aboutsummaryrefslogtreecommitdiffstats
path: root/arch/cris/mm
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-19 17:08:14 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-19 17:08:14 -0800
commit971d9e07e18fa3684e7fbc932f01aa2a0682f232 (patch)
treea927315124d4c96ba6673a20cddc74862a856a73 /arch/cris/mm
parentMerge tag 'please-pull-misc-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux (diff)
parentCRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARD (diff)
downloadlinux-dev-971d9e07e18fa3684e7fbc932f01aa2a0682f232.tar.xz
linux-dev-971d9e07e18fa3684e7fbc932f01aa2a0682f232.zip
Merge tag 'cris-changes-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris
Pull arch/chris updates from Jesper Nilsson: "Mostly cleanup and build fixes for CRISv32 allmodconfig God Jul och Gott Nytt år!" * tag 'cris-changes-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: CRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARD CRISv32: ETRAXFS: Fix recursive spinlock CRISv32: Select MTDRAM for axisflashmap CRISv32: Implement early console CRIS: Use KALLSYMs if available in call stack dump CRISv32: Fix declaration mismatch CRISv32: Rewrite of synchronous serial port driver CRIS: Update init memory handling CRISv32: Better handling of watchdog bite CRIS: Export missing function symbols CRIS: Export ioremap_nocache CRIS: Fix headers_install CRISv32: Add missing include for mm.h CRISv32: Drop obsolete file for SPI driver
Diffstat (limited to 'arch/cris/mm')
-rw-r--r--arch/cris/mm/init.c38
-rw-r--r--arch/cris/mm/ioremap.c3
2 files changed, 35 insertions, 6 deletions
diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c
index c81af5bd9167..1e7fd45b60f8 100644
--- a/arch/cris/mm/init.c
+++ b/arch/cris/mm/init.c
@@ -11,13 +11,15 @@
#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/bootmem.h>
+#include <linux/proc_fs.h>
+#include <linux/kcore.h>
#include <asm/tlb.h>
#include <asm/sections.h>
unsigned long empty_zero_page;
+EXPORT_SYMBOL(empty_zero_page);
-void __init
-mem_init(void)
+void __init mem_init(void)
{
BUG_ON(!mem_map);
@@ -31,10 +33,36 @@ mem_init(void)
mem_init_print_info(NULL);
}
-/* free the pages occupied by initialization code */
+/* Free a range of init pages. Virtual addresses. */
-void
-free_initmem(void)
+void free_init_pages(const char *what, unsigned long begin, unsigned long end)
+{
+ unsigned long addr;
+
+ for (addr = begin; addr < end; addr += PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(addr));
+ init_page_count(virt_to_page(addr));
+ free_page(addr);
+ totalram_pages++;
+ }
+
+ printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+}
+
+/* Free the pages occupied by initialization code. */
+
+void free_initmem(void)
{
free_initmem_default(-1);
}
+
+/* Free the pages occupied by initrd code. */
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+ free_init_pages("initrd memory",
+ start,
+ end);
+}
+#endif
diff --git a/arch/cris/mm/ioremap.c b/arch/cris/mm/ioremap.c
index f9ca44bdea20..80fdb995a8ce 100644
--- a/arch/cris/mm/ioremap.c
+++ b/arch/cris/mm/ioremap.c
@@ -76,10 +76,11 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
* Must be freed with iounmap.
*/
-void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
+void __iomem *ioremap_nocache(unsigned long phys_addr, unsigned long size)
{
return __ioremap(phys_addr | MEM_NON_CACHEABLE, size, 0);
}
+EXPORT_SYMBOL(ioremap_nocache);
void iounmap(volatile void __iomem *addr)
{