Pull trivial tree updates from Jiri Kosina.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
drivers/rtc: broken link fix
drm/i915 Fix typos in i915_gem_fence.c
Docs: fix missing word in REPORTING-BUGS
lib+mm: fix few spelling mistakes
MAINTAINERS: add git URL for APM driver
treewide: Fix typo in printk
* set of these objects.
*
* Fences are used to detile GTT memory mappings. They're also connected to the
- * hardware frontbuffer render tracking and hence interract with frontbuffer
- * conmpression. Furthermore on older platforms fences are required for tiled
+ * hardware frontbuffer render tracking and hence interact with frontbuffer
+ * compression. Furthermore on older platforms fences are required for tiled
* objects used by the display engine. They can also be used by the render
* engine - they're required for blitter commands and are optional for render
* commands. But on gen4+ both display (with the exception of fbc) and rendering
*
* Finally note that because fences are such a restricted resource they're
* dynamically associated with objects. Furthermore fence state is committed to
- * the hardware lazily to avoid unecessary stalls on gen2/3. Therefore code must
- * explictly call i915_gem_object_get_fence() to synchronize fencing status
+ * the hardware lazily to avoid unnecessary stalls on gen2/3. Therefore code must
+ * explicitly call i915_gem_object_get_fence() to synchronize fencing status
* for cpu access. Also note that some code wants an unfenced view, for those
* cases the fence can be removed forcefully with i915_gem_object_put_fence().
*
struct drm_i915_gem_object *obj)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- int fence_reg;
+ i915_reg_t fence_reg_lo, fence_reg_hi;
int fence_pitch_shift;
if (INTEL_INFO(dev)->gen >= 6) {
- fence_reg = FENCE_REG_SANDYBRIDGE_0;
- fence_pitch_shift = SANDYBRIDGE_FENCE_PITCH_SHIFT;
+ fence_reg_lo = FENCE_REG_GEN6_LO(reg);
+ fence_reg_hi = FENCE_REG_GEN6_HI(reg);
+ fence_pitch_shift = GEN6_FENCE_PITCH_SHIFT;
} else {
- fence_reg = FENCE_REG_965_0;
+ fence_reg_lo = FENCE_REG_965_LO(reg);
+ fence_reg_hi = FENCE_REG_965_HI(reg);
fence_pitch_shift = I965_FENCE_PITCH_SHIFT;
}
- fence_reg += reg * 8;
-
/* To w/a incoherency with non-atomic 64-bit register updates,
* we split the 64-bit update into two 32-bit writes. In order
* for a partial fence not to be evaluated between writes, we
* For extra levels of paranoia, we make sure each step lands
* before applying the next step.
*/
- I915_WRITE(fence_reg, 0);
- POSTING_READ(fence_reg);
+ I915_WRITE(fence_reg_lo, 0);
+ POSTING_READ(fence_reg_lo);
if (obj) {
u32 size = i915_gem_obj_ggtt_size(obj);
val |= 1 << I965_FENCE_TILING_Y_SHIFT;
val |= I965_FENCE_REG_VALID;
- I915_WRITE(fence_reg + 4, val >> 32);
- POSTING_READ(fence_reg + 4);
+ I915_WRITE(fence_reg_hi, val >> 32);
+ POSTING_READ(fence_reg_hi);
- I915_WRITE(fence_reg + 0, val);
- POSTING_READ(fence_reg);
+ I915_WRITE(fence_reg_lo, val);
+ POSTING_READ(fence_reg_lo);
} else {
- I915_WRITE(fence_reg + 4, 0);
- POSTING_READ(fence_reg + 4);
+ I915_WRITE(fence_reg_hi, 0);
+ POSTING_READ(fence_reg_hi);
}
}
WARN((i915_gem_obj_ggtt_offset(obj) & ~I915_FENCE_START_MASK) ||
(size & -size) != size ||
(i915_gem_obj_ggtt_offset(obj) & (size - 1)),
