Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Sat, 18 Feb 2012 23:25:39 +0000 (15:25 -0800)]
3 radeon fixes, I have some exynos fixes to push later but I'll queue
them separately once I've looked them over a bit.

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/kms: fix MSI re-arm on rv370+
  drm/radeon/kms/atom: bios scratch reg handling updates
  drm/radeon/kms: drop lock in return path of radeon_fence_count_emitted.

53 files changed:
arch/powerpc/include/asm/ppc-pci.h
arch/powerpc/include/asm/ptrace.h
arch/powerpc/kernel/irq.c
arch/powerpc/kernel/rtas.c
arch/powerpc/platforms/powernv/pci.c
arch/powerpc/platforms/pseries/eeh.c
arch/powerpc/platforms/pseries/suspend.c
arch/powerpc/platforms/wsp/ics.c
arch/powerpc/platforms/wsp/wsp_pci.c
arch/x86/include/asm/i387.h
arch/x86/include/asm/processor.h
arch/x86/include/asm/thread_info.h
arch/x86/kernel/process_32.c
arch/x86/kernel/process_64.c
arch/x86/kernel/traps.c
arch/x86/kernel/xsave.c
arch/x86/kvm/vmx.c
arch/x86/pci/xen.c
arch/x86/xen/smp.c
crypto/sha512_generic.c
drivers/mmc/card/block.c
drivers/mmc/core/core.c
drivers/mmc/core/host.h
drivers/mmc/core/mmc.c
drivers/mmc/core/sd.c
drivers/mmc/core/sdio.c
drivers/mmc/core/sdio_irq.c
drivers/mmc/host/atmel-mci.c
drivers/mmc/host/dw_mmc.c
drivers/mmc/host/of_mmc_spi.c
drivers/mmc/host/sdhci-of-esdhc.c
drivers/mmc/host/sdhci-pci.c
drivers/mmc/host/sdhci-pltfm.c
drivers/mmc/host/sh_mmcif.c
drivers/mmc/host/tmio_mmc.h
drivers/mmc/host/tmio_mmc_dma.c
drivers/mmc/host/tmio_mmc_pio.c
drivers/pci/xen-pcifront.c
drivers/regulator/max8649.c
drivers/regulator/mc13xxx-regulator-core.c
drivers/xen/cpu_hotplug.c
drivers/xen/xen-pciback/pci_stub.c
drivers/xen/xen-pciback/xenbus.c
drivers/xen/xenbus/xenbus_dev_frontend.c
include/linux/bitops.h
include/linux/mmc/card.h
include/linux/mmc/dw_mmc.h
include/linux/mmc/host.h
sound/pci/hda/patch_realtek.c
sound/pci/hda/patch_sigmatel.c
sound/pci/hda/patch_via.c
sound/pci/intel8x0.c
sound/soc/sh/fsi.c

index 43268f1..6d42297 100644 (file)
@@ -142,6 +142,11 @@ static inline const char *eeh_pci_name(struct pci_dev *pdev)
        return pdev ? pci_name(pdev) : "<null>";
 } 
 
+static inline const char *eeh_driver_name(struct pci_dev *pdev)
+{
+       return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
+}
+
 #endif /* CONFIG_EEH */
 
 #else /* CONFIG_PCI */
index 78a2051..84cc784 100644 (file)
@@ -83,8 +83,18 @@ struct pt_regs {
 
 #ifndef __ASSEMBLY__
 
-#define instruction_pointer(regs) ((regs)->nip)
-#define user_stack_pointer(regs) ((regs)->gpr[1])
+#define GET_IP(regs)           ((regs)->nip)
+#define GET_USP(regs)          ((regs)->gpr[1])
+#define GET_FP(regs)           (0)
+#define SET_FP(regs, val)
+
+#ifdef CONFIG_SMP
+extern unsigned long profile_pc(struct pt_regs *regs);
+#define profile_pc profile_pc
+#endif
+
+#include <asm-generic/ptrace.h>
+
 #define kernel_stack_pointer(regs) ((regs)->gpr[1])
 static inline int is_syscall_success(struct pt_regs *regs)
 {
@@ -99,12 +109,6 @@ static inline long regs_return_value(struct pt_regs *regs)
                return -regs->gpr[3];
 }
 
-#ifdef CONFIG_SMP
-extern unsigned long profile_pc(struct pt_regs *regs);
-#else
-#define profile_pc(regs) instruction_pointer(regs)
-#endif
-
 #ifdef __powerpc64__
 #define user_mode(regs) ((((regs)->msr) >> MSR_PR_LG) & 0x1)
 #else
index 701d4ac..01e2877 100644 (file)
@@ -118,10 +118,14 @@ static inline notrace void set_soft_enabled(unsigned long enable)
 static inline notrace void decrementer_check_overflow(void)
 {
        u64 now = get_tb_or_rtc();
-       u64 *next_tb = &__get_cpu_var(decrementers_next_tb);
+       u64 *next_tb;
+
+       preempt_disable();
+       next_tb = &__get_cpu_var(decrementers_next_tb);
 
        if (now >= *next_tb)
                set_dec(1);
+       preempt_enable();
 }
 
 notrace void arch_local_irq_restore(unsigned long en)
index 517b1d8..9f843cd 100644 (file)
@@ -716,7 +716,6 @@ static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_w
        int cpu;
 
        slb_set_size(SLB_MIN_SIZE);
-       stop_topology_update();
        printk(KERN_DEBUG "calling ibm,suspend-me on cpu %i\n", smp_processor_id());
 
        while (rc == H_MULTI_THREADS_ACTIVE && !atomic_read(&data->done) &&
@@ -732,7 +731,6 @@ static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_w
                rc = atomic_read(&data->error);
 
        atomic_set(&data->error, rc);
-       start_topology_update();
        pSeries_coalesce_init();
 
        if (wake_when_done) {
@@ -846,6 +844,7 @@ int rtas_ibm_suspend_me(struct rtas_args *args)
        atomic_set(&data.error, 0);
        data.token = rtas_token("ibm,suspend-me");
        data.complete = &done;
+       stop_topology_update();
 
        /* Call function on all CPUs.  One of us will make the
         * rtas call
@@ -858,6 +857,8 @@ int rtas_ibm_suspend_me(struct rtas_args *args)
        if (atomic_read(&data.error) != 0)
                printk(KERN_ERR "Error doing global join\n");
 
+       start_topology_update();
+
        return atomic_read(&data.error);
 }
 #else /* CONFIG_PPC_PSERIES */
index a70bc1e..f92b9ef 100644 (file)
@@ -52,32 +52,38 @@ static int pnv_msi_check_device(struct pci_dev* pdev, int nvec, int type)
 
 static unsigned int pnv_get_one_msi(struct pnv_phb *phb)
 {
-       unsigned int id;
+       unsigned long flags;
+       unsigned int id, rc;
+
+       spin_lock_irqsave(&phb->lock, flags);
 
-       spin_lock(&phb->lock);
        id = find_next_zero_bit(phb->msi_map, phb->msi_count, phb->msi_next);
        if (id >= phb->msi_count && phb->msi_next)
                id = find_next_zero_bit(phb->msi_map, phb->msi_count, 0);
        if (id >= phb->msi_count) {
-               spin_unlock(&phb->lock);
-               return 0;
+               rc = 0;
+               goto out;
        }
        __set_bit(id, phb->msi_map);
-       spin_unlock(&phb->lock);
-       return id + phb->msi_base;
+       rc = id + phb->msi_base;
+out:
+       spin_unlock_irqrestore(&phb->lock, flags);
+       return rc;
 }
 
 static void pnv_put_msi(struct pnv_phb *phb, unsigned int hwirq)
 {
+       unsigned long flags;
        unsigned int id;
 
        if (WARN_ON(hwirq < phb->msi_base ||
                    hwirq >= (phb->msi_base + phb->msi_count)))
                return;
        id = hwirq - phb->msi_base;
-       spin_lock(&phb->lock);
+
+       spin_lock_irqsave(&phb->lock, flags);
        __clear_bit(id, phb->msi_map);
-       spin_unlock(&phb->lock);
+       spin_unlock_irqrestore(&phb->lock, flags);
 }
 
 static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
index 5658690..c0b40af 100644 (file)
@@ -551,9 +551,9 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
                        printk (KERN_ERR "EEH: %d reads ignored for recovering device at "
                                "location=%s driver=%s pci addr=%s\n",
                                pdn->eeh_check_count, location,
-                               dev->driver->name, eeh_pci_name(dev));
+                               eeh_driver_name(dev), eeh_pci_name(dev));
                        printk (KERN_ERR "EEH: Might be infinite loop in %s driver\n",
-                               dev->driver->name);
+                               eeh_driver_name(dev));
                        dump_stack();
                }
                goto dn_unlock;
index b84a8b2..47226e0 100644 (file)
@@ -24,6 +24,7 @@
 #include <asm/machdep.h>
 #include <asm/mmu.h>
 #include <asm/rtas.h>
+#include <asm/topology.h>
 
 static u64 stream_id;
 static struct device suspend_dev;
@@ -138,8 +139,11 @@ static ssize_t store_hibernate(struct device *dev,
                        ssleep(1);
        } while (rc == -EAGAIN);
 
-       if (!rc)
+       if (!rc) {
+               stop_topology_update();
                rc = pm_suspend(PM_SUSPEND_MEM);
+               start_topology_update();
+       }
 
        stream_id = 0;
 
index 5768743..97fe82e 100644 (file)
@@ -346,7 +346,7 @@ static int wsp_chip_set_affinity(struct irq_data *d,
         * For the moment only implement delivery to all cpus or one cpu.
         * Get current irq_server for the given irq
         */
-       ret = cache_hwirq_map(ics, d->irq, cpumask);
+       ret = cache_hwirq_map(ics, hw_irq, cpumask);
        if (ret == -1) {
                char cpulist[128];
                cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask);
index e0262cd..d24b3ac 100644 (file)
@@ -468,15 +468,15 @@ static void __init wsp_pcie_configure_hw(struct pci_controller *hose)
 #define DUMP_REG(x) \
        pr_debug("%-30s : 0x%016llx\n", #x, in_be64(hose->cfg_data + x))
 
