fhc.c revision 193974072f41a843678abf5f61979c748687e66b
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/ddi_impldefs.h>
#include <sys/obpdefs.h>
#include <sys/promif.h>
#include <sys/cmn_err.h>
#include <sys/errno.h>
#include <sys/kmem.h>
#include <sys/vmem.h>
#include <sys/debug.h>
#include <sys/sysmacros.h>
#include <sys/intreg.h>
#include <sys/autoconf.h>
#include <sys/modctl.h>
#include <sys/spl.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/machsystm.h>
#include <sys/cpu.h>
#include <sys/cpuvar.h>
#include <sys/x_call.h> /* xt_one() */
#include <sys/membar.h>
#include <sys/vm.h>
#include <vm/seg_kmem.h>
#include <vm/hat_sfmmu.h>
#include <sys/promimpl.h>
#include <sys/prom_plat.h>
#include <sys/cpu_module.h> /* flush_instr_mem() */
#include <sys/procset.h>
#include <sys/fhc.h>
#include <sys/ac.h>
#include <sys/environ.h>
#include <sys/jtag.h>
#include <sys/nexusdebug.h>
#include <sys/ac.h>
#include <sys/ddi_subrdefs.h>
#include <sys/eeprom.h>
#include <sys/sdt.h>
#include <sys/ddi_implfuncs.h>
#include <sys/ontrap.h>
#ifndef TRUE
#define TRUE (1)
#endif
#ifndef FALSE
#define FALSE (0)
#endif
/*
* Function to register and deregister callbacks, for sunfire only.
*/
extern void plat_register_tod_fault(void (*func)(enum tod_fault_type));
/*
* This table represents the FHC interrupt priorities. They range from
* 1-15, and have been modeled after the sun4d interrupts. The mondo
* number anded with 0x7 is used to index into this table. This was
* done to save table space.
*/
static int fhc_int_priorities[] = {
PIL_15, /* System interrupt priority */
PIL_12, /* zs interrupt priority */
PIL_15, /* TOD interrupt priority */
PIL_15 /* Fan Fail priority */
};
static void fhc_tod_fault(enum tod_fault_type tod_bad);
/*
* The dont_calibrate variable is meant to be set to one in /etc/system
* or by boot -h so that the calibration tables are not used. This
* is useful for checking thermistors whose output seems to be incorrect.
*/
static int dont_calibrate = 0;
/* Only one processor should powerdown the system. */
static int powerdown_started = 0;
/* Let user disable overtemp powerdown. */
int enable_overtemp_powerdown = 1;
/*
* The following tables correspond to the degress Celcius for each count
* value possible from the 8-bit A/C convertors on each type of system
* board for the UltraSPARC Server systems. To access a temperature,
* just index into the correct table using the count from the A/D convertor
* register, and that is the correct temperature in degress Celsius. These
* values can be negative.
*/
static short cpu_table[] = {
-16, -14, -12, -10, -8, -6, -4, -2, /* 0-7 */
1, 4, 6, 8, 10, 12, 13, 15, /* 8-15 */
16, 18, 19, 20, 22, 23, 24, 25, /* 16-23 */
26, 27, 28, 29, 30, 31, 32, 33, /* 24-31 */
34, 35, 35, 36, 37, 38, 39, 39, /* 32-39 */
40, 41, 41, 42, 43, 44, 44, 45, /* 40-47 */
46, 46, 47, 47, 48, 49, 49, 50, /* 48-55 */
51, 51, 52, 53, 53, 54, 54, 55, /* 56-63 */
55, 56, 56, 57, 57, 58, 58, 59, /* 64-71 */
60, 60, 61, 61, 62, 62, 63, 63, /* 72-79 */
64, 64, 65, 65, 66, 66, 67, 67, /* 80-87 */
68, 68, 69, 69, 70, 70, 71, 71, /* 88-95 */
72, 72, 73, 73, 74, 74, 75, 75, /* 96-103 */
76, 76, 77, 77, 78, 78, 79, 79, /* 104-111 */
80, 80, 81, 81, 82, 82, 83, 83, /* 112-119 */
84, 84, 85, 85, 86, 86, 87, 87, /* 120-127 */
88, 88, 89, 89, 90, 90, 91, 91, /* 128-135 */
92, 92, 93, 93, 94, 94, 95, 95, /* 136-143 */
96, 96, 97, 98, 98, 99, 99, 100, /* 144-151 */
100, 101, 101, 102, 103, 103, 104, 104, /* 152-159 */
105, 106, 106, 107, 107, 108, 109, 109, /* 160-167 */
110, /* 168 */
};
#define CPU_MX_CNT (sizeof (cpu_table)/sizeof (short))
static short cpu2_table[] = {
-17, -16, -15, -14, -13, -12, -11, -10, /* 0-7 */
-9, -8, -7, -6, -5, -4, -3, -2, /* 8-15 */
-1, 0, 1, 2, 3, 4, 5, 6, /* 16-23 */
7, 8, 9, 10, 11, 12, 13, 13, /* 24-31 */
14, 15, 16, 16, 17, 18, 18, 19, /* 32-39 */
20, 20, 21, 22, 22, 23, 24, 24, /* 40-47 */
25, 25, 26, 26, 27, 27, 28, 28, /* 48-55 */
29, 30, 30, 31, 31, 32, 32, 33, /* 56-63 */
33, 34, 34, 35, 35, 36, 36, 37, /* 64-71 */
37, 37, 38, 38, 39, 39, 40, 40, /* 72-79 */
41, 41, 42, 42, 43, 43, 43, 44, /* 80-87 */
44, 45, 45, 46, 46, 46, 47, 47, /* 88-95 */
48, 48, 49, 49, 50, 50, 50, 51, /* 96-103 */
51, 52, 52, 53, 53, 53, 54, 54, /* 104-111 */
55, 55, 56, 56, 56, 57, 57, 58, /* 112-119 */
58, 59, 59, 59, 60, 60, 61, 61, /* 120-127 */
62, 62, 63, 63, 63, 64, 64, 65, /* 128-135 */
65, 66, 66, 67, 67, 68, 68, 68, /* 136-143 */
69, 69, 70, 70, 71, 71, 72, 72, /* 144-151 */
73, 73, 74, 74, 75, 75, 76, 76, /* 152-159 */
77, 77, 78, 78, 79, 79, 80, 80, /* 160-167 */
81, 81, 82, 83, 83, 84, 84, 85, /* 168-175 */
85, 86, 87, 87, 88, 88, 89, 90, /* 176-183 */
90, 91, 92, 92, 93, 94, 94, 95, /* 184-191 */
96, 96, 97, 98, 99, 99, 100, 101, /* 192-199 */
102, 103, 103, 104, 105, 106, 107, 108, /* 200-207 */
109, 110, /* 208-209 */
};
#define CPU2_MX_CNT (sizeof (cpu2_table)/sizeof (short))
static short io_table[] = {
0, 0, 0, 0, 0, 0, 0, 0, /* 0-7 */
0, 0, 0, 0, 0, 0, 0, 0, /* 8-15 */
0, 0, 0, 0, 0, 0, 0, 0, /* 16-23 */
0, 0, 0, 0, 0, 0, 0, 0, /* 24-31 */
0, 0, 0, 0, 0, 0, 0, 0, /* 32-39 */
0, 3, 7, 10, 13, 15, 17, 19, /* 40-47 */
21, 23, 25, 27, 28, 30, 31, 32, /* 48-55 */
34, 35, 36, 37, 38, 39, 41, 42, /* 56-63 */
43, 44, 45, 46, 46, 47, 48, 49, /* 64-71 */
50, 51, 52, 53, 53, 54, 55, 56, /* 72-79 */
57, 57, 58, 59, 60, 60, 61, 62, /* 80-87 */
62, 63, 64, 64, 65, 66, 66, 67, /* 88-95 */
68, 68, 69, 70, 70, 71, 72, 72, /* 96-103 */
73, 73, 74, 75, 75, 76, 77, 77, /* 104-111 */
78, 78, 79, 80, 80, 81, 81, 82, /* 112-119 */
};
#define IO_MN_CNT 40
#define IO_MX_CNT (sizeof (io_table)/sizeof (short))
static short clock_table[] = {
0, 0, 0, 0, 0, 0, 0, 0, /* 0-7 */
0, 0, 0, 0, 1, 2, 4, 5, /* 8-15 */
7, 8, 10, 11, 12, 13, 14, 15, /* 16-23 */
17, 18, 19, 20, 21, 22, 23, 24, /* 24-31 */
24, 25, 26, 27, 28, 29, 29, 30, /* 32-39 */
31, 32, 32, 33, 34, 35, 35, 36, /* 40-47 */
37, 38, 38, 39, 40, 40, 41, 42, /* 48-55 */
42, 43, 44, 44, 45, 46, 46, 47, /* 56-63 */
48, 48, 49, 50, 50, 51, 52, 52, /* 64-71 */
53, 54, 54, 55, 56, 57, 57, 58, /* 72-79 */
59, 59, 60, 60, 61, 62, 63, 63, /* 80-87 */
64, 65, 65, 66, 67, 68, 68, 69, /* 88-95 */
70, 70, 71, 72, 73, 74, 74, 75, /* 96-103 */
76, 77, 78, 78, 79, 80, 81, 82, /* 104-111 */
};
#define CLK_MN_CNT 11
#define CLK_MX_CNT (sizeof (clock_table)/sizeof (short))
/*
* System temperature limits.
*
* The following variables are the warning and danger limits for the
* different types of system boards. The limits are different because
* the various boards reach different nominal temperatures because
* of the different components that they contain.
*
* The warning limit is the temperature at which the user is warned.
* The danger limit is the temperature at which the system is shutdown.
* In the case of CPU/Memory system boards, the system will attempt
* to offline and power down processors on a board in an attempt to
* bring the board back into the nominal temperature range before
* shutting down the system.
*
* These values can be tuned via /etc/system or boot -h.
*/
short cpu_warn_temp = 73; /* CPU/Memory Warning Temperature */
short cpu_danger_temp = 83; /* CPU/Memory Danger Temperature */
short io_warn_temp = 60; /* IO Board Warning Temperature */
short io_danger_temp = 68; /* IO Board Danger Temperature */
short clk_warn_temp = 60; /* Clock Board Warning Temperature */
short clk_danger_temp = 68; /* Clock Board Danger Temperature */
short dft_warn_temp = 60; /* default warning temp value */
short dft_danger_temp = 68; /* default danger temp value */
short cpu_warn_temp_4x = 60; /* CPU/Memory warning temp for 400 MHZ */
short cpu_danger_temp_4x = 68; /* CPU/Memory danger temp for 400 MHZ */
/*
* This variable tells us if we are in a heat chamber. It is set
* early on in boot, after we check the OBP 'mfg-mode' property in
* the options node.
*/
static int temperature_chamber = -1;
/*
* The fhc memloc structure is protected under the bdlist lock
*/
static struct fhc_memloc *fhc_base_memloc = NULL;
/*
* Driver global fault list mutex and list head pointer. The list is
* protected by the mutex and contains a record of all known faults.
* Faults can be inherited from the PROM or detected by the kernel.
*/
static kmutex_t ftlist_mutex;
static struct ft_link_list *ft_list = NULL;
static int ft_nfaults = 0;
/*
* Table of all known fault strings. This table is indexed by the fault
* type. Do not change the ordering of the table without redefining the
* fault type enum list on fhc.h.
*/
char *ft_str_table[] = {
"Core Power Supply", /* FT_CORE_PS */
"Overtemp", /* FT_OVERTEMP */
"AC Power", /* FT_AC_PWR */
"Peripheral Power Supply", /* FT_PPS */
"System 3.3 Volt Power", /* FT_CLK_33 */
"System 5.0 Volt Power", /* FT_CLK_50 */
"Peripheral 5.0 Volt Power", /* FT_V5_P */
"Peripheral 12 Volt Power", /* FT_V12_P */
"Auxiliary 5.0 Volt Power", /* FT_V5_AUX */
"Peripheral 5.0 Volt Precharge", /* FT_V5_P_PCH */
"Peripheral 12 Volt Precharge", /* FT_V12_P_PCH */
"System 3.3 Volt Precharge", /* FT_V3_PCH */
"System 5.0 Volt Precharge", /* FT_V5_PCH */
"Peripheral Power Supply Fans", /* FT_PPS_FAN */
"Rack Exhaust Fan", /* FT_RACK_EXH */
"Disk Drive Fan", /* FT_DSK_FAN */
"AC Box Fan", /* FT_AC_FAN */
"Key Switch Fan", /* FT_KEYSW_FAN */
"Minimum Power", /* FT_INSUFFICIENT_POWER */
"PROM detected", /* FT_PROM */
"Hot Plug Support System", /* FT_HOT_PLUG */
"TOD" /* FT_TODFAULT */
};
static int ft_max_index = (sizeof (ft_str_table) / sizeof (char *));
/*
* Function prototypes
*/
static int fhc_ctlops(dev_info_t *, dev_info_t *, ddi_ctl_enum_t,
void *, void *);
static int fhc_intr_ops(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_op_t intr_op, ddi_intr_handle_impl_t *hdlp, void *result);
static int fhc_add_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp);
static void fhc_remove_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp);
static int fhc_attach(dev_info_t *devi, ddi_attach_cmd_t cmd);
static int fhc_detach(dev_info_t *devi, ddi_detach_cmd_t cmd);
static int fhc_init(struct fhc_soft_state *softsp);
static void fhc_unmap_regs(struct fhc_soft_state *softsp);
static enum board_type fhc_board_type(struct fhc_soft_state *, int);
static void
fhc_xlate_intrs(ddi_intr_handle_impl_t *hdlp, uint32_t ign);
static int
fhc_ctlops_peekpoke(ddi_ctl_enum_t, peekpoke_ctlops_t *, void *result);
static void fhc_add_kstats(struct fhc_soft_state *);
static int fhc_kstat_update(kstat_t *, int);
static int check_for_chamber(void);
static int ft_ks_snapshot(struct kstat *, void *, int);
static int ft_ks_update(struct kstat *, int);
static int check_central(int board);
/*
* board type and A/D convertor output passed in and real temperature
* is returned.
