Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull more arm64 updates from Catalin Marinas:
 "A mix of fixes and clean-ups that turned up too late for the first
  pull request:

   - Restore terminal stack frame records. Their previous removal caused
     traces which cross secondary_start_kernel to terminate one entry
     too late, with a spurious "0" entry.

   - Fix boot warning with pseudo-NMI due to the way we manipulate the
     PMR register.

   - ACPI fixes: avoid corruption of interrupt mappings on watchdog
     probe failure (GTDT), prevent unregistering of GIC SGIs.

   - Force SPARSEMEM_VMEMMAP as the only memory model, it saves with
     having to test all the other combinations.

   - Documentation fixes and updates: tagged address ABI exceptions on
     brk/mmap/mremap(), event stream frequency, update booting
     requirements on the configuration of traps"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: kernel: Update the stale comment
  arm64: Fix the documented event stream frequency
  arm64: entry: always set GIC_PRIO_PSR_I_SET during entry
  arm64: Explicitly document boot requirements for SVE
  arm64: Explicitly require that FPSIMD instructions do not trap
  arm64: Relax booting requirements for configuration of traps
  arm64: cpufeatures: use min and max
  arm64: stacktrace: restore terminal records
  arm64/vdso: Discard .note.gnu.property sections in vDSO
  arm64: doc: Add brk/mmap/mremap() to the Tagged Address ABI Exceptions
  psci: Remove unneeded semicolon
  ACPI: irq: Prevent unregistering of GIC SGIs
  ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
  arm64: Show three registers per line
  arm64: remove HAVE_DEBUG_BUGVERBOSE
  arm64: alternative: simplify passing alt_region
  arm64: Force SPARSEMEM_VMEMMAP as the only memory management model
  arm64: vdso32: drop -no-integrated-as flag

4 files changed, 6 insertions, 6 deletions

diff --git a/arch/arm64/include/asm/daifflags.h b/arch/arm64/include/asm/daifflags.h
index 5eb7af9c4557..55f57dfa8e2f 100644
--- a/arch/arm64/include/asm/daifflags.h
+++ b/arch/arm64/include/asm/daifflags.h
@@ -131,6 +131,9 @@ static inline void local_daif_inherit(struct pt_regs *regs)
 	if (interrupts_enabled(regs))
 		trace_hardirqs_on();
 
+	if (system_uses_irq_prio_masking())
+		gic_write_pmr(regs->pmr_save);
+
 	/*
 	 * We can't use local_daif_restore(regs->pstate) here as
 	 * system_has_prio_mask_debugging() won't restore the I bit if it can
diff --git a/arch/arm64/include/asm/kernel-pgtable.h b/arch/arm64/include/asm/kernel-pgtable.h
index 587c504a4c8b..d44df9d62fc9 100644
--- a/arch/arm64/include/asm/kernel-pgtable.h
+++ b/arch/arm64/include/asm/kernel-pgtable.h
@@ -136,7 +136,7 @@
  * has a direct correspondence, and needs to appear sufficiently aligned
  * in the virtual address space.
  */
-#if defined(CONFIG_SPARSEMEM_VMEMMAP) && ARM64_MEMSTART_SHIFT < SECTION_SIZE_BITS
+#if ARM64_MEMSTART_SHIFT < SECTION_SIZE_BITS
 #define ARM64_MEMSTART_ALIGN	(1UL << SECTION_SIZE_BITS)
 #else
 #define ARM64_MEMSTART_ALIGN	(1UL << ARM64_MEMSTART_SHIFT)
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 6d9915d066fa..87b90dc27a43 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -345,7 +345,7 @@ static inline void *phys_to_virt(phys_addr_t x)
  */
 #define ARCH_PFN_OFFSET		((unsigned long)PHYS_PFN_OFFSET)
 
-#if !defined(CONFIG_SPARSEMEM_VMEMMAP) || defined(CONFIG_DEBUG_VIRTUAL)
+#if defined(CONFIG_DEBUG_VIRTUAL)
 #define page_to_virt(x)	({						\
 	__typeof__(x) __page = x;					\
 	void *__addr = __va(page_to_phys(__page));			\
@@ -365,7 +365,7 @@ static inline void *phys_to_virt(phys_addr_t x)
 	u64 __addr = VMEMMAP_START + (__idx * sizeof(struct page));	\
 	(struct page *)__addr;						\
 })
-#endif /* !CONFIG_SPARSEMEM_VMEMMAP || CONFIG_DEBUG_VIRTUAL */
+#endif /* CONFIG_DEBUG_VIRTUAL */
 
 #define virt_addr_valid(addr)	({					\
 	__typeof__(addr) __addr = __tag_reset(addr);			\
diff --git a/arch/arm64/include/asm/sparsemem.h b/arch/arm64/include/asm/sparsemem.h
index eb4a75d720ed..4b73463423c3 100644
--- a/arch/arm64/include/asm/sparsemem.h
+++ b/arch/arm64/include/asm/sparsemem.h
@@ -5,7 +5,6 @@
 #ifndef __ASM_SPARSEMEM_H
 #define __ASM_SPARSEMEM_H
 
-#ifdef CONFIG_SPARSEMEM
 #define MAX_PHYSMEM_BITS	CONFIG_ARM64_PA_BITS
 
 /*
@@ -27,6 +26,4 @@
 #define SECTION_SIZE_BITS 27
 #endif /* CONFIG_ARM64_64K_PAGES */
 
-#endif /* CONFIG_SPARSEMEM*/
-
 #endif