diff options
| author | Ian Moffett <ian@osmora.org> | 2024-06-02 21:55:35 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2024-06-02 22:08:16 -0400 |
| commit | eebca89bf99b4cd835df42d8ce36b42220f9c643 (patch) | |
| tree | 142f16bd7321eadcfd0663b47e924a6a1ddba600 /sys/dev/ic | |
| parent | 312b5687c905a7614cdd1e5080a69bd12cbc95b4 (diff) | |
kernel: ahci: Acquire global "io_lock" during cmd
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/dev/ic')
| -rw-r--r-- | sys/dev/ic/ahci.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/dev/ic/ahci.c b/sys/dev/ic/ahci.c index e7b2b7e..e140636 100644 --- a/sys/dev/ic/ahci.c +++ b/sys/dev/ic/ahci.c @@ -48,6 +48,7 @@ __KERNEL_META("$Hyra$: ahci.c, Ian Marco Moffett, " static struct pci_device *dev; static struct timer driver_tmr; +static struct mutex io_lock; /* * Poll register to have `bits' set/unset. @@ -271,7 +272,7 @@ ahci_submit_cmd(struct ahci_hba *hba, struct hba_port *port, uint8_t cmdslot) } /* Activate the command slot */ - mutex_acquire(&hba->lock); + mutex_acquire(&io_lock); mmio_write32(&port->ci, __BIT(cmdslot)); /* @@ -291,7 +292,7 @@ ahci_submit_cmd(struct ahci_hba *hba, struct hba_port *port, uint8_t cmdslot) pr_error("IDENTIFY timeout: slot %d still set!\n", cmdslot); } - mutex_release(&hba->lock); + mutex_release(&io_lock); return status; } |