-#ifdef CONFIG_WSP_DD1_WORKAROUND_BAD_PCIE_CLASS
-       /* WSP DD1 has a bogus class code by default in the PCI-E
-        * root complex's built-in P2P bridge */
+       /*
+        * Some WSP variants  has a bogus class code by default in the PCI-E
+        * root complex's built-in P2P bridge
+        */
        val = in_be64(hose->cfg_data + PCIE_REG_SYS_CFG1);
        pr_debug("PCI-E SYS_CFG1 : 0x%llx\n", val);
        out_be64(hose->cfg_data + PCIE_REG_SYS_CFG1,
                 (val & ~PCIE_REG_SYS_CFG1_CLASS_CODE) | (PCI_CLASS_BRIDGE_PCI << 8));
        pr_debug("PCI-E SYS_CFG1 : 0x%llx\n", in_be64(hose->cfg_data + PCIE_REG_SYS_CFG1));
-#endif /* CONFIG_WSP_DD1_WORKAROUND_BAD_PCIE_CLASS */
 
 #ifdef CONFIG_WSP_DD1_WORKAROUND_DD1_TCE_BUGS
        /* XXX Disable TCE caching, it doesn't work on DD1 */
index a295718..a850b4d 100644 (file)
@@ -29,8 +29,8 @@ extern unsigned int sig_xstate_size;
 extern void fpu_init(void);
 extern void mxcsr_feature_mask_init(void);
 extern int init_fpu(struct task_struct *child);
+extern void __math_state_restore(struct task_struct *);
 extern void math_state_restore(void);
-extern void __math_state_restore(void);
 extern int dump_fpu(struct pt_regs *, struct user_i387_struct *);
 
 extern user_regset_active_fn fpregs_active, xfpregs_active;
@@ -212,19 +212,11 @@ static inline void fpu_fxsave(struct fpu *fpu)
 
 #endif /* CONFIG_X86_64 */
 
-/* We need a safe address that is cheap to find and that is already
-   in L1 during context switch. The best choices are unfortunately
-   different for UP and SMP */
-#ifdef CONFIG_SMP
-#define safe_address (__per_cpu_offset[0])
-#else
-#define safe_address (__get_cpu_var(kernel_cpustat).cpustat[CPUTIME_USER])
-#endif
-
 /*
- * These must be called with preempt disabled
+ * These must be called with preempt disabled. Returns
+ * 'true' if the FPU state is still intact.
  */
-static inline void fpu_save_init(struct fpu *fpu)
+static inline int fpu_save_init(struct fpu *fpu)
 {
        if (use_xsave()) {
                fpu_xsave(fpu);
@@ -233,33 +225,33 @@ static inline void fpu_save_init(struct fpu *fpu)
                 * xsave header may indicate the init state of the FP.
                 */
                if (!(fpu->state->xsave.xsave_hdr.xstate_bv & XSTATE_FP))
-                       return;
+                       return 1;
        } else if (use_fxsr()) {
                fpu_fxsave(fpu);
        } else {
                asm volatile("fnsave %[fx]; fwait"
                             : [fx] "=m" (fpu->state->fsave));
-               return;
+               return 0;
        }
 
-       if (unlikely(fpu->state->fxsave.swd & X87_FSW_ES))
+       /*
+        * If exceptions are pending, we need to clear them so
+        * that we don't randomly get exceptions later.
+        *
+        * FIXME! Is this perhaps only true for the old-style
+        * irq13 case? Maybe we could leave the x87 state
+        * intact otherwise?
+        */
+       if (unlikely(fpu->state->fxsave.swd & X87_FSW_ES)) {
                asm volatile("fnclex");
-
-       /* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
-          is pending.  Clear the x87 state here by setting it to fixed
-          values. safe_address is a random variable that should be in L1 */
-       alternative_input(
-               ASM_NOP8 ASM_NOP2,
-               "emms\n\t"              /* clear stack tags */
-               "fildl %P[addr]",       /* set F?P to defined value */
-               X86_FEATURE_FXSAVE_LEAK,
-               [addr] "m" (safe_address));
+               return 0;
+       }
+       return 1;
 }
 
-static inline void __save_init_fpu(struct task_struct *tsk)
+static inline int __save_init_fpu(struct task_struct *tsk)
 {
-       fpu_save_init(&tsk->thread.fpu);
-       task_thread_info(tsk)->status &= ~TS_USEDFPU;
+       return fpu_save_init(&tsk->thread.fpu);
 }
 
 static inline int fpu_fxrstor_checking(struct fpu *fpu)
@@ -281,29 +273,128 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
 }
 
 /*
- * Signal frame handlers...
+ * Software FPU state helpers. Careful: these need to
+ * be preemption protection *and* they need to be
+ * properly paired with the CR0.TS changes!
  */
-extern int save_i387_xstate(void __user *buf);
-extern int restore_i387_xstate(void __user *buf);
+static inline int __thread_has_fpu(struct task_struct *tsk)
+{
+       return tsk->thread.has_fpu;
+}
 
-static inline void __unlazy_fpu(struct task_struct *tsk)
+/* Must be paired with an 'stts' after! */
+static inline void __thread_clear_has_fpu(struct task_struct *tsk)
 {
-       if (task_thread_info(tsk)->status & TS_USEDFPU) {
-               __save_init_fpu(tsk);
-               stts();
-       } else
-               tsk->fpu_counter = 0;
+       tsk->thread.has_fpu = 0;
+}
+
+/* Must be paired with a 'clts' before! */
+static inline void __thread_set_has_fpu(struct task_struct *tsk)
+{
+       tsk->thread.has_fpu = 1;
+}
+
+/*
+ * Encapsulate the CR0.TS handling together with the
+ * software flag.
+ *
+ * These generally need preemption protection to work,
+ * do try to avoid using these on their own.
+ */
+static inline void __thread_fpu_end(struct task_struct *tsk)
+{
+       __thread_clear_has_fpu(tsk);
+       stts();
+}
+
+static inline void __thread_fpu_begin(struct task_struct *tsk)
+{
+       clts();
+       __thread_set_has_fpu(tsk);
+}
+
+/*
+ * FPU state switching for scheduling.
+ *
+ * This is a two-stage process:
+ *
+ *  - switch_fpu_prepare() saves the old state and
+ *    sets the new state of the CR0.TS bit. This is
+ *    done within the context of the old process.
+ *
+ *  - switch_fpu_finish() restores the new state as
+ *    necessary.
+ */
+typedef struct { int preload; } fpu_switch_t;
+
+/*
+ * FIXME! We could do a totally lazy restore, but we need to
+ * add a per-cpu "this was the task that last touched the FPU
+ * on this CPU" variable, and the task needs to have a "I last
+ * touched the FPU on this CPU" and check them.
+ *
+ * We don't do that yet, so "fpu_lazy_restore()" always returns
+ * false, but some day..
+ */
+#define fpu_lazy_restore(tsk) (0)
+#define fpu_lazy_state_intact(tsk) do { } while (0)
+
+static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct task_struct *new)
+{
+       fpu_switch_t fpu;
+
+       fpu.preload = tsk_used_math(new) && new->fpu_counter > 5;
+       if (__thread_has_fpu(old)) {
+               if (__save_init_fpu(old))
+                       fpu_lazy_state_intact(old);
+               __thread_clear_has_fpu(old);
+               old->fpu_counter++;
+
+               /* Don't change CR0.TS if we just switch! */
+               if (fpu.preload) {
+                       __thread_set_has_fpu(new);
+                       prefetch(new->thread.fpu.state);
+               } else
+                       stts();
+       } else {
+               old->fpu_counter = 0;
+               if (fpu.preload) {
+                       if (fpu_lazy_restore(new))
+                               fpu.preload = 0;
+                       else
+                               prefetch(new->thread.fpu.state);
+                       __thread_fpu_begin(new);
+               }
+       }
+       return fpu;
 }
 
+/*
+ * By the time this gets called, we've already cleared CR0.TS and
+ * given the process the FPU if we are going to preload the FPU
+ * state - all we need to do is to conditionally restore the register
+ * state itself.
+ */
+static inline void switch_fpu_finish(struct task_struct *new, fpu_switch_t fpu)
+{
+       if (fpu.preload)
+               __math_state_restore(new);
+}
+
+/*
+ * Signal frame handlers...
+ */
+extern int save_i387_xstate(void __user *buf);
+extern int restore_i387_xstate(void __user *buf);
+
 static inline void __clear_fpu(struct task_struct *tsk)
 {
-       if (task_thread_info(tsk)->status & TS_USEDFPU) {
+       if (__thread_has_fpu(tsk)) {
                /* Ignore delayed exceptions from user space */
                asm volatile("1: fwait\n"
                             "2:\n"
                             _ASM_EXTABLE(1b, 2b));
-               task_thread_info(tsk)->status &= ~TS_USEDFPU;
-               stts();
+               __thread_fpu_end(tsk);
        }
 }
 
@@ -311,14 +402,14 @@ static inline void __clear_fpu(struct task_struct *tsk)
  * Were we in an interrupt that interrupted kernel mode?
  *
  * We can do a kernel_fpu_begin/end() pair *ONLY* if that
- * pair does nothing at all: TS_USEDFPU must be clear (so
+ * pair does nothing at all: the thread must not have fpu (so
  * that we don't try to save the FPU state), and TS must
  * be set (so that the clts/stts pair does nothing that is
  * visible in the interrupted kernel thread).
  */
 static inline bool interrupted_kernel_fpu_idle(void)
 {
-       return !(current_thread_info()->status & TS_USEDFPU) &&
+       return !__thread_has_fpu(current) &&
                (read_cr0() & X86_CR0_TS);
 }
 
@@ -352,13 +443,15 @@ static inline bool irq_fpu_usable(void)
 
 static inline void kernel_fpu_begin(void)
 {
-       struct thread_info *me = current_thread_info();
+       struct task_struct *me = current;
 
        WARN_ON_ONCE(!irq_fpu_usable());
        preempt_disable();
-       if (me->status & TS_USEDFPU)
-               __save_init_fpu(me->task);
-       else
+       if (__thread_has_fpu(me)) {
+               __save_init_fpu(me);
+               __thread_clear_has_fpu(me);
+               /* We do 'stts()' in kernel_fpu_end() */
+       } else
                clts();
 }
 
