Merge tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Raise minimum supported machine generation to z10, which comes with
   various cleanups and code simplifications (usercopy/spectre
   mitigation/etc).

 - Rework extables and get rid of anonymous out-of-line fixups.

 - Page table helpers cleanup. Add set_pXd()/set_pte() helper functions.
   Covert pte_val()/pXd_val() macros to functions.

 - Optimize kretprobe handling by avoiding extra kprobe on
   __kretprobe_trampoline.

 - Add support for CEX8 crypto cards.

 - Allow to trigger AP bus rescan via writing to /sys/bus/ap/scans.

 - Add CONFIG_EXPOLINE_EXTERN option to build the kernel without COMDAT
   group sections which simplifies kpatch support.

 - Always use the packed stack layout and extend kernel unwinder tests.

 - Add sanity checks for ftrace code patching.

 - Add s390dbf debug log for the vfio_ap device driver.

 - Various virtual vs physical address confusion fixes.

 - Various small fixes and improvements all over the code.

* tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (69 commits)
  s390/test_unwind: add kretprobe tests
  s390/kprobes: Avoid additional kprobe in kretprobe handling
  s390: convert ".insn" encoding to instruction names
  s390: assume stckf is always present
  s390/nospec: move to single register thunks
  s390: raise minimum supported machine generation to z10
  s390/uaccess: Add copy_from/to_user_key functions
  s390/nospec: align and size extern thunks
  s390/nospec: add an option to use thunk-extern
  s390/nospec: generate single register thunks if possible
  s390/pci: make zpci_set_irq()/zpci_clear_irq() static
  s390: remove unused expoline to BC instructions
  s390/irq: use assignment instead of cast
  s390/traps: get rid of magic cast for per code
  s390/traps: get rid of magic cast for program interruption code
  s390/signal: fix typo in comments
  s390/asm-offsets: remove unused defines
  s390/test_unwind: avoid build warning with W=1
  s390: remove .fixup section
  s390/bpf: encode register within extable entry
  ...

1 files changed, 17 insertions, 16 deletions

diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 654019181a37..85195c18b2e8 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -98,9 +98,9 @@ static int walk_pte_level(pmd_t *pmdp, unsigned long addr, unsigned long end,
 		else if (flags & SET_MEMORY_RW)
 			new = pte_mkwrite(pte_mkdirty(new));
 		if (flags & SET_MEMORY_NX)
-			pte_val(new) |= _PAGE_NOEXEC;
+			new = set_pte_bit(new, __pgprot(_PAGE_NOEXEC));
 		else if (flags & SET_MEMORY_X)
-			pte_val(new) &= ~_PAGE_NOEXEC;
+			new = clear_pte_bit(new, __pgprot(_PAGE_NOEXEC));
 		pgt_set((unsigned long *)ptep, pte_val(new), addr, CRDTE_DTT_PAGE);
 		ptep++;
 		addr += PAGE_SIZE;
@@ -127,11 +127,11 @@ static int split_pmd_page(pmd_t *pmdp, unsigned long addr)
 		prot &= ~_PAGE_NOEXEC;
 	ptep = pt_dir;
 	for (i = 0; i < PTRS_PER_PTE; i++) {
-		pte_val(*ptep) = pte_addr | prot;
+		set_pte(ptep, __pte(pte_addr | prot));
 		pte_addr += PAGE_SIZE;
 		ptep++;
 	}
-	pmd_val(new) = __pa(pt_dir) | _SEGMENT_ENTRY;
+	new = __pmd(__pa(pt_dir) | _SEGMENT_ENTRY);
 	pgt_set((unsigned long *)pmdp, pmd_val(new), addr, CRDTE_DTT_SEGMENT);
 	update_page_count(PG_DIRECT_MAP_4K, PTRS_PER_PTE);
 	update_page_count(PG_DIRECT_MAP_1M, -1);
@@ -148,9 +148,9 @@ static void modify_pmd_page(pmd_t *pmdp, unsigned long addr,
 	else if (flags & SET_MEMORY_RW)
 		new = pmd_mkwrite(pmd_mkdirty(new));
 	if (flags & SET_MEMORY_NX)
-		pmd_val(new) |= _SEGMENT_ENTRY_NOEXEC;
+		new = set_pmd_bit(new, __pgprot(_SEGMENT_ENTRY_NOEXEC));
 	else if (flags & SET_MEMORY_X)
-		pmd_val(new) &= ~_SEGMENT_ENTRY_NOEXEC;
+		new = clear_pmd_bit(new, __pgprot(_SEGMENT_ENTRY_NOEXEC));
 	pgt_set((unsigned long *)pmdp, pmd_val(new), addr, CRDTE_DTT_SEGMENT);
 }
 
