diff options
Diffstat (limited to 'drivers/gator/driver/gator_events_mali.c')
| -rw-r--r-- | drivers/gator/driver/gator_events_mali.c | 611 |
1 files changed, 0 insertions, 611 deletions
diff --git a/drivers/gator/driver/gator_events_mali.c b/drivers/gator/driver/gator_events_mali.c deleted file mode 100644 index 31e8f0d9030..00000000000 --- a/drivers/gator/driver/gator_events_mali.c +++ /dev/null @@ -1,611 +0,0 @@ -/** - * Copyright (C) ARM Limited 2010-2012. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "gator.h" - -#include <linux/module.h> -#include <linux/time.h> -#include <linux/math64.h> - -#include "linux/mali_linux_trace.h" - -#define ACTIVITY_START 1 -#define ACTIVITY_STOP 2 - -#ifndef MALI_SUPPORT -#error MALI_SUPPORT not defined! -#endif - -#define MALI_200 0x0a07 -#define MALI_300 0x0b06 //This is not actually true; Mali-300 is also 0x0b07 -#define MALI_400 0x0b07 -#define MALI_T6xx 0x0056 - -static const char *mali_name; - -enum counters { - /* Timeline activity */ - ACTIVITY_VP = 0, - ACTIVITY_FP0, - ACTIVITY_FP1, - ACTIVITY_FP2, - ACTIVITY_FP3, - - /* L2 cache counters */ - COUNTER_L2_C0, - COUNTER_L2_C1, - - /* Vertex processor counters */ - COUNTER_VP_C0, - COUNTER_VP_C1, - - /* Fragment processor counters */ - COUNTER_FP0_C0, - COUNTER_FP0_C1, - COUNTER_FP1_C0, - COUNTER_FP1_C1, - COUNTER_FP2_C0, - COUNTER_FP2_C1, - COUNTER_FP3_C0, - COUNTER_FP3_C1, - - /* EGL Software Counters */ - COUNTER_EGL_BLIT_TIME, - - /* GLES Software Counters */ - COUNTER_GLES_DRAW_ELEMENTS_CALLS, - COUNTER_GLES_DRAW_ELEMENTS_NUM_INDICES, - COUNTER_GLES_DRAW_ELEMENTS_NUM_TRANSFORMED, - COUNTER_GLES_DRAW_ARRAYS_CALLS, - COUNTER_GLES_DRAW_ARRAYS_NUM_TRANSFORMED, - COUNTER_GLES_DRAW_POINTS, - COUNTER_GLES_DRAW_LINES, - COUNTER_GLES_DRAW_LINE_LOOP, - COUNTER_GLES_DRAW_LINE_STRIP, - COUNTER_GLES_DRAW_TRIANGLES, - COUNTER_GLES_DRAW_TRIANGLE_STRIP, - COUNTER_GLES_DRAW_TRIANGLE_FAN, - COUNTER_GLES_NON_VBO_DATA_COPY_TIME, - COUNTER_GLES_UNIFORM_BYTES_COPIED_TO_MALI, - COUNTER_GLES_UPLOAD_TEXTURE_TIME, - COUNTER_GLES_UPLOAD_VBO_TIME, - COUNTER_GLES_NUM_FLUSHES, - COUNTER_GLES_NUM_VSHADERS_GENERATED, - COUNTER_GLES_NUM_FSHADERS_GENERATED, - COUNTER_GLES_VSHADER_GEN_TIME, - COUNTER_GLES_FSHADER_GEN_TIME, - COUNTER_GLES_INPUT_TRIANGLES, - COUNTER_GLES_VXCACHE_HIT, - COUNTER_GLES_VXCACHE_MISS, - COUNTER_GLES_VXCACHE_COLLISION, - COUNTER_GLES_CULLED_TRIANGLES, - COUNTER_GLES_CULLED_LINES, - COUNTER_GLES_BACKFACE_TRIANGLES, - COUNTER_GLES_GBCLIP_TRIANGLES, - COUNTER_GLES_GBCLIP_LINES, - COUNTER_GLES_TRIANGLES_DRAWN, - COUNTER_GLES_DRAWCALL_TIME, - COUNTER_GLES_TRIANGLES_COUNT, - COUNTER_GLES_INDEPENDENT_TRIANGLES_COUNT, - COUNTER_GLES_STRIP_TRIANGLES_COUNT, - COUNTER_GLES_FAN_TRIANGLES_COUNT, - COUNTER_GLES_LINES_COUNT, - COUNTER_GLES_INDEPENDENT_LINES_COUNT, - COUNTER_GLES_STRIP_LINES_COUNT, - COUNTER_GLES_LOOP_LINES_COUNT, - - COUNTER_FILMSTRIP, - - NUMBER_OF_EVENTS -}; - -#define FIRST_ACTIVITY_EVENT ACTIVITY_VP -#define LAST_ACTIVITY_EVENT ACTIVITY_FP3 - -#define FIRST_HW_COUNTER COUNTER_L2_C0 -#define LAST_HW_COUNTER COUNTER_FP3_C1 - -#define FIRST_SW_COUNTER COUNTER_EGL_BLIT_TIME -#define LAST_SW_COUNTER COUNTER_GLES_LOOP_LINES_COUNT - -#define FIRST_SPECIAL_COUNTER COUNTER_FILMSTRIP -#define LAST_SPECIAL_COUNTER COUNTER_FILMSTRIP - -/* gatorfs variables for counter