qemu-patch-raspberry4/hw/mips
Laurent Vivier 683dca6bd5 mips: remove muldiv64()
Originally, timers were ticks based, and it made sense to
add ticks to current time to know when to trigger an alarm.

But since commit:

7447545 change all other clock references to use nanosecond resolution accessors

All timers use nanoseconds and we need to convert ticks to nanoseconds, by
doing something like:

    y = muldiv64(x, get_ticks_per_sec(), TIMER_FREQ)

where x is the number of device ticks and y the number of system ticks.

y is used as nanoseconds in timer functions,
it works because 1 tick is 1 nanosecond.
(get_ticks_per_sec() is 10^9)

But as MIPS timer frequency is 100 MHz, we can also do:

    y = x * 10; /* 100 MHz period is 10 ns */

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
2015-09-25 14:54:04 +02:00
..
addr.c hw/mips: Add API to convert KVM guest KSEG0 <-> GPA 2014-06-18 16:58:10 +02:00
cputimer.c mips: remove muldiv64() 2015-09-25 14:54:04 +02:00
gt64xxx_pci.c gt64xxx: remove isa_mem_base usage 2015-02-13 14:09:27 +00:00
Makefile.objs mips jazz: compile only in 64 bit 2015-06-11 10:13:29 +01:00
mips_fulong2e.c Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00
mips_int.c hw/mips: In KVM mode, inject IRQ2 (I/O) interrupts via ioctls 2014-06-18 16:59:12 +02:00
mips_jazz.c Revert use of DEFINE_MACHINE() for registrations of multiple machines 2015-09-19 16:40:27 +02:00
mips_malta.c Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00
mips_mipssim.c Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00
mips_r4k.c Use DEFINE_MACHINE() to register all machines 2015-09-19 16:40:15 +02:00