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dpc: add dpc_prepare

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This commit is contained in:
iretq
2025-12-28 03:50:00 +01:00
parent a81ae88afb
commit 99d3374fc0
11 changed files with 45 additions and 27 deletions
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kernel-src/io/block/ahci.c
+4 -4
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@@ -204,7 +204,7 @@ void ahci_dpc(context_t *, dpcarg_t arg) {
}
// notify waiters about command completion
while (port_data->waiters[port_data->command_waiting] &&
while (port_data->waiters[port_data->command_waiting] &&
(port_data->ahci->ports[port].ci & (1 << port_data->command_waiting)) == 0) {
thread_t *thread = port_data->waiters[port_data->command_waiting];
port_data->waiters[port_data->command_waiting] = NULL;
@@ -230,7 +230,7 @@ void ahci_isr(isr_t *isr, context_t *) {
if (ahci->port_data[i] == NULL)
continue;
dpc_enqueue(&ahci->port_data[i]->dpc, ahci_dpc, ahci->port_data[i]);
dpc_enqueue(&ahci->port_data[i]->dpc, ahci->port_data[i]);
ports_pending &= ~(1 << i);
ahci->ports[i].is = ahci->ports[i].is;
@@ -413,7 +413,7 @@ static void init_port(ahci_t *ahci, int port) {
return;
}
ahci->port_data[port]->sector_count = (uint64_t)identify->lba48_size[0] | ((uint64_t)identify->lba48_size[1] << 16) |
ahci->port_data[port]->sector_count = (uint64_t)identify->lba48_size[0] | ((uint64_t)identify->lba48_size[1] << 16) |
((uint64_t)identify->lba48_size[2] << 32) | ((uint64_t)identify->lba48_size[3] << 48);
printf("ahci%dp%d: ATA drive with %lu sectors\n", ahci->id, port, ahci->port_data[port]->sector_count);
@@ -549,7 +549,6 @@ static void init_controller(pcienum_t *pci_enum) {
continue;
}
// program command list base
void *cmd_ptr = (void *)((uintptr_t)command_slot_mem + command_slot_offset);
memset(MAKE_HHDM(cmd_ptr), 0, 1024);
@@ -609,6 +608,7 @@ static void init_controller(pcienum_t *pci_enum) {
port_data->command_list = MAKE_HHDM(cmd_ptr);
SPINLOCK_INIT(port_data->command_lock);
SEMAPHORE_INIT(&port_data->command_semaphore, ahci->command_slot_count);
dpc_prepare(&port_data->dpc, ahci_dpc);
ahci->port_data[i] = port_data;
}