diff options
| author | Dapeng Mi <dapeng1.mi@linux.intel.com> | 2026-09-17 09:52:33 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-09-22 11:37:46 +0200 |
| commit | 0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch) | |
| tree | 531306c2299f9a269f0a986e29f17ba972180104 /arch/mips/cobalt/serial.c | |
| download | linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.zip | |
perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy
Offcore Response events, but it still exposes the inherited
offcore_rsp PMU attribute for programming the corresponding MSR data.
Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface
matches the underlying event name and avoids user & tooling confusion.
Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
Diffstat (limited to 'arch/mips/cobalt/serial.c')
| -rw-r--r-- | arch/mips/cobalt/serial.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/mips/cobalt/serial.c b/arch/mips/cobalt/serial.c new file mode 100644 index 000000000..5fb676719 --- /dev/null +++ b/arch/mips/cobalt/serial.c @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Registration of Cobalt UART platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> + +#include <cobalt.h> +#include <irq.h> + +static struct resource cobalt_uart_resource[] __initdata = { + { + .start = 0x1c800000, + .end = 0x1c800007, + .flags = IORESOURCE_MEM, + }, + { + .start = SERIAL_IRQ, + .end = SERIAL_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct plat_serial8250_port cobalt_serial8250_port[] = { + { + .irq = SERIAL_IRQ, + .uartclk = 18432000, + .iotype = UPIO_MEM, + .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + .mapbase = 0x1c800000, + }, + {}, +}; + +static __init int cobalt_uart_add(void) +{ + struct platform_device *pdev; + int retval; + + /* + * Cobalt Qube1 has no UART. + */ + if (cobalt_board_id == COBALT_BRD_ID_QUBE1) + return 0; + + pdev = platform_device_alloc("serial8250", -1); + if (!pdev) + return -ENOMEM; + + pdev->id = PLAT8250_DEV_PLATFORM; + pdev->dev.platform_data = cobalt_serial8250_port; + + retval = platform_device_add_resources(pdev, cobalt_uart_resource, ARRAY_SIZE(cobalt_uart_resource)); + if (retval) + goto err_free_device; + + retval = platform_device_add(pdev); + if (retval) + goto err_free_device; + + return 0; + +err_free_device: + platform_device_put(pdev); + + return retval; +} +device_initcall(cobalt_uart_add); |
