2.6.34.2-rc1 stable review

@@ -365,7 +365,17 @@ int cx23885_i2c_register(struct cx23885_
 
 		memset(&info, 0, sizeof(struct i2c_board_info));
 		strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
-		i2c_new_probed_device(&bus->i2c_adap, &info, addr_list);
+		/*
+		 * We can't call i2c_new_probed_device() because it uses
+		 * quick writes for probing and the IR receiver device only
+		 * replies to reads.
+		 */
+		if (i2c_smbus_xfer(&bus->i2c_adap, addr_list[0], 0,
+				   I2C_SMBUS_READ, 0, I2C_SMBUS_QUICK,
+				   NULL) >= 0) {
+			info.addr = addr_list[0];
+			i2c_new_device(&bus->i2c_adap, &info);
+		}
 	}
 
 	return bus->i2c_rc;

@@ -188,10 +188,24 @@ int cx88_i2c_init(struct cx88_core *core
 			0x18, 0x6b, 0x71,
 			I2C_CLIENT_END
 		};
+		const unsigned short *addrp;
 
 		memset(&info, 0, sizeof(struct i2c_board_info));
 		strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
-		i2c_new_probed_device(&core->i2c_adap, &info, addr_list);
+		/*
+		 * We can't call i2c_new_probed_device() because it uses
+		 * quick writes for probing and at least some R receiver
+		 * devices only reply to reads.
+		 */
+		for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) {
+			if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0,
+					   I2C_SMBUS_READ, 0,
+					   I2C_SMBUS_QUICK, NULL) >= 0) {
+				info.addr = *addrp;
+				i2c_new_device(&core->i2c_adap, &info);
+				break;
+			}
+		}
 	}
 	return core->i2c_rc;
 }

@@ -380,6 +380,12 @@ out:
     return retval;
 }
 
+static irqreturn_t el2_probe_interrupt(int irq, void *seen)
+{
+	*(bool *)seen = true;
+	return IRQ_HANDLED;
+}
+
 static int
 el2_open(struct net_device *dev)
 {

@@ -391,23 +397,35 @@ el2_open(struct net_device *dev)
 
 	outb(EGACFR_NORM, E33G_GACFR);	/* Enable RAM and interrupts. */
 	do {
-	    retval = request_irq(*irqp, NULL, 0, "bogus", dev);
-	    if (retval >= 0) {
+		bool seen;
+
+		retval = request_irq(*irqp, el2_probe_interrupt, 0,
+				     dev->name, &seen);
+		if (retval == -EBUSY)
+			continue;
+		if (retval < 0)
+			goto err_disable;
+
 		/* Twinkle the interrupt, and check if it's seen. */
-		unsigned long cookie = probe_irq_on();
+		seen = false;
+		smp_wmb();
 		outb_p(0x04 << ((*irqp == 9) ? 2 : *irqp), E33G_IDCFR);
 		outb_p(0x00, E33G_IDCFR);
-		if (*irqp == probe_irq_off(cookie) &&	/* It's a good IRQ line! */
-		    ((retval = request_irq(dev->irq = *irqp,
-					   eip_interrupt, 0,
-					   dev->name, dev)) == 0))
-		    break;
-	    } else {
-		    if (retval != -EBUSY)
-			    return retval;
-	    }
+		msleep(1);
+		free_irq(*irqp, el2_probe_interrupt);
+		if (!seen)
+			continue;
+
+		retval = request_irq(dev->irq = *irqp, eip_interrupt, 0,
+				     dev->name, dev);
+		if (retval == -EBUSY)
+			continue;
+		if (retval < 0)
+			goto err_disable;
 	} while (*++irqp);
+
 	if (*irqp == 0) {
+	err_disable:
 	    outb(EGACFR_IRQOFF, E33G_GACFR);	/* disable interrupts. */
 	    return -EAGAIN;
 	}

@@ -213,15 +213,25 @@ static void ieee80211_send_assoc(struct
 
 	sband = local->hw.wiphy->bands[wk->chan->band];
 
-	/*
-	 * Get all rates supported by the device and the AP as
-	 * some APs don't like getting a superset of their rates
-	 * in the association request (e.g. D-Link DAP 1353 in
-	 * b-only mode)...
-	 */
-	rates_len = ieee80211_compatible_rates(wk->assoc.supp_rates,
-					       wk->assoc.supp_rates_len,
-					       sband, &rates);
+	if (wk->assoc.supp_rates_len) {
+		/*
+		 * Get all rates supported by the device and the AP as
+		 * some APs don't like getting a superset of their rates
+		 * in the association request (e.g. D-Link DAP 1353 in
+		 * b-only mode)...
+		 */
+		rates_len = ieee80211_compatible_rates(wk->assoc.supp_rates,
+						       wk->assoc.supp_rates_len,
+						       sband, &rates);
+	} else {
+		/*
+		 * In case AP not provide any supported rates information
+		 * before association, we send information element(s) with
+		 * all rates that we support.
+		 */
+		rates = ~0;
+		rates_len = sband->n_bitrates;
+	}
 
 	skb = alloc_skb(local->hw.extra_tx_headroom +
 			sizeof(*mgmt) + /* bit too much but doesn't matter */

@@ -247,6 +247,7 @@ static const struct flash_spec flash_570
 MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl);
 
 static void bnx2_init_napi(struct bnx2 *bp);
+static void bnx2_del_napi(struct bnx2 *bp);
 
 static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_tx_ring_info *txr)
 {

@@ -6265,6 +6266,7 @@ open_err:
 	bnx2_free_skbs(bp);
 	bnx2_free_irq(bp);
 	bnx2_free_mem(bp);
+	bnx2_del_napi(bp);
 	return rc;
 }
 

