From ca0e89b61e06b316c4182091799c5aa333015ebe Mon Sep 17 00:00:00 2001 From: Andrew Bresticker Date: Fri, 6 Feb 2015 11:17:35 -0800 Subject: libpayload: mips: Add macros to convert to/from KSEG{0,1} addresses Add helper macros to convert between physical addresses and KSEG{0,1} addresses. Also get rid of the virt_to_{bus,phys}_offset variables as these are fixed values. As nobody seems to be using getpagesize() on MIPS, no need to keep virtual.c. BUG=chrome-os-partner:36258 BRANCH=none TEST=Build and boot on Pistachio. Change-Id: Ia26c8eae53eb8f860747a6b321363776841d1a94 Signed-off-by: Patrick Georgi Original-Commit-Id: c422b02e9a2a20d130913b1cfb835ad74c39ddca Original-Change-Id: I9476cd225a08534830c700cba7bf9d3ef871757e Original-Signed-off-by: Andrew Bresticker Original-Signed-off-by: Vadim Bendebury Original-Reviewed-on: https://chromium-review.googlesource.com/247190 Reviewed-on: http://review.coreboot.org/9821 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- payloads/libpayload/include/mips/arch/virtual.h | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'payloads/libpayload/include/mips') diff --git a/payloads/libpayload/include/mips/arch/virtual.h b/payloads/libpayload/include/mips/arch/virtual.h index f470393b35..8c645e6b10 100644 --- a/payloads/libpayload/include/mips/arch/virtual.h +++ b/payloads/libpayload/include/mips/arch/virtual.h @@ -20,15 +20,19 @@ #ifndef __MIPS_ARCH_VIRTUAL_H #define __MIPS_ARCH_VIRTUAL_H -extern unsigned long virt_to_phys_offset; -extern unsigned long virt_to_bus_offset; +#define KSEG0_BASE 0x80000000 +#define KSEG1_BASE 0xA0000000 -#define virt_to_phys(virt) ((unsigned long) (virt) + virt_to_phys_offset) -#define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - \ - virt_to_phys_offset)) +#define kseg0_to_phys(virt) ((unsigned long)(virt) - KSEG0_BASE) +#define phys_to_kseg0(phys) ((void *)((unsigned long)(phys) + KSEG0_BASE)) -#define virt_to_bus(virt) ((unsigned long) (virt) + virt_to_bus_offset) -#define bus_to_virt(phys) ((void *) ((unsigned long) (phys) - \ - virt_to_bus_offset)) +#define kseg1_to_phys(virt) ((unsigned long)(virt) - KSEG1_BASE) +#define phys_to_kseg1(phys) ((void *)((unsigned long)(phys) + KSEG1_BASE)) + +#define virt_to_phys(virt) ((unsigned long)(virt)) +#define phys_to_virt(phys) ((void *)(unsigned long)(phys)) + +#define virt_to_bus(virt) kseg1_to_phys(virt) +#define bus_to_virt(phys) phys_to_kseg1(phys) #endif -- cgit v1.2.3