Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Use generic compat_sys_old_readdir
  powerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion
  powerpc: Remove dead module_find_bug code
  powerpc: Add CMO enabled flag and paging space data to lparcfg
  powerpc: Fix CMM page loaning on 64k page kernel with 4k hardware pages
  powerpc: Make CMO paging space pool ID and page size available
  powerpc: Fix lockdep IRQ tracing bug
  powerpc: Fix TLB invalidation on boot on 32-bit
  powerpc: Fix loss of vdso on fork on 32-bit

diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index fbe2932fa9e9660d0a896dea589d4ac1ad6e17c3..6251a4b10be7a9a2004592b6aa7dff7994c09b0e 100644 (file)
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -291,6 +291,28 @@ struct hvcall_mpp_data {
 };
 
 int h_get_mpp(struct hvcall_mpp_data *);
+
+#ifdef CONFIG_PPC_PSERIES
+extern int CMO_PrPSP;
+extern int CMO_SecPSP;
+extern unsigned long CMO_PageSize;
+
+static inline int cmo_get_primary_psp(void)
+{
+       return CMO_PrPSP;
+}
+
+static inline int cmo_get_secondary_psp(void)
+{
+       return CMO_SecPSP;
+}
+
+static inline unsigned long cmo_get_page_size(void)
+{
+       return CMO_PageSize;
+}
+#endif /* CONFIG_PPC_PSERIES */
+
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_HVCALL_H */

diff --git a/arch/powerpc/include/asm/irqflags.h b/arch/powerpc/include/asm/irqflags.h
index 17ba3a881bfdff71d813d2030087b6ab04207ba0..5f68ecfdf516bf85d2094396363849647dae9ebd 100644 (file)
--- a/arch/powerpc/include/asm/irqflags.h
+++ b/arch/powerpc/include/asm/irqflags.h
@@ -20,7 +20,7 @@
 #define TRACE_ENABLE_INTS      bl .trace_hardirqs_on
 #define TRACE_DISABLE_INTS     bl .trace_hardirqs_off
 #define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip) \
-       cmpdi   en, 0;                          \
+       cmpdi   en,0;                           \
        bne     95f;                            \
        stb     en,PACASOFTIRQEN(r13);          \
        bl      .trace_hardirqs_off;            \
@@ -29,7 +29,8 @@
        li      en,1;
 #define TRACE_AND_RESTORE_IRQ(en)              \
        TRACE_AND_RESTORE_IRQ_PARTIAL(en,96f);  \
-96:    stb     en,PACASOFTIRQEN(r13)
+       stb     en,PACASOFTIRQEN(r13);          \
+96:
 #else
 #define TRACE_ENABLE_INTS
 #define TRACE_DISABLE_INTS

diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
index 9102b8bf0ead02863ac30fcc0f055fa1cf41c743..6b993ef452ff8010c6c539f34145621fa6b3c4dd 100644 (file)
--- a/arch/powerpc/include/asm/mmu_context.h
+++ b/arch/powerpc/include/asm/mmu_context.h
@@ -147,7 +147,6 @@ static inline void get_mmu_context(struct mm_struct *mm)
 static inline int init_new_context(struct task_struct *t, struct mm_struct *mm)
 {
        mm->context.id = NO_CONTEXT;
-       mm->context.vdso_base = 0;
        return 0;
 }
 

diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index e084272ed1c26f4d5dc985c254f9550093041875..f6cc7a43b4faadeb17f080794ff7e8d2a06f4a72 100644 (file)
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -92,7 +92,7 @@ COMPAT_SYS_SPU(readlink)
 SYSCALL(uselib)
 SYSCALL(swapon)
 SYSCALL(reboot)
-SYSX(sys_ni_syscall,old32_readdir,old_readdir)
+SYSX(sys_ni_syscall,compat_sys_old_readdir,old_readdir)
 SYSCALL_SPU(mmap)
 SYSCALL_SPU(munmap)
 SYSCALL_SPU(truncate)

diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index 99ee2f0f0f2bdcef067df7179e9614c459838983..8bb65751929948fbc35e29fce9fb899058d9b39a 100644 (file)
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -1155,7 +1155,7 @@ flush_tlbs:
        lis     r10, 0x40
 1:     addic.  r10, r10, -0x1000
        tlbie   r10
-       blt     1b
+       bgt     1b
        sync
        blr
 

