diff options
| author | Alison Wang <b18965@freescale.com> | 2017-01-17 09:39:17 +0800 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2017-01-18 09:29:33 -0800 |
| commit | 7c5e1feb1d780cc857632c246e78ac7a8e6cf2d7 (patch) | |
| tree | 74e3a73c1be3c56594f7e19267838c5a4c4fe81f /arch/arm/include/asm | |
| parent | 2ca84bf7b2d7930b424b19f5027d3c06ec7cb696 (diff) | |
armv8: aarch64: Fix the warning about x1-x3 nonzero issue
For 64-bit kernel, there is a warning about x1-x3 nonzero in violation
of boot protocol. To fix this issue, input argument 4 is added for
armv8_switch_to_el2 and armv8_switch_to_el1. The input argument 4 will
be set to the right value, such as zero.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/system.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index dc4c9914d7..766e929d46 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -196,11 +196,12 @@ void __asm_switch_ttbr(u64 new_ttbr); * For loading 32-bit OS, machine nr * @fdt_addr: For loading 64-bit OS, zero. * For loading 32-bit OS, fdt address. + * @arg4: Input argument. * @entry_point: kernel entry point * @es_flag: execution state flag, ES_TO_AARCH64 or ES_TO_AARCH32 */ void armv8_switch_to_el2(u64 args, u64 mach_nr, u64 fdt_addr, - u64 entry_point, u64 es_flag); + u64 arg4, u64 entry_point, u64 es_flag); /* * Switch from EL2 to EL1 for ARMv8 * @@ -210,13 +211,14 @@ void armv8_switch_to_el2(u64 args, u64 mach_nr, u64 fdt_addr, * For loading 32-bit OS, machine nr * @fdt_addr: For loading 64-bit OS, zero. * For loading 32-bit OS, fdt address. + * @arg4: Input argument. * @entry_point: kernel entry point * @es_flag: execution state flag, ES_TO_AARCH64 or ES_TO_AARCH32 */ void armv8_switch_to_el1(u64 args, u64 mach_nr, u64 fdt_addr, - u64 entry_point, u64 es_flag); + u64 arg4, u64 entry_point, u64 es_flag); void armv8_el2_to_aarch32(u64 args, u64 mach_nr, u64 fdt_addr, - u64 entry_point); + u64 arg4, u64 entry_point); void gic_init(void); void gic_send_sgi(unsigned long sgino); void wait_for_wakeup(void); |