Merge tag 's390-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:
 "Besides all the small improvements and cleanups the most notable part
  is the fast vector/SIMD implementation of the ChaCha20 stream cipher,
  which is an adaptation of Andy Polyakov's code for the kernel.

  Summary:

   - add fast vector/SIMD implementation of the ChaCha20 stream cipher,
     which mainly adapts Andy Polyakov's code for the kernel

   - add status attribute to AP queue device so users can easily figure
     out its status

   - fix race in page table release code, and and lots of documentation

   - remove uevent suppress from cio device driver, since it turned out
     that it generated more problems than it solved problems

   - quite a lot of virtual vs physical address confusion fixes

   - various other small improvements and cleanups all over the place"

* tag 's390-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (39 commits)
  s390/dasd: use default_groups in kobj_type
  s390/sclp_sd: use default_groups in kobj_type
  s390/pci: simplify __pciwb_mio() inline asm
  s390: remove unused TASK_SIZE_OF
  s390/crash_dump: fix virtual vs physical address handling
  s390/crypto: fix compile error for ChaCha20 module
  s390/mm: check 2KB-fragment page on release
  s390/mm: better annotate 2KB pagetable fragments handling
  s390/mm: fix 2KB pgtable release race
  s390/sclp: release SCLP early buffer after kernel initialization
  s390/nmi: disable interrupts on extended save area update
  s390/zcrypt: CCA control CPRB sending
  s390/disassembler: update opcode table
  s390/uv: fix memblock virtual vs physical address confusion
  s390/smp: fix memblock_phys_free() vs memblock_free() confusion
  s390/sclp: fix memblock_phys_free() vs memblock_free() confusion
  s390/exit: remove dead reference to do_exit from copy_thread
  s390/ap: add missing virt_to_phys address conversion
  s390/pgalloc: use pointers instead of unsigned long values
  s390/pgalloc: add virt/phys address handling to base asce functions
  ...

1 files changed, 18 insertions, 17 deletions

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 78a8ea6fd582..2bad902d8437 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -212,7 +212,7 @@ static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu)
 	lc->return_lpswe = gen_lpswe(__LC_RETURN_PSW);
 	lc->return_mcck_lpswe = gen_lpswe(__LC_RETURN_MCCK_PSW);
 	lc->preempt_count = PREEMPT_DISABLED;
-	if (nmi_alloc_per_cpu(lc))
+	if (nmi_alloc_mcesa(&lc->mcesad))
 		goto out;
 	lowcore_ptr[cpu] = lc;
 	pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, (u32)(unsigned long) lc);
@@ -239,7 +239,7 @@ static void pcpu_free_lowcore(struct pcpu *pcpu)
 	mcck_stack = lc->mcck_stack - STACK_INIT_OFFSET;
 	pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, 0);
 	lowcore_ptr[cpu] = NULL;
-	nmi_free_per_cpu(lc);
+	nmi_free_mcesa(&lc->mcesad);
 	stack_free(async_stack);
 	stack_free(mcck_stack);
 	free_pages(nodat_stack, THREAD_SIZE_ORDER);
@@ -622,7 +622,7 @@ int smp_store_status(int cpu)
 		return -EIO;
 	if (!MACHINE_HAS_VX && !MACHINE_HAS_GS)
 		return 0;
-	pa = __pa(lc->mcesad & MCESA_ORIGIN_MASK);
+	pa = lc->mcesad & MCESA_ORIGIN_MASK;
 	if (MACHINE_HAS_GS)
 		pa |= lc->mcesad & MCESA_LC_MASK;
 	if (__pcpu_sigp_relax(pcpu->address, SIGP_STORE_ADDITIONAL_STATUS,
@@ -658,26 +658,22 @@ int smp_store_status(int cpu)
  *    deactivates the elfcorehdr= kernel parameter
  */
 static __init void smp_save_cpu_vxrs(struct save_area *sa, u16 addr,
-				     bool is_boot_cpu, unsigned long page)
+				     bool is_boot_cpu, __vector128 *vxrs)
 {
-	__vector128 *vxrs = (__vector128 *) page;
-
 	if (is_boot_cpu)
 		vxrs = boot_cpu_vector_save_area;
 	else
-		__pcpu_sigp_relax(addr, SIGP_STORE_ADDITIONAL_STATUS, page);
+		__pcpu_sigp_relax(addr, SIGP_STORE_ADDITIONAL_STATUS, __pa(vxrs));
 	save_area_add_vxrs(sa, vxrs);
 }
 
