]> git.pld-linux.org Git - packages/kernel.git/blobdiff - kernel-small_fixes.patch
- up to 4.19.98
[packages/kernel.git] / kernel-small_fixes.patch
index dea54c0fe6a0d00191f5a1a6eb118099fb0f63f6..2674f5c5fb8db3fc4dc47f5652758fdc3e85f684 100644 (file)
---- linux-2.6.33/scripts/mod/modpost.c~        2010-02-24 19:52:17.000000000 +0100
-+++ linux-2.6.33/scripts/mod/modpost.c 2010-03-07 14:26:47.242168558 +0100
-@@ -15,7 +15,8 @@
- #include <stdio.h>
- #include <ctype.h>
- #include "modpost.h"
--#include "../../include/generated/autoconf.h"
-+// PLD architectures don't use CONFIG_SYMBOL_PREFIX
-+//#include "../../include/generated/autoconf.h"
- #include "../../include/linux/license.h"
- /* Some toolchains use a `_' prefix for all user symbols. */
-
---- linux-3.0/scripts/kconfig/lxdialog/check-lxdialog.sh~      2011-07-22 04:17:23.000000000 +0200
-+++ linux-3.0/scripts/kconfig/lxdialog/check-lxdialog.sh       2011-08-25 21:26:04.799150642 +0200
-@@ -9,6 +9,12 @@
-                       $cc -print-file-name=lib${lib}.${ext} | grep -q /
-                       if [ $? -eq 0 ]; then
-                               echo "-l${lib}"
-+                              for libt in tinfow tinfo ; do
-+                                      $cc -print-file-name=lib${libt}.${ext} | grep -q /
-+                                      if [ $? -eq 0 ]; then
-+                                              echo "-l${libt}"
-+                                      fi
-+                              done
-                               exit
-                       fi
-               done
-
-diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
-index 7a0c800..ec5ebbb 100644
---- a/drivers/net/ethernet/realtek/r8169.c
-+++ b/drivers/net/ethernet/realtek/r8169.c
-@@ -4103,6 +4103,14 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-       /* Get MAC address */
-       for (i = 0; i < ETH_ALEN; i++)
-               dev->dev_addr[i] = RTL_R8(MAC0 + i);
-+
-+      if (!is_valid_ether_addr(dev->dev_addr)) {
-+              /* Report it and use a random ethernet address instead */
-+              netdev_err(dev, "Invalid MAC address: %pM\n", dev->dev_addr);
-+              random_ether_addr(dev->dev_addr);
-+              netdev_info(dev, "Using random MAC address: %pM\n",
-+                          dev->dev_addr);
-+      }
-       memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
-       SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
--- 
-1.7.7.3
-
-From 4acca62e1f1976015ebb718242523e1832716bc7 Mon Sep 17 00:00:00 2001
-From: Takahisa Tanaka <mc74hc00@gmail.com>
-Date: Wed, 14 Nov 2012 20:21:26 +0900
-Subject: [PATCH] sp5100_tco: Add SB8x0 chipset support
-
-The current sp5100_tco driver only supports SP5100/SB7x0 chipset, doesn't
-support SB8x0 chipset, because current sp5100_tco driver doesn't know that the
-offset address for watchdog timer was changed from SB8x0 chipset.
-
-The offset address of SP5100 and SB7x0 chipsets are as follows, quote from the
-AMD SB700/710/750 Register Reference Guide(Page 164) and the AMD SP5100
-Register Reference Guide(Page 166).
-
-  WatchDogTimerControl 69h
-  WatchDogTimerBase0   6Ch
-  WatchDogTimerBase1   6Dh
-  WatchDogTimerBase2   6Eh
-  WatchDogTimerBase3   6Fh
-
-In contrast, the offset address of SB8x0 chipset is as follows, quote from
-AMD SB800-Series Southbridges Register Reference Guide(Page 147).
-
-  WatchDogTimerEn      48h
-  WatchDogTimerConfig  4Ch
-
-So, In the case of SB8x0 chipset, sp5100_tco reads meaningless MMIO
-address(for example, 0xbafe00) from wrong offset address, and the following
-message is logged.
-
-   SP5100 TCO timer: mmio address 0xbafe00 already in use
-
-With this patch, sp5100_tco driver supports SB8x0 chipset, and can avoid
-iomem resource conflict.
-
-Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43176
-To: linux-watchdog@vger.kernel.org
-Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
-
----
-v1 -> v2
- -Fix typo in module description and source code.
- -Fix a bug that can't correctly determine the watchdog fired.
- -Improve syslog messages.
- -Truncate the commit log, because previous commit log is too long.
