/*
- * Copyright (c) 2007-2017 Apple Inc. All rights reserved.
+ * Copyright (c) 2007-2019 Apple Inc. All rights reserved.
* Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*/
#include <pexpert/pexpert.h>
#include <pexpert/arm64/board_config.h>
#endif
+#include <kern/clock.h>
#include <machine/machine_routines.h>
#if DEVELOPMENT || DEBUG
#include <kern/simple_lock.h>
#include <kern/cpu_number.h>
#endif
/* Local declarations */
-void pe_identify_machine(boot_args * bootArgs);
+void pe_identify_machine(boot_args * bootArgs);
/* External declarations */
extern void clean_mmu_dcache(void);
static char *gPESoCDeviceType;
-static char gPESoCDeviceTypeBuffer[SOC_DEVICE_TYPE_BUFFER_SIZE];
+static char gPESoCDeviceTypeBuffer[SOC_DEVICE_TYPE_BUFFER_SIZE];
static vm_offset_t gPESoCBasePhys;
-static uint32_t gTCFG0Value;
+static uint32_t gTCFG0Value;
static uint32_t pe_arm_init_timer(void *args);
#if DEVELOPMENT || DEBUG
-decl_simple_lock_data(, panic_trace_lock;)
+decl_simple_lock_data(, panic_hook_lock);
#endif
/*
* pe_identify_machine:
- *
+ *
* Sets up platform parameters. Returns: nothing
*/
void
pe_identify_machine(boot_args * bootArgs)
{
OpaqueDTEntryIterator iter;
- DTEntry cpus, cpu;
- uint32_t mclk = 0, hclk = 0, pclk = 0, tclk = 0, use_dt = 0;
- unsigned long *value;
- unsigned int size;
- int err;
+ DTEntry cpus, cpu;
+ uint32_t mclk = 0, hclk = 0, pclk = 0, tclk = 0, use_dt = 0;
+ unsigned long const *value;
+ unsigned int size;
+ int err;
(void)bootArgs;
- if (pe_arm_get_soc_base_phys() == 0)
+ if (pe_arm_get_soc_base_phys() == 0) {
return;
+ }
/* Clear the gPEClockFrequencyInfo struct */
bzero((void *)&gPEClockFrequencyInfo, sizeof(clock_frequency_info_t));
gTCFG0Value = tclk - 1;
- tclk = pclk / (4 * tclk); /* Calculate the "actual"
- * Timer0 frequency in fixed
- * point. */
+ tclk = pclk / (4 * tclk); /* Calculate the "actual"
+ * Timer0 frequency in fixed
+ * point. */
mclk = (mclk >> 17) * (125 * 125);
hclk = (hclk >> 17) * (125 * 125);
pclk = (pclk >> 17) * (125 * 125);
tclk = (((((tclk * 125) + 2) >> 2) * 125) + (1 << 14)) >> 15;
-
} else if (!strcmp(gPESoCDeviceType, "integratorcp-io")) {
mclk = 200000000;
hclk = mclk / 2;
pclk = hclk / 2;
tclk = pclk;
} else if (!strcmp(gPESoCDeviceType, "omap3430sdp-io")) {
- mclk = 332000000;
- hclk = 19200000;
- pclk = hclk;
- tclk = pclk;
+ mclk = 332000000;
+ hclk = 19200000;
+ pclk = hclk;
+ tclk = pclk;
} else if (!strcmp(gPESoCDeviceType, "s5i3000-io")) {
mclk = 400000000;
hclk = mclk / 4;
pclk = hclk / 2;
- tclk = 100000; /* timer is at 100khz */
-
- } else if (!strcmp(gPESoCDeviceType, "bcm2837-io")) {
- mclk = 1200000000;
- hclk = mclk / 4;
- pclk = hclk / 2;
- tclk = 1000000;
- } else
+ tclk = 100000; /* timer is at 100khz */
+ } else {
use_dt = 1;
+ }
if (use_dt) {
/* Start with default values. */
gPEClockFrequencyInfo.bus_clock_rate_hz = 100000000;
gPEClockFrequencyInfo.cpu_clock_rate_hz = 400000000;
- err = DTLookupEntry(NULL, "/cpus", &cpus);
+ err = SecureDTLookupEntry(NULL, "/cpus", &cpus);
assert(err == kSuccess);
- err = DTInitEntryIterator(cpus, &iter);
+ err = SecureDTInitEntryIterator(cpus, &iter);
assert(err == kSuccess);
- while (kSuccess == DTIterateEntries(&iter, &cpu)) {
- if ((kSuccess != DTGetProperty(cpu, "state", (void **)&value, &size)) ||
- (strncmp((char*)value, "running", size) != 0))
+ while (kSuccess == SecureDTIterateEntries(&iter, &cpu)) {
+ if ((kSuccess != SecureDTGetProperty(cpu, "state", (void const **)&value, &size)) ||
+ (strncmp((char const *)value, "running", size) != 0)) {
continue;
+ }
/* Find the time base frequency first. */
- if (DTGetProperty(cpu, "timebase-frequency", (void **)&value, &size) == kSuccess) {
+ if (SecureDTGetProperty(cpu, "timebase-frequency", (void const **)&value, &size) == kSuccess) {
/*
* timebase_frequency_hz is only 32 bits, and
* the device tree should never provide 64
* bits so this if should never be taken.
