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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-24 15:01:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-24 15:01:17 -0800 |
| commit | f8e6859ea9d06ae1565b21278c4e10fbce5f1eab (patch) | |
| tree | 263f1ec8127fa4f38e080eebdfe4cfa26d6679e2 /drivers/tty/serial/sunhv.c | |
| parent | a682e0035494c449e53a57d039f86f75b9e2fe67 (diff) | |
| parent | ac65e2828d03ddf84e9fe1fb6d110d8de933dc22 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc updates from David Miller:
1) Support multiple huge page sizes, from Nitin Gupta.
2) Improve boot time on large memory configurations, from Pavel
Tatashin.
3) Make BRK handling more consistent and documented, from Vijay Kumar.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix build error in flush_tsb_user_page
sparc64: memblock resizes are not handled properly
sparc64: use latency groups to improve add_node_ranges speed
sparc64: Add 64K page size support
sparc64: Multi-page size support
Documentation/sparc: Steps for sending break on sunhv console
sparc64: Send break twice from console to return to boot prom
sparc64: Migrate hvcons irq to panicked cpu
sparc64: Set cpu state to offline when stopped
sunvdc: Add support for setting physical sector size
sparc64: fix for user probes in high memory
sparc: topology_64.h: Fix condition for including cpudata.h
sparc32: mm: srmmu: add __ro_after_init to sparc32_cachetlb_ops structures
Diffstat (limited to 'drivers/tty/serial/sunhv.c')
| -rw-r--r-- | drivers/tty/serial/sunhv.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c index 73abd89c0108..46e46894e918 100644 --- a/drivers/tty/serial/sunhv.c +++ b/drivers/tty/serial/sunhv.c @@ -116,7 +116,7 @@ static int receive_chars_getchar(struct uart_port *port) static int receive_chars_read(struct uart_port *port) { - int saw_console_brk = 0; + static int saw_console_brk; int limit = 10000; while (limit-- > 0) { @@ -128,6 +128,9 @@ static int receive_chars_read(struct uart_port *port) bytes_read = 0; if (stat == CON_BREAK) { + if (saw_console_brk) + sun_do_break(); + if (uart_handle_break(port)) continue; saw_console_brk = 1; @@ -151,6 +154,7 @@ static int receive_chars_read(struct uart_port *port) if (port->sysrq != 0 && *con_read_page) { for (i = 0; i < bytes_read; i++) uart_handle_sysrq_char(port, con_read_page[i]); + saw_console_brk = 0; } if (port->state == NULL) @@ -398,6 +402,12 @@ static struct uart_driver sunhv_reg = { static struct uart_port *sunhv_port; +void sunhv_migrate_hvcons_irq(int cpu) +{ + /* Migrate hvcons irq to param cpu */ + irq_force_affinity(sunhv_port->irq, cpumask_of(cpu)); +} + /* Copy 's' into the con_write_page, decoding "\n" into * "\r\n" along the way. We have to return two lengths * because the caller needs to know how much to advance |