powerpc updates for 4.17

Notable changes:
 
  - Support for 4PB user address space on 64-bit, opt-in via mmap().
 
  - Removal of POWER4 support, which was accidentally broken in 2016 and no one
    noticed, and blocked use of some modern instructions.
 
  - Workarounds so that the hypervisor can enable Transactional Memory on Power9.
 
  - A series to disable the DAWR (Data Address Watchpoint Register) on Power9.
 
  - More information displayed in the meltdown/spectre_v1/v2 sysfs files.
 
  - A vpermxor (Power8 Altivec) implementation for the raid6 Q Syndrome.
 
  - A big series to make the allocation of our pacas (per cpu area), kernel page
    tables, and per-cpu stacks NUMA aware when using the Radix MMU on Power9.
 
 And as usual many fixes, reworks and cleanups.
 
 Thanks to:
   Aaro Koskinen, Alexandre Belloni, Alexey Kardashevskiy, Alistair Popple, Andy
   Shevchenko, Aneesh Kumar K.V, Anshuman Khandual, Balbir Singh, Benjamin
   Herrenschmidt, Christophe Leroy, Christophe Lombard, Cyril Bur, Daniel Axtens,
   Dave Young, Finn Thain, Frederic Barrat, Gustavo Romero, Horia Geantă,
   Jonathan Neuschäfer, Kees Cook, Larry Finger, Laurent Dufour, Laurent Vivier,
   Logan Gunthorpe, Madhavan Srinivasan, Mark Greer, Mark Hairgrove, Markus
   Elfring, Mathieu Malaterre, Matt Brown, Matt Evans, Mauricio Faria de
   Oliveira, Michael Neuling, Naveen N. Rao, Nicholas Piggin, Paul Mackerras,
   Philippe Bergheaud, Ram Pai, Rob Herring, Sam Bobroff, Segher Boessenkool,
   Simon Guo, Simon Horman, Stewart Smith, Sukadev Bhattiprolu, Suraj Jitindar
   Singh, Thiago Jung Bauermann, Vaibhav Jain, Vaidyanathan Srinivasan, Vasant
   Hegde, Wei Yongjun.
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Merge tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - Support for 4PB user address space on 64-bit, opt-in via mmap().

   - Removal of POWER4 support, which was accidentally broken in 2016
     and no one noticed, and blocked use of some modern instructions.

   - Workarounds so that the hypervisor can enable Transactional Memory
     on Power9.

   - A series to disable the DAWR (Data Address Watchpoint Register) on
     Power9.

   - More information displayed in the meltdown/spectre_v1/v2 sysfs
     files.

   - A vpermxor (Power8 Altivec) implementation for the raid6 Q
     Syndrome.

   - A big series to make the allocation of our pacas (per cpu area),
     kernel page tables, and per-cpu stacks NUMA aware when using the
     Radix MMU on Power9.

  And as usual many fixes, reworks and cleanups.

  Thanks to: Aaro Koskinen, Alexandre Belloni, Alexey Kardashevskiy,
  Alistair Popple, Andy Shevchenko, Aneesh Kumar K.V, Anshuman Khandual,
  Balbir Singh, Benjamin Herrenschmidt, Christophe Leroy, Christophe
  Lombard, Cyril Bur, Daniel Axtens, Dave Young, Finn Thain, Frederic
  Barrat, Gustavo Romero, Horia Geantă, Jonathan Neuschäfer, Kees Cook,
  Larry Finger, Laurent Dufour, Laurent Vivier, Logan Gunthorpe,
  Madhavan Srinivasan, Mark Greer, Mark Hairgrove, Markus Elfring,
  Mathieu Malaterre, Matt Brown, Matt Evans, Mauricio Faria de Oliveira,
  Michael Neuling, Naveen N. Rao, Nicholas Piggin, Paul Mackerras,
  Philippe Bergheaud, Ram Pai, Rob Herring, Sam Bobroff, Segher
  Boessenkool, Simon Guo, Simon Horman, Stewart Smith, Sukadev
  Bhattiprolu, Suraj Jitindar Singh, Thiago Jung Bauermann, Vaibhav
  Jain, Vaidyanathan Srinivasan, Vasant Hegde, Wei Yongjun"

* tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (207 commits)
  powerpc/64s/idle: Fix restore of AMOR on POWER9 after deep sleep
  powerpc/64s: Fix POWER9 DD2.2 and above in cputable features
  powerpc/64s: Fix pkey support in dt_cpu_ftrs, add CPU_FTR_PKEY bit
  powerpc/64s: Fix dt_cpu_ftrs to have restore_cpu clear unwanted LPCR bits
  Revert "powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead"
  powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo}
  powerpc: io.h: move iomap.h include so that it can use readq/writeq defs
  cxl: Fix possible deadlock when processing page faults from cxllib
  powerpc/hw_breakpoint: Only disable hw breakpoint if cpu supports it
  powerpc/mm/radix: Update command line parsing for disable_radix
  powerpc/mm/radix: Parse disable_radix commandline correctly.
  powerpc/mm/hugetlb: initialize the pagetable cache correctly for hugetlb
  powerpc/mm/radix: Update pte fragment count from 16 to 256 on radix
  powerpc/mm/keys: Update documentation and remove unnecessary check
  powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead
  powerpc/64s/idle: Consolidate power9_offline_stop()/power9_idle_stop()
  powerpc/powernv: Always stop secondaries before reboot/shutdown
  powerpc: hard disable irqs in smp_send_stop loop
  powerpc: use NMI IPI for smp_send_stop
  powerpc/powernv: Fix SMT4 forcing idle code
  ...