*/
- if (size == 8)
- gPEClockFrequencyInfo.timebase_frequency_hz = *(unsigned long long *)value;
- else
+ if (size == 8) {
+ gPEClockFrequencyInfo.timebase_frequency_hz = *(unsigned long long const *)value;
+ } else {
gPEClockFrequencyInfo.timebase_frequency_hz = *value;
+ }
}
gPEClockFrequencyInfo.dec_clock_rate_hz = gPEClockFrequencyInfo.timebase_frequency_hz;
/* Find the bus frequency next. */
- if (DTGetProperty(cpu, "bus-frequency", (void **)&value, &size) == kSuccess) {
- if (size == 8)
- gPEClockFrequencyInfo.bus_frequency_hz = *(unsigned long long *)value;
- else
+ if (SecureDTGetProperty(cpu, "bus-frequency", (void const **)&value, &size) == kSuccess) {
+ if (size == 8) {
+ gPEClockFrequencyInfo.bus_frequency_hz = *(unsigned long long const *)value;
+ } else {
gPEClockFrequencyInfo.bus_frequency_hz = *value;
+ }
}
gPEClockFrequencyInfo.bus_frequency_min_hz = gPEClockFrequencyInfo.bus_frequency_hz;
gPEClockFrequencyInfo.bus_frequency_max_hz = gPEClockFrequencyInfo.bus_frequency_hz;
- if (gPEClockFrequencyInfo.bus_frequency_hz < 0x100000000ULL)
+ if (gPEClockFrequencyInfo.bus_frequency_hz < 0x100000000ULL) {
gPEClockFrequencyInfo.bus_clock_rate_hz = gPEClockFrequencyInfo.bus_frequency_hz;
- else
+ } else {
gPEClockFrequencyInfo.bus_clock_rate_hz = 0xFFFFFFFF;
+ }
/* Find the memory frequency next. */
- if (DTGetProperty(cpu, "memory-frequency", (void **)&value, &size) == kSuccess) {
- if (size == 8)
- gPEClockFrequencyInfo.mem_frequency_hz = *(unsigned long long *)value;
- else
+ if (SecureDTGetProperty(cpu, "memory-frequency", (void const **)&value, &size) == kSuccess) {
+ if (size == 8) {
+ gPEClockFrequencyInfo.mem_frequency_hz = *(unsigned long long const *)value;
+ } else {
gPEClockFrequencyInfo.mem_frequency_hz = *value;
+ }
}
gPEClockFrequencyInfo.mem_frequency_min_hz = gPEClockFrequencyInfo.mem_frequency_hz;
gPEClockFrequencyInfo.mem_frequency_max_hz = gPEClockFrequencyInfo.mem_frequency_hz;
/* Find the peripheral frequency next. */
- if (DTGetProperty(cpu, "peripheral-frequency", (void **)&value, &size) == kSuccess) {
- if (size == 8)
- gPEClockFrequencyInfo.prf_frequency_hz = *(unsigned long long *)value;
- else
+ if (SecureDTGetProperty(cpu, "peripheral-frequency", (void const **)&value, &size) == kSuccess) {
+ if (size == 8) {
+ gPEClockFrequencyInfo.prf_frequency_hz = *(unsigned long long const *)value;
+ } else {
gPEClockFrequencyInfo.prf_frequency_hz = *value;
+ }
}
gPEClockFrequencyInfo.prf_frequency_min_hz = gPEClockFrequencyInfo.prf_frequency_hz;
gPEClockFrequencyInfo.prf_frequency_max_hz = gPEClockFrequencyInfo.prf_frequency_hz;
/* Find the fixed frequency next. */
- if (DTGetProperty(cpu, "fixed-frequency", (void **)&value, &size) == kSuccess) {
- if (size == 8)
- gPEClockFrequencyInfo.fix_frequency_hz = *(unsigned long long *)value;
- else
+ if (SecureDTGetProperty(cpu, "fixed-frequency", (void const **)&value, &size) == kSuccess) {
+ if (size == 8) {
+ gPEClockFrequencyInfo.fix_frequency_hz = *(unsigned long long const *)value;
+ } else {
gPEClockFrequencyInfo.fix_frequency_hz = *value;
+ }
}
/* Find the cpu frequency last. */
- if (DTGetProperty(cpu, "clock-frequency", (void **)&value, &size) == kSuccess) {
- if (size == 8)
- gPEClockFrequencyInfo.cpu_frequency_hz = *(unsigned long long *)value;
- else
+ if (SecureDTGetProperty(cpu, "clock-frequency", (void const **)&value, &size) == kSuccess) {
+ if (size == 8) {
+ gPEClockFrequencyInfo.cpu_frequency_hz = *(unsigned long long const *)value;
+ } else {
gPEClockFrequencyInfo.cpu_frequency_hz = *value;
+ }
}
gPEClockFrequencyInfo.cpu_frequency_min_hz = gPEClockFrequencyInfo.cpu_frequency_hz;