----
- drivers/watchdog/sp5100_tco.c | 321 +++++++++++++++++++++++++++++++++++-------
- drivers/watchdog/sp5100_tco.h |  46 ++++--
- 2 files changed, 306 insertions(+), 61 deletions(-)
-
-diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
-index ae5e82c..183fcb2 100644
---- a/drivers/watchdog/sp5100_tco.c
-+++ b/drivers/watchdog/sp5100_tco.c
-@@ -13,7 +13,9 @@
-  *    as published by the Free Software Foundation; either version
-  *    2 of the License, or (at your option) any later version.
-  *
-- *    See AMD Publication 43009 "AMD SB700/710/750 Register Reference Guide"
-+ *    See AMD Publication 43009 "AMD SB700/710/750 Register Reference Guide",
-+ *        AMD Publication 45482 "AMD SB800-Series Southbridges Register
-+ *                                                          Reference Guide"
-  */
- /*
-@@ -38,18 +40,24 @@
- #include "sp5100_tco.h"
- /* Module and version information */
--#define TCO_VERSION "0.01"
-+#define TCO_VERSION "0.03"
- #define TCO_MODULE_NAME "SP5100 TCO timer"
- #define TCO_DRIVER_NAME   TCO_MODULE_NAME ", v" TCO_VERSION
- /* internal variables */
- static u32 tcobase_phys;
-+static u32 resbase_phys;
-+static u32 tco_wdt_fired;
- static void __iomem *tcobase;
- static unsigned int pm_iobase;
- static DEFINE_SPINLOCK(tco_lock);     /* Guards the hardware */
- static unsigned long timer_alive;
- static char tco_expect_close;
- static struct pci_dev *sp5100_tco_pci;
-+static struct resource wdt_res = {
-+      .name = "Watchdog Timer",
-+      .flags = IORESOURCE_MEM,
-+};
- /* the watchdog platform device */
- static struct platform_device *sp5100_tco_platform_device;
-@@ -64,9 +72,15 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (default="
- static bool nowayout = WATCHDOG_NOWAYOUT;
- module_param(nowayout, bool, 0);
--MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"
-+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started."
-               " (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-+static unsigned int force_addr;
-+module_param(force_addr, uint, 0);
-+MODULE_PARM_DESC(force_addr, "Force the use of specified MMIO address."
-+              " ONLY USE THIS PARAMETER IF YOU REALLY KNOW"
-+              " WHAT YOU ARE DOING (default=none)");
-+
- /*
-  * Some TCO specific functions
-  */
-@@ -122,6 +136,79 @@ static int tco_timer_set_heartbeat(int t)
-       return 0;
- }
-+static void tco_timer_enable(void)
-+{
-+      int val;
-+
-+      if (sp5100_tco_pci->revision >= 0x40) {
-+              /* For SB800 or later */
-+              /* Set the Watchdog timer resolution to 1 sec */
-+              outb(SB800_PM_WATCHDOG_CONFIG, SB800_IO_PM_INDEX_REG);
-+              val = inb(SB800_IO_PM_DATA_REG);
-+              val |= SB800_PM_WATCHDOG_SECOND_RES;
-+              outb(val, SB800_IO_PM_DATA_REG);
-+
-+              /* Enable watchdog decode bit and watchdog timer */
-+              outb(SB800_PM_WATCHDOG_CONTROL, SB800_IO_PM_INDEX_REG);
-+              val = inb(SB800_IO_PM_DATA_REG);
-+              val |= SB800_PCI_WATCHDOG_DECODE_EN;
-+              val &= ~SB800_PM_WATCHDOG_DISABLE;
-+              outb(val, SB800_IO_PM_DATA_REG);
-+      } else {
-+              /* For SP5100 or SB7x0 */
-+              /* Enable watchdog decode bit */
-+              pci_read_config_dword(sp5100_tco_pci,
-+                                    SP5100_PCI_WATCHDOG_MISC_REG,
-+                                    &val);
-+
-+              val |= SP5100_PCI_WATCHDOG_DECODE_EN;
-+
-+              pci_write_config_dword(sp5100_tco_pci,
-+                                     SP5100_PCI_WATCHDOG_MISC_REG,
-+                                     val);
-+
-+              /* Enable Watchdog timer and set the resolution to 1 sec */
-+              outb(SP5100_PM_WATCHDOG_CONTROL, SP5100_IO_PM_INDEX_REG);
-+              val = inb(SP5100_IO_PM_DATA_REG);
-+              val |= SP5100_PM_WATCHDOG_SECOND_RES;
-+              val &= ~SP5100_PM_WATCHDOG_DISABLE;
-+              outb(val, SP5100_IO_PM_DATA_REG);
-+      }
-+}
-+
-+static void tco_timer_disable(void)
-+{
-+      int val;
-+
-+      if (sp5100_tco_pci->revision >= 0x40) {
-+              /* For SB800 or later */
