On Thu, Mar 30, 2006 at 06:33:22PM +0000, Marcel Moolenaar wrote: +> marcel 2006-03-30 18:33:22 UTC +> +> FreeBSD src repository +> +> Added files: +> share/man/man4 scc.4 +> sys/dev/uart uart_bus_scc.c +> sys/kern serdev_if.m +> sys/dev/scc scc_bfe.h scc_bfe_ebus.c scc_bfe_sbus.c +> scc_bus.h scc_core.c scc_dev_sab82532.c +> scc_dev_z8530.c scc_if.m +> sys/modules/scc Makefile +> Log: +> Add scc(4), a driver for serial communications controllers. These +> controllers typically have multiple channels and support a number +> of serial communications protocols. The scc(4) driver is itself +> an umbrella driver that delegates the control over each channel +> and mode to a subordinate driver (like uart(4)). +> The scc(4) driver supports the Siemens SAB 82532 and the Zilog +> Z8530 and replaces puc(4) for these devices.
My hero!:) I just tried it out on dual CPU Ultra2: scc0: <Zilog Z8530 dual channel SCC> mem 0x1100000-0x1100003 irq 2024 on sbus0 scc0: [FAST] uart0: <z8530, channel A> on scc0 uart0: [FAST] uart0: console (9600,n,8,1) uart1: <z8530, channel B> on scc0 uart1: [FAST] scc1: <Zilog Z8530 dual channel SCC> mem 0x1000000-0x1000003 irq 2024 on sbus0 scc1: [FAST] uart2: <z8530, channel A> on scc1 uart2: [FAST] uart2: keyboard (1200,n,8,1) uart2: keyboard not present uart3: <z8530, channel B> on scc1 uart3: [FAST] It works, but much more important is that I can't deadlock the system anymore when trying to load gmirror, which printfs from two CPUs at the same time. Before this change, the system deadlocked hard every time I tried to load gmirror on this SMP-enabled machine. Thank you! -- Pawel Jakub Dawidek http://www.wheel.pl [EMAIL PROTECTED] http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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