@@ -400,21 +493,64 @@ static inline void irq_ts_restore(int TS_state)
 }
 
 /*
+ * The question "does this thread have fpu access?"
+ * is slightly racy, since preemption could come in
+ * and revoke it immediately after the test.
+ *
+ * However, even in that very unlikely scenario,
+ * we can just assume we have FPU access - typically
+ * to save the FP state - we'll just take a #NM
+ * fault and get the FPU access back.
+ *
+ * The actual user_fpu_begin/end() functions
+ * need to be preemption-safe, though.
+ *
+ * NOTE! user_fpu_end() must be used only after you
+ * have saved the FP state, and user_fpu_begin() must
+ * be used only immediately before restoring it.
+ * These functions do not do any save/restore on
+ * their own.
+ */
+static inline int user_has_fpu(void)
+{
+       return __thread_has_fpu(current);
+}
+
+static inline void user_fpu_end(void)
+{
+       preempt_disable();
+       __thread_fpu_end(current);
+       preempt_enable();
+}
+
+static inline void user_fpu_begin(void)
+{
+       preempt_disable();
+       if (!user_has_fpu())
+               __thread_fpu_begin(current);
+       preempt_enable();
+}
+
+/*
  * These disable preemption on their own and are safe
  */
 static inline void save_init_fpu(struct task_struct *tsk)
 {
-       WARN_ON_ONCE(task_thread_info(tsk)->status & TS_USEDFPU);
+       WARN_ON_ONCE(!__thread_has_fpu(tsk));
        preempt_disable();
        __save_init_fpu(tsk);
-       stts();
+       __thread_fpu_end(tsk);
        preempt_enable();
 }
 
 static inline void unlazy_fpu(struct task_struct *tsk)
 {
        preempt_disable();
-       __unlazy_fpu(tsk);
+       if (__thread_has_fpu(tsk)) {
+               __save_init_fpu(tsk);
+               __thread_fpu_end(tsk);
+       } else
+               tsk->fpu_counter = 0;
        preempt_enable();
 }
 
index aa9088c..f7c89e2 100644 (file)
@@ -454,6 +454,7 @@ struct thread_struct {
        unsigned long           trap_no;
        unsigned long           error_code;
        /* floating point and extended processor state */
+       unsigned long           has_fpu;
        struct fpu              fpu;
 #ifdef CONFIG_X86_32
        /* Virtual 86 mode info */
index bc817cd..cfd8144 100644 (file)
@@ -247,8 +247,6 @@ static inline struct thread_info *current_thread_info(void)
  * ever touches our thread-synchronous status, so we don't
  * have to worry about atomic accesses.
  */
-#define TS_USEDFPU             0x0001  /* FPU was used by this task
-                                          this quantum (SMP) */
 #define TS_COMPAT              0x0002  /* 32bit syscall active (64BIT)*/
 #define TS_POLLING             0x0004  /* idle task polling need_resched,
                                           skip sending interrupt */
index 485204f..80bfe1a 100644 (file)
@@ -299,22 +299,11 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
                                 *next = &next_p->thread;
        int cpu = smp_processor_id();
        struct tss_struct *tss = &per_cpu(init_tss, cpu);
-       bool preload_fpu;
+       fpu_switch_t fpu;
 
        /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
 
-       /*
-        * If the task has used fpu the last 5 timeslices, just do a full
-        * restore of the math state immediately to avoid the trap; the
-        * chances of needing FPU soon are obviously high now
-        */
-       preload_fpu = tsk_used_math(next_p) && next_p->fpu_counter > 5;
-
-       __unlazy_fpu(prev_p);
-
-       /* we're going to use this soon, after a few expensive things */
-       if (preload_fpu)
-               prefetch(next->fpu.state);
+       fpu = switch_fpu_prepare(prev_p, next_p);
 
        /*
         * Reload esp0.
@@ -354,11 +343,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
                     task_thread_info(next_p)->flags & _TIF_WORK_CTXSW_NEXT))
                __switch_to_xtra(prev_p, next_p, tss);
 
-       /* If we're going to preload the fpu context, make sure clts
-          is run while we're batching the cpu state updates. */
-       if (preload_fpu)
-               clts();
-
        /*
         * Leave lazy mode, flushing any hypercalls made here.
         * This must be done before restoring TLS segments so
@@ -368,15 +352,14 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
         */
        arch_end_context_switch(next_p);
 
-       if (preload_fpu)
-               __math_state_restore();
-
        /*
         * Restore %gs if needed (which is common)
         */
        if (prev->gs | next->gs)
                lazy_load_gs(next->gs);
 
+       switch_fpu_finish(next_p, fpu);
+
        percpu_write(current_task, next_p);
 
        return prev_p;
index 9b9fe4a..1fd94bc 100644 (file)
@@ -386,18 +386,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
        int cpu = smp_processor_id();
        struct tss_struct *tss = &per_cpu(init_tss, cpu);
        unsigned fsindex, gsindex;
-       bool preload_fpu;
+       fpu_switch_t fpu;
 
-       /*
-        * If the task has used fpu the last 5 timeslices, just do a full
-        * restore of the math state immediately to avoid the trap; the
-        * chances of needing FPU soon are obviously high now
-        */
-       preload_fpu = tsk_used_math(next_p) && next_p->fpu_counter > 5;
-
-       /* we're going to use this soon, after a few expensive things */
-       if (preload_fpu)
-               prefetch(next->fpu.state);
+       fpu = switch_fpu_prepare(prev_p, next_p);
 
        /*
         * Reload esp0, LDT and the page table pointer:
@@ -427,13 +418,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 
        load_TLS(next, cpu);
 
-       /* Must be after DS reload */
-       __unlazy_fpu(prev_p);
-
-       /* Make sure cpu is ready for new context */
-       if (preload_fpu)
-               clts();
-
        /*
         * Leave lazy mode, flushing any hypercalls made here.
         * This must be done before restoring TLS segments so
@@ -474,6 +458,8 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
                wrmsrl(MSR_KERNEL_GS_BASE, next->gs);
        prev->gsindex = gsindex;
 
+       switch_fpu_finish(next_p, fpu);
+
        /*
         * Switch the PDA and FPU contexts.
         */
@@ -492,13 +478,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
                     task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV))
                __switch_to_xtra(prev_p, next_p, tss);
 
-       /*
-        * Preload the FPU context, now that we've determined that the
-        * task is likely to be using it. 
-        */
-       if (preload_fpu)
-               __math_state_restore();
-
        return prev_p;
 }
 
index 8ba27db..77da5b4 100644 (file)
@@ -571,25 +571,34 @@ asmlinkage void __attribute__((weak)) smp_threshold_interrupt(void)
 }
 
 /*
- * __math_state_restore assumes that cr0.TS is already clear and the
- * fpu state is all ready for use.  Used during context switch.
+ * This gets called with the process already owning the
+ * FPU state, and with CR0.TS cleared. It just needs to
+ * restore the FPU register state.
  */
-void __math_state_restore(void)
+void __math_state_restore(struct task_struct *tsk)
 {
-       struct thread_info *thread = current_thread_info();
-       struct task_struct *tsk = thread->task;
+       /* We need a safe address that is cheap to find and that is already
+          in L1. We've just brought in "tsk->thread.has_fpu", so use that */
+#define safe_address (tsk->thread.has_fpu)
+
+       /* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
+          is pending.  Clear the x87 state here by setting it to fixed
+          values. safe_address is a random variable that should be in L1 */
+       alternative_input(
+               ASM_NOP8 ASM_NOP2,
+               "emms\n\t"              /* clear stack tags */
+               "fildl %P[addr]",       /* set F?P to defined value */
+               X86_FEATURE_FXSAVE_LEAK,
+               [addr] "m" (safe_address));
 
        /*
         * Paranoid restore. send a SIGSEGV if we fail to restore the state.
         */
        if (unlikely(restore_fpu_checking(tsk))) {
-               stts();
+               __thread_fpu_end(tsk);
                force_sig(SIGSEGV, tsk);
                return;
        }
-
-       thread->status |= TS_USEDFPU;   /* So we fnsave on switch_to() */
-       tsk->fpu_counter++;
 }
 
 /*
@@ -604,8 +613,7 @@ void __math_state_restore(void)
  */
 void math_state_restore(void)
 {
-       struct thread_info *thread = current_thread_info();
-       struct task_struct *tsk = thread->task;
+       struct task_struct *tsk = current;
 
        if (!tsk_used_math(tsk)) {
                local_irq_enable();
@@ -622,16 +630,16 @@ void math_state_restore(void)
                local_irq_disable();
        }
 
-       clts();                         /* Allow maths ops (or we recurse) */
+       __thread_fpu_begin(tsk);
+       __math_state_restore(tsk);
 
-       __math_state_restore();
+       tsk->fpu_counter++;
 }
 EXPORT_SYMBOL_GPL(math_state_restore);
 
 dotraplinkage void __kprobes
 do_device_not_available(struct pt_regs *regs, long error_code)
 {
-       WARN_ON_ONCE(!user_mode_vm(regs));
 #ifdef CONFIG_MATH_EMULATION
        if (read_cr0() & X86_CR0_EM) {
                struct math_emu_info info = { };
index a391134..7110911 100644 (file)
@@ -47,7 +47,7 @@ void __sanitize_i387_state(struct task_struct *tsk)
        if (!fx)
                return;
 
-       BUG_ON(task_thread_info(tsk)->status & TS_USEDFPU);
+       BUG_ON(__thread_has_fpu(tsk));
 
        xstate_bv = tsk->thread.fpu.state->xsave.xsave_hdr.xstate_bv;
 
@@ -168,7 +168,7 @@ int save_i387_xstate(void __user *buf)
        if (!used_math())
                return 0;
 
-       if (task_thread_info(tsk)->status & TS_USEDFPU) {
+       if (user_has_fpu()) {
                if (use_xsave())
                        err = xsave_user(buf);
                else
@@ -176,8 +176,7 @@ int save_i387_xstate(void __user *buf)
 
                if (err)
                        return err;
-               task_thread_info(tsk)->status &= ~TS_USEDFPU;
-               stts();
+               user_fpu_end();
        } else {
                sanitize_i387_state(tsk);
                if (__copy_to_user(buf, &tsk->thread.fpu.state->fxsave,
@@ -292,10 +291,7 @@ int restore_i387_xstate(void __user *buf)
                        return err;
        }
 