@@ -208,11 +208,11 @@ static int split_pud_page(pud_t *pudp, unsigned long addr)
 		prot &= ~_SEGMENT_ENTRY_NOEXEC;
 	pmdp = pm_dir;
 	for (i = 0; i < PTRS_PER_PMD; i++) {
-		pmd_val(*pmdp) = pmd_addr | prot;
+		set_pmd(pmdp, __pmd(pmd_addr | prot));
 		pmd_addr += PMD_SIZE;
 		pmdp++;
 	}
-	pud_val(new) = __pa(pm_dir) | _REGION3_ENTRY;
+	new = __pud(__pa(pm_dir) | _REGION3_ENTRY);
 	pgt_set((unsigned long *)pudp, pud_val(new), addr, CRDTE_DTT_REGION3);
 	update_page_count(PG_DIRECT_MAP_1M, PTRS_PER_PMD);
 	update_page_count(PG_DIRECT_MAP_2G, -1);
@@ -229,9 +229,9 @@ static void modify_pud_page(pud_t *pudp, unsigned long addr,
 	else if (flags & SET_MEMORY_RW)
 		new = pud_mkwrite(pud_mkdirty(new));
 	if (flags & SET_MEMORY_NX)
-		pud_val(new) |= _REGION_ENTRY_NOEXEC;
+		new = set_pud_bit(new, __pgprot(_REGION_ENTRY_NOEXEC));
 	else if (flags & SET_MEMORY_X)
-		pud_val(new) &= ~_REGION_ENTRY_NOEXEC;
+		new = clear_pud_bit(new, __pgprot(_REGION_ENTRY_NOEXEC));
 	pgt_set((unsigned long *)pudp, pud_val(new), addr, CRDTE_DTT_REGION3);
 }
 
@@ -347,23 +347,24 @@ static void ipte_range(pte_t *pte, unsigned long address, int nr)
 void __kernel_map_pages(struct page *page, int numpages, int enable)
 {
 	unsigned long address;
+	pte_t *ptep, pte;
 	int nr, i, j;
-	pte_t *pte;
 
 	for (i = 0; i < numpages;) {
 		address = (unsigned long)page_to_virt(page + i);
-		pte = virt_to_kpte(address);
-		nr = (unsigned long)pte >> ilog2(sizeof(long));
+		ptep = virt_to_kpte(address);
+		nr = (unsigned long)ptep >> ilog2(sizeof(long));
 		nr = PTRS_PER_PTE - (nr & (PTRS_PER_PTE - 1));
 		nr = min(numpages - i, nr);
 		if (enable) {
 			for (j = 0; j < nr; j++) {
-				pte_val(*pte) &= ~_PAGE_INVALID;
+				pte = clear_pte_bit(*ptep, __pgprot(_PAGE_INVALID));
+				set_pte(ptep, pte);
 				address += PAGE_SIZE;
-				pte++;
+				ptep++;
 			}
 		} else {
-			ipte_range(pte, address, nr);
+			ipte_range(ptep, address, nr);
 		}
 		i += nr;
 	}