- "object 0x%08lx [fenceable? %d] not 1M or pot-size (0x%08x) aligned\n",
+ "object 0x%08llx [fenceable? %d] not 1M or pot-size (0x%08x) aligned\n",
i915_gem_obj_ggtt_offset(obj), obj->map_and_fenceable, size);
if (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev))
} else
val = 0;
- if (reg < 8)
- reg = FENCE_REG_830_0 + reg * 4;
- else
- reg = FENCE_REG_945_8 + (reg - 8) * 4;
-
- I915_WRITE(reg, val);
- POSTING_READ(reg);
+ I915_WRITE(FENCE_REG(reg), val);
+ POSTING_READ(FENCE_REG(reg));
}
static void i830_write_fence_reg(struct drm_device *dev, int reg,
WARN((i915_gem_obj_ggtt_offset(obj) & ~I830_FENCE_START_MASK) ||
(size & -size) != size ||
(i915_gem_obj_ggtt_offset(obj) & (size - 1)),
- "object 0x%08lx not 512K or pot-size 0x%08x aligned\n",
+ "object 0x%08llx not 512K or pot-size 0x%08x aligned\n",
i915_gem_obj_ggtt_offset(obj), size);
pitch_val = obj->stride / 128;
} else
val = 0;
- I915_WRITE(FENCE_REG_830_0 + reg * 4, val);
- POSTING_READ(FENCE_REG_830_0 + reg * 4);
+ I915_WRITE(FENCE_REG(reg), val);
+ POSTING_READ(FENCE_REG(reg));
}
inline static bool i915_gem_object_needs_mb(struct drm_i915_gem_object *obj)
/* First try to find a free reg */
avail = NULL;
- for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) {
+ for (i = 0; i < dev_priv->num_fence_regs; i++) {
reg = &dev_priv->fence_regs[i];
if (!reg->obj)
return reg;
* required.
*
* When bit 17 is XORed in, we simply refuse to tile at all. Bit
- * 17 is not just a page offset, so as we page an objet out and back in,
+ * 17 is not just a page offset, so as we page an object out and back in,
* individual pages in it will have different bit 17 addresses, resulting in
* each 64 bytes being swapped with its neighbor!
*
}
/* check for L-shaped memory aka modified enhanced addressing */
- if (IS_GEN4(dev)) {
- uint32_t ddc2 = I915_READ(DCC2);
-
- if (!(ddc2 & DCC2_MODIFIED_ENHANCED_DISABLE))
- dev_priv->quirks |= QUIRK_PIN_SWIZZLED_PAGES;
+ if (IS_GEN4(dev) &&
+ !(I915_READ(DCC2) & DCC2_MODIFIED_ENHANCED_DISABLE)) {
+ swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
+ swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
}
if (dcc == 0xffffffff) {
* matching, which was the case for the swizzling required in
* the table above, or from the 1-ch value being less than
* the minimum size of a rank.
+ *
+ * Reports indicate that the swizzling actually
+ * varies depending upon page placement inside the
+ * channels, i.e. we see swizzled pages where the
+ * banks of memory are paired and unswizzled on the
+ * uneven portion, so leave that as unknown.
*/
- if (I915_READ16(C0DRB3) != I915_READ16(C1DRB3)) {
- swizzle_x = I915_BIT_6_SWIZZLE_NONE;
- swizzle_y = I915_BIT_6_SWIZZLE_NONE;
- } else {
+ if (I915_READ16(C0DRB3) == I915_READ16(C1DRB3)) {
swizzle_x = I915_BIT_6_SWIZZLE_9_10;
swizzle_y = I915_BIT_6_SWIZZLE_9;
}
}
+ if (swizzle_x == I915_BIT_6_SWIZZLE_UNKNOWN ||
+ swizzle_y == I915_BIT_6_SWIZZLE_UNKNOWN) {
+ /* Userspace likes to explode if it sees unknown swizzling,
+ * so lie. We will finish the lie when reporting through
+ * the get-tiling-ioctl by reporting the physical swizzle
+ * mode as unknown instead.
+ *
+ * As we don't strictly know what the swizzling is, it may be
+ * bit17 dependent, and so we need to also prevent the pages
+ * from being moved.
