From 582f95835a8fc812cd38dce0447fe9386b78913e Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Fri, 25 Oct 2019 17:42:14 +0100 Subject: arm64: entry: convert el0_sync to C This is largely a 1-1 conversion of asm to C, with a couple of caveats. The el0_sync{_compat} switches explicitly handle all the EL0 debug cases, so el0_dbg doesn't have to try to bail out for unexpected EL1 debug ESR values. This also means that an unexpected vector catch from AArch32 is routed to el0_inv. We *could* merge the native and compat switches, which would make the diffstat negative, but I've tried to stay as close to the existing assembly as possible for the moment. Signed-off-by: Mark Rutland [split out of a bigger series, added nokprobes. removed irq trace calls as the C helpers do this. renamed el0_dbg's use of FAR] Signed-off-by: James Morse Reviewed-by: Mark Rutland Cc: Julien Thierry Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/asm-uaccess.h | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'arch/arm64/include/asm') diff --git a/arch/arm64/include/asm/asm-uaccess.h b/arch/arm64/include/asm/asm-uaccess.h index f74909ba29bd..a70575edae8e 100644 --- a/arch/arm64/include/asm/asm-uaccess.h +++ b/arch/arm64/include/asm/asm-uaccess.h @@ -74,14 +74,4 @@ alternative_if ARM64_ALT_PAN_NOT_UAO SET_PSTATE_PAN(0) alternative_else_nop_endif .endm - -/* - * Remove the address tag from a virtual address, if present. - */ - .macro clear_address_tag, dst, addr - tst \addr, #(1 << 55) - bic \dst, \addr, #(0xff << 56) - csel \dst, \dst, \addr, eq - .endm - #endif -- cgit v1.2.3