diff options
Diffstat (limited to 'drivers/net/ipa/ipa_interrupt.c')
| -rw-r--r-- | drivers/net/ipa/ipa_interrupt.c | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/drivers/net/ipa/ipa_interrupt.c b/drivers/net/ipa/ipa_interrupt.c index 307bed2ee707..c269432f9c2e 100644 --- a/drivers/net/ipa/ipa_interrupt.c +++ b/drivers/net/ipa/ipa_interrupt.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved. - * Copyright (C) 2018-2020 Linaro Ltd. + * Copyright (C) 2018-2022 Linaro Ltd. */ /* DOC: IPA Interrupts @@ -53,13 +53,15 @@ static void ipa_interrupt_process(struct ipa_interrupt *interrupt, u32 irq_id) { bool uc_irq = ipa_interrupt_uc(interrupt, irq_id); struct ipa *ipa = interrupt->ipa; + const struct ipa_reg *reg; u32 mask = BIT(irq_id); u32 offset; /* For microcontroller interrupts, clear the interrupt right away, * "to avoid clearing unhandled interrupts." */ - offset = ipa_reg_irq_clr_offset(ipa->version); + reg = ipa_reg(ipa, IPA_IRQ_CLR); + offset = ipa_reg_offset(reg); if (uc_irq) iowrite32(mask, ipa->reg_virt + offset); @@ -80,6 +82,7 @@ static irqreturn_t ipa_isr_thread(int irq, void *dev_id) struct ipa_interrupt *interrupt = dev_id; struct ipa *ipa = interrupt->ipa; u32 enabled = interrupt->enabled; + const struct ipa_reg *reg; struct device *dev; u32 pending; u32 offset; @@ -95,7 +98,8 @@ static irqreturn_t ipa_isr_thread(int irq, void *dev_id) * including conditions whose interrupt is not enabled. Handle * only the enabled ones. */ - offset = ipa_reg_irq_stts_offset(ipa->version); + reg = ipa_reg(ipa, IPA_IRQ_STTS); + offset = ipa_reg_offset(reg); pending = ioread32(ipa->reg_virt + offset); while ((mask = pending & enabled)) { do { @@ -112,7 +116,8 @@ static irqreturn_t ipa_isr_thread(int irq, void *dev_id) if (pending) { dev_dbg(dev, "clearing disabled IPA interrupts 0x%08x\n", pending); - offset = ipa_reg_irq_clr_offset(ipa->version); + reg = ipa_reg(ipa, IPA_IRQ_CLR); + offset = ipa_reg_offset(reg); iowrite32(pending, ipa->reg_virt + offset); } out_power_put: @@ -128,6 +133,7 @@ static void ipa_interrupt_suspend_control(struct ipa_interrupt *interrupt, { struct ipa *ipa = interrupt->ipa; u32 mask = BIT(endpoint_id); + const struct ipa_reg *reg; u32 offset; u32 val; @@ -137,7 +143,8 @@ static void ipa_interrupt_suspend_control(struct ipa_interrupt *interrupt, if (ipa->version == IPA_VERSION_3_0) return; - offset = ipa_reg_irq_suspend_en_offset(ipa->version); + reg = ipa_reg(ipa, IRQ_SUSPEND_EN); + offset = ipa_reg_offset(reg); val = ioread32(ipa->reg_virt + offset); if (enable) val |= mask; @@ -164,18 +171,18 @@ ipa_interrupt_suspend_disable(struct ipa_interrupt *interrupt, u32 endpoint_id) void ipa_interrupt_suspend_clear_all(struct ipa_interrupt *interrupt) { struct ipa *ipa = interrupt->ipa; - u32 offset; + const struct ipa_reg *reg; u32 val; - offset = ipa_reg_irq_suspend_info_offset(ipa->version); - val = ioread32(ipa->reg_virt + offset); + reg = ipa_reg(ipa, IRQ_SUSPEND_INFO); + val = ioread32(ipa->reg_virt + ipa_reg_offset(reg)); /* SUSPEND interrupt status isn't cleared on IPA version 3.0 */ if (ipa->version == IPA_VERSION_3_0) return; - offset = ipa_reg_irq_suspend_clr_offset(ipa->version); - iowrite32(val, ipa->reg_virt + offset); + reg = ipa_reg(ipa, IRQ_SUSPEND_CLR); + iowrite32(val, ipa->reg_virt + ipa_reg_offset(reg)); } /* Simulate arrival of an IPA TX_SUSPEND interrupt */ @@ -189,7 +196,7 @@ void ipa_interrupt_add(struct ipa_interrupt *interrupt, enum ipa_irq_id ipa_irq, ipa_irq_handler_t handler) { struct ipa *ipa = interrupt->ipa; - u32 offset; + const struct ipa_reg *reg; if (WARN_ON(ipa_irq >= IPA_IRQ_COUNT)) return; @@ -198,8 +205,9 @@ void ipa_interrupt_add(struct ipa_interrupt *interrupt, /* Update the IPA interrupt mask to enable it */ interrupt->enabled |= BIT(ipa_irq); - offset = ipa_reg_irq_en_offset(ipa->version); - iowrite32(interrupt->enabled, ipa->reg_virt + offset); + + reg = ipa_reg(ipa, IPA_IRQ_EN); + iowrite32(interrupt->enabled, ipa->reg_virt + ipa_reg_offset(reg)); } /* Remove the handler for an IPA interrupt type */ @@ -207,15 +215,16 @@ void ipa_interrupt_remove(struct ipa_interrupt *interrupt, enum ipa_irq_id ipa_irq) { struct ipa *ipa = interrupt->ipa; - u32 offset; + const struct ipa_reg *reg; if (WARN_ON(ipa_irq >= IPA_IRQ_COUNT)) return; /* Update the IPA interrupt mask to disable it */ interrupt->enabled &= ~BIT(ipa_irq); - offset = ipa_reg_irq_en_offset(ipa->version); - iowrite32(interrupt->enabled, ipa->reg_virt + offset); + + reg = ipa_reg(ipa, IPA_IRQ_EN); + iowrite32(interrupt->enabled, ipa->reg_virt + ipa_reg_offset(reg)); interrupt->handler[ipa_irq] = NULL; } @@ -225,8 +234,8 @@ struct ipa_interrupt *ipa_interrupt_config(struct ipa *ipa) { struct device *dev = &ipa->pdev->dev; struct ipa_interrupt *interrupt; + const struct ipa_reg *reg; unsigned int irq; - u32 offset; int ret; ret = platform_get_irq_byname(ipa->pdev, "ipa"); @@ -244,8 +253,8 @@ struct ipa_interrupt *ipa_interrupt_config(struct ipa *ipa) interrupt->irq = irq; /* Start with all IPA interrupts disabled */ - offset = ipa_reg_irq_en_offset(ipa->version); - iowrite32(0, ipa->reg_virt + offset); + reg = ipa_reg(ipa, IPA_IRQ_EN); + iowrite32(0, ipa->reg_virt + ipa_reg_offset(reg)); ret = request_threaded_irq(irq, NULL, ipa_isr_thread, IRQF_ONESHOT, "ipa", interrupt); |