[PATCH 1/1] RISC-V: load initrd wherever it fits into memory

From: Heinrich Schuchardt <xypron.glpk@gmx.de>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: Andreas Schwab <schwab@linux-m68k.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Atish Patra <atish.patra@wdc.com>,
	linux-efi@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Heinrich Schuchardt <xypron.glpk@gmx.de>
Subject: [PATCH 1/1] RISC-V: load initrd wherever it fits into memory
Date: Tue, 29 Jun 2021 15:40:18 +0200	[thread overview]
Message-ID: <20210629134018.62859-1-xypron.glpk@gmx.de> (raw)

Requiring that initrd is loaded below RAM start + 256 MiB led to failure
to boot SUSE Linux with GRUB on QEMU, cf.
https://lists.gnu.org/archive/html/grub-devel/2021-06/msg00037.html

Remove the constraint.

Reported-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
 arch/riscv/include/asm/efi.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/include/asm/efi.h b/arch/riscv/include/asm/efi.h
index 7542282f1141..649ab513dc99 100644
--- a/arch/riscv/include/asm/efi.h
+++ b/arch/riscv/include/asm/efi.h
@@ -33,10 +33,10 @@ static inline unsigned long efi_get_max_fdt_addr(unsigned long image_addr)

 #define ARCH_EFI_IRQ_FLAGS_MASK (SR_IE | SR_SPIE)

-/* Load initrd at enough distance from DRAM start */
+/* Load initrd anywhere in system RAM */
 static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr)
 {
-	return image_addr + SZ_256M;
+	return ULONG_MAX;
 }

 #define alloc_screen_info(x...)		(&screen_info)
--
2.30.2

