| Message ID | 20201022014731.2035438-7-andrew@aj.id.au |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | ARM: dts: Enable ramoops for Rainier and Tacoma | expand |
On Thu, 22 Oct 2020 at 01:48, Andrew Jeffery <andrew@aj.id.au> wrote: > > Reserve a 1.5MiB region of memory to record kmsg dumps, console and > userspace message state into 16kiB ring-buffer slots. The sizing allows > for up to 16 dumps to be captured and read out. > > Set max-reason to KMSG_DUMP_EMERG to capture bad-path reboots. > > Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Reviewed-by: Joel Stanley <joel@jms.id.au> > --- > arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts > index 09b561429579..04efabe70d9f 100644 > --- a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts > +++ b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts > @@ -34,6 +34,15 @@ flash_memory: region@b8000000 { > > /* 48MB region from the end of flash to start of vga memory */ > > + ramoops@bc000000 { > + compatible = "ramoops"; > + reg = <0xbc000000 0x180000>; /* 16 * (3 * 0x8000) */ > + record-size = <0x8000>; > + console-size = <0x8000>; > + pmsg-size = <0x8000>; > + max-reason = <3>; /* KMSG_DUMP_EMERG */ > + }; > + > /* VGA region is dictated by hardware strapping */ > vga_memory: region@bf000000 { > no-map; > -- > 2.25.1 >
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts index 09b561429579..04efabe70d9f 100644 --- a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts +++ b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts @@ -34,6 +34,15 @@ flash_memory: region@b8000000 { /* 48MB region from the end of flash to start of vga memory */ + ramoops@bc000000 { + compatible = "ramoops"; + reg = <0xbc000000 0x180000>; /* 16 * (3 * 0x8000) */ + record-size = <0x8000>; + console-size = <0x8000>; + pmsg-size = <0x8000>; + max-reason = <3>; /* KMSG_DUMP_EMERG */ + }; + /* VGA region is dictated by hardware strapping */ vga_memory: region@bf000000 { no-map;
Reserve a 1.5MiB region of memory to record kmsg dumps, console and userspace message state into 16kiB ring-buffer slots. The sizing allows for up to 16 dumps to be captured and read out. Set max-reason to KMSG_DUMP_EMERG to capture bad-path reboots. Signed-off-by: Andrew Jeffery <andrew@aj.id.au> --- arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts | 9 +++++++++ 1 file changed, 9 insertions(+)