 static __init void smp_save_cpu_regs(struct save_area *sa, u16 addr,
-				     bool is_boot_cpu, unsigned long page)
+				     bool is_boot_cpu, void *regs)
 {
-	void *regs = (void *) page;
-
 	if (is_boot_cpu)
 		copy_oldmem_kernel(regs, (void *) __LC_FPREGS_SAVE_AREA, 512);
 	else
-		__pcpu_sigp_relax(addr, SIGP_STORE_STATUS_AT_ADDRESS, page);
+		__pcpu_sigp_relax(addr, SIGP_STORE_STATUS_AT_ADDRESS, __pa(regs));
 	save_area_add_regs(sa, regs);
 }
 
@@ -685,14 +681,14 @@ void __init smp_save_dump_cpus(void)
 {
 	int addr, boot_cpu_addr, max_cpu_addr;
 	struct save_area *sa;
-	unsigned long page;
 	bool is_boot_cpu;
+	void *page;
 
 	if (!(oldmem_data.start || is_ipl_type_dump()))
 		/* No previous system present, normal boot. */
 		return;
 	/* Allocate a page as dumping area for the store status sigps */
-	page = memblock_phys_alloc_range(PAGE_SIZE, PAGE_SIZE, 0, 1UL << 31);
+	page = memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
 	if (!page)
 		panic("ERROR: Failed to allocate %lx bytes below %lx\n",
 		      PAGE_SIZE, 1UL << 31);
@@ -723,7 +719,7 @@ void __init smp_save_dump_cpus(void)
 			/* Get the CPU registers */
 			smp_save_cpu_regs(sa, addr, is_boot_cpu, page);
 	}
-	memblock_phys_free(page, PAGE_SIZE);
+	memblock_free(page, PAGE_SIZE);
 	diag_amode31_ops.diag308_reset();
 	pcpu_set_smt(0);
 }
@@ -880,7 +876,7 @@ void __init smp_detect_cpus(void)
 
 	/* Add CPUs present at boot */
 	__smp_rescan_cpus(info, true);
-	memblock_phys_free((unsigned long)info, sizeof(*info));
+	memblock_free(info, sizeof(*info));
 }
 
 /*
@@ -1271,14 +1267,15 @@ static int __init smp_reinit_ipl_cpu(void)
 {
 	unsigned long async_stack, nodat_stack, mcck_stack;
 	struct lowcore *lc, *lc_ipl;
-	unsigned long flags;
+	unsigned long flags, cr0;
+	u64 mcesad;
 
 	lc_ipl = lowcore_ptr[0];
 	lc = (struct lowcore *)	__get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER);
 	nodat_stack = __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER);
 	async_stack = stack_alloc();
 	mcck_stack = stack_alloc();
-	if (!lc || !nodat_stack || !async_stack || !mcck_stack)
+	if (!lc || !nodat_stack || !async_stack || !mcck_stack || nmi_alloc_mcesa(&mcesad))
 		panic("Couldn't allocate memory");
 
 	local_irq_save(flags);
@@ -1287,6 +1284,10 @@ static int __init smp_reinit_ipl_cpu(void)
 	S390_lowcore.nodat_stack = nodat_stack + STACK_INIT_OFFSET;
 	S390_lowcore.async_stack = async_stack + STACK_INIT_OFFSET;
 	S390_lowcore.mcck_stack = mcck_stack + STACK_INIT_OFFSET;
+	__ctl_store(cr0, 0, 0);
+	__ctl_clear_bit(0, 28); /* disable lowcore protection */
+	S390_lowcore.mcesad = mcesad;
+	__ctl_load(cr0, 0, 0);
 	lowcore_ptr[0] = lc;
 	local_mcck_enable();
 	local_irq_restore(flags);