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-rw-r--r--debian/patches-rt/0012-serial-8250_omap-Use-port-lock-wrappers.patch236
1 files changed, 0 insertions, 236 deletions
diff --git a/debian/patches-rt/0012-serial-8250_omap-Use-port-lock-wrappers.patch b/debian/patches-rt/0012-serial-8250_omap-Use-port-lock-wrappers.patch
deleted file mode 100644
index 10ebd70ea..000000000
--- a/debian/patches-rt/0012-serial-8250_omap-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,236 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:43:29 +0206
-Subject: [PATCH 012/134] serial: 8250_omap: Use port lock wrappers
-Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.6/older/patches-6.6.7-rt18.tar.xz
-
-When a serial port is used for kernel console output, then all
-modifications to the UART registers which are done from other contexts,
-e.g. getty, termios, are interference points for the kernel console.
-
-So far this has been ignored and the printk output is based on the
-principle of hope. The rework of the console infrastructure which aims to
-support threaded and atomic consoles, requires to mark sections which
-modify the UART registers as unsafe. This allows the atomic write function
-to make informed decisions and eventually to restore operational state. It
-also allows to prevent the regular UART code from modifying UART registers
-while printk output is in progress.
-
-All modifications of UART registers are guarded by the UART port lock,
-which provides an obvious synchronization point with the console
-infrastructure.
-
-To avoid adding this functionality to all UART drivers, wrap the
-spin_[un]lock*() invocations for uart_port::lock into helper functions
-which just contain the spin_[un]lock*() invocations for now. In a
-subsequent step these helpers will gain the console synchronization
-mechanisms.
-
-Converted with coccinelle. No functional change.
-
-Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
-Link: https://lore.kernel.org/r/20230914183831.587273-13-john.ogness@linutronix.de
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
----
- drivers/tty/serial/8250/8250_omap.c | 52 ++++++++++++++++++------------------
- 1 file changed, 26 insertions(+), 26 deletions(-)
-
---- a/drivers/tty/serial/8250/8250_omap.c
-+++ b/drivers/tty/serial/8250/8250_omap.c
-@@ -401,7 +401,7 @@ static void omap_8250_set_termios(struct
- * interrupts disabled.
- */
- pm_runtime_get_sync(port->dev);
-- spin_lock_irq(&port->lock);
-+ uart_port_lock_irq(port);
-
- /*
- * Update the per-port timeout.
-@@ -504,7 +504,7 @@ static void omap_8250_set_termios(struct
- }
- omap8250_restore_regs(up);
-
-- spin_unlock_irq(&up->port.lock);
-+ uart_port_unlock_irq(&up->port);
- pm_runtime_mark_last_busy(port->dev);
- pm_runtime_put_autosuspend(port->dev);
-
-@@ -529,7 +529,7 @@ static void omap_8250_pm(struct uart_por
- pm_runtime_get_sync(port->dev);
-
- /* Synchronize UART_IER access against the console. */
-- spin_lock_irq(&port->lock);
-+ uart_port_lock_irq(port);
-
- serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
- efr = serial_in(up, UART_EFR);
-@@ -541,7 +541,7 @@ static void omap_8250_pm(struct uart_por
- serial_out(up, UART_EFR, efr);
- serial_out(up, UART_LCR, 0);
-
-- spin_unlock_irq(&port->lock);
-+ uart_port_unlock_irq(port);
-
- pm_runtime_mark_last_busy(port->dev);
- pm_runtime_put_autosuspend(port->dev);
-@@ -660,7 +660,7 @@ static irqreturn_t omap8250_irq(int irq,
- unsigned long delay;
-
- /* Synchronize UART_IER access against the console. */
-- spin_lock(&port->lock);
-+ uart_port_lock(port);
- up->ier = port->serial_in(port, UART_IER);
- if (up->ier & (UART_IER_RLSI | UART_IER_RDI)) {
- port->ops->stop_rx(port);
-@@ -670,7 +670,7 @@ static irqreturn_t omap8250_irq(int irq,
- */
- cancel_delayed_work(&up->overrun_backoff);
- }
-- spin_unlock(&port->lock);
-+ uart_port_unlock(port);
-
- delay = msecs_to_jiffies(up->overrun_backoff_time_ms);
- schedule_delayed_work(&up->overrun_backoff, delay);
-@@ -717,10 +717,10 @@ static int omap_8250_startup(struct uart
- }
-
- /* Synchronize UART_IER access against the console. */