-+              /* Enable watchdog decode bit and Disable watchdog timer */
-+              outb(SB800_PM_WATCHDOG_CONTROL, SB800_IO_PM_INDEX_REG);
-+              val = inb(SB800_IO_PM_DATA_REG);
-+              val |= SB800_PCI_WATCHDOG_DECODE_EN;
-+              val |= SB800_PM_WATCHDOG_DISABLE;
-+              outb(val, SB800_IO_PM_DATA_REG);
-+      } else {
-+              /* For SP5100 or SB7x0 */
-+              /* Enable watchdog decode bit */
-+              pci_read_config_dword(sp5100_tco_pci,
-+                                    SP5100_PCI_WATCHDOG_MISC_REG,
-+                                    &val);
-+
-+              val |= SP5100_PCI_WATCHDOG_DECODE_EN;
-+
-+              pci_write_config_dword(sp5100_tco_pci,
-+                                     SP5100_PCI_WATCHDOG_MISC_REG,
-+                                     val);
-+
-+              /* Disable Watchdog timer */
-+              outb(SP5100_PM_WATCHDOG_CONTROL, SP5100_IO_PM_INDEX_REG);
-+              val = inb(SP5100_IO_PM_DATA_REG);
-+              val |= SP5100_PM_WATCHDOG_DISABLE;
-+              outb(val, SP5100_IO_PM_DATA_REG);
-+      }
-+}
-+
- /*
-  *    /dev/watchdog handling
-  */
-@@ -270,11 +357,12 @@ MODULE_DEVICE_TABLE(pci, sp5100_tco_pci_tbl);
- /*
-  * Init & exit routines
-  */
--
- static unsigned char __devinit sp5100_tco_setupdevice(void)
- {
-       struct pci_dev *dev = NULL;
-+      const char *dev_name = NULL;
-       u32 val;
-+      u32 index_reg, data_reg, base_addr;
-       /* Match the PCI device */
-       for_each_pci_dev(dev) {
-@@ -287,29 +375,160 @@ static unsigned char __devinit sp5100_tco_setupdevice(void)
-       if (!sp5100_tco_pci)
-               return 0;
-+      pr_info("PCI Revision ID: 0x%x\n", sp5100_tco_pci->revision);
-+
-+      /*
-+       * Determine type of southbridge chipset.
-+       */
-+      if (sp5100_tco_pci->revision >= 0x40) {
-+              dev_name = SB800_DEVNAME;
-+              index_reg = SB800_IO_PM_INDEX_REG;
-+              data_reg = SB800_IO_PM_DATA_REG;
-+              base_addr = SB800_PM_WATCHDOG_BASE;
-+      } else {
-+              dev_name = SP5100_DEVNAME;
-+              index_reg = SP5100_IO_PM_INDEX_REG;
-+              data_reg = SP5100_IO_PM_DATA_REG;
-+              base_addr = SP5100_PM_WATCHDOG_BASE;
-+      }
-+
-       /* Request the IO ports used by this driver */
-       pm_iobase = SP5100_IO_PM_INDEX_REG;
--      if (!request_region(pm_iobase, SP5100_PM_IOPORTS_SIZE, "SP5100 TCO")) {
-+      if (!request_region(pm_iobase, SP5100_PM_IOPORTS_SIZE, dev_name)) {
-               pr_err("I/O address 0x%04x already in use\n", pm_iobase);
-               goto exit;
-       }
--      /* Find the watchdog base address. */
--      outb(SP5100_PM_WATCHDOG_BASE3, SP5100_IO_PM_INDEX_REG);
--      val = inb(SP5100_IO_PM_DATA_REG);
--      outb(SP5100_PM_WATCHDOG_BASE2, SP5100_IO_PM_INDEX_REG);
--      val = val << 8 | inb(SP5100_IO_PM_DATA_REG);
--      outb(SP5100_PM_WATCHDOG_BASE1, SP5100_IO_PM_INDEX_REG);
--      val = val << 8 | inb(SP5100_IO_PM_DATA_REG);
--      outb(SP5100_PM_WATCHDOG_BASE0, SP5100_IO_PM_INDEX_REG);
--      /* Low three bits of BASE0 are reserved. */
--      val = val << 8 | (inb(SP5100_IO_PM_DATA_REG) & 0xf8);
-+      /*
-+       * First, Find the watchdog timer MMIO address from indirect I/O.
-+       */
-+      outb(base_addr+3, index_reg);
-+      val = inb(data_reg);
-+      outb(base_addr+2, index_reg);
-+      val = val << 8 | inb(data_reg);
-+      outb(base_addr+1, index_reg);
-+      val = val << 8 | inb(data_reg);
-+      outb(base_addr+0, index_reg);
-+      /* Low three bits of BASE are reserved */
-+      val = val << 8 | (inb(data_reg) & 0xf8);
-+
-+      pr_debug("Got 0x%04x from indirect I/O\n", val);
-+
-+      /* Check MMIO address conflict */
-+      if (request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE,
-+                                                              dev_name))
-+              goto setup_wdt;
-+      else
-+              pr_debug("MMIO address 0x%04x already in use\n", val);
-+
-+      /*
-+       * Secondly, Find the watchdog timer MMIO address
-+       * from SBResource_MMIO register.
