diff options
Diffstat (limited to 'drivers')
77 files changed, 964 insertions, 560 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index a3a13605a9c4..5f601553b9b0 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -835,6 +835,7 @@ config PATA_AT32 config PATA_AT91 tristate "PATA support for AT91SAM9260" depends on ARM && SOC_AT91SAM9 + depends on !ARCH_MULTIPLATFORM help This option enables support for IDE devices on the Atmel AT91SAM9260 SoC. diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 49f1e6890587..33bb06e006c9 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -325,7 +325,6 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(INTEL, 0x9d05), board_ahci }, /* Sunrise Point-LP RAID */ { PCI_VDEVICE(INTEL, 0x9d07), board_ahci }, /* Sunrise Point-LP RAID */ { PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H AHCI */ - { PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H RAID */ { PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */ { PCI_VDEVICE(INTEL, 0xa107), board_ahci }, /* Sunrise Point-H RAID */ { PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */ diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c index feeb8f1e2fe8..cbcd20810355 100644 --- a/drivers/ata/ahci_xgene.c +++ b/drivers/ata/ahci_xgene.c @@ -125,10 +125,11 @@ static int xgene_ahci_restart_engine(struct ata_port *ap) * xgene_ahci_qc_issue - Issue commands to the device * @qc: Command to issue * - * Due to Hardware errata for IDENTIFY DEVICE command, the controller cannot - * clear the BSY bit after receiving the PIO setup FIS. This results in the dma - * state machine goes into the CMFatalErrorUpdate state and locks up. By - * restarting the dma engine, it removes the controller out of lock up state. + * Due to Hardware errata for IDENTIFY DEVICE command and PACKET + * command of ATAPI protocol set, the controller cannot clear the BSY bit + * after receiving the PIO setup FIS. This results in the DMA state machine + * going into the CMFatalErrorUpdate state and locks up. By restarting the + * DMA engine, it removes the controller out of lock up state. */ static unsigned int xgene_ahci_qc_issue(struct ata_queued_cmd *qc) { @@ -137,7 +138,8 @@ static unsigned int xgene_ahci_qc_issue(struct ata_queued_cmd *qc) struct xgene_ahci_context *ctx = hpriv->plat_data; int rc = 0; - if (unlikely(ctx->last_cmd[ap->port_no] == ATA_CMD_ID_ATA)) + if (unlikely((ctx->last_cmd[ap->port_no] == ATA_CMD_ID_ATA) || + (ctx->last_cmd[ap->port_no] == ATA_CMD_PACKET))) xgene_ahci_restart_engine(ap); rc = ahci_qc_issue(qc); @@ -188,7 +190,7 @@ static unsigned int xgene_ahci_read_id(struct ata_device *dev, * * Clear reserved bit 8 (DEVSLP bit) as we don't support DEVSLP */ - id[ATA_ID_FEATURE_SUPP] &= ~(1 << 8); + id[ATA_ID_FEATURE_SUPP] &= cpu_to_le16(~(1 << 8)); return 0; } diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 97683e45ab04..61a9c07e0dff 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -2003,7 +2003,7 @@ static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep) devslp = readl(port_mmio + PORT_DEVSLP); if (!(devslp & PORT_DEVSLP_DSP)) { - dev_err(ap->host->dev, "port does not support device sleep\n"); + dev_info(ap->host->dev, "port does not support device sleep\n"); return; } diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 5c84fb5c3372..d1a05f9bb91f 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4233,10 +4233,33 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "PIONEER DVD-RW DVR-216D", NULL, ATA_HORKAGE_NOSETXFER }, /* devices that don't properly handle queued TRIM commands */ - { "Micron_M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, }, - { "Crucial_CT???M500SSD*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, }, - { "Micron_M550*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, }, - { "Crucial_CT*M550SSD*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, }, + { "Micron_M[56]*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | + ATA_HORKAGE_ZERO_AFTER_TRIM, }, + { "Crucial_CT*SSD*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, }, + + /* + * As defined, the DRAT (Deterministic Read After Trim) and RZAT + * (Return Zero After Trim) flags in the ATA Command Set are + * unreliable in the sense that they only define what happens if + * the device successfully executed the DSM TRIM command. TRIM + * is only advisory, however, and the device is free to silently + * ignore all or parts of the request. + * + * Whitelist drives that are known to reliably return zeroes + * after TRIM. + */ + + /* + * The intel 510 drive has buggy DRAT/RZAT. Explicitly exclude + * that model before whitelisting all other intel SSDs. + */ + { "INTEL*SSDSC2MH*", NULL, 0, }, + + { "INTEL*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, + { "SSD*INTEL*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, + { "Samsung*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, + { "SAMSUNG*SSD*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, + { "ST[1248][0248]0[FH]*", NULL, ATA_HORKAGE_ZERO_AFTER_TRIM, }, /* * Some WD SATA-I drives spin up and down erratically when the link @@ -4748,7 +4771,10 @@ static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap) return NULL; for (i = 0, tag = ap->last_tag + 1; i < max_queue; i++, tag++) { - tag = tag < max_queue ? tag : 0; + if (ap->flags & ATA_FLAG_LOWTAG) + tag = i; + else + tag = tag < max_queue ? tag : 0; /* the last tag is reserved for internal command. */ if (tag == ATA_TAG_INTERNAL) diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 3dbec8954c86..8d00c2638bed 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2389,6 +2389,7 @@ const char *ata_get_cmd_descript(u8 command) return NULL; } +EXPORT_SYMBOL_GPL(ata_get_cmd_descript); /** * ata_eh_link_report - report error handling to user diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index e364e86e84d7..6abd17a85b13 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2532,13 +2532,15 @@ static unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf) rbuf[15] = lowest_aligned; if (ata_id_has_trim(args->id)) { - rbuf[14] |= 0x80; /* TPE */ + rbuf[14] |= 0x80; /* LBPME */ - if (ata_id_has_zero_after_trim(args->id)) - rbuf[14] |= 0x40; /* TPRZ */ + if (ata_id_has_zero_after_trim(args->id) && + dev->horkage & ATA_HORKAGE_ZERO_AFTER_TRIM) { + ata_dev_info(dev, "Enabling discard_zeroes_data\n"); + rbuf[14] |= 0x40; /* LBPRZ */ + } } } - return 0; } diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index db90aa35cb71..2e86e3b85266 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1333,7 +1333,19 @@ void ata_sff_flush_pio_task(struct ata_port *ap) DPRINTK("ENTER\n"); cancel_delayed_work_sync(&ap->sff_pio_task); + + /* + * We wanna reset the HSM state to IDLE. If we do so without + * grabbing the port lock, critical sections protected by it which + * expect the HSM state to stay stable may get surprised. For + * example, we may set IDLE in between the time + * __ata_sff_port_intr() checks for HSM_ST_IDLE and before it calls + * ata_sff_hsm_move() causing ata_sff_hsm_move() to BUG(). + */ + spin_lock_irq(ap->lock); ap->hsm_task_state = HSM_ST_IDLE; + spin_unlock_irq(ap->lock); + ap->sff_pio_task_link = NULL; if (ata_msg_ctl(ap)) diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c index c7ddef89e7b0..8e8248179d20 100644 --- a/drivers/ata/sata_dwc_460ex.c +++ b/drivers/ata/sata_dwc_460ex.c @@ -797,7 +797,7 @@ static int dma_dwc_init(struct sata_dwc_device *hsdev, int irq) if (err) { dev_err(host_pvt.dwc_dev, "%s: dma_request_interrupts returns" " %d\n", __func__, err); - goto error_out; + return err; } /* Enabe DMA */ @@ -808,11 +808,6 @@ static int dma_dwc_init(struct sata_dwc_device *hsdev, int irq) sata_dma_regs); return 0; - -error_out: - dma_dwc_exit(hsdev); - - return err; } static int sata_dwc_scr_read(struct ata_link *link, unsigned int scr, u32 *val) @@ -1662,7 +1657,7 @@ static int sata_dwc_probe(struct platform_device *ofdev) char *ver = (char *)&versionr; u8 *base = NULL; int err = 0; - int irq, rc; + int irq; struct ata_host *host; struct ata_port_info pi = sata_dwc_port_info[0]; const struct ata_port_info *ppi[] = { &pi, NULL }; @@ -1725,7 +1720,7 @@ static int sata_dwc_probe(struct platform_device *ofdev) if (irq == NO_IRQ) { dev_err(&ofdev->dev, "no SATA DMA irq\n"); err = -ENODEV; - goto error_out; + goto error_iomap; } /* Get physical SATA DMA register base address */ @@ -1734,14 +1729,16 @@ static int sata_dwc_probe(struct platform_device *ofdev) dev_err(&ofdev->dev, "ioremap failed for AHBDMA register" " address\n"); err = -ENODEV; - goto error_out; + goto error_iomap; } /* Save dev for later use in dev_xxx() routines */ host_pvt.dwc_dev = &ofdev->dev; /* Initialize AHB DMAC */ - dma_dwc_init(hsdev, irq); + err = dma_dwc_init(hsdev, irq); + if (err) + goto error_dma_iomap; /* Enable SATA Interrupts */ sata_dwc_enable_interrupts(hsdev); @@ -1759,9 +1756,8 @@ static int sata_dwc_probe(struct platform_device *ofdev) * device discovery process, invoking our port_start() handler & * error_handler() to execute a dummy Softreset EH session */ - rc = ata_host_activate(host, irq, sata_dwc_isr, 0, &sata_dwc_sht); - - if (rc != 0) + err = ata_host_activate(host, irq, sata_dwc_isr, 0, &sata_dwc_sht); + if (err) dev_err(&ofdev->dev, "failed to activate host"); dev_set_drvdata(&ofdev->dev, host); @@ -1770,7 +1766,8 @@ static int sata_dwc_probe(struct platform_device *ofdev) error_out: /* Free SATA DMA resources */ dma_dwc_exit(hsdev); - +error_dma_iomap: + iounmap((void __iomem *)host_pvt.sata_dma_regs); error_iomap: iounmap(base); error_kmalloc: @@ -1791,6 +1788,7 @@ static int sata_dwc_remove(struct platform_device *ofdev) /* Free SATA DMA resources */ dma_dwc_exit(hsdev); + iounmap((void __iomem *)host_pvt.sata_dma_regs); iounmap(hsdev->reg_base); kfree(hsdev); kfree(host); diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index d81b20ddb527..ea655949023f 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -246,7 +246,7 @@ enum { /* host flags */ SIL24_COMMON_FLAGS = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA | ATA_FLAG_NCQ | ATA_FLAG_ACPI_SATA | - ATA_FLAG_AN | ATA_FLAG_PMP, + ATA_FLAG_AN | ATA_FLAG_PMP | ATA_FLAG_LOWTAG, SIL24_FLAG_PCIX_IRQ_WOC = (1 << 24), /* IRQ loss errata on PCI-X */ IRQ_STAT_4PORTS = 0xf, diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c index 55d4803d71b0..3d9e08f7e823 100644 --- a/drivers/gpio/gpio-crystalcove.c +++ b/drivers/gpio/gpio-crystalcove.c @@ -272,7 +272,7 @@ static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data) for (gpio = 0; gpio < CRYSTALCOVE_GPIO_NUM; gpio++) { if (pending & BIT(gpio)) { virq = irq_find_mapping(cg->chip.irqdomain, gpio); - generic_handle_irq(virq); + handle_nested_irq(virq); } } diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 604dbe60bdee..08261f2b3a82 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -45,8 +45,14 @@ static int of_gpiochip_find_and_xlate(struct gpio_chip *gc, void *data) return false; ret = gc->of_xlate(gc, &gg_data->gpiospec, gg_data->flags); - if (ret < 0) - return false; + if (ret < 0) { + /* We've found the gpio chip, but the translation failed. + * Return true to stop looking and return the translation + * error via out_gpio + */ + gg_data->out_gpio = ERR_PTR(ret); + return true; + } gg_data->out_gpio = gpiochip_get_desc(gc, ret); return true; diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c index 2ac1800b58bb..f62aa115d79a 100644 --- a/drivers/gpio/gpiolib-sysfs.c +++ b/drivers/gpio/gpiolib-sysfs.c @@ -128,7 +128,7 @@ static ssize_t gpio_value_store(struct device *dev, return status; } -static const DEVICE_ATTR(value, 0644, +static DEVICE_ATTR(value, 0644, gpio_value_show, gpio_value_store); static irqreturn_t gpio_sysfs_irq(int irq, void *priv) @@ -353,17 +353,46 @@ static ssize_t gpio_active_low_store(struct device *dev, return status ? : size; } -static const DEVICE_ATTR(active_low, 0644, +static DEVICE_ATTR(active_low, 0644, gpio_active_low_show, gpio_active_low_store); -static const struct attribute *gpio_attrs[] = { +static umode_t gpio_is_visible(struct kobject *kobj, struct attribute *attr, + int n) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct gpio_desc *desc = dev_get_drvdata(dev); + umode_t mode = attr->mode; + bool show_direction = test_bit(FLAG_SYSFS_DIR, &desc->flags); + + if (attr == &dev_attr_direction.attr) { + if (!show_direction) + mode = 0; + } else if (attr == &dev_attr_edge.attr) { + if (gpiod_to_irq(desc) < 0) + mode = 0; + if (!show_direction && test_bit(FLAG_IS_OUT, &desc->flags)) + mode = 0; + } + + return mode; +} + +static struct attribute *gpio_attrs[] = { + &dev_attr_direction.attr, + &dev_attr_edge.attr, &dev_attr_value.attr, &dev_attr_active_low.attr, NULL, }; -static const struct attribute_group gpio_attr_group = { - .attrs = (struct attribute **) gpio_attrs, +static const struct attribute_group gpio_group = { + .attrs = gpio_attrs, + .is_visible = gpio_is_visible, +}; + +static const struct attribute_group *gpio_groups[] = { + &gpio_group, + NULL }; /* @@ -400,16 +429,13 @@ static ssize_t chip_ngpio_show(struct device *dev, } static DEVICE_ATTR(ngpio, 0444, chip_ngpio_show, NULL); -static const struct attribute *gpiochip_attrs[] = { +static struct attribute *gpiochip_attrs[] = { &dev_attr_base.attr, &dev_attr_label.attr, &dev_attr_ngpio.attr, NULL, }; - -static const struct attribute_group gpiochip_attr_group = { - .attrs = (struct attribute **) gpiochip_attrs, -}; +ATTRIBUTE_GROUPS(gpiochip); /* * /sys/class/gpio/export ... write-only @@ -556,45 +582,30 @@ int gpiod_export(struct gpio_desc *desc, bool direction_may_change) goto fail_unlock; } - if (!desc->chip->direction_input || !desc->chip->direction_output) - direction_may_change = false; + if (desc->chip->direction_input && desc->chip->direction_output && + direction_may_change) { + set_bit(FLAG_SYSFS_DIR, &desc->flags); + } + spin_unlock_irqrestore(&gpio_lock, flags); offset = gpio_chip_hwgpio(desc); if (desc->chip->names && desc->chip->names[offset]) ioname = desc->chip->names[offset]; - dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0), - desc, ioname ? ioname : "gpio%u", - desc_to_gpio(desc)); + dev = device_create_with_groups(&gpio_class, desc->chip->dev, + MKDEV(0, 0), desc, gpio_groups, + ioname ? ioname : "gpio%u", + desc_to_gpio(desc)); if (IS_ERR(dev)) { status = PTR_ERR(dev); goto fail_unlock; } - status = sysfs_create_group(&dev->kobj, &gpio_attr_group); - if (status) - goto fail_unregister_device; - - if (direction_may_change) { - status = device_create_file(dev, &dev_attr_direction); - if (status) - goto fail_unregister_device; - } - - if (gpiod_to_irq(desc) >= 0 && (direction_may_change || - !test_bit(FLAG_IS_OUT, &desc->flags))) { - status = device_create_file(dev, &dev_attr_edge); - if (status) - goto fail_unregister_device; - } - set_bit(FLAG_EXPORT, &desc->flags); mutex_unlock(&sysfs_lock); return 0; -fail_unregister_device: - device_unregister(dev); fail_unlock: mutex_unlock(&sysfs_lock); gpiod_dbg(desc, "%s: status %d\n", __func__, status); @@ -718,6 +729,7 @@ void gpiod_unexport(struct gpio_desc *desc) dev = class_find_device(&gpio_class, NULL, desc, match_export); if (dev) { gpio_setup_irq(desc, dev, 0); + clear_bit(FLAG_SYSFS_DIR, &desc->flags); clear_bit(FLAG_EXPORT, &desc->flags); } else status = -ENODEV; @@ -750,13 +762,13 @@ int gpiochip_export(struct gpio_chip *chip) /* use chip->base for the ID; it's already known to be unique */ mutex_lock(&sysfs_lock); - dev = device_create(&gpio_class, chip->dev, MKDEV(0, 0), chip, - "gpiochip%d", chip->base); - if (!IS_ERR(dev)) { - status = sysfs_create_group(&dev->kobj, - &gpiochip_attr_group); - } else + dev = device_create_with_groups(&gpio_class, chip->dev, MKDEV(0, 0), + chip, gpiochip_groups, + "gpiochip%d", chip->base); + if (IS_ERR(dev)) status = PTR_ERR(dev); + else + status = 0; chip->exported = (status == 0); mutex_unlock(&sysfs_lock); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 487afe6f22fc..568aa2b6bdb0 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -248,29 +248,30 @@ int gpiochip_add(struct gpio_chip *chip) base = gpiochip_find_base(chip->ngpio); if (base < 0) { status = base; - goto unlock; + spin_unlock_irqrestore(&gpio_lock, flags); + goto err_free_descs; } chip->base = base; } status = gpiochip_add_to_list(chip); + if (status) { + spin_unlock_irqrestore(&gpio_lock, flags); + goto err_free_descs; + } - if (status == 0) { - for (id = 0; id < chip->ngpio; id++) { - struct gpio_desc *desc = &descs[id]; - desc->chip = chip; - - /* REVISIT: most hardware initializes GPIOs as - * inputs (often with pullups enabled) so power - * usage is minimized. Linux code should set the - * gpio direction first thing; but until it does, - * and in case chip->get_direction is not set, - * we may expose the wrong direction in sysfs. - */ - desc->flags = !chip->direction_input - ? (1 << FLAG_IS_OUT) - : 0; - } + for (id = 0; id < chip->ngpio; id++) { + struct gpio_desc *desc = &descs[id]; + + desc->chip = chip; + + /* REVISIT: most hardware initializes GPIOs as inputs (often + * with pullups enabled) so power usage is minimized. Linux + * code should set the gpio direction first thing; but until + * it does, and in case chip->get_direction is not set, we may + * expose the wrong direction in sysfs. + */ + desc->flags = !chip->direction_input ? (1 << FLAG_IS_OUT) : 0; } chip->desc = descs; @@ -284,12 +285,9 @@ int gpiochip_add(struct gpio_chip *chip) of_gpiochip_add(chip); acpi_gpiochip_add(chip); - if (status) - goto fail; - status = gpiochip_export(chip); if (status) - goto fail; + goto err_remove_chip; pr_debug("%s: registered GPIOs %d to %d on device: %s\n", __func__, chip->base, chip->base + chip->ngpio - 1, @@ -297,11 +295,15 @@ int gpiochip_add(struct gpio_chip *chip) return 0; -unlock: +err_remove_chip: + acpi_gpiochip_remove(chip); + of_gpiochip_remove(chip); + spin_lock_irqsave(&gpio_lock, flags); + list_del(&chip->list); spin_unlock_irqrestore(&gpio_lock, flags); -fail: - kfree(descs); chip->desc = NULL; +err_free_descs: + kfree(descs); /* failures here can mean systems won't boot... */ pr_err("%s: GPIOs %d..%d (%s) failed to register\n", __func__, @@ -325,14 +327,15 @@ void gpiochip_remove(struct gpio_chip *chip) unsigned long flags; unsigned id; - acpi_gpiochip_remove(chip); - - spin_lock_irqsave(&gpio_lock, flags); + gpiochip_unexport(chip); gpiochip_irqchip_remove(chip); + + acpi_gpiochip_remove(chip); gpiochip_remove_pin_ranges(chip); of_gpiochip_remove(chip); + spin_lock_irqsave(&gpio_lock, flags); for (id = 0; id < chip->ngpio; id++) { if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags)) dev_crit(chip->dev, "REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED\n"); @@ -342,7 +345,6 @@ void gpiochip_remove(struct gpio_chip *chip) list_del(&chip->list); spin_unlock_irqrestore(&gpio_lock, flags); - gpiochip_unexport(chip); kfree(chip->desc); chip->desc = NULL; diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index e3a52113a541..550a5eafbd38 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -77,6 +77,7 @@ struct gpio_desc { #define FLAG_OPEN_DRAIN 7 /* Gpio is open drain type */ #define FLAG_OPEN_SOURCE 8 /* Gpio is open source type */ #define FLAG_USED_AS_IRQ 9 /* GPIO is connected to an IRQ */ +#define FLAG_SYSFS_DIR 10 /* show sysfs direction attribute */ #define ID_SHIFT 16 /* add new flags before this one */ diff --git a/drivers/gpu/drm/amd/amdkfd/Makefile b/drivers/gpu/drm/amd/amdkfd/Makefile index be6246de5091..307a309110e6 100644 --- a/drivers/gpu/drm/amd/amdkfd/Makefile +++ b/drivers/gpu/drm/amd/amdkfd/Makefile @@ -8,7 +8,6 @@ amdkfd-y := kfd_module.o kfd_device.o kfd_chardev.o kfd_topology.o \ kfd_pasid.o kfd_doorbell.o kfd_flat_memory.o \ kfd_process.o kfd_queue.o kfd_mqd_manager.o \ kfd_kernel_queue.o kfd_packet_manager.o \ - kfd_process_queue_manager.o kfd_device_queue_manager.o \ - kfd_interrupt.o + kfd_process_queue_manager.o kfd_device_queue_manager.o obj-$(CONFIG_HSA_AMD) += amdkfd.o diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 43884ebd4303..633532a2e7ec 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -192,13 +192,6 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, goto kfd_topology_add_device_error; } - if (kfd_interrupt_init(kfd)) { - dev_err(kfd_device, - "Error initializing interrupts for device (%x:%x)\n", - kfd->pdev->vendor, kfd->pdev->device); - goto kfd_interrupt_error; - } - if (!device_iommu_pasid_init(kfd)) { dev_err(kfd_device, "Error initializing iommuv2 for device (%x:%x)\n", @@ -237,8 +230,6 @@ dqm_start_error: device_queue_manager_error: amd_iommu_free_device(kfd->pdev); device_iommu_pasid_error: - kfd_interrupt_exit(kfd); -kfd_interrupt_error: kfd_topology_remove_device(kfd); kfd_topology_add_device_error: kfd2kgd->fini_sa_manager(kfd->kgd); @@ -254,7 +245,6 @@ void kgd2kfd_device_exit(struct kfd_dev *kfd) if (kfd->init_complete) { device_queue_manager_uninit(kfd->dqm); amd_iommu_free_device(kfd->pdev); - kfd_interrupt_exit(kfd); kfd_topology_remove_device(kfd); } @@ -296,13 +286,5 @@ int kgd2kfd_resume(struct kfd_dev *kfd) /* This is called directly from KGD at ISR. */ void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry) { - if (kfd->init_complete) { - spin_lock(&kfd->interrupt_lock); - - if (kfd->interrupts_active - && enqueue_ih_ring_entry(kfd, ih_ring_entry)) - schedule_work(&kfd->interrupt_work); - - spin_unlock(&kfd->interrupt_lock); - } + /* Process interrupts / schedule work as necessary */ } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 9c8961d22360..30c8fda9622e 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -280,7 +280,7 @@ static int create_compute_queue_nocpsch(struct device_queue_manager *dqm, q->queue); retval = mqd->load_mqd(mqd, q->mqd, q->pipe, - q->queue, q->properties.write_ptr); + q->queue, (uint32_t __user *) q->properties.write_ptr); if (retval != 0) { deallocate_hqd(dqm, q); mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c b/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c deleted file mode 100644 index 5b999095a1f7..000000000000 --- a/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Copyright 2014 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * KFD Interrupts. - * - * AMD GPUs deliver interrupts by pushing an interrupt description onto the - * interrupt ring and then sending an interrupt. KGD receives the interrupt - * in ISR and sends us a pointer to each new entry on the interrupt ring. - * - * We generally can't process interrupt-signaled events from ISR, so we call - * out to each interrupt client module (currently only the scheduler) to ask if - * each interrupt is interesting. If they return true, then it requires further - * processing so we copy it to an internal interrupt ring and call each - * interrupt client again from a work-queue. - * - * There's no acknowledgment for the interrupts we use. The hardware simply - * queues a new interrupt each time without waiting. - * - * The fixed-size internal queue means that it's possible for us to lose - * interrupts because we have no back-pressure to the hardware. - */ - -#include <linux/slab.h> -#include <linux/device.h> -#include "kfd_priv.h" - -#define KFD_INTERRUPT_RING_SIZE 256 - -static void interrupt_wq(struct work_struct *); - -int kfd_interrupt_init(struct kfd_dev *kfd) -{ - void *interrupt_ring = kmalloc_array(KFD_INTERRUPT_RING_SIZE, - kfd->device_info->ih_ring_entry_size, - GFP_KERNEL); - if (!interrupt_ring) - return -ENOMEM; - - kfd->interrupt_ring = interrupt_ring; - kfd->interrupt_ring_size = - KFD_INTERRUPT_RING_SIZE * kfd->device_info->ih_ring_entry_size; - atomic_set(&kfd->interrupt_ring_wptr, 0); - atomic_set(&kfd->interrupt_ring_rptr, 0); - - spin_lock_init(&kfd->interrupt_lock); - - INIT_WORK(&kfd->interrupt_work, interrupt_wq); - - kfd->interrupts_active = true; - - /* - * After this function returns, the interrupt will be enabled. This - * barrier ensures that the interrupt running on a different processor - * sees all the above writes. - */ - smp_wmb(); - - return 0; -} - -void kfd_interrupt_exit(struct kfd_dev *kfd) -{ - /* - * Stop the interrupt handler from writing to the ring and scheduling - * workqueue items. The spinlock ensures that any interrupt running - * after we have unlocked sees interrupts_active = false. - */ - unsigned long flags; - - spin_lock_irqsave(&kfd->interrupt_lock, flags); - kfd->interrupts_active = false; - spin_unlock_irqrestore(&kfd->interrupt_lock, flags); - - /* - * Flush_scheduled_work ensures that there are no outstanding - * work-queue items that will access interrupt_ring. New work items - * can't be created because we stopped interrupt handling above. - */ - flush_scheduled_work(); - - kfree(kfd->interrupt_ring); -} - -/* - * This assumes that it can't be called concurrently with itself - * but only with dequeue_ih_ring_entry. - */ -bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry) -{ - unsigned int rptr = atomic_read(&kfd->interrupt_ring_rptr); - unsigned int wptr = atomic_read(&kfd->interrupt_ring_wptr); - - if ((rptr - wptr) % kfd->interrupt_ring_size == - kfd->device_info->ih_ring_entry_size) { - /* This is very bad, the system is likely to hang. */ - dev_err_ratelimited(kfd_chardev(), - "Interrupt ring overflow, dropping interrupt.