*/
static short calibrate_temp(enum board_type, uchar_t, uint_t);
static enum temp_state get_temp_state(enum board_type, short, int);
/* Routine to determine if there are CPUs on this board. */
static int cpu_on_board(int);
static void build_bd_display_str(char *, enum board_type, int);
/* Interrupt distribution callback function. */
static void fhc_intrdist(void *);
/* CPU power control */
int fhc_cpu_poweroff(struct cpu *); /* cpu_poweroff()->platform */
int fhc_cpu_poweron(struct cpu *); /* cpu_poweron()->platform */
extern struct cpu_node cpunodes[];
extern void halt(char *);
/*
* Configuration data structures
*/
static struct bus_ops fhc_bus_ops = {
BUSO_REV,
ddi_bus_map, /* map */
0, /* get_intrspec */
0, /* add_intrspec */
0, /* remove_intrspec */
i_ddi_map_fault, /* map_fault */
ddi_no_dma_map, /* dma_map */
ddi_no_dma_allochdl,
ddi_no_dma_freehdl,
ddi_no_dma_bindhdl,
ddi_no_dma_unbindhdl,
ddi_no_dma_flush,
ddi_no_dma_win,
ddi_dma_mctl, /* dma_ctl */
fhc_ctlops, /* ctl */
ddi_bus_prop_op, /* prop_op */
0, /* (*bus_get_eventcookie)(); */
0, /* (*bus_add_eventcall)(); */
0, /* (*bus_remove_eventcall)(); */
0, /* (*bus_post_event)(); */
0, /* (*bus_intr_control)(); */
0, /* (*bus_config)(); */
0, /* (*bus_unconfig)(); */
0, /* (*bus_fm_init)(); */
0, /* (*bus_fm_fini)(); */
0, /* (*bus_fm_access_enter)(); */
0, /* (*bus_fm_access_exit)(); */
0, /* (*bus_power)(); */
fhc_intr_ops /* (*bus_intr_op)(); */
};
static struct cb_ops fhc_cb_ops = {
nulldev, /* open */
nulldev, /* close */
nulldev, /* strategy */
nulldev, /* print */
nulldev, /* dump */
nulldev, /* read */
nulldev, /* write */
nulldev, /* ioctl */
nodev, /* devmap */
nodev, /* mmap */
nodev, /* segmap */
nochpoll, /* poll */
ddi_prop_op, /* cb_prop_op */
0, /* streamtab */
D_MP|D_NEW|D_HOTPLUG, /* Driver compatibility flag */
CB_REV, /* rev */
nodev, /* cb_aread */
nodev /* cb_awrite */
};
static struct dev_ops fhc_ops = {
DEVO_REV, /* rev */
0, /* refcnt */
ddi_no_info, /* getinfo */
nulldev, /* identify */
nulldev, /* probe */
fhc_attach, /* attach */
fhc_detach, /* detach */
nulldev, /* reset */
&fhc_cb_ops, /* cb_ops */
&fhc_bus_ops, /* bus_ops */
nulldev, /* power */
ddi_quiesce_not_needed, /* quiesce */
};
/*
* Driver globals
* TODO - We need to investigate what locking needs to be done here.
*/
void *fhcp; /* fhc soft state hook */
extern struct mod_ops mod_driverops;
static struct modldrv modldrv = {
&mod_driverops, /* Type of module. This one is a driver */
"FHC Nexus", /* Name of module. */
&fhc_ops, /* driver ops */
};
static struct modlinkage modlinkage = {
MODREV_1, /* rev */
(void *)&modldrv,
NULL
};
/*
* These are the module initialization routines.
*/
static caddr_t shutdown_va;
int
_init(void)
{
int error;
if ((error = ddi_soft_state_init(&fhcp,
sizeof (struct fhc_soft_state), 1)) != 0)
return (error);
fhc_bdlist_init();
mutex_init(&ftlist_mutex, NULL, MUTEX_DEFAULT, NULL);
shutdown_va = vmem_alloc(heap_arena, PAGESIZE, VM_SLEEP);
ASSERT(shutdown_va != NULL);
plat_register_tod_fault(fhc_tod_fault);
return (mod_install(&modlinkage));
}
int
_fini(void)
{
int error;
if ((error = mod_remove(&modlinkage)) != 0)
return (error);
plat_register_tod_fault(NULL);
mutex_destroy(&ftlist_mutex);
fhc_bdlist_fini();
ddi_soft_state_fini(&fhcp);
return (0);
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
/*
* Reset the interrupt mapping registers.
* This function resets the values during DDI_RESUME.
*
* NOTE: This function will not work for a full CPR cycle
* and is currently designed to handle the RESUME after a connect.
*
* Note about the PROM handling of moving CENTRAL to another board:
* The PROM moves the IGN identity (igr register) from the
* original CENTRAL to the new one. This means that we do not
* duplicate the fhc_attach code that sets it to (board number * 2).
* We rely on only using FHC interrupts from one board only
* (the UART and SYS interrupts) so that the values of the other IGNs
* are irrelevant. The benefit of this approach is that we don't
* have to have to tear down and rebuild the interrupt records
* for UART and SYS. It is also why we don't try to change the
* board number in the fhc instance for the clock board.
*/
static void
fhc_handle_imr(struct fhc_soft_state *softsp)
{
int i;
int cent;
uint_t tmp_reg;
if (softsp->is_central) {
uint_t want_igr, act_igr;
want_igr = softsp->list->sc.board << 1;
act_igr = *softsp->igr & 0x1f;
if (want_igr != act_igr) {
*softsp->igr = want_igr;
tmp_reg = *softsp->igr;
#ifdef lint
tmp_reg = tmp_reg;
#endif
/* We must now re-issue any pending interrupts. */
for (i = 0; i < FHC_MAX_INO; i++) {
if (*(softsp->intr_regs[i].clear_reg) == 3) {
*(softsp->intr_regs[i].clear_reg) =
ISM_IDLE;
tmp_reg =
*(softsp->intr_regs[i].clear_reg);
#ifdef lint
tmp_reg = tmp_reg;
#endif
}
}
cmn_err(CE_NOTE, "central IGN corruption fixed: "
"got %x wanted %x", act_igr, want_igr);
}
return;
}
ASSERT(softsp->list->sc.board == FHC_BSR_TO_BD(*(softsp->bsr)));
cent = check_central(softsp->list->sc.board);
/* Loop through all 4 FHC interrupt mapping registers */
for (i = 0; i < FHC_MAX_INO; i++) {
if (i == FHC_SYS_INO &&
*(softsp->intr_regs[i].clear_reg) == 3) {
cmn_err(CE_NOTE,
"found lost system interrupt, resetting..");
*(softsp->intr_regs[i].clear_reg) = ISM_IDLE;
/*
* ensure atomic write with this read.
*/
tmp_reg = *(softsp->intr_regs[i].clear_reg);
#ifdef lint
tmp_reg = tmp_reg;
#endif
}
/*
* The mapping registers on the board with the "central" bit
* set should not be touched as it has been taken care by POST.
*/
if (cent)
continue;
*(softsp->intr_regs[i].mapping_reg) = 0;
/*
* ensure atomic write with this read.
*/
tmp_reg = *(softsp->intr_regs[i].mapping_reg);
#ifdef lint
tmp_reg = tmp_reg;
#endif
}
}
static int
check_central(int board)
{
uint_t cs_value;
/*
* This is the value of AC configuration and status reg
* in the Local Devices space. We access it as a physical
* address.
*/
cs_value = ldphysio(AC_BCSR(board));
if (cs_value & AC_CENTRAL)
return (TRUE);
else
return (FALSE);
}
static int
fhc_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
{
struct fhc_soft_state *softsp;
int instance;
instance = ddi_get_instance(devi);
switch (cmd) {
case DDI_ATTACH:
break;
case DDI_RESUME:
softsp = ddi_get_soft_state(fhcp, instance);
/* IGR, NOT_BRD_PRES handled by prom */
/* reset interrupt mapping registers */
fhc_handle_imr(softsp);
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
if (ddi_soft_state_zalloc(fhcp, instance) != DDI_SUCCESS)
return (DDI_FAILURE);
softsp = ddi_get_soft_state(fhcp, instance);
/* Set the dip in the soft state */
softsp->dip = devi;
if (fhc_init(softsp) != DDI_SUCCESS)
goto bad;
ddi_report_dev(devi);
return (DDI_SUCCESS);
bad:
ddi_soft_state_free(fhcp, instance);
return (DDI_FAILURE);
}
static int
fhc_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
{
int board;
int instance;
struct fhc_soft_state *softsp;
fhc_bd_t *list = NULL;
/* get the instance of this devi */
instance = ddi_get_instance(devi);
/* get the soft state pointer for this device node */
softsp = ddi_get_soft_state(fhcp, instance);
board = softsp->list->sc.board;
switch (cmd) {
case DDI_SUSPEND:
return (DDI_SUCCESS);
case DDI_DETACH:
/* grab the lock on the board list */
list = fhc_bdlist_lock(board);
if (fhc_bd_detachable(board) &&
!fhc_bd_is_jtag_master(board))
break;
else
fhc_bdlist_unlock();
/* FALLTHROUGH */
default:
return (DDI_FAILURE);
}
/* Remove the interrupt redistribution callback. */
intr_dist_rem(fhc_intrdist, (void *)devi);
/* remove the soft state pointer from the board list */
list->softsp = NULL;
/* clear inherited faults from the PROM. */
clear_fault(list->sc.board, FT_PROM, FT_BOARD);
/* remove the kstat for this board */
kstat_delete(softsp->fhc_ksp);
/* destroy the mutexes in this soft state structure */
mutex_destroy(&softsp->poll_list_lock);
mutex_destroy(&softsp->ctrl_lock);
/* unmap all the register sets */
fhc_unmap_regs(softsp);
/* release the board list lock now */
fhc_bdlist_unlock();
/* free the soft state structure */
ddi_soft_state_free(fhcp, instance);
return (DDI_SUCCESS);
}
static enum board_type
fhc_board_type(struct fhc_soft_state *softsp, int board)
{
int proplen;
char *board_type;
enum board_type type;
if (softsp->is_central)
type = CLOCK_BOARD;
else if (ddi_getlongprop(DDI_DEV_T_ANY, softsp->dip,
DDI_PROP_DONTPASS, "board-type", (caddr_t)&board_type,
&proplen) == DDI_PROP_SUCCESS) {
/* match the board-type string */
if (strcmp(CPU_BD_NAME, board_type) == 0) {
type = CPU_BOARD;
} else if (strcmp(MEM_BD_NAME, board_type) == 0) {
type = MEM_BOARD;
} else if (strcmp(IO_2SBUS_BD_NAME, board_type) == 0) {
type = IO_2SBUS_BOARD;
} else if (strcmp(IO_SBUS_FFB_BD_NAME, board_type) == 0) {
type = IO_SBUS_FFB_BOARD;
} else if (strcmp(IO_2SBUS_SOCPLUS_BD_NAME, board_type) == 0) {
type = IO_2SBUS_SOCPLUS_BOARD;
} else if (strcmp(IO_SBUS_FFB_SOCPLUS_BD_NAME, board_type)
== 0) {
type = IO_SBUS_FFB_SOCPLUS_BOARD;
} else if (strcmp(IO_PCI_BD_NAME, board_type) == 0) {
type = IO_PCI_BOARD;
} else {
type = UNKNOWN_BOARD;
}
kmem_free(board_type, proplen);
} else
type = UNKNOWN_BOARD;
/*
* if the board type is indeterminate, it must be determined.
*/
if (type == UNKNOWN_BOARD) {
/*
* Use the UPA64 bits from the FHC.
* This is not the best solution since we
* cannot fully type the IO boards.
