security: tf_driver: update with latest TL drop

Tegra 2 version: TF_TEGRA2_AA01.07.34078
Tegra 3 version: TF_TEGRA3_AB01.06.34049

Bug 950169

Signed-off-by: Chris Johnson <cwj@nvidia.com>
Reviewed-on: http://git-master/r/89927
(cherry picked from commit 28fc4a5b80a0f6db3e6dc50efd8c0412e2ae11bf)

Change-Id: I41413b4f00d243e3bb56d44fb32eea29d0291401
Reviewed-on: http://git-master/r/90445
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Chris Johnson <cwj@nvidia.com>
Tested-by: Chris Johnson <cwj@nvidia.com>
Reviewed-by: Karan Jhavar <kjhavar@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>

Conflicts:

	security/tf_driver/tf_comm.c

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Rebase-Id: R7d6137a8401fe5dea232f324ad65f398f9cf67f3

3 files changed, 20 insertions, 43 deletions

diff --git a/security/tf_driver/s_version.h b/security/tf_driver/s_version.h
index 6244d3fe7e8d..ba4d48c6f417 100644
--- a/security/tf_driver/s_version.h
+++ b/security/tf_driver/s_version.h
@@ -33,12 +33,12 @@
  */
 
 #define S_VERSION_OS "A"          /* "A" for all Android */
-#define S_VERSION_PLATFORM "B"    /* "B" for Tegra3 */
+#define S_VERSION_PLATFORM "A"    /* "A" for Tegra2 */
 
 /*
  * This version number must be updated for each new release
  */
-#define S_VERSION_MAIN  "01.03"
+#define S_VERSION_MAIN  "01.07"
 
 /*
 * If this is a patch or engineering version use the following
diff --git a/security/tf_driver/tf_comm.c b/security/tf_driver/tf_comm.c
index 16915beb406d..e71f37d79dc2 100644
--- a/security/tf_driver/tf_comm.c
+++ b/security/tf_driver/tf_comm.c
@@ -208,6 +208,7 @@ struct tf_coarse_page_table *tf_alloc_coarse_page_table(
 		}
 
 		array->type = type;
+		array->ref_count = 0;
 		INIT_LIST_HEAD(&(array->list));
 
 		/* now allocate the actual page the page descriptor describes */
@@ -236,7 +237,7 @@ struct tf_coarse_page_table *tf_alloc_coarse_page_table(
 				 */
 				coarse_pg_table =
 					&(array->coarse_page_tables[i]);
-				array->ref_count = 1;
+				array->ref_count++;
 			} else {
 				/*
 				 * The other elements are added to the free list
@@ -455,12 +456,11 @@ u32 tf_get_l2_descriptor_common(u32 vaddr, struct mm_struct *mm)
 			/*
 			 * Linux's pte doesn't keep track of TEX value.
 			 * Have to jump to hwpte see include/asm/pgtable.h
-			 * (-2k before 2.6.38, then +2k)
 			 */
 #ifdef PTE_HWTABLE_SIZE
-			hwpte = (u32 *) (ptep+PTE_HWTABLE_PTRS);
+			hwpte = (u32 *) (ptep + PTE_HWTABLE_PTRS);
 #else
-			hwpte = (u32 *) (ptep-PTRS_PER_PTE);
+			hwpte = (u32 *) (ptep - PTRS_PER_PTE);
 #endif
 			if (((*hwpte) & L2_DESCRIPTOR_ADDR_MASK) !=
 					((*ptep) & L2_DESCRIPTOR_ADDR_MASK))
@@ -839,52 +839,28 @@ int tf_fill_descriptor_table(
 					goto error;
 				}
 			}
-		} else if (is_vmalloc_addr((void *)buffer_offset_vaddr)) {
-			/* Kernel-space memory obtained through vmalloc */
-			dprintk(KERN_INFO
-				"tf_fill_descriptor_table: "
-				"vmalloc'ed buffer starting at %p\n",
-			       (void *)buffer_offset_vaddr);
-			for (j = page_shift; j < pages_to_get; j++) {
-				struct page *page;
-				void *addr =
-					(void *)(buffer_offset_vaddr +
-						(j - page_shift) * PAGE_SIZE);
-				page = vmalloc_to_page(addr);
-				if (page == NULL) {
-					dprintk(KERN_ERR
-						"tf_fill_descriptor_table: "
-						"cannot map %p (vmalloc) "
-						"to page\n",
-						addr);
-					ret = -EFAULT;
-					goto error;
-				}
-				coarse_pg_table->descriptors[j] = (u32)page;
-				get_page(page);
-
-				/* change coarse page "page address" */
-				tf_get_l2_page_descriptor(
-					&coarse_pg_table->descriptors[j],
-					flags,
-					&init_mm);
-			}
 		} else {
-			/* Kernel-space memory given by a virtual address */
+			/* Kernel-space memory */
 			dprintk(KERN_INFO
 				"tf_fill_descriptor_table: "
-				"buffer starting at virtual address %p\n",
+				"buffer starting at %p\n",
 			       (void *)buffer_offset_vaddr);
 			for (j = page_shift; j < pages_to_get; j++) {
 				struct page *page;
 				void *addr =
 					(void *)(buffer_offset_vaddr +
 						(j - page_shift) * PAGE_SIZE);
-				page = virt_to_page(addr);
+
+				if (is_vmalloc_addr(
+						(void *) buffer_offset_vaddr))
+					page = vmalloc_to_page(addr);
+				else
+					page = virt_to_page(addr);
+
 				if (page == NULL) {
 					dprintk(KERN_ERR
 						"tf_fill_descriptor_table: "
-						"cannot map %p (virtual) "
+						"cannot map %p (vmalloc) "
 						"to page\n",
 						addr);
 					ret = -EFAULT;
@@ -1256,8 +1232,9 @@ static int tf_send_recv(struct tf_comm *comm,
 	dprintk(KERN_INFO "[pid=%d] tf_send_recv(%p)\n",
 		 current->pid, command);
 
-#ifdef CONFIG_TF_ZEBRA
-	tf_clock_timer_start();
+#ifdef CONFIG_FREEZER
+	saved_flags = current->flags;
+	current->flags |= PF_KTHREAD;
 #endif
 
 #ifdef CONFIG_FREEZER
diff --git a/security/tf_driver/tf_device.c b/security/tf_driver/tf_device.c
index ad44b46c2067..5d5f3c63ce88 100644
--- a/security/tf_driver/tf_device.c
+++ b/security/tf_driver/tf_device.c
@@ -393,7 +393,7 @@ static int __init tf_device_register(void)
 	}
 
 #ifdef CONFIG_TF_DRIVER_CRYPTO_FIPS
-	error = tf_self_test_post_init(&(dev_stats->kobj));
+	error = tf_self_test_post_init(&(g_tf_dev.kobj));
 	/* N.B. error > 0 indicates a POST failure, which will not
 	   prevent the module from loading. */
 	if (error < 0) {