-+       */
-+      if (sp5100_tco_pci->revision >= 0x40) {
-+              /* Read SBResource_MMIO from AcpiMmioEn(PM_Reg: 24h) */
-+              outb(SB800_PM_ACPI_MMIO_EN+3, SB800_IO_PM_INDEX_REG);
-+              val = inb(SB800_IO_PM_DATA_REG);
-+              outb(SB800_PM_ACPI_MMIO_EN+2, SB800_IO_PM_INDEX_REG);
-+              val = val << 8 | inb(SB800_IO_PM_DATA_REG);
-+              outb(SB800_PM_ACPI_MMIO_EN+1, SB800_IO_PM_INDEX_REG);
-+              val = val << 8 | inb(SB800_IO_PM_DATA_REG);
-+              outb(SB800_PM_ACPI_MMIO_EN+0, SB800_IO_PM_INDEX_REG);
-+              val = val << 8 | inb(SB800_IO_PM_DATA_REG);
-+      } else {
-+              /* Read SBResource_MMIO from PCI config(PCI_Reg: 9Ch) */
-+              pci_read_config_dword(sp5100_tco_pci,
-+                                    SP5100_SB_RESOURCE_MMIO_BASE, &val);
-+      }
-+
-+      /* The SBResource_MMIO is enabled and mapped memory space? */
-+      if ((val & (SB800_ACPI_MMIO_DECODE_EN | SB800_ACPI_MMIO_SEL)) ==
-+                                                SB800_ACPI_MMIO_DECODE_EN) {
-+              /* Clear unnecessary the low twelve bits */
-+              val &= ~0xFFF;
-+              /* Add the Watchdog Timer offset to base address. */
-+              val += SB800_PM_WDT_MMIO_OFFSET;
-+              /* Check MMIO address conflict */
-+              if (request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE,
-+                                                                 dev_name)) {
-+                      pr_debug("Got 0x%04x from SBResource_MMIO register\n",
-+                              val);
-+                      goto setup_wdt;
-+              } else
-+                      pr_debug("MMIO address 0x%04x already in use\n", val);
-+      } else
-+              pr_debug("SBResource_MMIO is disabled(0x%04x)\n", val);
-+
-+      /*
-+       * Lastly re-programming the watchdog timer MMIO address,
-+       * This method is a last resort...
-+       *
-+       * Before re-programming, to ensure that the watchdog timer
-+       * is disabled, disable the watchdog timer.
-+       */
-+      tco_timer_disable();
-+
-+      if (force_addr) {
-+              /*
-+               * Force the use of watchdog timer MMIO address, and aligned to
-+               * 8byte boundary.
-+               */
-+              force_addr &= ~0x7;
-+              val = force_addr;
-+
-+              pr_info("Force the use of 0x%04x as MMIO address\n", val);
-+      } else {
-+              /*
-+               * Get empty slot into the resource tree for watchdog timer.
-+               */
-+              if (allocate_resource(&iomem_resource,
-+                                    &wdt_res,
-+                                    SP5100_WDT_MEM_MAP_SIZE,
-+                                    0xf0000000,
-+                                    0xfffffff8,
-+                                    0x8,
-+                                    NULL,
-+                                    NULL)) {
-+                      pr_err("MMIO allocation failed\n");
-+                      goto unreg_region;
-+              }
-+
-+              val = resbase_phys = wdt_res.start;
-+              pr_debug("Got 0x%04x from resource tree\n", val);
-+      }
-+
-+      /* Restore to the low three bits, if chipset is SB8x0(or later) */
-+      if (sp5100_tco_pci->revision >= 0x40) {
-+              u8 reserved_bit;
-+              reserved_bit = inb(base_addr) & 0x7;
-+              val |= (u32)reserved_bit;
-+      }
-+
-+      /* Re-programming the watchdog timer base address */
-+      outb(base_addr+0, index_reg);
-+      /* Low three bits of BASE are reserved */
-+      outb((val >>  0) & 0xf8, data_reg);
-+      outb(base_addr+1, index_reg);
