Merge tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Optimise radix KVM guest entry/exit by 2x on Power9/Power10.

 - Allow firmware to tell us whether to disable the entry and uaccess
   flushes on Power10 or later CPUs.

 - Add BPF_PROBE_MEM support for 32 and 64-bit BPF jits.

 - Several fixes and improvements to our hard lockup watchdog.

 - Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on 32-bit.

 - Allow building the 64-bit Book3S kernel without hash MMU support, ie.
   Radix only.

 - Add KUAP (SMAP) support for 40x, 44x, 8xx, Book3E (64-bit).

 - Add new encodings for perf_mem_data_src.mem_hops field, and use them
   on Power10.

 - A series of small performance improvements to 64-bit interrupt entry.

 - Several commits fixing issues when building with the clang integrated
   assembler.

 - Many other small features and fixes.

Thanks to Alan Modra, Alexey Kardashevskiy, Ammar Faizi, Anders Roxell,
Arnd Bergmann, Athira Rajeev, Cédric Le Goater, Christophe JAILLET,
Christophe Leroy, Christoph Hellwig, Daniel Axtens, David Yang, Erhard
Furtner, Fabiano Rosas, Greg Kroah-Hartman, Guo Ren, Hari Bathini, Jason
Wang, Joel Stanley, Julia Lawall, Kajol Jain, Kees Cook, Laurent Dufour,
Madhavan Srinivasan, Mark Brown, Minghao Chi, Nageswara R Sastry, Naresh
Kamboju, Nathan Chancellor, Nathan Lynch, Nicholas Piggin, Nick Child,
Oliver O'Halloran, Peiwei Hu, Randy Dunlap, Ravi Bangoria, Rob Herring,
Russell Currey, Sachin Sant, Sean Christopherson, Segher Boessenkool,
Thadeu Lima de Souza Cascardo, Tyrel Datwyler, Xiang wangx, and Yang
Guang.

* tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (240 commits)
  powerpc/xmon: Dump XIVE information for online-only processors.
  powerpc/opal: use default_groups in kobj_type
  powerpc/cacheinfo: use default_groups in kobj_type
  powerpc/sched: Remove unused TASK_SIZE_OF
  powerpc/xive: Add missing null check after calling kmalloc
  powerpc/floppy: Remove usage of the deprecated "pci-dma-compat.h" API
  selftests/powerpc: Add a test of sigreturning to an unaligned address
  powerpc/64s: Use EMIT_WARN_ENTRY for SRR debug warnings
  powerpc/64s: Mask NIP before checking against SRR0
  powerpc/perf: Fix spelling of "its"
  powerpc/32: Fix boot failure with GCC latent entropy plugin
  powerpc/code-patching: Replace patch_instruction() by ppc_inst_write() in selftests
  powerpc/code-patching: Move code patching selftests in its own file
  powerpc/code-patching: Move instr_is_branch_{i/b}form() in code-patching.h
  powerpc/code-patching: Move patch_exception() outside code-patching.c
  powerpc/code-patching: Use test_trampoline for prefixed patch test
  powerpc/code-patching: Fix patch_branch() return on out-of-range failure
  powerpc/code-patching: Reorganise do_patch_instruction() to ease error handling
  powerpc/code-patching: Fix unmap_patch_area() error handling
  powerpc/code-patching: Fix error handling in do_patch_instruction()
  ...

1 files changed, 11 insertions, 7 deletions

diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index c2f55fe7092d..71e8f2a92e36 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -77,15 +77,15 @@ static bool mce_in_guest(void)
 }
 
 /* flush SLBs and reload */
-#ifdef CONFIG_PPC_BOOK3S_64
+#ifdef CONFIG_PPC_64S_HASH_MMU
 void flush_and_reload_slb(void)
 {
-	/* Invalidate all SLBs */
-	slb_flush_all_realmode();
-
 	if (early_radix_enabled())
 		return;
 
+	/* Invalidate all SLBs */
+	slb_flush_all_realmode();
+
 	/*
 	 * This probably shouldn't happen, but it may be possible it's
 	 * called in early boot before SLB shadows are allocated.
@@ -99,7 +99,7 @@ void flush_and_reload_slb(void)
 
 void flush_erat(void)
 {
-#ifdef CONFIG_PPC_BOOK3S_64
+#ifdef CONFIG_PPC_64S_HASH_MMU
 	if (!early_cpu_has_feature(CPU_FTR_ARCH_300)) {
 		flush_and_reload_slb();
 		return;
@@ -114,7 +114,7 @@ void flush_erat(void)
 
 static int mce_flush(int what)
 {
-#ifdef CONFIG_PPC_BOOK3S_64
+#ifdef CONFIG_PPC_64S_HASH_MMU
 	if (what == MCE_FLUSH_SLB) {
 		flush_and_reload_slb();
 		return 1;
@@ -455,7 +455,7 @@ static int mce_find_instr_ea_and_phys(struct pt_regs *regs, uint64_t *addr,
 	 * in real-mode is tricky and can lead to recursive
 	 * faults
 	 */
-	struct ppc_inst instr;
+	ppc_inst_t instr;
 	unsigned long pfn, instr_addr;
 	struct instruction_op op;
 	struct pt_regs tmp = *regs;
@@ -499,8 +499,10 @@ static int mce_handle_ierror(struct pt_regs *regs, unsigned long srr1,
 			/* attempt to correct the error */
 			switch (table[i].error_type) {
 			case MCE_ERROR_TYPE_SLB:
+#ifdef CONFIG_PPC_64S_HASH_MMU
 				if (local_paca->in_mce == 1)
 					slb_save_contents(local_paca->mce_faulty_slbs);
+#endif
 				handled = mce_flush(MCE_FLUSH_SLB);
 				break;
 			case MCE_ERROR_TYPE_ERAT:
@@ -588,8 +590,10 @@ static int mce_handle_derror(struct pt_regs *regs,
 			/* attempt to correct the error */
 			switch (table[i].error_type) {
 			case MCE_ERROR_TYPE_SLB:
+#ifdef CONFIG_PPC_64S_HASH_MMU
 				if (local_paca->in_mce == 1)
 					slb_save_contents(local_paca->mce_faulty_slbs);
+#endif
 				if (mce_flush(MCE_FLUSH_SLB))
 					handled = 1;
 				break;