enable state, - * the event the counter should count and the - * 'key' (a unique id set by gatord and returned - * by gator.ko) - */ -static unsigned long counter_enabled[NUMBER_OF_EVENTS]; -static unsigned long counter_event[NUMBER_OF_EVENTS]; -static unsigned long counter_key[NUMBER_OF_EVENTS]; - -/* The data we have recorded */ -static u32 counter_data[NUMBER_OF_EVENTS]; -/* The address to sample (or 0 if samples are sent to us) */ -static u32* counter_address[NUMBER_OF_EVENTS]; - -/* An array used to return the data we recorded - * as key,value pairs hence the *2 - */ -static unsigned long counter_dump[NUMBER_OF_EVENTS * 2]; -static unsigned long counter_prev[NUMBER_OF_EVENTS]; - -/* Note whether tracepoints have been registered */ -static int trace_registered; - -/** - * Calculate the difference and handle the overflow. - */ -static u32 get_difference(u32 start, u32 end) -{ - if (start - end >= 0) - { - return start - end; - } - - // Mali counters are unsigned 32 bit values that wrap. - return (4294967295u - end) + start; -} - -/** - * Returns non-zero if the given counter ID is an activity counter. - */ -static inline int is_activity_counter(unsigned int event_id) -{ - return (event_id >= FIRST_ACTIVITY_EVENT && - event_id <= LAST_ACTIVITY_EVENT); -} - -/** - * Returns non-zero if the given counter ID is a hardware counter. - */ -static inline int is_hw_counter(unsigned int event_id) -{ - return (event_id >= FIRST_HW_COUNTER && event_id <= LAST_HW_COUNTER); -} - -/** - * Returns non-zero if the given counter ID is a software counter. - */ -static inline int is_sw_counter(unsigned int event_id) -{ - return (event_id >= FIRST_SW_COUNTER && event_id <= LAST_SW_COUNTER); -} - -/* - * The Mali DDK uses s64 types to contain software counter values, but gator - * can only use a maximum of 32 bits. This function scales a software counter - * to an appopriate range. - */ -static u32 scale_sw_counter_value(unsigned int event_id, signed long long value) -{ - u32 scaled_value; - - switch (event_id) { - case COUNTER_GLES_UPLOAD_TEXTURE_TIME: - case COUNTER_GLES_UPLOAD_VBO_TIME: - scaled_value = (u32)div_s64(value, 1000000); - break; - default: - scaled_value = (u32)value; - break; - } - - return scaled_value; -} - -/* Probe for continuously sampled counter */ -#if 0 //WE_DONT_CURRENTLY_USE_THIS_SO_SUPPRESS_WARNING -GATOR_DEFINE_PROBE(mali_sample_address, TP_PROTO(unsigned int event_id, u32* addr)) -{ - /* Turning on too many pr_debug statements in frequently called functions - * can cause stability and/or performance problems - */ - //pr_debug("gator: mali_sample_address %d %d\n", event_id, addr); - if (event_id >= ACTIVITY_VP && event_id <= COUNTER_FP3_C1) { - counter_address[event_id] = addr; - } -} -#endif - -/* Probe for hardware counter events */ -GATOR_DEFINE_PROBE(mali_hw_counter, TP_PROTO(unsigned int event_id, unsigned int value)) -{ - /* Turning on too many pr_debug statements in frequently called functions - * can cause stability and/or performance problems - */ - //pr_debug("gator: mali_hw_counter %d %d\n", event_id, value); - if (is_hw_counter(event_id)) { - counter_data[event_id] = value; - } -} - -GATOR_DEFINE_PROBE(mali_sw_counter, TP_PROTO(unsigned int event_id, signed long long value)) -{ - if (is_sw_counter(event_id)) { - counter_data[event_id] = scale_sw_counter_value(event_id, value); - } -} - -//TODO need to work out how many fp units we have -u32 gator_mali_get_n_fp(void) { - return 4; -} - -//TODO need to work out what kind of Mali we are looking at -u32 gator_mali_get_id(void) { - return MALI_SUPPORT; -} - -int gator_events_mali_create_files(struct super_block *sb, struct dentry *root) { - struct dentry *dir; - int event; - int n_fp = gator_mali_get_n_fp(); - - /* - * Create the filesystem entries for vertex processor, fragement processor - * and L2 cache timeline and hardware counters. Software counters get - * special handling after this block. - */ - for (event = FIRST_ACTIVITY_EVENT; event <= LAST_HW_COUNTER; event++) - { - char buf[40]; - - /* - * We can skip this event if it's for a non-existent fragment - * processor. - */ - if (((event - ACTIVITY_FP0 >= n_fp) && (event < COUNTER_L2_C0)) || - (((event - COUNTER_FP0_C0)/2 >= n_fp))) - { - continue; - } - - /* Otherwise, set up the filesystem entry for this event. */ - switch (event) { - case ACTIVITY_VP: - snprintf(buf, sizeof buf, "ARM_%s_VP_active", mali_name); - break; - case ACTIVITY_FP0: - case ACTIVITY_FP1: - case ACTIVITY_FP2: - case ACTIVITY_FP3: - snprintf(buf, sizeof buf, "ARM_%s_FP%d_active", - mali_name, event - ACTIVITY_FP0); - break; - case COUNTER_L2_C0: - case COUNTER_L2_C1: - snprintf(buf, sizeof buf, "ARM_%s_L2_cnt%d", - mali_name, event - COUNTER_L2_C0); - break; - case COUNTER_VP_C0: - case COUNTER_VP_C1: - snprintf(buf, sizeof buf, "ARM_%s_VP_cnt%d", - mali_name, event - COUNTER_VP_C0); - break; - case COUNTER_FP0_C0: - case COUNTER_FP0_C1: - case COUNTER_FP1_C0: - case COUNTER_FP1_C1: - case COUNTER_FP2_C0: - case COUNTER_FP2_C1: - case COUNTER_FP3_C0: - case COUNTER_FP3_C1: - snprintf(buf, sizeof buf, "ARM_%s_FP%d_cnt%d", mali_name, - (event - COUNTER_FP0_C0) / 2, (event - COUNTER_FP0_C0) % 2); - break; - default: - printk("gator: trying to create file for non-existent counter (%d)\n", event); - continue; - } - - dir = gatorfs_mkdir(sb, root, buf); - - if (!dir) { - return -1; - } - - gatorfs_create_ulong(sb, dir, "enabled", &counter_enabled[event]); - - /* Only create an event node for counters that can change what they count */ - if (event >= COUNTER_L2_C0) { - gatorfs_create_ulong(sb, dir, "event", &counter_event[event]); - } - - gatorfs_create_ro_ulong(sb, dir, "key", &counter_key[event]); - } - - /* Now set up the software counter entries */ - for (event = FIRST_SW_COUNTER; event <= LAST_SW_COUNTER; event++) - { - char buf[40]; - - snprintf(buf, sizeof(buf), "ARM_%s_SW_%d", mali_name, event); - - dir = gatorfs_mkdir(sb, root, buf); - - if (!dir) { - return -1; - } - - gatorfs_create_ulong(sb, dir, "enabled", &counter_enabled[event]); - gatorfs_create_ro_ulong(sb, dir, "key", &counter_key[event]); - } - - /* Now set up the special counter entries */ - for (event = FIRST_SPECIAL_COUNTER; event <= LAST_SPECIAL_COUNTER; event++) - { - char buf[40]; - - snprintf(buf, sizeof(buf), "ARM_%s_Filmstrip", mali_name); - - dir = gatorfs_mkdir(sb, root, buf); - - if (!dir) { - return -1; - } - - gatorfs_create_ulong(sb, dir, "event", &counter_event[event]); - gatorfs_create_ulong(sb, dir, "enabled", &counter_enabled[event]); - gatorfs_create_ro_ulong(sb, dir, "key", &counter_key[event]); - } - - - return 