal(lock);
+	return ret;
+}
+
+static inline void add_event(u32 event_id, u32 data0, u32 data1, u32 data2, u32 data3, u32 data4)
+{
+	u32 cur_index = (_mali_osk_atomic_inc_return(&profile_insert_index) - 1) & profile_mask;
+
+	profile_entries[cur_index].timestamp = _mali_timestamp_get();
+	profile_entries[cur_index].event_id = event_id;
+	profile_entries[cur_index].data[0] = data0;
+	profile_entries[cur_index].data[1] = data1;
+	profile_entries[cur_index].data[2] = data2;
+	profile_entries[cur_index].data[3] = data3;
+	profile_entries[cur_index].data[4] = data4;
+
+	/* If event is "leave API function", add current memory usage to the event
+	 * as data point 4.  This is used in timeline profiling to indicate how
+	 * much memory was used when leaving a function. */
+	if (event_id == (MALI_PROFILING_EVENT_TYPE_SINGLE|MALI_PROFILING_EVENT_CHANNEL_SOFTWARE|MALI_PROFILING_EVENT_REASON_SINGLE_SW_LEAVE_API_FUNC)) {
+		profile_entries[cur_index].data[4] = _mali_ukk_report_memory_usage();
+	}
+}
+
+_mali_osk_errcode_t _mali_internal_profiling_stop(u32 * count)
+{
+	_mali_osk_mutex_wait(lock);
+
+	if (MALI_PROFILING_STATE_RUNNING != prof_state) {
+		_mali_osk_mutex_signal(lock);
+		return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
+	}
+
+	/* go into return state (user to retreive events), no more events will be added after this */
+	prof_state = MALI_PROFILING_STATE_RETURN;
+
+	unregister_trace_mali_timeline_event(probe_mali_timeline_event, NULL);
+
+	_mali_osk_mutex_signal(lock);
+
+	tracepoint_synchronize_unregister();
+
+	*count = _mali_osk_atomic_read(&profile_insert_index);
+	if (*count > profile_mask) *count = profile_mask;
+
+	return _MALI_OSK_ERR_OK;
+}
+
+u32 _mali_internal_profiling_get_count(void)
+{
+	u32 retval = 0;
+
+	_mali_osk_mutex_wait(lock);
+	if (MALI_PROFILING_STATE_RETURN == prof_state) {
+		retval = _mali_osk_atomic_read(&profile_insert_index);
+		if (retval > profile_mask) retval = profile_mask;
+	}
+	_mali_osk_mutex_signal(lock);
+
+	return retval;
+}
+
+_mali_osk_errcode_t _mali_internal_profiling_get_event(u32 index, u64* timestamp, u32* event_id, u32 data[5])
+{
+	u32 raw_index = _mali_osk_atomic_read(&profile_insert_index);
+
+	_mali_osk_mutex_wait(lock);
+
+	if (index < profile_mask) {
+		if ((raw_index & ~profile_mask) != 0) {
+			index += raw_index;
+			index &= profile_mask;
+		}
+
+		if (prof_state != MALI_PROFILING_STATE_RETURN) {
+			_mali_osk_mutex_signal(lock);
+			return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
+		}
+
+		if(index >= raw_index) {
+			_mali_osk_mutex_signal(lock);
+			return _MALI_OSK_ERR_FAULT;
+		}
+
+		*timestamp = profile_entries[index].timestamp;
+		*event_id = profile_entries[index].event_id;
+		data[0] = profile_entries[index].data[0];
+		data[1] = profile_entries[index].data[1];
+		data[2] = profile_entries[index].data[2];
+		data[3] = profile_entries[index].data[3];
+		data[4] = profile_entries[index].data[4];
+	} else {
+		_mali_osk_mutex_signal(lock);
+		return _MALI_OSK_ERR_FAULT;
+	}
+
+	_mali_osk_mutex_signal(lock);
+	return _MALI_OSK_ERR_OK;
+}
+
+_mali_osk_errcode_t _mali_internal_profiling_clear(void)
+{
+	_mali_osk_mutex_wait(lock);
+
+	if (MALI_PROFILING_STATE_RETURN != prof_state) {
+		_mali_osk_mutex_signal(lock);
+		return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
+	}
+
+	prof_state = MALI_PROFILING_STATE_IDLE;
+	profile_mask = 0;
+	_mali_osk_atomic_init(&profile_insert_index, 0);
+
+	if (NULL != profile_entries) {
+		_mali_osk_vfree(profile_entries);
+		profile_entries = NULL;
+	}
+
+	_mali_osk_mutex_signal(lock);
+	return _MALI_OSK_ERR_OK;
+}
+
+mali_bool _mali_internal_profiling_is_recording(void)
+{
+	return prof_state == MALI_PROFILING_STATE_RUNNING ? MALI_TRUE : MALI_FALSE;
+}
+
+mali_bool _mali_internal_profiling_have_recording(void)
+{
+	return prof_state == MALI_PROFILING_STATE_RETURN ? MALI_TRUE : MALI_FALSE;
+}