* [PATCH] rockchip: rk35xx: expand space for decompressed kernel
@ 2023-12-23 12:13 Hugh Cole-Baker
2023-12-23 16:09 ` Tom Rini
0 siblings, 1 reply; 3+ messages in thread
From: Hugh Cole-Baker @ 2023-12-23 12:13 UTC (permalink / raw)
To: u-boot
Cc: Hugh Cole-Baker, Simon Glass, Philipp Tomsich, Kever Yang, Jonas Karlman
An uncompressed 6.7.0-rc1 Linux kernel Image built with the arm64
defconfig is about 40MB. This does not fit in to the space between
kernel_comp_addr_r and fdt_addr_r, so when uncompressing an Image.gz
to this size, the FDT will be overwritten. Move fdt_addr_r and
ramdisk_addr_r higher in memory to allow 96MB for uncompressing kernels.
Signed-off-by: Hugh Cole-Baker <sigmaris@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
---
include/configs/rk3568_common.h | 4 ++--
include/configs/rk3588_common.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/configs/rk3568_common.h b/include/configs/rk3568_common.h
index 1b7d3437b1..da5b38803e 100644
--- a/include/configs/rk3568_common.h
+++ b/include/configs/rk3568_common.h
@@ -20,10 +20,10 @@
"script_offset_f=0xffe000\0" \
"script_size_f=0x2000\0" \
"pxefile_addr_r=0x00e00000\0" \
- "fdt_addr_r=0x0a100000\0" \
+ "fdt_addr_r=0x0e000000\0" \
"fdtoverlay_addr_r=0x02000000\0" \
"kernel_addr_r=0x02080000\0" \
- "ramdisk_addr_r=0x0a200000\0" \
+ "ramdisk_addr_r=0x0e100000\0" \
"kernel_comp_addr_r=0x08000000\0" \
"kernel_comp_size=0x2000000\0"
diff --git a/include/configs/rk3588_common.h b/include/configs/rk3588_common.h
index 46389d087d..5fdbdb6fd7 100644
--- a/include/configs/rk3588_common.h
+++ b/include/configs/rk3588_common.h
@@ -19,10 +19,10 @@
"script_offset_f=0xffe000\0" \
"script_size_f=0x2000\0" \
"pxefile_addr_r=0x00e00000\0" \
- "fdt_addr_r=0x0a100000\0" \
+ "fdt_addr_r=0x0e000000\0" \
"fdtoverlay_addr_r=0x02000000\0" \
"kernel_addr_r=0x02080000\0" \
- "ramdisk_addr_r=0x0a200000\0" \
+ "ramdisk_addr_r=0x0e100000\0" \
"kernel_comp_addr_r=0x08000000\0" \
"kernel_comp_size=0x2000000\0"
--
2.39.3 (Apple Git-145)
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] rockchip: rk35xx: expand space for decompressed kernel
2023-12-23 12:13 [PATCH] rockchip: rk35xx: expand space for decompressed kernel Hugh Cole-Baker
@ 2023-12-23 16:09 ` Tom Rini
2023-12-23 18:23 ` John Clark
0 siblings, 1 reply; 3+ messages in thread
From: Tom Rini @ 2023-12-23 16:09 UTC (permalink / raw)
To: Hugh Cole-Baker
Cc: u-boot, Simon Glass, Philipp Tomsich, Kever Yang, Jonas Karlman
[-- Attachment #1: Type: text/plain, Size: 1746 bytes --]
On Sat, Dec 23, 2023 at 12:13:10PM +0000, Hugh Cole-Baker wrote:
> An uncompressed 6.7.0-rc1 Linux kernel Image built with the arm64
> defconfig is about 40MB. This does not fit in to the space between
> kernel_comp_addr_r and fdt_addr_r, so when uncompressing an Image.gz
> to this size, the FDT will be overwritten. Move fdt_addr_r and
> ramdisk_addr_r higher in memory to allow 96MB for uncompressing kernels.
