11 files changed, 38 insertions, 93 deletions

diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
index 028a8444d95e..e8acd1f03456 100644
--- a/Documentation/DocBook/kgdb.tmpl
+++ b/Documentation/DocBook/kgdb.tmpl
@@ -84,10 +84,9 @@
     runs an instance of gdb against the vmlinux file which contains
     the symbols (not boot image such as bzImage, zImage, uImage...).
     In gdb the developer specifies the connection parameters and
-    connects to kgdb.  Depending on which kgdb I/O modules exist in
-    the kernel for a given architecture, it may be possible to debug
-    the test machine's kernel with the development machine using a
-    rs232 or ethernet connection.
+    connects to kgdb.  The type of connection a developer makes with
+    gdb depends on the availability of kgdb I/O modules compiled as
+    builtin's or kernel modules in the test machine's kernel.
     </para>
   </chapter>
   <chapter id="CompilingAKernel">
@@ -223,7 +222,7 @@
   </para>
   <para>
   IMPORTANT NOTE: Using this option with kgdb over the console
-  (kgdboc) or kgdb over ethernet (kgdboe) is not supported.
+  (kgdboc) is not supported.
   </para>
   </sect1>
   </chapter>
@@ -249,18 +248,11 @@
     (gdb) target remote /dev/ttyS0
     </programlisting>
     <para>
-    Example (kgdb to a terminal server):
+    Example (kgdb to a terminal server on tcp port 2012):
     </para>
     <programlisting>
     % gdb ./vmlinux
-    (gdb) target remote udp:192.168.2.2:6443
-    </programlisting>
-    <para>
-    Example (kgdb over ethernet):
-    </para>
-    <programlisting>
-    % gdb ./vmlinux
-    (gdb) target remote udp:192.168.2.2:6443
+    (gdb) target remote 192.168.2.2:2012
     </programlisting>
     <para>
     Once connected, you can debug a kernel the way you would debug an
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 3a4f16aea4bf..6c388e593bc8 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -7,7 +7,7 @@ config XEN
         select PARAVIRT
         select PARAVIRT_CLOCK
         depends on X86_32
-        depends on X86_CMPXCHG && X86_TSC && !(X86_VISWS || X86_VOYAGER)
+        depends on X86_CMPXCHG && X86_TSC && X86_PAE && !(X86_VISWS || X86_VOYAGER)
         help
           This is the Linux Xen port.  Enabling this will allow the
           kernel to boot in a paravirtualized environment under the
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index c048de34d6a1..f09c1c69c37a 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -785,38 +785,35 @@ static __init void xen_set_pte_init(pte_t *ptep, pte_t pte)
 static __init void xen_pagetable_setup_start(pgd_t *base)
 {
         pgd_t *xen_pgd = (pgd_t *)xen_start_info->pt_base;
+        int i;
 
         /* special set_pte for pagetable initialization */
         pv_mmu_ops.set_pte = xen_set_pte_init;
 
         init_mm.pgd = base;
         /*
-         * copy top-level of Xen-supplied pagetable into place.  For
-         * !PAE we can use this as-is, but for PAE it is a stand-in
-         * while we copy the pmd pages.
+         * copy top-level of Xen-supplied pagetable into place.  This
+         * is a stand-in while we copy the pmd pages.
          */
         memcpy(base, xen_pgd, PTRS_PER_PGD * sizeof(pgd_t));
 
-        if (PTRS_PER_PMD > 1) {
-                int i;
-                /*
-                 * For PAE, need to allocate new pmds, rather than
-                 * share Xen's, since Xen doesn't like pmd's being
-                 * shared between address spaces.
-                 */
-                for (i = 0; i < PTRS_PER_PGD; i++) {
-                        if (pgd_val_ma(xen_pgd[i]) & _PAGE_PRESENT) {
-                                pmd_t *pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+        /*
+         * For PAE, need to allocate new pmds, rather than
+         * share Xen's, since Xen doesn't like pmd's being
+         * shared between address spaces.
+         */
+        for (i = 0; i < PTRS_PER_PGD; i++) {
+                if (pgd_val_ma(xen_pgd[i]) & _PAGE_PRESENT) {
+                        pmd_t *pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
 
-                                memcpy(pmd, (void *)pgd_page_vaddr(xen_pgd[i]),
-                                       PAGE_SIZE);
+                        memcpy(pmd, (void *)pgd_page_vaddr(xen_pgd[i]),
+                               PAGE_SIZE);
 
