From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [PATCH 4/4] arm: use correct argument size of special registers
Date: Tue, 7 Jul 2020 23:03:56 -0400 [thread overview]
Message-ID: <20200708030356.GX1306@bill-the-cat> (raw)
In-Reply-To: <20200527180424.39395-5-xypron.glpk@gmx.de>
On Wed, May 27, 2020 at 08:04:24PM +0200, Heinrich Schuchardt wrote:
> Compiling with clang on ARMv8 shows errors like:
>
> ./arch/arm/include/asm/system.h:162:32: note: use constraint modifier "w"
> asm volatile("msr sctlr_el1, %0" : : "r" (val) : "cc");
> ^~
> %w0
>
> These errors are due to using an incorrect size for the variables used
> for writing to and reading from special registers which have 64 bits on
> ARMv8.
>
> Mask off reserved bits when reading the exception level.
>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Applied to u-boot/master, thanks!
--
Tom
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next prev parent reply other threads:[~2020-07-08 3:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-27 18:04 [PATCH 0/4] arm: fix clang build errors Heinrich Schuchardt
2020-05-27 18:04 ` [PATCH 1/4] efi_loader: allow compiling with clang Heinrich Schuchardt
2020-05-31 14:08 ` Simon Glass
2020-05-27 18:04 ` [PATCH 2/4] trace: clang compatible handling of gd register Heinrich Schuchardt
2020-05-31 14:08 ` Simon Glass
2020-07-08 3:03 ` Tom Rini
2020-05-27 18:04 ` [PATCH 3/4] arm: remove outdated comment concerning -ffixed-x18 Heinrich Schuchardt
2020-05-31 14:08 ` Simon Glass
2020-07-08 3:03 ` Tom Rini
2020-05-27 18:04 ` [PATCH 4/4] arm: use correct argument size of special registers Heinrich Schuchardt
2020-07-08 3:03 ` Tom Rini [this message]
2020-06-14 15:51 ` [PATCH 0/4] arm: fix clang build errors Heinrich Schuchardt
2020-06-14 15:59 ` Tom Rini
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