diff options
| author | Raul E Rangel <rrangel@chromium.org> | 2022-01-11 12:48:50 -0700 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-01-17 15:39:16 +0000 |
| commit | bf993110b3386deb895b39c86993e8b5bf807ac0 (patch) | |
| tree | e06afd4e74db478b566b5581576c85e2a4540578 /src/lib | |
| parent | 2abb826312a1aa8f69a830156b91dda35c59d2b7 (diff) | |
console/cbmem: Add cbmem_dump_console
This function is similar to cbmem_dump_console_to_uart except it uses
the normally configured consoles. A console_paused flag was added to
prevent the cbmem console from writing to itself.
BUG=b:213828947
TEST=Boot guybrush
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I3fe0f666e2e15c88b4568377923ad447c3ecf27e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61011
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/cbmem_console.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/lib/cbmem_console.c b/src/lib/cbmem_console.c index 719c8b5088..02de8045c2 100644 --- a/src/lib/cbmem_console.c +++ b/src/lib/cbmem_console.c @@ -1,9 +1,11 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <console/cbmem_console.h> +#include <console/console.h> #include <console/uart.h> #include <cbmem.h> #include <symbols.h> +#include <types.h> /* * Structure describing console buffer. It is overlaid on a flat memory area, @@ -37,6 +39,8 @@ _Static_assert(CONFIG_CONSOLE_CBMEM_BUFFER_SIZE <= MAX_SIZE, static struct cbmem_console *current_console; +static bool console_paused; + /* * While running from ROM, before DRAM is initialized, some area in cache as * RAM space is used for the console buffer storage. The size and location of @@ -88,7 +92,7 @@ void cbmemc_init(void) void cbmemc_tx_byte(unsigned char data) { - if (!current_console || !current_console->size) + if (!current_console || !current_console->size || console_paused) return; u32 flags = current_console->cursor & ~CURSOR_MASK; @@ -169,3 +173,21 @@ void cbmem_dump_console_to_uart(void) uart_tx_byte(0, current_console->body[cursor]); } #endif + +void cbmem_dump_console(void) +{ + u32 cursor; + if (!current_console) + return; + + console_paused = true; + + if (current_console->cursor & OVERFLOW) + for (cursor = current_console->cursor & CURSOR_MASK; + cursor < current_console->size; cursor++) + do_putchar(current_console->body[cursor]); + for (cursor = 0; cursor < (current_console->cursor & CURSOR_MASK); cursor++) + do_putchar(current_console->body[cursor]); + + console_paused = false; +} |