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 1a09719c7628219b5f75ededaf848ec8158fa227..b3eef30b5131a0d1eaf43551ae0d0aa2ccda6d92 100644 (file)
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -416,6 +416,8 @@ static void pseries_cmo_data(struct seq_file *m)
        unsigned long cmo_faults = 0;
        unsigned long cmo_fault_time = 0;
 
+       seq_printf(m, "cmo_enabled=%d\n", firmware_has_feature(FW_FEATURE_CMO));
+
        if (!firmware_has_feature(FW_FEATURE_CMO))
                return;
 
@@ -427,6 +429,9 @@ static void pseries_cmo_data(struct seq_file *m)
        seq_printf(m, "cmo_faults=%lu\n", cmo_faults);
        seq_printf(m, "cmo_fault_time_usec=%lu\n",
                   cmo_fault_time / tb_ticks_per_usec);
+       seq_printf(m, "cmo_primary_psp=%d\n", cmo_get_primary_psp());
+       seq_printf(m, "cmo_secondary_psp=%d\n", cmo_get_secondary_psp());
+       seq_printf(m, "cmo_page_size=%lu\n", cmo_get_page_size());
 }
 
 static int pseries_lparcfg_data(struct seq_file *m, void *v)

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 6321ae36f7292d03cce3eab12db6a43369464df7..7a6dfbca76821bd5e49cbbb04fcda1d045441907 100644 (file)
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -899,7 +899,7 @@ relocate_new_kernel:
 
        /* set a new stack at the bottom of our page... */
        /* (not really needed now) */
-       addi    r1, r4, KEXEC_CONTROL_CODE_SIZE - 8 /* for LR Save+Back Chain */
+       addi    r1, r4, KEXEC_CONTROL_PAGE_SIZE - 8 /* for LR Save+Back Chain */
        stw     r0, 0(r1)
 
        /* Do the copies */

diff --git a/arch/powerpc/kernel/module.c b/arch/powerpc/kernel/module.c
index af07003573c476d5347967f4667328d49ab68022..7ff292475269f10fb1e1e4ad85270587c4756d15 100644 (file)
--- a/arch/powerpc/kernel/module.c
+++ b/arch/powerpc/kernel/module.c
@@ -99,18 +99,3 @@ void module_arch_cleanup(struct module *mod)
 {
        module_bug_cleanup(mod);
 }
-
-struct bug_entry *module_find_bug(unsigned long bugaddr)
-{
-       struct mod_arch_specific *mod;
-       unsigned int i;
-       struct bug_entry *bug;
-
-       list_for_each_entry(mod, &module_bug_list, bug_list) {
-               bug = mod->bug_table;
-               for (i = 0; i < mod->num_bugs; ++i, ++bug)
-                       if (bugaddr == bug->bug_addr)
-                               return bug;
-       }
-       return NULL;
-}

diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 709f8cb8bfca1475e2157420bc3092d8d2893186..d98634c76060e735290c03f0fabff5d635437e8c 100644 (file)
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -52,63 +52,6 @@
 #include <asm/ppc-pci.h>
 #include <asm/syscalls.h>
 
-struct old_linux_dirent32 {
-       u32             d_ino;
-       u32             d_offset;
-       unsigned short  d_namlen;
-       char            d_name[1];
-};
-
-struct readdir_callback32 {
-       struct old_linux_dirent32 __user * dirent;
-       int count;
-};
-
-static int fillonedir(void * __buf, const char * name, int namlen,
-                                 off_t offset, u64 ino, unsigned int d_type)
-{
-       struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
-       struct old_linux_dirent32 __user * dirent;
-       ino_t d_ino;
-
-       if (buf->count)
-               return -EINVAL;
-       d_ino = ino;
-       if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
-               return -EOVERFLOW;
-       buf->count++;
-       dirent = buf->dirent;
-       put_user(d_ino, &dirent->d_ino);
-       put_user(offset, &dirent->d_offset);
-       put_user(namlen, &dirent->d_namlen);
-       copy_to_user(dirent->d_name, name, namlen);
-       put_user(0, dirent->d_name + namlen);
-       return 0;
-}
-
-asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count)
-{
-       int error = -EBADF;
-       struct file * file;
-       struct readdir_callback32 buf;
-
-       file = fget(fd);
-       if (!file)
-               goto out;
-
-       buf.count = 0;
-       buf.dirent = dirent;
-
-       error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
-       if (error < 0)
-               goto out_putf;
-       error = buf.count;
-
-out_putf:
-       fput(file);
-out:
-       return error;
-}
 
 asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
                compat_ulong_t __user *outp, compat_ulong_t __user *exp,

diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index a437267c6bf86efb7443a44bfbf9ed693614371a..d967c1893ab5f1a8093f3fea1225ff240124ec12 100644 (file)
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -2,6 +2,7 @@
 #define _PSERIES_PLPAR_WRAPPERS_H
 
 #include <asm/hvcall.h>
+#include <asm/page.h>
 
 static inline long poll_pending(void)
 {
@@ -44,12 +45,34 @@ static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
 
 static inline long plpar_page_set_loaned(unsigned long vpa)
 {
-       return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa, 0);
+       unsigned long cmo_page_sz = cmo_get_page_size();
+       long rc = 0;
+       int i;
+
+       for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz)
+               rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa + i, 0);
+
+       for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz)
+               plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE,
+                                  vpa + i - cmo_page_sz, 0);
+
+       return rc;
 }
 
 static inline long plpar_page_set_active(unsigned long vpa)
 {
-       return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa, 0);
+       unsigned long cmo_page_sz = cmo_get_page_size();
+       long rc = 0;
+       int i;
+
+       for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz)
+               rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa + i, 0);
+
+       for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz)
+               plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED,
+                                  vpa + i - cmo_page_sz, 0);
+
+       return rc;
 }
 
 extern void vpa_init(int cpu);

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 063a0d2fba30e2576771a300460220c4e21c4cec..3ce8a139b85d20b16aac2c9ca82746720f74951b 100644 (file)
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -68,6 +68,9 @@
 #include "plpar_wrappers.h"
 #include "pseries.h"
 
+int CMO_PrPSP = -1;
+int CMO_SecPSP = -1;
+unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT);
 
 int fwnmi_active;  /* TRUE if an FWNMI handler is present */
 
@@ -325,8 +328,7 @@ void pSeries_cmo_feature_init(void)
 {
        char *ptr, *key, *value, *end;
        int call_status;
-       int PrPSP = -1;
-       int SecPSP = -1;
+       int page_order = IOMMU_PAGE_SHIFT;
 
        pr_debug(" -> fw_cmo_feature_init()\n");
        spin_lock(&rtas_data_buf_lock);
@@ -365,21 +367,31 @@ void pSeries_cmo_feature_init(void)
                                break;
                        }
 
-                       if (0 == strcmp(key, "PrPSP"))
-                               PrPSP = simple_strtol(value, NULL, 10);
+                       if (0 == strcmp(key, "CMOPageSize"))
+                               page_order = simple_strtol(value, NULL, 10);
+                       else if (0 == strcmp(key, "PrPSP"))
+                               CMO_PrPSP = simple_strtol(value, NULL, 10);
                        else if (0 == strcmp(key, "SecPSP"))
-                               SecPSP = simple_strtol(value, NULL, 10);
+                               CMO_SecPSP = simple_strtol(value, NULL, 10);
                        value = key = ptr + 1;
                }
                ptr++;
        }
 
-       if (PrPSP != -1 || SecPSP != -1) {
+       /* Page size is returned as the power of 2 of the page size,
+        * convert to the page size in bytes before returning
+        */
+       CMO_PageSize = 1 << page_order;
+       pr_debug("CMO_PageSize = %lu\n", CMO_PageSize);
+
+       if (CMO_PrPSP != -1 || CMO_SecPSP != -1) {
                pr_info("CMO enabled\n");
-               pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", PrPSP, SecPSP);
+               pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
+                        CMO_SecPSP);
                powerpc_firmware_features |= FW_FEATURE_CMO;
        } else
-               pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", PrPSP, SecPSP);
+               pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
+                        CMO_SecPSP);
        spin_unlock(&rtas_data_buf_lock);
        pr_debug(" <- fw_cmo_feature_init()\n");
 }