-                                make_lowmem_page_readonly(pmd);
+                        make_lowmem_page_readonly(pmd);
 
-                                set_pgd(&base[i], __pgd(1 + __pa(pmd)));
-                        } else
-                                pgd_clear(&base[i]);
-                }
+                        set_pgd(&base[i], __pgd(1 + __pa(pmd)));
+                } else
+                        pgd_clear(&base[i]);
         }
 
         /* make sure zero_page is mapped RO so we can use it in pagetables */
@@ -873,17 +870,7 @@ static __init void xen_pagetable_setup_done(pgd_t *base)
 
         /* Actually pin the pagetable down, but we can't set PG_pinned
            yet because the page structures don't exist yet. */
-        {
-                unsigned level;
-
-#ifdef CONFIG_X86_PAE
-                level = MMUEXT_PIN_L3_TABLE;
-#else
-                level = MMUEXT_PIN_L2_TABLE;
-#endif
-
-                pin_pagetable_pfn(level, PFN_DOWN(__pa(base)));
-        }
+        pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(base)));
 }
 
 /* This is called once we have the cpu_possible_map */
@@ -1093,7 +1080,6 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = {
         .make_pte = xen_make_pte,
         .make_pgd = xen_make_pgd,
 
-#ifdef CONFIG_X86_PAE
         .set_pte_atomic = xen_set_pte_atomic,
         .set_pte_present = xen_set_pte_at,
         .set_pud = xen_set_pud,
@@ -1102,7 +1088,6 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = {
 
         .make_pmd = xen_make_pmd,
         .pmd_val = xen_pmd_val,
-#endif  /* PAE */
 
         .activate_mm = xen_activate_mm,
         .dup_mmap = xen_dup_mmap,
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 265601d5a6ae..df40bf74ea75 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -228,7 +228,7 @@ pmdval_t xen_pmd_val(pmd_t pmd)
 {
         return pte_mfn_to_pfn(pmd.pmd);
 }
-#ifdef CONFIG_X86_PAE
+
 void xen_set_pud(pud_t *ptr, pud_t val)
 {
         struct multicall_space mcs;
@@ -276,12 +276,6 @@ pmd_t xen_make_pmd(pmdval_t pmd)
         pmd = pte_pfn_to_mfn(pmd);
         return native_make_pmd(pmd);
 }
-#else  /* !PAE */
-void xen_set_pte(pte_t *ptep, pte_t pte)
-{
-        *ptep = pte;
-}
-#endif  /* CONFIG_X86_PAE */
 
 /*
   (Yet another) pagetable walker.  This one is intended for pinning a
@@ -434,8 +428,6 @@ static int pin_page(struct page *page, enum pt_level level)
    read-only, and can be pinned. */
 void xen_pgd_pin(pgd_t *pgd)
 {
-        unsigned level;
-
         xen_mc_batch();
 
         if (pgd_walk(pgd, pin_page, TASK_SIZE)) {
@@ -445,14 +437,7 @@ void xen_pgd_pin(pgd_t *pgd)
                 xen_mc_batch();
         }
 
-#ifdef CONFIG_X86_PAE
-        level = MMUEXT_PIN_L3_TABLE;
-#else
-        level = MMUEXT_PIN_L2_TABLE;
-#endif
-
-        xen_do_pin(level, PFN_DOWN(__pa(pgd)));
-
+        xen_do_pin(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(pgd)));
         xen_mc_issue(0);
 }
 
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index b5e189b1519d..5fe961caffd4 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -37,14 +37,13 @@ void xen_exit_mmap(struct mm_struct *mm);
 void xen_pgd_pin(pgd_t *pgd);
 //void xen_pgd_unpin(pgd_t *pgd);
 
-#ifdef CONFIG_X86_PAE
-unsigned long long xen_pte_val(pte_t);
-unsigned long long xen_pmd_val(pmd_t);
-unsigned long long xen_pgd_val(pgd_t);
+pteval_t xen_pte_val(pte_t);
+pmdval_t xen_pmd_val(pmd_t);
+pgdval_t xen_pgd_val(pgd_t);
 
