Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc update from Benjamin Herrenschmidt:
 "The main highlights this time around are:

   - A pile of addition POWER8 bits and nits, such as updated
     performance counter support (Michael Ellerman), new branch history
     buffer support (Anshuman Khandual), base support for the new PCI
     host bridge when not using the hypervisor (Gavin Shan) and other
     random related bits and fixes from various contributors.

   - Some rework of our page table format by Aneesh Kumar which fixes a
     thing or two and paves the way for THP support.  THP itself will
     not make it this time around however.

   - More Freescale updates, including Altivec support on the new e6500
     cores, new PCI controller support, and a pile of new boards support
     and updates.

   - The usual batch of trivial cleanups & fixes"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits)
  powerpc: Fix build error for book3e
  powerpc: Context switch the new EBB SPRs
  powerpc: Turn on the EBB H/FSCR bits
  powerpc: Replace CPU_FTR_BCTAR with CPU_FTR_ARCH_207S
  powerpc: Setup BHRB instructions facility in HFSCR for POWER8
  powerpc: Fix interrupt range check on debug exception
  powerpc: Update tlbie/tlbiel as per ISA doc
  powerpc: Print page size info during boot
  powerpc: print both base and actual page size on hash failure
  powerpc: Fix hpte_decode to use the correct decoding for page sizes
  powerpc: Decode the pte-lp-encoding bits correctly.
  powerpc: Use encode avpn where we need only avpn values
  powerpc: Reduce PTE table memory wastage
  powerpc: Move the pte free routines from common header
  powerpc: Reduce the PTE_INDEX_SIZE
  powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format
  powerpc: New hugepage directory format
  powerpc: Don't truncate pgd_index wrongly
  powerpc: Don't hard code the size of pte page
  powerpc: Save DAR and DSISR in pt_regs on MCE
  ...

1 files changed, 34 insertions, 17 deletions

diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 5b770262c673..5b3022470126 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -57,13 +57,31 @@
 #define VALIDATE_READY         -1001 /* Firmware image ready for validation */
 #define VALIDATE_PARAM_ERR     -3    /* RTAS Parameter Error */
 #define VALIDATE_HW_ERR        -1    /* RTAS Hardware Error */
-#define VALIDATE_TMP_UPDATE    0     /* Validate Return Status */
-#define VALIDATE_FLASH_AUTH    1     /* Validate Return Status */
-#define VALIDATE_INVALID_IMG   2     /* Validate Return Status */
-#define VALIDATE_CUR_UNKNOWN   3     /* Validate Return Status */
-#define VALIDATE_TMP_COMMIT_DL 4     /* Validate Return Status */
-#define VALIDATE_TMP_COMMIT    5     /* Validate Return Status */
-#define VALIDATE_TMP_UPDATE_DL 6     /* Validate Return Status */
+
+/* ibm,validate-flash-image update result tokens */
+#define VALIDATE_TMP_UPDATE    0     /* T side will be updated */
+#define VALIDATE_FLASH_AUTH    1     /* Partition does not have authority */
+#define VALIDATE_INVALID_IMG   2     /* Candidate image is not valid */
+#define VALIDATE_CUR_UNKNOWN   3     /* Current fixpack level is unknown */
+/*
+ * Current T side will be committed to P side before being replace with new
+ * image, and the new image is downlevel from current image
+ */
+#define VALIDATE_TMP_COMMIT_DL 4
+/*
+ * Current T side will be committed to P side before being replaced with new
+ * image
+ */
+#define VALIDATE_TMP_COMMIT    5
+/*
+ * T side will be updated with a downlevel image
+ */
+#define VALIDATE_TMP_UPDATE_DL 6
+/*
+ * The candidate image's release date is later than the system's firmware
+ * service entitlement date - service warranty period has expired
+ */
+#define VALIDATE_OUT_OF_WRNTY  7
 
 /* ibm,manage-flash-image operation tokens */
 #define RTAS_REJECT_TMP_IMG   0
@@ -287,12 +305,6 @@ static ssize_t rtas_flash_read_num(struct file *file, char __user *buf,
         return simple_read_from_buffer(buf, count, ppos, msg, strlen(msg));
 }
 
-/* constructor for flash_block_cache */
-static void rtas_block_ctor(void *ptr)
-{
-        memset(ptr, 0, RTAS_BLK_SIZE);
-}
-
 /* We could be much more efficient here.  But to keep this function
  * simple we allocate a page to the block list no matter how small the
  * count is.  If the system is low on memory it will be just as well
@@ -316,7 +328,7 @@ static ssize_t rtas_flash_write(struct file *file, const char __user *buffer,
          * proc file
          */
         if (uf->flist == NULL) {
-                uf->flist = kmem_cache_alloc(flash_block_cache, GFP_KERNEL);
+                uf->flist = kmem_cache_zalloc(flash_block_cache, GFP_KERNEL);
                 if (!uf->flist)
                         goto nomem;
         }
@@ -327,7 +339,7 @@ static ssize_t rtas_flash_write(struct file *file, const char __user *buffer,
         next_free = fl->num_blocks;
         if (next_free == FLASH_BLOCKS_PER_NODE) {
                 /* Need to allocate another block_list */
-                fl->next = kmem_cache_alloc(flash_block_cache, GFP_KERNEL);
+                fl->next = kmem_cache_zalloc(flash_block_cache, GFP_KERNEL);
                 if (!fl->next)
                         goto nomem;
                 fl = fl->next;
@@ -336,7 +348,7 @@ static ssize_t rtas_flash_write(struct file *file, const char __user *buffer,
 
         if (count > RTAS_BLK_SIZE)
                 count = RTAS_BLK_SIZE;
-        p = kmem_cache_alloc(flash_block_cache, GFP_KERNEL);
+        p = kmem_cache_zalloc(flash_block_cache, GFP_KERNEL);
         if (!p)
                 goto nomem;
         
@@ -700,7 +712,7 @@ static int __init rtas_flash_init(void)
 
         flash_block_cache = kmem_cache_create("rtas_flash_cache",
                                               RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0,
-                                              rtas_block_ctor);
+                                              NULL);
         if (!flash_block_cache) {
                 printk(KERN_ERR "%s: failed to create block cache\n",
                                 __func__);
@@ -746,6 +758,11 @@ static void __exit rtas_flash_cleanup(void)
 
         rtas_flash_term_hook = NULL;
 
+        if (rtas_firmware_flash_list) {
+                free_flash_list(rtas_firmware_flash_list);
+                rtas_firmware_flash_list = NULL;
+        }
+
         for (i = 0; i < ARRAY_SIZE(rtas_flash_files); i++) {
                 const struct rtas_flash_file *f = &rtas_flash_files[i];
                 remove_proc_entry(f->filename, NULL);