+ */
+ dev_priv->quirks |= QUIRK_PIN_SWIZZLED_PAGES;
+ swizzle_x = I915_BIT_6_SWIZZLE_NONE;
+ swizzle_y = I915_BIT_6_SWIZZLE_NONE;
+ }
+
dev_priv->mm.bit_6_swizzle_x = swizzle_x;
dev_priv->mm.bit_6_swizzle_y = swizzle_y;
}
case IB_QPS_ERR:
return "ERR";
default:
- return "UNKOWN STATE";
+ return "UNKNOWN STATE";
}
}
/* Create Flow Handle */
qp_flow = kzalloc(sizeof(*qp_flow), GFP_ATOMIC);
- if (IS_ERR_OR_NULL(qp_flow)) {
- err = qp_flow ? PTR_ERR(qp_flow) : -ENOMEM;
+ if (!qp_flow) {
+ err = -ENOMEM;
goto out_dealloc_flow;
}
qp_flow->flow = flow;
/* Create qp_flow */
qp_flow = kzalloc(sizeof(*qp_flow), GFP_ATOMIC);
- if (IS_ERR_OR_NULL(qp_flow)) {
- err = qp_flow ? PTR_ERR(qp_flow) : -ENOMEM;
+ if (!qp_flow) {
+ err = -ENOMEM;
goto out_dealloc_flow;
}
qp_flow->flow = flow;
if (!status) {
qp_grp->state = new_state;
- usnic_info("Transistioned %u from %s to %s",
+ usnic_info("Transitioned %u from %s to %s",
qp_grp->grp_id,
usnic_ib_qp_grp_state_to_string(old_state),
usnic_ib_qp_grp_state_to_string(new_state));
return res_chunk_list;
out_free_res:
- for (i--; i > 0; i--)
+ for (i--; i >= 0; i--)
usnic_vnic_put_resources(res_chunk_list[i]);
kfree(res_chunk_list);
return ERR_PTR(err);
* All rights reserved.
*
* Modified by fengjh at rising.com.cn
- * <http://lists.lm-sensors.org/mailman/listinfo/lm-sensors>
+ * <lm-sensors@lm-sensors.org>
* 2006.11
*
* Code cleanup by Sergei Poselenov, <sposelenov@emcraft.com>
{
struct i2c_client *client = dev_id;
struct rx8025_data *rx8025 = i2c_get_clientdata(client);
+ struct mutex *lock = &rx8025->rtc->ops_lock;
int status;
+ mutex_lock(lock);
status = rx8025_read_reg(client, RX8025_REG_CTRL2);
if (status < 0)
goto out;
}
out:
+ mutex_unlock(lock);
+
return IRQ_HANDLED;
}
if (client->irq <= 0)
return -EINVAL;
- /* Hardware alarm precision is 1 minute! */
+ /*
+ * Hardware alarm precision is 1 minute!
+ * round up to nearest minute
+ */
+ if (t->time.tm_sec) {
+ time64_t alarm_time = rtc_tm_to_time64(&t->time);
+
+ alarm_time += 60 - t->time.tm_sec;
+ rtc_time64_to_tm(alarm_time, &t->time);
+ }
+
ald[0] = bin2bcd(t->time.tm_min);
if (rx8025->ctrl1 & RX8025_BIT_CTRL1_1224)
ald[1] = bin2bcd(t->time.tm_hour);
}
rx8025 = devm_kzalloc(&client->dev, sizeof(*rx8025), GFP_KERNEL);
- if (!rx8025) {
+ if (!rx8025)
return -ENOMEM;
- }
rx8025->client = client;
i2c_set_clientdata(client, rx8025);
if (client->irq > 0) {
dev_info(&client->dev, "IRQ %d supplied\n", client->irq);
err = devm_request_threaded_irq(&client->dev, client->irq, NULL,
- rx8025_handle_irq, 0, "rx8025",
- client);
+ rx8025_handle_irq,
+ IRQF_ONESHOT,
+ "rx8025", client);
if (err) {
dev_err(&client->dev, "unable to request IRQ, alarms disabled\n");
client->irq = 0;
rx8025->rtc->max_user_freq = 1;
+ /* the rx8025 alarm only supports a minute accuracy */
+ rx8025->rtc->uie_unsupported = 1;
+
err = rx8025_sysfs_register(&client->dev);
return err;
}
- CDC Ethernet Emulation Model (EEM) is a newer standard that has
a simpler interface that can be used by more USB hardware.
