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Add RTC support for the LV1 clock on the PS3. The hypervisor won't let us

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set it, but it's better than nothing.
This commit is contained in:
Nathan Whitehorn 2011-05-24 02:19:45 +00:00
parent f7a10dcfe0
commit 5c59afe04b
1 changed files with 33 additions and 1 deletions
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34
sys/powerpc/ps3/ps3bus.c
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@ -31,6 +31,7 @@
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/bus.h>
#include <sys/clock.h>
#include <sys/cpu.h>
#include <sys/resource.h>
#include <sys/rman.h>
@ -46,6 +47,7 @@
#include "ps3bus.h"
#include "ps3-hvcall.h"
#include "iommu_if.h"
#include "clock_if.h"
static void ps3bus_identify(driver_t *, device_t);
static int ps3bus_probe(device_t);
@ -63,6 +65,8 @@ static int ps3_iommu_map(device_t dev, bus_dma_segment_t *segs, int *nsegs,
bus_size_t boundary, void *cookie);
static int ps3_iommu_unmap(device_t dev, bus_dma_segment_t *segs,
int nsegs, void *cookie);
static int ps3_gettime(device_t dev, struct timespec *ts);
static int ps3_settime(device_t dev, struct timespec *ts);
struct ps3bus_devinfo {
int bus;
@ -106,6 +110,10 @@ static device_method_t ps3bus_methods[] = {
DEVMETHOD(iommu_map, ps3_iommu_map),
DEVMETHOD(iommu_unmap, ps3_iommu_unmap),
/* Clock interface */
DEVMETHOD(clock_gettime, ps3_gettime),
DEVMETHOD(clock_settime, ps3_settime),
{ 0, 0 }
};
@ -312,6 +320,8 @@ ps3bus_attach(device_t self)
device_set_ivars(cdev, dinfo);
}
}
clock_register(self, 1000);
return (bus_generic_attach(self));
}
@ -551,7 +561,6 @@ ps3_iommu_map(device_t dev, bus_dma_segment_t *segs, int *nsegs,
return (0);
}
static int
ps3_iommu_unmap(device_t dev, bus_dma_segment_t *segs, int nsegs, void *cookie)
{
@ -559,3 +568,26 @@ ps3_iommu_unmap(device_t dev, bus_dma_segment_t *segs, int nsegs, void *cookie)
return (0);
}
#define Y2K 946684800
static int
ps3_gettime(device_t dev, struct timespec *ts)
{
uint64_t rtc, tb;
int result;
result = lv1_get_rtc(&rtc, &tb);
if (result)
return (result);
ts->tv_sec = rtc + Y2K;
ts->tv_nsec = 0;
return (0);
}
static int
ps3_settime(device_t dev, struct timespec *ts)
{
return (-1);
}