gPEClockFrequencyInfo.cpu_frequency_max_hz = gPEClockFrequencyInfo.cpu_frequency_hz;
- if (gPEClockFrequencyInfo.cpu_frequency_hz < 0x100000000ULL)
+ if (gPEClockFrequencyInfo.cpu_frequency_hz < 0x100000000ULL) {
gPEClockFrequencyInfo.cpu_clock_rate_hz = gPEClockFrequencyInfo.cpu_frequency_hz;
- else
+ } else {
gPEClockFrequencyInfo.cpu_clock_rate_hz = 0xFFFFFFFF;
+ }
}
} else {
/* Use the canned values. */
gPEClockFrequencyInfo.bus_clock_rate_den = 1;
gPEClockFrequencyInfo.bus_to_cpu_rate_num =
- (2 * gPEClockFrequencyInfo.cpu_clock_rate_hz) / gPEClockFrequencyInfo.bus_clock_rate_hz;
+ (2 * gPEClockFrequencyInfo.cpu_clock_rate_hz) / gPEClockFrequencyInfo.bus_clock_rate_hz;
gPEClockFrequencyInfo.bus_to_cpu_rate_den = 2;
gPEClockFrequencyInfo.bus_to_dec_rate_num = 1;
gPEClockFrequencyInfo.bus_to_dec_rate_den =
- gPEClockFrequencyInfo.bus_clock_rate_hz / gPEClockFrequencyInfo.dec_clock_rate_hz;
+ gPEClockFrequencyInfo.bus_clock_rate_hz / gPEClockFrequencyInfo.dec_clock_rate_hz;
}
vm_offset_t
pe_arm_get_soc_base_phys(void)
{
- DTEntry entryP;
- uintptr_t *ranges_prop;
- uint32_t prop_size;
- char *tmpStr;
+ DTEntry entryP;
+ uintptr_t const *ranges_prop;
+ uint32_t prop_size;
+ char const *tmpStr;
- if (DTFindEntry("name", "arm-io", &entryP) == kSuccess) {
+ if (SecureDTFindEntry("name", "arm-io", &entryP) == kSuccess) {
if (gPESoCDeviceType == 0) {
- DTGetProperty(entryP, "device_type", (void **)&tmpStr, &prop_size);
+ SecureDTGetProperty(entryP, "device_type", (void const **)&tmpStr, &prop_size);
strlcpy(gPESoCDeviceTypeBuffer, tmpStr, SOC_DEVICE_TYPE_BUFFER_SIZE);
gPESoCDeviceType = gPESoCDeviceTypeBuffer;
- DTGetProperty(entryP, "ranges", (void **)&ranges_prop, &prop_size);
+ SecureDTGetProperty(entryP, "ranges", (void const **)&ranges_prop, &prop_size);
gPESoCBasePhys = *(ranges_prop + 1);
}
return gPESoCBasePhys;
return 0;
}
-uint32_t
-pe_arm_get_soc_revision(void)
-{
- DTEntry entryP;
- uint32_t *value;
- uint32_t size;
-
- if ((DTFindEntry("name", "arm-io", &entryP) == kSuccess)
- && (DTGetProperty(entryP, "chip-revision", (void **)&value, &size) == kSuccess)) {
- if (size == 8)
- return((uint32_t)*(unsigned long long *)value);
- else
- return(*value);
- }
- return 0;
-}
-
-
-extern void fleh_fiq_generic(void);
-
-#if defined(ARM_BOARD_CLASS_S5L8960X)
-static struct tbd_ops s5l8960x_funcs = {NULL, NULL, NULL};
-#endif /* defined(ARM_BOARD_CLASS_S5L8960X) */
-
-#if defined(ARM_BOARD_CLASS_T7000)
-static struct tbd_ops t7000_funcs = {NULL, NULL, NULL};
-#endif /* defined(ARM_BOARD_CLASS_T7000) */
-
-#if defined(ARM_BOARD_CLASS_S7002)
-extern void fleh_fiq_s7002(void);
-extern uint32_t s7002_get_decrementer(void);
-extern void s7002_set_decrementer(uint32_t);
-static struct tbd_ops s7002_funcs = {&fleh_fiq_s7002, &s7002_get_decrementer, &s7002_set_decrementer};
-#endif /* defined(ARM_BOARD_CLASS_S7002) */
-
-#if defined(ARM_BOARD_CLASS_S8000)
-static struct tbd_ops s8000_funcs = {NULL, NULL, NULL};
-#endif /* defined(ARM_BOARD_CLASS_T7000) */
+extern void fleh_fiq_generic(void);
#if defined(ARM_BOARD_CLASS_T8002)
extern void fleh_fiq_t8002(void);
-extern uint32_t t8002_get_decrementer(void);
-extern void t8002_set_decrementer(uint32_t);
+extern uint32_t t8002_get_decrementer(void);
+extern void t8002_set_decrementer(uint32_t);
static struct tbd_ops t8002_funcs = {&fleh_fiq_t8002, &t8002_get_decrementer, &t8002_set_decrementer};
#endif /* defined(ARM_BOARD_CLASS_T8002) */
-#if defined(ARM_BOARD_CLASS_T8010)
-static struct tbd_ops t8010_funcs = {NULL, NULL, NULL};
-#endif /* defined(ARM_BOARD_CLASS_T8010) */
-
-#if defined(ARM_BOARD_CLASS_T8011)
-static struct tbd_ops t8011_funcs = {NULL, NULL, NULL};