-       if (!(task_thread_info(current)->status & TS_USEDFPU)) {
-               clts();
-               task_thread_info(current)->status |= TS_USEDFPU;
-       }
+       user_fpu_begin();
        if (use_xsave())
                err = restore_user_xstate(buf);
        else
index d29216c..3b4c8d8 100644 (file)
@@ -1457,7 +1457,7 @@ static void __vmx_load_host_state(struct vcpu_vmx *vmx)
 #ifdef CONFIG_X86_64
        wrmsrl(MSR_KERNEL_GS_BASE, vmx->msr_host_kernel_gs_base);
 #endif
-       if (current_thread_info()->status & TS_USEDFPU)
+       if (__thread_has_fpu(current))
                clts();
        load_gdt(&__get_cpu_var(host_gdt));
 }
index 492ade8..d99346e 100644 (file)
@@ -374,7 +374,7 @@ int __init pci_xen_init(void)
 
 int __init pci_xen_hvm_init(void)
 {
-       if (!xen_feature(XENFEAT_hvm_pirqs))
+       if (!xen_have_vector_callback || !xen_feature(XENFEAT_hvm_pirqs))
                return 0;
 
 #ifdef CONFIG_ACPI
index 041d4fe..501d4e0 100644 (file)
@@ -409,6 +409,13 @@ static void __cpuinit xen_play_dead(void) /* used only with HOTPLUG_CPU */
        play_dead_common();
        HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);
        cpu_bringup();
+       /*
+        * Balance out the preempt calls - as we are running in cpu_idle
+        * loop which has been called at bootup from cpu_bringup_and_idle.
+        * The cpucpu_bringup_and_idle called cpu_bringup which made a
+        * preempt_disable() So this preempt_enable will balance it out.
+        */
+       preempt_enable();
 }
 
 #else /* !CONFIG_HOTPLUG_CPU */
index f04af93..107f6f7 100644 (file)
@@ -31,11 +31,6 @@ static inline u64 Maj(u64 x, u64 y, u64 z)
         return (x & y) | (z & (x | y));
 }
 
-static inline u64 RORu64(u64 x, u64 y)
-{
-        return (x >> y) | (x << (64 - y));
-}
-
 static const u64 sha512_K[80] = {
         0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
         0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
@@ -66,10 +61,10 @@ static const u64 sha512_K[80] = {
         0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL,
 };
 
-#define e0(x)       (RORu64(x,28) ^ RORu64(x,34) ^ RORu64(x,39))
-#define e1(x)       (RORu64(x,14) ^ RORu64(x,18) ^ RORu64(x,41))
-#define s0(x)       (RORu64(x, 1) ^ RORu64(x, 8) ^ (x >> 7))
-#define s1(x)       (RORu64(x,19) ^ RORu64(x,61) ^ (x >> 6))
+#define e0(x)       (ror64(x,28) ^ ror64(x,34) ^ ror64(x,39))
+#define e1(x)       (ror64(x,14) ^ ror64(x,18) ^ ror64(x,41))
+#define s0(x)       (ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7))
+#define s1(x)       (ror64(x,19) ^ ror64(x,61) ^ (x >> 6))
 
 static inline void LOAD_OP(int I, u64 *W, const u8 *input)
 {
index 0cad48a..c6a383d 100644 (file)
@@ -1694,6 +1694,7 @@ static int mmc_add_disk(struct mmc_blk_data *md)
 
                md->power_ro_lock.show = power_ro_lock_show;
                md->power_ro_lock.store = power_ro_lock_store;
+               sysfs_attr_init(&md->power_ro_lock.attr);
                md->power_ro_lock.attr.mode = mode;
                md->power_ro_lock.attr.name =
                                        "ro_lock_until_next_power_on";
index f545a3e..690255c 100644 (file)
@@ -290,8 +290,11 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
 static void mmc_pre_req(struct mmc_host *host, struct mmc_request *mrq,
                 bool is_first_req)
 {
-       if (host->ops->pre_req)
+       if (host->ops->pre_req) {
+               mmc_host_clk_hold(host);
                host->ops->pre_req(host, mrq, is_first_req);
+               mmc_host_clk_release(host);
+       }
 }
 
 /**
@@ -306,8 +309,11 @@ static void mmc_pre_req(struct mmc_host *host, struct mmc_request *mrq,
 static void mmc_post_req(struct mmc_host *host, struct mmc_request *mrq,
                         int err)
 {
-       if (host->ops->post_req)
+       if (host->ops->post_req) {
+               mmc_host_clk_hold(host);
                host->ops->post_req(host, mrq, err);
+               mmc_host_clk_release(host);
+       }
 }
 
 /**
@@ -620,7 +626,9 @@ int mmc_host_enable(struct mmc_host *host)
                int err;
 
                host->en_dis_recurs = 1;
+               mmc_host_clk_hold(host);
                err = host->ops->enable(host);
+               mmc_host_clk_release(host);
                host->en_dis_recurs = 0;
 
                if (err) {
@@ -640,7 +648,9 @@ static int mmc_host_do_disable(struct mmc_host *host, int lazy)
                int err;
 
                host->en_dis_recurs = 1;
+               mmc_host_clk_hold(host);
                err = host->ops->disable(host, lazy);
+               mmc_host_clk_release(host);
                host->en_dis_recurs = 0;
 
                if (err < 0) {
@@ -1121,6 +1131,10 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc,
                 * might not allow this operation
                 */
                voltage = regulator_get_voltage(supply);
+
+               if (mmc->caps2 & MMC_CAP2_BROKEN_VOLTAGE)
+                       min_uV = max_uV = voltage;
+
                if (voltage < 0)
                        result = voltage;
                else if (voltage < min_uV || voltage > max_uV)
@@ -1203,8 +1217,11 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, bool cmd11
 
        host->ios.signal_voltage = signal_voltage;
 
-       if (host->ops->start_signal_voltage_switch)
+       if (host->ops->start_signal_voltage_switch) {
+               mmc_host_clk_hold(host);
                err = host->ops->start_signal_voltage_switch(host, &host->ios);
+               mmc_host_clk_release(host);
+       }
 
        return err;
 }
@@ -1239,6 +1256,7 @@ static void mmc_poweroff_notify(struct mmc_host *host)
        int err = 0;
 
        card = host->card;
+       mmc_claim_host(host);
 
        /*
         * Send power notify command only if card
@@ -1269,6 +1287,7 @@ static void mmc_poweroff_notify(struct mmc_host *host)
                /* Set the card state to no notification after the poweroff */
                card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION;
        }
+       mmc_release_host(host);
 }
 
 /*
@@ -1327,12 +1346,28 @@ static void mmc_power_up(struct mmc_host *host)
 
 void mmc_power_off(struct mmc_host *host)
 {
+       int err = 0;
        mmc_host_clk_hold(host);
 
        host->ios.clock = 0;
        host->ios.vdd = 0;
 
-       mmc_poweroff_notify(host);
+       /*
+        * For eMMC 4.5 device send AWAKE command before
+        * POWER_OFF_NOTIFY command, because in sleep state
+        * eMMC 4.5 devices respond to only RESET and AWAKE cmd
+        */
+       if (host->card && mmc_card_is_sleep(host->card) &&
+           host->bus_ops->resume) {
+               err = host->bus_ops->resume(host);
+
+               if (!err)
+                       mmc_poweroff_notify(host);
+               else
+                       pr_warning("%s: error %d during resume "
+                                  "(continue with poweroff sequence)\n",
+                                  mmc_hostname(host), err);
+       }
 
        /*
         * Reset ocr mask to be the highest possible voltage supported for
@@ -2386,12 +2421,6 @@ int mmc_suspend_host(struct mmc_host *host)
                 */
                if (mmc_try_claim_host(host)) {
                        if (host->bus_ops->suspend) {
-                               /*
-                                * For eMMC 4.5 device send notify command
-                                * before sleep, because in sleep state eMMC 4.5
-                                * devices respond to only RESET and AWAKE cmd
-                                */
-                               mmc_poweroff_notify(host);
                                err = host->bus_ops->suspend(host);
                        }
                        mmc_do_release_host(host);
index fb8a5cd..08a7852 100644 (file)
 
 int mmc_register_host_class(void);
 void mmc_unregister_host_class(void);
-
-#ifdef CONFIG_MMC_CLKGATE
-void mmc_host_clk_hold(struct mmc_host *host);
-void mmc_host_clk_release(struct mmc_host *host);
-unsigned int mmc_host_clk_rate(struct mmc_host *host);
-
-#else
-static inline void mmc_host_clk_hold(struct mmc_host *host)
-{
-}
-
-static inline void mmc_host_clk_release(struct mmc_host *host)
-{
-}
-
-static inline unsigned int mmc_host_clk_rate(struct mmc_host *host)
-{
-       return host->ios.clock;
-}
-#endif
-
 void mmc_host_deeper_disable(struct work_struct *work);
 
 #endif
index 59b9ba5..a480663 100644 (file)
@@ -376,7 +376,7 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
        }
 
        card->ext_csd.raw_hc_erase_gap_size =
-               ext_csd[EXT_CSD_PARTITION_ATTRIBUTE];
+               ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
        card->ext_csd.raw_sec_trim_mult =
                ext_csd[EXT_CSD_SEC_TRIM_MULT];
        card->ext_csd.raw_sec_erase_mult =
@@ -551,7 +551,7 @@ static int mmc_compare_ext_csds(struct mmc_card *card, unsigned bus_width)
                goto out;
 
