Merge tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "Fix running SPU programs on Cell, and a few other minor fixes.

  Thanks to Alistair Popple, Jeremy Kerr, Michael Neuling, Nicholas
  Piggin"

* tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc: Add PPC_FEATURE userspace bits for SCV and DARN instructions
  powerpc/spufs: Fix hash faults for kernel regions
  powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N
  powerpc/powernv/npu-dma.c: Fix opal_npu_destroy_context() call
  selftests/powerpc: Fix TM resched DSCR test with some compilers

6 files changed, 12 insertions, 6 deletions

diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h
index 3e7ce86d5c13..4d877144f377 100644
--- a/arch/powerpc/include/uapi/asm/cputable.h
+++ b/arch/powerpc/include/uapi/asm/cputable.h
@@ -46,6 +46,8 @@
 #define PPC_FEATURE2_HTM_NOSC           0x01000000
 #define PPC_FEATURE2_ARCH_3_00          0x00800000 /* ISA 3.00 */
 #define PPC_FEATURE2_HAS_IEEE128        0x00400000 /* VSX IEEE Binary Float 128-bit */
+#define PPC_FEATURE2_DARN               0x00200000 /* darn random number insn */
+#define PPC_FEATURE2_SCV                0x00100000 /* scv syscall */
 
 /*
  * IMPORTANT!
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 9b3e88b1a9c8..6f849832a669 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -124,7 +124,8 @@ extern void __restore_cpu_e6500(void);
 #define COMMON_USER_POWER9      COMMON_USER_POWER8
 #define COMMON_USER2_POWER9     (COMMON_USER2_POWER8 | \
                                  PPC_FEATURE2_ARCH_3_00 | \
-                                 PPC_FEATURE2_HAS_IEEE128)
+                                 PPC_FEATURE2_HAS_IEEE128 | \
+                                 PPC_FEATURE2_DARN )
 
 #ifdef CONFIG_PPC_BOOK3E_64
 #define COMMON_USER_BOOKE       (COMMON_USER_PPC64 | PPC_FEATURE_BOOKE)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 40c4887c27b6..f83056297441 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -161,7 +161,9 @@ static struct ibm_pa_feature {
         { .pabyte = 0,  .pabit = 3, .cpu_features  = CPU_FTR_CTRL },
         { .pabyte = 0,  .pabit = 6, .cpu_features  = CPU_FTR_NOEXECUTE },
         { .pabyte = 1,  .pabit = 2, .mmu_features  = MMU_FTR_CI_LARGE_PAGE },
+#ifdef CONFIG_PPC_RADIX_MMU
         { .pabyte = 40, .pabit = 0, .mmu_features  = MMU_FTR_TYPE_RADIX },
+#endif
         { .pabyte = 1,  .pabit = 1, .invert = 1, .cpu_features = CPU_FTR_NODSISRALIGN },
         { .pabyte = 5,  .pabit = 0, .cpu_features  = CPU_FTR_REAL_LE,
                                     .cpu_user_ftrs = PPC_FEATURE_TRUE_LE },
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 96c2b8a40630..0c45cdbac4cf 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -197,7 +197,9 @@ static int __spu_trap_data_map(struct spu *spu, unsigned long ea, u64 dsisr)
             (REGION_ID(ea) != USER_REGION_ID)) {
 
                 spin_unlock(&spu->register_lock);
-                ret = hash_page(ea, _PAGE_PRESENT | _PAGE_READ, 0x300, dsisr);
+                ret = hash_page(ea,
+                                _PAGE_PRESENT | _PAGE_READ | _PAGE_PRIVILEGED,
+                                0x300, dsisr);
                 spin_lock(&spu->register_lock);
 
                 if (!ret) {
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index 067defeea691..78fa9395b8c5 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -714,7 +714,7 @@ static void pnv_npu2_release_context(struct kref *kref)
 void pnv_npu2_destroy_context(struct npu_context *npu_context,
                         struct pci_dev *gpdev)
 {
-        struct pnv_phb *nphb, *phb;
+        struct pnv_phb *nphb;
         struct npu *npu;
         struct pci_dev *npdev = pnv_pci_get_npu_dev(gpdev, 0);
         struct device_node *nvlink_dn;
@@ -728,13 +728,12 @@ void pnv_npu2_destroy_context(struct npu_context *npu_context,
 
         nphb = pci_bus_to_host(npdev->bus)->private_data;
         npu = &nphb->npu;
-        phb = pci_bus_to_host(gpdev->bus)->private_data;
         nvlink_dn = of_parse_phandle(npdev->dev.of_node, "ibm,nvlink", 0);
         if (WARN_ON(of_property_read_u32(nvlink_dn, "ibm,npu-link-index",
                                                         &nvlink_index)))
                 return;
         npu_context->npdev[npu->index][nvlink_index] = NULL;
-        opal_npu_destroy_context(phb->opal_id, npu_context->mm->context.id,
+        opal_npu_destroy_context(nphb->opal_id, npu_context->mm->context.id,
                                 PCI_DEVID(gpdev->bus->number, gpdev->devfn));
         kref_put(&npu_context->kref, pnv_npu2_release_context);
 }
diff --git a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
index d9c49f41515e..e79ccd6aada1 100644
--- a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
+++ b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
@@ -42,12 +42,12 @@ int test_body(void)
         printf("Check DSCR TM context switch: ");
         fflush(stdout);
         for (;;) {
-                rv = 1;
                 asm __volatile__ (
                         /* set a known value into the DSCR */
                         "ld      3, %[dscr1];"
                         "mtspr   %[sprn_dscr], 3;"
 
+                        "li      %[rv], 1;"
                         /* start and suspend a transaction */
                         "tbegin.;"
                         "beq     1f;"