-#endif /* defined(ARM_BOARD_CLASS_T8011) */
-
-#if defined(ARM_BOARD_CLASS_T8015)
-static struct tbd_ops t8015_funcs = {NULL, NULL, NULL};
-#endif /* defined(ARM_BOARD_CLASS_T8015) */
-
-
-
-
-
-
-#if defined(ARM_BOARD_CLASS_BCM2837)
-static struct tbd_ops bcm2837_funcs = {NULL, NULL, NULL};
-#endif /* defined(ARM_BOARD_CLASS_BCM2837) */
-
-vm_offset_t gPicBase;
-vm_offset_t gTimerBase;
-vm_offset_t gSocPhys;
+vm_offset_t gPicBase;
+vm_offset_t gTimerBase;
+vm_offset_t gSocPhys;
#if DEVELOPMENT || DEBUG
// This block contains the panic trace implementation
// These variables are local to this file, and contain the panic trace configuration information
-typedef enum
-{
- panic_trace_disabled = 0,
- panic_trace_unused,
- panic_trace_enabled,
- panic_trace_alt_enabled,
+typedef enum{
+ panic_trace_disabled = 0,
+ panic_trace_unused,
+ panic_trace_enabled,
+ panic_trace_alt_enabled,
} panic_trace_t;
static panic_trace_t bootarg_panic_trace;
+static int bootarg_stop_clocks;
+
// The command buffer contains the converted commands from the device tree for commanding cpu_halt, enable_trace, etc.
#define DEBUG_COMMAND_BUFFER_SIZE 256
-typedef struct command_buffer_element{
+typedef struct command_buffer_element {
uintptr_t address;
- uint16_t destination_cpu_selector;
uintptr_t value;
+ uint16_t destination_cpu_selector;
+ uint16_t delay_us;
+ bool is_32bit;
} command_buffer_element_t;
-static command_buffer_element_t debug_command_buffer[DEBUG_COMMAND_BUFFER_SIZE]; // statically allocate to prevent needing alloc at runtime
-static uint32_t next_command_bufffer_entry = 0; // index of next unused slot in debug_command_buffer
-
-#define CPU_SELECTOR_SHIFT ((sizeof(int)-2)*8)
-#define CPU_SELECTOR_MASK (0xFFFF << CPU_SELECTOR_SHIFT)
-#define REGISTER_OFFSET_MASK (~CPU_SELECTOR_MASK)
-#define REGISTER_OFFSET(register_prop) (register_prop & REGISTER_OFFSET_MASK)
-#define CPU_SELECTOR(register_offset) (register_offset >> CPU_SELECTOR_SHIFT) // Upper 16bits holds the cpu selector
-#define MAX_WINDOW_SIZE 0xFFFF
-#define PE_ISSPACE(c) (c == ' ' || c == '\t' || c == '\n' || c == '\12')
+static command_buffer_element_t debug_command_buffer[DEBUG_COMMAND_BUFFER_SIZE]; // statically allocate to prevent needing alloc at runtime
+static uint32_t next_command_buffer_entry = 0; // index of next unused slot in debug_command_buffer
+
+#define CPU_SELECTOR_SHIFT (16)
+#define CPU_SELECTOR_MASK (0xFFFF << CPU_SELECTOR_SHIFT)
+#define REGISTER_OFFSET_MASK ((1 << CPU_SELECTOR_SHIFT) - 1)
+#define REGISTER_OFFSET(register_prop) (register_prop & REGISTER_OFFSET_MASK)
+#define CPU_SELECTOR(register_offset) ((register_offset & CPU_SELECTOR_MASK) >> CPU_SELECTOR_SHIFT) // Upper 16bits holds the cpu selector
+#define MAX_WINDOW_SIZE 0xFFFF
+#define PE_ISSPACE(c) (c == ' ' || c == '\t' || c == '\n' || c == '\12')
+#define DELAY_SHIFT (32)
+#define DELAY_MASK (0xFFFFULL << DELAY_SHIFT)
+#define DELAY_US(register_offset) ((register_offset & DELAY_MASK) >> DELAY_SHIFT)
+#define REGISTER_32BIT_MASK (1ULL << 63)
/*
-0x0000 - all cpus
-0x0001 - cpu 0
-0x0002 - cpu 1
-0x0004 - cpu 2
-0x0003 - cpu 0 and 1
-since it's 16bits, we can have up to 16 cpus
-*/
+ * 0x0000 - all cpus
+ * 0x0001 - cpu 0
+ * 0x0002 - cpu 1
+ * 0x0004 - cpu 2
+ * 0x0003 - cpu 0 and 1
+ * since it's 16bits, we can have up to 16 cpus
+ */
#define ALL_CPUS 0x0000
#define IS_CPU_SELECTED(cpu_number, cpu_selector) (cpu_selector == ALL_CPUS || (cpu_selector & (1<<cpu_number) ) != 0 )
-#define RESET_VIRTUAL_ADDRESS_WINDOW 0xFFFFFFFF
+#define RESET_VIRTUAL_ADDRESS_WINDOW 0xFFFFFFFF
// Pointers into debug_command_buffer for each operation. Assumes runtime will init them to zero.
