[PULL 03/66] target/mips/addr: Add translation helpers for KSEG1

From: Jiaxun Yang <jiaxun.yang(a)flygoat.com&gt; It's useful for bootloader to do I/O operations. Signed-off-by: Jiaxun Yang <jiaxun.yang(a)flygoat.com&gt; Tested-by: Philippe Mathieu-Daudé <f4bug(a)amsat.org&gt; Reviewed-by: Philippe Mathieu-Daudé <f4bug(a)amsat.org&gt; Reviewed-by: Huacai Chen <chenhuacai(a)kernel.org&gt; Message-Id: <20201215064507.30148-3-jiaxun.yang(a)flygoat.com&gt; Signed-off-by: Philippe Mathieu-Daudé <f4bug(a)amsat.org&gt; --- target/mips/cpu.h | 2 ++ target/mips/addr.c | 10 ++++++++++ 2 files changed, 12 insertions(+) diff --git a/target/mips/cpu.h b/target/mips/cpu.h index 0086f95ea2a..0c2d397e4a9 100644 --- a/target/mips/cpu.h +++ b/target/mips/cpu.h @@ -1312,6 +1312,8 @@ uint64_t cpu_mips_kseg0_to_phys(void *opaque, uint64_t addr); uint64_t cpu_mips_phys_to_kseg0(void *opaque, uint64_t addr); uint64_t cpu_mips_kvm_um_phys_to_kseg0(void *opaque, uint64_t addr); +uint64_t cpu_mips_kseg1_to_phys(void *opaque, uint64_t addr); +uint64_t cpu_mips_phys_to_kseg1(void *opaque, uint64_t addr); bool mips_um_ksegs_enabled(void); void mips_um_ksegs_enable(void); diff --git a/target/mips/addr.c b/target/mips/addr.c index 27a6036c451..86f1c129c9f 100644 --- a/target/mips/addr.c +++ b/target/mips/addr.c @@ -40,6 +40,16 @@ uint64_t cpu_mips_kvm_um_phys_to_kseg0(void *opaque, uint64_t addr) return addr | 0x40000000ll; } +uint64_t cpu_mips_kseg1_to_phys(void *opaque, uint64_t addr) +{ + return addr & 0x1fffffffll; +} + +uint64_t cpu_mips_phys_to_kseg1(void *opaque, uint64_t addr) +{ + return (addr & 0x1fffffffll) | 0xffffffffa0000000ll; +} + bool mips_um_ksegs_enabled(void) { return mips_um_ksegs; -- 2.26.2