aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/x86/mm/Makefile_321
-rw-r--r--arch/x86/mm/Makefile_641
-rw-r--r--arch/x86/mm/pageattr.c51
-rw-r--r--include/asm-x86/cacheflush.h1
4 files changed, 14 insertions, 40 deletions
diff --git a/arch/x86/mm/Makefile_32 b/arch/x86/mm/Makefile_32
index af0d39bea6c..ffa6d46a1e7 100644
--- a/arch/x86/mm/Makefile_32
+++ b/arch/x86/mm/Makefile_32
@@ -4,7 +4,6 @@
obj-y := init_32.o pgtable_32.o fault_32.o ioremap.o extable.o pageattr.o mmap.o
-obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
obj-$(CONFIG_NUMA) += discontig_32.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_HIGHMEM) += highmem_32.o
diff --git a/arch/x86/mm/Makefile_64 b/arch/x86/mm/Makefile_64
index b564b5a760d..27a090c86e9 100644
--- a/arch/x86/mm/Makefile_64
+++ b/arch/x86/mm/Makefile_64
@@ -7,4 +7,3 @@ obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_NUMA) += numa_64.o
obj-$(CONFIG_K8_NUMA) += k8topology_64.o
obj-$(CONFIG_ACPI_NUMA) += srat_64.o
-obj-$(CONFIG_CPA_DEBUG) += pageattr-test.o
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index e5910ac37e5..e4d2b6930e6 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -210,7 +210,8 @@ repeat:
* Modules and drivers should use the set_memory_* APIs instead.
*/
-int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
+static int change_page_attr_addr(unsigned long address, int numpages,
+ pgprot_t prot)
{
int err = 0, kernel_map = 0, i;
@@ -252,36 +253,6 @@ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot)
}
/**
- * change_page_attr - Change page table attributes in the linear mapping.
- * @page: First page to change
- * @numpages: Number of pages to change
- * @prot: New protection/caching type (PAGE_*)
- *
- * Returns 0 on success, otherwise a negated errno.
- *
- * This should be used when a page is mapped with a different caching policy
- * than write-back somewhere - some CPUs do not like it when mappings with
- * different caching policies exist. This changes the page attributes of the
- * in kernel linear mapping too.
- *
- * Caller must call global_flush_tlb() later to make the changes active.
- *
- * The caller needs to ensure that there are no conflicting mappings elsewhere
- * (e.g. in user space) * This function only deals with the kernel linear map.
- *
- * For MMIO areas without mem_map use change_page_attr_addr() instead.
- *
- * Modules and drivers should use the set_pages_* APIs instead.
- */
-int change_page_attr(struct page *page, int numpages, pgprot_t prot)
-{
- unsigned long addr = (unsigned long)page_address(page);
-
- return change_page_attr_addr(addr, numpages, prot);
-}
-EXPORT_UNUSED_SYMBOL(change_page_attr); /* to be removed in 2.6.27 */
-
-/**
* change_page_attr_set - Change page table attributes in the linear mapping.
* @addr: Virtual address in linear mapping.
* @numpages: Number of pages to change
@@ -294,15 +265,14 @@ EXPORT_UNUSED_SYMBOL(change_page_attr); /* to be removed in 2.6.27 */
* different caching policies exist. This changes the page attributes of the
* in kernel linear mapping too.
*
- * Caller must call global_flush_tlb() later to make the changes active.
- *
* The caller needs to ensure that there are no conflicting mappings elsewhere
* (e.g. in user space) * This function only deals with the kernel linear map.
*
* This function is different from change_page_attr() in that only selected bits
* are impacted, all other bits remain as is.
*/
-int change_page_attr_set(unsigned long addr, int numpages, pgprot_t prot)
+static int change_page_attr_set(unsigned long addr, int numpages,
+ pgprot_t prot)
{
pgprot_t current_prot;
int level;
@@ -332,15 +302,14 @@ int change_page_attr_set(unsigned long addr, int numpages, pgprot_t prot)
* different caching policies exist. This changes the page attributes of the
* in kernel linear mapping too.
*
- * Caller must call global_flush_tlb() later to make the changes active.
- *
* The caller needs to ensure that there are no conflicting mappings elsewhere
* (e.g. in user space) * This function only deals with the kernel linear map.
*
* This function is different from change_page_attr() in that only selected bits
* are impacted, all other bits remain as is.
*/
-int change_page_attr_clear(unsigned long addr, int numpages, pgprot_t prot)
+static int change_page_attr_clear(unsigned long addr, int numpages,
+ pgprot_t prot)
{
pgprot_t current_prot;
int level;
@@ -549,3 +518,11 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
__flush_tlb_all();
}
#endif
+
+/*
+ * The testcases use internal knowledge of the implementation that shouldn't
+ * be exposed to the rest of the kernel. Include these directly here.
+ */
+#ifdef CONFIG_CPA_DEBUG
+#include "pageattr-test.c"
+#endif
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index a95afaf1240..d15ff359d3e 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -27,7 +27,6 @@
void global_flush_tlb(void);
int __deprecated_for_modules change_page_attr(struct page *page, int numpages,
pgprot_t prot);
-int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot);
int set_pages_uc(struct page *page, int numpages);
int set_pages_wb(struct page *page, int numpages);