-+      outb((val >>  8) & 0xff, data_reg);
-+      outb(base_addr+2, index_reg);
-+      outb((val >> 16) & 0xff, data_reg);
-+      outb(base_addr+3, index_reg);
-+      outb((val >> 24) & 0xff, data_reg);
-+
-+      /*
-+       * Clear unnecessary the low three bits,
-+       * if chipset is SB8x0(or later)
-+       */
-+      if (sp5100_tco_pci->revision >= 0x40)
-+              val &= ~0x7;
-       if (!request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE,
--                                                              "SP5100 TCO")) {
--              pr_err("mmio address 0x%04x already in use\n", val);
--              goto unreg_region;
-+                                                                 dev_name)) {
-+              pr_err("MMIO address 0x%04x already in use\n", val);
-+              goto unreg_resource;
-       }
-+
-+setup_wdt:
-       tcobase_phys = val;
-       tcobase = ioremap(val, SP5100_WDT_MEM_MAP_SIZE);
-@@ -318,26 +537,18 @@ static unsigned char __devinit sp5100_tco_setupdevice(void)
-               goto unreg_mem_region;
-       }
--      /* Enable watchdog decode bit */
--      pci_read_config_dword(sp5100_tco_pci,
--                            SP5100_PCI_WATCHDOG_MISC_REG,
--                            &val);
--
--      val |= SP5100_PCI_WATCHDOG_DECODE_EN;
-+      pr_info("Using 0x%04x for watchdog MMIO address\n", val);
--      pci_write_config_dword(sp5100_tco_pci,
--                             SP5100_PCI_WATCHDOG_MISC_REG,
--                             val);
-+      /* Setup the watchdog timer */
-+      tco_timer_enable();
--      /* Enable Watchdog timer and set the resolution to 1 sec. */
--      outb(SP5100_PM_WATCHDOG_CONTROL, SP5100_IO_PM_INDEX_REG);
--      val = inb(SP5100_IO_PM_DATA_REG);
--      val |= SP5100_PM_WATCHDOG_SECOND_RES;
--      val &= ~SP5100_PM_WATCHDOG_DISABLE;
--      outb(val, SP5100_IO_PM_DATA_REG);
--
--      /* Check that the watchdog action is set to reset the system. */
-+      /* Check that the watchdog action is set to reset the system */
-       val = readl(SP5100_WDT_CONTROL(tcobase));
-+      /*
-+       * Save WatchDogFired status, because WatchDogFired flag is
-+       * cleared here.
-+       */
-+      tco_wdt_fired = val & SP5100_PM_WATCHDOG_FIRED;
-       val &= ~SP5100_PM_WATCHDOG_ACTION_RESET;
-       writel(val, SP5100_WDT_CONTROL(tcobase));
-@@ -355,6 +566,9 @@ static unsigned char __devinit sp5100_tco_setupdevice(void)
- unreg_mem_region:
-       release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE);
-+unreg_resource:
-+      if (resbase_phys)
-+              release_resource(&wdt_res);
- unreg_region:
-       release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE);
- exit:
-@@ -364,23 +578,18 @@ exit:
- static int __devinit sp5100_tco_init(struct platform_device *dev)
- {
-       int ret;
--      u32 val;
-+      char addr_str[16];
--      /* Check whether or not the hardware watchdog is there. If found, then
-+      /*
-+       * Check whether or not the hardware watchdog is there. If found, then
-        * set it up.
-        */
-       if (!sp5100_tco_setupdevice())
-               return -ENODEV;
-       /* Check to see if last reboot was due to watchdog timeout */
--      pr_info("Watchdog reboot %sdetected\n",
--              readl(SP5100_WDT_CONTROL(tcobase)) & SP5100_PM_WATCHDOG_FIRED ?
--              "" : "not ");
--
--      /* Clear out the old status */
--      val = readl(SP5100_WDT_CONTROL(tcobase));
--      val &= ~SP5100_PM_WATCHDOG_FIRED;
--      writel(val, SP5100_WDT_CONTROL(tcobase));
-+      pr_info("Last reboot was %striggered by watchdog.\n",
-+              tco_wdt_fired ? "" : "not ");
-       /*
-        * Check that the heartbeat value is within it's range.