\n"); - return false; - } - - memcpy(kfd->interrupt_ring + wptr, ih_ring_entry, - kfd->device_info->ih_ring_entry_size); - - wptr = (wptr + kfd->device_info->ih_ring_entry_size) % - kfd->interrupt_ring_size; - smp_wmb(); /* Ensure memcpy'd data is visible before wptr update. */ - atomic_set(&kfd->interrupt_ring_wptr, wptr); - - return true; -} - -/* - * This assumes that it can't be called concurrently with itself - * but only with enqueue_ih_ring_entry. - */ -static bool dequeue_ih_ring_entry(struct kfd_dev *kfd, void *ih_ring_entry) -{ - /* - * Assume that wait queues have an implicit barrier, i.e. anything that - * happened in the ISR before it queued work is visible. - */ - - unsigned int wptr = atomic_read(&kfd->interrupt_ring_wptr); - unsigned int rptr = atomic_read(&kfd->interrupt_ring_rptr); - - if (rptr == wptr) - return false; - - memcpy(ih_ring_entry, kfd->interrupt_ring + rptr, - kfd->device_info->ih_ring_entry_size); - - rptr = (rptr + kfd->device_info->ih_ring_entry_size) % - kfd->interrupt_ring_size; - - /* - * Ensure the rptr write update is not visible until - * memcpy has finished reading. - */ - smp_mb(); - atomic_set(&kfd->interrupt_ring_rptr, rptr); - - return true; -} - -static void interrupt_wq(struct work_struct *work) -{ - struct kfd_dev *dev = container_of(work, struct kfd_dev, - interrupt_work); - - uint32_t ih_ring_entry[DIV_ROUND_UP( - dev->device_info->ih_ring_entry_size, - sizeof(uint32_t))]; - - while (dequeue_ih_ring_entry(dev, ih_ring_entry)) - ; -} diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index a5edb29507e3..b3dc13c83169 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -135,22 +135,10 @@ struct kfd_dev { struct kgd2kfd_shared_resources shared_resources; - void *interrupt_ring; - size_t interrupt_ring_size; - atomic_t interrupt_ring_rptr; - atomic_t interrupt_ring_wptr; - struct work_struct interrupt_work; - spinlock_t interrupt_lock; - /* QCM Device instance */ struct device_queue_manager *dqm; bool init_complete; - /* - * Interrupts of interest to KFD are copied - * from the HW ring into a SW ring. - */ - bool interrupts_active; }; /* KGD2KFD callbacks */ @@ -531,10 +519,7 @@ struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); struct kfd_dev *kfd_topology_enum_kfd_devices(uint8_t idx); /* Interrupts */ -int kfd_interrupt_init(struct kfd_dev *dev); -void kfd_interrupt_exit(struct kfd_dev *dev); void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); -bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry); /* Power Management */ void kgd2kfd_suspend(struct kfd_dev *kfd); diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 52ce26d6b4fb..cf775a4449c1 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -741,7 +741,9 @@ int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) int i, j, rc = 0; int start; - drm_modeset_lock_all(dev); + if (__drm_modeset_lock_all(dev, !!oops_in_progress)) { + return -EBUSY; + } if (!drm_fb_helper_is_bound(fb_helper)) { drm_modeset_unlock_all(dev); return -EBUSY; @@ -915,7 +917,9 @@ int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, int ret = 0; int i; - drm_modeset_lock_all(dev); + if (__drm_modeset_lock_all(dev, !!oops_in_progress)) { + return -EBUSY; + } if (!drm_fb_helper_is_bound(fb_helper)) { drm_modeset_unlock_all(dev); return -EBUSY; diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 121470a83d1a..1bcbe07cecfc 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -645,18 +645,6 @@ static int exynos_drm_init(void) if (!is_exynos) return -ENODEV; - /* - * Register device object only in case of Exynos SoC. - * - * Below codes resolves temporarily infinite loop issue incurred - * by Exynos drm driver when using multi-platform kernel. - * So these codes will be replaced with more generic way later. - */ - if (!of_machine_is_compatible("samsung,exynos3") && - !of_machine_is_compatible("samsung,exynos4") && - !of_machine_is_compatible("samsung,exynos5")) - return -ENODEV; - exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1, NULL, 0); if (IS_ERR(exynos_drm_pdev)) diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 5765a161abdd..98051e8e855a 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1669,7 +1669,6 @@ static void hdmi_mode_apply(struct hdmi_context *hdata) static void hdmiphy_conf_reset(struct hdmi_context *hdata) { - u8 buffer[2]; u32 reg; clk_disable_unprepare(hdata->res.sclk_hdmi); @@ -1677,11 +1676,8 @@ static void hdmiphy_conf_reset(struct hdmi_context *hdata) clk_prepare_enable(hdata->res.sclk_hdmi); /* operation mode */ - buffer[0] = 0x1f; - buffer[1] = 0x00; - - if (hdata->hdmiphy_port) - i2c_master_send(hdata->hdmiphy_port, buffer, 2); + hdmiphy_reg_writeb(hdata, HDMIPHY_MODE_SET_DONE, + HDMI_PHY_ENABLE_MODE_SET); if (hdata->type == HDMI_TYPE13) reg = HDMI_V13_PHY_RSTOUT; diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 820b76234ef4..064ed6597def 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -1026,6 +1026,7 @@ static void mixer_win_disable(struct exynos_drm_manager *mgr, int zpos) static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr) { struct mixer_context *mixer_ctx = mgr_to_mixer(mgr); + int err; mutex_lock(&mixer_ctx->mixer_mutex); if (!mixer_ctx->powered) { @@ -1034,7 +1035,11 @@ static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr) } mutex_unlock(&mixer_ctx->mixer_mutex); - drm_vblank_get(mgr->crtc->dev, mixer_ctx->pipe); + err = drm_vblank_get(mgr->crtc->dev, mixer_ctx->pipe); + if (err < 0) { + DRM_DEBUG_KMS("failed to acquire vblank counter\n"); + return; + } atomic_set(&mixer_ctx->wait_vsync_event, 1); @@ -1262,8 +1267,6 @@ static int mixer_bind(struct device *dev, struct device *manager, void *data) return ret; } - pm_runtime_enable(dev); - return 0; } @@ -1272,8 +1275,6 @@ static void mixer_unbind(struct device *dev, struct device *master, void *data) struct mixer_context *ctx = dev_get_drvdata(dev); mixer_mgr_remove(&ctx->manager); - - pm_runtime_disable(dev); } static const struct component_ops mixer_component_ops = { diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index c11603b4cf1d..76354d3ba925 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -5155,7 +5155,7 @@ static bool mutex_is_locked_by(struct mutex *mutex, struct task_struct *task) if (!mutex_is_locked(mutex)) return false; -#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES) +#if defined(CONFIG_SMP) && !defined(CONFIG_DEBUG_MUTEXES) return mutex->owner == task; #else /* Since UP may be pre-empted, we cannot assume that we own the lock */ diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index d0d3dfbe6d2a..b051a238baf9 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -292,6 +292,23 @@ void gen6_enable_rps_interrupts(struct drm_device *dev) spin_unlock_irq(&dev_priv->irq_lock); } +u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask) +{ + /* + * SNB,IVB can while VLV,CHV may hard hang on looping batchbuffer + * if GEN6_PM_UP_EI_EXPIRED is masked. + * + * TODO: verify if this can be reproduced on VLV,CHV. + */ + if (INTEL_INFO(dev_priv)->gen <= 7 && !IS_HASWELL(dev_priv)) + mask &= ~GEN6_PM_RP_UP_EI_EXPIRED; + + if (INTEL_INFO(dev_priv)->gen >= 8) + mask &= ~GEN8_PMINTR_REDIRECT_TO_NON_DISP; + + return mask; +} + void gen6_disable_rps_interrupts(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -304,8 +321,7 @@ void gen6_disable_rps_interrupts(struct drm_device *dev) spin_lock_irq(&dev_priv->irq_lock); - I915_WRITE(GEN6_PMINTRMSK, INTEL_INFO(dev_priv)->gen >= 8 ? - ~GEN8_PMINTR_REDIRECT_TO_NON_DISP : ~0); + I915_WRITE(GEN6_PMINTRMSK, gen6_sanitize_rps_pm_mask(dev_priv, ~0)); __gen6_disable_pm_irq(dev_priv, dev_priv->pm_rps_events); I915_WRITE(gen6_pm_ier(dev_priv), I915_READ(gen6_pm_ier(dev_priv)) & diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e2af1383b179..e7a16f119a29 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9815,7 +9815,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, if (obj->tiling_mode != work->old_fb_obj->tiling_mode) /* vlv: DISPLAY_FLIP fails to change tiling */ ring = NULL; - } else if (IS_IVYBRIDGE(dev)) { + } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { ring = &dev_priv->ring[BCS]; } else if (INTEL_INFO(dev)->gen >= 7) { ring = obj->ring; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 25fdbb16d4e0..3b40a17b8852 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -794,6 +794,7 @@ void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask); void gen6_reset_rps_interrupts(struct drm_device *dev); void gen6_enable_rps_interrupts(struct drm_device *dev); void gen6_disable_rps_interrupts(struct drm_device *dev); +u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask); void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv); void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv); static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 964b28e3c630..bf814a64582a 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4363,16 +4363,7 @@ static u32 gen6_rps_pm_mask(struct drm_i915_private *dev_priv, u8 val) mask |= dev_priv->pm_rps_events & (GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED); mask &= dev_priv->pm_rps_events; - /* IVB and SNB hard hangs on looping batchbuffer - * if GEN6_PM_UP_EI_EXPIRED is masked. - */ - if (INTEL_INFO(dev_priv->dev)->gen <= 7 && !IS_HASWELL(dev_priv->dev)) - mask |= GEN6_PM_RP_UP_EI_EXPIRED; - - if (IS_GEN8(dev_priv->dev)) - mask |= GEN8_PMINTR_REDIRECT_TO_NON_DISP; - - return ~mask; + return gen6_sanitize_rps_pm_mask(dev_priv, ~mask); } /* gen6_set_rps is called to update the frequency request, but should also be @@ -4441,7 +4432,8 @@ static void vlv_set_rps_idle(struct drm_i915_private *dev_priv) return; /* Mask turbo interrupt so that they will not come in between */ - I915_WRITE(GEN6_PMINTRMSK, 0xffffffff); + I915_WRITE(GEN6_PMINTRMSK, + gen6_sanitize_rps_pm_mask(dev_priv, ~0)); vlv_force_gfx_clock(dev_priv, true); diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 6dcde3798b45..64fdae558d36 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -6033,6 +6033,17 @@ void cik_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, radeon_ring_write(ring, 0); radeon_ring_write(ring, 1 << vm_id); + /* wait for the invalidate to complete */ + radeon_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5)); + radeon_ring_write(ring, (WAIT_REG_MEM_OPERATION(0) | /* wait */ + WAIT_REG_MEM_FUNCTION(0) | /* always */ + WAIT_REG_MEM_ENGINE(0))); /* me */ + radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, 0); /* ref */ + radeon_ring_write(ring, 0); /* mask */ + radeon_ring_write(ring, 0x20); /* poll interval */ + /* compute doesn't have PFP */ if (usepfp) { /* sync PFP to ME, otherwise we might get invalid PFP reads */ diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c index dde5c7e29eb2..a0133c74f4cf 100644 --- a/drivers/gpu/drm/radeon/cik_sdma.c +++ b/drivers/gpu/drm/radeon/cik_sdma.c @@ -903,6 +903,9 @@ void cik_sdma_vm_pad_ib(struct radeon_ib *ib) void cik_dma_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, unsigned vm_id, uint64_t pd_addr) { + u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) | + SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */ + radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); if (vm_id < 8) { radeon_ring_write(ring, (VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm_id << 2)) >> 2); @@ -943,5 +946,12 @@ void cik_dma_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); radeon_ring_write(ring, 1 << vm_id); + + radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); + radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, 0); /* reference */ + radeon_ring_write(ring, 