Merge tag 'powerpc-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Support for configuring secure boot with user-defined keys on PowerVM
   LPARs

 - Simplify the replay of soft-masked IRQs by making it non-recursive

 - Add support for KCSAN on 64-bit Book3S

 - Improvements to the API & code which interacts with RTAS (pseries
   firmware)

 - Change 32-bit powermac to assign PCI bus numbers per domain by
   default

 - Some improvements to the 32-bit BPF JIT

 - Various other small features and fixes

Thanks to Anders Roxell, Andrew Donnellan, Andrew Jeffery, Benjamin
Gray, Christophe Leroy, Frederic Barrat, Ganesh Goudar, Geoff Levand,
Greg Kroah-Hartman, Jan-Benedict Glaw, Josh Poimboeuf, Kajol Jain,
Laurent Dufour, Mahesh Salgaonkar, Mathieu Desnoyers, Mimi Zohar, Murphy
Zhou, Nathan Chancellor, Nathan Lynch, Nayna Jain, Nicholas Piggin, Pali
Rohár, Petr Mladek, Rohan McLure, Russell Currey, Sachin Sant, Sathvika
Vasireddy, Sourabh Jain, Stefan Berger, Stephen Rothwell, and Sudhakar
Kuppusamy.

* tag 'powerpc-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (114 commits)
  powerpc/pseries: Avoid hcall in plpks_is_available() on non-pseries
  powerpc: dts: turris1x.dts: Set lower priority for CPLD syscon-reboot
  powerpc/e500: Add missing prototype for 'relocate_init'
  powerpc/64: Fix unannotated intra-function call warning
  powerpc/epapr: Don't use wrteei on non booke
  powerpc: Pass correct CPU reference to assembler
  powerpc/mm: Rearrange if-else block to avoid clang warning
  powerpc/nohash: Fix build with llvm-as
  powerpc/nohash: Fix build error with binutils >= 2.38
  powerpc/pseries: Fix endianness issue when parsing PLPKS secvar flags
  macintosh: windfarm: Use unsigned type for 1-bit bitfields
  powerpc/kexec_file: print error string on usable memory property update failure
  powerpc/machdep: warn when machine_is() used too early
  powerpc/64: Replace -mcpu=e500mc64 by -mcpu=e5500
  powerpc/eeh: Set channel state after notifying the drivers
  selftests/powerpc: Fix incorrect kernel headers search path
  powerpc/rtas: arch-wide function token lookup conversions
  powerpc/rtas: introduce rtas_function_token() API
  powerpc/pseries/lpar: convert to papr_sysparm API
  powerpc/pseries/hv-24x7: convert to papr_sysparm API
  ...

5 files changed, 44 insertions, 40 deletions

diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c
index 44a35ed4f686..fedffe3ae136 100644
--- a/arch/powerpc/mm/book3s64/hash_utils.c
+++ b/arch/powerpc/mm/book3s64/hash_utils.c
@@ -1051,7 +1051,8 @@ static void __init htab_initialize(void)
 		static_branch_enable(&stress_hpt_key);
 		// Too early to use nr_cpu_ids, so use NR_CPUS
 		tmp = memblock_phys_alloc_range(sizeof(struct stress_hpt_struct) * NR_CPUS,
-						0, 0, MEMBLOCK_ALLOC_ANYWHERE);
+						__alignof__(struct stress_hpt_struct),
+						0, MEMBLOCK_ALLOC_ANYWHERE);
 		memset((void *)tmp, 0xff, sizeof(struct stress_hpt_struct) * NR_CPUS);
 		stress_hpt_struct = __va(tmp);
 
diff --git a/arch/powerpc/mm/book3s64/radix_tlb.c b/arch/powerpc/mm/book3s64/radix_tlb.c
index 4e29b619578c..e50bc5fc7ddf 100644
--- a/arch/powerpc/mm/book3s64/radix_tlb.c
+++ b/arch/powerpc/mm/book3s64/radix_tlb.c
@@ -700,12 +700,13 @@ static inline void _tlbiel_va_range_multicast(struct mm_struct *mm,
  */
 void radix__local_flush_tlb_mm(struct mm_struct *mm)
 {
-	unsigned long pid;
+	unsigned long pid = mm->context.id;
+
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
+		return;
 