-- spin_lock_irq(&port->lock);
-+ uart_port_lock_irq(port);
- up->ier = UART_IER_RLSI | UART_IER_RDI;
- serial_out(up, UART_IER, up->ier);
-- spin_unlock_irq(&port->lock);
-+ uart_port_unlock_irq(port);
-
- #ifdef CONFIG_PM
- up->capabilities |= UART_CAP_RPM;
-@@ -733,9 +733,9 @@ static int omap_8250_startup(struct uart
- serial_out(up, UART_OMAP_WER, priv->wer);
-
- if (up->dma && !(priv->habit & UART_HAS_EFR2)) {
-- spin_lock_irq(&port->lock);
-+ uart_port_lock_irq(port);
- up->dma->rx_dma(up);
-- spin_unlock_irq(&port->lock);
-+ uart_port_unlock_irq(port);
- }
-
- enable_irq(up->port.irq);
-@@ -761,10 +761,10 @@ static void omap_8250_shutdown(struct ua
- serial_out(up, UART_OMAP_EFR2, 0x0);
-
- /* Synchronize UART_IER access against the console. */
-- spin_lock_irq(&port->lock);
-+ uart_port_lock_irq(port);
- up->ier = 0;
- serial_out(up, UART_IER, 0);
-- spin_unlock_irq(&port->lock);
-+ uart_port_unlock_irq(port);
- disable_irq_nosync(up->port.irq);
- dev_pm_clear_wake_irq(port->dev);
-
-@@ -789,10 +789,10 @@ static void omap_8250_throttle(struct ua
-
- pm_runtime_get_sync(port->dev);
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- port->ops->stop_rx(port);
- priv->throttled = true;
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- pm_runtime_mark_last_busy(port->dev);
- pm_runtime_put_autosuspend(port->dev);
-@@ -807,14 +807,14 @@ static void omap_8250_unthrottle(struct
- pm_runtime_get_sync(port->dev);
-
- /* Synchronize UART_IER access against the console. */
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- priv->throttled = false;
- if (up->dma)
- up->dma->rx_dma(up);
- up->ier |= UART_IER_RLSI | UART_IER_RDI;
- port->read_status_mask |= UART_LSR_DR;
- serial_out(up, UART_IER, up->ier);
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- pm_runtime_mark_last_busy(port->dev);
- pm_runtime_put_autosuspend(port->dev);
-@@ -958,7 +958,7 @@ static void __dma_rx_complete(void *para
- unsigned long flags;
-
- /* Synchronize UART_IER access against the console. */
-- spin_lock_irqsave(&p->port.lock, flags);
-+ uart_port_lock_irqsave(&p->port, &flags);
-
- /*
- * If the tx status is not DMA_COMPLETE, then this is a delayed
-@@ -967,7 +967,7 @@ static void __dma_rx_complete(void *para
- */
- if (dmaengine_tx_status(dma->rxchan, dma->rx_cookie, &state) !=
- DMA_COMPLETE) {
-- spin_unlock_irqrestore(&p->port.lock, flags);
-+ uart_port_unlock_irqrestore(&p->port, flags);
- return;
- }
- __dma_rx_do_complete(p);
-@@ -978,7 +978,7 @@ static void __dma_rx_complete(void *para
- omap_8250_rx_dma(p);
- }
-
-- spin_unlock_irqrestore(&p->port.lock, flags);
-+ uart_port_unlock_irqrestore(&p->port, flags);
- }
-
- static void omap_8250_rx_dma_flush(struct uart_8250_port *p)
-@@ -1083,7 +1083,7 @@ static void omap_8250_dma_tx_complete(vo
- dma_sync_single_for_cpu(dma->txchan->device->dev, dma->tx_addr,
- UART_XMIT_SIZE, DMA_TO_DEVICE);
-
-- spin_lock_irqsave(&p->port.lock, flags);
-+ uart_port_lock_irqsave(&p->port, &flags);
-
- dma->tx_running = 0;
-
-@@ -1112,7 +1112,7 @@ static void omap_8250_dma_tx_complete(vo
- serial8250_set_THRI(p);
- }
-
-- spin_unlock_irqrestore(&p->port.lock, flags);
-+ uart_port_unlock_irqrestore(&p->port, flags);
- }
-
- static int omap_8250_tx_dma(struct uart_8250_port *p)
-@@ -1278,7 +1278,7 @@ static int omap_8250_dma_handle_irq(stru
- return IRQ_HANDLED;
- }
-
-- spin_lock(&port->lock);
-+ uart_port_lock(port);
-
- status = serial_port_in(port, UART_LSR);
-
-@@ -1756,15 +1756,15 @@ static int omap8250_runtime_resume(struc
- up = serial8250_get_port(priv->line);
-
- if (up && omap8250_lost_context(up)) {
-- spin_lock_irq(&up->port.lock);
-+ uart_port_lock_irq(&up->port);
- omap8250_restore_regs(up);
-- spin_unlock_irq(&up->port.lock);
-+ uart_port_unlock_irq(&up->port);
- }
-
- if (up && up->dma && up->dma->rxchan && !(priv->habit & UART_HAS_EFR2)) {
-- spin_lock_irq(&up->port.lock);
-+ uart_port_lock_irq(&up->port);
- omap_8250_rx_dma(up);
-- spin_unlock_irq(&up->port.lock);
-+ uart_port_unlock_irq(&up->port);
- }
-
- priv->latency = priv->calc_latency;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-07 21:17:59 +0000