4 files changed, 14 insertions, 1 deletions

diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 1f4df647c384..272c5ef35bbb 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -191,6 +191,9 @@
 # ifndef cpu_has_64bit_addresses
 # define cpu_has_64bit_addresses        0
 # endif
+# ifndef cpu_vmbits
+# define cpu_vmbits 31
+# endif
 #endif
 
 #ifdef CONFIG_64BIT
@@ -209,6 +212,10 @@
 # ifndef cpu_has_64bit_addresses
 # define cpu_has_64bit_addresses        1
 # endif
+# ifndef cpu_vmbits
+# define cpu_vmbits cpu_data[0].vmbits
+# define __NEED_VMBITS_PROBE
+# endif
 #endif
 
 #if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint)
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index 126044308dec..b39def3f6e03 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -58,6 +58,9 @@ struct cpuinfo_mips {
         struct cache_desc       tcache; /* Tertiary/split secondary cache */
         int                     srsets; /* Shadow register sets */
         int                     core;   /* physical core number */
+#ifdef CONFIG_64BIT
+        int                     vmbits; /* Virtual memory size in bits */
+#endif
 #if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
         /*
          * In the MIPS MT "SMTC" model, each TC is considered
diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
index 06f68f43800a..d206000fbfe2 100644
--- a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
@@ -305,6 +305,7 @@ typedef struct dbdma_chan_config {
         dbdev_tab_t             *chan_dest;
         au1x_dma_chan_t         *chan_ptr;
         au1x_ddma_desc_t        *chan_desc_base;
+        u32                     cdb_membase; /* kmalloc base of above */
         au1x_ddma_desc_t        *get_ptr, *put_ptr, *cur_ptr;
         void                    *chan_callparam;
         void                    (*chan_callback)(int, void *);
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index 9cd508993956..8eda30b467da 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -110,7 +110,9 @@
 #define VMALLOC_START           MAP_BASE
 #define VMALLOC_END     \
         (VMALLOC_START + \
-         PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE - (1UL << 32))
+         min(PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, \
+             (1UL << cpu_vmbits)) - (1UL << 32))
+
 #if defined(CONFIG_MODULES) && defined(KBUILD_64BIT_SYM32) && \
         VMALLOC_START != CKSSEG
 /* Load modules into 32bit-compatible segment. */