-@@ -400,14 +609,24 @@ static int __devinit sp5100_tco_init(struct platform_device *dev)
-       clear_bit(0, &timer_alive);
--      pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n",
--              tcobase, heartbeat, nowayout);
-+      /* Show module parameters */
-+      if (force_addr == tcobase_phys)
-+              /* The force_addr is vaild */
-+              sprintf(addr_str, "0x%04x", force_addr);
-+      else
-+              strcpy(addr_str, "none");
-+
-+      pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d, "
-+              "force_addr=%s)\n",
-+              tcobase, heartbeat, nowayout, addr_str);
-       return 0;
- exit:
-       iounmap(tcobase);
-       release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE);
-+      if (resbase_phys)
-+              release_resource(&wdt_res);
-       release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE);
-       return ret;
- }
-@@ -422,6 +641,8 @@ static void __devexit sp5100_tco_cleanup(void)
-       misc_deregister(&sp5100_tco_miscdev);
-       iounmap(tcobase);
-       release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE);
-+      if (resbase_phys)
-+              release_resource(&wdt_res);
-       release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE);
- }
-@@ -451,7 +672,7 @@ static int __init sp5100_tco_init_module(void)
- {
-       int err;
--      pr_info("SP5100 TCO WatchDog Timer Driver v%s\n", TCO_VERSION);
-+      pr_info("SP5100/SB800 TCO WatchDog Timer Driver v%s\n", TCO_VERSION);
-       err = platform_driver_register(&sp5100_tco_driver);
-       if (err)
-@@ -475,13 +696,13 @@ static void __exit sp5100_tco_cleanup_module(void)
- {
-       platform_device_unregister(sp5100_tco_platform_device);
-       platform_driver_unregister(&sp5100_tco_driver);
--      pr_info("SP5100 TCO Watchdog Module Unloaded\n");
-+      pr_info("SP5100/SB800 TCO Watchdog Module Unloaded\n");
- }
- module_init(sp5100_tco_init_module);
- module_exit(sp5100_tco_cleanup_module);
- MODULE_AUTHOR("Priyanka Gupta");
--MODULE_DESCRIPTION("TCO timer driver for SP5100 chipset");
-+MODULE_DESCRIPTION("TCO timer driver for SP5100/SB800 chipset");
- MODULE_LICENSE("GPL");
- MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-diff --git a/drivers/watchdog/sp5100_tco.h b/drivers/watchdog/sp5100_tco.h
-index a5a16cc..71594a0 100644
---- a/drivers/watchdog/sp5100_tco.h
-+++ b/drivers/watchdog/sp5100_tco.h
-@@ -9,33 +9,57 @@
- /*
-  * Some address definitions for the Watchdog
-  */
--
- #define SP5100_WDT_MEM_MAP_SIZE               0x08
- #define SP5100_WDT_CONTROL(base)      ((base) + 0x00) /* Watchdog Control */
- #define SP5100_WDT_COUNT(base)                ((base) + 0x04) /* Watchdog Count */
--#define SP5100_WDT_START_STOP_BIT     1
-+#define SP5100_WDT_START_STOP_BIT     (1 << 0)
- #define SP5100_WDT_TRIGGER_BIT                (1 << 7)
--#define SP5100_PCI_WATCHDOG_MISC_REG  0x41
--#define SP5100_PCI_WATCHDOG_DECODE_EN (1 << 3)
--
- #define SP5100_PM_IOPORTS_SIZE                0x02
--/* These two IO registers are hardcoded and there doesn't seem to be a way to
-+/*
-+ * These two IO registers are hardcoded and there doesn't seem to be a way to
-  * read them from a register.
-  */
-+
-+/*  For SP5100/SB7x0 chipset */
- #define SP5100_IO_PM_INDEX_REG                0xCD6
- #define SP5100_IO_PM_DATA_REG         0xCD7
-+#define SP5100_SB_RESOURCE_MMIO_BASE  0x9C
-+
- #define SP5100_PM_WATCHDOG_CONTROL    0x69
--#define SP5100_PM_WATCHDOG_BASE0      0x6C
--#define SP5100_PM_WATCHDOG_BASE1      0x6D
--#define SP5100_PM_WATCHDOG_BASE2      0x6E
--#define SP5100_PM_WATCHDOG_BASE3      0x6F
-+#define SP5100_PM_WATCHDOG_BASE               0x6C
- #define SP5100_PM_WATCHDOG_FIRED      (1 << 1)
- #define SP5100_PM_WATCHDOG_ACTION_RESET       (1 << 2)
--#define SP5100_PM_WATCHDOG_DISABLE    1
-+#define SP5100_PCI_WATCHDOG_MISC_REG  0x41
-+#define SP5100_PCI_WATCHDOG_DECODE_EN (1 << 3)
-+
-+#define SP5100_PM_WATCHDOG_DISABLE    (1 << 0)
- #define SP5100_PM_WATCHDOG_SECOND_RES (3 << 1)
-+
-+#define SP5100_DEVNAME                        "SP5100 TCO"
-+
-+
-+/*  For SB8x0(or later) chipset */
-+#define SB800_IO_PM_INDEX_REG         0xCD6
-+#define SB800_IO_PM_DATA_REG          0xCD7
-+
-+#define SB800_PM_ACPI_MMIO_EN         0x24
-+#define SB800_PM_WATCHDOG_CONTROL     0x48
-+#define SB800_PM_WATCHDOG_BASE                0x48
-+#define SB800_PM_WATCHDOG_CONFIG      0x4C
-+
-+#define SB800_PCI_WATCHDOG_DECODE_EN  (1 << 0)
-+#define SB800_PM_WATCHDOG_DISABLE     (1 << 2)
-+#define SB800_PM_WATCHDOG_SECOND_RES  (3 << 0)
-+#define SB800_ACPI_MMIO_DECODE_EN     (1 << 0)
-+#define SB800_ACPI_MMIO_SEL           (1 << 2)
-+
-+
-+#define SB800_PM_WDT_MMIO_OFFSET      0xB00
-+
-+#define SB800_DEVNAME                 "SB800 TCO"
--- 
-1.7.11.7
-
-From eba48cd0f05ff7a2f82291feae169c14b61b29af Mon Sep 17 00:00:00 2001
-From: Andrew Cooks <acooks@gmail.com>
-Date: Tue, 13 Nov 2012 12:39:07 +0800
-Subject: [PATCH] PCI: Add GPL license for drivers/pci/ioapic module
-
-Config PCI_IOAPIC turned into a tristate in commit b95a7bd70046, but no
-module license is specified.  This adds the missing module license.
