Merge tag 'irqchip-5.16' into irq/core

Merge irqchip updates for Linux 5.16 from Marc Zyngier:

- A large cross-arch rework to move irq_enter()/irq_exit() into
  the arch code, and removing it from the generic irq code.
  Thanks to Mark Rutland for the huge effort!

- A few irqchip drivers are made modular (broadcom, meson), because
  that's apparently a thing...

- A new driver for the Microchip External Interrupt Controller

- The irq_cpu_offline()/irq_cpu_online() API is now deprecated and
  can only be selected on the Cavium Octeon platform. Once this
  platform is removed, the API will be removed at the same time.

- A sprinkle of devm_* helper, as people seem to love that.

- The usual spattering of small fixes and minor improvements.

* tag 'irqchip-5.16': (912 commits)
  h8300: Fix linux/irqchip.h include mess
  dt-bindings: irqchip: renesas-irqc: Document r8a774e1 bindings
  MIPS: irq: Avoid an unused-variable error
  genirq: Hide irq_cpu_{on,off}line() behind a deprecated option
  irqchip/mips-gic: Get rid of the reliance on irq_cpu_online()
  MIPS: loongson64: Drop call to irq_cpu_offline()
  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()
  ...

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211029083332.3680101-1-maz@kernel.org

1 files changed, 3 insertions, 22 deletions

diff --git a/arch/m68k/mm/cache.c b/arch/m68k/mm/cache.c
index b486c0889eec..dde978e66f14 100644
--- a/arch/m68k/mm/cache.c
+++ b/arch/m68k/mm/cache.c
@@ -49,24 +49,7 @@ static unsigned long virt_to_phys_slow(unsigned long vaddr)
 		if (mmusr & MMU_R_040)
 			return (mmusr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
 	} else {
-		unsigned short mmusr;
-		unsigned long *descaddr;
-
-		asm volatile ("ptestr %3,%2@,#7,%0\n\t"
-			      "pmove %%psr,%1"
-			      : "=a&" (descaddr), "=m" (mmusr)
-			      : "a" (vaddr), "d" (get_fs().seg));
-		if (mmusr & (MMU_I|MMU_B|MMU_L))
-			return 0;
-		descaddr = phys_to_virt((unsigned long)descaddr);
-		switch (mmusr & MMU_NUM) {
-		case 1:
-			return (*descaddr & 0xfe000000) | (vaddr & 0x01ffffff);
-		case 2:
-			return (*descaddr & 0xfffc0000) | (vaddr & 0x0003ffff);
-		case 3:
-			return (*descaddr & PAGE_MASK) | (vaddr & ~PAGE_MASK);
-		}
+		WARN_ON_ONCE(!CPU_IS_040_OR_060);
 	}
 	return 0;
 }
@@ -107,11 +90,9 @@ void flush_icache_user_range(unsigned long address, unsigned long endaddr)
 
 void flush_icache_range(unsigned long address, unsigned long endaddr)
 {
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
+	set_fc(SUPER_DATA);
 	flush_icache_user_range(address, endaddr);
-	set_fs(old_fs);
+	set_fc(USER_DATA);
 }
 EXPORT_SYMBOL(flush_icache_range);