[PATCH 1/3] ACPI: table upgrade: use cacheable map for tables
From: Zheng, Lv <hidden>
Date: 2016-05-18 03:06:41
Also in:
linux-acpi, lkml
Hi,
From: Aleksey Makarov [mailto:aleksey.makarov at linaro.org] Subject: [PATCH 1/3] ACPI: table upgrade: use cacheable map for tables The new memory allocated in acpi_table_initrd_init() is used to copy the upgraded tables to it. So it should be mapped with early_memunmap() instead of early_ioremap(). This is critical for ARM. Signed-off-by: Aleksey Makarov <redacted>
[Lv Zheng] Acked-by: Lv Zheng <redacted> Thanks -Lv
quoted hunk ↗ jump to hunk
--- drivers/acpi/tables.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index a372f9e..449a649 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c@@ -578,10 +578,10 @@ static void __init acpi_table_initrd_init(void *data,size_t size) clen = size; if (clen > MAP_CHUNK_SIZE - slop) clen = MAP_CHUNK_SIZE - slop; - dest_p = early_ioremap(dest_addr & PAGE_MASK, + dest_p = early_memremap(dest_addr & PAGE_MASK, clen + slop); memcpy(dest_p + slop, src_p, clen); - early_iounmap(dest_p, clen + slop); + early_memunmap(dest_p, clen + slop); src_p += clen; dest_addr += clen; size -= clen; -- 2.8.2