static command_buffer_element_t *cpu_halt;
static command_buffer_element_t *enable_trace;
static command_buffer_element_t *enable_alt_trace;
static command_buffer_element_t *trace_halt;
+static command_buffer_element_t *enable_stop_clocks;
+static command_buffer_element_t *stop_clocks;
// Record which CPU is currently running one of our debug commands, so we can trap panic reentrancy to PE_arm_debug_panic_hook.
static int running_debug_command_on_cpu_number = -1;
static void
pe_init_debug_command(DTEntry entryP, command_buffer_element_t **command_buffer, const char* entry_name)
{
- uintptr_t *reg_prop;
- uint32_t prop_size, reg_window_size = 0, command_starting_index;
- uintptr_t debug_reg_window = 0;
+ uintptr_t const *reg_prop;
+ uint32_t prop_size, reg_window_size = 0, command_starting_index;
+ uintptr_t debug_reg_window = 0;
if (command_buffer == 0) {
return;
}
- if (DTGetProperty(entryP, entry_name, (void **)®_prop, &prop_size) != kSuccess) {
+ if (SecureDTGetProperty(entryP, entry_name, (void const **)®_prop, &prop_size) != kSuccess) {
panic("pe_init_debug_command: failed to read property %s\n", entry_name);
}
// make sure command will fit
- if (next_command_bufffer_entry + prop_size/sizeof(uintptr_t) > DEBUG_COMMAND_BUFFER_SIZE-1) {
+ if (next_command_buffer_entry + prop_size / sizeof(uintptr_t) > DEBUG_COMMAND_BUFFER_SIZE - 1) {
panic("pe_init_debug_command: property %s is %u bytes, command buffer only has %lu bytes remaining\n",
- entry_name, prop_size, ((DEBUG_COMMAND_BUFFER_SIZE-1) - next_command_bufffer_entry) * sizeof(uintptr_t) );
+ entry_name, prop_size, ((DEBUG_COMMAND_BUFFER_SIZE - 1) - next_command_buffer_entry) * sizeof(uintptr_t));
}
// Hold the pointer in a temp variable and later assign it to command buffer, in case we panic while half-initialized
- command_starting_index = next_command_bufffer_entry;
+ command_starting_index = next_command_buffer_entry;
// convert to real virt addresses and stuff commands into debug_command_buffer
- for( ; prop_size ; reg_prop += 2, prop_size -= 2*sizeof(uintptr_t) ) {
+ for (; prop_size; reg_prop += 2, prop_size -= 2 * sizeof(uintptr_t)) {
if (*reg_prop == RESET_VIRTUAL_ADDRESS_WINDOW) {
debug_reg_window = 0; // Create a new window
- }
- else if (debug_reg_window==0) {
+ } else if (debug_reg_window == 0) {
// create a window from virtual address to the specified physical address
reg_window_size = ((uint32_t)*(reg_prop + 1));
if (reg_window_size > MAX_WINDOW_SIZE) {
debug_reg_window = ml_io_map(gSocPhys + *reg_prop, reg_window_size);
// for debug -- kprintf("pe_init_debug_command: %s registers @ 0x%08lX for 0x%08lX\n", entry_name, debug_reg_window, *(reg_prop + 1) );
} else {
- if ((REGISTER_OFFSET(*reg_prop)+ sizeof(uintptr_t)) >= reg_window_size) {
- panic("pe_init_debug_command: Command Offset is %lx, exceeds allocated size of %x\n", REGISTER_OFFSET(*reg_prop),reg_window_size );
+ if ((REGISTER_OFFSET(*reg_prop) + sizeof(uintptr_t)) >= reg_window_size) {
+ panic("pe_init_debug_command: Command Offset is %lx, exceeds allocated size of %x\n", REGISTER_OFFSET(*reg_prop), reg_window_size );
}
- debug_command_buffer[next_command_bufffer_entry].address = debug_reg_window + REGISTER_OFFSET(*reg_prop);
- debug_command_buffer[next_command_bufffer_entry].destination_cpu_selector = CPU_SELECTOR(*reg_prop);
- debug_command_buffer[next_command_bufffer_entry++].value = *(reg_prop+1);
+ debug_command_buffer[next_command_buffer_entry].address = debug_reg_window + REGISTER_OFFSET(*reg_prop);
+ debug_command_buffer[next_command_buffer_entry].destination_cpu_selector = (uint16_t)CPU_SELECTOR(*reg_prop);
+#if defined(__arm64__)
+ debug_command_buffer[next_command_buffer_entry].delay_us = DELAY_US(*reg_prop);
+ debug_command_buffer[next_command_buffer_entry].is_32bit = ((*reg_prop & REGISTER_32BIT_MASK) != 0);
+#else
+ debug_command_buffer[next_command_buffer_entry].delay_us = 0;
+ debug_command_buffer[next_command_buffer_entry].is_32bit = false;
+#endif
+ debug_command_buffer[next_command_buffer_entry++].value = *(reg_prop + 1);
}
}
// null terminate the address field of the command to end it
