From 4cea749d56bec9409f3bd126d2b2f949dc6c66e2 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 30 Mar 2020 10:43:59 +0100 Subject: Revert "irqchip/xilinx: Enable generic irq multi handler" This reverts commit a0789993bf8266e62fea6b4613945ba081c71e7d, which breaks a number of PPC platforms. Reported-by: Stephen Rothwell Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/44b64be7-9240-fd52-af90-e0245220f38b@xilinx.com --- arch/microblaze/kernel/irq.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) (limited to 'arch/microblaze/kernel') diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c index 0b37dde60a1e..903dad822fad 100644 --- a/arch/microblaze/kernel/irq.c +++ b/arch/microblaze/kernel/irq.c @@ -20,10 +20,29 @@ #include #include +static u32 concurrent_irq; + void __irq_entry do_IRQ(struct pt_regs *regs) { + unsigned int irq; + struct pt_regs *old_regs = set_irq_regs(regs); trace_hardirqs_off(); - handle_arch_irq(regs); + + irq_enter(); + irq = xintc_get_irq(); +next_irq: + BUG_ON(!irq); + generic_handle_irq(irq); + + irq = xintc_get_irq(); + if (irq != -1U) { + pr_debug("next irq: %d\n", irq); + ++concurrent_irq; + goto next_irq; + } + + irq_exit(); + set_irq_regs(old_regs); trace_hardirqs_on(); } -- cgit v1.2.3