Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (31 commits)
  [MIPS] Remove duplicate ISA DMA code for 0 DMA channel case.
  [MIPS] Remove unused definition of cpu_to_lelongp()
  [MIPS] Remove userspace proofing from <asm/bitops.h>.
  [MIPS] Remove old junk left from old atomic_lock.
  [MIPS] Use conditional traps for BUG_ON on MIPS II and better.
  [MIPS] mips HPT cleanup: make clocksource_mips public
  [MIPS] do_IRQ cleanup
  [MIPS] Avoid dupliate D-cache flush on R400C / R4400 SC and MC variants.
  [MIPS] Remove redundant r4k_blast_icache() calls
  [MIPS] Work around bogus gcc warnings.
  [MIPS] Fix double inclusions
  [MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq
  [MIPS] IRQ cleanups
  [MIPS] mips hpt cleanup: get rid of mips_hpt_init
  [MIPS] PB1200: Remove duplicate definitions
  [MIPS] Fix alignment hole in struct cache_desc; shrink struct.
  [MIPS] Oprofile: kernel support for the R10000.
  [MIPS] Remove unused R10000 performance counter definitions.
  [MIPS] Add support for kexec
  [MIPS] Don't print presence of WAIT instruction on bootup.
  ...

1 files changed, 13 insertions, 0 deletions

diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h
index 7e7320300aa3..b9b1e86493ee 100644
--- a/include/asm-mips/pgtable-64.h
+++ b/include/asm-mips/pgtable-64.h
@@ -14,6 +14,7 @@
 #include <asm/addrspace.h>
 #include <asm/page.h>
 #include <asm/cachectl.h>
+#include <asm/fixmap.h>
 
 #include <asm-generic/pgtable-nopud.h>
 
@@ -103,6 +104,13 @@
 #define VMALLOC_START           MAP_BASE
 #define VMALLOC_END     \
         (VMALLOC_START + PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE)
+#if defined(CONFIG_MODULES) && !defined(CONFIG_BUILD_ELF64) && \
+        VMALLOC_START != CKSSEG
+/* Load modules into 32bit-compatible segment. */
+#define MODULE_START    CKSSEG
+#define MODULE_END      (FIXADDR_START-2*PAGE_SIZE)
+extern pgd_t module_pg_dir[PTRS_PER_PGD];
+#endif
 
 #define pte_ERROR(e) \
         printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
@@ -174,7 +182,12 @@ static inline void pud_clear(pud_t *pudp)
 #define __pmd_offset(address)   pmd_index(address)
 
 /* to find an entry in a kernel page-table-directory */
+#ifdef MODULE_START
+#define pgd_offset_k(address) \
+        ((address) >= MODULE_START ? module_pg_dir : pgd_offset(&init_mm, 0UL))
+#else
 #define pgd_offset_k(address) pgd_offset(&init_mm, 0UL)
+#endif
 
 #define pgd_index(address)      (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
 #define pmd_index(address)      (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))