@@ -6523,6 +6525,7 @@ bnx2_close(struct net_device *dev)
 	bnx2_free_irq(bp);
 	bnx2_free_skbs(bp);
 	bnx2_free_mem(bp);
+	bnx2_del_napi(bp);
 	bp->link_up = 0;
 	netif_carrier_off(bp->dev);
 	bnx2_set_power_state(bp, PCI_D3hot);

@@ -8213,7 +8216,16 @@ bnx2_bus_string(struct bnx2 *bp, char *s
 	return str;
 }
 
-static void __devinit
+static void
+bnx2_del_napi(struct bnx2 *bp)
+{
+	int i;
+
+	for (i = 0; i < bp->irq_nvecs; i++)
+		netif_napi_del(&bp->bnx2_napi[i].napi);
+}
+
+static void
 bnx2_init_napi(struct bnx2 *bp)
 {
 	int i;

@@ -69,7 +69,9 @@ xfs_swapext(
 		goto out;
 	}
 
-	if (!(file->f_mode & FMODE_WRITE) || (file->f_flags & O_APPEND)) {
+	if (!(file->f_mode & FMODE_WRITE) ||
+	    !(file->f_mode & FMODE_READ) ||
+	    (file->f_flags & O_APPEND)) {
 		error = XFS_ERROR(EBADF);
 		goto out_put_file;
 	}

@@ -81,6 +83,7 @@ xfs_swapext(
 	}
 
 	if (!(tmp_file->f_mode & FMODE_WRITE) ||
+	    !(tmp_file->f_mode & FMODE_READ) ||
 	    (tmp_file->f_flags & O_APPEND)) {
 		error = XFS_ERROR(EBADF);
 		goto out_put_tmp_file;

@@ -2169,6 +2169,15 @@ static struct usb_device_id uvc_ids[] =
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/* Arkmicro unbranded */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x18ec,
+	  .idProduct		= 0x3290,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_DEF },
 	/* Bodelin ProScopeHR */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_DEV_HI

@@ -2105,6 +2105,15 @@ static struct usb_device_id uvc_ids[] =
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
+	/* Syntek (Packard Bell EasyNote MX52 */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x174f,
+	  .idProduct		= 0x8a12,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
 	/* Syntek (Asus F9SG) */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,

@@ -91,11 +91,16 @@ static struct uvc_format_desc uvc_fmts[]
 		.fcc		= V4L2_PIX_FMT_UYVY,
 	},
 	{
-		.name		= "Greyscale",
+		.name		= "Greyscale (8-bit)",
 		.guid		= UVC_GUID_FORMAT_Y800,
 		.fcc		= V4L2_PIX_FMT_GREY,
 	},
 	{
+		.name		= "Greyscale (16-bit)",
+		.guid		= UVC_GUID_FORMAT_Y16,
+		.fcc		= V4L2_PIX_FMT_Y16,
+	},
+	{
 		.name		= "RGB Bayer",
 		.guid		= UVC_GUID_FORMAT_BY8,
 		.fcc		= V4L2_PIX_FMT_SBGGR8,

@@ -131,11 +131,13 @@ struct uvc_xu_control {
 #define UVC_GUID_FORMAT_Y800 \
 	{ 'Y',  '8',  '0',  '0', 0x00, 0x00, 0x10, 0x00, \
 	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y16 \
+	{ 'Y',  '1',  '6',  ' ', 0x00, 0x00, 0x10, 0x00, \
+	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
 #define UVC_GUID_FORMAT_BY8 \
 	{ 'B',  'Y',  '8',  ' ', 0x00, 0x00, 0x10, 0x00, \
 	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
 
-
 /* ------------------------------------------------------------------------
  * Driver specific constants.
  */

@@ -1556,7 +1556,7 @@ void submit_bio(int rw, struct bio *bio)
 	 * If it's a regular read/write or a barrier with data attached,
 	 * go through the normal accounting stuff before submission.
 	 */
-	if (bio_has_data(bio)) {
+	if (bio_has_data(bio) && !(rw & (1 << BIO_RW_DISCARD))) {
 		if (rw & WRITE) {
 			count_vm_events(PGPGOUT, count);
 		} else {

@@ -1635,6 +1635,11 @@ void iwl_rx_reply_compressed_ba(struct i
 	sta_id = ba_resp->sta_id;
 	tid = ba_resp->tid;
 	agg = &priv->stations[sta_id].tid[tid].agg;
+	if (unlikely(agg->txq_id != scd_flow)) {
+		IWL_ERR(priv, "BA scd_flow %d does not match txq_id %d\n",
+			scd_flow, agg->txq_id);
+		return;
+	}
 
 	/* Find index just before block-ack window */
 	index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);

@@ -211,6 +211,7 @@ static struct iwl_lib_ops iwl1000_lib =
 		.set_ct_kill = iwl1000_set_ct_threshold,
 	 },
 	.add_bcast_station = iwl_add_bcast_station,
+	.recover_from_tx_stall = iwl_bg_monitor_recover,
 };
 
 static const struct iwl_ops iwl1000_ops = {

@@ -248,6 +249,7 @@ struct iwl_cfg iwl1000_bgn_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl1000_bg_cfg = {

@@ -276,6 +278,7 @@ struct iwl_cfg iwl1000_bg_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));

@@ -2827,6 +2827,7 @@ static struct iwl_cfg iwl3945_bg_cfg = {
 	.led_compensation = 64,
 	.broken_powersave = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 static struct iwl_cfg iwl3945_abg_cfg = {

@@ -2845,6 +2846,7 @@ static struct iwl_cfg iwl3945_abg_cfg =
 	.led_compensation = 64,
 	.broken_powersave = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 DEFINE_PCI_DEVICE_TABLE(iwl3945_hw_card_ids) = {

