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qemu/hw/timer/trace-events
Havard Skinnemoen 85fdd74ff0 hw/timer: Add NPCM7xx Timer device model 
The NPCM730 and NPCM750 SoCs have three timer modules each holding five
timers and some shared registers (e.g. interrupt status).

Each timer runs at 25 MHz divided by a prescaler, and counts down from a
configurable initial value to zero. When zero is reached, the interrupt
flag for the timer is set, and the timer is disabled (one-shot mode) or
reloaded from its initial value (periodic mode).

This implementation is sufficient to boot a Linux kernel configured for
NPCM750. Note that the kernel does not seem to actually turn on the
interrupts.

Reviewed-by: Tyrone Ting <kfting@nuvoton.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
Message-id: 20200911052101.2602693-4-hskinnemoen@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-14 14:24:58 +01:00

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# See docs/devel/tracing.txt for syntax documentation.
# slavio_timer.c
slavio_timer_get_out(uint64_t limit, uint32_t counthigh, uint32_t count) "limit 0x%"PRIx64" count 0x%x0x%08x"
slavio_timer_irq(uint32_t counthigh, uint32_t count) "callback: count 0x%x0x%08x"
slavio_timer_mem_readl_invalid(uint64_t addr) "invalid read address 0x%"PRIx64
slavio_timer_mem_readl(uint64_t addr, uint32_t ret) "read 0x%"PRIx64" = 0x%08x"
slavio_timer_mem_writel(uint64_t addr, uint32_t val) "write 0x%"PRIx64" = 0x%08x"
slavio_timer_mem_writel_limit(unsigned int timer_index, uint64_t count) "processor %d user timer set to 0x%016"PRIx64
slavio_timer_mem_writel_counter_invalid(void) "not user timer"
slavio_timer_mem_writel_status_start(unsigned int timer_index) "processor %d user timer started"
slavio_timer_mem_writel_status_stop(unsigned int timer_index) "processor %d user timer stopped"
slavio_timer_mem_writel_mode_user(unsigned int timer_index) "processor %d changed from counter to user timer"
slavio_timer_mem_writel_mode_counter(unsigned int timer_index) "processor %d changed from user timer to counter"
slavio_timer_mem_writel_mode_invalid(void) "not system timer"
slavio_timer_mem_writel_invalid(uint64_t addr) "invalid write address 0x%"PRIx64
# grlib_gptimer.c
grlib_gptimer_enable(int id, uint32_t count) "timer:%d set count 0x%x and run"
grlib_gptimer_disabled(int id, uint32_t config) "timer:%d Timer disable config 0x%x"
grlib_gptimer_restart(int id, uint32_t reload) "timer:%d reload val: 0x%x"
grlib_gptimer_set_scaler(uint32_t scaler, uint32_t freq) "scaler:0x%x freq:%uHz"
grlib_gptimer_hit(int id) "timer:%d HIT"
grlib_gptimer_readl(int id, uint64_t addr, uint32_t val) "timer:%d addr 0x%"PRIx64" 0x%x"
grlib_gptimer_writel(int id, uint64_t addr, uint32_t val) "timer:%d addr 0x%"PRIx64" 0x%x"
# lm32_timer.c
lm32_timer_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
lm32_timer_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
lm32_timer_hit(void) "timer hit"
lm32_timer_irq_state(int level) "irq state %d"
# milkymist-sysctl.c
milkymist_sysctl_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
milkymist_sysctl_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
milkymist_sysctl_icap_write(uint32_t value) "value 0x%08x"
milkymist_sysctl_start_timer0(void) "Start timer0"
milkymist_sysctl_stop_timer0(void) "Stop timer0"
milkymist_sysctl_start_timer1(void) "Start timer1"
milkymist_sysctl_stop_timer1(void) "Stop timer1"
milkymist_sysctl_pulse_irq_timer0(void) "Pulse IRQ Timer0"
milkymist_sysctl_pulse_irq_timer1(void) "Pulse IRQ Timer1"