- debug_command_buffer[next_command_bufffer_entry++].address = 0;
+ debug_command_buffer[next_command_buffer_entry++].address = 0;
- // save pointer into table for this command
+ // save pointer into table for this command
*command_buffer = &debug_command_buffer[command_starting_index];
}
pe_run_debug_command(command_buffer_element_t *command_buffer)
{
// When both the CPUs panic, one will get stuck on the lock and the other CPU will be halted when the first executes the debug command
- simple_lock(&panic_trace_lock);
+ simple_lock(&panic_hook_lock, LCK_GRP_NULL);
+
running_debug_command_on_cpu_number = cpu_number();
- while( command_buffer && command_buffer->address ) {
+ while (command_buffer && command_buffer->address) {
if (IS_CPU_SELECTED(running_debug_command_on_cpu_number, command_buffer->destination_cpu_selector)) {
- *((volatile uintptr_t*)(command_buffer->address)) = command_buffer->value; // register = value;
+ if (command_buffer->is_32bit) {
+ *((volatile uint32_t*)(command_buffer->address)) = (uint32_t)(command_buffer->value);
+ } else {
+ *((volatile uintptr_t*)(command_buffer->address)) = command_buffer->value; // register = value;
+ }
+ if (command_buffer->delay_us != 0) {
+ uint64_t deadline;
+ nanoseconds_to_absolutetime(command_buffer->delay_us * NSEC_PER_USEC, &deadline);
+ deadline += ml_get_timebase();
+ while (ml_get_timebase() < deadline) {
+ ;
+ }
+ }
}
command_buffer++;
}
running_debug_command_on_cpu_number = -1;
- simple_unlock(&panic_trace_lock);
+ simple_unlock(&panic_hook_lock);
}
void
PE_arm_debug_enable_trace(void)
{
- switch (bootarg_panic_trace) {
- case panic_trace_enabled:
- pe_run_debug_command(enable_trace);
- break;
-
- case panic_trace_alt_enabled:
- pe_run_debug_command(enable_alt_trace);
- break;
-
- default:
- break;
- }
+ switch (bootarg_panic_trace) {
+ case panic_trace_enabled:
+ pe_run_debug_command(enable_trace);
+ break;
+
+ case panic_trace_alt_enabled:
+ pe_run_debug_command(enable_alt_trace);
+ break;
+
+ default:
+ break;
+ }
}
static void
-PEARMDebugPanicHook(const char *str)
+PE_arm_panic_hook(const char *str __unused)
{
- (void)str; // not used
-
+ (void)str; // not used
+ if (bootarg_stop_clocks != 0) {
+ pe_run_debug_command(stop_clocks);
+ }
// if panic trace is enabled
if (bootarg_panic_trace != 0) {
if (running_debug_command_on_cpu_number == cpu_number()) {
return; // allow the normal panic operation to occur.
}
- // Stop tracing to freze the buffer and return to normal panic processing.
+ // Stop tracing to freeze the buffer and return to normal panic processing.
pe_run_debug_command(trace_halt);
}
}
-void (*PE_arm_debug_panic_hook)(const char *str) = PEARMDebugPanicHook;
+void (*PE_arm_debug_panic_hook)(const char *str) = PE_arm_panic_hook;
+
+void
+PE_init_cpu(void)
+{
+ if (bootarg_stop_clocks != 0) {
+ pe_run_debug_command(enable_stop_clocks);
+ }
+}
#else
-void (*PE_arm_debug_panic_hook)(const char *str) = NULL;
+void(*const PE_arm_debug_panic_hook)(const char *str) = NULL;
+
+void
+PE_init_cpu(void)
+{
+}
#endif // DEVELOPMENT || DEBUG
+void
+PE_panic_hook(const char *str __unused)
+{
+ if (PE_arm_debug_panic_hook != NULL) {
+ PE_arm_debug_panic_hook(str);
+ }
+}
+
void
pe_arm_init_debug(void *args)
{
- DTEntry entryP;
- uintptr_t *reg_prop;
- uint32_t prop_size;
+ DTEntry entryP;
+ uintptr_t const *reg_prop;
+ uint32_t prop_size;
- if (gSocPhys == 0 ) {
+ if (gSocPhys == 0) {
kprintf("pe_arm_init_debug: failed to initialize gSocPhys == 0\n");
- return;
+ return;
}
-
- if ( DTFindEntry("device_type", "cpu-debug-interface", &entryP) == kSuccess ) {
+
+ if (SecureDTFindEntry("device_type", "cpu-debug-interface", &entryP) == kSuccess) {
if (args != NULL) {
- if (DTGetProperty(entryP, "reg", (void **)®_prop, &prop_size) == kSuccess) {
+ if (SecureDTGetProperty(entryP, "reg", (void const **)®_prop, &prop_size) == kSuccess) {
ml_init_arm_debug_interface(args, ml_io_map(gSocPhys + *reg_prop, *(reg_prop + 1)));
}
#if DEVELOPMENT || DEBUG
// When args != NULL, this means we're being called from arm_init on the boot CPU.