 	preempt_disable();
-	pid = mm->context.id;
-	if (pid != MMU_NO_CONTEXT)
-		_tlbiel_pid(pid, RIC_FLUSH_TLB);
+	_tlbiel_pid(pid, RIC_FLUSH_TLB);
 	preempt_enable();
 }
 EXPORT_SYMBOL(radix__local_flush_tlb_mm);
@@ -713,12 +714,13 @@ EXPORT_SYMBOL(radix__local_flush_tlb_mm);
 #ifndef CONFIG_SMP
 void radix__local_flush_all_mm(struct mm_struct *mm)
 {
-	unsigned long pid;
+	unsigned long pid = mm->context.id;
+
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
+		return;
 
 	preempt_disable();
-	pid = mm->context.id;
-	if (pid != MMU_NO_CONTEXT)
-		_tlbiel_pid(pid, RIC_FLUSH_ALL);
+	_tlbiel_pid(pid, RIC_FLUSH_ALL);
 	preempt_enable();
 }
 EXPORT_SYMBOL(radix__local_flush_all_mm);
@@ -732,12 +734,13 @@ static void __flush_all_mm(struct mm_struct *mm, bool fullmm)
 void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
 				       int psize)
 {
-	unsigned long pid;
+	unsigned long pid = mm->context.id;
+
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
+		return;
 
 	preempt_disable();
-	pid = mm->context.id;
-	if (pid != MMU_NO_CONTEXT)
-		_tlbiel_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
+	_tlbiel_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
 	preempt_enable();
 }
 
@@ -945,7 +948,7 @@ void radix__flush_tlb_mm(struct mm_struct *mm)
 	enum tlb_flush_type type;
 
 	pid = mm->context.id;
-	if (unlikely(pid == MMU_NO_CONTEXT))
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
 		return;
 
 	preempt_disable();
@@ -985,7 +988,7 @@ static void __flush_all_mm(struct mm_struct *mm, bool fullmm)
 	enum tlb_flush_type type;
 
 	pid = mm->context.id;
-	if (unlikely(pid == MMU_NO_CONTEXT))
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
 		return;
 
 	preempt_disable();
@@ -1024,7 +1027,7 @@ void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
 	enum tlb_flush_type type;
 
 	pid = mm->context.id;
-	if (unlikely(pid == MMU_NO_CONTEXT))
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
 		return;
 
 	preempt_disable();
@@ -1104,6 +1107,9 @@ void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end)
 }
 EXPORT_SYMBOL(radix__flush_tlb_kernel_range);
 
+/*
+ * Doesn't appear to be used anywhere. Remove.
+ */
 #define TLB_FLUSH_ALL -1UL
 
 /*
@@ -1125,23 +1131,22 @@ static inline void __radix__flush_tlb_range(struct mm_struct *mm,
 	unsigned int page_shift = mmu_psize_defs[mmu_virtual_psize].shift;
 	unsigned long page_size = 1UL << page_shift;
 	unsigned long nr_pages = (end - start) >> page_shift;
-	bool fullmm = (end == TLB_FLUSH_ALL);
 	bool flush_pid, flush_pwc = false;
 	enum tlb_flush_type type;
 
 	pid = mm->context.id;
-	if (unlikely(pid == MMU_NO_CONTEXT))
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
 		return;
 
+	WARN_ON_ONCE(end == TLB_FLUSH_ALL);
+
 	preempt_disable();
 	smp_mb(); /* see radix__flush_tlb_mm */
-	type = flush_type_needed(mm, fullmm);
+	type = flush_type_needed(mm, false);
 	if (type == FLUSH_TYPE_NONE)
 		goto out;
 
-	if (fullmm)
-		flush_pid = true;
-	else if (type == FLUSH_TYPE_GLOBAL)
+	if (type == FLUSH_TYPE_GLOBAL)
 		flush_pid = nr_pages > tlb_single_page_flush_ceiling;
 	else
 		flush_pid = nr_pages > tlb_local_single_page_flush_ceiling;
@@ -1179,15 +1184,12 @@ static inline void __radix__flush_tlb_range(struct mm_struct *mm,
 			}
 		}
 	} else {
-		bool hflush = false;
+		bool hflush;
 		unsigned long hstart, hend;
 
