diff options
author | Christian Cunningham <cc@localhost> | 2022-03-24 09:38:08 -0700 |
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committer | Christian Cunningham <cc@localhost> | 2022-03-24 09:38:08 -0700 |
commit | 93bf62580a68533dc8252b9a2a055c02f34ecb67 (patch) | |
tree | 1b1ca92ebbe107a998136a1442c0dba5be885e13 /src/util | |
parent | 3e64dda5d5c350cc325650133f7e64967f1efe84 (diff) |
Modularized
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/lock.c | 20 | ||||
-rw-r--r-- | src/util/mutex.c | 110 | ||||
-rw-r--r-- | src/util/status.c | 133 | ||||
-rw-r--r-- | src/util/time.c | 76 |
4 files changed, 0 insertions, 339 deletions
diff --git a/src/util/lock.c b/src/util/lock.c deleted file mode 100644 index c9fe654..0000000 --- a/src/util/lock.c +++ /dev/null @@ -1,20 +0,0 @@ -#include <cpu.h> -#include <cpu/atomic/swap.h> -#include <util/mutex.h> -#include <util/lock.h> - -void lock(struct Lock* l) -{ - unsigned long mode = getmode() & 0x1F; - if (mode == 0x10) { - sys1(SYS_LOCK, l); - } -} - -void unlock(struct Lock* l) -{ - unsigned long mode = getmode() & 0x1F; - if (mode == 0x10) { - sys1(SYS_UNLOCK, l); - } -} diff --git a/src/util/mutex.c b/src/util/mutex.c deleted file mode 100644 index 8e85f8f..0000000 --- a/src/util/mutex.c +++ /dev/null @@ -1,110 +0,0 @@ -#include <cpu.h> -#include <drivers/uart.h> -#include <util/mutex.h> -#include <util/lock.h> -#include <globals.h> - -void mutex_init(void) -{ - for (unsigned long m = 0; m < MAX_MUTEXS; m++) { - mutexs[m].pid = 0; - mutexs[m].addr = 0; - mutex_entries[m].value = &mutexs[m]; - mutex_entries[m].entry_type = VALUE_ENTRY; - mutex_entries[m].next = &mutex_entries[m+1]; - } - // Initialize Free Mutexs - mutex_manager.free.start.value = 0; - mutex_manager.free.start.next = &mutex_entries[0]; - mutex_manager.free.start.entry_type = START_ENTRY; - mutex_manager.free.end.value = 0; - mutex_manager.free.end.next = &mutex_entries[MAX_MUTEXS-1]; - mutex_entries[MAX_MUTEXS-1].next = &mutex_manager.free.end; - mutex_manager.free.end.entry_type = END_ENTRY; - // Initialize In-use Mutexs - mutex_manager.used.start.value = 0; - mutex_manager.used.start.next = &mutex_manager.used.end; - mutex_manager.used.start.entry_type = START_ENTRY; - mutex_manager.used.end.value = 0; - mutex_manager.used.end.next = &mutex_manager.used.start; - mutex_manager.used.end.entry_type = END_ENTRY; -} - -struct Mutex* create_mutex(void* addr) -{ - struct Entry* e = pop_from_queue(&mutex_manager.free); - if (e == 0) - return 0; - struct Mutex* m = e->value; - m->pid = 0; - m->addr = addr; - push_to_queue(e, &mutex_manager.used); - return e->value; -} - -unsigned char delete_mutex(struct Mutex* m) -{ - struct Entry* entry = find_value(m, &mutex_manager.used); - if (entry == 0) - return 1; - // Remove it from the queue - struct Entry* theentry = remove_next_from_queue(entry); - // Add it to the free queue - prepend_to_queue(theentry, &mutex_manager.free); - return 0; -} - -void uart_mutexes(void) -{ - struct Entry* entry = mutex_manager.used.start.next; - while (entry->entry_type == VALUE_ENTRY) - { - struct Mutex* m = entry->value; - uart_hex((unsigned long)m); - uart_char(' '); - uart_hex(m->pid); - uart_char(' '); - uart_hexn((unsigned long)m->addr); - entry = entry->next; - } - unsigned long