/*
* Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <string.h>
#include <vm/vm_page.h>
#include <vm/pmap.h>
#include <vm/vm_kern.h>
-#include <i386/pmap.h>
-#include <i386/misc_protos.h>
#include <i386/cpuid.h>
-#include <i386/mp.h>
#include <i386/machine_cpu.h>
+#include <i386/mp.h>
#include <i386/machine_routines.h>
+#include <i386/pmap.h>
+#include <i386/misc_protos.h>
#include <i386/io_map_entries.h>
#include <architecture/i386/pio.h>
#include <i386/cpuid.h>
#include <i386/tsc.h>
#include <i386/hpet.h>
#include <i386/pmCPU.h>
+#include <i386/cpu_topology.h>
+#include <i386/cpu_threads.h>
#include <pexpert/device_tree.h>
-#if MACH_KDB
-#include <ddb/db_aout.h>
-#include <ddb/db_access.h>
-#include <ddb/db_sym.h>
-#include <ddb/db_variables.h>
-#include <ddb/db_command.h>
-#include <ddb/db_output.h>
-#include <ddb/db_expr.h>
-#endif /* MACH_KDB */
-#include <ddb/tr.h>
/* Decimal powers: */
#define kilo (1000ULL)
#define Tera (kilo * Giga)
#define Peta (kilo * Tera)
-uint32_t hpetArea = 0;
+vm_offset_t hpetArea = 0;
uint32_t hpetAreap = 0;
uint64_t hpetFemto = 0;
uint64_t hpetFreq = 0;
uint64_t bus2hpet = 0;
uint64_t hpet2bus = 0;
-uint32_t rcbaArea = 0;
+vm_offset_t rcbaArea = 0;
uint32_t rcbaAreap = 0;
+static int (*hpet_req)(uint32_t apicid, void *arg, hpetRequest_t *hpet) = NULL;
+static void *hpet_arg = NULL;
+
#if DEBUG
#define DBG(x...) kprintf("DBG: " x)
#else
#define DBG(x...)
#endif
+int
+hpet_register_callback(int (*hpet_reqst)(uint32_t apicid,
+ void *arg,
+ hpetRequest_t *hpet),
+ void *arg)
+{
+ hpet_req = hpet_reqst;
+ hpet_arg = arg;
+ return(0);
+}
+
+/*
+ * This routine is called to obtain an HPET and have it assigned
+ * to a CPU. It returns 0 if successful and non-zero if one could
+ * not be assigned.
+ */
+int
+hpet_request(uint32_t cpu)
+{
+ hpetRequest_t hpetReq;
+ int rc;
+ x86_lcpu_t *lcpu;
+ x86_core_t *core;
+ x86_pkg_t *pkg;
+ boolean_t enabled;
+
+ if (hpet_req == NULL) {
+ return(-1);
+ }
+
+ /*
+ * Deal with the case where the CPU # passed in is past the
+ * value specified in cpus=n in boot-args.
+ */
+ if (cpu >= real_ncpus) {
+ enabled = ml_set_interrupts_enabled(FALSE);
+ lcpu = cpu_to_lcpu(cpu);
+ if (lcpu != NULL) {
+ core = lcpu->core;
+ pkg = core->package;
+
+ if (lcpu->primary) {
+ pkg->flags |= X86PKG_FL_HAS_HPET;
+ }
+ }
+
+ ml_set_interrupts_enabled(enabled);
+ return(0);
+ }
+
+ rc = (*hpet_req)(ml_get_apicid(cpu), hpet_arg, &hpetReq);
+ if (rc != 0) {
+ return(rc);
+ }
+
+ enabled = ml_set_interrupts_enabled(FALSE);
+ lcpu = cpu_to_lcpu(cpu);
+ core = lcpu->core;
+ pkg = core->package;
+
+ /*
+ * Compute the address of the HPET.