-pte_t xen_make_pte(unsigned long long);
-pmd_t xen_make_pmd(unsigned long long);
-pgd_t xen_make_pgd(unsigned long long);
+pte_t xen_make_pte(pteval_t);
+pmd_t xen_make_pmd(pmdval_t);
+pgd_t xen_make_pgd(pgdval_t);
 
 void xen_set_pte_at(struct mm_struct *mm, unsigned long addr,
                     pte_t *ptep, pte_t pteval);
@@ -53,15 +52,4 @@ void xen_set_pud(pud_t *ptr, pud_t val);
 void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
 void xen_pmd_clear(pmd_t *pmdp);
 
-
-#else
-unsigned long xen_pte_val(pte_t);
-unsigned long xen_pmd_val(pmd_t);
-unsigned long xen_pgd_val(pgd_t);
-
-pte_t xen_make_pte(unsigned long);
-pmd_t xen_make_pmd(unsigned long);
-pgd_t xen_make_pgd(unsigned long);
-#endif
-
 #endif  /* _XEN_MMU_H */
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 3175e973fd0d..6ec3b4f7719b 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -30,11 +30,7 @@ ENTRY(hypercall_page)
         ELFNOTE(Xen, XEN_ELFNOTE_ENTRY,          .long  startup_xen)
         ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long  hypercall_page)
         ELFNOTE(Xen, XEN_ELFNOTE_FEATURES,       .asciz "!writable_page_tables|pae_pgdir_above_4gb")
-#ifdef CONFIG_X86_PAE
         ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE,       .asciz "yes")
-#else
-        ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE,       .asciz "no")
-#endif
         ELFNOTE(Xen, XEN_ELFNOTE_LOADER,         .asciz "generic")
 
 #endif /*CONFIG_XEN */
diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c
index e8f3d682e3b1..93aed1c38bd2 100644
--- a/drivers/char/drm/i915_drv.c
+++ b/drivers/char/drm/i915_drv.c
@@ -389,6 +389,7 @@ static int i915_resume(struct drm_device *dev)
         pci_restore_state(dev->pdev);
         if (pci_enable_device(dev->pdev))
                 return -1;
+        pci_set_master(dev->pdev);
 
         pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
 
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 8662a6b7a30b..25b352b664d9 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -68,7 +68,6 @@ obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
 obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
 obj-$(CONFIG_ITCO_WDT) += iTCO_wdt.o iTCO_vendor_support.o
 obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o
-CFLAGS_hpwdt.o += -O
 obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o
 obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
 obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
diff --git a/include/asm-alpha/percpu.h b/include/asm-alpha/percpu.h
index 82e8a94b4b2f..3495e8e00d70 100644
--- a/include/asm-alpha/percpu.h
+++ b/include/asm-alpha/percpu.h
@@ -69,6 +69,8 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
 #define __get_cpu_var(var)              per_cpu_var(var)
 #define __raw_get_cpu_var(var)          per_cpu_var(var)
 
+#define PER_CPU_ATTRIBUTES
+
 #endif /* SMP */
 
 #define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu_var(name)
diff --git a/include/asm-x86/xen/page.h b/include/asm-x86/xen/page.h
index baf3a4dce28c..e11f24038b1d 100644
--- a/include/asm-x86/xen/page.h
+++ b/include/asm-x86/xen/page.h
@@ -150,13 +150,9 @@ static inline pte_t __pte_ma(pteval_t x)
         return (pte_t) { .pte = x };
 }
 
-#ifdef CONFIG_X86_PAE
 #define pmd_val_ma(v) ((v).pmd)
 #define pud_val_ma(v) ((v).pgd.pgd)
 #define __pmd_ma(x)     ((pmd_t) { (x) } )
-#else  /* !X86_PAE */
-#define pmd_val_ma(v)   ((v).pud.pgd.pgd)
-#endif  /* CONFIG_X86_PAE */
 
 #define pgd_val_ma(x)   ((x).pgd)
 
diff --git a/kernel/kgdb.c b/kernel/kgdb.c
index 79e3c90113c2..3ec23c3ec97f 100644
--- a/kernel/kgdb.c
+++ b/kernel/kgdb.c
@@ -1499,7 +1499,8 @@ int kgdb_nmicallback(int cpu, void *regs)
         return 1;
 }
 
-void kgdb_console_write(struct console *co, const char *s, unsigned count)
+static void kgdb_console_write(struct console *co, const char *s,
+   unsigned count)
 {
         unsigned long flags;