// This controls one-time initialization of the Panic Trace infrastructure
- simple_lock_init(&panic_trace_lock, 0); //assuming single threaded mode
-
+ simple_lock_init(&panic_hook_lock, 0); //assuming single threaded mode
+
// Panic_halt is deprecated. Please use panic_trace istead.
unsigned int temp_bootarg_panic_trace;
if (PE_parse_boot_argn("panic_trace", &temp_bootarg_panic_trace, sizeof(temp_bootarg_panic_trace)) ||
PE_parse_boot_argn("panic_halt", &temp_bootarg_panic_trace, sizeof(temp_bootarg_panic_trace))) {
-
kprintf("pe_arm_init_debug: panic_trace=%d\n", temp_bootarg_panic_trace);
- // Prepare debug command buffers.
+ // Prepare debug command buffers.
pe_init_debug_command(entryP, &cpu_halt, "cpu_halt");
pe_init_debug_command(entryP, &enable_trace, "enable_trace");
pe_init_debug_command(entryP, &enable_alt_trace, "enable_alt_trace");
pe_init_debug_command(entryP, &trace_halt, "trace_halt");
-
+
// now that init's are done, enable the panic halt capture (allows pe_init_debug_command to panic normally if necessary)
bootarg_panic_trace = temp_bootarg_panic_trace;
// start tracing now if enabled
PE_arm_debug_enable_trace();
}
+ unsigned int temp_bootarg_stop_clocks;
+ if (PE_parse_boot_argn("stop_clocks", &temp_bootarg_stop_clocks, sizeof(temp_bootarg_stop_clocks))) {
+ pe_init_debug_command(entryP, &enable_stop_clocks, "enable_stop_clocks");
+ pe_init_debug_command(entryP, &stop_clocks, "stop_clocks");
+ bootarg_stop_clocks = temp_bootarg_stop_clocks;
+ }
#endif
}
} else {
static uint32_t
pe_arm_map_interrupt_controller(void)
{
- DTEntry entryP;
- uintptr_t *reg_prop;
- uint32_t prop_size;
- vm_offset_t soc_phys = 0;
+ DTEntry entryP;
+ uintptr_t const *reg_prop;
+ uint32_t prop_size;
+ vm_offset_t soc_phys = 0;
gSocPhys = pe_arm_get_soc_base_phys();
soc_phys = gSocPhys;
kprintf("pe_arm_map_interrupt_controller: soc_phys: 0x%lx\n", (unsigned long)soc_phys);
- if (soc_phys == 0)
+ if (soc_phys == 0) {
return 0;
+ }
- if (DTFindEntry("interrupt-controller", "master", &entryP) == kSuccess) {
+ if (SecureDTFindEntry("interrupt-controller", "master", &entryP) == kSuccess) {
kprintf("pe_arm_map_interrupt_controller: found interrupt-controller\n");
- DTGetProperty(entryP, "reg", (void **)®_prop, &prop_size);
+ SecureDTGetProperty(entryP, "reg", (void const **)®_prop, &prop_size);
gPicBase = ml_io_map(soc_phys + *reg_prop, *(reg_prop + 1));
kprintf("pe_arm_map_interrupt_controller: gPicBase: 0x%lx\n", (unsigned long)gPicBase);
}
return 0;
}
- if (DTFindEntry("device_type", "timer", &entryP) == kSuccess) {
+ if (SecureDTFindEntry("device_type", "timer", &entryP) == kSuccess) {
kprintf("pe_arm_map_interrupt_controller: found timer\n");
- DTGetProperty(entryP, "reg", (void **)®_prop, &prop_size);
+ SecureDTGetProperty(entryP, "reg", (void const **)®_prop, &prop_size);
gTimerBase = ml_io_map(soc_phys + *reg_prop, *(reg_prop + 1));
kprintf("pe_arm_map_interrupt_controller: gTimerBase: 0x%lx\n", (unsigned long)gTimerBase);
}
return pe_arm_init_timer(args);
}
-static uint32_t
+static uint32_t
pe_arm_init_timer(void *args)
{
- vm_offset_t pic_base = 0;
- vm_offset_t timer_base = 0;
- vm_offset_t soc_phys;
