diff options
| author |   Marc Zyngier <maz@kernel.org> | 2020-03-30 10:43:59 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-04-01 09:12:24 +0100 |
| commit | 4cea749d56bec9409f3bd126d2b2f949dc6c66e2 (patch) | |
| tree | 0828f56c2e90ff58a111121a34ec200686304dea /arch/microblaze/kernel | |
| parent | Revert "irqchip/xilinx: Do not call irq_set_default_host()" (diff) | |
| download | wireguard-linux-4cea749d56bec9409f3bd126d2b2f949dc6c66e2.tar.xz wireguard-linux-4cea749d56bec9409f3bd126d2b2f949dc6c66e2.zip | |
Revert "irqchip/xilinx: Enable generic irq multi handler"
This reverts commit a0789993bf8266e62fea6b4613945ba081c71e7d, which
breaks a number of PPC platforms.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/44b64be7-9240-fd52-af90-e0245220f38b@xilinx.com
Diffstat (limited to 'arch/microblaze/kernel')
| -rw-r--r-- | arch/microblaze/kernel/irq.c | 21 |
1 files changed, 20 insertions, 1 deletions
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 <linux/irqchip.h> #include <linux/of_irq.h> +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(); } |