>
> Signed-off-by: Hugh Cole-Baker <sigmaris@gmail.com>
> Cc: Simon Glass <sjg@chromium.org>
> Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
> Cc: Kever Yang <kever.yang@rock-chips.com>
> Cc: Jonas Karlman <jonas@kwiboo.se>
> ---
> include/configs/rk3568_common.h | 4 ++--
> include/configs/rk3588_common.h | 4 ++--
> 2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/configs/rk3568_common.h b/include/configs/rk3568_common.h
> index 1b7d3437b1..da5b38803e 100644
> --- a/include/configs/rk3568_common.h
> +++ b/include/configs/rk3568_common.h
> @@ -20,10 +20,10 @@
> "script_offset_f=0xffe000\0" \
> "script_size_f=0x2000\0" \
> "pxefile_addr_r=0x00e00000\0" \
> - "fdt_addr_r=0x0a100000\0" \
> + "fdt_addr_r=0x0e000000\0" \
> "fdtoverlay_addr_r=0x02000000\0" \
> "kernel_addr_r=0x02080000\0" \
> - "ramdisk_addr_r=0x0a200000\0" \
> + "ramdisk_addr_r=0x0e100000\0" \
> "kernel_comp_addr_r=0x08000000\0" \
> "kernel_comp_size=0x2000000\0"
I think this shows the real problem is that the defaults here need to be
re-thought with functional maximums in mind. There's a practical limit
of 128MB for the kernel so we should have the kernel, then the kernel
decompression buffer, then device tree and overlays space, then ramdisk
at the end.
--
Tom
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] rockchip: rk35xx: expand space for decompressed kernel
2023-12-23 16:09 ` Tom Rini
@ 2023-12-23 18:23 ` John Clark
0 siblings, 0 replies; 3+ messages in thread
From: John Clark @ 2023-12-23 18:23 UTC (permalink / raw)
To: u-boot
On 12/23/23 11:09 AM, Tom Rini wrote:
> On Sat, Dec 23, 2023 at 12:13:10PM +0000, Hugh Cole-Baker wrote:
>> An uncompressed 6.7.0-rc1 Linux kernel Image built with the arm64
>> defconfig is about 40MB. This does not fit in to the space between
>> kernel_comp_addr_r and fdt_addr_r, so when uncompressing an Image.gz
>> to this size, the FDT will be overwritten. Move fdt_addr_r and
>> ramdisk_addr_r higher in memory to allow 96MB for uncompressing kernels.
>>
>> Signed-off-by: Hugh Cole-Baker <sigmaris@gmail.com>
>> Cc: Simon Glass <sjg@chromium.org>
>> Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
>> Cc: Kever Yang <kever.yang@rock-chips.com>
>> Cc: Jonas Karlman <jonas@kwiboo.se>
>> ---
>> include/configs/rk3568_common.h | 4 ++--
>> include/configs/rk3588_common.h | 4 ++--
>> 2 files changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/include/configs/rk3568_common.h b/include/configs/rk3568_common.h
>> index 1b7d3437b1..da5b38803e 100644
>> --- a/include/configs/rk3568_common.h
>> +++ b/include/configs/rk3568_common.h
>> @@ -20,10 +20,10 @@
>> "script_offset_f=0xffe000\0" \
>> "script_size_f=0x2000\0" \
>> "pxefile_addr_r=0x00e00000\0" \
>> - "fdt_addr_r=0x0a100000\0" \
>> + "fdt_addr_r=0x0e000000\0" \
>> "fdtoverlay_addr_r=0x02000000\0" \
>> "kernel_addr_r=0x02080000\0" \
>> - "ramdisk_addr_r=0x0a200000\0" \
>> + "ramdisk_addr_r=0x0e100000\0" \
>> "kernel_comp_addr_r=0x08000000\0" \
>> "kernel_comp_size=0x2000000\0"
> I think this shows the real problem is that the defaults here need to be
> re-thought with functional maximums in mind. There's a practical limit
> of 128MB for the kernel so we should have the kernel, then the kernel
> decompression buffer, then device tree and overlays space, then ramdisk
> at the end.
>
kernel_comp_size needs to be adjusted with this change
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-12-23 18:24 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2023-12-23 12:13 [PATCH] rockchip: rk35xx: expand space for decompressed kernel Hugh Cole-Baker
2023-12-23 16:09 ` Tom Rini
2023-12-23 18:23 ` John Clark
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