@@ -2251,6 +2251,7 @@ struct iwl_cfg iwl4965_agn_cfg = {
 	.led_compensation = 61,
 	.chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 /* Module firmware */

@@ -1500,6 +1500,7 @@ struct iwl_lib_ops iwl5000_lib = {
 		.set_ct_kill = iwl5000_set_ct_threshold,
 	 },
 	.add_bcast_station = iwl_add_bcast_station,
+	.recover_from_tx_stall = iwl_bg_monitor_recover,
 };
 
 static struct iwl_lib_ops iwl5150_lib = {

@@ -1554,6 +1555,7 @@ static struct iwl_lib_ops iwl5150_lib =
 		.set_ct_kill = iwl5150_set_ct_threshold,
 	 },
 	.add_bcast_station = iwl_add_bcast_station,
+	.recover_from_tx_stall = iwl_bg_monitor_recover,
 };
 
 static const struct iwl_ops iwl5000_ops = {

@@ -1603,6 +1605,7 @@ struct iwl_cfg iwl5300_agn_cfg = {
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl5100_bgn_cfg = {

@@ -1629,6 +1632,7 @@ struct iwl_cfg iwl5100_bgn_cfg = {
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl5100_abg_cfg = {

@@ -1653,6 +1657,7 @@ struct iwl_cfg iwl5100_abg_cfg = {
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl5100_agn_cfg = {

@@ -1679,6 +1684,7 @@ struct iwl_cfg iwl5100_agn_cfg = {
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl5350_agn_cfg = {

@@ -1705,6 +1711,7 @@ struct iwl_cfg iwl5350_agn_cfg = {
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl5150_agn_cfg = {

@@ -1731,6 +1738,7 @@ struct iwl_cfg iwl5150_agn_cfg = {
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl5150_abg_cfg = {

@@ -1755,6 +1763,7 @@ struct iwl_cfg iwl5150_abg_cfg = {
 	.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));

@@ -277,6 +277,7 @@ static struct iwl_lib_ops iwl6000_lib =
 		.set_ct_kill = iwl6000_set_ct_threshold,
 	 },
 	.add_bcast_station = iwl_add_bcast_station,
+	.recover_from_tx_stall = iwl_bg_monitor_recover,
 };
 
 static const struct iwl_ops iwl6000_ops = {

@@ -342,6 +343,7 @@ static struct iwl_lib_ops iwl6050_lib =
 		.set_calib_version = iwl6050_set_calib_version,
 	 },
 	.add_bcast_station = iwl_add_bcast_station,
+	.recover_from_tx_stall = iwl_bg_monitor_recover,
 };
 
 static const struct iwl_ops iwl6050_ops = {

@@ -385,6 +387,7 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl6000i_2abg_cfg = {

@@ -416,6 +419,7 @@ struct iwl_cfg iwl6000i_2abg_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl6000i_2bg_cfg = {

@@ -447,6 +451,7 @@ struct iwl_cfg iwl6000i_2bg_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl6050_2agn_cfg = {

@@ -479,6 +484,7 @@ struct iwl_cfg iwl6050_2agn_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 	.chain_noise_scale = 1500,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl6050_2abg_cfg = {

@@ -510,6 +516,7 @@ struct iwl_cfg iwl6050_2abg_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 	.chain_noise_scale = 1500,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 struct iwl_cfg iwl6000_3agn_cfg = {

@@ -542,6 +549,7 @@ struct iwl_cfg iwl6000_3agn_cfg = {
 	.support_ct_kill_exit = true,
 	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
 	.chain_noise_scale = 1000,
+	.monitor_recover_period = IWL_MONITORING_PERIOD,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));

@@ -2106,6 +2106,13 @@ static void iwl_alive_start(struct iwl_p
 	/* After the ALIVE response, we can send host commands to the uCode */
 	set_bit(STATUS_ALIVE, &priv->status);
 
+	if (priv->cfg->ops->lib->recover_from_tx_stall) {
+		/* Enable timer to monitor the driver queues */
+		mod_timer(&priv->monitor_recover,
+			jiffies +
+			msecs_to_jiffies(priv->cfg->monitor_recover_period));
+	}
+
 	if (iwl_is_rfkill(priv))
 		return;
 

@@ -3316,6 +3323,13 @@ static void iwl_setup_deferred_work(stru
 	priv->ucode_trace.data = (unsigned long)priv;
 	priv->ucode_trace.function = iwl_bg_ucode_trace;
 
+	if (priv->cfg->ops->lib->recover_from_tx_stall) {
+		init_timer(&priv->monitor_recover);
+		priv->monitor_recover.data = (unsigned long)priv;
+		priv->monitor_recover.function =
+			priv->cfg->ops->lib->recover_from_tx_stall;
+	}
+
 	if (!priv->cfg->use_isr_legacy)
 		tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
 			iwl_irq_tasklet, (unsigned long)priv);

@@ -3336,6 +3350,8 @@ static void iwl_cancel_deferred_work(str
 	cancel_work_sync(&priv->beacon_update);
 	del_timer_sync(&priv->statistics_periodic);
 	del_timer_sync(&priv->ucode_trace);
+	if (priv->cfg->ops->lib->recover_from_tx_stall)
+		del_timer_sync(&priv->monitor_recover);
 }
 
 static void iwl_init_hw_rates(struct iwl_priv *priv,

99 lines not on this page · raw message

@@ -191,6 +191,8 @@ struct iwl_lib_ops {
 	struct iwl_temp_ops temp_ops;
 	/* station management */
 	void (*add_bcast_station)(struct iwl_priv *priv);
+	/* recover from tx queue stall */
+	void (*recover_from_tx_stall)(unsigned long data);
 };
 
 struct iwl_led_ops {

@@ -295,6 +297,8 @@ struct iwl_cfg {
 	const bool support_wimax_coexist;
 	u8 plcp_delta_threshold;
 	s32 chain_noise_scale;
+	/* timer period for monitor the driver queues */
+	u32 monitor_recover_period;
 };
 