drivers/macintosh/adb-iop.c

@@ -53,13 +53,13 @@ static void adb_iop_poll(void);
 static int adb_iop_reset_bus(void);
 
 struct adb_driver adb_iop_driver = {
-	"ISM IOP",
-	adb_iop_probe,
-	adb_iop_init,
-	adb_iop_send_request,
-	adb_iop_autopoll,
-	adb_iop_poll,
-	adb_iop_reset_bus
+	.name         = "ISM IOP",
+	.probe        = adb_iop_probe,
+	.init         = adb_iop_init,
+	.send_request = adb_iop_send_request,
+	.autopoll     = adb_iop_autopoll,
+	.poll         = adb_iop_poll,
+	.reset_bus    = adb_iop_reset_bus
 };
 
 static void adb_iop_end_req(struct adb_request *req, int state)

drivers/macintosh/ans-lcd.c

@@ -201,3 +201,4 @@ anslcd_exit(void)
 
 module_init(anslcd_init);
 module_exit(anslcd_exit);
+MODULE_LICENSE("GPL v2");

drivers/macintosh/macio-adb.c

@@ -70,14 +70,13 @@ static void macio_adb_poll(void);
 static int macio_adb_reset_bus(void);
 
 struct adb_driver macio_adb_driver = {
-	"MACIO",
-	macio_probe,
-	macio_init,
-	macio_send_request,
-	/*macio_write,*/
-	macio_adb_autopoll,
-	macio_adb_poll,
-	macio_adb_reset_bus
+	.name         = "MACIO",
+	.probe        = macio_probe,
+	.init         = macio_init,
+	.send_request = macio_send_request,
+	.autopoll     = macio_adb_autopoll,
+	.poll         = macio_adb_poll,
+	.reset_bus    = macio_adb_reset_bus,
 };
 
 int macio_probe(void)

drivers/macintosh/rack-meter.c

@@ -154,8 +154,8 @@ static void rackmeter_do_pause(struct rackmeter *rm, int pause)
 		DBDMA_DO_STOP(rm->dma_regs);
 		return;
 	}
-	memset(rdma->buf1, 0, ARRAY_SIZE(rdma->buf1));
-	memset(rdma->buf2, 0, ARRAY_SIZE(rdma->buf2));
+	memset(rdma->buf1, 0, sizeof(rdma->buf1));
+	memset(rdma->buf2, 0, sizeof(rdma->buf2));
 
 	rm->dma_buf_v->mark = 0;
 
@@ -397,7 +397,7 @@ static int rackmeter_probe(struct macio_dev* mdev,
 	}
 
 	/* Create and initialize our instance data */
-	rm = kzalloc(sizeof(struct rackmeter), GFP_KERNEL);
+	rm = kzalloc(sizeof(*rm), GFP_KERNEL);
 	if (rm == NULL) {
 		printk(KERN_ERR "rackmeter: failed to allocate memory !\n");
 		rc = -ENOMEM;

drivers/macintosh/via-macii.c

@@ -91,13 +91,13 @@ static void macii_poll(void);
 static int macii_reset_bus(void);
 
 struct adb_driver via_macii_driver = {
-	"Mac II",
-	macii_probe,
-	macii_init,
-	macii_send_request,
-	macii_autopoll,
-	macii_poll,
-	macii_reset_bus
+	.name         = "Mac II",
+	.probe        = macii_probe,
+	.init         = macii_init,
+	.send_request = macii_send_request,
+	.autopoll     = macii_autopoll,
+	.poll         = macii_poll,
+	.reset_bus    = macii_reset_bus,
 };
 
 static enum macii_state {

drivers/macintosh/via-pmu.c

@@ -198,14 +198,14 @@ static const struct file_operations pmu_battery_proc_fops;
 static const struct file_operations pmu_options_proc_fops;
 
 #ifdef CONFIG_ADB
-struct adb_driver via_pmu_driver = {
-	"PMU",
-	pmu_probe,
-	pmu_init,
-	pmu_send_request,
-	pmu_adb_autopoll,
-	pmu_poll_adb,
-	pmu_adb_reset_bus
+const struct adb_driver via_pmu_driver = {
+	.name         = "PMU",
+	.probe        = pmu_probe,
+	.init         = pmu_init,
+	.send_request = pmu_send_request,
+	.autopoll     = pmu_adb_autopoll,
+	.poll         = pmu_poll_adb,
+	.reset_bus    = pmu_adb_reset_bus,
 };
 #endif /* CONFIG_ADB */
 

drivers/macintosh/via-pmu68k.c

@@ -120,13 +120,13 @@ static void pmu_enable_backlight(int on);
 static void pmu_set_brightness(int level);
 
 struct adb_driver via_pmu_driver = {
-	"68K PMU",
-	pmu_probe,
-	pmu_init,
-	pmu_send_request,
-	pmu_autopoll,
-	pmu_poll,
-	pmu_reset_bus
+	.name         = "68K PMU",
+	.probe        = pmu_probe,
+	.init         = pmu_init,
+	.send_request = pmu_send_request,
+	.autopoll     = pmu_autopoll,
+	.poll         = pmu_poll,
+	.reset_bus    = pmu_reset_bus,
 };
 
 /*