0; -} - -//TODO -void _mali_profiling_set_event(unsigned int, unsigned int); -void _mali_osk_fb_control_set(unsigned int, unsigned int); - -void _mali_profiling_get_counters(unsigned int*, unsigned int*, unsigned int*, unsigned int*); -void (*_mali_profiling_get_counters_function_pointer)(unsigned int*, unsigned int*, unsigned int*, unsigned int*); - -static void mali_counter_initialize(void) -{ - /* If a Mali driver is present and exporting the appropriate symbol - * then we can request the HW counters (of which there are only 2) - * be configured to count the desired events - */ - void (*set_hw_event)(unsigned int, unsigned int); - void (*set_fb_event)(unsigned int, unsigned int); - - set_hw_event = symbol_get(_mali_profiling_set_event); - - if (set_hw_event) { - int i; - - pr_debug("gator: mali online _mali_profiling_set_event symbol @ %p\n",set_hw_event); - - for (i = FIRST_HW_COUNTER; i <= LAST_HW_COUNTER; i++) { - if (counter_enabled[i]) { - set_hw_event(i, counter_event[i]); - } else { - set_hw_event(i, 0xFFFFFFFF); - } - } - - symbol_put(_mali_profiling_set_event); - } else { - printk("gator: mali online _mali_profiling_set_event symbol not found\n"); - } - - set_fb_event = symbol_get(_mali_osk_fb_control_set); - - if (set_fb_event) { - pr_debug("gator: mali online _mali_osk_fb_control_set symbol @ %p\n", set_fb_event); - - set_fb_event(0,(counter_enabled[COUNTER_FILMSTRIP]?1:0)); - - symbol_put(_mali_osk_fb_control_set); - } else { - printk("gator: mali online _mali_osk_fb_control_set symbol not found\n"); - } - - _mali_profiling_get_counters_function_pointer = symbol_get(_mali_profiling_get_counters); - if (_mali_profiling_get_counters_function_pointer){ - pr_debug("gator: mali online _mali_profiling_get_counters symbol @ %p\n", _mali_profiling_get_counters_function_pointer); - counter_prev[COUNTER_L2_C0] = 0; - counter_prev[COUNTER_L2_C1] = 0; - } - else{ - pr_debug("gator WARNING: mali _mali_profiling_get_counters symbol not defined"); - } - -} - -static void mali_counter_deinitialize(void) -{ - void (*set_hw_event)(unsigned int, unsigned int); - void (*set_fb_event)(unsigned int, unsigned int); - - set_hw_event = symbol_get(_mali_profiling_set_event); - - if (set_hw_event) { - int i; - - pr_debug("gator: mali offline _mali_profiling_set_event symbol @ %p\n",set_hw_event); - for (i = FIRST_HW_COUNTER; i <= LAST_HW_COUNTER; i++) { - set_hw_event(i, 0xFFFFFFFF); - } - - symbol_put(_mali_profiling_set_event); - } else { - printk("gator: mali offline _mali_profiling_set_event symbol not found\n"); - } - - set_fb_event = symbol_get(_mali_osk_fb_control_set); - - if (set_fb_event) { - pr_debug("gator: mali offline _mali_osk_fb_control_set symbol @ %p\n", set_fb_event); - - set_fb_event(0,0); - - symbol_put(_mali_osk_fb_control_set); - } else { - printk("gator: mali offline _mali_osk_fb_control_set symbol not found\n"); - } - - if (_mali_profiling_get_counters_function_pointer){ - symbol_put(_mali_profiling_get_counters); - } - -} - -static int gator_events_mali_start(void) { - // register tracepoints - if (GATOR_REGISTER_TRACE(mali_hw_counter)) { - printk("gator: mali_hw_counter tracepoint failed to activate\n"); - return -1; - } - - if (GATOR_REGISTER_TRACE(mali_sw_counter)) { - printk("gator: mali_sw_counter tracepoint failed to activate\n"); - return -1; - } - - trace_registered = 1; - - mali_counter_initialize(); - return 0; -} - -static void gator_events_mali_stop(void) { - unsigned int cnt; - - pr_debug("gator: mali stop\n"); - - if (trace_registered) { - GATOR_UNREGISTER_TRACE(mali_hw_counter); - GATOR_UNREGISTER_TRACE(mali_sw_counter); - - pr_debug("gator: mali timeline tracepoint deactivated\n"); - - trace_registered = 0; - } - - for (cnt = FIRST_ACTIVITY_EVENT; cnt < NUMBER_OF_EVENTS; cnt++) { - counter_enabled[cnt] = 0; - counter_event[cnt] = 0; - counter_address[cnt] = NULL; - } - - mali_counter_deinitialize(); -} - -static int gator_events_mali_read(int **buffer) { - int cnt, len = 0; - - if (smp_processor_id()) return 0; - - // Read the L2 C0 and C1 here. - if (counter_enabled[COUNTER_L2_C0] || counter_enabled[COUNTER_L2_C1] ) { - u32 src0 = 0; - u32 val0 = 0; - u32 src1 = 0; - u32 val1 = 0; - - // Poke the driver to get the counter values - if (_mali_profiling_get_counters_function_pointer){ - _mali_profiling_get_counters_function_pointer(&src0, &val0, &src1, &val1); - } - - if (counter_enabled[COUNTER_L2_C0]) - { - // Calculate and save src0's counter val0 - counter_dump[len++] = counter_key[COUNTER_L2_C0]; - counter_dump[len++] = get_difference(val0, counter_prev[COUNTER_L2_C0]); - } - - if (counter_enabled[COUNTER_L2_C1]) - { - // Calculate and save src1's counter val1 - counter_dump[len++] = counter_key[COUNTER_L2_C1]; - counter_dump[len++] = get_difference(val1, counter_prev[COUNTER_L2_C1]); - } - - // Save the previous values for the counters. - counter_prev[COUNTER_L2_C0] = val0; - counter_prev[COUNTER_L2_C1] = val1; - } - - // Process other (non-timeline) counters. - for (cnt = COUNTER_VP_C0; cnt <= LAST_SW_COUNTER; cnt++) { - if (counter_enabled[cnt]) { - u32 value = 0; - - // Determine the current value of the counter. - if( counter_address[cnt] != NULL && 0 ) { // Never true! - value = *counter_address[cnt]; - } else if (counter_data[cnt]!=0) { - value = counter_data[cnt]; - counter_data[cnt] = 0; - } - - // Send the counter value only if it differs from last time. - if (value != counter_prev[cnt]) { - counter_prev[cnt] = value; - counter_dump[len++] = counter_key[cnt]; - counter_dump[len++] = value; - } - } - } - - if (buffer) { - *buffer = (int*) counter_dump; - } - - return len; -} - -static struct gator_interface gator_events_mali_interface = { - .create_files = gator_events_mali_create_files, - .start = gator_events_mali_start, - .stop = gator_events_mali_stop, - .read = gator_events_mali_read, -}; - -int gator_events_mali_init(void) -{ - unsigned int cnt; - u32 id = gator_mali_get_id(); - - switch (id) { - case MALI_T6xx: - mali_name = "Mali-T6xx"; - break; - case MALI_400: - mali_name = "Mali-400"; - break; - case MALI_300: - mali_name = "Mali-300"; - break; - case MALI_200: - mali_name = "Mali-200"; - break; - default: - printk("Unknown Mali ID (%d)\n", id); - return -1; - } - - pr_debug("gator: mali init\n"); - - for (cnt = FIRST_ACTIVITY_EVENT; cnt < NUMBER_OF_EVENTS; cnt++) { - counter_enabled[cnt] = 0; - counter_event[cnt] = 0; - counter_key[cnt] = gator_events_get_key(); - counter_address[cnt] = NULL; - counter_data[cnt] = 0; - } - - trace_registered = 0; - - return gator_events_install(&gator_events_mali_interface); -} -gator_events_init(gator_events_mali_init); |