- RNDIS support is an additional option, more demanding than than
- subset.
+ RNDIS support is an additional option, more demanding than subset.
Within the USB device, this gadget driver exposes a network device
"usbX", where X depends on what other networking devices you have.
tristate "USB Gadget Target Fabric Module"
depends on TARGET_CORE
select USB_LIBCOMPOSITE
+ select USB_F_TCM
help
This fabric is an USB gadget. Two USB protocols are supported that is
BBB or BOT (Bulk Only Transport) and UAS (USB Attached SCSI). BOT is
printk_deferred(" timekeeping: Your kernel is sick, but tries to cope by capping time updates\n");
} else {
if (offset > (max_cycles >> 1)) {
- printk_deferred("INFO: timekeeping: Cycle offset (%lld) is larger than the the '%s' clock's 50%% safety margin (%lld)\n",
+ printk_deferred("INFO: timekeeping: Cycle offset (%lld) is larger than the '%s' clock's 50%% safety margin (%lld)\n",
offset, name, max_cycles >> 1);
printk_deferred(" timekeeping: Your kernel is still fine, but is feeling a bit nervous\n");
}
u64 tmp, ntpinterval;
struct clocksource *old_clock;
+ ++tk->cs_was_changed_seq;
old_clock = tk->tkr_mono.clock;
tk->tkr_mono.clock = clock;
tk->tkr_mono.read = clock->read;
static inline u32 arch_gettimeoffset(void) { return 0; }
#endif
-static inline s64 timekeeping_get_ns(struct tk_read_base *tkr)
+static inline s64 timekeeping_delta_to_ns(struct tk_read_base *tkr,
+ cycle_t delta)
{
- cycle_t delta;
s64 nsec;
- delta = timekeeping_get_delta(tkr);
-
nsec = delta * tkr->mult + tkr->xtime_nsec;
nsec >>= tkr->shift;
return nsec + arch_gettimeoffset();
}
+static inline s64 timekeeping_get_ns(struct tk_read_base *tkr)
+{
+ cycle_t delta;
+
+ delta = timekeeping_get_delta(tkr);
+ return timekeeping_delta_to_ns(tkr, delta);
+}
+
+static inline s64 timekeeping_cycles_to_ns(struct tk_read_base *tkr,
+ cycle_t cycles)
+{
+ cycle_t delta;
+
+ /* calculate the delta since the last update_wall_time */
+ delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask);
+ return timekeeping_delta_to_ns(tkr, delta);
+}
+
/**
* update_fast_timekeeper - Update the fast and NMI safe monotonic timekeeper.
* @tkr: Timekeeping readout base from which we take the update
}
EXPORT_SYMBOL_GPL(ktime_get_real_seconds);
-#ifdef CONFIG_NTP_PPS
+/**
+ * __ktime_get_real_seconds - The same as ktime_get_real_seconds
+ * but without the sequence counter protect. This internal function
+ * is called just when timekeeping lock is already held.
+ */
+time64_t __ktime_get_real_seconds(void)
+{
+ struct timekeeper *tk = &tk_core.timekeeper;
+
+ return tk->xtime_sec;
+}
/**
- * ktime_get_raw_and_real_ts64 - get day and raw monotonic time in timespec format
- * @ts_raw: pointer to the timespec to be set to raw monotonic time
- * @ts_real: pointer to the timespec to be set to the time of day
- *
- * This function reads both the time of day and raw monotonic time at the
- * same time atomically and stores the resulting timestamps in timespec
- * format.