        /* only compare read only fields */
-       err = (!(card->ext_csd.raw_partition_support ==
+       err = !((card->ext_csd.raw_partition_support ==
                        bw_ext_csd[EXT_CSD_PARTITION_SUPPORT]) &&
                (card->ext_csd.raw_erased_mem_count ==
                        bw_ext_csd[EXT_CSD_ERASED_MEM_CONT]) &&
@@ -1006,7 +1006,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
                        err = mmc_select_hs200(card);
                else if (host->caps & MMC_CAP_MMC_HIGHSPEED)
                        err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-                                        EXT_CSD_HS_TIMING, 1, 0);
+                                        EXT_CSD_HS_TIMING, 1,
+                                        card->ext_csd.generic_cmd6_time);
 
                if (err && err != -EBADMSG)
                        goto free_card;
@@ -1116,7 +1117,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
         * Activate wide bus and DDR (if supported).
         */
        if (!mmc_card_hs200(card) &&
-           (card->csd.mmca_vsn >= CSD_SPEC_VER_3) &&
+           (card->csd.mmca_vsn >= CSD_SPEC_VER_4) &&
            (host->caps & (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA))) {
                static unsigned ext_csd_bits[][2] = {
                        { EXT_CSD_BUS_WIDTH_8, EXT_CSD_DDR_BUS_WIDTH_8 },
@@ -1315,11 +1316,13 @@ static int mmc_suspend(struct mmc_host *host)
        BUG_ON(!host->card);
 
        mmc_claim_host(host);
-       if (mmc_card_can_sleep(host))
+       if (mmc_card_can_sleep(host)) {
                err = mmc_card_sleep(host);
-       else if (!mmc_host_is_spi(host))
+               if (!err)
+                       mmc_card_set_sleep(host->card);
+       } else if (!mmc_host_is_spi(host))
                mmc_deselect_cards(host);
-       host->card->state &= ~MMC_STATE_HIGHSPEED;
+       host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
        mmc_release_host(host);
 
        return err;
@@ -1339,7 +1342,11 @@ static int mmc_resume(struct mmc_host *host)
        BUG_ON(!host->card);
 
        mmc_claim_host(host);
-       err = mmc_init_card(host, host->ocr, host->card);
+       if (mmc_card_is_sleep(host->card)) {
+               err = mmc_card_awake(host);
+               mmc_card_clr_sleep(host->card);
+       } else
+               err = mmc_init_card(host, host->ocr, host->card);
        mmc_release_host(host);
 
        return err;
@@ -1349,7 +1356,8 @@ static int mmc_power_restore(struct mmc_host *host)
 {
        int ret;
 
-       host->card->state &= ~MMC_STATE_HIGHSPEED;
+       host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
+       mmc_card_clr_sleep(host->card);
        mmc_claim_host(host);
        ret = mmc_init_card(host, host->ocr, host->card);
        mmc_release_host(host);
index c63ad03..5017f93 100644 (file)
@@ -451,9 +451,11 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status)
         * information and let the hardware specific code
         * return what is possible given the options
         */
+       mmc_host_clk_hold(card->host);
        drive_strength = card->host->ops->select_drive_strength(
                card->sw_caps.uhs_max_dtr,
                host_drv_type, card_drv_type);
+       mmc_host_clk_release(card->host);
 
        err = mmc_sd_switch(card, 1, 2, drive_strength, status);
        if (err)
@@ -660,9 +662,12 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
                goto out;
 
        /* SPI mode doesn't define CMD19 */
-       if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning)
+       if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning) {
+               mmc_host_clk_hold(card->host);
                err = card->host->ops->execute_tuning(card->host,
                                                      MMC_SEND_TUNING_BLOCK);
+               mmc_host_clk_release(card->host);
+       }
 
 out:
        kfree(status);
@@ -850,8 +855,11 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
        if (!reinit) {
                int ro = -1;
 
-               if (host->ops->get_ro)
+               if (host->ops->get_ro) {
+                       mmc_host_clk_hold(card->host);
                        ro = host->ops->get_ro(host);
+                       mmc_host_clk_release(card->host);
+               }
 
                if (ro < 0) {
                        pr_warning("%s: host does not "
@@ -967,8 +975,11 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
                 * Since initialization is now complete, enable preset
                 * value registers for UHS-I cards.
                 */
-               if (host->ops->enable_preset_value)
+               if (host->ops->enable_preset_value) {
+                       mmc_host_clk_hold(card->host);
                        host->ops->enable_preset_value(host, true);
+                       mmc_host_clk_release(card->host);
+               }
        } else {
                /*
                 * Attempt to change to high-speed (if supported)
@@ -1151,8 +1162,11 @@ int mmc_attach_sd(struct mmc_host *host)
                return err;
 
        /* Disable preset value enable if already set since last time */
-       if (host->ops->enable_preset_value)
+       if (host->ops->enable_preset_value) {
+               mmc_host_clk_hold(host);
                host->ops->enable_preset_value(host, false);
+               mmc_host_clk_release(host);
+       }
 
        err = mmc_send_app_op_cond(host, 0, &ocr);
        if (err)
index bd7bacc..12cde6e 100644 (file)
@@ -98,10 +98,11 @@ fail:
        return ret;
 }
 
-static int sdio_read_cccr(struct mmc_card *card)
+static int sdio_read_cccr(struct mmc_card *card, u32 ocr)
 {
        int ret;
        int cccr_vsn;
+       int uhs = ocr & R4_18V_PRESENT;
        unsigned char data;
        unsigned char speed;
 
@@ -149,7 +150,7 @@ static int sdio_read_cccr(struct mmc_card *card)
                card->scr.sda_spec3 = 0;
                card->sw_caps.sd3_bus_mode = 0;
                card->sw_caps.sd3_drv_type = 0;
-               if (cccr_vsn >= SDIO_CCCR_REV_3_00) {
+               if (cccr_vsn >= SDIO_CCCR_REV_3_00 && uhs) {
                        card->scr.sda_spec3 = 1;
                        ret = mmc_io_rw_direct(card, 0, 0,
                                SDIO_CCCR_UHS, 0, &data);
@@ -712,7 +713,7 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
        /*
         * Read the common registers.
         */
-       err = sdio_read_cccr(card);
+       err = sdio_read_cccr(card, ocr);
        if (err)
                goto remove;
 
index 68f81b9..f573e7f 100644 (file)
@@ -146,15 +146,21 @@ static int sdio_irq_thread(void *_host)
                }
 
                set_current_state(TASK_INTERRUPTIBLE);
-               if (host->caps & MMC_CAP_SDIO_IRQ)
+               if (host->caps & MMC_CAP_SDIO_IRQ) {
+                       mmc_host_clk_hold(host);
                        host->ops->enable_sdio_irq(host, 1);
+                       mmc_host_clk_release(host);
+               }
                if (!kthread_should_stop())
                        schedule_timeout(period);
                set_current_state(TASK_RUNNING);
        } while (!kthread_should_stop());
 
-       if (host->caps & MMC_CAP_SDIO_IRQ)
+       if (host->caps & MMC_CAP_SDIO_IRQ) {
+               mmc_host_clk_hold(host);
                host->ops->enable_sdio_irq(host, 0);
+               mmc_host_clk_release(host);
+       }
 
        pr_debug("%s: IRQ thread exiting with code %d\n",
                 mmc_hostname(host), ret);
index fcfe1eb..6985cdb 100644 (file)
@@ -969,11 +969,14 @@ static void atmci_start_request(struct atmel_mci *host,
        host->data_status = 0;
 
        if (host->need_reset) {
+               iflags = atmci_readl(host, ATMCI_IMR);
+               iflags &= (ATMCI_SDIOIRQA | ATMCI_SDIOIRQB);
                atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
                atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIEN);
                atmci_writel(host, ATMCI_MR, host->mode_reg);
                if (host->caps.has_cfg_reg)
                        atmci_writel(host, ATMCI_CFG, host->cfg_reg);
+               atmci_writel(host, ATMCI_IER, iflags);
                host->need_reset = false;
        }
        atmci_writel(host, ATMCI_SDCR, slot->sdc_reg);
index 0e34279..8bec1c3 100644 (file)
@@ -22,7 +22,6 @@
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/scatterlist.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
@@ -502,8 +501,14 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data)
                host->dir_status = DW_MCI_SEND_STATUS;
 
        if (dw_mci_submit_data_dma(host, data)) {
+               int flags = SG_MITER_ATOMIC;
+               if (host->data->flags & MMC_DATA_READ)
+                       flags |= SG_MITER_TO_SG;
+               else
+                       flags |= SG_MITER_FROM_SG;
+
+               sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);
                host->sg = data->sg;
-               host->pio_offset = 0;
                host->part_buf_start = 0;
                host->part_buf_count = 0;
 
@@ -972,6 +977,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
                                 * generates a block interrupt, hence setting
                                 * the scatter-gather pointer to NULL.
                                 */
+                               sg_miter_stop(&host->sg_miter);
                                host->sg = NULL;
                                ctrl = mci_readl(host, CTRL);
                                ctrl |= SDMMC_CTRL_FIFO_RESET;
@@ -1311,54 +1317,44 @@ static void dw_mci_pull_data(struct dw_mci *host, void *buf, int cnt)
 
 static void dw_mci_read_data_pio(struct dw_mci *host)
 {
-       struct scatterlist *sg = host->sg;
-       void *buf = sg_virt(sg);
-       unsigned int offset = host->pio_offset;
+       struct sg_mapping_iter *sg_miter = &host->sg_miter;
+       void *buf;
+       unsigned int offset;
        struct mmc_data *data = host->data;
        int shift = host->data_shift;
        u32 status;
        unsigned int nbytes = 0, len;
+       unsigned int remain, fcnt;
 
        do {
-               len = host->part_buf_count +
-                       (SDMMC_GET_FCNT(mci_readl(host, STATUS)) << shift);
-               if (offset + len <= sg->length) {
+               if (!sg_miter_next(sg_miter))
+                       goto done;
+
+               host->sg = sg_miter->__sg;
+               buf = sg_miter->addr;
+               remain = sg_miter->length;
+               offset = 0;
+
+               do {
+                       fcnt = (SDMMC_GET_FCNT(mci_readl(host, STATUS))
+                                       << shift) + host->part_buf_count;
+                       len = min(remain, fcnt);
+                       if (!len)
+                               break;
                        dw_mci_pull_data(host, (void *)(buf + offset), len);
-
                        offset += len;
                        nbytes += len;
-
-                       if (offset == sg->length) {
-                               flush_dcache_page(sg_page(sg));
-                               host->sg = sg = sg_next(sg);
-                               if (!sg)
-                                       goto done;
-
-                               offset = 0;
-                               buf = sg_virt(sg);
-                       }
-               } else {
-                       unsigned int remaining = sg->length - offset;
-                       dw_mci_pull_data(host, (void *)(buf + offset),
-                                        remaining);
-                       nbytes += remaining;
-
-                       flush_dcache_page(sg_page(sg));
-                       host->sg = sg = sg_next(sg);
-                       if (!sg)
-                               goto done;
-
-                       offset = len - remaining;
-                       buf = sg_virt(sg);
-                       dw_mci_pull_data(host, buf, offset);
-                       nbytes += offset;
-               }
+                       remain -= len;
+               } while (remain);
+               sg_miter->consumed = offset;
 
                status = mci_readl(host, MINTSTS);
                mci_writel(host, RINTSTS, SDMMC_INT_RXDR);
                if (status & DW_MCI_DATA_ERROR_FLAGS) {
                        host->data_status = status;
                        data->bytes_xfered += nbytes;
+                       sg_miter_stop(sg_miter);
+                       host->sg = NULL;
                        smp_wmb();
 
