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pseries: Move sPAPR RTC code into its own file 

At the moment the RTAS (firmware/hypervisor) time of day functions are
implemented in spapr_rtas.c along with a bunch of other things.  Since
we're going to be expanding these a bit, move the RTAS RTC related code
out into new file spapr_rtc.c.  Also add its own initialization function,
spapr_rtc_init() called from the main machine init routine.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
David Gibson 2015-02-06 14:55:47 +11:00 committed by Alexander Graf
parent 87774a4a42
commit 12f421745c
5 changed files with 88 additions and 50 deletions
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2
hw/ppc/Makefile.objs
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@ -3,7 +3,7 @@ obj-y += ppc.o ppc_booke.o
# IBM pSeries (sPAPR)
obj-$(CONFIG_PSERIES) += spapr.o spapr_vio.o spapr_events.o
obj-$(CONFIG_PSERIES) += spapr_hcall.o spapr_iommu.o spapr_rtas.o
obj-$(CONFIG_PSERIES) += spapr_pci.o
obj-$(CONFIG_PSERIES) += spapr_pci.o spapr_rtc.o
ifeq ($(CONFIG_PCI)$(CONFIG_PSERIES)$(CONFIG_LINUX), yyy)
obj-y += spapr_pci_vfio.o
endif

3
hw/ppc/spapr.c
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@ -1491,6 +1491,9 @@ static void ppc_spapr_init(MachineState *machine)
/* Set up EPOW events infrastructure */
spapr_events_init(spapr);
/* Set up the RTC RTAS interfaces */
spapr_rtc_init();
/* Set up VIO bus */
spapr->vio_bus = spapr_vio_bus_init();

49
hw/ppc/spapr_rtas.c
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@ -52,51 +52,6 @@ static void rtas_display_character(PowerPCCPU *cpu, sPAPREnvironment *spapr,
}
}
static void rtas_get_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
struct tm tm;
if (nret != 8) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
qemu_get_timedate(&tm, spapr->rtc_offset);
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
rtas_st(rets, 1, tm.tm_year + 1900);
rtas_st(rets, 2, tm.tm_mon + 1);
rtas_st(rets, 3, tm.tm_mday);
rtas_st(rets, 4, tm.tm_hour);
rtas_st(rets, 5, tm.tm_min);
rtas_st(rets, 6, tm.tm_sec);
rtas_st(rets, 7, 0); /* we don't do nanoseconds */
}
static void rtas_set_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
struct tm tm;
tm.tm_year = rtas_ld(args, 0) - 1900;
tm.tm_mon = rtas_ld(args, 1) - 1;
tm.tm_mday = rtas_ld(args, 2);
tm.tm_hour = rtas_ld(args, 3);
tm.tm_min = rtas_ld(args, 4);
tm.tm_sec = rtas_ld(args, 5);
/* Just generate a monitor event for the change */
qapi_event_send_rtc_change(qemu_timedate_diff(&tm), &error_abort);
spapr->rtc_offset = qemu_timedate_diff(&tm);
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
static void rtas_power_off(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs, target_ulong args,
uint32_t nret, target_ulong rets)
@ -400,10 +355,6 @@ static void core_rtas_register_types(void)
{
spapr_rtas_register(RTAS_DISPLAY_CHARACTER, "display-character",
rtas_display_character);
spapr_rtas_register(RTAS_GET_TIME_OF_DAY, "get-time-of-day",
rtas_get_time_of_day);
spapr_rtas_register(RTAS_SET_TIME_OF_DAY, "set-time-of-day",
rtas_set_time_of_day);
spapr_rtas_register(RTAS_POWER_OFF, "power-off", rtas_power_off);
spapr_rtas_register(RTAS_SYSTEM_REBOOT, "system-reboot",
rtas_system_reboot);

83
hw/ppc/spapr_rtc.c Normal file
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@ -0,0 +1,83 @@
/*
* QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
*
* RTAS Real Time Clock
*
* Copyright (c) 2010-2011 David Gibson, IBM Corporation.
* Copyright 2014 David Gibson, Red Hat.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include "cpu.h"
#include "hw/ppc/spapr.h"
#include "qapi-event.h"
static void rtas_get_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
struct tm tm;
if (nret != 8) {
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
return;
}
qemu_get_timedate(&tm, spapr->rtc_offset);
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
rtas_st(rets, 1, tm.tm_year + 1900);
rtas_st(rets, 2, tm.tm_mon + 1);
rtas_st(rets, 3, tm.tm_mday);
rtas_st(rets, 4, tm.tm_hour);
rtas_st(rets, 5, tm.tm_min);
rtas_st(rets, 6, tm.tm_sec);
rtas_st(rets, 7, 0); /* we don't do nanoseconds */
}
static void rtas_set_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token, uint32_t nargs,
target_ulong args,
uint32_t nret, target_ulong rets)
{
struct tm tm;
tm.tm_year = rtas_ld(args, 0) - 1900;
tm.tm_mon = rtas_ld(args, 1) - 1;
tm.tm_mday = rtas_ld(args, 2);
tm.tm_hour = rtas_ld(args, 3);
tm.tm_min = rtas_ld(args, 4);
tm.tm_sec = rtas_ld(args, 5);
/* Just generate a monitor event for the change */
qapi_event_send_rtc_change(qemu_timedate_diff(&tm), &error_abort);
spapr->rtc_offset = qemu_timedate_diff(&tm);
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
void spapr_rtc_init(void)
{
spapr_rtas_register(RTAS_GET_TIME_OF_DAY, "get-time-of-day",
rtas_get_time_of_day);
spapr_rtas_register(RTAS_SET_TIME_OF_DAY, "set-time-of-day",
rtas_set_time_of_day);
}

1
include/hw/ppc/spapr.h
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@ -480,5 +480,6 @@ int spapr_dma_dt(void *fdt, int node_off, const char *propname,
uint32_t liobn, uint64_t window, uint32_t size);
int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
sPAPRTCETable *tcet);
void spapr_rtc_init(void);
#endif /* !defined (__HW_SPAPR_H__) */