From 47870afab92fca6e672c03d0dea802a55e200675 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 31 Jan 2019 16:06:23 +0100 Subject: initcall: Move to inline function The board_r init function was complaining that we are looping through an array, calling all our tiny init stubs sequentially via indirect function calls (which can't be speculated, so they are slow). The solution to that is pretty easy though. All we need to do is inline the function that loops through the functions and the compiler will automatically convert almost all indirect calls into direct inlined code. With this patch, the overall code size drops (by 40 bytes on riscv64) and boot time should become measurably faster for every target. Signed-off-by: Alexander Graf --- include/initcall.h | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) (limited to 'include/initcall.h') diff --git a/include/initcall.h b/include/initcall.h index 01f3f2833f1..3ac01aa2cd2 100644 --- a/include/initcall.h +++ b/include/initcall.h @@ -8,6 +8,39 @@ typedef int (*init_fnc_t)(void); -int initcall_run_list(const init_fnc_t init_sequence[]); +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +static inline int initcall_run_list(const init_fnc_t init_sequence[]) +{ + const init_fnc_t *init_fnc_ptr; + + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { + unsigned long reloc_ofs = 0; + int ret; + + if (gd->flags & GD_FLG_RELOC) + reloc_ofs = gd->reloc_off; +#ifdef CONFIG_EFI_APP + reloc_ofs = (unsigned long)image_base; +#endif + debug("initcall: %p", (char *)*init_fnc_ptr - reloc_ofs); + if (gd->flags & GD_FLG_RELOC) + debug(" (relocated to %p)\n", (char *)*init_fnc_ptr); + else + debug("\n"); + ret = (*init_fnc_ptr)(); + if (ret) { + printf("initcall sequence %p failed at call %p (err=%d)\n", + init_sequence, + (char *)*init_fnc_ptr - reloc_ofs, ret); + return -1; + } + } + return 0; +} #endif -- cgit v1.2.3