-
-Signed-off-by: Andrew Cooks <acooks@gmail.com>
-Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
-Acked-by: Jan Beulich <jbeulich@suse.com>
----
- drivers/pci/ioapic.c |    2 ++
- 1 files changed, 2 insertions(+), 0 deletions(-)
-
-diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c
-index 205af8d..22436f7 100644
---- a/drivers/pci/ioapic.c
-+++ b/drivers/pci/ioapic.c
-@@ -125,3 +125,5 @@ static void __exit ioapic_exit(void)
- module_init(ioapic_init);
- module_exit(ioapic_exit);
-+
-+MODULE_LICENSE("GPL");
--- 
-1.7.6.5
-
-
-diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
-index 042c1ff..d07c240 100644
---- a/drivers/regulator/core.c
-+++ b/drivers/regulator/core.c
-@@ -1872,7 +1872,14 @@ int regulator_count_voltages(struct regulator *regulator)
- {
-       struct regulator_dev    *rdev = regulator->rdev;
-
--      return rdev->desc->n_voltages ? : -EINVAL;
-+      if (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE) {
-+              if (rdev->desc->n_voltages)
-+                      return rdev->desc->n_voltages;
-+              else
-+                      return -EINVAL;
-+      } else {
-+              return 1;
-+      }
- }
- EXPORT_SYMBOL_GPL(regulator_count_voltages);
-
-diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
-index c7851c0..6f6534e 100644
---- a/drivers/mmc/host/sdhci.c
-+++ b/drivers/mmc/host/sdhci.c
-@@ -2923,7 +2923,7 @@ int sdhci_add_host(struct sdhci_host *host)
-               regulator_enable(host->vmmc);
-
- #ifdef CONFIG_REGULATOR
--      if (host->vmmc) {
-+      if (host->vmmc && regulator_count_voltages(host->vmmc) > 1) {
-               ret = regulator_is_supported_voltage(host->vmmc, 3300000,
-                       3300000);
-               if ((ret <= 0) || (!(caps[0] & SDHCI_CAN_VDD_330)))
+Move setting up operation and write hint to xfs_alloc_ioend, and\r
+then just copy over all needed information from the previous bio\r
+in xfs_chain_bio and stop passing various parameters to it.\r
+\r
+Signed-off-by: Christoph Hellwig <hch@lst.de>\r
+---\r
+ fs/xfs/xfs_aops.c | 35 +++++++++++++++++------------------\r
+ 1 file changed, 17 insertions(+), 18 deletions(-)\r
+\r
+diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c\r
+index a6f0f4761a37..9cceb90e77c5 100644\r
+--- a/fs/xfs/xfs_aops.c\r
++++ b/fs/xfs/xfs_aops.c\r
+@@ -665,7 +665,6 @@ xfs_submit_ioend(\r
\r
+       ioend->io_bio->bi_private = ioend;\r
+       ioend->io_bio->bi_end_io = xfs_end_bio;\r
+-      ioend->io_bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);\r
\r
+       /*\r
+        * If we are failing the IO now, just mark the ioend with an\r
+@@ -679,7 +678,6 @@ xfs_submit_ioend(\r
+               return status;\r
+       }\r
\r
+-      ioend->io_bio->bi_write_hint = ioend->io_inode->i_write_hint;\r
+       submit_bio(ioend->io_bio);\r
+       return 0;\r
+ }\r
+@@ -691,7 +689,8 @@ xfs_alloc_ioend(\r
+       xfs_exntst_t            state,\r
+       xfs_off_t               offset,\r
+       struct block_device     *bdev,\r
+-      sector_t                sector)\r
++      sector_t                sector,\r
++      struct writeback_control *wbc)\r
+ {\r
+       struct xfs_ioend        *ioend;\r
+       struct bio              *bio;\r
+@@ -699,6 +698,8 @@ xfs_alloc_ioend(\r
+       bio = bio_alloc_bioset(GFP_NOFS, BIO_MAX_PAGES, &xfs_ioend_bioset);\r
+       bio_set_dev(bio, bdev);\r
+       bio->bi_iter.bi_sector = sector;\r
++      bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);\r
++      bio->bi_write_hint = inode->i_write_hint;\r
\r
+       ioend = container_of(bio, struct xfs_ioend, io_inline_bio);\r
+       INIT_LIST_HEAD(&ioend->io_list);\r
+@@ -719,24 +720,22 @@ xfs_alloc_ioend(\r
+  * so that the bi_private linkage is set up in the right direction for the\r
+  * traversal in xfs_destroy_ioend().\r
+  */\r
+-static void\r
++static struct bio *\r