*/
if (cpu_on_board(board))
type = CPU_BOARD;
else if ((*(softsp->bsr) & FHC_UPADATA64A) ||
(*(softsp->bsr) & FHC_UPADATA64B))
type = IO_2SBUS_BOARD;
else
type = MEM_BOARD;
}
return (type);
}
static void
fhc_unmap_regs(struct fhc_soft_state *softsp)
{
dev_info_t *dip = softsp->dip;
if (softsp->id) {
ddi_unmap_regs(dip, 0, (caddr_t *)&softsp->id, 0, 0);
softsp->id = NULL;
}
if (softsp->igr) {
ddi_unmap_regs(dip, 1, (caddr_t *)&softsp->igr, 0, 0);
softsp->igr = NULL;
}
if (softsp->intr_regs[FHC_FANFAIL_INO].mapping_reg) {
ddi_unmap_regs(dip, 2,
(caddr_t *)&softsp->intr_regs[FHC_FANFAIL_INO].mapping_reg,
0, 0);
softsp->intr_regs[FHC_FANFAIL_INO].mapping_reg = NULL;
}
if (softsp->intr_regs[FHC_SYS_INO].mapping_reg) {
ddi_unmap_regs(dip, 3,
(caddr_t *)&softsp->intr_regs[FHC_SYS_INO].mapping_reg,
0, 0);
softsp->intr_regs[FHC_SYS_INO].mapping_reg = NULL;
}
if (softsp->intr_regs[FHC_UART_INO].mapping_reg) {
ddi_unmap_regs(dip, 4,
(caddr_t *)&softsp->intr_regs[FHC_UART_INO].mapping_reg,
0, 0);
softsp->intr_regs[FHC_UART_INO].mapping_reg = NULL;
}
if (softsp->intr_regs[FHC_TOD_INO].mapping_reg) {
ddi_unmap_regs(dip, 5,
(caddr_t *)&softsp->intr_regs[FHC_TOD_INO].mapping_reg,
0, 0);
softsp->intr_regs[FHC_TOD_INO].mapping_reg = NULL;
}
}
static int
fhc_init(struct fhc_soft_state *softsp)
{
int i;
uint_t tmp_reg;
int board;
/*
* Map in the FHC registers. Specifying length and offset of
* zero maps in the entire OBP register set.
*/
/* map in register set 0 */
if (ddi_map_regs(softsp->dip, 0,
(caddr_t *)&softsp->id, 0, 0)) {
cmn_err(CE_WARN, "fhc%d: unable to map internal "
"registers", ddi_get_instance(softsp->dip));
goto bad;
}
/*
* Fill in the virtual addresses of the registers in the
* fhc_soft_state structure.
*/
softsp->rctrl = (uint_t *)((char *)(softsp->id) +
FHC_OFF_RCTRL);
softsp->ctrl = (uint_t *)((char *)(softsp->id) +
FHC_OFF_CTRL);
softsp->bsr = (uint_t *)((char *)(softsp->id) +
FHC_OFF_BSR);
softsp->jtag_ctrl = (uint_t *)((char *)(softsp->id) +
FHC_OFF_JTAG_CTRL);
softsp->jt_master.jtag_cmd = (uint_t *)((char *)(softsp->id) +
FHC_OFF_JTAG_CMD);
/* map in register set 1 */
if (ddi_map_regs(softsp->dip, 1,
(caddr_t *)&softsp->igr, 0, 0)) {
cmn_err(CE_WARN, "fhc%d: unable to map IGR "
"register", ddi_get_instance(softsp->dip));
goto bad;
}
/*
* map in register set 2
* XXX this can never be used as an interrupt generator
* (hardware queue overflow in fhc)
*/
if (ddi_map_regs(softsp->dip, 2,
(caddr_t *)&softsp->intr_regs[FHC_FANFAIL_INO].mapping_reg,
0, 0)) {
cmn_err(CE_WARN, "fhc%d: unable to map Fan Fail "
"IMR register", ddi_get_instance(softsp->dip));
goto bad;
}
/* map in register set 3 */
if (ddi_map_regs(softsp->dip, 3,
(caddr_t *)&softsp->intr_regs[FHC_SYS_INO].mapping_reg,
0, 0)) {
cmn_err(CE_WARN, "fhc%d: unable to map System "
"IMR register\n", ddi_get_instance(softsp->dip));
goto bad;
}
/* map in register set 4 */
if (ddi_map_regs(softsp->dip, 4,
(caddr_t *)&softsp->intr_regs[FHC_UART_INO].mapping_reg,
0, 0)) {
cmn_err(CE_WARN, "fhc%d: unable to map UART "
"IMR register\n", ddi_get_instance(softsp->dip));
goto bad;
}
/* map in register set 5 */
if (ddi_map_regs(softsp->dip, 5,
(caddr_t *)&softsp->intr_regs[FHC_TOD_INO].mapping_reg,
0, 0)) {
cmn_err(CE_WARN, "fhc%d: unable to map FHC TOD "
"IMR register", ddi_get_instance(softsp->dip));
goto bad;
}
/* Loop over all intr sets and setup the VAs for the ISMR */
/* TODO - Make sure we are calculating the ISMR correctly. */
for (i = 0; i < FHC_MAX_INO; i++) {
softsp->intr_regs[i].clear_reg =
(uint_t *)((char *)(softsp->intr_regs[i].mapping_reg) +
FHC_OFF_ISMR);
/* Now clear the state machines to idle */
*(softsp->intr_regs[i].clear_reg) = ISM_IDLE;
}
/*
* It is OK to not have a OBP_BOARDNUM property. This happens for
* the board which is a child of central. However this FHC
* still needs a proper Interrupt Group Number programmed
* into the Interrupt Group register, because the other
* instance of FHC, which is not under central, will properly
* program the IGR. The numbers from the two settings of the
* IGR need to be the same. One driver cannot wait for the
* other to program the IGR, because there is no guarantee
* which instance of FHC will get attached first.
*/
if ((board = (int)ddi_getprop(DDI_DEV_T_ANY, softsp->dip,
DDI_PROP_DONTPASS, OBP_BOARDNUM, -1)) == -1) {
/*
* Now determine the board number by reading the
* hardware register.
*/
board = FHC_BSR_TO_BD(*(softsp->bsr));
softsp->is_central = 1;
}
/*
* If this fhc holds JTAG master line, and is not the central fhc,
* (this avoids two JTAG master nodes) then initialize the
* mutex and set the flag in the structure.
*/
if ((*(softsp->jtag_ctrl) & JTAG_MASTER_EN) && !softsp->is_central) {
mutex_init(&(softsp->jt_master.lock), NULL, MUTEX_DEFAULT,
NULL);
softsp->jt_master.is_master = 1;
} else {
softsp->jt_master.is_master = 0;
}
fhc_bd_init(softsp, board, fhc_board_type(softsp, board));
/* Initialize the mutex guarding the poll_list. */
mutex_init(&softsp->poll_list_lock, NULL, MUTEX_DRIVER, NULL);
/* Initialize the mutex guarding the FHC CSR */
mutex_init(&softsp->ctrl_lock, NULL, MUTEX_DRIVER, NULL);
/* Initialize the poll_list to be empty */
for (i = 0; i < MAX_ZS_CNT; i++) {
softsp->poll_list[i].funcp = NULL;
}
/* Modify the various registers in the FHC now */
/*
* We know this board to be present now, record that state and
* remove the NOT_BRD_PRES condition
*/
if (!(softsp->is_central)) {
mutex_enter(&softsp->ctrl_lock);
*(softsp->ctrl) |= FHC_NOT_BRD_PRES;
/* Now flush the hardware store buffers. */
tmp_reg = *(softsp->ctrl);
#ifdef lint
tmp_reg = tmp_reg;
#endif
/* XXX record the board state in global space */
mutex_exit(&softsp->ctrl_lock);
/* Add kstats for all non-central instances of the FHC. */
fhc_add_kstats(softsp);
}
/*
* Read the device tree to see if this system is in an environmental
* chamber.
*/
if (temperature_chamber == -1) {
temperature_chamber = check_for_chamber();
}
/* Check for inherited faults from the PROM. */
if (*softsp->ctrl & FHC_LED_MID) {
reg_fault(softsp->list->sc.board, FT_PROM, FT_BOARD);
}
/*
* setup the IGR. Shift the board number over by one to get
* the UPA MID.
*/
*(softsp->igr) = (softsp->list->sc.board) << 1;
/* Now flush the hardware store buffers. */
tmp_reg = *(softsp->id);
#ifdef lint
tmp_reg = tmp_reg;
#endif
/* Add the interrupt redistribution callback. */
intr_dist_add(fhc_intrdist, (void *)softsp->dip);
return (DDI_SUCCESS);
bad:
fhc_unmap_regs(softsp);
return (DDI_FAILURE);
}
static uint_t
fhc_intr_wrapper(caddr_t arg)
{
uint_t intr_return;
uint_t tmpreg;
struct fhc_wrapper_arg *intr_info = (struct fhc_wrapper_arg *)arg;
uint_t (*funcp)(caddr_t, caddr_t) = intr_info->funcp;
caddr_t iarg1 = intr_info->arg1;
caddr_t iarg2 = intr_info->arg2;
dev_info_t *dip = intr_info->child;
tmpreg = ISM_IDLE;
DTRACE_PROBE4(interrupt__start, dev_info_t, dip,
void *, funcp, caddr_t, iarg1, caddr_t, iarg2);
intr_return = (*funcp)(iarg1, iarg2);
DTRACE_PROBE4(interrupt__complete, dev_info_t, dip,
void *, funcp, caddr_t, iarg1, int, intr_return);
/* Idle the state machine. */
*(intr_info->clear_reg) = tmpreg;
/* Flush the hardware store buffers. */
tmpreg = *(intr_info->clear_reg);
#ifdef lint
tmpreg = tmpreg;
#endif /* lint */
return (intr_return);
}
/*
* fhc_zs_intr_wrapper
*
* This function handles intrerrupts where more than one device may interupt
* the fhc with the same mondo.
*/
#define MAX_INTR_CNT 10
static uint_t
fhc_zs_intr_wrapper(caddr_t arg)
{
struct fhc_soft_state *softsp = (struct fhc_soft_state *)arg;
uint_t (*funcp0)(caddr_t, caddr_t);
uint_t (*funcp1)(caddr_t, caddr_t);
caddr_t funcp0_arg1, funcp0_arg2, funcp1_arg1, funcp1_arg2;
uint_t tmp_reg;
uint_t result = DDI_INTR_UNCLAIMED;
volatile uint_t *clear_reg;
uchar_t *spurious_cntr = &softsp->spurious_zs_cntr;
funcp0 = softsp->poll_list[0].funcp;
funcp1 = softsp->poll_list[1].funcp;
funcp0_arg1 = softsp->poll_list[0].arg1;
funcp0_arg2 = softsp->poll_list[0].arg2;
funcp1_arg1 = softsp->poll_list[1].arg1;
funcp1_arg2 = softsp->poll_list[1].arg2;
clear_reg = softsp->intr_regs[FHC_UART_INO].clear_reg;
if (funcp0 != NULL) {
if ((funcp0)(funcp0_arg1, funcp0_arg2) == DDI_INTR_CLAIMED) {
result = DDI_INTR_CLAIMED;
}
}
if (funcp1 != NULL) {
if ((funcp1)(funcp1_arg1, funcp1_arg2) == DDI_INTR_CLAIMED) {
result = DDI_INTR_CLAIMED;
}
}
if (result == DDI_INTR_UNCLAIMED) {
(*spurious_cntr)++;
if (*spurious_cntr < MAX_INTR_CNT) {
result = DDI_INTR_CLAIMED;
} else {
*spurious_cntr = (uchar_t)0;
}
} else {
*spurious_cntr = (uchar_t)0;
}
/* Idle the state machine. */
*(clear_reg) = ISM_IDLE;
/* flush the store buffers. */
tmp_reg = *(clear_reg);
#ifdef lint
tmp_reg = tmp_reg;
#endif
return (result);
}
/*
* add_intrspec - Add an interrupt specification.
*/
static int
fhc_add_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp)
{
int ino;
struct fhc_wrapper_arg *fhc_arg;
struct fhc_soft_state *softsp = (struct fhc_soft_state *)
ddi_get_soft_state(fhcp, ddi_get_instance(dip));
volatile uint_t *mondo_vec_reg;
uint_t tmp_mondo_vec;
uint_t tmpreg; /* HW flush reg */
uint_t cpu_id;
int ret = DDI_SUCCESS;
/* Xlate the interrupt */
fhc_xlate_intrs(hdlp,
(softsp->list->sc.board << BD_IVINTR_SHFT));
/* get the mondo number */
ino = FHC_INO(hdlp->ih_vector);
mondo_vec_reg = softsp->intr_regs[ino].mapping_reg;
ASSERT(ino < FHC_MAX_INO);
/* We don't use the two spare interrupts. */
if (ino >= FHC_MAX_INO) {
cmn_err(CE_WARN, "fhc%d: Spare interrupt %d not usable",
ddi_get_instance(dip), ino);
return (DDI_FAILURE);
}
/* TOD and Fan Fail interrupts are not usable */
if (ino == FHC_TOD_INO) {
cmn_err(CE_WARN, "fhc%d: TOD interrupt not usable",
ddi_get_instance(dip));
return (DDI_FAILURE);
}
if (ino == FHC_FANFAIL_INO) {
cmn_err(CE_WARN, "fhc%d: Fan fail interrupt not usable",
ddi_get_instance(dip));
return (DDI_FAILURE);
}
/*
* If the interrupt is for the zs chips, use the vector
* polling lists. Otherwise use a straight handler.
*/
if (ino == FHC_UART_INO) {
int32_t zs_inst;
/* First lock the mutex for this poll_list */
mutex_enter(&softsp->poll_list_lock);
/*
* Add this interrupt to the polling list.