0); /* mask */ + radeon_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ } diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 360de9f1f491..aea48c89b241 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -2516,6 +2516,16 @@ void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, radeon_ring_write(ring, PACKET0(VM_INVALIDATE_REQUEST, 0)); radeon_ring_write(ring, 1 << vm_id); + /* wait for the invalidate to complete */ + radeon_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5)); + radeon_ring_write(ring, (WAIT_REG_MEM_FUNCTION(0) | /* always */ + WAIT_REG_MEM_ENGINE(0))); /* me */ + radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, 0); /* ref */ + radeon_ring_write(ring, 0); /* mask */ + radeon_ring_write(ring, 0x20); /* poll interval */ + /* sync PFP to ME, otherwise we might get invalid PFP reads */ radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0)); radeon_ring_write(ring, 0x0); diff --git a/drivers/gpu/drm/radeon/ni_dma.c b/drivers/gpu/drm/radeon/ni_dma.c index 50f88611ff60..4be2bb7cbef3 100644 --- a/drivers/gpu/drm/radeon/ni_dma.c +++ b/drivers/gpu/drm/radeon/ni_dma.c @@ -463,5 +463,11 @@ void cayman_dma_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0)); radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2)); radeon_ring_write(ring, 1 << vm_id); + + /* wait for invalidate to complete */ + radeon_ring_write(ring, DMA_SRBM_READ_PACKET); + radeon_ring_write(ring, (0xff << 20) | (VM_INVALIDATE_REQUEST >> 2)); + radeon_ring_write(ring, 0); /* mask */ + radeon_ring_write(ring, 0); /* value */ } diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h index 2e12e4d69253..ad7125486894 100644 --- a/drivers/gpu/drm/radeon/nid.h +++ b/drivers/gpu/drm/radeon/nid.h @@ -1133,6 +1133,23 @@ #define PACKET3_MEM_SEMAPHORE 0x39 #define PACKET3_MPEG_INDEX 0x3A #define PACKET3_WAIT_REG_MEM 0x3C +#define WAIT_REG_MEM_FUNCTION(x) ((x) << 0) + /* 0 - always + * 1 - < + * 2 - <= + * 3 - == + * 4 - != + * 5 - >= + * 6 - > + */ +#define WAIT_REG_MEM_MEM_SPACE(x) ((x) << 4) + /* 0 - reg + * 1 - mem + */ +#define WAIT_REG_MEM_ENGINE(x) ((x) << 8) + /* 0 - me + * 1 - pfp + */ #define PACKET3_MEM_WRITE 0x3D #define PACKET3_PFP_SYNC_ME 0x42 #define PACKET3_SURFACE_SYNC 0x43 @@ -1272,6 +1289,13 @@ (1 << 21) | \ (((n) & 0xFFFFF) << 0)) +#define DMA_SRBM_POLL_PACKET ((9 << 28) | \ + (1 << 27) | \ + (1 << 26)) + +#define DMA_SRBM_READ_PACKET ((9 << 28) | \ + (1 << 27)) + /* async DMA Packet types */ #define DMA_PACKET_WRITE 0x2 #define DMA_PACKET_COPY 0x3 diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 850de57069be..121aff6a3b41 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -333,6 +333,20 @@ static struct radeon_asic_ring r300_gfx_ring = { .set_wptr = &r100_gfx_set_wptr, }; +static struct radeon_asic_ring rv515_gfx_ring = { + .ib_execute = &r100_ring_ib_execute, + .emit_fence = &r300_fence_ring_emit, + .emit_semaphore = &r100_semaphore_ring_emit, + .cs_parse = &r300_cs_parse, + .ring_start = &rv515_ring_start, + .ring_test = &r100_ring_test, + .ib_test = &r100_ib_test, + .is_lockup = &r100_gpu_is_lockup, + .get_rptr = &r100_gfx_get_rptr, + .get_wptr = &r100_gfx_get_wptr, + .set_wptr = &r100_gfx_set_wptr, +}; + static struct radeon_asic r300_asic = { .init = &r300_init, .fini = &r300_fini, @@ -748,7 +762,7 @@ static struct radeon_asic rv515_asic = { .set_page = &rv370_pcie_gart_set_page, }, .ring = { - [RADEON_RING_TYPE_GFX_INDEX] = &r300_gfx_ring + [RADEON_RING_TYPE_GFX_INDEX] = &rv515_gfx_ring }, .irq = { .set = &rs600_irq_set, @@ -814,7 +828,7 @@ static struct radeon_asic r520_asic = { .set_page = &rv370_pcie_gart_set_page, }, .ring = { - [RADEON_RING_TYPE_GFX_INDEX] = &r300_gfx_ring + [RADEON_RING_TYPE_GFX_INDEX] = &rv515_gfx_ring }, .irq = { .set = &rs600_irq_set, diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index a46f73737994..d0b4f7d1140d 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -576,7 +576,7 @@ error_unreserve: error_free: drm_free_large(vm_bos); - if (r) + if (r && r != -ERESTARTSYS) DRM_ERROR("Couldn't update BO_VA (%d)\n", r); } diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 32522cc940a1..f7da8fe96a66 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -1287,8 +1287,39 @@ dpm_failed: return ret; } +struct radeon_dpm_quirk { + u32 chip_vendor; + u32 chip_device; + u32 subsys_vendor; + u32 subsys_device; +}; + +/* cards with dpm stability problems */ +static struct radeon_dpm_quirk radeon_dpm_quirk_list[] = { + /* TURKS - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386534 */ + { PCI_VENDOR_ID_ATI, 0x6759, 0x1682, 0x3195 }, + /* TURKS - https://bugzilla.kernel.org/show_bug.cgi?id=83731 */ + { PCI_VENDOR_ID_ATI, 0x6840, 0x1179, 0xfb81 }, + { 0, 0, 0, 0 }, +}; + int radeon_pm_init(struct radeon_device *rdev) { + struct radeon_dpm_quirk *p = radeon_dpm_quirk_list; + bool disable_dpm = false; + + /* Apply dpm quirks */ + while (p && p->chip_device != 0) { + if (rdev->pdev->vendor == p->chip_vendor && + rdev->pdev->device == p->chip_device && + rdev->pdev->subsystem_vendor == p->subsys_vendor && + rdev->pdev->subsystem_device == p->subsys_device) { + disable_dpm = true; + break; + } + ++p; + } + /* enable dpm on rv6xx+ */ switch (rdev->family) { case CHIP_RV610: @@ -1344,6 +1375,8 @@ int radeon_pm_init(struct radeon_device *rdev) (!(rdev->flags & RADEON_IS_IGP)) && (!rdev->smc_fw)) rdev->pm.pm_method = PM_METHOD_PROFILE; + else if (disable_dpm && (radeon_dpm == -1)) + rdev->pm.pm_method = PM_METHOD_PROFILE; else if (radeon_dpm == 0) rdev->pm.pm_method = PM_METHOD_PROFILE; else diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 60df444bd075..5d89b874a1a2 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -5057,6 +5057,16 @@ void si_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, radeon_ring_write(ring, 0); radeon_ring_write(ring, 1 << vm_id); + /* wait for the invalidate to complete */ + radeon_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5)); + radeon_ring_write(ring, (WAIT_REG_MEM_FUNCTION(0) | /* always */ + WAIT_REG_MEM_ENGINE(0))); /* me */ + radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, 0); /* ref */ + radeon_ring_write(ring, 0); /* mask */ + radeon_ring_write(ring, 0x20); /* poll interval */ + /* sync PFP to ME, otherwise we might get invalid PFP reads */ radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0)); radeon_ring_write(ring, 0x0); diff --git a/drivers/gpu/drm/radeon/si_dma.c b/drivers/gpu/drm/radeon/si_dma.c index f5cc777e1c5f..aa7b872b2c43 100644 --- a/drivers/gpu/drm/radeon/si_dma.c +++ b/drivers/gpu/drm/radeon/si_dma.c @@ -206,6 +206,14 @@ void si_dma_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0)); radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2)); radeon_ring_write(ring, 1 << vm_id); + + /* wait for invalidate to complete */ + radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_POLL_REG_MEM, 0, 0, 0, 0)); + radeon_ring_write(ring, VM_INVALIDATE_REQUEST); + radeon_ring_write(ring, 0xff << 16); /* retry */ + radeon_ring_write(ring, 1 << vm_id); /* mask */ + radeon_ring_write(ring, 0); /* value */ + radeon_ring_write(ring, (0 << 28) | 0x20); /* func(always) | poll interval */ } /** diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 32e354b8b0ab..eff8a6444956 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -2908,6 +2908,22 @@ static int si_init_smc_spll_table(struct radeon_device *rdev) return ret; } +struct si_dpm_quirk { + u32 chip_vendor; + u32 chip_device; + u32 subsys_vendor; + u32 subsys_device; + u32 max_sclk; + u32 max_mclk; +}; + +/* cards with dpm stability problems */ +static struct si_dpm_quirk si_dpm_quirk_list[] = { + /* PITCAIRN - https://bugs.freedesktop.org/show_bug.cgi?id=76490 */ + { PCI_VENDOR_ID_ATI, 0x6810, 0x1462, 0x3036, 0, 120000 }, + { 0, 0, 0, 0 }, +}; + static void si_apply_state_adjust_rules(struct radeon_device *rdev, struct radeon_ps *rps) { @@ -2918,7 +2934,22 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev, u32 mclk, sclk; u16 vddc, vddci; u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc; + u32 max_sclk = 0, max_mclk = 0; int i; + struct si_dpm_quirk *p = si_dpm_quirk_list; + + /* Apply dpm quirks */ + while (p && p->chip_device != 0) { + if (rdev->pdev->vendor == p->chip_vendor && + rdev->pdev->device == p->chip_device && + rdev->pdev->subsystem_vendor == p->subsys_vendor && + rdev->pdev->subsystem_device == p->subsys_device) { + max_sclk = p->max_sclk; + max_mclk = p->max_mclk; + break; + } + ++p; + } if ((rdev->pm.dpm.new_active_crtc_count > 1) || ni_dpm_vblank_too_short(rdev)) @@ -2972,6 +3003,14 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev, if (ps->performance_levels[i].mclk > max_mclk_vddc) ps->performance_levels[i].mclk = max_mclk_vddc; } + if (max_mclk) { + if (ps->performance_levels[i].mclk > max_mclk) + ps->performance_levels[i].mclk = max_mclk; + } + if (max_sclk) { + if (ps->performance_levels[i].sclk > max_sclk) + ps->performance_levels[i].sclk = max_sclk; + } } /* XXX validate the min clocks required for display */ diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 4069be89e585..84999242c747 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -1632,6 +1632,23 @@ #define PACKET3_MPEG_INDEX 0x3A #define PACKET3_COPY_DW 0x3B #define PACKET3_WAIT_REG_MEM 0x3C +#define WAIT_REG_MEM_FUNCTION(x) ((x) << 0) + /* 0 - always + * 1 - < + * 2 - <= + * 3 - == + * 4 - != + * 5 - >= + * 6 - > + */ +#define WAIT_REG_MEM_MEM_SPACE(x) ((x) << 4) + /* 0 - reg + * 1 - mem + */ +#define WAIT_REG_MEM_ENGINE(x) ((x) << 8) + /* 0 - me + * 1 - pfp + */ #define PACKET3_MEM_WRITE 0x3D #define PACKET3_COPY_DATA 0x40 #define PACKET3_CP_DMA 0x41 @@ -1835,6 +1852,7 @@ #define DMA_PACKET_TRAP 0x7 #define DMA_PACKET_SRBM_WRITE 0x9 #define DMA_PACKET_CONSTANT_FILL 0xd +#define DMA_PACKET_POLL_REG_MEM 0xe #define DMA_PACKET_NOP 0xf #define VCE_STATUS 0x20004 diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 57ecc5b204f3..9117b7a2d5f8 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1114,7 +1114,8 @@ static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_ struct mlx4_dev *dev = to_mdev(qp->device)->dev; int err = 0; - if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) + if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN || + dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) return 0; /* do nothing */ ib_flow = flow_attr + 1; diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index f2b978026407..77ecf6d32237 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1520,6 +1520,8 @@ static int elantech_set_properties(struct elantech_data *etd) case 7: case 8: case 9: + case 10: + case 13: etd->hw_version = 4; break; default: diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index c66d1b53843e..764857b4e268 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -415,6 +415,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = { }, }, { + /* Acer Aspire 7738 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"), + }, + }, + { /* Gericom Bellagio */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Gericom"), @@ -745,6 +752,35 @@ static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = { { } }; +/* + * Some laptops need keyboard reset before probing for the trackpad to get + * it detected, initialised & finally work. + */ +static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = { + { + /* Gigabyte P35 v2 - Elantech touchpad */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), + DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"), + }, + }, + { + /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), + DMI_MATCH(DMI_PRODUCT_NAME, "X3"), + }, + }, + { + /* Gigabyte P34 - Elantech touchpad */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), + DMI_MATCH(DMI_PRODUCT_NAME, "P34"), + }, + }, + { } +}; + #endif /* CONFIG_X86 */ #ifdef CONFIG_PNP @@ -1040,6 +1076,9 @@ static int __init i8042_platform_init(void) if (dmi_check_system(i8042_dmi_dritek_table)) i8042_dritek = true; + if (dmi_check_system(i8042_dmi_kbdreset_table)) + i8042_kbdreset = true; + /* * A20 was already enabled during early kernel init. But some buggy * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 924e4bf357fb..986a71c614b0 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -67,6 +67,10 @@ static bool