 /***************************

@@ -577,6 +581,9 @@ static inline u16 iwl_pcie_link_ctl(stru
 	pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 	return pci_lnk_ctl;
 }
+
+void iwl_bg_monitor_recover(unsigned long data);
+
 #ifdef CONFIG_PM
 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 int iwl_pci_resume(struct pci_dev *pdev);

@@ -183,6 +183,10 @@ struct iwl_queue {
 	int n_bd;              /* number of BDs in this queue */
 	int write_ptr;       /* 1-st empty entry (index) host_w*/
 	int read_ptr;         /* last used entry (index) host_r*/
+	/* use for monitoring and recovering the stuck queue */
+	int last_read_ptr;      /* storing the last read_ptr */
+	/* number of time read_ptr and last_read_ptr are the same */
+	u8 repeat_same_read_ptr;
 	dma_addr_t dma_addr;   /* physical addr for BD's */
 	int n_window;	       /* safe queue window */
 	u32 id;

@@ -1039,6 +1043,11 @@ struct iwl_event_log {
 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
 
+/* timer constants use to monitor and recover stuck tx queues in mSecs */
+#define IWL_MONITORING_PERIOD  (1000)
+#define IWL_ONE_HUNDRED_MSECS   (100)
+#define IWL_SIXTY_SECS          (60000)
+
 enum iwl_reset {
 	IWL_RF_RESET = 0,
 	IWL_FW_RESET,

@@ -1339,6 +1348,7 @@ struct iwl_priv {
 	struct work_struct run_time_calib_work;
 	struct timer_list statistics_periodic;
 	struct timer_list ucode_trace;
+	struct timer_list monitor_recover;
 	bool hw_ready;
 	/*For 3945*/
 #define IWL_DEFAULT_TX_POWER 0x0F

@@ -310,6 +310,8 @@ static int iwl_queue_init(struct iwl_pri
 		q->high_mark = 2;
 
 	q->write_ptr = q->read_ptr = 0;
+	q->last_read_ptr = 0;
+	q->repeat_same_read_ptr = 0;
 
 	return 0;
 }

@@ -2513,6 +2513,13 @@ static void iwl3945_alive_start(struct i
 	/* After the ALIVE response, we can send commands to 3945 uCode */
 	set_bit(STATUS_ALIVE, &priv->status);
 
+	if (priv->cfg->ops->lib->recover_from_tx_stall) {
+		/* Enable timer to monitor the driver queues */
+		mod_timer(&priv->monitor_recover,
+			jiffies +
+			msecs_to_jiffies(priv->cfg->monitor_recover_period));
+	}
+
 	if (iwl_is_rfkill(priv))
 		return;
 

@@ -3783,6 +3790,13 @@ static void iwl3945_setup_deferred_work(
 
 	iwl3945_hw_setup_deferred_work(priv);
 
+	if (priv->cfg->ops->lib->recover_from_tx_stall) {
+		init_timer(&priv->monitor_recover);
+		priv->monitor_recover.data = (unsigned long)priv;
+		priv->monitor_recover.function =
+			priv->cfg->ops->lib->recover_from_tx_stall;
+	}
+
 	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
 		     iwl3945_irq_tasklet, (unsigned long)priv);
 }

@@ -3795,6 +3809,8 @@ static void iwl3945_cancel_deferred_work
 	cancel_delayed_work(&priv->scan_check);
 	cancel_delayed_work(&priv->alive_start);
 	cancel_work_sync(&priv->beacon_update);
+	if (priv->cfg->ops->lib->recover_from_tx_stall)
+		del_timer_sync(&priv->monitor_recover);
 }
 
 static struct attribute *iwl3945_sysfs_entries[] = {

@@ -2792,6 +2792,7 @@ static struct iwl_lib_ops iwl3945_lib =
 	.isr = iwl_isr_legacy,
 	.config_ap = iwl3945_config_ap,
 	.add_bcast_station = iwl3945_add_bcast_station,
+	.recover_from_tx_stall = iwl_bg_monitor_recover,
 };
 
 static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {

@@ -1318,7 +1318,7 @@ static unsigned int *reloc_location(stru
 	int section = sechdr->sh_info;
 
 	return (void *)elf->hdr + sechdrs[section].sh_offset +
-		(r->r_offset - sechdrs[section].sh_addr);
+		r->r_offset - sechdrs[section].sh_addr;
 }
 
 static int addend_386_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)

@@ -90,6 +90,9 @@ acpi_status acpi_hw_write_port(acpi_io_a
 /*
  * hwgpe - GPE support
  */
+u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
+			     struct acpi_gpe_register_info *gpe_register_info);
+
 acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
 
 acpi_status

@@ -68,7 +68,7 @@ acpi_status
 acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
 {
 	struct acpi_gpe_register_info *gpe_register_info;
-	u8 register_bit;
+	u32 register_bit;
 
 	ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks);
 

@@ -77,9 +77,8 @@ acpi_ev_update_gpe_enable_masks(struct a
 		return_ACPI_STATUS(AE_NOT_EXIST);
 	}
 
-	register_bit = (u8)
-	    (1 <<
-	     (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number));
+	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
+						gpe_register_info);
 
 	ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, register_bit);
 	ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);

98 lines not on this page · raw message

@@ -78,10 +78,6 @@ acpi_ev_queue_notify_request(struct acpi
 acpi_status
 acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info);
 
-acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);
-
-acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
-
 struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
 						       u32 gpe_number);
 

@@ -93,7 +93,8 @@ acpi_status acpi_hw_write_port(acpi_io_a
 u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
 			     struct acpi_gpe_register_info *gpe_register_info);
 
-acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
+acpi_status
+acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action);
 
 acpi_status
 acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info);

102 lines not on this page · raw message

106 lines not on this page · raw message

@@ -78,23 +78,27 @@ u32 acpi_hw_gpe_register_bit(struct acpi
 
 /******************************************************************************
  *
- * FUNCTION:	acpi_hw_low_disable_gpe
+ * FUNCTION:	acpi_hw_low_set_gpe
  *
  * PARAMETERS:	gpe_event_info	    - Info block for the GPE to be disabled
+ *		action		    - Enable or disable
  *
  * RETURN:	Status
  *
- * DESCRIPTION: Disable a single GPE in the enable register.
+ * DESCRIPTION: Enable or disable a single GPE in its enable register.
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
+acpi_status
+acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action)
 {
 	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
 	u32 enable_mask;
 	u32 register_bit;
 
+	ACPI_FUNCTION_ENTRY();
+
 	/* Get the info block for the entire GPE register */
 
 	gpe_register_info = gpe_event_info->register_info;

@@ -109,11 +113,23 @@ acpi_status acpi_hw_low_disable_gpe(stru
 		return (status);
 	}
 
-	/* Clear just the bit that corresponds to this GPE */
+	/* Set or clear just the bit that corresponds to this GPE */
 
 	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
 						gpe_register_info);
-	ACPI_CLEAR_BIT(enable_mask, register_bit);
+	switch (action) {
+	case ACPI_GPE_ENABLE:
+		ACPI_SET_BIT(enable_mask, register_bit);
+		break;
+
+	case ACPI_GPE_DISABLE:
+		ACPI_CLEAR_BIT(enable_mask, register_bit);
+		break;
+
+	default:
+		ACPI_ERROR((AE_INFO, "Invalid action\n"));
+		return (AE_BAD_PARAMETER);
+	}
 
 	/* Write the updated enable mask */
 

@@ -87,7 +87,7 @@
 #define AE_NO_GLOBAL_LOCK               (acpi_status) (0x0017 | AE_CODE_ENVIRONMENTAL)
 #define AE_ABORT_METHOD                 (acpi_status) (0x0018 | AE_CODE_ENVIRONMENTAL)
 #define AE_SAME_HANDLER                 (acpi_status) (0x0019 | AE_CODE_ENVIRONMENTAL)
-#define AE_WAKE_ONLY_GPE                (acpi_status) (0x001A | AE_CODE_ENVIRONMENTAL)
+#define AE_NO_HANDLER                   (acpi_status) (0x001A | AE_CODE_ENVIRONMENTAL)
 #define AE_OWNER_ID_LIMIT               (acpi_status) (0x001B | AE_CODE_ENVIRONMENTAL)
 
 #define AE_CODE_ENV_MAX                 0x001B

@@ -118,6 +118,10 @@ acpi_hw_low_set_gpe(struct acpi_gpe_even
 	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
 						gpe_register_info);
 	switch (action) {
+	case ACPI_GPE_COND_ENABLE:
+		if (!(register_bit & gpe_register_info->enable_for_run))
+			return (AE_BAD_PARAMETER);
+
 	case ACPI_GPE_ENABLE:
 		ACPI_SET_BIT(enable_mask, register_bit);
 		break;

@@ -154,23 +158,11 @@ acpi_hw_low_set_gpe(struct acpi_gpe_even
 acpi_status
 acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info)
 {
-	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
 
 	ACPI_FUNCTION_ENTRY();
 
-	/* Get the info block for the entire GPE register */
-
-	gpe_register_info = gpe_event_info->register_info;
-	if (!gpe_register_info) {
-		return (AE_NOT_EXIST);
-	}
-
-	/* Write the entire GPE (runtime) enable register */
-
-	status = acpi_hw_write(gpe_register_info->enable_for_run,
-			       &gpe_register_info->enable_address);
-
+	status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_COND_ENABLE);
 	return (status);
 }
 

@@ -665,6 +665,7 @@ typedef u32 acpi_event_status;
 
 #define ACPI_GPE_ENABLE                 0
 #define ACPI_GPE_DISABLE                1
+#define ACPI_GPE_COND_ENABLE            2
 
 /*
  * GPE info flags - Per GPE

@@ -1023,6 +1023,19 @@ acpi_ev_initialize_gpe_block(struct acpi
 			/* Get the info block for this particular GPE */
 			gpe_index = (acpi_size)i * ACPI_GPE_REGISTER_WIDTH + j;
 			gpe_event_info = &gpe_block->event_info[gpe_index];
+			gpe_number = gpe_index + gpe_block->block_base_number;
+
+			/*
+			 * If the GPE has already been enabled for runtime
+			 * signaling, make sure it remains enabled, but do not
+			 * increment its reference counter.
+			 */
+			if (gpe_event_info->runtime_count) {
+				acpi_set_gpe(gpe_device, gpe_number,
+						ACPI_GPE_ENABLE);
+				gpe_enabled_count++;
+				continue;
+			}
 
 			if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) {
 				wake_gpe_count++;

@@ -1033,7 +1046,6 @@ acpi_ev_initialize_gpe_block(struct acpi
 			if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD))
 				continue;
 
-			gpe_number = gpe_index + gpe_block->block_base_number;
 			status = acpi_enable_gpe(gpe_device, gpe_number,
 						ACPI_GPE_TYPE_RUNTIME);
 			if (ACPI_FAILURE(status))

