Merge tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add HOTPLUG_SMT support (/sys/devices/system/cpu/smt) and honour the
   configured SMT state when hotplugging CPUs into the system

 - Combine final TLB flush and lazy TLB mm shootdown IPIs when using the
   Radix MMU to avoid a broadcast TLBIE flush on exit

 - Drop the exclusion between ptrace/perf watchpoints, and drop the now
   unused associated arch hooks

 - Add support for the "nohlt" command line option to disable CPU idle

 - Add support for -fpatchable-function-entry for ftrace, with GCC >=
   13.1

 - Rework memory block size determination, and support 256MB size on
   systems with GPUs that have hotpluggable memory

 - Various other small features and fixes

Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Benjamin Gray, Christophe Leroy, Frederic Barrat, Gautam
Menghani, Geoff Levand, Hari Bathini, Immad Mir, Jialin Zhang, Joel
Stanley, Jordan Niethe, Justin Stitt, Kajol Jain, Kees Cook, Krzysztof
Kozlowski, Laurent Dufour, Liang He, Linus Walleij, Mahesh Salgaonkar,
Masahiro Yamada, Michal Suchanek, Nageswara R Sastry, Nathan Chancellor,
Nathan Lynch, Naveen N Rao, Nicholas Piggin, Nick Desaulniers, Omar
Sandoval, Randy Dunlap, Reza Arbab, Rob Herring, Russell Currey, Sourabh
Jain, Thomas Gleixner, Trevor Woerner, Uwe Kleine-König, Vaibhav Jain,
Xiongfeng Wang, Yuan Tan, Zhang Rui, and Zheng Zengkai.

* tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (135 commits)
  macintosh/ams: linux/platform_device.h is needed
  powerpc/xmon: Reapply "Relax frame size for clang"
  powerpc/mm/book3s64: Use 256M as the upper limit with coherent device memory attached
  powerpc/mm/book3s64: Fix build error with SPARSEMEM disabled
  powerpc/iommu: Fix notifiers being shared by PCI and VIO buses
  powerpc/mpc5xxx: Add missing fwnode_handle_put()
  powerpc/config: Disable SLAB_DEBUG_ON in skiroot
  powerpc/pseries: Remove unused hcall tracing instruction
  powerpc/pseries: Fix hcall tracepoints with JUMP_LABEL=n
  powerpc: dts: add missing space before {
  powerpc/eeh: Use pci_dev_id() to simplify the code
  powerpc/64s: Move CPU -mtune options into Kconfig
  powerpc/powermac: Fix unused function warning
  powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT
  powerpc: Don't include lppaca.h in paca.h
  powerpc/pseries: Move hcall_vphn() prototype into vphn.h
  powerpc/pseries: Move VPHN constants into vphn.h
  cxl: Drop unused detach_spa()
  powerpc: Drop zalloc_maybe_bootmem()
  powerpc/powernv: Use struct opal_prd_msg in more places
  ...

19 files changed, 45 insertions, 45 deletions

diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 9aa8286c9687..51ad0397c17a 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -27,7 +27,7 @@ endif
 CFLAGS_code-patching.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 CFLAGS_feature-fixups.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 
-obj-y += alloc.o code-patching.o feature-fixups.o pmem.o
+obj-y += code-patching.o feature-fixups.o pmem.o
 
 obj-$(CONFIG_CODE_PATCHING_SELFTEST) += test-code-patching.o
 
diff --git a/arch/powerpc/lib/alloc.c b/arch/powerpc/lib/alloc.c
deleted file mode 100644
index ce180870bd52..000000000000
--- a/arch/powerpc/lib/alloc.c
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/memblock.h>
-#include <linux/string.h>
-#include <asm/setup.h>
-
-
-void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
-{
-	void *p;
-
-	if (slab_is_available())
-		p = kzalloc(size, mask);
-	else {
-		p = memblock_alloc(size, SMP_CACHE_BYTES);
-		if (!p)
-			panic("%s: Failed to allocate %zu bytes\n", __func__,
-			      size);
-	}
-	return p;
-}
diff --git a/arch/powerpc/lib/checksum_32.S b/arch/powerpc/lib/checksum_32.S
index 4541e8e29467..cd00b9bdd772 100644
--- a/arch/powerpc/lib/checksum_32.S
+++ b/arch/powerpc/lib/checksum_32.S
@@ -8,12 +8,12 @@
  * Severely hacked about by Paul Mackerras (paulus@cs.anu.edu.au).
  */
 
