leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch irq/remove-handle-domain-irq-20211026 into irq/irqchip-next

Browse Source 
* irq/remove-handle-domain-irq-20211026:
  : Large rework of the architecture entry code from Mark Rutland.
  : From the cover letter:
  :
  : <quote>
  : The handle_domain_{irq,nmi}() functions were oringally intended as a
  : convenience, but recent rework to entry code across the kernel tree has
  : demonstrated that they cause more pain than they're worth and prevent
  : architectures from being able to write robust entry code.
  :
  : This series reworks the irq code to remove them, handling the necessary
  : entry work consistently in entry code (be it architectural or generic).
  : </quote>
  MIPS: irq: Avoid an unused-variable error
  irq: remove handle_domain_{irq,nmi}()
  irq: remove CONFIG_HANDLE_DOMAIN_IRQ_IRQENTRY
  irq: riscv: perform irqentry in entry code
  irq: openrisc: perform irqentry in entry code
  irq: csky: perform irqentry in entry code
  irq: arm64: perform irqentry in entry code
  irq: arm: perform irqentry in entry code
  irq: add a (temporary) CONFIG_HANDLE_DOMAIN_IRQ_IRQENTRY
  irq: nds32: avoid CONFIG_HANDLE_DOMAIN_IRQ
  irq: arc: avoid CONFIG_HANDLE_DOMAIN_IRQ
  irq: add generic_handle_arch_irq()
  irq: unexport handle_irq_desc()
  irq: simplify handle_domain_{irq,nmi}()
  irq: mips: simplify do_domain_IRQ()
  irq: mips: stop (ab)using handle_domain_irq()
  irq: mips: simplify bcm6345_l1_irq_handle()
  irq: mips: avoid nested irq_enter()

Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier
2021-10-28 13:34:52 +01:00
parent e6a767a175 34fca8947b
commit c6dca712f6
67 changed files with 193 additions and 222 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/mips/Kconfig
View File

@@ -47,7 +47,6 @@ config MIPS
select GENERIC_SMP_IDLE_THREAD
select GENERIC_TIME_VSYSCALL
select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_COMPILER_H
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT

5
arch/mips/cavium-octeon/octeon-irq.c
View File

@@ -2609,7 +2609,10 @@ static void octeon_irq_ciu3_ip2(void)
else
hw = intsn;
ret = handle_domain_irq(domain, hw, NULL);
irq_enter();
ret = generic_handle_domain_irq(domain, hw);
irq_exit();
if (ret < 0) {
union cvmx_ciu3_iscx_w1c isc_w1c;
u64 isc_w1c_addr = ciu3_addr + CIU3_ISC_W1C(intsn);

8
arch/mips/kernel/irq.c
View File

@@ -111,15 +111,9 @@ void __irq_entry do_IRQ(unsigned int irq)
#ifdef CONFIG_IRQ_DOMAIN
void __irq_entry do_domain_IRQ(struct irq_domain *domain, unsigned int hwirq)
{
struct irq_desc *desc;
irq_enter();
check_stack_overflow();
desc = irq_resolve_mapping(domain, hwirq);
if (likely(desc))
handle_irq_desc(desc);
generic_handle_domain_irq(domain, hwirq);
irq_exit();
}
#endif