                        set_bit(EVENT_DATA_ERROR, &host->pending_events);
@@ -1367,65 +1363,66 @@ static void dw_mci_read_data_pio(struct dw_mci *host)
                        return;
                }
        } while (status & SDMMC_INT_RXDR); /*if the RXDR is ready read again*/
-       host->pio_offset = offset;
        data->bytes_xfered += nbytes;
+
+       if (!remain) {
+               if (!sg_miter_next(sg_miter))
+                       goto done;
+               sg_miter->consumed = 0;
+       }
+       sg_miter_stop(sg_miter);
        return;
 
 done:
        data->bytes_xfered += nbytes;
+       sg_miter_stop(sg_miter);
+       host->sg = NULL;
        smp_wmb();
        set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
 }
 
 static void dw_mci_write_data_pio(struct dw_mci *host)
 {
-       struct scatterlist *sg = host->sg;
-       void *buf = sg_virt(sg);
-       unsigned int offset = host->pio_offset;
+       struct sg_mapping_iter *sg_miter = &host->sg_miter;
+       void *buf;
+       unsigned int offset;
        struct mmc_data *data = host->data;
        int shift = host->data_shift;
        u32 status;
        unsigned int nbytes = 0, len;
+       unsigned int fifo_depth = host->fifo_depth;
+       unsigned int remain, fcnt;
 
        do {
-               len = ((host->fifo_depth -
-                       SDMMC_GET_FCNT(mci_readl(host, STATUS))) << shift)
-                       - host->part_buf_count;
-               if (offset + len <= sg->length) {
+               if (!sg_miter_next(sg_miter))
+                       goto done;
+
+               host->sg = sg_miter->__sg;
+               buf = sg_miter->addr;
+               remain = sg_miter->length;
+               offset = 0;
+
+               do {
+                       fcnt = ((fifo_depth -
+                                SDMMC_GET_FCNT(mci_readl(host, STATUS)))
+                                       << shift) - host->part_buf_count;
+                       len = min(remain, fcnt);
+                       if (!len)
+                               break;
                        host->push_data(host, (void *)(buf + offset), len);
-
                        offset += len;
                        nbytes += len;
-                       if (offset == sg->length) {
-                               host->sg = sg = sg_next(sg);
-                               if (!sg)
-                                       goto done;
-
-                               offset = 0;
-                               buf = sg_virt(sg);
-                       }
-               } else {
-                       unsigned int remaining = sg->length - offset;
-
-                       host->push_data(host, (void *)(buf + offset),
-                                       remaining);
-                       nbytes += remaining;
-
-                       host->sg = sg = sg_next(sg);
-                       if (!sg)
-                               goto done;
-
-                       offset = len - remaining;
-                       buf = sg_virt(sg);
-                       host->push_data(host, (void *)buf, offset);
-                       nbytes += offset;
-               }
+                       remain -= len;
+               } while (remain);
+               sg_miter->consumed = offset;
 
                status = mci_readl(host, MINTSTS);
                mci_writel(host, RINTSTS, SDMMC_INT_TXDR);
                if (status & DW_MCI_DATA_ERROR_FLAGS) {
                        host->data_status = status;
                        data->bytes_xfered += nbytes;
+                       sg_miter_stop(sg_miter);
+                       host->sg = NULL;
 
                        smp_wmb();
 
@@ -1435,12 +1432,20 @@ static void dw_mci_write_data_pio(struct dw_mci *host)
                        return;
                }
        } while (status & SDMMC_INT_TXDR); /* if TXDR write again */
-       host->pio_offset = offset;
        data->bytes_xfered += nbytes;
+
+       if (!remain) {
+               if (!sg_miter_next(sg_miter))
+                       goto done;
+               sg_miter->consumed = 0;
+       }
+       sg_miter_stop(sg_miter);
        return;
 
 done:
        data->bytes_xfered += nbytes;
+       sg_miter_stop(sg_miter);
+       host->sg = NULL;
        smp_wmb();
        set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
 }
@@ -1643,6 +1648,7 @@ static void dw_mci_work_routine_card(struct work_struct *work)
                                 * block interrupt, hence setting the
                                 * scatter-gather pointer to NULL.
                                 */
+                               sg_miter_stop(&host->sg_miter);
                                host->sg = NULL;
 
                                ctrl = mci_readl(host, CTRL);
index ab66f24..1534b58 100644 (file)
@@ -113,8 +113,8 @@ struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi)
                const int j = i * 2;
                u32 mask;
 
-               mask = mmc_vddrange_to_ocrmask(voltage_ranges[j],
-                                              voltage_ranges[j + 1]);
+               mask = mmc_vddrange_to_ocrmask(be32_to_cpu(voltage_ranges[j]),
+                                              be32_to_cpu(voltage_ranges[j + 1]));
                if (!mask) {
                        ret = -EINVAL;
                        dev_err(dev, "OF: voltage-range #%d is invalid\n", i);
index ff4adc0..5d876ff 100644 (file)
@@ -38,6 +38,23 @@ static u8 esdhc_readb(struct sdhci_host *host, int reg)
        int base = reg & ~0x3;
        int shift = (reg & 0x3) * 8;
        u8 ret = (in_be32(host->ioaddr + base) >> shift) & 0xff;
+
+       /*
+        * "DMA select" locates at offset 0x28 in SD specification, but on
+        * P5020 or P3041, it locates at 0x29.
+        */
+       if (reg == SDHCI_HOST_CONTROL) {
+               u32 dma_bits;
+
+               dma_bits = in_be32(host->ioaddr + reg);
+               /* DMA select is 22,23 bits in Protocol Control Register */
+               dma_bits = (dma_bits >> 5) & SDHCI_CTRL_DMA_MASK;
+
+               /* fixup the result */
+               ret &= ~SDHCI_CTRL_DMA_MASK;
+               ret |= dma_bits;
+       }
+
        return ret;
 }
 
@@ -56,6 +73,21 @@ static void esdhc_writew(struct sdhci_host *host, u16 val, int reg)
 
 static void esdhc_writeb(struct sdhci_host *host, u8 val, int reg)
 {
+       /*
+        * "DMA select" location is offset 0x28 in SD specification, but on
+        * P5020 or P3041, it's located at 0x29.
+        */
+       if (reg == SDHCI_HOST_CONTROL) {
+               u32 dma_bits;
+
+               /* DMA select is 22,23 bits in Protocol Control Register */
+               dma_bits = (val & SDHCI_CTRL_DMA_MASK) << 5;
+               clrsetbits_be32(host->ioaddr + reg , SDHCI_CTRL_DMA_MASK << 5,
+                       dma_bits);
+               val &= ~SDHCI_CTRL_DMA_MASK;
+               val |= in_be32(host->ioaddr + reg) & SDHCI_CTRL_DMA_MASK;
+       }
+
        /* Prevent SDHCI core from writing reserved bits (e.g. HISPD). */
        if (reg == SDHCI_HOST_CONTROL)
                val &= ~ESDHC_HOST_CONTROL_RES;
index 7165e6a..6ebdc40 100644 (file)
@@ -250,7 +250,7 @@ static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
 
 static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
 {
-       slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD;
+       slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE;
        return 0;
 }
 
index 03970bc..c5c2a48 100644 (file)
@@ -2,7 +2,7 @@
  * sdhci-pltfm.c Support for SDHCI platform devices
  * Copyright (c) 2009 Intel Corporation
  *
- * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ * Copyright (c) 2007, 2011 Freescale Semiconductor, Inc.
  * Copyright (c) 2009 MontaVista Software, Inc.
  *
  * Authors: Xiaobo Xie <X.Xie@freescale.com>
@@ -71,6 +71,14 @@ void sdhci_get_of_property(struct platform_device *pdev)
                if (sdhci_of_wp_inverted(np))
                        host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
 
+               if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
+                       host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
+
+               if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||
+                   of_device_is_compatible(np, "fsl,p1010-esdhc") ||
+                   of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
+                       host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
+
                clk = of_get_property(np, "clock-frequency", &size);
                if (clk && size == sizeof(*clk) && *clk)
                        pltfm_host->clock = be32_to_cpup(clk);
index f5d8b53..352d479 100644 (file)
@@ -1327,7 +1327,7 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
        if (ret < 0)
                goto clean_up2;
 
-       mmc_add_host(mmc);
+       INIT_DELAYED_WORK(&host->timeout_work, mmcif_timeout_work);
 
        sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
 
@@ -1338,22 +1338,24 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
        }
        ret = request_threaded_irq(irq[1], sh_mmcif_intr, sh_mmcif_irqt, 0, "sh_mmc:int", host);
        if (ret) {
-               free_irq(irq[0], host);
                dev_err(&pdev->dev, "request_irq error (sh_mmc:int)\n");
-               goto clean_up3;
+               goto clean_up4;
        }
 
-       INIT_DELAYED_WORK(&host->timeout_work, mmcif_timeout_work);
-
-       mmc_detect_change(host->mmc, 0);
+       ret = mmc_add_host(mmc);
+       if (ret < 0)
+               goto clean_up5;
 
        dev_info(&pdev->dev, "driver version %s\n", DRIVER_VERSION);
        dev_dbg(&pdev->dev, "chip ver H'%04x\n",
                sh_mmcif_readl(host->addr, MMCIF_CE_VERSION) & 0x0000ffff);
        return ret;
 