+#include <linux/export.h>
 #include <linux/sys.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 
 	.text
 
diff --git a/arch/powerpc/lib/checksum_64.S b/arch/powerpc/lib/checksum_64.S
index 98ff51bd2f7d..d53d8f09a2c2 100644
--- a/arch/powerpc/lib/checksum_64.S
+++ b/arch/powerpc/lib/checksum_64.S
@@ -8,11 +8,11 @@
  * Severely hacked about by Paul Mackerras (paulus@cs.anu.edu.au).
  */
 
+#include <linux/export.h>
 #include <linux/sys.h>
 #include <asm/processor.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 
 /*
  * Computes the checksum of a memory block at buff, length len,
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S
index 3e9c27c46331..933b685e7ab6 100644
--- a/arch/powerpc/lib/copy_32.S
+++ b/arch/powerpc/lib/copy_32.S
@@ -4,11 +4,11 @@
  *
  * Copyright (C) 1996-2005 Paul Mackerras.
  */
+#include <linux/export.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/code-patching-asm.h>
 #include <asm/kasan.h>
 
diff --git a/arch/powerpc/lib/copy_mc_64.S b/arch/powerpc/lib/copy_mc_64.S
index 88d46c471493..bf1014b28fe8 100644
--- a/arch/powerpc/lib/copy_mc_64.S
+++ b/arch/powerpc/lib/copy_mc_64.S
@@ -4,9 +4,9 @@
  * Derived from copyuser_power7.s by Anton Blanchard <anton@au.ibm.com>
  * Author - Balbir Singh <bsingharora@gmail.com>
  */
+#include <linux/export.h>
 #include <asm/ppc_asm.h>
 #include <asm/errno.h>
-#include <asm/export.h>
 
 	.macro err1
 100:
diff --git a/arch/powerpc/lib/copypage_64.S b/arch/powerpc/lib/copypage_64.S
index 5d09a029b556..f33a2e6088e5 100644
--- a/arch/powerpc/lib/copypage_64.S
+++ b/arch/powerpc/lib/copypage_64.S
@@ -2,11 +2,11 @@
 /*
  * Copyright (C) 2008 Mark Nelson, IBM Corp.
  */
+#include <linux/export.h>
 #include <asm/page.h>
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
-#include <asm/export.h>
 #include <asm/feature-fixups.h>
 
 _GLOBAL_TOC(copy_page)
diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S
index db8719a14846..9af969d2cc0c 100644
--- a/arch/powerpc/lib/copyuser_64.S
+++ b/arch/powerpc/lib/copyuser_64.S
@@ -2,9 +2,9 @@
 /*
  * Copyright (C) 2002 Paul Mackerras, IBM Corp.
  */
+#include <linux/export.h>
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/asm-compat.h>
 #include <asm/feature-fixups.h>
 
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
index 80def1c2afcb..4f82581ca203 100644
--- a/arch/powerpc/lib/feature-fixups.c
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -67,7 +67,8 @@ static int patch_alt_instruction(u32 *src, u32 *dest, u32 *alt_start, u32 *alt_e
 	return 0;
 }
 
-static int patch_feature_section(unsigned long value, struct fixup_entry *fcur)
+static int patch_feature_section_mask(unsigned long value, unsigned long mask,
+				      struct fixup_entry *fcur)
 {
 	u32 *start, *end, *alt_start, *alt_end, *src, *dest;
 
