diff options
Diffstat (limited to 'debian/patches-rt/0100-serial-8250-implement-write_atomic.patch')
-rw-r--r-- | debian/patches-rt/0100-serial-8250-implement-write_atomic.patch | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/debian/patches-rt/0100-serial-8250-implement-write_atomic.patch b/debian/patches-rt/0100-serial-8250-implement-write_atomic.patch index ad692ff78..883c87ee1 100644 --- a/debian/patches-rt/0100-serial-8250-implement-write_atomic.patch +++ b/debian/patches-rt/0100-serial-8250-implement-write_atomic.patch @@ -1,8 +1,8 @@ -From 713182575337acb0891fcfaef75c3a36408d1766 Mon Sep 17 00:00:00 2001 +From f535d09d2867742a783be392b633b75d923ef748 Mon Sep 17 00:00:00 2001 From: John Ogness <john.ogness@linutronix.de> Date: Mon, 30 Nov 2020 01:42:02 +0106 Subject: [PATCH 100/323] serial: 8250: implement write_atomic -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.215-rt107.tar.xz Implement a non-sleeping NMI-safe write_atomic() console function in order to support emergency console printing. @@ -27,7 +27,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> 7 files changed, 162 insertions(+), 44 deletions(-) diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h -index 61b11490ae5b..32c534b87397 100644 +index 61b11490ae5be..32c534b87397f 100644 --- a/drivers/tty/serial/8250/8250.h +++ b/drivers/tty/serial/8250/8250.h @@ -152,12 +152,55 @@ static inline void serial_dl_write(struct uart_8250_port *up, int value) @@ -97,7 +97,7 @@ index 61b11490ae5b..32c534b87397 100644 } diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c -index 43f2eed6df78..687119fe2f8c 100644 +index 355ee338d752c..5c1bb9e06b14e 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -275,10 +275,8 @@ static void serial8250_backup_timeout(struct timer_list *t) @@ -146,7 +146,7 @@ index 43f2eed6df78..687119fe2f8c 100644 .device = uart_console_device, .setup = univ8250_console_setup, diff --git a/drivers/tty/serial/8250/8250_fsl.c b/drivers/tty/serial/8250/8250_fsl.c -index fbcc90c31ca1..b33cb454ce03 100644 +index fbcc90c31ca11..b33cb454ce037 100644 --- a/drivers/tty/serial/8250/8250_fsl.c +++ b/drivers/tty/serial/8250/8250_fsl.c @@ -60,9 +60,18 @@ int fsl8250_handle_irq(struct uart_port *port) @@ -169,7 +169,7 @@ index fbcc90c31ca1..b33cb454ce03 100644 port->ops->stop_rx(port); } else { diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/serial/8250/8250_ingenic.c -index 988bf6bcce42..bcd26d672539 100644 +index 988bf6bcce42d..bcd26d6725395 100644 --- a/drivers/tty/serial/8250/8250_ingenic.c +++ b/drivers/tty/serial/8250/8250_ingenic.c @@ -146,6 +146,8 @@ OF_EARLYCON_DECLARE(x1000_uart, "ingenic,x1000-uart", @@ -195,7 +195,7 @@ index 988bf6bcce42..bcd26d672539 100644 if (ier & UART_IER_MSI) value |= UART_MCR_MDCE | UART_MCR_FCM; diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c -index de48a58460f4..d246f2755fed 100644 +index de48a58460f47..d246f2755feda 100644 --- a/drivers/tty/serial/8250/8250_mtk.c +++ b/drivers/tty/serial/8250/8250_mtk.c @@ -222,12 +222,37 @@ static void mtk8250_shutdown(struct uart_port *port) @@ -239,7 +239,7 @@ index de48a58460f4..d246f2755fed 100644 static void mtk8250_set_flow_ctrl(struct uart_8250_port *up, int mode) diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c -index 8b49ac4856d2..947737d0e46b 100644 +index 6098e87a34046..8eee07321a560 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -730,7 +730,7 @@ static void serial8250_set_sleep(struct uart_8250_port *p, int sleep) @@ -251,7 +251,7 @@ index 8b49ac4856d2..947737d0e46b 100644 if (p->capabilities & UART_CAP_EFR) { serial_out(p, UART_LCR, UART_LCR_CONF_MODE_B); serial_out(p, UART_EFR, efr); -@@ -1405,7 +1405,7 @@ static void serial8250_stop_rx(struct uart_port *port) +@@ -1399,7 +1399,7 @@ static void serial8250_stop_rx(struct uart_port *port) up->ier &= ~(UART_IER_RLSI | UART_IER_RDI); up->port.read_status_mask &= ~UART_LSR_DR; @@ -260,7 +260,7 @@ index 8b49ac4856d2..947737d0e46b 100644 serial8250_rpm_put(up); } -@@ -1435,7 +1435,7 @@ void serial8250_em485_stop_tx(struct uart_8250_port *p) +@@ -1429,7 +1429,7 @@ void serial8250_em485_stop_tx(struct uart_8250_port *p) serial8250_clear_and_reinit_fifos(p); p->ier |= UART_IER_RLSI | UART_IER_RDI; @@ -269,7 +269,7 @@ index 8b49ac4856d2..947737d0e46b 100644 } } EXPORT_SYMBOL_GPL(serial8250_em485_stop_tx); -@@ -1677,7 +1677,7 @@ static void serial8250_disable_ms(struct uart_port *port) +@@ -1671,7 +1671,7 @@ static void serial8250_disable_ms(struct uart_port *port) mctrl_gpio_disable_ms(up->gpios); up->ier &= ~UART_IER_MSI; @@ -278,7 +278,7 @@ index 8b49ac4856d2..947737d0e46b 100644 } static void serial8250_enable_ms(struct uart_port *port) -@@ -1693,7 +1693,7 @@ static void serial8250_enable_ms(struct uart_port *port) +@@ -1687,7 +1687,7 @@ static void serial8250_enable_ms(struct uart_port *port) up->ier |= UART_IER_MSI; serial8250_rpm_get(up); @@ -287,7 +287,7 @@ index 8b49ac4856d2..947737d0e46b 100644 serial8250_rpm_put(up); } -@@ -2129,14 +2129,7 @@ static void serial8250_put_poll_char(struct uart_port *port, +@@ -2123,14 +2123,7 @@ static void serial8250_put_poll_char(struct uart_port *port, struct uart_8250_port *up = up_to_u8250p(port); serial8250_rpm_get(up); @@ -303,7 +303,7 @@ index 8b49ac4856d2..947737d0e46b 100644 wait_for_xmitr(up, BOTH_EMPTY); /* -@@ -2149,7 +2142,7 @@ static void serial8250_put_poll_char(struct uart_port *port, +@@ -2143,7 +2136,7 @@ static void serial8250_put_poll_char(struct uart_port *port, * and restore the IER */ wait_for_xmitr(up, BOTH_EMPTY); @@ -312,7 +312,7 @@ index 8b49ac4856d2..947737d0e46b 100644 serial8250_rpm_put(up); } -@@ -2454,7 +2447,7 @@ void serial8250_do_shutdown(struct uart_port *port) +@@ -2448,7 +2441,7 @@ void serial8250_do_shutdown(struct uart_port *port) */ spin_lock_irqsave(&port->lock, flags); up->ier = 0; @@ -321,7 +321,7 @@ index 8b49ac4856d2..947737d0e46b 100644 spin_unlock_irqrestore(&port->lock, flags); synchronize_irq(port->irq); -@@ -2806,7 +2799,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, +@@ -2800,7 +2793,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, if (up->capabilities & UART_CAP_RTOIE) up->ier |= UART_IER_RTOIE; @@ -330,7 +330,7 @@ index 8b49ac4856d2..947737d0e46b 100644 if (up->capabilities & UART_CAP_EFR) { unsigned char efr = 0; -@@ -3271,7 +3264,7 @@ EXPORT_SYMBOL_GPL(serial8250_set_defaults); +@@ -3265,7 +3258,7 @@ EXPORT_SYMBOL_GPL(serial8250_set_defaults); #ifdef CONFIG_SERIAL_8250_CONSOLE @@ -339,7 +339,7 @@ index 8b49ac4856d2..947737d0e46b 100644 { struct