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hw/gpio/pl061: Add tracepoints for register read and write

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Add tracepoints for reads and writes to the PL061 registers. This requires
restructuring pl061_read() to only return after the tracepoint, rather
than having lots of early-returns.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Peter Maydell 2021-07-02 11:40:11 +01:00
parent e24a9f6a59
commit 74d359b52d
2 changed files with 50 additions and 22 deletions
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2
hw/gpio/trace-events
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@ -18,6 +18,8 @@ pl061_update(const char *id, uint32_t dir, uint32_t data) "%s GPIODIR 0x%x GPIOD
pl061_set_output(const char *id, int gpio, int level) "%s setting output %d to %d"
pl061_input_change(const char *id, int gpio, int level) "%s input %d changed to %d"
pl061_update_istate(const char *id, uint32_t istate, uint32_t im, int level) "%s GPIORIS 0x%x GPIOIE 0x%x interrupt level %d"
pl061_read(const char *id, uint64_t offset, uint64_t r) "%s offset 0x%" PRIx64 " value 0x%" PRIx64
pl061_write(const char *id, uint64_t offset, uint64_t value) "%s offset 0x%" PRIx64 " value 0x%" PRIx64
# sifive_gpio.c
sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64