+ * ktime_get_snapshot - snapshots the realtime/monotonic raw clocks with counter
+ * @systime_snapshot: pointer to struct receiving the system time snapshot
*/
-void ktime_get_raw_and_real_ts64(struct timespec64 *ts_raw, struct timespec64 *ts_real)
+void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot)
{
struct timekeeper *tk = &tk_core.timekeeper;
unsigned long seq;
- s64 nsecs_raw, nsecs_real;
+ ktime_t base_raw;
+ ktime_t base_real;
+ s64 nsec_raw;
+ s64 nsec_real;
+ cycle_t now;
WARN_ON_ONCE(timekeeping_suspended);
do {
seq = read_seqcount_begin(&tk_core.seq);
- *ts_raw = tk->raw_time;
- ts_real->tv_sec = tk->xtime_sec;
- ts_real->tv_nsec = 0;
+ now = tk->tkr_mono.read(tk->tkr_mono.clock);
+ systime_snapshot->cs_was_changed_seq = tk->cs_was_changed_seq;
+ systime_snapshot->clock_was_set_seq = tk->clock_was_set_seq;
+ base_real = ktime_add(tk->tkr_mono.base,
+ tk_core.timekeeper.offs_real);
+ base_raw = tk->tkr_raw.base;
+ nsec_real = timekeeping_cycles_to_ns(&tk->tkr_mono, now);
+ nsec_raw = timekeeping_cycles_to_ns(&tk->tkr_raw, now);
+ } while (read_seqcount_retry(&tk_core.seq, seq));
+
+ systime_snapshot->cycles = now;
+ systime_snapshot->real = ktime_add_ns(base_real, nsec_real);
+ systime_snapshot->raw = ktime_add_ns(base_raw, nsec_raw);
+}
+EXPORT_SYMBOL_GPL(ktime_get_snapshot);
- nsecs_raw = timekeeping_get_ns(&tk->tkr_raw);
- nsecs_real = timekeeping_get_ns(&tk->tkr_mono);
+/* Scale base by mult/div checking for overflow */
+static int scale64_check_overflow(u64 mult, u64 div, u64 *base)
+{
+ u64 tmp, rem;
- } while (read_seqcount_retry(&tk_core.seq, seq));
+ tmp = div64_u64_rem(*base, div, &rem);
- timespec64_add_ns(ts_raw, nsecs_raw);
- timespec64_add_ns(ts_real, nsecs_real);
+ if (((int)sizeof(u64)*8 - fls64(mult) < fls64(tmp)) ||
+ ((int)sizeof(u64)*8 - fls64(mult) < fls64(rem)))
+ return -EOVERFLOW;
+ tmp *= mult;
+ rem *= mult;
+
+ do_div(rem, div);
+ *base = tmp + rem;
+ return 0;
}
-EXPORT_SYMBOL(ktime_get_raw_and_real_ts64);
-#endif /* CONFIG_NTP_PPS */
+/**
+ * adjust_historical_crosststamp - adjust crosstimestamp previous to current interval
+ * @history: Snapshot representing start of history
+ * @partial_history_cycles: Cycle offset into history (fractional part)
+ * @total_history_cycles: Total history length in cycles
+ * @discontinuity: True indicates clock was set on history period
+ * @ts: Cross timestamp that should be adjusted using
+ * partial/total ratio
+ *
+ * Helper function used by get_device_system_crosststamp() to correct the
+ * crosstimestamp corresponding to the start of the current interval to the
+ * system counter value (timestamp point) provided by the driver. The
+ * total_history_* quantities are the total history starting at the provided
+ * reference point and ending at the start of the current interval. The cycle
+ * count between the driver timestamp point and the start of the current
+ * interval is partial_history_cycles.
+ */
+static int adjust_historical_crosststamp(struct system_time_snapshot *history,
+ cycle_t partial_history_cycles,
+ cycle_t total_history_cycles,
+ bool discontinuity,
+ struct system_device_crosststamp *ts)
+{
+ struct timekeeper *tk = &tk_core.timekeeper;
+ u64 corr_raw, corr_real;
+ bool interp_forward;
+ int ret;
+
+ if (total_history_cycles == 0 || partial_history_cycles == 0)
+ return 0;
+
+ /* Interpolate shortest distance from beginning or end of history */
+ interp_forward = partial_history_cycles > total_history_cycles/2 ?