+ */
+ core->Hpet = (hpetTimer_t *)((uint8_t *)hpetArea + hpetReq.hpetOffset);
+ core->HpetVec = hpetReq.hpetVector;
+
+ /*
+ * Enable interrupts
+ */
+ core->Hpet->Config |= Tn_INT_ENB_CNF;
+
+ /*
+ * Save the configuration
+ */
+ core->HpetCfg = core->Hpet->Config;
+ core->HpetCmp = 0;
+
+ /*
+ * If the CPU is the "primary" for the package, then
+ * add the HPET to the package too.
+ */
+ if (lcpu->primary) {
+ pkg->Hpet = core->Hpet;
+ pkg->HpetCfg = core->HpetCfg;
+ pkg->HpetCmp = core->HpetCmp;
+ pkg->flags |= X86PKG_FL_HAS_HPET;
+ }
+
+ ml_set_interrupts_enabled(enabled);
+
+ return(0);
+}
+
/*
* Map the RCBA area.
*/
outl(cfgAdr, lpcCfg | (0xF0 & 0xFC));
rcbaAreap = inl(cfgDat | (0xF0 & 0x03));
rcbaArea = io_map_spec(rcbaAreap & -4096, PAGE_SIZE * 4, VM_WIMG_IO);
- kprintf("RCBA: vaddr = %08X, paddr = %08X\n", rcbaArea, rcbaAreap);
+ kprintf("RCBA: vaddr = %lX, paddr = %08X\n", (unsigned long)rcbaArea, rcbaAreap);
}
/*
hpet_init(void)
{
unsigned int *xmod;
- uint64_t now;
- uint64_t initialHPET;
map_rcbaArea();
*/
hpetAreap = hpetAddr | ((hptc & 3) << 12);
hpetArea = io_map_spec(hpetAreap & -4096, PAGE_SIZE * 4, VM_WIMG_IO);
- kprintf("HPET: vaddr = %08X, paddr = %08X\n", hpetArea, hpetAreap);
+ kprintf("HPET: vaddr = %lX, paddr = %08X\n", (unsigned long)hpetArea, hpetAreap);
/*
* Extract the HPET tick rate.
hpet2bus = tmrCvt(hpetCvtt2n, busFCvtn2t);
DBG(" CVT: HPET to BUS = %08X.%08X\n",
(uint32_t)(hpet2bus >> 32), (uint32_t)hpet2bus);
-
- /* Make sure the counter is off in the HPET configuration flags */
- uint64_t hpetcon = ((hpetReg_t *)hpetArea)->GEN_CONF;
- hpetcon = hpetcon & ~1;
- ((hpetReg_t *)hpetArea)->GEN_CONF = hpetcon;
-
- /*
- * Convert current TSC to HPET value,
- * set it, and start it ticking.
- */
- now = mach_absolute_time();
- initialHPET = tmrCvt(now, hpetCvtn2t);
- ((hpetReg_t *)hpetArea)->MAIN_CNT = initialHPET;
- hpetcon = hpetcon | 1;
- ((hpetReg_t *)hpetArea)->GEN_CONF = hpetcon;
- kprintf("HPET started: now = %08X.%08X, HPET = %08X.%08X\n",
- (uint32_t)(now >> 32), (uint32_t)now,
- (uint32_t)(initialHPET >> 32), (uint32_t)initialHPET);
-
-#if MACH_KDB
- db_display_hpet((hpetReg_t *)hpetArea); /* (BRINGUP) */
-#endif
}
/*
info->hpet2tsc = hpet2tsc;
info->bus2hpet = bus2hpet;
info->hpet2bus = hpet2bus;
- info->rcbaArea = rcbaArea;
- info->rcbaAreap = rcbaAreap;
+ /*
+ * XXX
+ * We're repurposing the rcbaArea so we can use the HPET.
+ * Eventually we'll rename this correctly.
