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authorLinus Torvalds <torvalds@linux-foundation.org>2025-12-05 16:18:21 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-12-05 16:18:21 -0800
commitad952db4a865e96ec98d4c5874a4699fe3286d56 (patch)
treec6df751cd277784b9f33f57c426f7fe6fa91cf95 /arch/powerpc/include/asm
parent87c9e88ac4a16a7aba99862c41b33d7eeb75d375 (diff)
parent9b36c7fc5aa5f2c6e6eeb9f312fdfe61b4291c9f (diff)
Merge tag 'powerpc-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman: - Restore clearing of MSR[RI] at interrupt/syscall exit on 32-bit - Fix unpaired stwcx on interrupt exit on 32-bit - Fix race condition leading to double list-add in mac_hid_toggle_emumouse() - Fix mprotect on book3s 32-bit - Fix SLB multihit issue during SLB preload with 64-bit hash MMU - Add support for crashkernel CMA reservation - Add die_id and die_cpumask for Power10 & later to expose chip hemispheres - A series of minor fixes and improvements to the hash SLB code Thanks to Antonio Alvarez Feijoo, Ben Collins, Bhaskar Chowdhury, Christophe Leroy, Daniel Thompson, Dave Vasilevsky, Donet Tom, J. Neuschäfer, Kunwu Chan, Long Li, Naresh Kamboju, Nathan Chancellor, Ritesh Harjani (IBM), Shirisha G, Shrikanth Hegde, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Thomas Zimmermann, Venkat Rao Bagalkote, and Vishal Chourasia. * tag 'powerpc-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (32 commits) macintosh/via-pmu-backlight: Include <linux/fb.h> and <linux/of.h> powerpc/powermac: backlight: Include <linux/of.h> powerpc/64s/slb: Add no_slb_preload early cmdline param powerpc/64s/slb: Make preload_add return type as void powerpc/ptdump: Dump PXX level info for kernel_page_tables powerpc/64s/pgtable: Enable directMap counters in meminfo for Hash powerpc/64s/hash: Update directMap page counters for Hash powerpc/64s/hash: Hash hpt_order should be only available with Hash MMU powerpc/64s/hash: Improve hash mmu printk messages powerpc/64s/hash: Fix phys_addr_t printf format in htab_initialize() powerpc/64s/ptdump: Fix kernel_hash_pagetable dump for ISA v3.00 HPTE format powerpc/64s/hash: Restrict stress_hpt_struct memblock region to within RMA limit powerpc/64s/slb: Fix SLB multihit issue during SLB preload powerpc, mm: Fix mprotect on book3s 32-bit powerpc/smp: Expose die_id and die_cpumask powerpc/83xx: Add a null pointer check to mcu_gpiochip_add arch:powerpc:tools This file was missing shebang line, so added it kexec: Include kernel-end even without crashkernel powerpc: p2020: Rename wdt@ nodes to watchdog@ powerpc: 86xx: Rename wdt@ nodes to watchdog@ ...
Diffstat (limited to 'arch/powerpc/include/asm')
-rw-r--r--arch/powerpc/include/asm/book3s/32/tlbflush.h5
-rw-r--r--arch/powerpc/include/asm/book3s/64/mmu-hash.h1
-rw-r--r--arch/powerpc/include/asm/kexec.h2
-rw-r--r--arch/powerpc/include/asm/topology.h11
4 files changed, 13 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/tlbflush.h b/arch/powerpc/include/asm/book3s/32/tlbflush.h
index e43534da5207..4be2200a3c7e 100644
--- a/arch/powerpc/include/asm/book3s/32/tlbflush.h
+++ b/arch/powerpc/include/asm/book3s/32/tlbflush.h
@@ -11,6 +11,7 @@
void hash__flush_tlb_mm(struct mm_struct *mm);
void hash__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
void hash__flush_range(struct mm_struct *mm, unsigned long start, unsigned long end);
+void hash__flush_gather(struct mmu_gather *tlb);
#ifdef CONFIG_SMP
void _tlbie(unsigned long address);
@@ -29,7 +30,9 @@ void _tlbia(void);
static inline void tlb_flush(struct mmu_gather *tlb)
{
/* 603 needs to flush the whole TLB here since it doesn't use a hash table. */
- if (!mmu_has_feature(MMU_FTR_HPTE_TABLE))
+ if (mmu_has_feature(MMU_FTR_HPTE_TABLE))
+ hash__flush_gather(tlb);
+ else
_tlbia();
}
diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
index 346351423207..af12e2ba8eb8 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
@@ -524,7 +524,6 @@ void slb_save_contents(struct slb_entry *slb_ptr);
void slb_dump_contents(struct slb_entry *slb_ptr);
extern void slb_vmalloc_update(void);
-void preload_new_slb_context(unsigned long start, unsigned long sp);
#ifdef CONFIG_PPC_64S_HASH_MMU
void slb_set_size(u16 size);
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 4bbf9f699aaa..bd4a6c42a5f3 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -115,9 +115,11 @@ int setup_new_fdt_ppc64(const struct kimage *image, void *fdt, struct crash_mem
#ifdef CONFIG_CRASH_RESERVE
int __init overlaps_crashkernel(unsigned long start, unsigned long size);
extern void arch_reserve_crashkernel(void);
+extern void kdump_cma_reserve(void);
#else
static inline void arch_reserve_crashkernel(void) {}
static inline int overlaps_crashkernel(unsigned long start, unsigned long size) { return 0; }
+static inline void kdump_cma_reserve(void) { }
#endif
#if defined(CONFIG_CRASH_DUMP)
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index f19ca44512d1..66ed5fe1b718 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -132,15 +132,18 @@ static inline int cpu_to_coregroup_id(int cpu)
#include <asm/cputable.h>
struct cpumask *cpu_coregroup_mask(int cpu);
+const struct cpumask *cpu_die_mask(int cpu);
+int cpu_die_id(int cpu);
#ifdef CONFIG_PPC64
#include <asm/smp.h>
#define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu))
-
-#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
-#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
-#define topology_core_id(cpu) (cpu_to_core_id(cpu))
+#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
+#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
+#define topology_core_id(cpu) (cpu_to_core_id(cpu))
+#define topology_die_id(cpu) (cpu_die_id(cpu))
+#define topology_die_cpumask(cpu) (cpu_die_mask(cpu))
#endif
#endif