+ true : false;
+ partial_history_cycles = interp_forward ?
+ total_history_cycles - partial_history_cycles :
+ partial_history_cycles;
+
+ /*
+ * Scale the monotonic raw time delta by:
+ * partial_history_cycles / total_history_cycles
+ */
+ corr_raw = (u64)ktime_to_ns(
+ ktime_sub(ts->sys_monoraw, history->raw));
+ ret = scale64_check_overflow(partial_history_cycles,
+ total_history_cycles, &corr_raw);
+ if (ret)
+ return ret;
+
+ /*
+ * If there is a discontinuity in the history, scale monotonic raw
+ * correction by:
+ * mult(real)/mult(raw) yielding the realtime correction
+ * Otherwise, calculate the realtime correction similar to monotonic
+ * raw calculation
+ */
+ if (discontinuity) {
+ corr_real = mul_u64_u32_div
+ (corr_raw, tk->tkr_mono.mult, tk->tkr_raw.mult);
+ } else {
+ corr_real = (u64)ktime_to_ns(
+ ktime_sub(ts->sys_realtime, history->real));
+ ret = scale64_check_overflow(partial_history_cycles,
+ total_history_cycles, &corr_real);
+ if (ret)
+ return ret;
+ }
+
+ /* Fixup monotonic raw and real time time values */
+ if (interp_forward) {
+ ts->sys_monoraw = ktime_add_ns(history->raw, corr_raw);
+ ts->sys_realtime = ktime_add_ns(history->real, corr_real);
+ } else {
+ ts->sys_monoraw = ktime_sub_ns(ts->sys_monoraw, corr_raw);
+ ts->sys_realtime = ktime_sub_ns(ts->sys_realtime, corr_real);
+ }
+
+ return 0;
+}
+
+/*
+ * cycle_between - true if test occurs chronologically between before and after
+ */
+static bool cycle_between(cycle_t before, cycle_t test, cycle_t after)
+{
+ if (test > before && test < after)
+ return true;
+ if (test < before && before > after)
+ return true;
+ return false;
+}
+
+/**
+ * get_device_system_crosststamp - Synchronously capture system/device timestamp
+ * @get_time_fn: Callback to get simultaneous device time and
+ * system counter from the device driver
+ * @ctx: Context passed to get_time_fn()
+ * @history_begin: Historical reference point used to interpolate system
+ * time when counter provided by the driver is before the current interval
+ * @xtstamp: Receives simultaneously captured system and device time
+ *
+ * Reads a timestamp from a device and correlates it to system time
+ */
+int get_device_system_crosststamp(int (*get_time_fn)
+ (ktime_t *device_time,
+ struct system_counterval_t *sys_counterval,
+ void *ctx),
+ void *ctx,
+ struct system_time_snapshot *history_begin,
+ struct system_device_crosststamp *xtstamp)
+{
+ struct system_counterval_t system_counterval;
+ struct timekeeper *tk = &tk_core.timekeeper;
+ cycle_t cycles, now, interval_start;
+ unsigned int clock_was_set_seq = 0;
+ ktime_t base_real, base_raw;
+ s64 nsec_real, nsec_raw;
+ u8 cs_was_changed_seq;
+ unsigned long seq;
+ bool do_interp;
+ int ret;
+
+ do {
+ seq = read_seqcount_begin(&tk_core.seq);
+ /*
+ * Try to synchronously capture device time and a system
+ * counter value calling back into the device driver
+ */
+ ret = get_time_fn(&xtstamp->device, &system_counterval, ctx);
+ if (ret)
+ return ret;
+
+ /*
+ * Verify that the clocksource associated with the captured
+ * system counter value is the same as the currently installed
+ * timekeeper clocksource
+ */
+ if (tk->tkr_mono.clock != system_counterval.cs)
+ return -ENODEV;
+ cycles = system_counterval.cycles;
+
+ /*
+ * Check whether the system counter value provided by the
+ * device driver is on the current timekeeping interval.
