Messages in this thread | | | From | Anup Patel <> | Date | Tue, 23 Nov 2021 09:15:57 +0530 | Subject | Re: [RFC PATCH 3/3] riscv: Add riscv.fwsz kernel parameter |
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On Tue, Nov 23, 2021 at 7:27 AM <guoren@kernel.org> wrote: > > From: Guo Ren <guoren@linux.alibaba.com> > > The firmware of riscv (such as opensbi) occupy 2MB(64bit) / > 4MB(32bit) in Linux. It's very wasteful to small memory footprint > soc chip such as Allwinner D1s/F133. The kernel parameter gives a > chance to users to set the proper size of the firmware and get > more than 1.5MB of memory.
This kernel parameter is redundant see my comment on other patch.
regards, Anup
> > Signed-off-by: Guo Ren <guoren@linux.alibaba.com> > Cc: Palmer Dabbelt <palmer@dabbelt.com> > Cc: Anup Patel <anup.patel@wdc.com> > Cc: Atish Patra <atishp@rivosinc.com> > --- > Documentation/admin-guide/kernel-parameters.txt | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 9725c546a0d4..ee505743c8f4 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -4964,6 +4964,9 @@ > [KNL] Disable ring 3 MONITOR/MWAIT feature on supported > CPUs. > > + riscv.fwsz=nn[KMG] > + [RISC-V] Determine firmware size to save memory > + > ro [KNL] Mount root device read-only on boot > > rodata= [KNL] > -- > 2.25.1 >
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