Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 53 insertions, 75 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 23ffb1b9a86..c79e6638c88 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -580,22 +580,14 @@ void b43_tsf_read(struct b43_wldev *dev, u64 *tsf)
 
 static void b43_time_lock(struct b43_wldev *dev)
 {
-	u32 macctl;
-
-	macctl = b43_read32(dev, B43_MMIO_MACCTL);
-	macctl |= B43_MACCTL_TBTTHOLD;
-	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_TBTTHOLD);
 	/* Commit the write */
 	b43_read32(dev, B43_MMIO_MACCTL);
 }
 
 static void b43_time_unlock(struct b43_wldev *dev)
 {
-	u32 macctl;
-
-	macctl = b43_read32(dev, B43_MMIO_MACCTL);
-	macctl &= ~B43_MACCTL_TBTTHOLD;
-	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_TBTTHOLD, 0);
 	/* Commit the write */
 	b43_read32(dev, B43_MMIO_MACCTL);
 }
@@ -2398,8 +2390,14 @@ error:
 	return err;
 }
 
-static int b43_request_firmware(struct b43_wldev *dev)
+static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl);
+static void b43_one_core_detach(struct b43_bus_dev *dev);
+
+static void b43_request_firmware(struct work_struct *work)
 {
+	struct b43_wl *wl = container_of(work,
+			    struct b43_wl, firmware_load);
+	struct b43_wldev *dev = wl->current_dev;
 	struct b43_request_fw_context *ctx;
 	unsigned int i;
 	int err;
@@ -2407,23 +2405,23 @@ static int b43_request_firmware(struct b43_wldev *dev)
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
-		return -ENOMEM;
+		return;
 	ctx->dev = dev;
 
 	ctx->req_type = B43_FWTYPE_PROPRIETARY;
 	err = b43_try_request_fw(ctx);
 	if (!err)
-		goto out; /* Successfully loaded it. */
-	err = ctx->fatal_failure;
-	if (err)
+		goto start_ieee80211; /* Successfully loaded it. */
+	/* Was fw version known? */
+	if (ctx->fatal_failure)
 		goto out;
 
+	/* proprietary fw not found, try open source */
 	ctx->req_type = B43_FWTYPE_OPENSOURCE;
 	err = b43_try_request_fw(ctx);
 	if (!err)
-		goto out; /* Successfully loaded it. */
-	err = ctx->fatal_failure;
-	if (err)
+		goto start_ieee80211; /* Successfully loaded it. */
+	if(ctx->fatal_failure)
 		goto out;
 
 	/* Could not find a usable firmware. Print the errors. */
@@ -2433,11 +2431,20 @@ static int b43_request_firmware(struct b43_wldev *dev)
 			b43err(dev->wl, errmsg);
 	}
 	b43_print_fw_helptext(dev->wl, 1);
-	err = -ENOENT;
+	goto out;
+
+start_ieee80211:
+	err = ieee80211_register_hw(wl->hw);
+	if (err)
+		goto err_one_core_detach;
+	b43_leds_register(wl->current_dev);
+	goto out;
+
+err_one_core_detach:
+	b43_one_core_detach(dev->dev);
 
 out:
 	kfree(ctx);
-	return err;
 }
 
 static int b43_upload_microcode(struct b43_wldev *dev)
@@ -2487,10 +2494,8 @@ static int b43_upload_microcode(struct b43_wldev *dev)
 	b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
 
 	/* Start the microcode PSM */
-	macctl = b43_read32(dev, B43_MMIO_MACCTL);
-	macctl &= ~B43_MACCTL_PSM_JMP0;
-	macctl |= B43_MACCTL_PSM_RUN;
-	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_JMP0,
+		      B43_MACCTL_PSM_RUN);
 
 	/* Wait for the microcode to load and respond */
 	i = 0;
@@ -2590,10 +2595,9 @@ static int b43_upload_microcode(struct b43_wldev *dev)
 	return 0;
 
 error:
-	macctl = b43_read32(dev, B43_MMIO_MACCTL);
-	macctl &= ~B43_MACCTL_PSM_RUN;
-	macctl |= B43_MACCTL_PSM_JMP0;
-	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+	/* Stop the microcode PSM. */
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_RUN,
+		      B43_MACCTL_PSM_JMP0);
 
 	return err;
 }
@@ -2708,11 +2712,8 @@ static int b43_gpio_init(struct b43_wldev *dev)
 	struct ssb_device *gpiodev;
 	u32 mask, set;
 
-	b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
-		    & ~B43_MACCTL_GPOUTSMSK);
-
-	b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
-		    | 0x000F);
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_GPOUTSMSK, 0);
+	b43_maskset16(dev, B43_MMIO_GPIO_MASK, ~0, 0xF);
 
 	mask = 0x0000001F;
 	set = 0x0000000F;
@@ -2720,6 +2721,8 @@ static int b43_gpio_init(struct b43_wldev *dev)
 		mask |= 0x0060;
 		set |= 0x0060;
 	}
+	if (dev->dev->chip_id == 0x5354)
+		set &= 0xff02;
 	if (0 /* FIXME: conditional unknown */ ) {
 		b43_write16(dev, B43_MMIO_GPIO_MASK,
 			    b43_read16(dev, B43_MMIO_GPIO_MASK)
@@ -2800,9 +2803,7 @@ void b43_mac_enable(struct b43_wldev *dev)
 	dev->mac_suspended--;
 	B43_WARN_ON(dev->mac_suspended < 0);
 	if (dev->mac_suspended == 0) {
-		b43_write32(dev, B43_MMIO_MACCTL,
-			    b43_read32(dev, B43_MMIO_MACCTL)
-			    | B43_MACCTL_ENABLED);
+		b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_ENABLED);
 		b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
 			    B43_IRQ_MAC_SUSPENDED);
 		/* Commit writes */
@@ -2823,9 +2824,7 @@ void b43_mac_suspend(struct b43_wldev *dev)
 