+ xfs_chain_bio(\r
+-      struct xfs_ioend        *ioend,\r
+-      struct writeback_control *wbc,\r
+-      struct block_device     *bdev,\r
+-      sector_t                sector)\r
++      struct bio              *prev)\r
+ {\r
+       struct bio *new;\r
\r
+       new = bio_alloc(GFP_NOFS, BIO_MAX_PAGES);\r
+-      bio_set_dev(new, bdev);\r
+-      new->bi_iter.bi_sector = sector;\r
+-      bio_chain(ioend->io_bio, new);\r
+-      bio_get(ioend->io_bio);         /* for xfs_destroy_ioend */\r
+-      ioend->io_bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);\r
+-      ioend->io_bio->bi_write_hint = ioend->io_inode->i_write_hint;\r
+-      submit_bio(ioend->io_bio);\r
+-      ioend->io_bio = new;\r
++      bio_copy_dev(new, prev);\r
++      new->bi_iter.bi_sector = bio_end_sector(prev);\r
++      new->bi_opf = prev->bi_opf;\r
++      new->bi_write_hint = prev->bi_write_hint;\r
++\r
++      bio_chain(prev, new);\r
++      bio_get(prev);          /* for xfs_destroy_ioend */\r
++      submit_bio(prev);\r
++      return new;\r
+ }\r
\r
+ /*\r
+@@ -614,14 +614,14 @@ xfs_add_to_ioend(\r
+               if (wpc->ioend)\r
+                       list_add(&wpc->ioend->io_list, iolist);\r
+               wpc->ioend = xfs_alloc_ioend(inode, wpc->io_type, offset,\r
+-                              bdev, sector);\r
++                              bdev, sector, wbc);\r
+       }\r
\r
+       if (!__bio_try_merge_page(wpc->ioend->io_bio, page, len, poff)) {\r
+               if (iop)\r
+                       atomic_inc(&iop->write_count);\r
+               if (bio_full(wpc->ioend->io_bio))\r
+-                      xfs_chain_bio(wpc->ioend, wbc, bdev, sector);\r
++                      wpc->ioend->io_bio = xfs_chain_bio(wpc->ioend->io_bio);\r
+               __bio_add_page(wpc->ioend->io_bio, page, len, poff);\r
+       }\r
\r
+-- \r
+2.20.1\r
+\r
+\r
+Link every newly allocated writeback bio to cgroup pointed to by the\r
+writeback control structure, and charge every byte written back to it.\r
+\r
+Tested-by: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>\r
+Signed-off-by: Christoph Hellwig <hch@lst.de>\r
+---\r
+ fs/xfs/xfs_aops.c  | 4 +++-\r
+ fs/xfs/xfs_super.c | 2 ++\r
+ 2 files changed, 5 insertions(+), 1 deletion(-)\r
+\r
+diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c\r
+index 9cceb90e77c5..73c291aeae17 100644\r
+--- a/fs/xfs/xfs_aops.c\r
++++ b/fs/xfs/xfs_aops.c\r
+@@ -700,6 +700,7 @@ xfs_alloc_ioend(\r
+       bio->bi_iter.bi_sector = sector;\r
+       bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);\r
+       bio->bi_write_hint = inode->i_write_hint;\r
++      wbc_init_bio(wbc, bio);\r
\r
+       ioend = container_of(bio, struct xfs_ioend, io_inline_bio);\r
+       INIT_LIST_HEAD(&ioend->io_list);\r
+@@ -727,7 +728,7 @@ xfs_chain_bio(\r
+       struct bio *new;\r
\r
+       new = bio_alloc(GFP_NOFS, BIO_MAX_PAGES);\r
+-      bio_copy_dev(new, prev);\r
++      bio_copy_dev(new, prev);/* also copies over blkcg information */\r
+       new->bi_iter.bi_sector = bio_end_sector(prev);\r
+       new->bi_opf = prev->bi_opf;\r
+       new->bi_write_hint = prev->bi_write_hint;\r
+@@ -782,6 +783,7 @@ xfs_add_to_ioend(\r
+       }\r
\r
+       wpc->ioend->io_size += len;\r
++      wbc_account_io(wbc, page, len);\r
+ }\r
\r
+ STATIC void\r
+diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c\r
+index 594c119824cc..ee0df8f611ff 100644\r
+--- a/fs/xfs/xfs_super.c\r
++++ b/fs/xfs/xfs_super.c\r
+@@ -1685,6 +1685,8 @@ xfs_fs_fill_super(\r
+       sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);\r
+       sb->s_max_links = XFS_MAXLINK;\r
+       sb->s_time_gran = 1;\r
++      sb->s_iflags |= SB_I_CGROUPWB;\r
++\r
+       set_posix_acl_flag(sb);\r
\r
+       /* version 5 superblocks support inode version counters. */\r
+-- \r
+2.20.1\r
+\r
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