*/
/* figure out where to add this item in the list */
for (zs_inst = 0; zs_inst < MAX_ZS_CNT; zs_inst++) {
if (softsp->poll_list[zs_inst].funcp == NULL) {
softsp->poll_list[zs_inst].arg1 =
hdlp->ih_cb_arg1;
softsp->poll_list[zs_inst].arg2 =
hdlp->ih_cb_arg2;
softsp->poll_list[zs_inst].funcp =
(ddi_intr_handler_t *)
hdlp->ih_cb_func;
softsp->poll_list[zs_inst].inum =
hdlp->ih_inum;
softsp->poll_list[zs_inst].child = rdip;
break;
}
}
if (zs_inst >= MAX_ZS_CNT) {
cmn_err(CE_WARN,
"fhc%d: poll list overflow",
ddi_get_instance(dip));
mutex_exit(&softsp->poll_list_lock);
ret = DDI_FAILURE;
goto done;
}
/*
* If polling list is empty, then install handler
* and enable interrupts for this ino.
*/
if (zs_inst == 0) {
DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp,
(ddi_intr_handler_t *)fhc_zs_intr_wrapper,
(caddr_t)softsp, NULL);
ret = i_ddi_add_ivintr(hdlp);
DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp,
softsp->poll_list[zs_inst].funcp,
softsp->poll_list[zs_inst].arg1,
softsp->poll_list[zs_inst].arg2);
if (ret != DDI_SUCCESS)
goto done;
}
/*
* If both zs handlers are active, then this is the
* second add_intrspec called, so do not enable
* the IMR_VALID bit, it is already on.
*/
if (zs_inst > 0) {
/* now release the mutex and return */
mutex_exit(&softsp->poll_list_lock);
goto done;
} else {
/* just release the mutex */
mutex_exit(&softsp->poll_list_lock);
}
} else { /* normal interrupt installation */
int32_t i;
/* Allocate a nexus interrupt data structure */
fhc_arg = kmem_alloc(sizeof (struct fhc_wrapper_arg), KM_SLEEP);
fhc_arg->child = rdip;
fhc_arg->mapping_reg = mondo_vec_reg;
fhc_arg->clear_reg = (softsp->intr_regs[ino].clear_reg);
fhc_arg->softsp = softsp;
fhc_arg->funcp =
(ddi_intr_handler_t *)hdlp->ih_cb_func;
fhc_arg->arg1 = hdlp->ih_cb_arg1;
fhc_arg->arg2 = hdlp->ih_cb_arg2;
fhc_arg->inum = hdlp->ih_inum;
for (i = 0; i < FHC_MAX_INO; i++) {
if (softsp->intr_list[i] == 0) {
softsp->intr_list[i] = fhc_arg;
break;
}
}
/*
* Save the fhc_arg in the ispec so we can use this info
* later to uninstall this interrupt spec.
*/
DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp,
(ddi_intr_handler_t *)fhc_intr_wrapper,
(caddr_t)fhc_arg, NULL);
ret = i_ddi_add_ivintr(hdlp);
DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp, fhc_arg->funcp,
fhc_arg->arg1, fhc_arg->arg2);
if (ret != DDI_SUCCESS)
goto done;
}
/*
* Clear out a stale 'pending' or 'transmit' state in
* this device's ISM that might have been left from a
* previous session.
*
* Since all FHC interrupts are level interrupts, any
* real interrupting condition will immediately transition
* the ISM back to pending.
*/
*(softsp->intr_regs[ino].clear_reg) = ISM_IDLE;
/*
* Program the mondo vector accordingly. This MUST be the
* last thing we do. Once we program the ino, the device
* may begin to interrupt.
*/
cpu_id = intr_dist_cpuid();
tmp_mondo_vec = cpu_id << INR_PID_SHIFT;
/* don't do this for fan because fan has a special control */
if (ino == FHC_FANFAIL_INO)
panic("fhc%d: enabling fanfail interrupt",
ddi_get_instance(dip));
else
tmp_mondo_vec |= IMR_VALID;
DPRINTF(FHC_INTERRUPT_DEBUG,
("Mondo 0x%x mapping reg: 0x%p", hdlp->ih_vector, mondo_vec_reg));
/* Store it in the hardware reg. */
*mondo_vec_reg = tmp_mondo_vec;
/* Read a FHC register to flush store buffers */
tmpreg = *(softsp->id);
#ifdef lint
tmpreg = tmpreg;
#endif
done:
return (ret);
}
/*
* remove_intrspec - Remove an interrupt specification.
*/
static void
fhc_remove_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp)
{
volatile uint_t *mondo_vec_reg;
volatile uint_t tmpreg;
int i;
struct fhc_soft_state *softsp = (struct fhc_soft_state *)
ddi_get_soft_state(fhcp, ddi_get_instance(dip));
int ino;
/* Xlate the interrupt */
fhc_xlate_intrs(hdlp,
(softsp->list->sc.board << BD_IVINTR_SHFT));
/* get the mondo number */
ino = FHC_INO(hdlp->ih_vector);
if (ino == FHC_UART_INO) {
int intr_found = 0;
/* Lock the poll_list first */
mutex_enter(&softsp->poll_list_lock);
/*
* Find which entry in the poll list belongs to this
* intrspec.
*/
for (i = 0; i < MAX_ZS_CNT; i++) {
if (softsp->poll_list[i].child == rdip &&
softsp->poll_list[i].inum == hdlp->ih_inum) {
softsp->poll_list[i].funcp = NULL;
intr_found++;
}
}
/* If we did not find an entry, then we have a problem */
if (!intr_found) {
cmn_err(CE_WARN, "fhc%d: Intrspec not found in"
" poll list", ddi_get_instance(dip));
mutex_exit(&softsp->poll_list_lock);
goto done;
}
/*
* If we have removed all active entries for the poll
* list, then we have to disable interupts at this point.
*/
if ((softsp->poll_list[0].funcp == NULL) &&
(softsp->poll_list[1].funcp == NULL)) {
mondo_vec_reg =
softsp->intr_regs[FHC_UART_INO].mapping_reg;
*mondo_vec_reg &= ~IMR_VALID;
/* flush the hardware buffers */
tmpreg = *(softsp->ctrl);
/* Eliminate the particular handler from the system. */
i_ddi_rem_ivintr(hdlp);
}
mutex_exit(&softsp->poll_list_lock);
} else {
int32_t i;
for (i = 0; i < FHC_MAX_INO; i++)
if (softsp->intr_list[i]->child == rdip &&
softsp->intr_list[i]->inum == hdlp->ih_inum)
break;
if (i >= FHC_MAX_INO)
goto done;
mondo_vec_reg = softsp->intr_list[i]->mapping_reg;
/* Turn off the valid bit in the mapping register. */
/* XXX what about FHC_FANFAIL owned imr? */
*mondo_vec_reg &= ~IMR_VALID;
/* flush the hardware store buffers */
tmpreg = *(softsp->id);
#ifdef lint
tmpreg = tmpreg;
#endif
/* Eliminate the particular handler from the system. */
i_ddi_rem_ivintr(hdlp);
kmem_free(softsp->intr_list[i],
sizeof (struct fhc_wrapper_arg));
softsp->intr_list[i] = 0;
}
done:
;
}
/* new intr_ops structure */
static int
fhc_intr_ops(dev_info_t *dip, dev_info_t *rdip, ddi_intr_op_t intr_op,
ddi_intr_handle_impl_t *hdlp, void *result)
{
int ret = DDI_SUCCESS;
switch (intr_op) {
case DDI_INTROP_GETCAP:
*(int *)result = DDI_INTR_FLAG_LEVEL;
break;
case DDI_INTROP_ALLOC:
*(int *)result = hdlp->ih_scratch1;
break;
case DDI_INTROP_FREE:
break;
case DDI_INTROP_GETPRI:
if (hdlp->ih_pri == 0) {
struct fhc_soft_state *softsp =
(struct fhc_soft_state *)ddi_get_soft_state(fhcp,
ddi_get_instance(dip));
/* Xlate the interrupt */
fhc_xlate_intrs(hdlp,
(softsp->list->sc.board << BD_IVINTR_SHFT));
}
*(int *)result = hdlp->ih_pri;
break;
case DDI_INTROP_SETPRI:
break;
case DDI_INTROP_ADDISR:
ret = fhc_add_intr_impl(dip, rdip, hdlp);
break;
case DDI_INTROP_REMISR:
fhc_remove_intr_impl(dip, rdip, hdlp);
break;
case DDI_INTROP_ENABLE:
case DDI_INTROP_DISABLE:
break;
case DDI_INTROP_NINTRS:
case DDI_INTROP_NAVAIL:
*(int *)result = i_ddi_get_intx_nintrs(rdip);
break;
case DDI_INTROP_SETCAP:
case DDI_INTROP_SETMASK:
case DDI_INTROP_CLRMASK:
case DDI_INTROP_GETPENDING:
ret = DDI_ENOTSUP;
break;
case DDI_INTROP_SUPPORTED_TYPES:
/* only support fixed interrupts */
*(int *)result = i_ddi_get_intx_nintrs(rdip) ?
DDI_INTR_TYPE_FIXED : 0;
break;
default:
ret = i_ddi_intr_ops(dip, rdip, intr_op, hdlp, result);
break;
}
return (ret);
}
/*
* FHC Control Ops routine
*
* Requests handled here:
* DDI_CTLOPS_INITCHILD see impl_ddi_sunbus_initchild() for details
* DDI_CTLOPS_UNINITCHILD see fhc_uninit_child() for details
* DDI_CTLOPS_REPORTDEV TODO - need to implement this.
*/
static int
fhc_ctlops(dev_info_t *dip, dev_info_t *rdip,
ddi_ctl_enum_t op, void *arg, void *result)
{
switch (op) {
case DDI_CTLOPS_INITCHILD:
DPRINTF(FHC_CTLOPS_DEBUG, ("DDI_CTLOPS_INITCHILD\n"));
return (impl_ddi_sunbus_initchild((dev_info_t *)arg));
case DDI_CTLOPS_UNINITCHILD:
impl_ddi_sunbus_removechild((dev_info_t *)arg);
return (DDI_SUCCESS);
case DDI_CTLOPS_REPORTDEV:
/*
* TODO - Figure out what makes sense to report here.
*/
return (DDI_SUCCESS);
case DDI_CTLOPS_POKE:
case DDI_CTLOPS_PEEK:
return (fhc_ctlops_peekpoke(op, (peekpoke_ctlops_t *)arg,
result));
default:
return (ddi_ctlops(dip, rdip, op, arg, result));
}
}
/*
* We're prepared to claim that the interrupt string is in
* the form of a list of <FHCintr> specifications, or we're dealing
* with on-board devices and we have an interrupt_number property which
* gives us our mondo number.
* Translate the mondos into fhcintrspecs.
*/
/* ARGSUSED */
static void
fhc_xlate_intrs(ddi_intr_handle_impl_t *hdlp, uint32_t ign)
{
uint32_t mondo;
mondo = hdlp->ih_vector;
hdlp->ih_vector = (mondo | ign);
if (hdlp->ih_pri == 0)
hdlp->ih_pri = fhc_int_priorities[FHC_INO(mondo)];
}
static int
fhc_ctlops_peekpoke(ddi_ctl_enum_t cmd, peekpoke_ctlops_t *in_args,
void *result)
{
int err = DDI_SUCCESS;
on_trap_data_t otd;
/* No safe access except for peek/poke is supported. */
if (in_args->handle != NULL)
return (DDI_FAILURE);
/* Set up protected environment. */
if (!on_trap(&otd, OT_DATA_ACCESS)) {
uintptr_t tramp = otd.ot_trampoline;
if (cmd == DDI_CTLOPS_POKE) {
otd.ot_trampoline = (uintptr_t)&poke_fault;
err = do_poke(in_args->size, (void *)in_args->dev_addr,
(void *)in_args->host_addr);
} else {
otd.ot_trampoline = (uintptr_t)&peek_fault;
err = do_peek(in_args->size, (void *)in_args->dev_addr,
(void *)in_args->host_addr);
result = (void *)in_args->host_addr;
}
otd.ot_trampoline = tramp;
} else
err = DDI_FAILURE;
/* Take down protected environment. */
no_trap();
return (err);
}
/*
* This function initializes the temperature arrays for use. All
* temperatures are set in to invalid value to start.
*/
void
init_temp_arrays(struct temp_stats *envstat)
{
int i;
envstat->index = 0;
for (i = 0; i < L1_SZ; i++) {
envstat->l1[i] = NA_TEMP;
}
for (i = 0; i < L2_SZ; i++) {
envstat->l2[i] = NA_TEMP;
}
for (i = 0; i < L3_SZ; i++) {
envstat->l3[i] = NA_TEMP;
}
for (i = 0; i < L4_SZ; i++) {
envstat->l4[i] = NA_TEMP;
}
for (i = 0; i < L5_SZ; i++) {
envstat->l5[i] = NA_TEMP;
}
envstat->max = NA_TEMP;
envstat->min = NA_TEMP;
envstat->trend = TREND_UNKNOWN;
envstat->version = TEMP_KSTAT_VERSION;
envstat->override = NA_TEMP;
}
/* Inhibit warning messages below this temperature, eg for CPU poweron. */
static uint_t fhc_cpu_warning_temp_threshold = FHC_CPU_WARNING_TEMP_THRESHOLD;
/*
* This function manages the temperature history in the temperature
* statistics buffer passed in. It calls the temperature calibration
* routines and maintains the time averaged temperature data.
