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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-05 21:57:12 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-05 21:57:12 +0300 |
| commit | e5adbd6ec480164fe30ee65c94426cb12d64bc99 (patch) | |
| tree | 15d0bf67f01bfbac1b9da8fdf35f404b21c905ae /arch | |
| parent | 70fbdfef4ba63eeef83b2c94eac9a5a9f913e442 (diff) | |
| parent | a67cd1fb660df8d8e093cb4b75343ef3dcd17cd6 (diff) | |
| download | linux-e5adbd6ec480164fe30ee65c94426cb12d64bc99.tar.xz | |
Merge tag 'irq-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"Two reverts addressing regressions of the Xilinx interrupt controller
driver which affected the PPC users"
* tag 'irq-urgent-2020-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "irqchip/xilinx: Enable generic irq multi handler"
Revert "irqchip/xilinx: Do not call irq_set_default_host()"
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/microblaze/Kconfig | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/irq.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/kernel/irq.c | 21 |
3 files changed, 23 insertions, 3 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 15baa6851e94..9606c244b5b8 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -47,8 +47,6 @@ config MICROBLAZE select CPU_NO_EFFICIENT_FFS select MMU_GATHER_NO_RANGE if MMU select SPARSE_IRQ - select GENERIC_IRQ_MULTI_HANDLER - select HANDLE_DOMAIN_IRQ # Endianness selection choice diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h index cb6ab55d1d01..0a28e80bbab0 100644 --- a/arch/microblaze/include/asm/irq.h +++ b/arch/microblaze/include/asm/irq.h @@ -11,4 +11,7 @@ struct pt_regs; extern void do_IRQ(struct pt_regs *regs); +/* should be defined in each interrupt controller driver */ +extern unsigned int xintc_get_irq(void); + #endif /* _ASM_MICROBLAZE_IRQ_H */ 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(); } |