count = 0; - entry = mutex_manager.free.start.next; - while (entry->entry_type == VALUE_ENTRY) { - count++; - entry = entry->next; - } - uart_hexn(count); -} - -void lock_mutex(struct Mutex* m) -{ - struct Thread* rthread = scheduler.rthread; - unsigned long rpid = rthread->pid; - unsigned long mode = getmode() & 0x1F; - if (mode == 0x10) { - // Find this mutex - struct Entry* mentry = find_value(m, &mutex_manager.used); - // If it is not a managed mutex, break away - if (mentry == 0) - return; - struct Entry* entry = mutex_manager.used.start.next; - // Ensure this thread locks all mutexs sequentially - // To avoid a deadlock - while (entry->entry_type == VALUE_ENTRY) { - struct Mutex* vmutex = entry->value; - // If this thread had locked it - // Toggle the lock to prevent deadlock - if (vmutex->pid == rpid) { - sys1(SYS_UNLOCK, vmutex); - sys1(SYS_LOCK, vmutex); - } - entry = entry->next; - } - sys1(SYS_LOCK, m); - } -} - -void unlock_mutex(struct Mutex* m) -{ - unlock((struct Lock*)m); -} diff --git a/src/util/status.c b/src/util/status.c deleted file mode 100644 index 456e89d..0000000 --- a/src/util/status.c +++ /dev/null @@ -1,133 +0,0 @@ -#include <cpu.h> -#include <globals.h> -#include <graphics/lfb.h> -#include <symbols.h> -#include <lib/strings.h> -#include <lib/kmem.h> -#include <sys/core.h> -#include <sys/schedule.h> -#include <util/mutex.h> -#include <util/status.h> -#include <util/time.h> - -void output_irq_status(void) -{ - // Basic IRQ - unsigned long ib_val = load32(IRQ_BASIC_ENABLE); - // IRQ 1 - unsigned long i1_val = load32(IRQ_ENABLE1); - // IRQ 2 - unsigned long i2_val = load32(IRQ_ENABLE2); - // FIQ - unsigned long f_val = load32(FIQ_CONTROL); - - // Check GPU Interrupt Routing - unsigned long g_val = load32(GPU_INTERRUPTS_ROUTING); - draw_cletter(0, 1, (g_val & 0b11) + 0x30, 0x1EA1A1); - draw_cletter(1, 1, ((g_val >> 2) & 0b11) + 0x30, 0x1EA1A1); - - draw_chex32(4, 1, ib_val, 0x1EA1A1); - draw_chex32(4+9, 1, i1_val, 0x1EA1A1); - draw_chex32(4+9*2, 1, i2_val, 0x1EA1A1); - draw_chex32(4+9*3, 1, f_val, 0x1EA1A1); - - // Check UART IRQ - if (i2_val & (1<<25)) { - draw_cstring(0, 2, "UART", 0x00FF00); - } else if (f_val == 57) { - draw_cstring(0, 2, "UART", 0xFFA500); - } else { - draw_cstring(0, 2, "UART", 0xFF0000); - } - - // Check UART IRQ - if (i1_val & (1<<0)) { - draw_cstring(5, 2, "STIMERCMP", 0x00FF00); - } else if (f_val == 1) { - draw_cstring(5, 2, "STIMERCMP", 0xFFA500); - } else { - draw_cstring(5, 2, "STIMERCMP", 0xFF0000); - } - - if (load32(CORE0_TIMER_IRQCNTL) & 0xF) { - draw_cstring(4+9+2, 2, "LTIMER", 0x00FF00); - } else if (load32(CORE0_TIMER_IRQCNTL) & 0xF0) { - draw_cstring(4+9+2, 2, "LTIMER", 0xFFA500); - } else { - draw_cstring(4+9+2, 2, "LTIMER", 0xFF0000); - } -} - -void time_status(void) -{ - // Report Sys Timer Stataus - unsigned long systime; - draw_string(0, 8, "Sys Timer Status"); - systime = *(volatile unsigned long*)SYS_TIMER_CS; - draw_hex32(17, 8, systime); - draw_string(17+8, 8, ":"); - unsigned long long tval = get_time(); - draw_hex32(17+8, 8, (tval >> 32)); - draw_hex32(17+8+8, 8, tval); - systime = *(volatile unsigned long*)SYS_TIMER_C0; - draw_hex32(19+14+8+1, 8, systime); - draw_string(19+14+9+8, 8, "|"); - draw_string(19+14+18, 8, " "); - draw_u10(19+14+18, 8, ((unsigned