*/
void
update_temp(dev_info_t *pdip, struct temp_stats *envstat, uchar_t value)
{
uint_t index; /* The absolute temperature counter */
uint_t tmp_index; /* temp index into upper level array */
int count; /* Count of non-zero values in array */
int total; /* sum total of non-zero values in array */
short real_temp; /* calibrated temperature */
int i;
struct fhc_soft_state *softsp;
char buffer[256]; /* buffer for warning of overtemp */
enum temp_state temp_state; /* Temperature state */
/*
* NOTE: This global counter is not protected since we're called
* serially for each board.
*/
static int shutdown_msg = 0; /* Flag if shutdown warning issued */
/* determine soft state pointer of parent */
softsp = ddi_get_soft_state(fhcp, ddi_get_instance(pdip));
envstat->index++;
index = envstat->index;
/*
* You need to update the level 5 intervals first, since
* they are based on the data from the level 4 intervals,
* and so on, down to the level 1 intervals.
*/
/* update the level 5 intervals if it is time */
if (((tmp_index = L5_INDEX(index)) > 0) && (L5_REM(index) == 0)) {
/* Generate the index within the level 5 array */
tmp_index -= 1; /* decrement by 1 for indexing */
tmp_index = tmp_index % L5_SZ;
/* take an average of the level 4 array */
for (i = 0, count = 0, total = 0; i < L4_SZ; i++) {
/* Do not include zero values in average */
if (envstat->l4[i] != NA_TEMP) {
total += (int)envstat->l4[i];
count++;
}
}
/*
* If there were any level 4 data points to average,
* do so.
*/
if (count != 0) {
envstat->l5[tmp_index] = total/count;
} else {
envstat->l5[tmp_index] = NA_TEMP;
}
}
/* update the level 4 intervals if it is time */
if (((tmp_index = L4_INDEX(index)) > 0) && (L4_REM(index) == 0)) {
/* Generate the index within the level 4 array */
tmp_index -= 1; /* decrement by 1 for indexing */
tmp_index = tmp_index % L4_SZ;
/* take an average of the level 3 array */
for (i = 0, count = 0, total = 0; i < L3_SZ; i++) {
/* Do not include zero values in average */
if (envstat->l3[i] != NA_TEMP) {
total += (int)envstat->l3[i];
count++;
}
}
/*
* If there were any level 3 data points to average,
* do so.
*/
if (count != 0) {
envstat->l4[tmp_index] = total/count;
} else {
envstat->l4[tmp_index] = NA_TEMP;
}
}
/* update the level 3 intervals if it is time */
if (((tmp_index = L3_INDEX(index)) > 0) && (L3_REM(index) == 0)) {
/* Generate the index within the level 3 array */
tmp_index -= 1; /* decrement by 1 for indexing */
tmp_index = tmp_index % L3_SZ;
/* take an average of the level 2 array */
for (i = 0, count = 0, total = 0; i < L2_SZ; i++) {
/* Do not include zero values in average */
if (envstat->l2[i] != NA_TEMP) {
total += (int)envstat->l2[i];
count++;
}
}
/*
* If there were any level 2 data points to average,
* do so.
*/
if (count != 0) {
envstat->l3[tmp_index] = total/count;
} else {
envstat->l3[tmp_index] = NA_TEMP;
}
}
/* update the level 2 intervals if it is time */
if (((tmp_index = L2_INDEX(index)) > 0) && (L2_REM(index) == 0)) {
/* Generate the index within the level 2 array */
tmp_index -= 1; /* decrement by 1 for indexing */
tmp_index = tmp_index % L2_SZ;
/* take an average of the level 1 array */
for (i = 0, count = 0, total = 0; i < L1_SZ; i++) {
/* Do not include zero values in average */
if (envstat->l1[i] != NA_TEMP) {
total += (int)envstat->l1[i];
count++;
}
}
/*
* If there were any level 1 data points to average,
* do so.
*/
if (count != 0) {
envstat->l2[tmp_index] = total/count;
} else {
envstat->l2[tmp_index] = NA_TEMP;
}
}
/* determine the current temperature in degrees Celcius */
if (envstat->override != NA_TEMP) {
/* use override temperature for this board */
real_temp = envstat->override;
} else {
/* Run the calibration function using this board type */
real_temp = calibrate_temp(softsp->list->sc.type, value,
softsp->list->sc.ac_compid);
}
envstat->l1[index % L1_SZ] = real_temp;
/* check if the temperature state for this device needs to change */
temp_state = get_temp_state(softsp->list->sc.type, real_temp,
softsp->list->sc.board);
/* has the state changed? Then get the board string ready */
if (temp_state != envstat->state) {
int board = softsp->list->sc.board;
enum board_type type = softsp->list->sc.type;
build_bd_display_str(buffer, type, board);
if (temp_state > envstat->state) {
if (envstat->state == TEMP_OK) {
if (type == CLOCK_BOARD) {
reg_fault(0, FT_OVERTEMP, FT_SYSTEM);
} else {
reg_fault(board, FT_OVERTEMP,
FT_BOARD);
}
}
/* heating up, change state now */
envstat->temp_cnt = 0;
envstat->state = temp_state;
if (temp_state == TEMP_WARN) {
/* now warn the user of the problem */
cmn_err(CE_WARN,
"%s is warm (temperature: %dC). "
"Please check system cooling", buffer,
real_temp);
fhc_bd_update(board, SYSC_EVT_BD_OVERTEMP);
if (temperature_chamber == -1)
temperature_chamber =
check_for_chamber();
} else if (temp_state == TEMP_DANGER) {
cmn_err(CE_WARN,
"%s is very hot (temperature: %dC)",
buffer, real_temp);
envstat->shutdown_cnt = 1;
if (temperature_chamber == -1)
temperature_chamber =
check_for_chamber();
if ((temperature_chamber == 0) &&
enable_overtemp_powerdown) {
/*
* NOTE: The "%d seconds" is not
* necessarily accurate in the case
* where we have multiple boards
* overheating and subsequently cooling
* down.
*/
if (shutdown_msg == 0) {
cmn_err(CE_WARN, "System "
"shutdown scheduled "
"in %d seconds due to "
"over-temperature "
"condition on %s",
SHUTDOWN_TIMEOUT_SEC,
buffer);
}
shutdown_msg++;
}
}
/*
* If this is a cpu board, power them off.
*/
if (temperature_chamber == 0) {
mutex_enter(&cpu_lock);
(void) fhc_board_poweroffcpus(board, NULL,
CPU_FORCED);
mutex_exit(&cpu_lock);
}
} else if (temp_state < envstat->state) {
/*
* Avert the sigpower that would
* otherwise be sent to init.
*/
envstat->shutdown_cnt = 0;
/* cooling down, use state counter */
if (envstat->temp_cnt == 0) {
envstat->temp_cnt = TEMP_STATE_COUNT;
} else if (--envstat->temp_cnt == 0) {
if (temp_state == TEMP_WARN) {
cmn_err(CE_NOTE,
"%s is cooling "
"(temperature: %dC)", buffer,
real_temp);
} else if (temp_state == TEMP_OK) {
cmn_err(CE_NOTE,
"%s has cooled down "
"(temperature: %dC), system OK",
buffer, real_temp);
if (type == CLOCK_BOARD) {
clear_fault(0, FT_OVERTEMP,
FT_SYSTEM);
} else {
clear_fault(board, FT_OVERTEMP,
FT_BOARD);
}
}
/*
* If we just came out of TEMP_DANGER, and
* a warning was issued about shutting down,
* let the user know it's been cancelled
*/
if (envstat->state == TEMP_DANGER &&
(temperature_chamber == 0) &&
enable_overtemp_powerdown &&
(powerdown_started == 0) &&
(--shutdown_msg == 0)) {
cmn_err(CE_NOTE, "System "
"shutdown due to over-"
"temperature "
"condition cancelled");
}
envstat->state = temp_state;
fhc_bd_update(board, SYSC_EVT_BD_TEMP_OK);
}
}
} else {
envstat->temp_cnt = 0;
if (temp_state == TEMP_DANGER) {
if (temperature_chamber == -1) {
temperature_chamber = check_for_chamber();
}
if ((envstat->shutdown_cnt++ >= SHUTDOWN_COUNT) &&
(temperature_chamber == 0) &&
enable_overtemp_powerdown &&
(powerdown_started == 0)) {
powerdown_started = 1;
/* the system is still too hot */
build_bd_display_str(buffer,
softsp->list->sc.type,
softsp->list->sc.board);
cmn_err(CE_WARN, "%s still too hot "
"(temperature: %dC)."
" Overtemp shutdown started", buffer,
real_temp);
fhc_reboot();
}
}
}
/* update the maximum and minimum temperatures if necessary */
if ((envstat->max == NA_TEMP) || (real_temp > envstat->max)) {
envstat->max = real_temp;
}
if ((envstat->min == NA_TEMP) || (real_temp < envstat->min)) {
envstat->min = real_temp;
}
/*
* Update the temperature trend. Currently, the temperature
* trend algorithm is based on the level 2 stats. So, we
* only need to run every time the level 2 stats get updated.
*/
if (((tmp_index = L2_INDEX(index)) > 0) && (L2_REM(index) == 0)) {
enum board_type type = softsp->list->sc.type;
envstat->trend = temp_trend(envstat);
/* Issue a warning if the temperature is rising rapidly. */
/* For CPU boards, don't warn if CPUs just powered on. */
if (envstat->trend == TREND_RAPID_RISE &&
(type != CPU_BOARD || real_temp >
fhc_cpu_warning_temp_threshold)) {
int board = softsp->list->sc.board;
build_bd_display_str(buffer, type, board);
cmn_err(CE_WARN, "%s temperature is rising rapidly! "
"Current temperature is %dC", buffer,
real_temp);
}
}
}
#define PREV_L2_INDEX(x) ((x) ? ((x) - 1) : (L2_SZ - 1))
/*
* This routine determines if the temp of the device passed in is heating
* up, cooling down, or staying stable.
*/
enum temp_trend
temp_trend(struct temp_stats *tempstat)
{
int ii;
uint_t curr_index;
int curr_temp;
uint_t prev_index;
int prev_temp;
int trail_temp;
int delta;
int read_cnt;
enum temp_trend result = TREND_STABLE;
if (tempstat == NULL)
return (TREND_UNKNOWN);
curr_index = (L2_INDEX(tempstat->index) - 1) % L2_SZ;
curr_temp = tempstat->l2[curr_index];
/* Count how many temperature readings are available */
prev_index = curr_index;
for (read_cnt = 0; read_cnt < L2_SZ - 1; read_cnt++) {
if (tempstat->l2[prev_index] == NA_TEMP)
break;
prev_index = PREV_L2_INDEX(prev_index);
}
switch (read_cnt) {
case 0:
case 1:
result = TREND_UNKNOWN;
break;
default:
delta = curr_temp - tempstat->l2[PREV_L2_INDEX(curr_index)];
prev_index = curr_index;
trail_temp = prev_temp = curr_temp;
if (delta >= RAPID_RISE_THRESH) { /* rapid rise? */
result = TREND_RAPID_RISE;
} else if (delta > 0) { /* rise? */
for (ii = 1; ii < read_cnt; ii++) {
prev_index = PREV_L2_INDEX(prev_index);
prev_temp = tempstat->l2[prev_index];
if (prev_temp > trail_temp) {
break;
}
trail_temp = prev_temp;
if (prev_temp <= curr_temp - NOISE_THRESH) {
result = TREND_RISE;
break;
}
}
} else if (delta <= -RAPID_FALL_THRESH) { /* rapid fall? */
result = TREND_RAPID_FALL;
} else if (delta < 0) { /* fall? */
for (ii = 1; ii < read_cnt; ii++) {
prev_index = PREV_L2_INDEX(prev_index);
prev_temp = tempstat->l2[prev_index];
if (prev_temp < trail_temp) {
break;
}
trail_temp = prev_temp;
if (prev_temp >= curr_temp + NOISE_THRESH) {
result = TREND_FALL;
break;
}
}
}
}
return (result);
}
/*
* Reboot the system if we can, otherwise attempt a power down
*/
void
fhc_reboot(void)
{
proc_t *initpp;
/* send a SIGPWR to init process */
mutex_enter(&pidlock);
initpp = prfind(P_INITPID);
mutex_exit(&pidlock);
/*
* If we're still booting and init(1) isn't
* set up yet, simply halt.
*/
if (initpp != NULL) {
psignal(initpp, SIGFPE); /* init 6 */
} else {
power_down("Environmental Shutdown");
halt("Power off the System");
}
}
int
overtemp_kstat_update(kstat_t *ksp, int rw)
{
struct temp_stats *tempstat;
char *kstatp;
int i;
kstatp = (char *)ksp->ks_data;
tempstat = (struct temp_stats *)ksp->ks_private;
/*
* Kstat reads are used to retrieve the current system temperature
* history. Kstat writes are used to reset the max and min
* temperatures.
*/
if (rw == KSTAT_WRITE) {
short max; /* temporary copy of max temperature */
short min; /* temporary copy of min temperature */
/*
* search for and reset the max and min to the current
* array contents. Old max and min values will get
* averaged out as they move into the higher level arrays.