+ */
+ info->rcbaArea = hpetArea;
+ info->rcbaAreap = hpetAreap;
}
/*
* This routine is called by the HPET driver
- * when it assigns an HPET timer to a processor
+ * when it assigns an HPET timer to a processor.
+ *
+ * XXX with the new callback into the HPET driver,
+ * this routine will be deprecated.
*/
-
void
ml_hpet_cfg(uint32_t cpu, uint32_t hpetVect)
{
- uint64_t *hpetVaddr;
- uint64_t hpetcnf;
+ uint64_t *hpetVaddr;
+ hpetTimer_t *hpet;
+ x86_lcpu_t *lcpu;
+ x86_core_t *core;
+ x86_pkg_t *pkg;
+ boolean_t enabled;
if(cpu > 1) {
panic("ml_hpet_cfg: invalid cpu = %d\n", cpu);
}
+ lcpu = cpu_to_lcpu(cpu);
+ core = lcpu->core;
+ pkg = core->package;
+
+ /*
+ * Only deal with the primary CPU for the package.
+ */
+ if (!lcpu->primary)
+ return;
+
+ enabled = ml_set_interrupts_enabled(FALSE);
+
/* Calculate address of the HPET for this processor */
- hpetVaddr = (uint64_t *)(((uint32_t)&(((hpetReg_t *)hpetArea)->TIM1_CONF)) + (cpu << 5));
+ hpetVaddr = (uint64_t *)(((uintptr_t)&(((hpetReg_t *)hpetArea)->TIM1_CONF)) + (cpu << 5));
+ hpet = (hpetTimer_t *)hpetVaddr;
- DBG("ml_hpet_cfg: HPET for cpu %d at %08X, vector = %d\n",
+ DBG("ml_hpet_cfg: HPET for cpu %d at %p, vector = %d\n",
cpu, hpetVaddr, hpetVect);
-
+
/* Save the address and vector of the HPET for this processor */
- cpu_data_ptr[cpu]->cpu_pmHpet = (uint64_t *)hpetVaddr;
- cpu_data_ptr[cpu]->cpu_pmHpetVec = hpetVect;
+ core->Hpet = hpet;
+ core->HpetVec = hpetVect;
- /* Enable the interruptions now that we have a vector */
- hpetcnf = *hpetVaddr;
- hpetcnf = hpetcnf | Tn_INT_ENB_CNF;
- *hpetVaddr = hpetcnf;
+ /*
+ * Enable interrupts
+ */
+ core->Hpet->Config |= Tn_INT_ENB_CNF;
/* Save the configuration */
- cpu_data_ptr[cpu]->cpu_pmStats.pmHpetCfg = hpetcnf;
- cpu_data_ptr[cpu]->cpu_pmStats.pmHpetCmp = 0;
+ core->HpetCfg = core->Hpet->Config;
+ core->HpetCmp = 0;
- /* See if nap policy has changed now */
- machine_nap_policy();
+ /*
+ * We're only doing this for the primary CPU, so go
+ * ahead and add the HPET to the package too.
+ */
+ pkg->Hpet = core->Hpet;
+ pkg->HpetVec = core->HpetVec;
+ pkg->HpetCfg = core->HpetCfg;
+ pkg->HpetCmp = core->HpetCmp;
+ pkg->flags |= X86PKG_FL_HAS_HPET;
+ ml_set_interrupts_enabled(enabled);
}
/*
* This is the HPET interrupt handler.
*
- * We really don't want to be here, but so far, I haven't figured out
- * a way to cancel the interrupt. Hopefully, some day we will figure out
- * how to do that or switch all timers to the HPET.
+ * It just hands off to the power management code so that the
+ * appropriate things get done there.
*/
int
HPETInterrupt(void)
{
/* All we do here is to bump the count */
- current_cpu_datap()->cpu_pmStats.pmHPETRupt++;
+ x86_package()->HpetInt++;
+
+ /*
+ * Let power management do it's thing.
