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-rw-r--r--debian/patches-rt/0069-serial-sunzilog-Use-port-lock-wrappers.patch211
1 files changed, 0 insertions, 211 deletions
diff --git a/debian/patches-rt/0069-serial-sunzilog-Use-port-lock-wrappers.patch b/debian/patches-rt/0069-serial-sunzilog-Use-port-lock-wrappers.patch
deleted file mode 100644
index dca4327a46..0000000000
--- a/debian/patches-rt/0069-serial-sunzilog-Use-port-lock-wrappers.patch
+++ /dev/null
@@ -1,211 +0,0 @@
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Thu, 14 Sep 2023 20:44:26 +0206
-Subject: [PATCH 069/134] serial: sunzilog: 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/20230914183831.587273-70-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/sunzilog.c | 42 +++++++++++++++++++++---------------------
- 1 file changed, 21 insertions(+), 21 deletions(-)
-
---- a/drivers/tty/serial/sunzilog.c
-+++ b/drivers/tty/serial/sunzilog.c
-@@ -531,7 +531,7 @@ static irqreturn_t sunzilog_interrupt(in
- struct tty_port *port;
- unsigned char r3;
-
-- spin_lock(&up->port.lock);
-+ uart_port_lock(&up->port);
- r3 = read_zsreg(channel, R3);
-
- /* Channel A */
-@@ -548,7 +548,7 @@ static irqreturn_t sunzilog_interrupt(in
- if (r3 & CHATxIP)
- sunzilog_transmit_chars(up, channel);
- }
-- spin_unlock(&up->port.lock);
-+ uart_port_unlock(&up->port);
-
- if (port)
- tty_flip_buffer_push(port);
-@@ -557,7 +557,7 @@ static irqreturn_t sunzilog_interrupt(in
- up = up->next;
- channel = ZILOG_CHANNEL_FROM_PORT(&up->port);
-
-- spin_lock(&up->port.lock);
-+ uart_port_lock(&up->port);
- port = NULL;
- if (r3 & (CHBEXT | CHBTxIP | CHBRxIP)) {
- writeb(RES_H_IUS, &channel->control);
-@@ -571,7 +571,7 @@ static irqreturn_t sunzilog_interrupt(in
- if (r3 & CHBTxIP)
- sunzilog_transmit_chars(up, channel);
- }
-- spin_unlock(&up->port.lock);
-+ uart_port_unlock(&up->port);
-
- if (port)
- tty_flip_buffer_push(port);
-@@ -604,11 +604,11 @@ static unsigned int sunzilog_tx_empty(st
- unsigned char status;
- unsigned int ret;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- status = sunzilog_read_channel_status(port);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
-
- if (status & Tx_BUF_EMP)
- ret = TIOCSER_TEMT;
-@@ -764,7 +764,7 @@ static void sunzilog_break_ctl(struct ua
- else
- clear_bits |= SND_BRK;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- new_reg = (up->curregs[R5] | set_bits) & ~clear_bits;
- if (new_reg != up->curregs[R5]) {
-@@ -774,7 +774,7 @@ static void sunzilog_break_ctl(struct ua
- write_zsreg(channel, R5, up->curregs[R5]);
- }
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- static void __sunzilog_startup(struct uart_sunzilog_port *up)
-@@ -800,9 +800,9 @@ static int sunzilog_startup(struct uart_
- if (ZS_IS_CONS(up))
- return 0;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
- __sunzilog_startup(up);
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- return 0;
- }
-
-@@ -840,7 +840,7 @@ static void sunzilog_shutdown(struct uar
- if (ZS_IS_CONS(up))
- return;
-
-- spin_lock_irqsave(&port->lock, flags);
-+ uart_port_lock_irqsave(port, &flags);
-
- channel = ZILOG_CHANNEL_FROM_PORT(port);
-
-@@ -853,7 +853,7 @@ static void sunzilog_shutdown(struct uar
- up->curregs[R5] &= ~SND_BRK;
- sunzilog_maybe_update_regs(up, channel);
-
-- spin_unlock_irqrestore(&port->lock, flags);
-+ uart_port_unlock_irqrestore(port, flags);
- }
-
- /* Shared by TTY driver and serial console setup. The port lock is held
-@@ -945,7 +945,7 @@ sunzilog_set_termios(struct uart_port *p
-
- baud = uart_get_baud_rate(port, termios, old, 1200, 76800);
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- brg = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
-
-@@ -962,7 +962,7 @@ sunzilog_set_termios(struct uart_port *p
-
- uart_update_timeout(port, termios->c_cflag, baud);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- static const char *sunzilog_type(struct uart_port *port)
-@@ -1201,15 +1201,15 @@ sunzilog_console_write(struct console *c
- int locked = 1;
-
- if (up->port.sysrq || oops_in_progress)
-- locked = spin_trylock_irqsave(&up->port.lock, flags);
-+ locked = uart_port_trylock_irqsave(&up->port, &flags);
- else
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- uart_console_write(&up->port, s, count, sunzilog_putchar);
- udelay(2);
-
- if (locked)
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
- }
-
- static int __init sunzilog_console_setup(struct console *con, char *options)
-@@ -1244,7 +1244,7 @@ static int __init sunzilog_console_setup
-
- brg = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
-
- up->curregs[R15] |= BRKIE;
- sunzilog_convert_to_zs(up, con->cflag, 0, brg);
-@@ -1252,7 +1252,7 @@ static int __init sunzilog_console_setup
- sunzilog_set_mctrl(&up->port, TIOCM_DTR | TIOCM_RTS);
- __sunzilog_startup(up);
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
-
- return 0;
- }
-@@ -1333,7 +1333,7 @@ static void sunzilog_init_hw(struct uart
-
- channel = ZILOG_CHANNEL_FROM_PORT(&up->port);
-
-- spin_lock_irqsave(&up->port.lock, flags);
-+ uart_port_lock_irqsave(&up->port, &flags);
- if (ZS_IS_CHANNEL_A(up)) {
- write_zsreg(channel, R9, FHWRES);
- ZSDELAY_LONG();
-@@ -1383,7 +1383,7 @@ static void sunzilog_init_hw(struct uart
- write_zsreg(channel, R9, up->curregs[R9]);
- }
-
-- spin_unlock_irqrestore(&up->port.lock, flags);
-+ uart_port_unlock_irqrestore(&up->port, flags);
-
- #ifdef CONFIG_SERIO
- if (up->flags & (SUNZILOG_FLAG_CONS_KEYB |
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 06:53:19 +0000