*/
max = tempstat->l1[0];
min = tempstat->l1[0];
/* Pull the max and min from Level 1 array */
for (i = 0; i < L1_SZ; i++) {
if ((tempstat->l1[i] != NA_TEMP) &&
(tempstat->l1[i] > max)) {
max = tempstat->l1[i];
}
if ((tempstat->l1[i] != NA_TEMP) &&
(tempstat->l1[i] < min)) {
min = tempstat->l1[i];
}
}
/* Pull the max and min from Level 2 array */
for (i = 0; i < L2_SZ; i++) {
if ((tempstat->l2[i] != NA_TEMP) &&
(tempstat->l2[i] > max)) {
max = tempstat->l2[i];
}
if ((tempstat->l2[i] != NA_TEMP) &&
(tempstat->l2[i] < min)) {
min = tempstat->l2[i];
}
}
/* Pull the max and min from Level 3 array */
for (i = 0; i < L3_SZ; i++) {
if ((tempstat->l3[i] != NA_TEMP) &&
(tempstat->l3[i] > max)) {
max = tempstat->l3[i];
}
if ((tempstat->l3[i] != NA_TEMP) &&
(tempstat->l3[i] < min)) {
min = tempstat->l3[i];
}
}
/* Pull the max and min from Level 4 array */
for (i = 0; i < L4_SZ; i++) {
if ((tempstat->l4[i] != NA_TEMP) &&
(tempstat->l4[i] > max)) {
max = tempstat->l4[i];
}
if ((tempstat->l4[i] != NA_TEMP) &&
(tempstat->l4[i] < min)) {
min = tempstat->l4[i];
}
}
/* Pull the max and min from Level 5 array */
for (i = 0; i < L5_SZ; i++) {
if ((tempstat->l5[i] != NA_TEMP) &&
(tempstat->l5[i] > max)) {
max = tempstat->l5[i];
}
if ((tempstat->l5[i] != NA_TEMP) &&
(tempstat->l5[i] < min)) {
min = tempstat->l5[i];
}
}
} else {
/*
* copy the temperature history buffer into the
* kstat structure.
*/
bcopy(tempstat, kstatp, sizeof (struct temp_stats));
}
return (0);
}
int
temp_override_kstat_update(kstat_t *ksp, int rw)
{
short *over;
short *kstatp;
kstatp = (short *)ksp->ks_data;
over = (short *)ksp->ks_private;
/*
* Kstat reads are used to get the temperature override setting.
* Kstat writes are used to set the temperature override setting.
*/
if (rw == KSTAT_WRITE) {
*over = *kstatp;
} else {
*kstatp = *over;
}
return (0);
}
/*
* This function uses the calibration tables at the beginning of this file
* to lookup the actual temperature of the thermistor in degrees Celcius.
* If the measurement is out of the bounds of the acceptable values, the
* closest boundary value is used instead.
*/
static short
calibrate_temp(enum board_type type, uchar_t temp, uint_t ac_comp)
{
short result = NA_TEMP;
if (dont_calibrate == 1) {
return ((short)temp);
}
switch (type) {
case CPU_BOARD:
/*
* If AC chip revision is >= 4 or if it is unitialized,
* then use the new calibration tables.
*/
if ((CHIP_REV(ac_comp) >= 4) || (CHIP_REV(ac_comp) == 0)) {
if (temp >= CPU2_MX_CNT) {
result = cpu2_table[CPU2_MX_CNT-1];
} else {
result = cpu2_table[temp];
}
} else {
if (temp >= CPU_MX_CNT) {
result = cpu_table[CPU_MX_CNT-1];
} else {
result = cpu_table[temp];
}
}
break;
case IO_2SBUS_BOARD:
case IO_SBUS_FFB_BOARD:
case IO_PCI_BOARD:
case IO_2SBUS_SOCPLUS_BOARD:
case IO_SBUS_FFB_SOCPLUS_BOARD:
if (temp < IO_MN_CNT) {
result = io_table[IO_MN_CNT];
} else if (temp >= IO_MX_CNT) {
result = io_table[IO_MX_CNT-1];
} else {
result = io_table[temp];
}
break;
case CLOCK_BOARD:
if (temp < CLK_MN_CNT) {
result = clock_table[CLK_MN_CNT];
} else if (temp >= CLK_MX_CNT) {
result = clock_table[CLK_MX_CNT-1];
} else {
result = clock_table[temp];
}
break;
default:
break;
}
return (result);
}
/*
* Determine the temperature state of this board based on its type and
* the actual temperature in degrees Celcius.
*/
static enum temp_state
get_temp_state(enum board_type type, short temp, int board)
{
enum temp_state state = TEMP_OK;
short warn_limit;
short danger_limit;
struct cpu *cpa, *cpb;
switch (type) {
case CPU_BOARD:
warn_limit = cpu_warn_temp;
danger_limit = cpu_danger_temp;
/*
* For CPU boards with frequency >= 400 MHZ,
* temperature zones are different.
*/
mutex_enter(&cpu_lock);
if ((cpa = cpu_get(FHC_BOARD2CPU_A(board))) != NULL) {
if ((cpa->cpu_type_info.pi_clock) >= 400) {
warn_limit = cpu_warn_temp_4x;
danger_limit = cpu_danger_temp_4x;
}
}
if ((cpb = cpu_get(FHC_BOARD2CPU_B(board))) != NULL) {
if ((cpb->cpu_type_info.pi_clock) >= 400) {
warn_limit = cpu_warn_temp_4x;
danger_limit = cpu_danger_temp_4x;
}
}
mutex_exit(&cpu_lock);
break;
case IO_2SBUS_BOARD:
case IO_SBUS_FFB_BOARD:
case IO_PCI_BOARD:
case IO_2SBUS_SOCPLUS_BOARD:
case IO_SBUS_FFB_SOCPLUS_BOARD:
warn_limit = io_warn_temp;
danger_limit = io_danger_temp;
break;
case CLOCK_BOARD:
warn_limit = clk_warn_temp;
danger_limit = clk_danger_temp;
break;
case UNINIT_BOARD:
case UNKNOWN_BOARD:
case MEM_BOARD:
default:
warn_limit = dft_warn_temp;
danger_limit = dft_danger_temp;
break;
}
if (temp >= danger_limit) {
state = TEMP_DANGER;
} else if (temp >= warn_limit) {
state = TEMP_WARN;
}
return (state);
}
static void
fhc_add_kstats(struct fhc_soft_state *softsp)
{
struct kstat *fhc_ksp;
struct fhc_kstat *fhc_named_ksp;
if ((fhc_ksp = kstat_create("unix", softsp->list->sc.board,
FHC_KSTAT_NAME, "misc", KSTAT_TYPE_NAMED,
sizeof (struct fhc_kstat) / sizeof (kstat_named_t),
KSTAT_FLAG_PERSISTENT)) == NULL) {
cmn_err(CE_WARN, "fhc%d kstat_create failed",
ddi_get_instance(softsp->dip));
return;
}
fhc_named_ksp = (struct fhc_kstat *)(fhc_ksp->ks_data);
/* initialize the named kstats */
kstat_named_init(&fhc_named_ksp->csr,
CSR_KSTAT_NAMED,
KSTAT_DATA_UINT32);
kstat_named_init(&fhc_named_ksp->bsr,
BSR_KSTAT_NAMED,
KSTAT_DATA_UINT32);
fhc_ksp->ks_update = fhc_kstat_update;
fhc_ksp->ks_private = (void *)softsp;
softsp->fhc_ksp = fhc_ksp;
kstat_install(fhc_ksp);
}
static int
fhc_kstat_update(kstat_t *ksp, int rw)
{
struct fhc_kstat *fhcksp;
struct fhc_soft_state *softsp;
fhcksp = (struct fhc_kstat *)ksp->ks_data;
softsp = (struct fhc_soft_state *)ksp->ks_private;
/* this is a read-only kstat. Bail out on a write */
if (rw == KSTAT_WRITE) {
return (EACCES);
} else {
/*
* copy the current state of the hardware into the
* kstat structure.
*/
fhcksp->csr.value.ui32 = *softsp->ctrl;
fhcksp->bsr.value.ui32 = *softsp->bsr;
}
return (0);
}
static int
cpu_on_board(int board)
{
int upa_a = board << 1;
int upa_b = (board << 1) + 1;
if ((cpunodes[upa_a].nodeid != NULL) ||
(cpunodes[upa_b].nodeid != NULL)) {
return (1);
} else {
return (0);
}
}
/*
* This function uses the board list and toggles the OS green board
* LED. The mask input tells which bit fields are being modified,
* and the value input tells the states of the bits.
*/
void
update_board_leds(fhc_bd_t *board, uint_t mask, uint_t value)
{
volatile uint_t temp;
ASSERT(fhc_bdlist_locked());
/* mask off mask and value for only the LED bits */
mask &= (FHC_LED_LEFT|FHC_LED_MID|FHC_LED_RIGHT);
value &= (FHC_LED_LEFT|FHC_LED_MID|FHC_LED_RIGHT);
if (board != NULL) {
mutex_enter(&board->softsp->ctrl_lock);
/* read the current register state */
temp = *board->softsp->ctrl;
/*
* The EPDA bits are special since the register is
* special. We don't want to set them, since setting
* the bits on a shutdown cpu keeps the cpu permanently
* powered off. Also, the CSR_SYNC bit must always be
* set to 0 as it is an OBP semaphore that is expected to
* be clear for cpu restart.
*/
temp &= ~(FHC_CSR_SYNC | FHC_EPDA_OFF | FHC_EPDB_OFF);
/* mask off the bits to change */
temp &= ~mask;
/* or in the new values of the bits. */
temp |= value;
/* update the register */
*board->softsp->ctrl = temp;
/* flush the hardware registers */
temp = *board->softsp->ctrl;
#ifdef lint
temp = temp;
#endif
mutex_exit(&board->softsp->ctrl_lock);
}
}
static int
check_for_chamber(void)
{
int chamber = 0;
dev_info_t *options_dip;
pnode_t options_node_id;
int mfgmode_len;
int retval;
char *mfgmode;
/*
* The operator can disable overtemp powerdown from /etc/system or
* boot -h.
*/
if (!enable_overtemp_powerdown) {
cmn_err(CE_WARN, "Operator has disabled overtemp powerdown");
return (1);
}
/*
* An OBP option, 'mfg-mode' is being used to inform us as to
* whether we are in an enviromental chamber. It exists in
* the 'options' node. This is where all OBP 'setenv' (eeprom)
* parameters live.
*/
if ((options_dip = ddi_find_devinfo("options", -1, 0)) != NULL) {
options_node_id = (pnode_t)ddi_get_nodeid(options_dip);
mfgmode_len = prom_getproplen(options_node_id, "mfg-mode");
if (mfgmode_len == -1) {
return (chamber);
}
mfgmode = kmem_alloc(mfgmode_len+1, KM_SLEEP);
retval = prom_getprop(options_node_id, "mfg-mode", mfgmode);
if (retval != -1) {
mfgmode[retval] = 0;
if (strcmp(mfgmode, CHAMBER_VALUE) == 0) {
chamber = 1;
cmn_err(CE_WARN, "System in Temperature"
" Chamber Mode. Overtemperature"
" Shutdown disabled");
}
}
kmem_free(mfgmode, mfgmode_len+1);
}
return (chamber);
}
static void
build_bd_display_str(char *buffer, enum board_type type, int board)
{
if (buffer == NULL) {
return;
}
/* fill in board type to display */
switch (type) {
case UNINIT_BOARD:
(void) sprintf(buffer, "Uninitialized Board type board %d",
board);
break;
case UNKNOWN_BOARD:
(void) sprintf(buffer, "Unknown Board type board %d", board);
break;
case CPU_BOARD:
case MEM_BOARD:
(void) sprintf(buffer, "CPU/Memory board %d", board);
break;
case IO_2SBUS_BOARD:
(void) sprintf(buffer, "2 SBus IO board %d", board);
break;
case IO_SBUS_FFB_BOARD:
(void) sprintf(buffer, "SBus FFB IO board %d", board);
break;
case IO_PCI_BOARD:
(void) sprintf(buffer, "PCI IO board %d", board);
break;
case CLOCK_BOARD:
(void) sprintf(buffer, "Clock board");
break;
case IO_2SBUS_SOCPLUS_BOARD:
(void) sprintf(buffer, "2 SBus SOC+ IO board %d", board);
break;
case IO_SBUS_FFB_SOCPLUS_BOARD:
(void) sprintf(buffer, "SBus FFB SOC+ IO board %d", board);
break;
default:
(void) sprintf(buffer, "Unrecognized board type board %d",
board);
break;
}
}
void
fhc_intrdist(void *arg)
{
struct fhc_soft_state *softsp;
dev_info_t *dip = (dev_info_t *)arg;
volatile uint_t *mondo_vec_reg;
volatile uint_t *intr_state_reg;
uint_t mondo_vec;
uint_t tmp_reg;
uint_t cpu_id;
uint_t i;
/* extract the soft state pointer */
softsp = ddi_get_soft_state(fhcp, ddi_get_instance(dip));
/*
* Loop through all the interrupt mapping registers and reprogram
* the target CPU for all valid registers.