+clean_up5:
+       free_irq(irq[1], host);
+clean_up4:
+       free_irq(irq[0], host);
 clean_up3:
-       mmc_remove_host(mmc);
        pm_runtime_suspend(&pdev->dev);
 clean_up2:
        pm_runtime_disable(&pdev->dev);
index a95e6d9..f96c536 100644 (file)
@@ -20,8 +20,8 @@
 #include <linux/mmc/tmio.h>
 #include <linux/mutex.h>
 #include <linux/pagemap.h>
-#include <linux/spinlock.h>
 #include <linux/scatterlist.h>
+#include <linux/spinlock.h>
 
 /* Definitions for values the CTRL_SDIO_STATUS register can take. */
 #define TMIO_SDIO_STAT_IOIRQ   0x0001
@@ -120,6 +120,7 @@ void tmio_mmc_start_dma(struct tmio_mmc_host *host, struct mmc_data *data);
 void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable);
 void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata);
 void tmio_mmc_release_dma(struct tmio_mmc_host *host);
+void tmio_mmc_abort_dma(struct tmio_mmc_host *host);
 #else
 static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host,
                               struct mmc_data *data)
@@ -140,6 +141,10 @@ static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host,
 static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host)
 {
 }
+
+static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
+{
+}
 #endif
 
 #ifdef CONFIG_PM
index 7a6e6cc..8253ec1 100644 (file)
@@ -34,6 +34,18 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
 #endif
 }
 
+void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
+{
+       tmio_mmc_enable_dma(host, false);
+
+       if (host->chan_rx)
+               dmaengine_terminate_all(host->chan_rx);
+       if (host->chan_tx)
+               dmaengine_terminate_all(host->chan_tx);
+
+       tmio_mmc_enable_dma(host, true);
+}
+
 static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
 {
        struct scatterlist *sg = host->sg_ptr, *sg_tmp;
index abad01b..5f9ad74 100644 (file)
@@ -41,8 +41,8 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/scatterlist.h>
-#include <linux/workqueue.h>
 #include <linux/spinlock.h>
+#include <linux/workqueue.h>
 
 #include "tmio_mmc.h"
 
@@ -246,6 +246,7 @@ static void tmio_mmc_reset_work(struct work_struct *work)
        /* Ready for new calls */
        host->mrq = NULL;
 
+       tmio_mmc_abort_dma(host);
        mmc_request_done(host->mmc, mrq);
 }
 
@@ -272,6 +273,9 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
        host->mrq = NULL;
        spin_unlock_irqrestore(&host->lock, flags);
 
+       if (mrq->cmd->error || (mrq->data && mrq->data->error))
+               tmio_mmc_abort_dma(host);
+
        mmc_request_done(host->mmc, mrq);
 }
 
index 7cf3d2f..1620088 100644 (file)
@@ -189,7 +189,7 @@ static int pcifront_bus_read(struct pci_bus *bus, unsigned int devfn,
 
        if (verbose_request)
                dev_info(&pdev->xdev->dev,
-                        "read dev=%04x:%02x:%02x.%01x - offset %x size %d\n",
+                        "read dev=%04x:%02x:%02x.%d - offset %x size %d\n",
                         pci_domain_nr(bus), bus->number, PCI_SLOT(devfn),
                         PCI_FUNC(devfn), where, size);
 
@@ -228,7 +228,7 @@ static int pcifront_bus_write(struct pci_bus *bus, unsigned int devfn,
 
        if (verbose_request)
                dev_info(&pdev->xdev->dev,
-                        "write dev=%04x:%02x:%02x.%01x - "
+                        "write dev=%04x:%02x:%02x.%d - "
                         "offset %x size %d val %x\n",
                         pci_domain_nr(bus), bus->number,
                         PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val);
@@ -432,7 +432,7 @@ static int __devinit pcifront_scan_bus(struct pcifront_device *pdev,
                d = pci_scan_single_device(b, devfn);
                if (d)
                        dev_info(&pdev->xdev->dev, "New device on "
-                                "%04x:%02x:%02x.%02x found.\n", domain, bus,
+                                "%04x:%02x:%02x.%d found.\n", domain, bus,
                                 PCI_SLOT(devfn), PCI_FUNC(devfn));
        }
 
@@ -1041,7 +1041,7 @@ static int pcifront_detach_devices(struct pcifront_device *pdev)
                pci_dev = pci_get_slot(pci_bus, PCI_DEVFN(slot, func));
                if (!pci_dev) {
                        dev_dbg(&pdev->xdev->dev,
-                               "Cannot get PCI device %04x:%02x:%02x.%02x\n",
+                               "Cannot get PCI device %04x:%02x:%02x.%d\n",
                                domain, bus, slot, func);
                        continue;
                }
@@ -1049,7 +1049,7 @@ static int pcifront_detach_devices(struct pcifront_device *pdev)
                pci_dev_put(pci_dev);
 
                dev_dbg(&pdev->xdev->dev,
-                       "PCI device %04x:%02x:%02x.%02x removed.\n",
+                       "PCI device %04x:%02x:%02x.%d removed.\n",
                        domain, bus, slot, func);
        }
 
index b06a239..d0e1180 100644 (file)
@@ -150,7 +150,7 @@ static int max8649_enable_time(struct regulator_dev *rdev)
        if (ret != 0)
                return ret;
        val &= MAX8649_VOL_MASK;
-       voltage = max8649_list_voltage(rdev, (unsigned char)ret); /* uV */
+       voltage = max8649_list_voltage(rdev, (unsigned char)val); /* uV */
 
        /* get rate */
        ret = regmap_read(info->regmap, MAX8649_RAMP, &val);
index 80ecafe..62dcd0a 100644 (file)
@@ -254,6 +254,7 @@ int __devinit mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
 
        return num;
 }
+EXPORT_SYMBOL_GPL(mc13xxx_get_num_regulators_dt);
 
 struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
        struct platform_device *pdev, struct mc13xxx_regulator *regulators,
@@ -291,6 +292,7 @@ struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
 
        return data;
 }
+EXPORT_SYMBOL_GPL(mc13xxx_parse_regulators_dt);
 #endif
 
 MODULE_LICENSE("GPL v2");
index 14e2d99..4dcfced 100644 (file)
@@ -30,7 +30,8 @@ static int vcpu_online(unsigned int cpu)
        sprintf(dir, "cpu/%u", cpu);
        err = xenbus_scanf(XBT_NIL, dir, "availability", "%s", state);
        if (err != 1) {
-               printk(KERN_ERR "XENBUS: Unable to read cpu state\n");
+               if (!xen_initial_domain())
+                       printk(KERN_ERR "XENBUS: Unable to read cpu state\n");
                return err;
        }
 
index 7944a17..19834d1 100644 (file)
@@ -884,7 +884,7 @@ static inline int str_to_quirk(const char *buf, int *domain, int *bus, int
        int err;
 
        err =
-           sscanf(buf, " %04x:%02x:%02x.%1x-%08x:%1x:%08x", domain, bus, slot,
+           sscanf(buf, " %04x:%02x:%02x.%d-%08x:%1x:%08x", domain, bus, slot,
                   func, reg, size, mask);
        if (err == 7)
                return 0;
@@ -904,7 +904,7 @@ static int pcistub_device_id_add(int domain, int bus, int slot, int func)
        pci_dev_id->bus = bus;
        pci_dev_id->devfn = PCI_DEVFN(slot, func);
 
-       pr_debug(DRV_NAME ": wants to seize %04x:%02x:%02x.%01x\n",
+       pr_debug(DRV_NAME ": wants to seize %04x:%02x:%02x.%d\n",
                 domain, bus, slot, func);
 
        spin_lock_irqsave(&device_ids_lock, flags);
@@ -934,7 +934,7 @@ static int pcistub_device_id_remove(int domain, int bus, int slot, int func)
 
                        err = 0;
 
-                       pr_debug(DRV_NAME ": removed %04x:%02x:%02x.%01x from "
+                       pr_debug(DRV_NAME ": removed %04x:%02x:%02x.%d from "
                                 "seize list\n", domain, bus, slot, func);
                }
        }
@@ -1029,7 +1029,7 @@ static ssize_t pcistub_slot_show(struct device_driver *drv, char *buf)
                        break;
 
                count += scnprintf(buf + count, PAGE_SIZE - count,
-                                  "%04x:%02x:%02x.%01x\n",
+                                  "%04x:%02x:%02x.%d\n",
                                   pci_dev_id->domain, pci_dev_id->bus,
                                   PCI_SLOT(pci_dev_id->devfn),
                                   PCI_FUNC(pci_dev_id->devfn));
index d5dcf8d..64b11f9 100644 (file)
@@ -206,6 +206,7 @@ static int xen_pcibk_publish_pci_dev(struct xen_pcibk_device *pdev,
                goto out;
        }
 
+       /* Note: The PV protocol uses %02x, don't change it */
        err = xenbus_printf(XBT_NIL, pdev->xdev->nodename, str,
                            "%04x:%02x:%02x.%02x", domain, bus,
                            PCI_SLOT(devfn), PCI_FUNC(devfn));
@@ -229,7 +230,7 @@ static int xen_pcibk_export_device(struct xen_pcibk_device *pdev,
                err = -EINVAL;
                xenbus_dev_fatal(pdev->xdev, err,
                                 "Couldn't locate PCI device "
-                                "(%04x:%02x:%02x.%01x)! "
+                                "(%04x:%02x:%02x.%d)! "
                                 "perhaps already in-use?",
                                 domain, bus, slot, func);
                goto out;
@@ -274,7 +275,7 @@ static int xen_pcibk_remove_device(struct xen_pcibk_device *pdev,
        if (!dev) {
                err = -EINVAL;
                dev_dbg(&pdev->xdev->dev, "Couldn't locate PCI device "
-                       "(%04x:%02x:%02x.%01x)! not owned by this domain\n",
+                       "(%04x:%02x:%02x.%d)! not owned by this domain\n",
                        domain, bus, slot, func);
                goto out;
        }
index 527dc2a..89f7625 100644 (file)
@@ -369,6 +369,10 @@ static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u)
                goto out;
        }
        token++;
+       if (memchr(token, 0, u->u.msg.len - (token - path)) == NULL) {
+               rc = -EILSEQ;
+               goto out;
+       }
 
        if (msg_type == XS_WATCH) {
                watch = alloc_watch_adapter(path, token);
index 3c1063a..94300fe 100644 (file)
@@ -56,6 +56,26 @@ static inline unsigned long hweight_long(unsigned long w)
 }
 