@@ -389,10 +389,12 @@ static ssize_t counter_set(struct kobjec
 	if (index < num_gpes) {
 		if (!strcmp(buf, "disable\n") &&
 				(status & ACPI_EVENT_FLAG_ENABLED))
-			result = acpi_set_gpe(handle, index, ACPI_GPE_DISABLE);
+			result = acpi_disable_gpe(handle, index,
+						ACPI_GPE_TYPE_RUNTIME);
 		else if (!strcmp(buf, "enable\n") &&
 				!(status & ACPI_EVENT_FLAG_ENABLED))
-			result = acpi_set_gpe(handle, index, ACPI_GPE_ENABLE);
+			result = acpi_enable_gpe(handle, index,
+						ACPI_GPE_TYPE_RUNTIME);
 		else if (!strcmp(buf, "clear\n") &&
 				(status & ACPI_EVENT_FLAG_SET))
 			result = acpi_clear_gpe(handle, index, ACPI_NOT_ISR);

@@ -121,7 +121,7 @@ static inline void down_spin(struct spin
 	ia64_invala();
 
 	for (;;) {
-		asm volatile ("ld4.c.nc %0=[%1]" : "=r"(serve) : "r"(&ss->serve) : "memory");
+		asm volatile ("ld8.c.nc %0=[%1]" : "=r"(serve) : "r"(&ss->serve) : "memory");
 		if (time_before(t, serve))
 			return;
 		cpu_relax();

@@ -31,9 +31,9 @@ static struct mutex ecryptfs_msg_ctx_lis
 
 static struct hlist_head *ecryptfs_daemon_hash;
 struct mutex ecryptfs_daemon_hash_mux;
-static int ecryptfs_hash_buckets;
+static int ecryptfs_hash_bits;
 #define ecryptfs_uid_hash(uid) \
-        hash_long((unsigned long)uid, ecryptfs_hash_buckets)
+        hash_long((unsigned long)uid, ecryptfs_hash_bits)
 
 static u32 ecryptfs_msg_counter;
 static struct ecryptfs_msg_ctx *ecryptfs_msg_ctx_arr;

@@ -486,18 +486,19 @@ int ecryptfs_init_messaging(void)
 	}
 	mutex_init(&ecryptfs_daemon_hash_mux);
 	mutex_lock(&ecryptfs_daemon_hash_mux);
-	ecryptfs_hash_buckets = 1;
-	while (ecryptfs_number_of_users >> ecryptfs_hash_buckets)
-		ecryptfs_hash_buckets++;
+	ecryptfs_hash_bits = 1;
+	while (ecryptfs_number_of_users >> ecryptfs_hash_bits)
+		ecryptfs_hash_bits++;
 	ecryptfs_daemon_hash = kmalloc((sizeof(struct hlist_head)
-					* ecryptfs_hash_buckets), GFP_KERNEL);
+					* (1 << ecryptfs_hash_bits)),
+				       GFP_KERNEL);
 	if (!ecryptfs_daemon_hash) {
 		rc = -ENOMEM;
 		printk(KERN_ERR "%s: Failed to allocate memory\n", __func__);
 		mutex_unlock(&ecryptfs_daemon_hash_mux);
 		goto out;
 	}
-	for (i = 0; i < ecryptfs_hash_buckets; i++)
+	for (i = 0; i < (1 << ecryptfs_hash_bits); i++)
 		INIT_HLIST_HEAD(&ecryptfs_daemon_hash[i]);
 	mutex_unlock(&ecryptfs_daemon_hash_mux);
 	ecryptfs_msg_ctx_arr = kmalloc((sizeof(struct ecryptfs_msg_ctx)

@@ -554,7 +555,7 @@ void ecryptfs_release_messaging(void)
 		int i;
 
 		mutex_lock(&ecryptfs_daemon_hash_mux);
-		for (i = 0; i < ecryptfs_hash_buckets; i++) {
+		for (i = 0; i < (1 << ecryptfs_hash_bits); i++) {
 			int rc;
 
 			hlist_for_each_entry(daemon, elem,

@@ -1366,6 +1366,7 @@ static int __devinit pcmcia_bus_add_sock
 	INIT_LIST_HEAD(&socket->devices_list);
 	memset(&socket->pcmcia_state, 0, sizeof(u8));
 	socket->device_count = 0;
+	atomic_set(&socket->present, 0);
 
 	ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback);
 	if (ret) {

@@ -1374,8 +1375,6 @@ static int __devinit pcmcia_bus_add_sock
 		return ret;
 	}
 
-	atomic_set(&socket->present, 0);
-
 	return 0;
 }
 

@@ -67,8 +67,6 @@ static void mtx1_power_off(void)
 
 void __init board_setup(void)
 {
-	alchemy_gpio2_enable();
-
 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 	/* Enable USB power switch */
 	alchemy_gpio_direction_output(204, 0);

@@ -117,11 +115,11 @@ mtx1_pci_idsel(unsigned int devsel, int
 
 	if (assert && devsel != 0)
 		/* Suppress signal to Cardbus */
-		gpio_set_value(1, 0);	/* set EXT_IO3 OFF */
+		alchemy_gpio_set_value(1, 0);	/* set EXT_IO3 OFF */
 	else
-		gpio_set_value(1, 1);	/* set EXT_IO3 ON */
+		alchemy_gpio_set_value(1, 1);	/* set EXT_IO3 ON */
 
-	au_sync_udelay(1);
+	udelay(1);
 	return 1;
 }
 

@@ -1019,12 +1019,15 @@ static int usbhid_start(struct hid_devic
 	/* Some keyboards don't work until their LEDs have been set.
 	 * Since BIOSes do set the LEDs, it must be safe for any device
 	 * that supports the keyboard boot protocol.
+	 * In addition, enable remote wakeup by default for all keyboard
+	 * devices supporting the boot protocol.
 	 */
 	if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT &&
 			interface->desc.bInterfaceProtocol ==
-				USB_INTERFACE_PROTOCOL_KEYBOARD)
+				USB_INTERFACE_PROTOCOL_KEYBOARD) {
 		usbhid_set_leds(hid);
-
+		device_set_wakeup_enable(&dev->dev, 1);
+	}
 	return 0;
 
 fail:

@@ -313,6 +313,7 @@ static int usb_kbd_probe(struct usb_inte
 		goto fail2;
 
 	usb_set_intfdata(iface, kbd);
+	device_set_wakeup_enable(&dev->dev, 1);
 	return 0;
 
 fail2:	

@@ -124,6 +124,7 @@ int ath5k_hw_attach(struct ath5k_softc *
 	ah->ah_cw_min = AR5K_TUNE_CWMIN;
 	ah->ah_limit_tx_retries = AR5K_INIT_TX_RETRY;
 	ah->ah_software_retry = false;
+	ah->ah_current_channel = &sc->channels[0];
 
 	/*
 	 * Find the mac version

@@ -192,10 +192,10 @@ static int board_keymap[] = {
 	KEY(4, 4, KEY_LEFTCTRL),
 	KEY(4, 5, KEY_RIGHTALT),
 	KEY(4, 6, KEY_LEFTSHIFT),
-	KEY(4, 8, KEY_10),
+	KEY(4, 8, KEY_F10),
 
 	KEY(5, 0, KEY_Y),
-	KEY(5, 8, KEY_11),
+	KEY(5, 8, KEY_F11),
 
 	KEY(6, 0, KEY_U),
 

@@ -708,7 +708,7 @@ static int ocfs2_xattr_extend_allocation
 					 struct ocfs2_xattr_value_buf *vb,
 					 struct ocfs2_xattr_set_ctxt *ctxt)
 {
-	int status = 0;
+	int status = 0, credits;
 	handle_t *handle = ctxt->handle;
 	enum ocfs2_alloc_restarted why;
 	u32 prev_clusters, logical_start = le32_to_cpu(vb->vb_xv->xr_clusters);

@@ -718,43 +718,59 @@ static int ocfs2_xattr_extend_allocation
 
 	ocfs2_init_xattr_value_extent_tree(&et, INODE_CACHE(inode), vb);
 
-	status = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
-			      OCFS2_JOURNAL_ACCESS_WRITE);
-	if (status < 0) {
-		mlog_errno(status);
-		goto leave;
+	while (clusters_to_add) {
+		status = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
+				       OCFS2_JOURNAL_ACCESS_WRITE);
+		if (status < 0) {
+			mlog_errno(status);
+			break;
+		}
+
+		prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
+		status = ocfs2_add_clusters_in_btree(handle,
+						     &et,
+						     &logical_start,
+						     clusters_to_add,
+						     0,
+						     ctxt->data_ac,
+						     ctxt->meta_ac,
+						     &why);
+		if ((status < 0) && (status != -EAGAIN)) {
+			if (status != -ENOSPC)
+				mlog_errno(status);
+			break;
+		}
+
+		status = ocfs2_journal_dirty(handle, vb->vb_bh);
+		if (status < 0) {
+			mlog_errno(status);
+			break;
+		}
+
+		clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) -
+					 prev_clusters;
+
+		if (why != RESTART_NONE && clusters_to_add) {
+			/*
+			 * We can only fail in case the alloc file doesn't give
+			 * up enough clusters.
+			 */
+			BUG_ON(why == RESTART_META);
+
+			mlog(0, "restarting xattr value extension for %u"
+			     " clusters,.\n", clusters_to_add);
+			credits = ocfs2_calc_extend_credits(inode->i_sb,
+							    &vb->vb_xv->xr_list,
+							    clusters_to_add);
+			status = ocfs2_extend_trans(handle, credits);
+			if (status < 0) {
+				status = -ENOMEM;
+				mlog_errno(status);
+				break;
+			}
+		}
 	}
 
-	prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
-	status = ocfs2_add_clusters_in_btree(handle,
-					     &et,
-					     &logical_start,
-					     clusters_to_add,
-					     0,
-					     ctxt->data_ac,
-					     ctxt->meta_ac,
-					     &why);
-	if (status < 0) {
-		mlog_errno(status);
-		goto leave;
-	}
-
-	status = ocfs2_journal_dirty(handle, vb->vb_bh);
-	if (status < 0) {
-		mlog_errno(status);
-		goto leave;
-	}
-
-	clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) - prev_clusters;
-
-	/*
-	 * We should have already allocated enough space before the transaction,
-	 * so no need to restart.
-	 */
-	BUG_ON(why != RESTART_NONE || clusters_to_add);
-
-leave:
-
 	return status;
 }
 

@@ -223,7 +223,7 @@ static bool processor_physically_present
 	type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0;
 	cpuid = acpi_get_cpuid(handle, type, acpi_id);
 
-	if (cpuid == -1)
+	if ((cpuid == -1) && (num_possible_cpus() > 1))
 		return false;
 
 	return true;

@@ -52,6 +52,10 @@ struct hdmi_spec {
 	 */
 	struct hda_multi_out multiout;
 	unsigned int codec_type;
+
+	/* misc flags */
+	/* PD bit indicates only the update, not the current state */
+	unsigned int old_pin_detect:1;
 };
 
 

@@ -616,6 +620,9 @@ static void hdmi_setup_audio_infoframe(s
  * Unsolicited events
  */
 
+static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid,
+			       struct hdmi_eld *eld);
+
 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
 {
 	struct hdmi_spec *spec = codec->spec;

@@ -632,6 +639,12 @@ static void hdmi_intrinsic_event(struct
 	if (index < 0)
 		return;
 
+	if (spec->old_pin_detect) {
+		if (pind)
+			hdmi_present_sense(codec, tag, &spec->sink_eld[index]);
+		pind = spec->sink_eld[index].monitor_present;
+	}
+
 	spec->sink_eld[index].monitor_present = pind;
 	spec->sink_eld[index].eld_valid = eldv;
 