# aspeed_timer.c
aspeed_timer_ctrl_enable(uint8_t i, bool enable) "Timer %" PRIu8 ": %d"
aspeed_timer_ctrl_external_clock(uint8_t i, bool enable) "Timer %" PRIu8 ": %d"
aspeed_timer_ctrl_overflow_interrupt(uint8_t i, bool enable) "Timer %" PRIu8 ": %d"
aspeed_timer_ctrl_pulse_enable(uint8_t i, bool enable) "Timer %" PRIu8 ": %d"
aspeed_timer_set_ctrl2(uint32_t value) "Value: 0x%" PRIx32
aspeed_timer_set_value(int timer, int reg, uint32_t value) "Timer %d register %d: 0x%" PRIx32
aspeed_timer_read(uint64_t offset, unsigned size, uint64_t value) "From 0x%" PRIx64 ": of size %u: 0x%" PRIx64
# armv7m_systick.c
systick_reload(void) "systick reload"
systick_timer_tick(void) "systick reload"
systick_read(uint64_t addr, uint32_t value, unsigned size) "systick read addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
systick_write(uint64_t addr, uint32_t value, unsigned size) "systick write addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
# cmsdk-apb-timer.c
cmsdk_apb_timer_read(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB timer read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
cmsdk_apb_timer_write(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB timer write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
cmsdk_apb_timer_reset(void) "CMSDK APB timer: reset"
# cmsdk-apb-dualtimer.c
cmsdk_apb_dualtimer_read(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB dualtimer read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
cmsdk_apb_dualtimer_write(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB dualtimer write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u"
cmsdk_apb_dualtimer_reset(void) "CMSDK APB dualtimer: reset"
# npcm7xx_timer.c
npcm7xx_timer_read(const char *id, uint64_t offset, uint64_t value) " %s offset: 0x%04" PRIx64 " value 0x%08" PRIx64
npcm7xx_timer_write(const char *id, uint64_t offset, uint64_t value) "%s offset: 0x%04" PRIx64 " value 0x%08" PRIx64
npcm7xx_timer_irq(const char *id, int timer, int state) "%s timer %d state %d"
# nrf51_timer.c
nrf51_timer_read(uint8_t timer_id, uint64_t addr, uint32_t value, unsigned size) "timer %u read addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
nrf51_timer_write(uint8_t timer_id, uint64_t addr, uint32_t value, unsigned size) "timer %u write addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
nrf51_timer_set_count(uint8_t timer_id, uint8_t counter_id, uint32_t value) "timer %u counter %u count 0x%" PRIx32
# bcm2835_systmr.c
bcm2835_systmr_irq(bool enable) "timer irq state %u"
bcm2835_systmr_read(uint64_t offset, uint64_t data) "timer read: offset 0x%" PRIx64 " data 0x%" PRIx64
bcm2835_systmr_write(uint64_t offset, uint64_t data) "timer write: offset 0x%" PRIx64 " data 0x%" PRIx64
# avr_timer16.c
avr_timer16_read(uint8_t addr, uint8_t value) "timer16 read addr:%u value:%u"
avr_timer16_read_ifr(uint8_t value) "timer16 read addr:ifr value:%u"
avr_timer16_read_imsk(uint8_t value) "timer16 read addr:imsk value:%u"
avr_timer16_write(uint8_t addr, uint8_t value) "timer16 write addr:%u value:%u"
avr_timer16_write_imsk(uint8_t value) "timer16 write addr:imsk value:%u"
avr_timer16_interrupt_count(uint8_t cnt) "count: %u"
avr_timer16_interrupt_overflow(const char *reason) "overflow: %s"
avr_timer16_next_alarm(uint64_t delay_ns) "next alarm: %" PRIu64 " ns from now"
avr_timer16_clksrc_update(uint64_t freq_hz, uint64_t period_ns, uint64_t delay_s) "timer frequency: %" PRIu64 " Hz, period: %" PRIu64 " ns (%" PRId64 " us)"
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