*/
for (i = 0; i < FHC_MAX_INO; i++) {
mondo_vec_reg = softsp->intr_regs[i].mapping_reg;
intr_state_reg = softsp->intr_regs[i].clear_reg;
if ((*mondo_vec_reg & IMR_VALID) == 0)
continue;
cpu_id = intr_dist_cpuid();
/* Check the current target of the mondo */
if (((*mondo_vec_reg & INR_PID_MASK) >> INR_PID_SHIFT) ==
cpu_id) {
/* It is the same, don't reprogram */
return;
}
/* So it's OK to reprogram the CPU target */
/* turn off the valid bit */
*mondo_vec_reg &= ~IMR_VALID;
/* flush the hardware registers */
tmp_reg = *softsp->id;
/*
* wait for the state machine to idle. Do not loop on panic, so
* that system does not hang.
*/
while (((*intr_state_reg & INT_PENDING) == INT_PENDING) &&
!panicstr)
;
/* re-target the mondo and turn it on */
mondo_vec = (cpu_id << INR_PID_SHIFT) | IMR_VALID;
/* write it back to the hardware. */
*mondo_vec_reg = mondo_vec;
/* flush the hardware buffers. */
tmp_reg = *(softsp->id);
#ifdef lint
tmp_reg = tmp_reg;
#endif /* lint */
}
}
/*
* reg_fault
*
* This routine registers a fault in the fault list. If the fault
* is unique (does not exist in fault list) then a new fault is
* added to the fault list, with the appropriate structure elements
* filled in.
*/
void
reg_fault(int unit, enum ft_type type, enum ft_class fclass)
{
struct ft_link_list *list; /* temporary list pointer */
if (type >= ft_max_index) {
cmn_err(CE_WARN, "Illegal Fault type %x", type);
return;
}
mutex_enter(&ftlist_mutex);
/* Search for the requested fault. If it already exists, return. */
for (list = ft_list; list != NULL; list = list->next) {
if ((list->f.unit == unit) && (list->f.type == type) &&
(list->f.fclass == fclass)) {
mutex_exit(&ftlist_mutex);
return;
}
}
/* Allocate a new fault structure. */
list = kmem_zalloc(sizeof (struct ft_link_list), KM_SLEEP);
/* fill in the fault list elements */
list->f.unit = unit;
list->f.type = type;
list->f.fclass = fclass;
list->f.create_time = (time32_t)gethrestime_sec(); /* XX64 */
(void) strncpy(list->f.msg, ft_str_table[type], MAX_FT_DESC);
/* link it into the list. */
list->next = ft_list;
ft_list = list;
/* Update the total fault count */
ft_nfaults++;
mutex_exit(&ftlist_mutex);
}
/*
* clear_fault
*
* This routine finds the fault list entry specified by the caller,
* deletes it from the fault list, and frees up the memory used for
* the entry. If the requested fault is not found, it exits silently.
*/
void
clear_fault(int unit, enum ft_type type, enum ft_class fclass)
{
struct ft_link_list *list; /* temporary list pointer */
struct ft_link_list **vect;
mutex_enter(&ftlist_mutex);
list = ft_list;
vect = &ft_list;
/*
* Search for the requested fault. If it exists, delete it
* and relink the fault list.
*/
for (; list != NULL; vect = &list->next, list = list->next) {
if ((list->f.unit == unit) && (list->f.type == type) &&
(list->f.fclass == fclass)) {
/* remove the item from the list */
*vect = list->next;
/* free the memory allocated */
kmem_free(list, sizeof (struct ft_link_list));
/* Update the total fault count */
ft_nfaults--;
break;
}
}
mutex_exit(&ftlist_mutex);
}
/*
* process_fault_list
*
* This routine walks the global fault list and updates the board list
* with the current status of each Yellow LED. If any faults are found
* in the system, then a non-zero value is returned. Else zero is returned.
*/
int
process_fault_list(void)
{
int fault = 0;
struct ft_link_list *ftlist; /* fault list pointer */
fhc_bd_t *bdlist; /* board list pointer */
/*
* Note on locking. The bdlist mutex is always acquired and
* held around the ftlist mutex when both are needed for an
* operation. This is to avoid deadlock.
*/
/* First lock the board list */
(void) fhc_bdlist_lock(-1);
/* Grab the fault list lock first */
mutex_enter(&ftlist_mutex);
/* clear the board list of all faults first */
for (bdlist = fhc_bd_first(); bdlist; bdlist = fhc_bd_next(bdlist))
bdlist->fault = 0;
/* walk the fault list here */
for (ftlist = ft_list; ftlist != NULL; ftlist = ftlist->next) {
fault++;
/*
* If this is a board level fault, find the board, The
* unit number for all board class faults must be the
* actual board number. The caller of reg_fault must
* ensure this for FT_BOARD class faults.
*/
if (ftlist->f.fclass == FT_BOARD) {
/* Sanity check the board first */
if (fhc_bd_valid(ftlist->f.unit)) {
bdlist = fhc_bd(ftlist->f.unit);
bdlist->fault = 1;
} else {
cmn_err(CE_WARN, "No board %d list entry found",
ftlist->f.unit);
}
}
}
/* now unlock the fault list */
mutex_exit(&ftlist_mutex);
/* unlock the board list before leaving */
fhc_bdlist_unlock();
return (fault);
}
/*
* Add a new memloc to the database (and keep 'em sorted by PA)
*/
void
fhc_add_memloc(int board, uint64_t pa, uint_t size)
{
struct fhc_memloc *p, **pp;
uint_t ipa = pa >> FHC_MEMLOC_SHIFT;
ASSERT(fhc_bdlist_locked());
ASSERT((size & (size-1)) == 0); /* size must be power of 2 */
/* look for a comparable memloc (as long as new PA smaller) */
for (p = fhc_base_memloc, pp = &fhc_base_memloc;
p != NULL; pp = &p->next, p = p->next) {
/* have we passed our place in the sort? */
if (ipa < p->pa) {
break;
}
}
p = kmem_alloc(sizeof (struct fhc_memloc), KM_SLEEP);
p->next = *pp;
p->board = board;
p->pa = ipa;
p->size = size;
#ifdef DEBUG_MEMDEC
cmn_err(CE_NOTE, "fhc_add_memloc: adding %d 0x%x 0x%x",
p->board, p->pa, p->size);
#endif /* DEBUG_MEMDEC */
*pp = p;
}
/*
* Delete all memloc records for a board from the database
*/
void
fhc_del_memloc(int board)
{
struct fhc_memloc *p, **pp;
ASSERT(fhc_bdlist_locked());
/* delete all entries that match board */
pp = &fhc_base_memloc;
while ((p = *pp) != NULL) {
if (p->board == board) {
#ifdef DEBUG_MEMDEC
cmn_err(CE_NOTE, "fhc_del_memloc: removing %d "
"0x%x 0x%x", board, p->pa, p->size);
#endif /* DEBUG_MEMDEC */
*pp = p->next;
kmem_free(p, sizeof (struct fhc_memloc));
} else {
pp = &(p->next);
}
}
}
/*
* Find a physical address range of sufficient size and return a starting PA
*/
uint64_t
fhc_find_memloc_gap(uint_t size)
{
struct fhc_memloc *p;
uint_t base_pa = 0;
uint_t mask = ~(size-1);
ASSERT(fhc_bdlist_locked());
ASSERT((size & (size-1)) == 0); /* size must be power of 2 */
/*
* walk the list of known memlocs and measure the 'gaps'.
* we will need a hole that can align the 'size' requested.
* (e.g. a 256mb bank needs to be on a 256mb boundary).
*/
for (p = fhc_base_memloc; p != NULL; p = p->next) {
if (base_pa != (base_pa & mask))
base_pa = (base_pa + size) & mask;
if (base_pa + size <= p->pa)
break;
base_pa = p->pa + p->size;
}
/*
* At this point, we assume that base_pa is good enough.
*/
ASSERT((base_pa + size) <= FHC_MEMLOC_MAX);
if (base_pa != (base_pa & mask))
base_pa = (base_pa + size) & mask; /* align */
return ((uint64_t)base_pa << FHC_MEMLOC_SHIFT);
}
/*
* This simple function to write the MCRs can only be used when
* the contents of memory are not valid as there is a bug in the AC
* ASIC concerning refresh.
*/
static void
fhc_write_mcrs(
uint64_t cpa,
uint64_t dpa0,
uint64_t dpa1,
uint64_t c,
uint64_t d0,
uint64_t d1)
{
stdphysio(cpa, c & ~AC_CSR_REFEN);
(void) lddphysio(cpa);
if (GRP_SIZE_IS_SET(d0)) {
stdphysio(dpa0, d0);
(void) lddphysio(dpa0);
}
if (GRP_SIZE_IS_SET(d1)) {
stdphysio(dpa1, d1);
(void) lddphysio(dpa1);
}
stdphysio(cpa, c);
(void) lddphysio(cpa);
}
/* compute the appropriate RASIZE for bank size */
static uint_t
fhc_cvt_size(uint64_t bsz)
{
uint_t csz;
csz = 0;
bsz /= 64;
while (bsz) {
csz++;
bsz /= 2;
}
csz /= 2;
return (csz);
}
void
fhc_program_memory(int board, uint64_t pa)
{
uint64_t cpa, dpa0, dpa1;
uint64_t c, d0, d1;
uint64_t b0_pa, b1_pa;
uint64_t memdec0, memdec1;
uint_t b0_size, b1_size;
/* XXX gross hack to get to board via board number */
cpa = 0x1c0f9000060ull + (board * 0x400000000ull);
#ifdef DEBUG_MEMDEC
prom_printf("cpa = 0x%llx\n", cpa);
#endif /* DEBUG_MEMDEC */
dpa0 = cpa + 0x10;
dpa1 = cpa + 0x20;
/* assume size is set by connect */
memdec0 = lddphysio(dpa0);
#ifdef DEBUG_MEMDEC
prom_printf("memdec0 = 0x%llx\n", memdec0);
#endif /* DEBUG_MEMDEC */
memdec1 = lddphysio(dpa1);
#ifdef DEBUG_MEMDEC
prom_printf("memdec1 = 0x%llx\n", memdec1);
#endif /* DEBUG_MEMDEC */
if (GRP_SIZE_IS_SET(memdec0)) {
b0_size = GRP_SPANMB(memdec0);
} else {
b0_size = 0;
}
if (GRP_SIZE_IS_SET(memdec1)) {
b1_size = GRP_SPANMB(memdec1);
} else {
b1_size = 0;
}
c = lddphysio(cpa);
#ifdef DEBUG_MEMDEC
prom_printf("c = 0x%llx\n", c);
#endif /* DEBUG_MEMDEC */
if (b0_size) {
b0_pa = pa;
d0 = SETUP_DECODE(b0_pa, b0_size, 0, 0);
d0 |= AC_MEM_VALID;
c &= ~0x7;
c |= 0;
c &= ~(0x7 << 8);
c |= (fhc_cvt_size(b0_size) << 8); /* match row size */
} else {
d0 = memdec0;
}
if (b1_size) {
b1_pa = pa + 0x80000000ull; /* XXX 2gb */
d1 = SETUP_DECODE(b1_pa, b1_size, 0, 0);
d1 |= AC_MEM_VALID;
c &= ~(0x7 << 3);
c |= (0 << 3);
c &= ~(0x7 << 11);
c |= (fhc_cvt_size(b1_size) << 11); /* match row size */
} else {
d1 = memdec1;
}
#ifdef DEBUG_MEMDEC
prom_printf("c 0x%llx, d0 0x%llx, d1 0x%llx\n", c, d0, d1);
#endif /* DEBUG_MEMDEC */
fhc_write_mcrs(cpa, dpa0, dpa1, c, d0, d1);
}
/*
* Creates a variable sized virtual kstat with a snapshot routine in order
* to pass the linked list fault list up to userland. Also creates a
* virtual kstat to pass up the string table for faults.
*/
void
create_ft_kstats(int instance)
{
struct kstat *ksp;
ksp = kstat_create("unix", instance, FT_LIST_KSTAT_NAME, "misc",
KSTAT_TYPE_RAW, 1, KSTAT_FLAG_VIRTUAL|KSTAT_FLAG_VAR_SIZE);
if (ksp != NULL) {
ksp->ks_data = NULL;
ksp->ks_update = ft_ks_update;
ksp->ks_snapshot = ft_ks_snapshot;
ksp->ks_data_size = 1;
ksp->ks_lock = &ftlist_mutex;
kstat_install(ksp);
}
}
/*
* This routine creates a snapshot of all the fault list data. It is
* called by the kstat framework when a kstat read is done.
*/
static int
ft_ks_snapshot(struct kstat *ksp, void *buf, int rw)
{
struct ft_link_list *ftlist;
if (rw == KSTAT_WRITE) {
return (EACCES);
}
ksp->ks_snaptime = gethrtime();
for (ftlist = ft_list; ftlist != NULL; ftlist = ftlist->next) {
bcopy(&ftlist->f, buf, sizeof (struct ft_list));
buf = ((struct ft_list *)buf) + 1;
}
return (0);
}
/*
* Setup the kstat data size for the kstat framework. This is used in
* conjunction with the ks_snapshot routine. This routine sets the size,
* the kstat framework allocates the memory, and ks_shapshot does the
* data transfer.
*/
static int
ft_ks_update(struct kstat *ksp, int rw)
{
if (rw == KSTAT_WRITE) {
return (EACCES);
} else {
if (ft_nfaults) {
ksp->ks_data_size = ft_nfaults *
sizeof (struct ft_list);
} else {
ksp->ks_data_size = 1;
}
}
return (0);
}
/*
* Power off any cpus on the board.