@@ -79,7 +80,7 @@ static int patch_feature_section(unsigned long value, struct fixup_entry *fcur)
 	if ((alt_end - alt_start) > (end - start))
 		return 1;
 
-	if ((value & fcur->mask) == fcur->value)
+	if ((value & fcur->mask & mask) == (fcur->value & mask))
 		return 0;
 
 	src = alt_start;
@@ -97,7 +98,8 @@ static int patch_feature_section(unsigned long value, struct fixup_entry *fcur)
 	return 0;
 }
 
-void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end)
+static void do_feature_fixups_mask(unsigned long value, unsigned long mask,
+				   void *fixup_start, void *fixup_end)
 {
 	struct fixup_entry *fcur, *fend;
 
@@ -105,7 +107,7 @@ void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end)
 	fend = fixup_end;
 
 	for (; fcur < fend; fcur++) {
-		if (patch_feature_section(value, fcur)) {
+		if (patch_feature_section_mask(value, mask, fcur)) {
 			WARN_ON(1);
 			printk("Unable to patch feature section at %p - %p" \
 				" with %p - %p\n",
@@ -117,6 +119,11 @@ void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end)
 	}
 }
 
+void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end)
+{
+	do_feature_fixups_mask(value, ~0, fixup_start, fixup_end);
+}
+
 #ifdef CONFIG_PPC_BARRIER_NOSPEC
 static bool is_fixup_addr_valid(void *dest, size_t size)
 {
@@ -651,6 +658,17 @@ void __init apply_feature_fixups(void)
 	do_final_fixups();
 }
 
+void __init update_mmu_feature_fixups(unsigned long mask)
+{
+	saved_mmu_features &= ~mask;
+	saved_mmu_features |= cur_cpu_spec->mmu_features & mask;
+
+	do_feature_fixups_mask(cur_cpu_spec->mmu_features, mask,
+			       PTRRELOC(&__start___mmu_ftr_fixup),
+			       PTRRELOC(&__stop___mmu_ftr_fixup));
+	mmu_feature_keys_init();
+}
+
 void __init setup_feature_keys(void)
 {
 	/*
@@ -683,6 +701,11 @@ late_initcall(check_features);
 #define check(x)	\
 	if (!(x)) printk("feature-fixups: test failed at line %d\n", __LINE__);
 
+static int patch_feature_section(unsigned long value, struct fixup_entry *fcur)
+{
+	return patch_feature_section_mask(value, ~0, fcur);
+}
+
 /* This must be after the text it fixes up, vmlinux.lds.S enforces that atm */
 static struct fixup_entry fixup;
 
diff --git a/arch/powerpc/lib/hweight_64.S b/arch/powerpc/lib/hweight_64.S
index 09af29561314..151875050da9 100644
--- a/arch/powerpc/lib/hweight_64.S
+++ b/arch/powerpc/lib/hweight_64.S
@@ -5,9 +5,9 @@
  *
  * Author: Anton Blanchard <anton@au.ibm.com>
  */
+#include <linux/export.h>
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/feature-fixups.h>
 
 /* Note: This code relies on -mminimal-toc */
diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
index 9351ffab409c..6fd06cd20faa 100644
--- a/arch/powerpc/lib/mem_64.S
+++ b/arch/powerpc/lib/mem_64.S
@@ -4,10 +4,10 @@
  *
  * Copyright (C) 1996 Paul Mackerras.
  */
+#include <linux/export.h>
 #include <asm/processor.h>
 #include <asm/errno.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/kasan.h>
 
 #ifndef CONFIG_KASAN
diff --git a/arch/powerpc/lib/memcmp_32.S b/arch/powerpc/lib/memcmp_32.S
index 5010e376f7b8..f6fca5664e91 100644
--- a/arch/powerpc/lib/memcmp_32.S
+++ b/arch/powerpc/lib/memcmp_32.S
@@ -7,8 +7,8 @@
  *
  */
 