+ */
+ now = tk->tkr_mono.read(tk->tkr_mono.clock);
+ interval_start = tk->tkr_mono.cycle_last;
+ if (!cycle_between(interval_start, cycles, now)) {
+ clock_was_set_seq = tk->clock_was_set_seq;
+ cs_was_changed_seq = tk->cs_was_changed_seq;
+ cycles = interval_start;
+ do_interp = true;
+ } else {
+ do_interp = false;
+ }
+
+ base_real = ktime_add(tk->tkr_mono.base,
+ tk_core.timekeeper.offs_real);
+ base_raw = tk->tkr_raw.base;
+
+ nsec_real = timekeeping_cycles_to_ns(&tk->tkr_mono,
+ system_counterval.cycles);
+ nsec_raw = timekeeping_cycles_to_ns(&tk->tkr_raw,
+ system_counterval.cycles);
+ } while (read_seqcount_retry(&tk_core.seq, seq));
+
+ xtstamp->sys_realtime = ktime_add_ns(base_real, nsec_real);
+ xtstamp->sys_monoraw = ktime_add_ns(base_raw, nsec_raw);
+
+ /*
+ * Interpolate if necessary, adjusting back from the start of the
+ * current interval
+ */
+ if (do_interp) {
+ cycle_t partial_history_cycles, total_history_cycles;
+ bool discontinuity;
+
+ /*
+ * Check that the counter value occurs after the provided
+ * history reference and that the history doesn't cross a
+ * clocksource change
+ */
+ if (!history_begin ||
+ !cycle_between(history_begin->cycles,
+ system_counterval.cycles, cycles) ||
+ history_begin->cs_was_changed_seq != cs_was_changed_seq)
+ return -EINVAL;
+ partial_history_cycles = cycles - system_counterval.cycles;
+ total_history_cycles = cycles - history_begin->cycles;
+ discontinuity =
+ history_begin->clock_was_set_seq != clock_was_set_seq;
+
+ ret = adjust_historical_crosststamp(history_begin,
+ partial_history_cycles,
+ total_history_cycles,
+ discontinuity, xtstamp);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(get_device_system_crosststamp);
/**
* do_gettimeofday - Returns the time of day in a timeval
struct timespec64 ts64, tmp;
int ret = 0;
- if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
+ if (!timespec_inject_offset_valid(ts))
return -EINVAL;
ts64 = timespec_to_timespec64(*ts);
{
s64 interval = tk->cycle_interval;
s64 xinterval = tk->xtime_interval;
+ u32 base = tk->tkr_mono.clock->mult;
+ u32 max = tk->tkr_mono.clock->maxadj;
+ u32 cur_adj = tk->tkr_mono.mult;
s64 tick_error;
bool negative;
- u32 adj;
+ u32 adj_scale;
/* Remove any current error adj from freq calculation */
if (tk->ntp_err_mult)
/* preserve the direction of correction */
negative = (tick_error < 0);
- /* Sort out the magnitude of the correction */
- tick_error = abs64(tick_error);
- for (adj = 0; tick_error > interval; adj++)
+ /* If any adjustment would pass the max, just return */
+ if (negative && (cur_adj - 1) <= (base - max))
+ return;
+ if (!negative && (cur_adj + 1) >= (base + max))
+ return;
+ /*
+ * Sort out the magnitude of the correction, but
+ * avoid making so large a correction that we go
+ * over the max adjustment.