-		if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) {
-			hstart = (start + PMD_SIZE - 1) & PMD_MASK;
-			hend = end & PMD_MASK;
-			if (hstart < hend)
-				hflush = true;
-		}
+		hstart = (start + PMD_SIZE - 1) & PMD_MASK;
+		hend = end & PMD_MASK;
+		hflush = IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && hstart < hend;
 
 		if (type == FLUSH_TYPE_LOCAL) {
 			asm volatile("ptesync": : :"memory");
@@ -1302,7 +1304,7 @@ void radix__tlb_flush(struct mmu_gather *tlb)
 	 * that flushes the process table entry cache upon process teardown.
 	 * See the comment for radix in arch_exit_mmap().
 	 */
-	if (tlb->fullmm || tlb->need_flush_all) {
+	if (tlb->fullmm) {
 		__flush_all_mm(mm, true);
 	} else if ( (psize = radix_get_mmu_psize(page_size)) == -1) {
 		if (!tlb->freed_tables)
@@ -1325,25 +1327,22 @@ static void __radix__flush_tlb_range_psize(struct mm_struct *mm,
 	unsigned int page_shift = mmu_psize_defs[psize].shift;
 	unsigned long page_size = 1UL << page_shift;
 	unsigned long nr_pages = (end - start) >> page_shift;
-	bool fullmm = (end == TLB_FLUSH_ALL);
 	bool flush_pid;
 	enum tlb_flush_type type;
 
 	pid = mm->context.id;
-	if (unlikely(pid == MMU_NO_CONTEXT))
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
 		return;
 
-	fullmm = (end == TLB_FLUSH_ALL);
+	WARN_ON_ONCE(end == TLB_FLUSH_ALL);
 
 	preempt_disable();
 	smp_mb(); /* see radix__flush_tlb_mm */
-	type = flush_type_needed(mm, fullmm);
+	type = flush_type_needed(mm, false);
 	if (type == FLUSH_TYPE_NONE)
 		goto out;
 
-	if (fullmm)
-		flush_pid = true;
-	else if (type == FLUSH_TYPE_GLOBAL)
+	if (type == FLUSH_TYPE_GLOBAL)
 		flush_pid = nr_pages > tlb_single_page_flush_ceiling;
 	else
 		flush_pid = nr_pages > tlb_local_single_page_flush_ceiling;
@@ -1406,7 +1405,7 @@ void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr)
 	enum tlb_flush_type type;
 
 	pid = mm->context.id;
-	if (unlikely(pid == MMU_NO_CONTEXT))
+	if (WARN_ON_ONCE(pid == MMU_NO_CONTEXT))
 		return;
 
 	/* 4k page size, just blow the world */
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index bd9784f77f2e..c6dccb4f06dc 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -120,6 +120,7 @@ extern int switch_to_as1(void);
 extern void restore_to_as0(int esel, int offset, void *dt_ptr, int bootcpu);
 void create_kaslr_tlb_entry(int entry, unsigned long virt, phys_addr_t phys);
 void reloc_kernel_entry(void *fdt, int addr);
+void relocate_init(u64 dt_ptr, phys_addr_t start);
 extern int is_second_reloc;
 #endif
 extern void loadcam_entry(unsigned int index);
diff --git a/arch/powerpc/mm/nohash/e500_hugetlbpage.c b/arch/powerpc/mm/nohash/e500_hugetlbpage.c
index c7d4b317a823..58c8d9849cb1 100644
--- a/arch/powerpc/mm/nohash/e500_hugetlbpage.c
+++ b/arch/powerpc/mm/nohash/e500_hugetlbpage.c
@@ -45,7 +45,9 @@ static inline void book3e_tlb_lock(void)
 	if (!cpu_has_feature(CPU_FTR_SMT))
 		return;
 
-	asm volatile("1: lbarx %0, 0, %1;"
+	asm volatile(".machine push;"
+		     ".machine e6500;"
+		     "1: lbarx %0, 0, %1;"
 		     "cmpwi %0, 0;"
 		     "bne 2f;"
 		     "stbcx. %2, 0, %1;"
@@ -56,6 +58,7 @@ static inline void book3e_tlb_lock(void)
 		     "bne 2b;"
 		     "b 1b;"
 		     "3:"
+		     ".machine pop;"
 		     : "=&r" (tmp)
 		     : "r" (&paca->tcd_ptr->lock), "r" (token)
 		     : "memory");
diff --git a/arch/powerpc/mm/nohash/tlb_low_64e.S b/arch/powerpc/mm/nohash/tlb_low_64e.S
index 76cf456d7976..7e0b8fe1c279 100644
--- a/arch/powerpc/mm/nohash/tlb_low_64e.S
+++ b/arch/powerpc/mm/nohash/tlb_low_64e.S
@@ -351,7 +351,7 @@ END_FTR_SECTION_NESTED(CPU_FTR_EMB_HV,CPU_FTR_EMB_HV,532)
 
 	mfspr	r15,SPRN_MAS2
 	isync
-	tlbilxva 0,r15
+	PPC_TLBILX_VA(0,R15)
 	isync
 
 	mtspr	SPRN_MAS6,r10