diff options
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-uniphier.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-uniphier.c | 34 |
1 files changed, 13 insertions, 21 deletions
diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c index 7e8bad326770..d05be942956e 100644 --- a/drivers/pci/controller/dwc/pcie-uniphier.c +++ b/drivers/pci/controller/dwc/pcie-uniphier.c @@ -168,30 +168,21 @@ static void uniphier_pcie_irq_enable(struct uniphier_pcie_priv *priv) writel(PCL_RCV_INTX_ALL_ENABLE, priv->base + PCL_RCV_INTX); } -static void uniphier_pcie_irq_ack(struct irq_data *d) -{ - struct pcie_port *pp = irq_data_get_irq_chip_data(d); - struct dw_pcie *pci = to_dw_pcie_from_pp(pp); - struct uniphier_pcie_priv *priv = to_uniphier_pcie(pci); - u32 val; - - val = readl(priv->base + PCL_RCV_INTX); - val &= ~PCL_RCV_INTX_ALL_STATUS; - val |= BIT(irqd_to_hwirq(d) + PCL_RCV_INTX_STATUS_SHIFT); - writel(val, priv->base + PCL_RCV_INTX); -} - static void uniphier_pcie_irq_mask(struct irq_data *d) { struct pcie_port *pp = irq_data_get_irq_chip_data(d); struct dw_pcie *pci = to_dw_pcie_from_pp(pp); struct uniphier_pcie_priv *priv = to_uniphier_pcie(pci); + unsigned long flags; u32 val; + raw_spin_lock_irqsave(&pp->lock, flags); + val = readl(priv->base + PCL_RCV_INTX); - val &= ~PCL_RCV_INTX_ALL_MASK; val |= BIT(irqd_to_hwirq(d) + PCL_RCV_INTX_MASK_SHIFT); writel(val, priv->base + PCL_RCV_INTX); + + raw_spin_unlock_irqrestore(&pp->lock, flags); } static void uniphier_pcie_irq_unmask(struct irq_data *d) @@ -199,17 +190,20 @@ static void uniphier_pcie_irq_unmask(struct irq_data *d) struct pcie_port *pp = irq_data_get_irq_chip_data(d); struct dw_pcie *pci = to_dw_pcie_from_pp(pp); struct uniphier_pcie_priv *priv = to_uniphier_pcie(pci); + unsigned long flags; u32 val; + raw_spin_lock_irqsave(&pp->lock, flags); + val = readl(priv->base + PCL_RCV_INTX); - val &= ~PCL_RCV_INTX_ALL_MASK; val &= ~BIT(irqd_to_hwirq(d) + PCL_RCV_INTX_MASK_SHIFT); writel(val, priv->base + PCL_RCV_INTX); + + raw_spin_unlock_irqrestore(&pp->lock, flags); } static struct irq_chip uniphier_pcie_irq_chip = { .name = "PCI", - .irq_ack = uniphier_pcie_irq_ack, .irq_mask = uniphier_pcie_irq_mask, .irq_unmask = uniphier_pcie_irq_unmask, }; @@ -235,7 +229,7 @@ static void uniphier_pcie_irq_handler(struct irq_desc *desc) struct uniphier_pcie_priv *priv = to_uniphier_pcie(pci); struct irq_chip *chip = irq_desc_get_chip(desc); unsigned long reg; - u32 val, bit, virq; + u32 val, bit; /* INT for debug */ val = readl(priv->base + PCL_RCV_INT); @@ -257,10 +251,8 @@ static void uniphier_pcie_irq_handler(struct irq_desc *desc) val = readl(priv->base + PCL_RCV_INTX); reg = FIELD_GET(PCL_RCV_INTX_ALL_STATUS, val); - for_each_set_bit(bit, ®, PCI_NUM_INTX) { - virq = irq_linear_revmap(priv->legacy_irq_domain, bit); - generic_handle_irq(virq); - } + for_each_set_bit(bit, ®, PCI_NUM_INTX) + generic_handle_domain_irq(priv->legacy_irq_domain, bit); chained_irq_exit(chip, desc); } |