+ */
+ adj_scale = 0;
+ tick_error = abs(tick_error);
+ while (tick_error > interval) {
+ u32 adj = 1 << (adj_scale + 1);
+
+ /* Check if adjustment gets us within 1 unit from the max */
+ if (negative && (cur_adj - adj) <= (base - max))
+ break;
+ if (!negative && (cur_adj + adj) >= (base + max))
+ break;
+
+ adj_scale++;
tick_error >>= 1;
+ }
/* scale the corrections */
- timekeeping_apply_adjustment(tk, offset, negative, adj);
+ timekeeping_apply_adjustment(tk, offset, negative, adj_scale);
}
/*
((s) == 2 ? be16_to_cpu(get_unaligned((__be16 *)d)) : \
(s) == 4 ? be32_to_cpu(get_unaligned((__be32 *)d)) : \
(s) == 8 ? be64_to_cpu(get_unaligned((__be64 *)d)) : \
- WARN(1, "pr_debug param err invalid size %x\n", s))
+ 0)
static int next_bits(struct sw842_param *p, u64 *d, u8 n);
return -EINVAL;
}
- pr_debug("index%x to %lx off %lx adjoff %lx tot %lx data %lx\n",
- size, (unsigned long)index, (unsigned long)(index * size),
- (unsigned long)offset, (unsigned long)total,
- (unsigned long)beN_to_cpu(&p->ostart[offset], size));
+ if (size != 2 && size != 4 && size != 8)
+ WARN(1, "__do_index invalid size %x\n", size);
+ else
+ pr_debug("index%x to %lx off %lx adjoff %lx tot %lx data %lx\n",
+ size, (unsigned long)index,
+ (unsigned long)(index * size), (unsigned long)offset,
+ (unsigned long)total,
+ (unsigned long)beN_to_cpu(&p->ostart[offset], size));
memcpy(p->out, &p->ostart[offset], size);
p->out += size;
case OP_ACTION_NOOP:
break;
default:
- pr_err("Interal error, invalid op %x\n", op);
+ pr_err("Internal error, invalid op %x\n", op);
return -EINVAL;
}
/*
* balloon_page_enqueue - allocates a new page and inserts it into the balloon
* page list.
- * @b_dev_info: balloon device decriptor where we will insert a new page to
+ * @b_dev_info: balloon device descriptor where we will insert a new page to
*
* Driver must call it to properly allocate a new enlisted balloon page
- * before definetively removing it from the guest system.
+ * before definitively removing it from the guest system.
* This function returns the page address for the recently enqueued page or
* NULL in the case we fail to allocate a new page this turn.
*/
bool dequeued_page;
dequeued_page = false;
+ spin_lock_irqsave(&b_dev_info->pages_lock, flags);
list_for_each_entry_safe(page, tmp, &b_dev_info->pages, lru) {
/*
* Block others from accessing the 'page' while we get around
continue;
}
#endif
- spin_lock_irqsave(&b_dev_info->pages_lock, flags);
balloon_page_delete(page);
__count_vm_event(BALLOON_DEFLATE);
- spin_unlock_irqrestore(&b_dev_info->pages_lock, flags);
unlock_page(page);
dequeued_page = true;
break;
}
}
+ spin_unlock_irqrestore(&b_dev_info->pages_lock, flags);
if (!dequeued_page) {
/*
* @dst_port: destination port.
*/
struct geneve_port {
- u16 port_no;
+ u16 dst_port;
};
static inline struct geneve_port *geneve_vport(const struct vport *vport)
{
struct geneve_port *geneve_port = geneve_vport(vport);
- if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT, geneve_port->port_no))
+ if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT, geneve_port->dst_port))
return -EMSGSIZE;
return 0;
}
return vport;
geneve_port = geneve_vport(vport);
- geneve_port->port_no = dst_port;
+ geneve_port->dst_port = dst_port;
rtnl_lock();
dev = geneve_dev_create_fb(net, parms->name, NET_NAME_USER, dst_port);
.destroy = ovs_netdev_tunnel_destroy,
.get_options = geneve_get_options,
.send = dev_queue_xmit,
- .owner = THIS_MODULE,
};
static int __init ovs_geneve_tnl_init(void)
module_init(ovs_geneve_tnl_init);
module_exit(ovs_geneve_tnl_exit);
- MODULE_DESCRIPTION("OVS: Geneve swiching port");
+ MODULE_DESCRIPTION("OVS: Geneve switching port");
MODULE_LICENSE("GPL");
MODULE_ALIAS("vport-type-5");
projects / deliverable / linux.git / commitdiff