*/
int
fhc_board_poweroffcpus(int board, char *errbuf, int cpu_flags)
{
cpu_t *cpa, *cpb;
enum board_type type;
int error = 0;
ASSERT(MUTEX_HELD(&cpu_lock));
/*
* what type of board are we dealing with?
*/
type = fhc_bd_type(board);
switch (type) {
case CPU_BOARD:
/*
* the shutdown sequence will be:
*
* idle both cpus then shut them off.
* it looks like the hardware gets corrupted if one
* cpu is busy while the other is shutting down...
*/
if ((cpa = cpu_get(FHC_BOARD2CPU_A(board))) != NULL &&
cpu_is_active(cpa)) {
if (!cpu_intr_on(cpa)) {
cpu_intr_enable(cpa);
}
if ((error = cpu_offline(cpa, cpu_flags)) != 0) {
cmn_err(CE_WARN,
"Processor %d failed to offline.",
cpa->cpu_id);
if (errbuf != NULL) {
(void) snprintf(errbuf, SYSC_OUTPUT_LEN,
"processor %d failed to offline",
cpa->cpu_id);
}
}
}
if (error == 0 &&
(cpb = cpu_get(FHC_BOARD2CPU_B(board))) != NULL &&
cpu_is_active(cpb)) {
if (!cpu_intr_on(cpb)) {
cpu_intr_enable(cpb);
}
if ((error = cpu_offline(cpb, cpu_flags)) != 0) {
cmn_err(CE_WARN,
"Processor %d failed to offline.",
cpb->cpu_id);
if (errbuf != NULL) {
(void) snprintf(errbuf, SYSC_OUTPUT_LEN,
"processor %d failed to offline",
cpb->cpu_id);
}
}
}
if (error == 0 && cpa != NULL && cpu_is_offline(cpa)) {
if ((error = cpu_poweroff(cpa)) != 0) {
cmn_err(CE_WARN,
"Processor %d failed to power off.",
cpa->cpu_id);
if (errbuf != NULL) {
(void) snprintf(errbuf, SYSC_OUTPUT_LEN,
"processor %d failed to power off",
cpa->cpu_id);
}
} else {
cmn_err(CE_NOTE, "Processor %d powered off.",
cpa->cpu_id);
}
}
if (error == 0 && cpb != NULL && cpu_is_offline(cpb)) {
if ((error = cpu_poweroff(cpb)) != 0) {
cmn_err(CE_WARN,
"Processor %d failed to power off.",
cpb->cpu_id);
if (errbuf != NULL) {
(void) snprintf(errbuf, SYSC_OUTPUT_LEN,
"processor %d failed to power off",
cpb->cpu_id);
}
} else {
cmn_err(CE_NOTE, "Processor %d powered off.",
cpb->cpu_id);
}
}
/*
* If all the shutdowns completed, ONLY THEN, clear the
* incorrectly valid dtags...
*
* IMPORTANT: it is an error to read or write dtags while
* they are 'active'
*/
if (error == 0 && (cpa != NULL || cpb != NULL)) {
u_longlong_t base = 0;
int i;
#ifdef DEBUG
int nonz0 = 0;
int nonz1 = 0;
#endif
if (cpa != NULL)
base = FHC_DTAG_BASE(cpa->cpu_id);
if (cpb != NULL)
base = FHC_DTAG_BASE(cpb->cpu_id);
ASSERT(base != 0);
for (i = 0; i < FHC_DTAG_SIZE; i += FHC_DTAG_SKIP) {
u_longlong_t value = lddphysio(base+i);
#ifdef lint
value = value;
#endif
#ifdef DEBUG
if (cpa != NULL && (value & FHC_DTAG_LOW))
nonz0++;
if (cpb != NULL && (value & FHC_DTAG_HIGH))
nonz1++;
#endif
/* always clear the dtags */
stdphysio(base + i, 0ull);
}
#ifdef DEBUG
if (nonz0 || nonz1) {
cmn_err(CE_NOTE, "!dtag results: "
"cpua valid %d, cpub valid %d",
nonz0, nonz1);
}
#endif
}
break;
default:
break;
}
return (error);
}
/*
* platform code for shutting down cpus.
*/
int
fhc_cpu_poweroff(struct cpu *cp)
{
int board;
fhc_bd_t *bd_list;
int delays;
extern void idle_stop_xcall(void);
static void fhc_cpu_shutdown_self(void);
ASSERT(MUTEX_HELD(&cpu_lock));
ASSERT((cp->cpu_flags & (CPU_EXISTS | CPU_OFFLINE | CPU_QUIESCED)) ==
(CPU_EXISTS | CPU_OFFLINE | CPU_QUIESCED));
/*
* Lock the board so that we can safely access the
* registers. This cannot be done inside the pause_cpus().
*/
board = FHC_CPU2BOARD(cp->cpu_id);
bd_list = fhc_bdlist_lock(board);
ASSERT(fhc_bd_valid(board) && (bd_list->sc.type == CPU_BOARD));
/*
* Capture all CPUs (except for detaching proc) to prevent
* crosscalls to the detaching proc until it has cleared its
* bit in cpu_ready_set.
*
* The CPU's remain paused and the prom_mutex is known to be free.
* This prevents the x-trap victim from blocking when doing prom
* IEEE-1275 calls at a high PIL level.
*/
promsafe_pause_cpus();
/*
* Quiesce interrupts on the target CPU. We do this by setting
* the CPU 'not ready'- (i.e. removing the CPU from cpu_ready_set) to
* prevent it from receiving cross calls and cross traps.
* This prevents the processor from receiving any new soft interrupts.
*/
mp_cpu_quiesce(cp);
xt_one_unchecked(cp->cpu_id, (xcfunc_t *)idle_stop_xcall,
(uint64_t)fhc_cpu_shutdown_self, (uint64_t)NULL);
/*
* Wait for slave cpu to shutdown.
* Sense this by watching the hardware EPDx bit.
*/
for (delays = FHC_SHUTDOWN_WAIT_MSEC; delays != 0; delays--) {
uint_t temp;
DELAY(1000);
/* get the current cpu power status */
temp = *bd_list->softsp->ctrl;
/* has the cpu actually signalled shutdown? */
if (FHC_CPU_IS_A(cp->cpu_id)) {
if (temp & FHC_EPDA_OFF)
break;
} else {
if (temp & FHC_EPDB_OFF)
break;
}
}
start_cpus();
fhc_bdlist_unlock();
/* A timeout means we've lost control of the cpu. */
if (delays == 0)
panic("Processor %d failed during shutdown", cp->cpu_id);
return (0);
}
/*
* shutdown_self
* slave side shutdown. clean up and execute the shutdown sequence.
*/
static void
fhc_cpu_shutdown_self(void)
{
extern void flush_windows(void);
static void os_completes_shutdown(void);
flush_windows();
ASSERT(CPU->cpu_intr_actv == 0);
ASSERT(CPU->cpu_thread == CPU->cpu_idle_thread ||
CPU->cpu_thread == CPU->cpu_startup_thread);
CPU->cpu_flags = CPU_POWEROFF | CPU_OFFLINE | CPU_QUIESCED;
(void) prom_sunfire_cpu_off(); /* inform Ultra Enterprise prom */
os_completes_shutdown();
panic("fhc_cpu_shutdown_self: cannot return");
/*NOTREACHED*/
}
/*
* Warm start CPU.
*/
static int
fhc_cpu_start(struct cpu *cp)
{
int rv;
int cpuid = cp->cpu_id;
pnode_t nodeid;
extern void restart_other_cpu(int);
ASSERT(MUTEX_HELD(&cpu_lock));
/* power on cpu */
nodeid = cpunodes[cpuid].nodeid;
ASSERT(nodeid != (pnode_t)0);
rv = prom_wakeupcpu(nodeid);
if (rv != 0) {
cmn_err(CE_WARN, "Processor %d failed to power on.", cpuid);
return (EBUSY);
}
cp->cpu_flags &= ~CPU_POWEROFF;
/*
* NOTE: restart_other_cpu pauses cpus during the slave cpu start.
* This helps to quiesce the bus traffic a bit which makes
* the tick sync routine in the prom more robust.
*/
restart_other_cpu(cpuid);
return (0);
}
/*
* Power on CPU.
*/
int
fhc_cpu_poweron(struct cpu *cp)
{
fhc_bd_t *bd_list;
enum temp_state state;
int board;
int status;
int status_other;
struct cpu *cp_other;
ASSERT(MUTEX_HELD(&cpu_lock));
ASSERT(cpu_is_poweredoff(cp));
/* do not power on overtemperature cpu */
board = FHC_CPU2BOARD(cp->cpu_id);
bd_list = fhc_bdlist_lock(board);
ASSERT(bd_list != NULL);
ASSERT(bd_list->sc.type == CPU_BOARD);
ASSERT(bd_list->dev_softsp != NULL);
state = ((struct environ_soft_state *)
bd_list->dev_softsp)->tempstat.state;
fhc_bdlist_unlock();
if ((state == TEMP_WARN) || (state == TEMP_DANGER))
return (EBUSY);
status = fhc_cpu_start(cp);
/* policy for dual cpu boards */
if ((status == 0) &&
((cp_other = cpu_get(FHC_OTHER_CPU_ID(cp->cpu_id))) != NULL)) {
/*
* Do not leave board's other cpu idling in the prom.
* Start the other cpu and set its state to P_OFFLINE.
*/
status_other = fhc_cpu_start(cp_other);
if (status_other != 0) {
panic("fhc: failed to start second CPU"
" in pair %d & %d, error %d",
cp->cpu_id, cp_other->cpu_id, status_other);
}
}
return (status);
}
/*
* complete the shutdown sequence in case the firmware doesn't.
*
* If the firmware returns, then complete the shutdown code.
* (sunfire firmware presently only updates its status. the
* OS must flush the D-tags and execute the shutdown instruction.)
*/
static void
os_completes_shutdown(void)
{
pfn_t pfn;
tte_t tte;
volatile uint_t *src;
volatile uint_t *dst;
caddr_t copy_addr;
extern void fhc_shutdown_asm(u_longlong_t, int);
extern void fhc_shutdown_asm_end(void);
copy_addr = shutdown_va + FHC_SRAM_OS_OFFSET;
/* compute sram global address for this operation */
pfn = FHC_LOCAL_OS_PAGEBASE >> MMU_PAGESHIFT;
/* force load i and d translations */
tte.tte_inthi = TTE_VALID_INT | TTE_SZ_INT(TTE8K) |
TTE_PFN_INTHI(pfn);
tte.tte_intlo = TTE_PFN_INTLO(pfn) |
TTE_HWWR_INT | TTE_PRIV_INT | TTE_LCK_INT; /* un$ */
sfmmu_dtlb_ld_kva(shutdown_va, &tte); /* load dtlb */
sfmmu_itlb_ld_kva(shutdown_va, &tte); /* load itlb */
/*
* copy the special shutdown function to sram
* (this is a special integer copy that synchronizes with localspace
* accesses. we need special throttling to ensure copy integrity)
*/
for (src = (uint_t *)fhc_shutdown_asm, dst = (uint_t *)copy_addr;
src < (uint_t *)fhc_shutdown_asm_end;
src++, dst++) {
volatile uint_t dummy;
*dst = *src;
/*
* ensure non corrupting single write operations to
* localspace sram by interleaving reads with writes.
*/
dummy = *dst;
#ifdef lint
dummy = dummy;
#endif
}
/*
* Call the shutdown sequencer.
* NOTE: the base flush address must be unique for each MID.
*/
((void (*)(u_longlong_t, int))copy_addr)(
FHC_BASE_NOMEM + CPU->cpu_id * FHC_MAX_ECACHE_SIZE,
cpunodes[CPU->cpu_id].ecache_size);
}
enum temp_state
fhc_env_temp_state(int board)
{
fhc_bd_t *bdp;
struct environ_soft_state *envp;
ASSERT(fhc_bd_valid(board));
bdp = fhc_bd(board);
/*
* Due to asynchronous attach of environ, environ may
* not be attached by the time we start calling this routine
* to check the temperature state. Environ not attaching is
* pathological so this will only cover the time between
* board connect and environ attach.
*/
if (!bdp->dev_softsp) {
return (TEMP_OK);
}
envp = (struct environ_soft_state *)bdp->dev_softsp;
return (envp->tempstat.state);
}
static void
fhc_tod_fault(enum tod_fault_type tod_bad)
{
int board_num = 0;
enum ft_class class = FT_SYSTEM;
uint64_t addr;
addr = (va_to_pa((void *)v_eeprom_addr)) >> BOARD_PHYADDR_SHIFT;
if ((addr & CLOCKBOARD_PHYADDR_BITS) != CLOCKBOARD_PHYADDR_BITS) {
/* if tod is not on clock board, */
/* it'd be on one of io boards */
board_num = (addr >> IO_BOARD_NUMBER_SHIFT)
& IO_BOARD_NUMBER_MASK;
class = FT_BOARD;
}
switch (tod_bad) {
case TOD_NOFAULT:
clear_fault(board_num, FT_TODFAULT, class);
break;
case TOD_REVERSED:
case TOD_STALLED:
case TOD_JUMPED:
case TOD_RATECHANGED:
reg_fault(board_num, FT_TODFAULT, class);
break;
default:
break;
}
}