From 6b9966e1aa362e97e9b33b7b82ff713f2ddea2c1 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Thu, 10 Sep 2020 07:47:39 +0200 Subject: [PATCH] riscv: define function set_gd() Function set_gd() is needed in the UEFI sub-system if the global data pointer is stored in a register. Signed-off-by: Heinrich Schuchardt --- arch/riscv/include/asm/global_data.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/riscv/include/asm/global_data.h b/arch/riscv/include/asm/global_data.h index 2eb14815bc..b711fcc44d 100644 --- a/arch/riscv/include/asm/global_data.h +++ b/arch/riscv/include/asm/global_data.h @@ -39,4 +39,13 @@ struct arch_global_data { #define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm ("gp") +static inline void set_gd(volatile gd_t *gd_ptr) +{ +#ifdef CONFIG_64BIT + asm volatile("ld gp, %0\n" : : "m"(gd_ptr)); +#else + asm volatile("lw gp, %0\n" : : "m"(gd_ptr)); +#endif +} + #endif /* __ASM_GBL_DATA_H */ -- 2.39.5