uart_8250_port *up = up_to_u8250p(port); -@@ -3279,6 +3272,18 @@ static void serial8250_console_putchar(struct uart_port *port, int ch) +@@ -3273,6 +3266,18 @@ static void serial8250_console_putchar(struct uart_port *port, int ch) serial_port_out(port, UART_TX, ch); } @@ -358,7 +358,7 @@ index 8b49ac4856d2..947737d0e46b 100644 /* * Restore serial console when h/w power-off detected */ -@@ -3305,6 +3310,32 @@ static void serial8250_console_restore(struct uart_8250_port *up) +@@ -3299,6 +3304,32 @@ static void serial8250_console_restore(struct uart_8250_port *up) serial8250_out_MCR(up, up->mcr | UART_MCR_DTR | UART_MCR_RTS); } @@ -391,7 +391,7 @@ index 8b49ac4856d2..947737d0e46b 100644 /* * Print a string to the serial port trying not to disturb * any possible real use of the port... -@@ -3321,24 +3352,12 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, +@@ -3315,24 +3346,12 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, struct uart_port *port = &up->port; unsigned long flags; unsigned int ier; @@ -418,7 +418,7 @@ index 8b49ac4856d2..947737d0e46b 100644 /* check scratch reg to see if port powered off during system sleep */ if (up->canary && (up->canary != serial_port_in(port, UART_SCR))) { -@@ -3352,7 +3371,9 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, +@@ -3346,7 +3365,9 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, mdelay(port->rs485.delay_rts_before_send); } @@ -428,7 +428,7 @@ index 8b49ac4856d2..947737d0e46b 100644 /* * Finally, wait for transmitter to become empty -@@ -3365,8 +3386,7 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, +@@ -3359,8 +3380,7 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, if (em485->tx_stopped) up->rs485_stop_tx(up); } @@ -438,7 +438,7 @@ index 8b49ac4856d2..947737d0e46b 100644 /* * The receive handling will happen properly because the -@@ -3378,8 +3398,7 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, +@@ -3372,8 +3392,7 @@ void serial8250_console_write(struct uart_8250_port *up, const char *s, if (up->msr_saved_flags) serial8250_modem_status(up); @@ -448,7 +448,7 @@ index 8b49ac4856d2..947737d0e46b 100644 } static unsigned int probe_baud(struct uart_port *port) -@@ -3399,6 +3418,7 @@ static unsigned int probe_baud(struct uart_port *port) +@@ -3393,6 +3412,7 @@ static unsigned int probe_baud(struct uart_port *port) int serial8250_console_setup(struct uart_port *port, char *options, bool probe) { @@ -456,7 +456,7 @@ index 8b49ac4856d2..947737d0e46b 100644 int baud = 9600; int bits = 8; int parity = 'n'; -@@ -3408,6 +3428,8 @@ int serial8250_console_setup(struct uart_port *port, char *options, bool probe) +@@ -3402,6 +3422,8 @@ int serial8250_console_setup(struct uart_port *port, char *options, bool probe) if (!port->iobase && !port->membase) return -ENODEV; @@ -466,7 +466,7 @@ index 8b49ac4856d2..947737d0e46b 100644 uart_parse_options(options, &baud, &parity, &bits, &flow); else if (probe) diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h -index abb928361270..77de68ed2d60 100644 +index abb928361270e..77de68ed2d606 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -7,6 +7,7 @@ @@ -496,5 +496,5 @@ index abb928361270..77de68ed2d60 100644 int serial8250_console_exit(struct uart_port *port); -- -2.43.0 +2.44.0 |