Merge tag 'powerpc-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Madhavan Srinivasan:

 - CONFIG_HZ changes to move the base_slice from 10ms to 1ms

 - Patchset to move some of the mutex handling to lock guard

 - Expose secvars relevant to the key management mode

 - Misc cleanups and fixes

Thanks to Ankit Chauhan, Christophe Leroy, Donet Tom, Gautam Menghani,
Haren Myneni, Johan Korsnes, Madadi Vineeth Reddy, Paul Mackerras,
Shrikanth Hegde, Srish Srinivasan, Thomas Fourier, Thomas Huth, Thomas
Weißschuh, Souradeep, Amit Machhiwal, R Nageswara Sastry, Venkat Rao
Bagalkote, Andrew Donnellan, Greg Kroah-Hartman, Mimi Zohar, Mukesh
Kumar Chaurasiya, Nayna Jain, Ritesh Harjani (IBM), Sourabh Jain, Srikar
Dronamraju, Stefan Berger, Tyrel Datwyler, and Kowshik Jois.

* tag 'powerpc-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (23 commits)
  arch/powerpc: Remove .interp section in vmlinux
  powerpc: Drop GPL boilerplate text with obsolete FSF address
  powerpc: Don't use %pK through printk
  arch: powerpc: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX
  misc: ocxl: Replace scnprintf() with sysfs_emit() in sysfs show functions
  integrity/platform_certs: Allow loading of keys in the static key management mode
  powerpc/secvar: Expose secvars relevant to the key management mode
  powerpc/pseries: Correct secvar format representation for static key management
  (powerpc/512) Fix possible `dma_unmap_single()` on uninitialized pointer
  powerpc: floppy: Add missing checks after DMA map
  book3s64/radix : Optimize vmemmap start alignment
  book3s64/radix : Handle error conditions properly in radix_vmemmap_populate
  powerpc/pseries/dlpar: Search DRC index from ibm,drc-indexes for IO add
  KVM: PPC: Book3S HV: Add H_VIRT mapping for tracing exits
  powerpc: sysdev: use lock guard for mutex
  powerpc: powernv: ocxl: use lock guard for mutex
  powerpc: book3s: vas: use lock guard for mutex
  powerpc: fadump: use lock guard for mutex
  powerpc: rtas: use lock guard for mutex
  powerpc: eeh: use lock guard for mutex
  ...

1 files changed, 19 insertions, 12 deletions

diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c
index 376dba5992f2..d865ec915f9d 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -1122,18 +1122,25 @@ int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, in
 	pte_t *pte;
 
 	/*
-	 * Make sure we align the start vmemmap addr so that we calculate
-	 * the correct start_pfn in altmap boundary check to decided whether
-	 * we should use altmap or RAM based backing memory allocation. Also
-	 * the address need to be aligned for set_pte operation.
-
-	 * If the start addr is already PMD_SIZE aligned we will try to use
-	 * a pmd mapping. We don't want to be too aggressive here beacause
-	 * that will cause more allocations in RAM. So only if the namespace
-	 * vmemmap start addr is PMD_SIZE aligned we will use PMD mapping.
+	 * If altmap is present, Make sure we align the start vmemmap addr
+	 * to PAGE_SIZE so that we calculate the correct start_pfn in
+	 * altmap boundary check to decide whether we should use altmap or
+	 * RAM based backing memory allocation. Also the address need to be
+	 * aligned for set_pte operation. If the start addr is already
+	 * PMD_SIZE aligned and with in the altmap boundary then we will
+	 * try to use a pmd size altmap mapping else we go for page size
+	 * mapping.
+	 *
+	 * If altmap is not present, align the vmemmap addr to PMD_SIZE and
+	 * always allocate a PMD size page for vmemmap backing.
+	 *
 	 */
 
-	start = ALIGN_DOWN(start, PAGE_SIZE);
+	if (altmap)
+		start = ALIGN_DOWN(start, PAGE_SIZE);
+	else
+		start = ALIGN_DOWN(start, PMD_SIZE);
+
 	for (addr = start; addr < end; addr = next) {
 		next = pmd_addr_end(addr, end);
 
@@ -1159,7 +1166,7 @@ int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, in
 			 * in altmap block allocation failures, in which case
 			 * we fallback to RAM for vmemmap allocation.
 			 */
-			if (!IS_ALIGNED(addr, PMD_SIZE) || (altmap &&
+			if (altmap && (!IS_ALIGNED(addr, PMD_SIZE) ||
 			    altmap_cross_boundary(altmap, addr, PMD_SIZE))) {
 				/*
 				 * make sure we don't create altmap mappings
@@ -1173,7 +1180,7 @@ int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, in
 				vmemmap_set_pmd(pmd, p, node, addr, next);
 				pr_debug("PMD_SIZE vmemmap mapping\n");
 				continue;
-			} else if (altmap) {
+			} else {
 				/*
 				 * A vmemmap block allocation can fail due to
 				 * alignment requirements and we trying to align