+#include <linux/export.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 
 	.text
 
diff --git a/arch/powerpc/lib/memcmp_64.S b/arch/powerpc/lib/memcmp_64.S
index 0b9b1685a33d..142c666d3897 100644
--- a/arch/powerpc/lib/memcmp_64.S
+++ b/arch/powerpc/lib/memcmp_64.S
@@ -3,8 +3,8 @@
  * Author: Anton Blanchard <anton@au.ibm.com>
  * Copyright 2015 IBM Corporation.
  */
+#include <linux/export.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/ppc-opcode.h>
 
 #define off8	r6
diff --git a/arch/powerpc/lib/memcpy_64.S b/arch/powerpc/lib/memcpy_64.S
index 016c91e958d8..b5a67e20143f 100644
--- a/arch/powerpc/lib/memcpy_64.S
+++ b/arch/powerpc/lib/memcpy_64.S
@@ -2,9 +2,9 @@
 /*
  * Copyright (C) 2002 Paul Mackerras, IBM Corp.
  */
+#include <linux/export.h>
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/asm-compat.h>
 #include <asm/feature-fixups.h>
 #include <asm/kasan.h>
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 38158b77a801..a4ab8625061a 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -485,7 +485,7 @@ write_mem_aligned(unsigned long val, unsigned long ea, int nb, struct pt_regs *r
  * Copy from a buffer to userspace, using the largest possible
  * aligned accesses, up to sizeof(long).
  */
-static nokprobe_inline int __copy_mem_out(u8 *dest, unsigned long ea, int nb, struct pt_regs *regs)
+static __always_inline int __copy_mem_out(u8 *dest, unsigned long ea, int nb, struct pt_regs *regs)
 {
 	int c;
 
@@ -1043,7 +1043,7 @@ static nokprobe_inline int do_vsx_store(struct instruction_op *op,
 }
 #endif /* CONFIG_VSX */
 
-static int __emulate_dcbz(unsigned long ea)
+static __always_inline int __emulate_dcbz(unsigned long ea)
 {
 	unsigned long i;
 	unsigned long size = l1_dcache_bytes();
diff --git a/arch/powerpc/lib/string.S b/arch/powerpc/lib/string.S
index 2752b1cc1d45..daa72061dc0c 100644
--- a/arch/powerpc/lib/string.S
+++ b/arch/powerpc/lib/string.S
@@ -4,8 +4,8 @@
  *
  * Copyright (C) 1996 Paul Mackerras.
  */
+#include <linux/export.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/cache.h>
 
 	.text
diff --git a/arch/powerpc/lib/string_32.S b/arch/powerpc/lib/string_32.S
index 1ddb26394e8a..3ee45619a3f8 100644
--- a/arch/powerpc/lib/string_32.S
+++ b/arch/powerpc/lib/string_32.S
@@ -7,8 +7,8 @@
  *
  */
 
+#include <linux/export.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/cache.h>
 
 	.text
diff --git a/arch/powerpc/lib/string_64.S b/arch/powerpc/lib/string_64.S
index df41ce06f86b..a25eb8588434 100644
--- a/arch/powerpc/lib/string_64.S
+++ b/arch/powerpc/lib/string_64.S
@@ -6,10 +6,10 @@
  * Author: Anton Blanchard <anton@au.ibm.com>
  */
 
+#include <linux/export.h>
 #include <asm/ppc_asm.h>
 #include <asm/linkage.h>
 #include <asm/asm-offsets.h>
-#include <asm/export.h>
 
 /**
  * __arch_clear_user: - Zero a block of memory in user space, with less checking.
diff --git a/arch/powerpc/lib/strlen_32.S b/arch/powerpc/lib/strlen_32.S
index 0a8d3f64d493..bbd24feb233f 100644
--- a/arch/powerpc/lib/strlen_32.S
+++ b/arch/powerpc/lib/strlen_32.S
@@ -6,8 +6,8 @@
  *
  * Inspired from glibc implementation
  */
+#include <linux/export.h>
 #include <asm/ppc_asm.h>
-#include <asm/export.h>
 #include <asm/cache.h>
 
 	.text