+ */
+ pmHPETInterrupt();
/* Return and show that the 'rupt has been handled... */
return 1;
static hpetReg_t saved_hpet;
-void hpet_save( void )
+void
+hpet_save(void)
{
hpetReg_t *from = (hpetReg_t *) hpetArea;
hpetReg_t *to = &saved_hpet;
to->MAIN_CNT = from->MAIN_CNT;
}
-void hpet_restore( void )
+void
+hpet_restore(void)
{
hpetReg_t *from = &saved_hpet;
hpetReg_t *to = (hpetReg_t *) hpetArea;
to->TIM2_CONF = from->TIM2_CONF;
to->TIM2_COMP = from->TIM2_COMP;
to->GINTR_STA = -1ULL;
- to->MAIN_CNT = tmrCvt(mach_absolute_time(), hpetCvtn2t);
+ to->MAIN_CNT = from->MAIN_CNT;
to->GEN_CONF = from->GEN_CONF;
}
return (((uint64_t) high) << 32) | low;
}
-
-#if MACH_KDB
-
-#define HI32(x) ((uint32_t)(((x) >> 32) & 0xFFFFFFFF))
-#define LO32(x) ((uint32_t)((x) & 0xFFFFFFFF))
-
-/*
- * Displays HPET memory mapped area
- * hp
- */
-void
-db_hpet(__unused db_expr_t addr, __unused int have_addr, __unused db_expr_t count, __unused char *modif)
-{
-
- db_display_hpet((hpetReg_t *) hpetArea); /* Dump out the HPET
- * stuff */
- return;
-}
-
-void
-db_display_hpet(hpetReg_t * hpt)
-{
-
- uint64_t cmain;
-
- cmain = hpt->MAIN_CNT; /* Get the main timer */
-
- /* General capabilities */
- db_printf(" GCAP_ID = %08X.%08X\n",
- HI32(hpt->GCAP_ID), LO32(hpt->GCAP_ID));
- /* General configuration */
- db_printf(" GEN_CONF = %08X.%08X\n",
- HI32(hpt->GEN_CONF), LO32(hpt->GEN_CONF));
- /* General Interrupt status */
- db_printf("GINTR_STA = %08X.%08X\n",
- HI32(hpt->GINTR_STA), LO32(hpt->GINTR_STA));
- /* Main counter */
- db_printf(" MAIN_CNT = %08X.%08X\n",
- HI32(cmain), LO32(cmain));
- /* Timer 0 config and cap */
- db_printf("TIM0_CONF = %08X.%08X\n",
- HI32(hpt->TIM0_CONF), LO32(hpt->TIM0_CONF));
- /* Timer 0 comparator */
- db_printf("TIM0_COMP = %08X.%08X\n",
- HI32(hpt->TIM0_COMP), LO32(hpt->TIM0_COMP));
- /* Timer 1 config and cap */
- db_printf("TIM0_CONF = %08X.%08X\n",
- HI32(hpt->TIM1_CONF), LO32(hpt->TIM1_CONF));
- /* Timer 1 comparator */
- db_printf("TIM1_COMP = %08X.%08X\n",
- HI32(hpt->TIM1_COMP), LO32(hpt->TIM1_COMP));
- /* Timer 2 config and cap */
- db_printf("TIM2_CONF = %08X.%08X\n",
- HI32(hpt->TIM2_CONF), LO32(hpt->TIM2_CONF));
- /* Timer 2 comparator */
- db_printf("TIM2_COMP = %08X.%08X\n",
- HI32(hpt->TIM2_COMP), LO32(hpt->TIM2_COMP));
-
- db_printf("\nHPET Frequency = %d.%05dMHz\n",
- (uint32_t) (hpetFreq / 1000000), (uint32_t) (hpetFreq % 1000000));
-
- return;
-
-}
-
-#endif
projects / apple / xnu.git / blobdiff