@@ -478,6 +478,7 @@ static int patch_nvhdmi_8ch_89(struct hd
 
 	codec->spec = spec;
 	spec->codec_type = HDA_CODEC_NVIDIA_MCP89;
+	spec->old_pin_detect = 1;
 
 	if (hdmi_parse_codec(codec) < 0) {
 		codec->spec = NULL;

@@ -508,6 +509,7 @@ static int patch_nvhdmi_8ch_7x(struct hd
 	spec->multiout.max_channels = 8;
 	spec->multiout.dig_out_nid = nvhdmi_master_con_nid_7x;
 	spec->codec_type = HDA_CODEC_NVIDIA_MCP7X;
+	spec->old_pin_detect = 1;
 
 	codec->patch_ops = nvhdmi_patch_ops_8ch_7x;
 

@@ -528,6 +530,7 @@ static int patch_nvhdmi_2ch(struct hda_c
 	spec->multiout.max_channels = 2;
 	spec->multiout.dig_out_nid = nvhdmi_master_con_nid_7x;
 	spec->codec_type = HDA_CODEC_NVIDIA_MCP7X;
+	spec->old_pin_detect = 1;
 
 	codec->patch_ops = nvhdmi_patch_ops_2ch;
 

@@ -2687,6 +2687,7 @@
 
 #define PCH_PP_STATUS		0xc7200
 #define PCH_PP_CONTROL		0xc7204
+#define  PANEL_UNLOCK_REGS	(0xabcd << 16)
 #define  EDP_FORCE_VDD		(1 << 3)
 #define  EDP_BLC_ENABLE		(1 << 2)
 #define  PANEL_POWER_RESET	(1 << 1)

@@ -3950,7 +3950,8 @@ static void intel_increase_pllclock(stru
 		DRM_DEBUG_DRIVER("upclocking LVDS\n");
 
 		/* Unlock panel regs */
-		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16));
+		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) |
+			   PANEL_UNLOCK_REGS);
 
 		dpll &= ~DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);

@@ -3993,7 +3994,8 @@ static void intel_decrease_pllclock(stru
 		DRM_DEBUG_DRIVER("downclocking LVDS\n");
 
 		/* Unlock panel regs */
-		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | (0xabcd << 16));
+		I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) |
+			   PANEL_UNLOCK_REGS);
 
 		dpll |= DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);

@@ -677,6 +677,51 @@ intel_dp_mode_set(struct drm_encoder *en
 	}
 }
 
+static void ironlake_edp_panel_on (struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	unsigned long timeout = jiffies + msecs_to_jiffies(5000);
+	u32 pp, pp_status;
+
+	pp_status = I915_READ(PCH_PP_STATUS);
+	if (pp_status & PP_ON)
+		return;
+
+	pp = I915_READ(PCH_PP_CONTROL);
+	pp |= PANEL_UNLOCK_REGS | POWER_TARGET_ON;
+	I915_WRITE(PCH_PP_CONTROL, pp);
+	do {
+		pp_status = I915_READ(PCH_PP_STATUS);
+	} while (((pp_status & PP_ON) == 0) && !time_after(jiffies, timeout));
+
+	if (time_after(jiffies, timeout))
+		DRM_DEBUG_KMS("panel on wait timed out: 0x%08x\n", pp_status);
+
+	pp &= ~(PANEL_UNLOCK_REGS | EDP_FORCE_VDD);
+	I915_WRITE(PCH_PP_CONTROL, pp);
+}
+
+static void ironlake_edp_panel_off (struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	unsigned long timeout = jiffies + msecs_to_jiffies(5000);
+	u32 pp, pp_status;
+
+	pp = I915_READ(PCH_PP_CONTROL);
+	pp &= ~POWER_TARGET_ON;
+	I915_WRITE(PCH_PP_CONTROL, pp);
+	do {
+		pp_status = I915_READ(PCH_PP_STATUS);
+	} while ((pp_status & PP_ON) && !time_after(jiffies, timeout));
+
+	if (time_after(jiffies, timeout))
+		DRM_DEBUG_KMS("panel off wait timed out\n");
+
+	/* Make sure VDD is enabled so DP AUX will work */
+	pp |= EDP_FORCE_VDD;
+	I915_WRITE(PCH_PP_CONTROL, pp);
+}
+
 static void ironlake_edp_backlight_on (struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;

@@ -711,14 +756,18 @@ intel_dp_dpms(struct drm_encoder *encode
 	if (mode != DRM_MODE_DPMS_ON) {
 		if (dp_reg & DP_PORT_EN) {
 			intel_dp_link_down(intel_encoder, dp_priv->DP);
-			if (IS_eDP(intel_encoder))
+			if (IS_eDP(intel_encoder)) {
+				ironlake_edp_backlight_off(dev);
 				ironlake_edp_backlight_off(dev);
+			}
 		}
 	} else {
 		if (!(dp_reg & DP_PORT_EN)) {
 			intel_dp_link_train(intel_encoder, dp_priv->DP, dp_priv->link_configuration);
-			if (IS_eDP(intel_encoder))
+			if (IS_eDP(intel_encoder)) {
+				ironlake_edp_panel_on(dev);
 				ironlake_edp_backlight_on(dev);
+			}
 		}
 	}
 	dp_priv->dpms_mode = mode;

@@ -758,7 +758,7 @@ intel_dp_dpms(struct drm_encoder *encode
 			intel_dp_link_down(intel_encoder, dp_priv->DP);
 			if (IS_eDP(intel_encoder)) {
 				ironlake_edp_backlight_off(dev);
-				ironlake_edp_backlight_off(dev);
+				ironlake_edp_panel_off(dev);
 			}
 		}
 	} else {