i8042_notimeout; module_param_named(notimeout, i8042_notimeout, bool, 0); MODULE_PARM_DESC(notimeout, "Ignore timeouts signalled by i8042"); +static bool i8042_kbdreset; +module_param_named(kbdreset, i8042_kbdreset, bool, 0); +MODULE_PARM_DESC(kbdreset, "Reset device connected to KBD port"); + #ifdef CONFIG_X86 static bool i8042_dritek; module_param_named(dritek, i8042_dritek, bool, 0); @@ -790,6 +794,16 @@ static int __init i8042_check_aux(void) return -1; /* + * Reset keyboard (needed on some laptops to successfully detect + * touchpad, e.g., some Gigabyte laptop models with Elantech + * touchpads). + */ + if (i8042_kbdreset) { + pr_warn("Attempting to reset device connected to KBD port\n"); + i8042_kbd_write(NULL, (unsigned char) 0xff); + } + +/* * Test AUX IRQ delivery to make sure BIOS did not grab the IRQ and * used it for a PCI card or somethig else. */ diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c index 52a0c2f6264f..ae498b53ee40 100644 --- a/drivers/mfd/da9052-core.c +++ b/drivers/mfd/da9052-core.c @@ -554,7 +554,8 @@ int da9052_device_init(struct da9052 *da9052, u8 chip_id) return ret; } - ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info, + ret = mfd_add_devices(da9052->dev, PLATFORM_DEVID_AUTO, + da9052_subdev_info, ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL); if (ret) { dev_err(da9052->dev, "mfd_add_devices failed: %d\n", ret); diff --git a/drivers/mfd/rtsx_usb.c b/drivers/mfd/rtsx_usb.c index dbdd0faeb6ce..210d1f85679e 100644 --- a/drivers/mfd/rtsx_usb.c +++ b/drivers/mfd/rtsx_usb.c @@ -681,21 +681,9 @@ static void rtsx_usb_disconnect(struct usb_interface *intf) #ifdef CONFIG_PM static int rtsx_usb_suspend(struct usb_interface *intf, pm_message_t message) { - struct rtsx_ucr *ucr = - (struct rtsx_ucr *)usb_get_intfdata(intf); - dev_dbg(&intf->dev, "%s called with pm message 0x%04x\n", __func__, message.event); - /* - * Call to make sure LED is off during suspend to save more power. - * It is NOT a permanent state and could be turned on anytime later. - * Thus no need to call turn_on when resunming. - */ - mutex_lock(&ucr->dev_mutex); - rtsx_usb_turn_off_led(ucr); - mutex_unlock(&ucr->dev_mutex); - return 0; } diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c index 0d256cb002eb..d6b764349f9d 100644 --- a/drivers/mfd/tps65218.c +++ b/drivers/mfd/tps65218.c @@ -125,10 +125,21 @@ int tps65218_clear_bits(struct tps65218 *tps, unsigned int reg, } EXPORT_SYMBOL_GPL(tps65218_clear_bits); +static const struct regmap_range tps65218_yes_ranges[] = { + regmap_reg_range(TPS65218_REG_INT1, TPS65218_REG_INT2), + regmap_reg_range(TPS65218_REG_STATUS, TPS65218_REG_STATUS), +}; + +static const struct regmap_access_table tps65218_volatile_table = { + .yes_ranges = tps65218_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(tps65218_yes_ranges), +}; + static struct regmap_config tps65218_regmap_config = { .reg_bits = 8, .val_bits = 8, .cache_type = REGCACHE_RBTREE, + .volatile_table = &tps65218_volatile_table, }; static const struct regmap_irq tps65218_irqs[] = { @@ -193,6 +204,7 @@ static struct regmap_irq_chip tps65218_irq_chip = { .num_regs = 2, .mask_base = TPS65218_REG_INT_MASK1, + .status_base = TPS65218_REG_INT1, }; static const struct of_device_id of_tps65218_match_table[] = { diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c index f363972cd77d..e36d10520e24 100644 --- a/drivers/net/can/c_can/c_can_platform.c +++ b/drivers/net/can/c_can/c_can_platform.c @@ -103,27 +103,34 @@ static void c_can_hw_raminit_syscon(const struct c_can_priv *priv, bool enable) mask = 1 << raminit->bits.start | 1 << raminit->bits.done; regmap_read(raminit->syscon, raminit->reg, &ctrl); - /* We clear the done and start bit first. The start bit is + /* We clear the start bit first. The start bit is * looking at the 0 -> transition, but is not self clearing; - * And we clear the init done bit as well. * NOTE: DONE must be written with 1 to clear it. + * We can't clear the DONE bit here using regmap_update_bits() + * as it will bypass the write if initial condition is START:0 DONE:1 + * e.g. on DRA7 which needs START pulse. */ - ctrl &= ~(1 << raminit->bits.start); - ctrl |= 1 << raminit->bits.done; - regmap_write(raminit->syscon, raminit->reg, ctrl); + ctrl &= ~mask; /* START = 0, DONE = 0 */ + regmap_update_bits(raminit->syscon, raminit->reg, mask, ctrl); - ctrl &= ~(1 << raminit->bits.done); - c_can_hw_raminit_wait_syscon(priv, mask, ctrl); + /* check if START bit is 0. Ignore DONE bit for now + * as it can be either 0 or 1. + */ + c_can_hw_raminit_wait_syscon(priv, 1 << raminit->bits.start, ctrl); if (enable) { - /* Set start bit and wait for the done bit. */ + /* Clear DONE bit & set START bit. */ ctrl |= 1 << raminit->bits.start; - regmap_write(raminit->syscon, raminit->reg, ctrl); - + /* DONE must be written with 1 to clear it */ + ctrl |= 1 << raminit->bits.done; + regmap_update_bits(raminit->syscon, raminit->reg, mask, ctrl); + /* prevent further clearing of DONE bit */ + ctrl &= ~(1 << raminit->bits.done); /* clear START bit if start pulse is needed */ if (raminit->needs_pulse) { ctrl &= ~(1 << raminit->bits.start); - regmap_write(raminit->syscon, raminit->reg, ctrl); + regmap_update_bits(raminit->syscon, raminit->reg, + mask, ctrl); } ctrl |= 1 << raminit->bits.done; diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 3ec8f6f25e5f..847c1f813261 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -807,10 +807,14 @@ static int can_changelink(struct net_device *dev, if (dev->flags & IFF_UP) return -EBUSY; cm = nla_data(data[IFLA_CAN_CTRLMODE]); - if (cm->flags & ~priv->ctrlmode_supported) + + /* check whether changed bits are allowed to be modified */ + if (cm->mask & ~priv->ctrlmode_supported) return -EOPNOTSUPP; + + /* clear bits to be modified and copy the flag values */ priv->ctrlmode &= ~cm->mask; - priv->ctrlmode |= cm->flags; + priv->ctrlmode |= (cm->flags & cm->mask); /* CAN_CTRLMODE_FD can only be set when driver supports FD */ if (priv->ctrlmode & CAN_CTRLMODE_FD) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index d7bc462aafdc..244529881be9 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -955,6 +955,11 @@ static struct net_device *alloc_m_can_dev(void) priv->can.data_bittiming_const = &m_can_data_bittiming_const; priv->can.do_set_mode = m_can_set_mode; priv->can.do_get_berr_counter = m_can_get_berr_counter; + + /* CAN_CTRLMODE_FD_NON_ISO is fixed with M_CAN IP v3.0.1 */ + priv->can.ctrlmode = CAN_CTRLMODE_FD_NON_ISO; + + /* CAN_CTRLMODE_FD_NON_ISO can not be changed with M_CAN IP v3.0.1 */ priv->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK | CAN_CTRLMODE_LISTENONLY | CAN_CTRLMODE_BERR_REPORTING | diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 541fb7a05625..c32cd61073bc 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -520,10 +520,10 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev, skb = alloc_can_err_skb(priv->netdev, &cf); if (skb) { cf->can_id |= CAN_ERR_RESTARTED; - netif_rx(skb); stats->rx_packets++; stats->rx_bytes += cf->can_dlc; + netif_rx(skb); } else { netdev_err(priv->netdev, "No memory left for err_skb\n"); @@ -770,10 +770,9 @@ static void kvaser_usb_rx_error(const struct kvaser_usb *dev, priv->can.state = new_state; - netif_rx(skb); - stats->rx_packets++; stats->rx_bytes += cf->can_dlc; + netif_rx(skb); } static void kvaser_usb_rx_can_err(const struct kvaser_usb_net_priv *priv, @@ -805,10 +804,9 @@ static void kvaser_usb_rx_can_err(const struct kvaser_usb_net_priv *priv, stats->rx_over_errors++; stats->rx_errors++; - netif_rx(skb); - stats->rx_packets++; stats->rx_bytes += cf->can_dlc; + netif_rx(skb); } } @@ -887,10 +885,9 @@ static void kvaser_usb_rx_can_msg(const struct kvaser_usb *dev, cf->can_dlc); } - netif_rx(skb); - stats->rx_packets++; stats->rx_bytes += cf->can_dlc; + netif_rx(skb); } static void kvaser_usb_start_chip_reply(const struct kvaser_usb *dev, @@ -1246,6 +1243,9 @@ static int kvaser_usb_close(struct net_device *netdev) if (err) netdev_warn(netdev, "Cannot stop device, error %d\n", err); + /* reset tx contexts */ + kvaser_usb_unlink_tx_urbs(priv); + priv->can.state = CAN_STATE_STOPPED; close_candev(priv->netdev); @@ -1294,12 +1294,14 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, if (!urb) { netdev_err(netdev, "No memory left for URBs\n"); stats->tx_dropped++; - goto nourbmem; + dev_kfree_skb(skb); + return NETDEV_TX_OK; } buf = kmalloc(sizeof(struct kvaser_msg), GFP_ATOMIC); if (!buf) { stats->tx_dropped++; + dev_kfree_skb(skb); goto nobufmem; } @@ -1334,6 +1336,7 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, } } + /* This should never happen; it implies a flow control bug */ if (!context) { netdev_warn(netdev, "cannot find free context\n"); ret = NETDEV_TX_BUSY; @@ -1364,9 +1367,6 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, if (unlikely(err)) { can_free_echo_skb(netdev, context->echo_index); - skb = NULL; /* set to NULL to avoid double free in - * dev_kfree_skb(skb) */ - atomic_dec(&priv->active_tx_urbs); usb_unanchor_urb(urb); @@ -1388,8 +1388,6 @@ releasebuf: kfree(buf); nobufmem: usb_free_urb(urb); -nourbmem: - dev_kfree_skb(skb); return ret; } @@ -1502,6 +1500,10 @@ static int kvaser_usb_init_one(struct usb_interface *intf, struct kvaser_usb_net_priv *priv; int i, err; + err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, channel); + if (err) + return err; + netdev = alloc_candev(sizeof(*priv), MAX_TX_URBS); if (!netdev) { dev_err(&intf->dev, "Cannot alloc candev\n"); @@ -1606,9 +1608,6 @@ static int kvaser_usb_probe(struct usb_interface *intf, usb_set_intfdata(intf, dev); - for (i = 0; i < MAX_NET_DEVICES; i++) - kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, i); - err = kvaser_usb_get_software_info(dev); if (err) { dev_err(&intf->dev, diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 05c6af6c418f..3007d95fbb9f 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -1167,10 +1167,10 @@ static int bgmac_poll(struct napi_struct *napi, int weight) bgmac->int_status = 0; } - if (handled < weight) + if (handled < weight) { napi_complete(napi); - - bgmac_chip_intrs_on(bgmac); + bgmac_chip_intrs_on(bgmac); + } return handled; } @@ -1515,6 +1515,8 @@ static int bgmac_probe(struct bcma_device *core) if (core->bus->sprom.boardflags_lo & BGMAC_BFL_ENETADM) bgmac_warn(bgmac, "Support for ADMtek ethernet switch not implemented\n"); + netif_napi_add(net_dev, &bgmac->napi, bgmac_poll, BGMAC_WEIGHT); + err = bgmac_mii_register(bgmac); if (err) { bgmac_err(bgmac, "Cannot register MDIO\n"); @@ -1529,8 +1531,6 @@ static int bgmac_probe(struct bcma_device *core) netif_carrier_off(net_dev); - netif_napi_add(net_dev, &bgmac->napi, bgmac_poll, BGMAC_WEIGHT); - return 0; err_mii_unregister: @@ -1549,9 +1549,9 @@ static void bgmac_remove(struct bcma_device *core) { struct bgmac *bgmac = bcma_get_drvdata(core); - netif_napi_del(&bgmac->napi); unregister_netdev(bgmac->net_dev); bgmac_mii_unregister(bgmac); + netif_napi_del(&bgmac->napi); bgmac_dma_free(bgmac); bcma_set_drvdata(core, NULL); free_netdev(bgmac->net_dev); diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 41a0a5498da7..d48806b5cd88 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -4383,8 +4383,9 @@ static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, * distinguish various types of transports (VxLAN, GRE, NVGRE ..). So, offload * is expected to work across all types of IP tunnels once exported. Skyhawk * supports offloads for either VxLAN or NVGRE, exclusively. So we export VxLAN - * offloads in hw_enc_features only when a VxLAN port is added. Note this only - * ensures that other tunnels work fine while VxLAN offloads are not enabled. + * offloads in hw_enc_features only when a VxLAN port is added. If other (non + * VxLAN) tunnels are configured while VxLAN offloads are enabled, offloads for + * those other tunnels are unexported on the fly through ndo_features_check(). * * Skyhawk supports VxLAN offloads only for one UDP dport. So, if the stack * adds more than one port, disable offloads and don't re-enable them again @@ -4463,7 +4464,41 @@ static netdev_features_t be_features_check(struct sk_buff *skb, struct net_device *dev, netdev_features_t features) { - return vxlan_features_check(skb, features); + struct be_adapter *adapter = netdev_priv(dev); + u8 l4_hdr = 0; + + /* The code below restricts offload features for some tunneled packets. + * Offload features for normal (non tunnel) packets are unchanged. + */ + if (!skb->encapsulation || + !