[MIPS] Remove LIMITED_DMA support

This code was needed only by Jaguar ATX.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 0 insertions, 10 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 515c5a698040..fa2c44388fdb 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -883,11 +883,6 @@ config GENERIC_ISA_DMA
 config I8259
         bool
 
-config LIMITED_DMA
-        bool
-        select HIGHMEM
-        select SYS_SUPPORTS_HIGHMEM
-
 config MIPS_BONITO64
         bool
 
diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index 675502ada5a2..10dd2af2343b 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -80,7 +80,6 @@ void __kunmap_atomic(void *kvaddr, enum km_type type)
         pagefault_enable();
 }
 
-#ifndef CONFIG_LIMITED_DMA
 /*
  * This is the same as kmap_atomic() but can map memory that doesn't
  * have a struct page associated with it.
@@ -99,7 +98,6 @@ void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
 
         return (void*) vaddr;
 }
-#endif /* CONFIG_LIMITED_DMA */
 
 struct page *__kmap_atomic_to_page(void *ptr)
 {
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 2d1c2c024822..4c80528deadd 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -424,9 +424,6 @@ void __init mem_init(void)
                         continue;
                 }
                 ClearPageReserved(page);
-#ifdef CONFIG_LIMITED_DMA
-                set_page_address(page, lowmem_page_address(page));
-#endif
                 init_page_count(page);
                 __free_page(page);
                 totalhigh_pages++;