diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-11-25 00:56:28 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-11-25 00:56:28 +0100 |
| commit | 7032908cd5842af9710de4815a456241b5e6d2d1 (patch) | |
| tree | 7b9713383bbd1396a92b5a90a136f3f3786916c5 | |
| parent | 418baf2c28f3473039f2f7377760bd8f6897ae18 (diff) | |
| parent | 74cde1a53368aed4f2b4b54bf7030437f64a534b (diff) | |
Merge tag 'irqchip-fixes-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgentirq-urgent-2020-11-29
Pull irqchip fixes from Marc Zyngier:
- Fix Exiu driver trigger type when using ACPI
- Fix GICv3 ITS suspend/resume to use the in-kernel path
at all times, sidestepping braindead firmware support
Link: https://lore.kernel.org/r/20201122184752.553990-1-maz@kernel.org
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 16 | ||||
| -rw-r--r-- | drivers/irqchip/irq-sni-exiu.c | 2 |
2 files changed, 4 insertions, 14 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 0fec31931e11..4069c215328b 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -42,7 +42,6 @@ #define ITS_FLAGS_CMDQ_NEEDS_FLUSHING (1ULL << 0) #define ITS_FLAGS_WORKAROUND_CAVIUM_22375 (1ULL << 1) #define ITS_FLAGS_WORKAROUND_CAVIUM_23144 (1ULL << 2) -#define ITS_FLAGS_SAVE_SUSPEND_STATE (1ULL << 3) #define RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING (1 << 0) #define RDIST_FLAGS_RD_TABLES_PREALLOCATED (1 << 1) @@ -4741,9 +4740,6 @@ static int its_save_disable(void) list_for_each_entry(its, &its_nodes, entry) { void __iomem *base; - if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE)) - continue; - base = its->base; its->ctlr_save = readl_relaxed(base + GITS_CTLR); err = its_force_quiescent(base); @@ -4762,9 +4758,6 @@ err: list_for_each_entry_continue_reverse(its, &its_nodes, entry) { void __iomem *base; - if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE)) - continue; - base = its->base; writel_relaxed(its->ctlr_save, base + GITS_CTLR); } @@ -4784,9 +4777,6 @@ static void its_restore_enable(void) void __iomem *base; int i; - if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE)) - continue; - base = its->base; /* @@ -4794,7 +4784,10 @@ static void its_restore_enable(void) * don't restore it since writing to CBASER or BASER<n> * registers is undefined according to the GIC v3 ITS * Specification. + * + * Firmware resuming with the ITS enabled is terminally broken. */ + WARN_ON(readl_relaxed(base + GITS_CTLR) & GITS_CTLR_ENABLE); ret = its_force_quiescent(base); if (ret) { pr_err("ITS@%pa: failed to quiesce on resume: %d\n", @@ -5074,9 +5067,6 @@ static int __init its_probe_one(struct resource *res, ctlr |= GITS_CTLR_ImDe; writel_relaxed(ctlr, its->base + GITS_CTLR); - if (GITS_TYPER_HCC(typer)) - its->flags |= ITS_FLAGS_SAVE_SUSPEND_STATE; - err = its_init_domain(handle, its); if (err) goto out_free_tables; diff --git a/drivers/irqchip/irq-sni-exiu.c b/drivers/irqchip/irq-sni-exiu.c index 1d027623c776..abd011fcecf4 100644 --- a/drivers/irqchip/irq-sni-exiu.c +++ b/drivers/irqchip/irq-sni-exiu.c @@ -136,7 +136,7 @@ static int exiu_domain_translate(struct irq_domain *domain, if (fwspec->param_count != 2) return -EINVAL; *hwirq = fwspec->param[0]; - *type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK; + *type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK; } return 0; } |