(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS)) + return features; + + /* It's an encapsulated packet and VxLAN offloads are enabled. We + * should disable tunnel offload features if it's not a VxLAN packet, + * as tunnel offloads have been enabled only for VxLAN. This is done to + * allow other tunneled traffic like GRE work fine while VxLAN + * offloads are configured in Skyhawk-R. + */ + switch (vlan_get_protocol(skb)) { + case htons(ETH_P_IP): + l4_hdr = ip_hdr(skb)->protocol; + break; + case htons(ETH_P_IPV6): + l4_hdr = ipv6_hdr(skb)->nexthdr; + break; + default: + return features; + } + + if (l4_hdr != IPPROTO_UDP || + skb->inner_protocol_type != ENCAP_TYPE_ETHER || + skb->inner_protocol != htons(ETH_P_TEB) || + skb_inner_mac_header(skb) - skb_transport_header(skb) != + sizeof(struct udphdr) + sizeof(struct vxlanhdr)) + return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK); + + return features; } #endif diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index d0d6dc1b8e46..ac6a8f1eea6c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -475,7 +475,8 @@ static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, unsigned char *ad { int err; - if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) + if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN || + priv->mdev->dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) return 0; /* do nothing */ err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn, diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 03e9eb0dc761..6e08352ec994 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1744,8 +1744,7 @@ static void choose_tunnel_offload_mode(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) { if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED && - dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS && - dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC) + dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS) dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN; else dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE; diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c index f5e4b820128b..db0c7a9aee60 100644 --- a/drivers/net/ethernet/neterion/s2io.c +++ b/drivers/net/ethernet/neterion/s2io.c @@ -6987,7 +6987,9 @@ static int s2io_add_isr(struct s2io_nic *sp) if (sp->s2io_entries[i].in_use == MSIX_FLG) { if (sp->s2io_entries[i].type == MSIX_RING_TYPE) { - sprintf(sp->desc[i], "%s:MSI-X-%d-RX", + snprintf(sp->desc[i], + sizeof(sp->desc[i]), + "%s:MSI-X-%d-RX", dev->name, i); err = request_irq(sp->entries[i].vector, s2io_msix_ring_handle, @@ -6996,7 +6998,9 @@ static int s2io_add_isr(struct s2io_nic *sp) sp->s2io_entries[i].arg); } else if (sp->s2io_entries[i].type == MSIX_ALARM_TYPE) { - sprintf(sp->desc[i], "%s:MSI-X-%d-TX", + snprintf(sp->desc[i], + sizeof(sp->desc[i]), + "%s:MSI-X-%d-TX", dev->name, i); err = request_irq(sp->entries[i].vector, s2io_msix_fifo_handle, @@ -8154,7 +8158,8 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) "%s: UDP Fragmentation Offload(UFO) enabled\n", dev->name); /* Initialize device name */ - sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); + snprintf(sp->name, sizeof(sp->name), "%s Neterion %s", dev->name, + sp->product_name); if (vlan_tag_strip) sp->vlan_strip_flag = 1; diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 37583a9d8853..6576243222af 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -498,6 +498,8 @@ static struct sh_eth_cpu_data r8a779x_data = { EESR_ECI, .fdr_value = 0x00000f0f, + .trscer_err_mask = DESC_I_RINT8, + .apr = 1, .mpr = 1, .tpauser = 1, @@ -538,8 +540,6 @@ static struct sh_eth_cpu_data sh7724_data = { EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, - .trscer_err_mask = DESC_I_RINT8, - .apr = 1, .mpr = 1, .tpauser = 1, @@ -1827,6 +1827,9 @@ static int sh_eth_get_settings(struct net_device *ndev, unsigned long flags; int ret; + if (!mdp->phydev) + return -ENODEV; + spin_lock_irqsave(&mdp->lock, flags); ret = phy_ethtool_gset(mdp->phydev, ecmd); spin_unlock_irqrestore(&mdp->lock, flags); @@ -1841,6 +1844,9 @@ static int sh_eth_set_settings(struct net_device *ndev, unsigned long flags; int ret; + if (!mdp->phydev) + return -ENODEV; + spin_lock_irqsave(&mdp->lock, flags); /* disable tx and rx */ @@ -1875,6 +1881,9 @@ static int sh_eth_nway_reset(struct net_device *ndev) unsigned long flags; int ret; + if (!mdp->phydev) + return -ENODEV; + spin_lock_irqsave(&mdp->lock, flags); ret = phy_start_aneg(mdp->phydev); spin_unlock_irqrestore(&mdp->lock, flags); @@ -2184,6 +2193,7 @@ static int sh_eth_close(struct net_device *ndev) if (mdp->phydev) { phy_stop(mdp->phydev); phy_disconnect(mdp->phydev); + mdp->phydev = NULL; } free_irq(ndev->irq, ndev); @@ -2417,7 +2427,7 @@ static int sh_eth_tsu_purge_all(struct net_device *ndev) struct sh_eth_private *mdp = netdev_priv(ndev); int i, ret; - if (unlikely(!mdp->cd->tsu)) + if (!mdp->cd->tsu) return 0; for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++) { @@ -2440,7 +2450,7 @@ static void sh_eth_tsu_purge_mcast(struct net_device *ndev) void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); int i; - if (unlikely(!mdp->cd->tsu)) + if (!mdp->cd->tsu) return; for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) { @@ -2450,8 +2460,8 @@ static void sh_eth_tsu_purge_mcast(struct net_device *ndev) } } -/* Multicast reception directions set */ -static void sh_eth_set_multicast_list(struct net_device *ndev) +/* Update promiscuous flag and multicast filter */ +static void sh_eth_set_rx_mode(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); u32 ecmr_bits; @@ -2462,7 +2472,9 @@ static void sh_eth_set_multicast_list(struct net_device *ndev) /* Initial condition is MCT = 1, PRM = 0. * Depending on ndev->flags, set PRM or clear MCT */ - ecmr_bits = (sh_eth_read(ndev, ECMR) & ~ECMR_PRM) | ECMR_MCT; + ecmr_bits = sh_eth_read(ndev, ECMR) & ~ECMR_PRM; + if (mdp->cd->tsu) + ecmr_bits |= ECMR_MCT; if (!(ndev->flags & IFF_MULTICAST)) { sh_eth_tsu_purge_mcast(ndev); @@ -2491,9 +2503,6 @@ static void sh_eth_set_multicast_list(struct net_device *ndev) } } } - } else { - /* Normal, unicast/broadcast-only mode. */ - ecmr_bits = (ecmr_bits & ~ECMR_PRM) | ECMR_MCT; } /* update the ethernet mode */ @@ -2701,6 +2710,7 @@ static const struct net_device_ops sh_eth_netdev_ops = { .ndo_stop = sh_eth_close, .ndo_start_xmit = sh_eth_start_xmit, .ndo_get_stats = sh_eth_get_stats, + .ndo_set_rx_mode = sh_eth_set_rx_mode, .ndo_tx_timeout = sh_eth_tx_timeout, .ndo_do_ioctl = sh_eth_do_ioctl, .ndo_validate_addr = eth_validate_addr, @@ -2713,7 +2723,7 @@ static const struct net_device_ops sh_eth_netdev_ops_tsu = { .ndo_stop = sh_eth_close, .ndo_start_xmit = sh_eth_start_xmit, .ndo_get_stats = sh_eth_get_stats, - .ndo_set_rx_mode = sh_eth_set_multicast_list, + .ndo_set_rx_mode = sh_eth_set_rx_mode, .ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = sh_eth_vlan_rx_kill_vid, .ndo_tx_timeout = sh_eth_tx_timeout, diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c index 698494481d18..b1a271853d85 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c @@ -474,13 +474,19 @@ static int init_rx_ring(struct net_device *dev, u8 queue_no, /* allocate memory for RX skbuff array */ rx_ring->rx_skbuff_dma = kmalloc_array(rx_rsize, sizeof(dma_addr_t), GFP_KERNEL); - if (rx_ring->rx_skbuff_dma == NULL) - goto dmamem_err; + if (!rx_ring->rx_skbuff_dma) { + dma_free_coherent(priv->device, + rx_rsize * sizeof(struct sxgbe_rx_norm_desc), + rx_ring->dma_rx, rx_ring->dma_rx_phy); + goto error; + } rx_ring->rx_skbuff = kmalloc_array(rx_rsize, sizeof(struct sk_buff *), GFP_KERNEL); - if (rx_ring->rx_skbuff == NULL) - goto rxbuff_err; + if (!rx_ring->rx_skbuff) { + kfree(rx_ring->rx_skbuff_dma); + goto error; + } /* initialise the buffers */ for (desc_index = 0; desc_index < rx_rsize; desc_index++) { @@ -502,13 +508,6 @@ static int init_rx_ring(struct net_device *dev, u8 queue_no, err_init_rx_buffers: while (--desc_index >= 0) free_rx_ring(priv->device, rx_ring, desc_index); - kfree(rx_ring->rx_skbuff); -rxbuff_err: - kfree(rx_ring->rx_skbuff_dma); -dmamem_err: - dma_free_coherent(priv->device, - rx_rsize * sizeof(struct sxgbe_rx_norm_desc), - rx_ring->dma_rx, rx_ring->dma_rx_phy); error: return -ENOMEM; } diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c index 866560ea9e18..b02eed12bfc5 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_platform.c @@ -108,10 +108,6 @@ static int sxgbe_platform_probe(struct platform_device *pdev) } } - /* Get MAC address if available (DT) */ - if (mac) - ether_addr_copy(priv->dev->dev_addr, mac); - priv = sxgbe_drv_probe(&(pdev->dev), plat_dat, addr); if (!priv) { pr_err("%s: main driver probe failed\n", __func__); @@ -125,6 +121,10 @@ static int sxgbe_platform_probe(struct platform_device *pdev) goto err_drv_remove; } + /* Get MAC address if available (DT) */ + if (mac) + ether_addr_copy(priv->dev->dev_addr, mac); + /* Get the TX/RX IRQ numbers */ for (i = 0, chan = 1; i < SXGBE_TX_QUEUES; i++) { priv->txq[i]->irq_no = irq_of_parse_and_map(node, chan++); diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 64d1cef4cda1..e068d48b0f21 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1634,16 +1634,24 @@ static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv, unsigned short vid) { int ret; - int unreg_mcast_mask; + int unreg_mcast_mask = 0; + u32 port_mask; - if (priv->ndev->flags & IFF_ALLMULTI) - unreg_mcast_mask = ALE_ALL_PORTS; - else - unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; + if (priv->data.dual_emac) { + port_mask = (1 << (priv->emac_port + 1)) | ALE_PORT_HOST; + + if (priv->ndev->flags & IFF_ALLMULTI) + unreg_mcast_mask = port_mask; + } else { + port_mask = ALE_ALL_PORTS; + + if (priv->ndev->flags & IFF_ALLMULTI) + unreg_mcast_mask = ALE_ALL_PORTS; + else + unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2; + } - ret = cpsw_ale_add_vlan(priv->ale, vid, - ALE_ALL_PORTS << priv->host_port, - 0, ALE_ALL_PORTS << priv->host_port, + ret = cpsw_ale_add_vlan(priv->ale, vid, port_mask, 0, port_mask, unreg_mcast_mask << priv->host_port); if (ret != 0) return ret; @@ -1654,8 +1662,7 @@ static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv, goto clean_vid; ret = cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast, - ALE_ALL_PORTS << priv->host_port, - ALE_VLAN, vid, 0); + port_mask, ALE_VLAN, vid, 0); if (ret != 0) goto clean_vlan_ucast; return 0; diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index ea712512c7d1..5fae4354722c 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -62,6 +62,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_device.h> +#include <linux/of_mdio.h> #include <linux/of_irq.h> #include <linux/of_net.h> @@ -343,9 +344,7 @@ struct emac_priv { u32 multicast_hash_cnt[EMAC_NUM_MULTICAST_BITS]; u32 rx_addr_type; const char *phy_id; -#ifdef CONFIG_OF struct device_node *phy_node; -#endif struct phy_device *phydev; spinlock_t lock; /*platform specific members*/ @@ -922,6 +921,16 @@ static void emac_int_disable(struct emac_priv *priv) if (priv->int_disable) priv->int_disable(); + /* NOTE: Rx Threshold and Misc interrupts are not enabled */ + + /* ack rxen only then a new pulse will be generated */ + emac_write(EMAC_DM646X_MACEOIVECTOR, + EMAC_DM646X_MAC_EOI_C0_RXEN); + + /* ack txen- only then a new pulse will be generated */ + emac_write(EMAC_DM646X_MACEOIVECTOR, + EMAC_DM646X_MAC_EOI_C0_TXEN); + local_irq_restore(flags); } else { @@ -951,15 +960,6 @@ static void emac_int_enable(struct emac_priv *priv) * register */ /* NOTE: Rx Threshold and Misc interrupts are not enabled */ - - /* ack rxen only then a new pulse will be generated */ - emac_write(EMAC_DM646X_MACEOIVECTOR, - EMAC_DM646X_MAC_EOI_C0_RXEN); - - /* ack txen- only then a new pulse will be generated */ - emac_write(EMAC_DM646X_MACEOIVECTOR, - EMAC_DM646X_MAC_EOI_C0_TXEN); - } else { /* Set DM644x control registers for interrupt control */ emac_ctrl_write(EMAC_CTRL_EWCTL, 0x1); @@ -1537,7 +1537,13 @@ static int emac_dev_open(struct net_device *ndev) int i = 0; struct emac_priv *priv = netdev_priv(ndev); - pm_runtime_get(&priv->pdev->dev); + ret = pm_runtime_get_sync(&priv->pdev->dev); + if (ret < 0) { + pm_runtime_put_noidle(&priv->pdev->dev); + dev_err(&priv->pdev->dev, "%s: failed to get_sync(%d)\n", + __func__, ret); + return ret; + } netif_carrier_off(ndev); for (cnt = 0; cnt < ETH_ALEN; cnt++) @@ -1596,8 +1602,20 @@ static int emac_dev_open(struct net_device *ndev) cpdma_ctlr_start(priv->dma); priv->phydev = NULL; + + if (priv->phy_node) { + priv->phydev = of_phy_connect(ndev, priv->phy_node, + &emac_adjust_link, 0, 0); + if (!priv->phydev) { + dev_err(emac_dev, "could not connect to phy %s\n", + priv->phy_node->full_name); + ret = -ENODEV; + goto err; + } + } + /* use the first phy on the bus if pdata did not give us a phy id */ - if (!priv->phy_id) { + if (!priv->phydev && !priv->phy_id) { struct device *phy; phy = bus_find_device(&mdio_bus_type, NULL, NULL, @@ -1606,7 +1624,7 @@ static int emac_dev_open(struct net_device *ndev) priv->phy_id = dev_name(phy); } - if (priv->phy_id && *priv->phy_id) { + if (!priv->phydev && priv->phy_id && *priv->phy_id) { priv->phydev = phy_connect(ndev, priv->phy_id, &emac_adjust_link, PHY_INTERFACE_MODE_MII); @@ -1627,7 +1645,9 @@ static int emac_dev_open(struct net_device *ndev) "(mii_bus:phy_addr=%s, id=%x)\n", priv->phydev->drv->name, dev_name(&priv->phydev->dev), priv->phydev->phy_id); - } else { + } + + if (!priv->phydev) { /* No PHY , fix the link, speed and duplex settings */ dev_notice(emac_dev, "no phy, defaulting to 100/full\n"); priv->link = 1; @@ -1724,6 +1744,15 @@ static struct net_device_stats *emac_dev_getnetstats(struct net_device *ndev) struct emac_priv *priv = netdev_priv(ndev); u32 mac_control; u32 stats_clear_mask; + int err; + + err = pm_runtime_get_sync(&priv->pdev->dev); + if (err < 0) { + pm_runtime_put_noidle(&priv->pdev->dev); + dev_err(&priv->pdev->dev, "%s: failed to get_sync(%d)\n", + __func__, err); + return &ndev->stats; + } /* update emac hardware stats and reset the registers*/ @@ -1766,6 +1795,8 @@ static struct net_device_stats *emac_dev_getnetstats(struct net_device *ndev) ndev->stats.tx_fifo_errors += emac_read(EMAC_TXUNDERRUN); emac_write(EMAC_TXUNDERRUN, stats_clear_mask); + pm_runtime_put(&priv->pdev->dev); + return &ndev->stats; } @@ -1859,7 +1890,7 @@ davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv) static int davinci_emac_probe(struct platform_device *pdev) { int rc = 0; - struct resource *res; + struct resource *res, *res_ctrl; struct net_device *ndev; struct emac_priv *priv; unsigned long hw_ram_addr; @@ -1876,6 +1907,7 @@ static int davinci_emac_probe(struct platform_device *pdev) return -EBUSY; } emac_bus_frequency = clk_get_rate(emac_clk); + devm_clk_put(&pdev->dev, emac_clk); /* TODO: Probe PHY here if possible */ @@ -1917,11 +1949,20 @@ static int davinci_emac_probe(struct platform_device *pdev) rc = PTR_ERR(priv->remap_addr); goto no_pdata; } + + res_ctrl = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (res_ctrl) { + priv->ctrl_base = + devm_ioremap_resource(&pdev->dev, res_ctrl); + if (IS_ERR(priv->ctrl_base)) + goto no_pdata; + } else { + priv->ctrl_base = priv->remap_addr + pdata->ctrl_mod_reg_offset; + } + priv->emac_base = priv->remap_addr + pdata->ctrl_reg_offset; ndev->base_addr = (unsigned long)priv->remap_addr; - priv->ctrl_base = priv->remap_addr + pdata->ctrl_mod_reg_offset; - hw_ram_addr = pdata->hw_ram_addr; if (!hw_ram_addr) hw_ram_addr = (u32 __force)res->start + pdata->ctrl_ram_offset; @@ -1980,12 +2021,22 @@ static int davinci_emac_probe(struct platform_device *pdev) ndev->ethtool_ops = ðtool_ops; netif_napi_add(ndev, &priv->napi, emac_poll, EMAC_POLL_WEIGHT); + pm_runtime_enable(&pdev->dev); + rc = pm_runtime_get_sync(&pdev->dev); + if (rc < 0) { + pm_runtime_put_noidle(&pdev->dev); + dev_err(&pdev->dev, "%s: failed to get_sync(%d)\n", + __func__, rc); + goto no_cpdma_chan; + } + /* register the network device */ SET_NETDEV_DEV(ndev, &pdev->dev); rc = register_netdev(ndev); if (rc) { dev_err(&pdev->dev, "error in register_netdev\n"); rc = -ENODEV; + pm_runtime_put(&pdev->dev); goto no_cpdma_chan; } @@ -1995,9 +2046,7 @@ static int davinci_emac_probe(struct platform_device *pdev) "(regs: %p, irq: %d)\n", (void *)priv->emac_base_phys, ndev->irq); } - - pm_runtime_enable(&pdev->dev); - pm_runtime_resume(&pdev->dev); + pm_runtime_put(&pdev->dev); return 0; @@ -2071,9 +2120,14 @@ static const struct emac_platform_data am3517_emac_data = { .hw_ram_addr = 0x01e20000, }; +static const struct emac_platform_data dm816_emac_data = { + .version = EMAC_VERSION_2, +}; + static const struct of_device_id davinci_emac_of_match[] = { {.compatible = "ti,davinci-dm6467-emac", }, {.compatible = "ti,am3517-emac", .data = &am3517_emac_data, }, + {.compatible = "ti,dm816-emac", .data = &dm816_emac_data, }, {}, }; MODULE_DEVICE_TABLE(of, davinci_emac_of_match); diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 57ec23e8ccfa..bf405f134d3a 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -833,9 +833,6 @@ static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data) index &= ~3; } - generic_ocp_read(tp, index, sizeof(tmp), &tmp, type); - - data |= __le32_to_cpu(tmp) & ~mask; tmp = __cpu_to_le32(data); generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type); @@ -874,9 +871,6 @@ static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data) index &= ~3; } - generic_ocp_read(tp, index, sizeof(tmp), &tmp, type); - - data |= __le32_to_cpu(tmp) & ~mask; tmp = __cpu_to_le32(data); generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type); @@ -926,12 +920,6 @@ static void sram_write(struct r8152 *tp, u16 addr, u16 data) ocp_reg_write(tp, OCP_SRAM_DATA, data); } -static u16 sram_read(struct r8152 *tp, u16 addr) -{ - ocp_reg_write(tp, OCP_SRAM_ADDR, addr); - return ocp_reg_read(tp, OCP_SRAM_DATA); -} - static int read_mii_word(struct net_device *netdev, int phy_id, int reg) { struct r8152 *tp = netdev_priv(netdev); @@ -2518,24 +2506,18 @@ static void r8153_hw_phy_cfg(struct r8152 *tp) data = ocp_reg_read(tp, OCP_POWER_CFG); data |= EN_10M_PLLOFF; ocp_reg_write(tp, OCP_POWER_CFG, data); - data = sram_read(tp, SRAM_IMPEDANCE); - data &= ~RX_DRIVING_MASK; - sram_write(tp, SRAM_IMPEDANCE, data); + sram_write(tp, SRAM_IMPEDANCE, 0x0b13); ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR); ocp_data |= PFM_PWM_SWITCH; ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data); - data = sram_read(tp, SRAM_LPF_CFG); - data |= LPF_AUTO_TUNE; - sram_write(tp, SRAM_LPF_CFG, data); + /* Enable LPF corner auto tune */ + sram_write(tp, SRAM_LPF_CFG, 0xf70f); - data = sram_read(tp, SRAM_10M_AMP1); - data |= GDAC_IB_UPALL; - sram_write(tp, SRAM_10M_AMP1, data); - data = sram_read(tp, SRAM_10M_AMP2); - data |= AMP_DN; - sram_write(tp, SRAM_10M_AMP2, data); + /* Adjust 10M Amplitude */ + sram_write(tp, SRAM_10M_AMP1, 0x00af); + sram_write(tp, SRAM_10M_AMP2, 0x0208); set_bit(PHY_RESET, &tp->flags); } diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index ea63fbd228ed..352b4f28f82c 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -114,17 +114,6 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov, ret = of_overlay_apply_one(ov, tchild, child); if (ret) return ret; - - /* The properties are already copied, now do the child nodes */ - for_each_child_of_node(child, grandchild) { - ret = of_overlay_apply_single_device_node(ov, tchild, grandchild); - if (ret) { - pr_err("%s: Failed to apply single node @%s/%s\n", - __func__, tchild->full_name, - grandchild->name); - return ret; - } - } } return ret; diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 5b33c6a21807..b0d50d70a8a1 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -188,7 +188,7 @@ static void of_dma_configure(struct device *dev) size = dev->coherent_dma_mask; } else { offset = PFN_DOWN(paddr - dma_addr); - dev_dbg(dev, "dma_pfn_offset(%#08lx)\n", dev->dma_pfn_offset); + dev_dbg(dev, "dma_pfn_offset(%#08lx)\n", offset); } dev->dma_pfn_offset = offset; @@ -566,6 +566,10 @@ static int of_platform_notify(struct notifier_block *nb, if (!of_node_check_flag(rd->dn->parent, OF_POPULATED_BUS)) return NOTIFY_OK; /* not for us */ + /* already populated? (driver using of_populate manually) */ + if (of_node_check_flag(rd->dn, OF_POPULATED)) + return NOTIFY_OK; + /* pdev_parent may be NULL when no bus platform device */ pdev_parent = of_find_device_by_node(rd->dn->parent); pdev = of_platform_device_create(rd->dn, NULL, @@ -581,6 +585,11 @@ static int of_platform_notify(struct notifier_block *nb, break; case OF_RECONFIG_CHANGE_REMOVE: + + /* already depopulated? */ + if (!of_node_check_flag(rd->dn, OF_POPULATED)) + return NOTIFY_OK; + /* find our device by node */ pdev = of_find_device_by_node(rd->dn); if (pdev == NULL) diff --git a/drivers/of/unittest-data/tests-overlay.dtsi b/drivers/of/unittest-data/tests-overlay.dtsi index 75976da22b2e..a2b687d5f324 100644 --- a/drivers/of/unittest-data/tests-overlay.dtsi +++ b/drivers/of/unittest-data/tests-overlay.dtsi @@ -176,5 +176,60 @@ }; }; + overlay10 { + fragment@0 { + target-path = "/testcase-data/overlay-node/test-bus"; + __overlay__ { + + /* suppress DTC warning */ + #address-cells = <1>; + #size-cells = <0>; + + test-selftest10 { + compatible = "selftest"; + status = "okay"; + reg = <10>; + + #address-cells = <1>; + #size-cells = <0>; + + test-selftest101 { + compatible = "selftest"; + status = "okay"; + reg = <1>; + }; + + }; + }; + }; + }; + + overlay11 { + fragment@0 { + target-path = "/testcase-data/overlay-node/test-bus"; + __overlay__ { + + /* suppress DTC warning */ + #address-cells = <1>; + #size-cells = <0>; + + test-selftest11 { + compatible = "selftest"; + status = "okay"; + reg = <11>; + + #address-cells = <1>; + #size-cells = <0>; + + test-selftest111 { + compatible = "selftest"; + status = "okay"; + reg = <1>; + }; + + }; + }; + }; + }; }; }; diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 844838e11ef1..41a4a138f53b 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -978,6 +978,9 @@ static int selftest_probe(struct platform_device *pdev) } dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name); + + of_platform_populate(np, NULL, NULL, &pdev->dev); + return 0; } @@ -1385,6 +1388,39 @@ static void of_selftest_overlay_8(void) selftest(1, "overlay test %d passed\n", 8); } +/* test insertion of a bus with parent devices */ +static void of_selftest_overlay_10(void) +{ + int ret; + char *child_path; + + /* device should disable */ + ret = of_selftest_apply_overlay_check(10, 10, 0, 1); + if (selftest(ret == 0, "overlay test %d failed; overlay application\n", 10)) + return; + + child_path = kasprintf(GFP_KERNEL, "%s/test-selftest101", + selftest_path(10)); + if (selftest(child_path, "overlay test %d failed; kasprintf\n", 10)) + return; + + ret = of_path_platform_device_exists(child_path); + kfree(child_path); + if (selftest(ret, "overlay test %d failed; no child device\n", 10)) + return; +} + +/* test insertion of a bus with parent devices (and revert) */ +static void of_selftest_overlay_11(void) +{ + int ret; + + /* device should disable */ + ret = of_selftest_apply_revert_overlay_check(11, 11, 0, 1); + if (selftest(ret == 0, "overlay test %d failed; overlay application\n", 11)) + return; +} + static void __init of_selftest_overlay(void) { struct device_node *bus_np = NULL; @@ -1433,6 +1469,9 @@ static void __init of_selftest_overlay(void) of_selftest_overlay_6(); of_selftest_overlay_8(); + of_selftest_overlay_10(); + of_selftest_overlay_11(); + out: of_node_put(bus_np); } diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index 37e71ff6408d..dceb9ddfd99a 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -694,9 +694,8 @@ lba_fixup_bus(struct pci_bus *bus) int i; /* PCI-PCI Bridge */ pci_read_bridge_bases(bus); - for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) { - pci_claim_resource(bus->self, i); - } + for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) + pci_claim_bridge_resource(bus->self, i); } else { /* Host-PCI Bridge */ int err; diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 73aef51a28f0..8fb16188cd82 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -228,6 +228,49 @@ int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, } EXPORT_SYMBOL(pci_bus_alloc_resource); +/* + * The @idx resource of @dev should be