 /**
+ * rol64 - rotate a 64-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u64 rol64(__u64 word, unsigned int shift)
+{
+       return (word << shift) | (word >> (64 - shift));
+}
+
+/**
+ * ror64 - rotate a 64-bit value right
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u64 ror64(__u64 word, unsigned int shift)
+{
+       return (word >> shift) | (word << (64 - shift));
+}
+
+/**
  * rol32 - rotate a 32-bit value left
  * @word: value to rotate
  * @shift: bits to roll
index 9f22ba5..19a41d1 100644 (file)
@@ -217,6 +217,7 @@ struct mmc_card {
 #define MMC_CARD_SDXC          (1<<6)          /* card is SDXC */
 #define MMC_CARD_REMOVED       (1<<7)          /* card has been removed */
 #define MMC_STATE_HIGHSPEED_200        (1<<8)          /* card is in HS200 mode */
+#define MMC_STATE_SLEEP                (1<<9)          /* card is in sleep state */
        unsigned int            quirks;         /* card quirks */
 #define MMC_QUIRK_LENIENT_FN0  (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
 #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)   /* use func->cur_blksize */
@@ -382,6 +383,7 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 #define mmc_sd_card_uhs(c)     ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
 #define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
 #define mmc_card_removed(c)    ((c) && ((c)->state & MMC_CARD_REMOVED))
+#define mmc_card_is_sleep(c)   ((c)->state & MMC_STATE_SLEEP)
 
 #define mmc_card_set_present(c)        ((c)->state |= MMC_STATE_PRESENT)
 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
@@ -393,7 +395,9 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 #define mmc_sd_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
 #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
 #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
+#define mmc_card_set_sleep(c)  ((c)->state |= MMC_STATE_SLEEP)
 
+#define mmc_card_clr_sleep(c)  ((c)->state &= ~MMC_STATE_SLEEP)
 /*
  * Quirk add/remove for MMC products.
  */
index e8779c6..aae5d1f 100644 (file)
@@ -14,6 +14,8 @@
 #ifndef LINUX_MMC_DW_MMC_H
 #define LINUX_MMC_DW_MMC_H
 
+#include <linux/scatterlist.h>
+
 #define MAX_MCI_SLOTS  2
 
 enum dw_mci_state {
@@ -40,7 +42,7 @@ struct mmc_data;
  * @lock: Spinlock protecting the queue and associated data.
  * @regs: Pointer to MMIO registers.
  * @sg: Scatterlist entry currently being processed by PIO code, if any.
- * @pio_offset: Offset into the current scatterlist entry.
+ * @sg_miter: PIO mapping scatterlist iterator.
  * @cur_slot: The slot which is currently using the controller.
  * @mrq: The request currently being processed on @cur_slot,
  *     or NULL if the controller is idle.
@@ -115,7 +117,7 @@ struct dw_mci {
        void __iomem            *regs;
 
        struct scatterlist      *sg;
-       unsigned int            pio_offset;
+       struct sg_mapping_iter  sg_miter;
 
        struct dw_mci_slot      *cur_slot;
        struct mmc_request      *mrq;
index 0beba1e..ee2b036 100644 (file)
@@ -257,6 +257,7 @@ struct mmc_host {
 #define MMC_CAP2_HS200_1_2V_SDR        (1 << 6)        /* can support */
 #define MMC_CAP2_HS200         (MMC_CAP2_HS200_1_8V_SDR | \
                                 MMC_CAP2_HS200_1_2V_SDR)
+#define MMC_CAP2_BROKEN_VOLTAGE        (1 << 7)        /* Use the broken voltage */
 
        mmc_pm_flag_t           pm_caps;        /* supported pm features */
        unsigned int        power_notify_type;
@@ -444,4 +445,23 @@ static inline int mmc_boot_partition_access(struct mmc_host *host)
        return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC);
 }
 
+#ifdef CONFIG_MMC_CLKGATE
+void mmc_host_clk_hold(struct mmc_host *host);
+void mmc_host_clk_release(struct mmc_host *host);
+unsigned int mmc_host_clk_rate(struct mmc_host *host);
+
+#else
+static inline void mmc_host_clk_hold(struct mmc_host *host)
+{
+}
+
+static inline void mmc_host_clk_release(struct mmc_host *host)
+{
+}
+
+static inline unsigned int mmc_host_clk_rate(struct mmc_host *host)
+{
+       return host->ios.clock;
+}
+#endif
 #endif /* LINUX_MMC_HOST_H */
index 9350f3c..1358987 100644 (file)
@@ -4374,6 +4374,7 @@ enum {
        ALC882_FIXUP_ACER_ASPIRE_8930G,
        ALC882_FIXUP_ASPIRE_8930G_VERBS,
        ALC885_FIXUP_MACPRO_GPIO,
+       ALC889_FIXUP_DAC_ROUTE,
 };
 
 static void alc889_fixup_coef(struct hda_codec *codec,
@@ -4427,6 +4428,23 @@ static void alc885_fixup_macpro_gpio(struct hda_codec *codec,
        alc882_gpio_mute(codec, 1, 0);
 }
 
+/* Fix the connection of some pins for ALC889:
+ * At least, Acer Aspire 5935 shows the connections to DAC3/4 don't
+ * work correctly (bko#42740)
+ */
+static void alc889_fixup_dac_route(struct hda_codec *codec,
+                                  const struct alc_fixup *fix, int action)
+{
+       if (action == ALC_FIXUP_ACT_PRE_PROBE) {
+               hda_nid_t conn1[2] = { 0x0c, 0x0d };
+               hda_nid_t conn2[2] = { 0x0e, 0x0f };
+               snd_hda_override_conn_list(codec, 0x14, 2, conn1);
+               snd_hda_override_conn_list(codec, 0x15, 2, conn1);
+               snd_hda_override_conn_list(codec, 0x18, 2, conn2);
+               snd_hda_override_conn_list(codec, 0x1a, 2, conn2);
+       }
+}
+
 static const struct alc_fixup alc882_fixups[] = {
        [ALC882_FIXUP_ABIT_AW9D_MAX] = {
                .type = ALC_FIXUP_PINS,
@@ -4574,6 +4592,10 @@ static const struct alc_fixup alc882_fixups[] = {
                .type = ALC_FIXUP_FUNC,
                .v.func = alc885_fixup_macpro_gpio,
        },
+       [ALC889_FIXUP_DAC_ROUTE] = {
+               .type = ALC_FIXUP_FUNC,
+               .v.func = alc889_fixup_dac_route,
+       },
 };
 
 static const struct snd_pci_quirk alc882_fixup_tbl[] = {
@@ -4598,6 +4620,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
        SND_PCI_QUIRK(0x1025, 0x0142, "Acer Aspire 7730G",
                      ALC882_FIXUP_ACER_ASPIRE_4930G),
        SND_PCI_QUIRK(0x1025, 0x0155, "Packard-Bell M5120", ALC882_FIXUP_PB_M5210),
+       SND_PCI_QUIRK(0x1025, 0x0259, "Acer Aspire 5935", ALC889_FIXUP_DAC_ROUTE),
        SND_PCI_QUIRK(0x1025, 0x0296, "Acer Aspire 7736z", ALC882_FIXUP_ACER_ASPIRE_7736),
        SND_PCI_QUIRK(0x1043, 0x13c2, "Asus A7M", ALC882_FIXUP_EAPD),
        SND_PCI_QUIRK(0x1043, 0x1873, "ASUS W90V", ALC882_FIXUP_ASUS_W90V),
index 948f0be..6345df1 100644 (file)
@@ -5078,9 +5078,9 @@ static int stac92xx_update_led_status(struct hda_codec *codec)
                                spec->gpio_dir, spec->gpio_data);
        } else {
                notmtd_lvl = spec->gpio_led_polarity ?
-                               AC_PINCTL_VREF_HIZ : AC_PINCTL_VREF_GRD;
+                               AC_PINCTL_VREF_50 : AC_PINCTL_VREF_GRD;
                muted_lvl = spec->gpio_led_polarity ?
-                               AC_PINCTL_VREF_GRD : AC_PINCTL_VREF_HIZ;
+                               AC_PINCTL_VREF_GRD : AC_PINCTL_VREF_50;
                spec->vref_led = muted ? muted_lvl : notmtd_lvl;
                stac_vrefout_set(codec, spec->vref_mute_led_nid,
                                 spec->vref_led);
index 284e311..dff9a00 100644 (file)
@@ -666,6 +666,9 @@ static void via_auto_init_analog_input(struct hda_codec *codec)
        /* init input-src */
        for (i = 0; i < spec->num_adc_nids; i++) {
                int adc_idx = spec->inputs[spec->cur_mux[i]].adc_idx;
+               /* secondary ADCs must have the unique MUX */
+               if (i > 0 && !spec->mux_nids[i])
+                       break;
                if (spec->mux_nids[adc_idx]) {
                        int mux_idx = spec->inputs[spec->cur_mux[i]].mux_idx;
                        snd_hda_codec_write(codec, spec->mux_nids[adc_idx], 0,
index 9f3b01b..e0a4263 100644 (file)
@@ -2102,6 +2102,12 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = {
        },
        {
                .subvendor = 0x161f,
+               .subdevice = 0x202f,
+               .name = "Gateway M520",
+               .type = AC97_TUNE_INV_EAPD
+       },
+       {
+               .subvendor = 0x161f,
                .subdevice = 0x203a,
                .name = "Gateway 4525GZ",               /* AD1981B */
                .type = AC97_TUNE_INV_EAPD
index db6c89a..ea4a82d 100644 (file)
@@ -1152,12 +1152,8 @@ static snd_pcm_uframes_t fsi_pointer(struct snd_pcm_substream *substream)
 {
        struct fsi_priv *fsi = fsi_get_priv(substream);
        struct fsi_stream *io = fsi_get_stream(fsi, fsi_is_play(substream));
-       int samples_pos = io->buff_sample_pos - 1;
 
-       if (samples_pos < 0)
-               samples_pos = 0;
-
-       return fsi_sample2frame(fsi, samples_pos);
+       return fsi_sample2frame(fsi, io->buff_sample_pos);
 }
 
 static struct snd_pcm_ops fsi_pcm_ops = {