MIPS: Cavium: Add support for 8k and 32k page sizes.

Beyond the requirements of the architecture standard Cavium also supports
8k and 32k pages.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: David Daney <ddaney@caviumnetworks.com>

4 files changed, 23 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 1f7987793782..0ef30c81fea6 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -184,12 +184,19 @@
 #else
 
 #define PM_4K           0x00000000
+#define PM_8K           0x00002000
 #define PM_16K          0x00006000
+#define PM_32K          0x0000e000
 #define PM_64K          0x0001e000
+#define PM_128K         0x0003e000
 #define PM_256K         0x0007e000
+#define PM_512K         0x000fe000
 #define PM_1M           0x001fe000
+#define PM_2M           0x003fe000
 #define PM_4M           0x007fe000
+#define PM_8M           0x00ffe000
 #define PM_16M          0x01ffe000
+#define PM_32M          0x03ffe000
 #define PM_64M          0x07ffe000
 #define PM_256M         0x1fffe000
 #define PM_1G           0x7fffe000
@@ -201,8 +208,12 @@
  */
 #ifdef CONFIG_PAGE_SIZE_4KB
 #define PM_DEFAULT_MASK PM_4K
+#elif defined(CONFIG_PAGE_SIZE_8KB)
+#define PM_DEFAULT_MASK PM_8K
 #elif defined(CONFIG_PAGE_SIZE_16KB)
 #define PM_DEFAULT_MASK PM_16K
+#elif defined(CONFIG_PAGE_SIZE_32KB)
+#define PM_DEFAULT_MASK PM_32K
 #elif defined(CONFIG_PAGE_SIZE_64KB)
 #define PM_DEFAULT_MASK PM_64K
 #else
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index fe7a88ea066e..9f946e4ca057 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -23,6 +23,9 @@
 #ifdef CONFIG_PAGE_SIZE_16KB
 #define PAGE_SHIFT      14
 #endif
+#ifdef CONFIG_PAGE_SIZE_32KB
+#define PAGE_SHIFT      15
+#endif
 #ifdef CONFIG_PAGE_SIZE_64KB
 #define PAGE_SHIFT      16
 #endif
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index 943515f0ef87..4ed9d1bba2ba 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -83,6 +83,12 @@
 #define PMD_ORDER               0
 #define PTE_ORDER               0
 #endif
+#ifdef CONFIG_PAGE_SIZE_32KB
+#define PGD_ORDER               0
+#define PUD_ORDER               aieeee_attempt_to_allocate_pud
+#define PMD_ORDER               0
+#define PTE_ORDER               0
+#endif
 #ifdef CONFIG_PAGE_SIZE_64KB
 #define PGD_ORDER               0
 #define PUD_ORDER               aieeee_attempt_to_allocate_pud
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 676aa2ae1913..143a48136a4b 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -75,6 +75,9 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #ifdef CONFIG_PAGE_SIZE_16KB
 #define THREAD_SIZE_ORDER (0)
 #endif
+#ifdef CONFIG_PAGE_SIZE_32KB
+#define THREAD_SIZE_ORDER (0)
+#endif
 #ifdef CONFIG_PAGE_SIZE_64KB
 #define THREAD_SIZE_ORDER (0)
 #endif