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opnsense-src/sys/dev/uart
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Alexander Motin 3a97344265 Relax TX draining in ns8250_bus_transmit(). 
Since TX interrupt is generated when THRE is set, wait for TEMT set means
wait for full character transmission time.  At low speeds that may take
awhile, burning CPU time while holding sc_hwmtx lock, also congested.

This is partial revert of r317659.

PR:		240121
MFC after:	2 weeks
2019-09-15 23:56:39 +00:00
..
uart.h Add busy detect quirk to list of console options 2018-07-22 23:32:21 +00:00
uart_bus.h Add quirk for ignoring SPCR AccessWidth values on the PL011 UART 2019-04-15 13:41:53 +00:00
uart_bus_acpi.c Remove All Rights Reserved 2019-02-05 21:37:34 +00:00
uart_bus_ebus.c add snps IP uart support / genaralize UART 2018-08-19 21:10:21 +00:00
uart_bus_fdt.c add snps IP uart support / genaralize UART 2018-08-19 21:10:21 +00:00
uart_bus_isa.c add snps IP uart support / genaralize UART 2018-08-19 21:10:21 +00:00
uart_bus_pccard.c Remove All Rights Reserved 2019-02-05 21:37:34 +00:00
uart_bus_pci.c Recognize the Amazon PCI serial device found in a1.* EC2 instances 2019-03-21 08:54:34 +00:00
uart_bus_puc.c Remove All Rights Reserved 2019-02-05 21:37:34 +00:00
uart_bus_scc.c add snps IP uart support / genaralize UART 2018-08-19 21:10:21 +00:00
uart_core.c add snps IP uart support / genaralize UART 2018-08-19 21:10:21 +00:00
uart_cpu.h sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_cpu_acpi.c uart_cpu_acpi: Fix GCC build break from r348195 2019-05-23 20:18:46 +00:00
uart_cpu_acpi.h Use ACPI SPCR on x86 2019-05-23 19:55:53 +00:00
uart_cpu_arm64.c Use ACPI SPCR on x86 2019-05-23 19:55:53 +00:00
uart_cpu_fdt.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_cpu_fdt.h
uart_cpu_powerpc.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_cpu_sparc64.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_cpu_x86.c Use ACPI SPCR on x86 2019-05-23 19:55:53 +00:00
uart_dbg.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_dev_imx.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_dev_imx.h
uart_dev_lowrisc.c Add support for the UART device found in lowRISC system-on-a-chip. 2018-10-12 15:19:41 +00:00
uart_dev_lowrisc.h Add support for the UART device found in lowRISC system-on-a-chip. 2018-10-12 15:19:41 +00:00
uart_dev_msm.c Support for UART device found in Qualcomm Snapdragon 410E SoC. 2018-01-18 17:43:32 +00:00
uart_dev_msm.h UART Clock Selection Register holds a divider value for a supplied clock, 2018-01-18 18:19:31 +00:00
uart_dev_mu.c Add a driver for the BCM2835 Mini-UART as seen on the RPi3 2018-06-12 13:26:31 +00:00
uart_dev_mvebu.c Disable EARLY_PRINTF from the Armada 3700 uart, it breaks when we want 2018-02-01 15:05:17 +00:00
uart_dev_ns8250.c Relax TX draining in ns8250_bus_transmit(). 2019-09-15 23:56:39 +00:00
uart_dev_ns8250.h sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_dev_pl011.c Add quirk for ignoring SPCR AccessWidth values on the PL011 UART 2019-04-15 13:41:53 +00:00
uart_dev_quicc.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_dev_sab82532.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_dev_snps.c Update Armada 38x UART device tree binding 2018-10-10 10:34:17 +00:00
uart_dev_ti8250.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_dev_z8530.c sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_if.m
uart_kbd_sun.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
uart_kbd_sun.h sys/dev: further adoption of SPDX licensing ID tags. 2017-11-27 14:52:40 +00:00
uart_kbd_sun_tables.h
uart_ppstypes.h
uart_subr.c Add busy detect quirk to list of console options 2018-07-22 23:32:21 +00:00
uart_tty.c Some devices take undesired actions when RTS and DTR are 2019-06-12 18:07:04 +00:00