 	if (dev->mac_suspended == 0) {
 		b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
-		b43_write32(dev, B43_MMIO_MACCTL,
-			    b43_read32(dev, B43_MMIO_MACCTL)
-			    & ~B43_MACCTL_ENABLED);
+		b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_ENABLED, 0);
 		/* force pci to flush the write */
 		b43_read32(dev, B43_MMIO_MACCTL);
 		for (i = 35; i; i--) {
@@ -2931,15 +2930,10 @@ static void b43_adjust_opmode(struct b43_wldev *dev)
 	 *        so always disable it. If we want to implement PMQ,
 	 *        we need to enable it here (clear DISCPMQ) in AP mode.
 	 */
-	if (0  /* ctl & B43_MACCTL_AP */) {
-		b43_write32(dev, B43_MMIO_MACCTL,
-			    b43_read32(dev, B43_MMIO_MACCTL)
-			    & ~B43_MACCTL_DISCPMQ);
-	} else {
-		b43_write32(dev, B43_MMIO_MACCTL,
-			    b43_read32(dev, B43_MMIO_MACCTL)
-			    | B43_MACCTL_DISCPMQ);
-	}
+	if (0  /* ctl & B43_MACCTL_AP */)
+		b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_DISCPMQ, 0);
+	else
+		b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_DISCPMQ);
 }
 
 static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
@@ -3044,9 +3038,6 @@ static int b43_chip_init(struct b43_wldev *dev)
 	macctl |= B43_MACCTL_INFRA;
 	b43_write32(dev, B43_MMIO_MACCTL, macctl);
 
-	err = b43_request_firmware(dev);
-	if (err)
-		goto out;
 	err = b43_upload_microcode(dev);
 	if (err)
 		goto out;	/* firmware is released later */
@@ -3083,10 +3074,8 @@ static int b43_chip_init(struct b43_wldev *dev)
 	if (dev->dev->core_rev < 5)
 		b43_write32(dev, 0x010C, 0x01000000);
 
-	b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
-		    & ~B43_MACCTL_INFRA);
-	b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
-		    | B43_MACCTL_INFRA);
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_INFRA, 0);
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_INFRA);
 
 	/* Probe Response Timeout value */
 	/* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
@@ -4178,6 +4167,7 @@ redo:
 	mutex_unlock(&wl->mutex);
 	cancel_delayed_work_sync(&dev->periodic_work);
 	cancel_work_sync(&wl->tx_work);
+	cancel_work_sync(&wl->firmware_load);
 	mutex_lock(&wl->mutex);
 	dev = wl->current_dev;
 	if (!dev || b43_status(dev) < B43_STAT_STARTED) {
@@ -4564,8 +4554,6 @@ static void b43_set_pretbtt(struct b43_wldev *dev)
 /* Locking: wl->mutex */
 static void b43_wireless_core_exit(struct b43_wldev *dev)
 {
-	u32 macctl;
-
 	B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED);
 	if (!dev || b43_status(dev) != B43_STAT_INITIALIZED)
 		return;
@@ -4576,10 +4564,8 @@ static void b43_wireless_core_exit(struct b43_wldev *dev)
 	b43_set_status(dev, B43_STAT_UNINIT);
 
 	/* Stop the microcode PSM. */
-	macctl = b43_read32(dev, B43_MMIO_MACCTL);
-	macctl &= ~B43_MACCTL_PSM_RUN;
-	macctl |= B43_MACCTL_PSM_JMP0;
-	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+	b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_RUN,
+		      B43_MACCTL_PSM_JMP0);
 
 	b43_dma_free(dev);
 	b43_pio_free(dev);
@@ -5341,16 +5327,13 @@ static int b43_bcma_probe(struct bcma_device *core)
 	if (err)
 		goto bcma_err_wireless_exit;
 
-	err = ieee80211_register_hw(wl->hw);
-	if (err)
-		goto bcma_err_one_core_detach;
-	b43_leds_register(wl->current_dev);
+	/* setup and start work to load firmware */
+	INIT_WORK(&wl->firmware_load, b43_request_firmware);
+	schedule_work(&wl->firmware_load);
 
 bcma_out:
 	return err;
 
-bcma_err_one_core_detach:
-	b43_one_core_detach(dev);
 bcma_err_wireless_exit:
 	ieee80211_free_hw(wl->hw);
 	return err;
@@ -5417,18 +5400,13 @@ int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
 	if (err)
 		goto err_wireless_exit;
 
-	if (first) {
-		err = ieee80211_register_hw(wl->hw);
-		if (err)
-			goto err_one_core_detach;
-		b43_leds_register(wl->current_dev);
-	}
+	/* setup and start work to load firmware */
+	INIT_WORK(&wl->firmware_load, b43_request_firmware);
+	schedule_work(&wl->firmware_load);
 
       out:
 	return err;
 
-      err_one_core_detach:
-	b43_one_core_detach(dev);
       err_wireless_exit:
 	if (first)
 		b43_wireless_exit(dev, wl);