long)tval)/1000000); -} - -void status(void) -{ - // OS Info - draw_cstring(7, 0, "v", 0x00FFFF); - draw_cstring(0, 0, os_name, 0xFF0000); - draw_cstring(8, 0, os_info_v, 0x00FFFF); - - // GPU IRQ Statuses - output_irq_status(); - - // Timer Status - draw_cstring(0, 3, "TIMER", 0x00FF00); - // Output the frequency - draw_string(6, 3, "@"); - unsigned long frq = read_cntfrq()/1000; - unsigned long fs_len = draw_u10(8, 3, frq) + 1; - draw_string(8+fs_len, 3, "kHz"); - // Output the value - unsigned long v = read_cntv_tval(); - unsigned long vs_len = draw_u10(8+fs_len+4, 3, v)+1; - draw_string(8+fs_len+4 +vs_len, 3, " "); - draw_letter(8+fs_len+4 +vs_len+1, 3, '|'); - draw_hex32(8+fs_len+7+vs_len, 3, v); - - // Video Status - draw_cstring(0, 4, "VIDEO", 0x00FF00); - unsigned long gw_len = draw_u10(6, 4, gwidth); - unsigned long gh_len = draw_u10(6+gw_len+1, 4, gheight) + 1; - draw_letter(6+gw_len, 4, 'x'); - if(gisrgb) - draw_string(6+gw_len+gh_len + 1, 4, "RGB"); - else - draw_string(6+gw_len+gh_len + 1, 4, "BGR"); - - // Core Stacks - draw_string(0, 5, "SVC IRQ FIQ User/SYS\n"); - unsigned long sp = (unsigned long)getsvcstack(); - draw_hex32(0, 6, sp); - sp = (unsigned long)getirqstack(); - draw_hex32(9, 6, sp); - sp = (unsigned long)getfiqstack(); - draw_hex32(9*2, 6, sp); - sp = (unsigned long)getsysstack(); - draw_hex32(9*3, 6, sp); - - // Report Core that updated status - unsigned long coren; - asm volatile ( - "mrc p15, #0, %0, c0, c0, #5\n" - "and %0, %0, #3" : "=r"(coren) :: "cc"); - draw_string(0, 7, "Status Updated by Core #"); - draw_hex32(24, 7, coren); - - time_status(); -} diff --git a/src/util/time.c b/src/util/time.c deleted file mode 100644 index abb9c8d..0000000 --- a/src/util/time.c +++ /dev/null @@ -1,76 +0,0 @@ -#include <symbols.h> -#include <sys/core.h> - -// CCNT - Cycle Timer (Close to ns resolution) - -void routing_core0cntv_to_core0fiq(void) -{ - store32(0x80, CORE0_TIMER_IRQCNTL); -} - -void routing_core0cntv_to_core0irq(void) -{ - store32(0x08, CORE0_TIMER_IRQCNTL); -} - -unsigned long read_core0timer_pending(void) -{ - unsigned long tmp; - tmp = load32(CORE0_IRQ_SOURCE); - return tmp; -} - -unsigned long long read_cntvct(void) -{ - unsigned long long val; - asm volatile("mrrc p15, 1, %Q0, %R0, c14" : "=r" (val)); - return (val); -} - -unsigned long long read_cntvoff(void) -{ - unsigned long long val; - asm volatile("mrrc p15, 4, %Q0, %R0, c14" : "=r" (val)); - return (val); -} - -unsigned long read_cntv_tval(void) -{ - unsigned long val; - asm volatile ("mrc p15, 0, %0, c14, c3, 0" : "=r"(val) ); - return val; -} - -void write_cntv_tval(unsigned long val) -{ - asm volatile ("mcr p15, 0, %0, c14, c3, 0" :: "r"(val) ); - return; -} - -unsigned long read_cntfrq(void) -{ - unsigned long val; - asm volatile ("mrc p15, 0, %0, c14, c0, 0" : "=r"(val) ); - return val; -} - -unsigned long long get_time(void) -{ - union { - unsigned long long tval; - struct { - unsigned long high; - unsigned long low; - } tvalb; - } t; - t.tvalb.low = *(unsigned long*)SYS_TIMER_CLO; - t.tvalb.high = *(unsigned long*)SYS_TIMER_CHI; - return t.tval; -} - -void wait_msec(unsigned int n) -{ - unsigned long start = *(volatile unsigned long*)SYS_TIMER_CHI; - while (*(volatile unsigned long*)SYS_TIMER_CHI - start < n) - asm volatile("nop"); -} |