From f995adb0ac5bcfa0d396ba7706aab420c7a6fec2 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Tue, 30 Apr 2019 22:53:30 +0000 Subject: [PATCH] MIPS: Use memblock_phys_alloc() for exception vector MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allocate the exception vector using memblock_phys_alloc() which gives us a physical address, rather than the previous convoluted setup which obtained a virtual address using memblock_alloc(), converted it to a physical address & then back to a virtual address. Signed-off-by: Paul Burton Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Serge Semin Tested-by: Serge Semin Cc: linux-mips@vger.kernel.org --- arch/mips/kernel/traps.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 98ca55d62201..00f44b16385e 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2292,9 +2292,8 @@ void __init trap_init(void) unsigned long size = 0x200 + VECTORSPACING*64; phys_addr_t ebase_pa; - ebase = (unsigned long) - memblock_alloc(size, 1 << fls(size)); - if (!ebase) + ebase_pa = memblock_phys_alloc(size, 1 << fls(size)); + if (!ebase_pa) panic("%s: Failed to allocate %lu bytes align=0x%x\n", __func__, size, 1 << fls(size)); @@ -2309,9 +2308,10 @@ void __init trap_init(void) * EVA is special though as it allows segments to be rearranged * and to become uncached during cache error handling. */ - ebase_pa = __pa(ebase); if (!IS_ENABLED(CONFIG_EVA) && !WARN_ON(ebase_pa >= 0x20000000)) ebase = CKSEG0ADDR(ebase_pa); + else + ebase = (unsigned long)phys_to_virt(ebase_pa); } else { ebase = CAC_BASE;