a PCI-PCI bridge window. If this + * resource fits inside a window of an upstream bridge, do nothing. If it + * overlaps an upstream window but extends outside it, clip the resource so + * it fits completely inside. + */ +bool pci_bus_clip_resource(struct pci_dev *dev, int idx) +{ + struct pci_bus *bus = dev->bus; + struct resource *res = &dev->resource[idx]; + struct resource orig_res = *res; + struct resource *r; + int i; + + pci_bus_for_each_resource(bus, r, i) { + resource_size_t start, end; + + if (!r) + continue; + + if (resource_type(res) != resource_type(r)) + continue; + + start = max(r->start, res->start); + end = min(r->end, res->end); + + if (start > end) + continue; /* no overlap */ + + if (res->start == start && res->end == end) + return false; /* no change */ + + res->start = start; + res->end = end; + dev_printk(KERN_DEBUG, &dev->dev, "%pR clipped to %pR\n", + &orig_res, res); + + return true; + } + + return false; +} + void __weak pcibios_resource_survey_bus(struct pci_bus *bus) { } /** diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index cab05f31223f..e9d4fd861ba1 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -3271,7 +3271,8 @@ static int pci_parent_bus_reset(struct pci_dev *dev, int probe) { struct pci_dev *pdev; - if (pci_is_root_bus(dev->bus) || dev->subordinate || !dev->bus->self) + if (pci_is_root_bus(dev->bus) || dev->subordinate || + !dev->bus->self || dev->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET) return -ENOTTY; list_for_each_entry(pdev, &dev->bus->devices, bus_list) @@ -3305,7 +3306,8 @@ static int pci_dev_reset_slot_function(struct pci_dev *dev, int probe) { struct pci_dev *pdev; - if (dev->subordinate || !dev->slot) + if (dev->subordinate || !dev->slot || + dev->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET) return -ENOTTY; list_for_each_entry(pdev, &dev->bus->devices, bus_list) @@ -3557,6 +3559,20 @@ int pci_try_reset_function(struct pci_dev *dev) } EXPORT_SYMBOL_GPL(pci_try_reset_function); +/* Do any devices on or below this bus prevent a bus reset? */ +static bool pci_bus_resetable(struct pci_bus *bus) +{ + struct pci_dev *dev; + + list_for_each_entry(dev, &bus->devices, bus_list) { + if (dev->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET || + (dev->subordinate && !pci_bus_resetable(dev->subordinate))) + return false; + } + + return true; +} + /* Lock devices from the top of the tree down */ static void pci_bus_lock(struct pci_bus *bus) { @@ -3607,6 +3623,22 @@ unlock: return 0; } +/* Do any devices on or below this slot prevent a bus reset? */ +static bool pci_slot_resetable(struct pci_slot *slot) +{ + struct pci_dev *dev; + + list_for_each_entry(dev, &slot->bus->devices, bus_list) { + if (!dev->slot || dev->slot != slot) + continue; + if (dev->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET || + (dev->subordinate && !pci_bus_resetable(dev->subordinate))) + return false; + } + + return true; +} + /* Lock devices from the top of the tree down */ static void pci_slot_lock(struct pci_slot *slot) { @@ -3728,7 +3760,7 @@ static int pci_slot_reset(struct pci_slot *slot, int probe) { int rc; - if (!slot) + if (!slot || !pci_slot_resetable(slot)) return -ENOTTY; if (!probe) @@ -3820,7 +3852,7 @@ EXPORT_SYMBOL_GPL(pci_try_reset_slot); static int pci_bus_reset(struct pci_bus *bus, int probe) { - if (!bus->self) + if (!bus->self || !pci_bus_resetable(bus)) return -ENOTTY; if (probe) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 8aff29a804ff..d54632a1db43 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -208,6 +208,7 @@ void __pci_bus_size_bridges(struct pci_bus *bus, void __pci_bus_assign_resources(const struct pci_bus *bus, struct list_head *realloc_head, struct list_head *fail_head); +bool pci_bus_clip_resource(struct pci_dev *dev, int idx); /** * pci_ari_enabled - query ARI forwarding status diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ed6f89b6efe5..e52356aa09b8 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3028,6 +3028,20 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8169, DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID, quirk_broken_intx_masking); +static void quirk_no_bus_reset(struct pci_dev *dev) +{ + dev->dev_flags |= PCI_DEV_FLAGS_NO_BUS_RESET; +} + +/* + * Atheros AR93xx chips do not behave after a bus reset. The device will + * throw a Link Down error on AER-capable systems and regardless of AER, + * config space of the device is never accessible again and typically + * causes the system to hang or reset when access is attempted. + * http://www.spinics.net/lists/linux-pci/msg34797.html + */ +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset); + #ifdef CONFIG_ACPI /* * Apple: Shutdown Cactus Ridge Thunderbolt controller. diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 0482235eee92..e3e17f3c0f0f 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -530,9 +530,8 @@ EXPORT_SYMBOL(pci_setup_cardbus); config space writes, so it's quite possible that an I/O window of the bridge will have some undesirable address (e.g. 0) after the first write. Ditto 64-bit prefetchable MMIO. */ -static void pci_setup_bridge_io(struct pci_bus *bus) +static void pci_setup_bridge_io(struct pci_dev *bridge) { - struct pci_dev *bridge = bus->self; struct resource *res; struct pci_bus_region region; unsigned long io_mask; @@ -545,7 +544,7 @@ static void pci_setup_bridge_io(struct pci_bus *bus) io_mask = PCI_IO_1K_RANGE_MASK; /* Set up the top and bottom of the PCI I/O segment for this bus. */ - res = bus->resource[0]; + res = &bridge->resource[PCI_BRIDGE_RESOURCES + 0]; pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_IO) { pci_read_config_word(bridge, PCI_IO_BASE, &l); @@ -568,15 +567,14 @@ static void pci_setup_bridge_io(struct pci_bus *bus) pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, io_upper16); } -static void pci_setup_bridge_mmio(struct pci_bus *bus) +static void pci_setup_bridge_mmio(struct pci_dev *bridge) { - struct pci_dev *bridge = bus->self; struct resource *res; struct pci_bus_region region; u32 l; /* Set up the top and bottom of the PCI Memory segment for this bus. */ - res = bus->resource[1]; + res = &bridge->resource[PCI_BRIDGE_RESOURCES + 1]; pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_MEM) { l = (region.start >> 16) & 0xfff0; @@ -588,9 +586,8 @@ static void pci_setup_bridge_mmio(struct pci_bus *bus) pci_write_config_dword(bridge, PCI_MEMORY_BASE, l); } -static void pci_setup_bridge_mmio_pref(struct pci_bus *bus) +static void pci_setup_bridge_mmio_pref(struct pci_dev *bridge) { - struct pci_dev *bridge = bus->self; struct resource *res; struct pci_bus_region region; u32 l, bu, lu; @@ -602,7 +599,7 @@ static void pci_setup_bridge_mmio_pref(struct pci_bus *bus) /* Set up PREF base/limit. */ bu = lu = 0; - res = bus->resource[2]; + res = &bridge->resource[PCI_BRIDGE_RESOURCES + 2]; pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_PREFETCH) { l = (region.start >> 16) & 0xfff0; @@ -630,13 +627,13 @@ static void __pci_setup_bridge(struct pci_bus *bus, unsigned long type) &bus->busn_res); if (type & IORESOURCE_IO) - pci_setup_bridge_io(bus); + pci_setup_bridge_io(bridge); if (type & IORESOURCE_MEM) - pci_setup_bridge_mmio(bus); + pci_setup_bridge_mmio(bridge); if (type & IORESOURCE_PREFETCH) - pci_setup_bridge_mmio_pref(bus); + pci_setup_bridge_mmio_pref(bridge); pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, bus->bridge_ctl); } @@ -649,6 +646,41 @@ void pci_setup_bridge(struct pci_bus *bus) __pci_setup_bridge(bus, type); } + +int pci_claim_bridge_resource(struct pci_dev *bridge, int i) +{ + if (i < PCI_BRIDGE_RESOURCES || i > PCI_BRIDGE_RESOURCE_END) + return 0; + + if (pci_claim_resource(bridge, i) == 0) + return 0; /* claimed the window */ + + if ((bridge->class >> 8) != PCI_CLASS_BRIDGE_PCI) + return 0; + + if (!pci_bus_clip_resource(bridge, i)) + return -EINVAL; /* clipping didn't change anything */ + + switch (i - PCI_BRIDGE_RESOURCES) { + case 0: + pci_setup_bridge_io(bridge); + break; + case 1: + pci_setup_bridge_mmio(bridge); + break; + case 2: + pci_setup_bridge_mmio_pref(bridge); + break; + default: + return -EINVAL; + } + + if (pci_claim_resource(bridge, i) == 0) + return 0; /* claimed a smaller window */ + + return -EINVAL; +} + /* Check whether the bridge supports optional I/O and prefetchable memory ranges. If not, the respective base/limit registers must be read-only and read as 0. */ diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index e4f65510c87e..89dca77ca038 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1801,14 +1801,15 @@ void pinctrl_unregister(struct pinctrl_dev *pctldev) if (pctldev == NULL) return; - mutex_lock(&pinctrldev_list_mutex); mutex_lock(&pctldev->mutex); - pinctrl_remove_device_debugfs(pctldev); + mutex_unlock(&pctldev->mutex); if (!IS_ERR(pctldev->p)) pinctrl_put(pctldev->p); + mutex_lock(&pinctrldev_list_mutex); + mutex_lock(&pctldev->mutex); /* TODO: check that no pinmuxes are still active? */ list_del(&pctldev->node); /* Destroy descriptor tree */ diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 3c22dbebc80f..43eacc924b7e 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -1398,10 +1398,7 @@ static void rockchip_irq_demux(unsigned int irq, struct irq_desc *desc) { struct irq_chip *chip = irq_get_chip(irq); struct rockchip_pin_bank *bank = irq_get_handler_data(irq); - u32 polarity = 0, data = 0; u32 pend; - bool edge_changed = false; - unsigned long flags; dev_dbg(bank->drvdata->dev, "got irq for bank %s\n", bank->name); @@ -1409,12 +1406,6 @@ static void rockchip_irq_demux(unsigned int irq, struct irq_desc *desc) pend = readl_relaxed(bank->reg_base + GPIO_INT_STATUS); - if (bank->toggle_edge_mode) { - polarity = readl_relaxed(bank->reg_base + - GPIO_INT_POLARITY); - data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT); - } - while (pend) { unsigned int virq; @@ -1434,27 +1425,31 @@ static void rockchip_irq_demux(unsigned int irq, struct irq_desc *desc) * needs manual intervention. */ if (bank->toggle_edge_mode & BIT(irq)) { - if (data & BIT(irq)) - polarity &= ~BIT(irq); - else - polarity |= BIT(irq); + u32 data, data_old, polarity; + unsigned long flags; - edge_changed = true; - } + data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT); + do { + spin_lock_irqsave(&bank->slock, flags); - generic_handle_irq(virq); - } + polarity = readl_relaxed(bank->reg_base + + GPIO_INT_POLARITY); + if (data & BIT(irq)) + polarity &= ~BIT(irq); + else + polarity |= BIT(irq); + writel(polarity, + bank->reg_base + GPIO_INT_POLARITY); - if (bank->toggle_edge_mode && edge_changed) { - /* Interrupt params should only be set with ints disabled */ - spin_lock_irqsave(&bank->slock, flags); + spin_unlock_irqrestore(&bank->slock, flags); - data = readl_relaxed(bank->reg_base + GPIO_INTEN); - writel_relaxed(0, bank->reg_base + GPIO_INTEN); - writel(polarity, bank->reg_base + GPIO_INT_POLARITY); - writel(data, bank->reg_base + GPIO_INTEN); + data_old = data; + data = readl_relaxed(bank->reg_base + + GPIO_EXT_PORT); + } while ((data & BIT(irq)) != (data_old & BIT(irq))); + } - spin_unlock_irqrestore(&bank->slock, flags); + generic_handle_irq(virq); } chained_irq_exit(chip, desc); diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c index c5cef59f5965..779950c62e53 100644 --- a/drivers/pinctrl/pinctrl-xway.c +++ b/drivers/pinctrl/pinctrl-xway.c @@ -798,10 +798,8 @@ static int pinmux_xway_probe(struct platform_device *pdev) /* load the gpio chip */ xway_chip.dev = &pdev->dev; - of_gpiochip_add(&xway_chip); ret = gpiochip_add(&xway_chip); if (ret) { - of_gpiochip_remove(&xway_chip); dev_err(&pdev->dev, "Failed to register gpio chip\n"); return ret; } diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index e730935fa457..ed7017df065d 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -865,10 +865,10 @@ static int msm_ps_hold_restart(struct notifier_block *nb, unsigned long action, static void msm_pinctrl_setup_pm_reset(struct msm_pinctrl *pctrl) { - int i = 0; + int i; const struct msm_function *func = pctrl->soc->functions; - for (; i <= pctrl->soc->nfunctions; i++) + for (i = 0; i < pctrl->soc->nfunctions; i++) if (!strcmp(func[i].name, "ps_hold")) { pctrl->restart_nb.notifier_call = msm_ps_hold_restart; pctrl->restart_nb.priority = 128; |