- vm_offset_t eoi_addr = 0;
- uint32_t eoi_value = 0;
+ vm_offset_t pic_base = 0;
+ vm_offset_t timer_base = 0;
+ vm_offset_t soc_phys;
+ vm_offset_t eoi_addr = 0;
+ uint32_t eoi_value = 0;
struct tbd_ops generic_funcs = {&fleh_fiq_generic, NULL, NULL};
- tbd_ops_t tbd_funcs = &generic_funcs;
+ struct tbd_ops empty_funcs __unused = {NULL, NULL, NULL};
+ tbd_ops_t tbd_funcs = &generic_funcs;
/* The SoC headers expect to use pic_base, timer_base, etc... */
pic_base = gPicBase;
timer_base = gTimerBase;
soc_phys = gSocPhys;
-#if defined(ARM_BOARD_CLASS_S5L8960X)
- if (!strcmp(gPESoCDeviceType, "s5l8960x-io")) {
-
- tbd_funcs = &s5l8960x_funcs;
- } else
-#endif
-#if defined(ARM_BOARD_CLASS_T7000)
- if (!strcmp(gPESoCDeviceType, "t7000-io") ||
- !strcmp(gPESoCDeviceType, "t7001-io")) {
- tbd_funcs = &t7000_funcs;
- } else
-#endif
-#if defined(ARM_BOARD_CLASS_S7002)
- if (!strcmp(gPESoCDeviceType, "s7002-io")) {
-
-#ifdef ARM_BOARD_WFE_TIMEOUT_NS
- // Enable the WFE Timer
- rPMGR_EVENT_TMR_PERIOD = ((uint64_t)(ARM_BOARD_WFE_TIMEOUT_NS) * gPEClockFrequencyInfo.timebase_frequency_hz) / NSEC_PER_SEC;
- rPMGR_EVENT_TMR = rPMGR_EVENT_TMR_PERIOD;
- rPMGR_EVENT_TMR_CTL = PMGR_EVENT_TMR_CTL_EN;
-#endif /* ARM_BOARD_WFE_TIMEOUT_NS */
-
- rPMGR_INTERVAL_TMR = 0x7FFFFFFF;
- rPMGR_INTERVAL_TMR_CTL = PMGR_INTERVAL_TMR_CTL_EN | PMGR_INTERVAL_TMR_CTL_CLR_INT;
-
- eoi_addr = timer_base;
- eoi_value = PMGR_INTERVAL_TMR_CTL_EN | PMGR_INTERVAL_TMR_CTL_CLR_INT;
- tbd_funcs = &s7002_funcs;
- } else
-#endif
-#if defined(ARM_BOARD_CLASS_S8000)
- if (!strcmp(gPESoCDeviceType, "s8000-io") ||
- !strcmp(gPESoCDeviceType, "s8001-io")) {
- tbd_funcs = &s8000_funcs;
- } else
-#endif
#if defined(ARM_BOARD_CLASS_T8002)
if (!strcmp(gPESoCDeviceType, "t8002-io") ||
!strcmp(gPESoCDeviceType, "t8004-io")) {
-
/* Enable the Decrementer */
aic_write32(kAICTmrCnt, 0x7FFFFFFF);
aic_write32(kAICTmrCfg, kAICTmrCfgEn);
aic_write32(kAICTmrIntStat, kAICTmrIntStatPct);
#ifdef ARM_BOARD_WFE_TIMEOUT_NS
// Enable the WFE Timer
- rPMGR_EVENT_TMR_PERIOD = ((uint64_t)(ARM_BOARD_WFE_TIMEOUT_NS) * gPEClockFrequencyInfo.timebase_frequency_hz) / NSEC_PER_SEC;
+ rPMGR_EVENT_TMR_PERIOD = ((uint64_t)(ARM_BOARD_WFE_TIMEOUT_NS) *gPEClockFrequencyInfo.timebase_frequency_hz) / NSEC_PER_SEC;
rPMGR_EVENT_TMR = rPMGR_EVENT_TMR_PERIOD;
rPMGR_EVENT_TMR_CTL = PMGR_EVENT_TMR_CTL_EN;
#endif /* ARM_BOARD_WFE_TIMEOUT_NS */
tbd_funcs = &t8002_funcs;
} else
#endif
-#if defined(ARM_BOARD_CLASS_T8010)
- if (!strcmp(gPESoCDeviceType, "t8010-io")) {
- tbd_funcs = &t8010_funcs;
- } else
-#endif
-#if defined(ARM_BOARD_CLASS_T8011)
- if (!strcmp(gPESoCDeviceType, "t8011-io")) {
- tbd_funcs = &t8011_funcs;
- } else
-#endif
-#if defined(ARM_BOARD_CLASS_T8015)
- if (!strcmp(gPESoCDeviceType, "t8015-io")) {
- tbd_funcs = &t8015_funcs;
- } else
-#endif
-#if defined(ARM_BOARD_CLASS_BCM2837)
- if (!strcmp(gPESoCDeviceType, "bcm2837-io")) {
- tbd_funcs = &bcm2837_funcs;
- } else
+#if defined(__arm64__)
+ tbd_funcs = &empty_funcs;
+#else
+ return 0;
#endif
- return 0;
- if (args != NULL)
+ if (args != NULL) {
ml_init_timebase(args, tbd_funcs, eoi_addr, eoi_value);
+ }
return 1;
}
-
projects / apple / xnu.git / blobdiff