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linux/arch/s390/include/asm
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Vasily Gorbik 73045a08cf s390: unify identity mapping limits handling 
Currently we have to consider too many different values which
in the end only affect identity mapping size. These are:
1. max_physmem_end - end of physical memory online or standby.
   Always <= end of the last online memory block (get_mem_detect_end()).
2. CONFIG_MAX_PHYSMEM_BITS - the maximum size of physical memory the
   kernel is able to support.
3. "mem=" kernel command line option which limits physical memory usage.
4. OLDMEM_BASE which is a kdump memory limit when the kernel is executed as
   crash kernel.
5. "hsa" size which is a memory limit when the kernel is executed during
   zfcp/nvme dump.

Through out kernel startup and run we juggle all those values at once
but that does not bring any amusement, only confusion and complexity.

Unify all those values to a single one we should really care, that is
our identity mapping size.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2020-11-20 19:19:10 +01:00
..
fpu
trace
vdso s390/vdso: remove empty unused file 2020-11-03 15:12:15 +01:00
airq.h s390/airq: use DMA memory for adapter interrupts 2019-06-15 12:25:05 +02:00
alternative-asm.h
alternative.h s390/alternatives: make use of asm_inline 2019-10-31 17:20:51 +01:00
ap.h s390/zcrypt: Fix wrong dispatching for control domain CPRBs 2019-05-28 14:49:38 +02:00
appldata.h
archrandom.h s390x: Mark archrandom.h functions __must_check 2020-01-25 12:18:51 -05:00
asm-const.h s390/kernel: unify EX_TABLE* implementations 2020-07-20 10:55:45 +02:00
asm-prototypes.h
atomic.h s390/atomic: circumvent gcc 10 build regression 2020-08-11 18:16:08 +02:00
atomic_ops.h s390/atomic,bitops: mark function(s) __always_inline 2019-10-04 16:37:33 +02:00
barrier.h
bitops.h kasan: support instrumented bitops combined with generic bitops 2019-11-07 13:15:39 +11:00
boot_data.h
bug.h printk: Make linux/printk.h self-contained 2020-07-27 17:46:24 +09:00
bugs.h
cache.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
ccwdev.h s390/cio: fix kernel-doc markups in cio driver. 2020-11-20 19:19:10 +01:00
ccwgroup.h s390/net: remove pm ops from ccwgroup drivers 2020-05-19 12:48:39 -07:00
checksum.h s390 updates for the 5.10 merge window 2020-10-16 12:36:38 -07:00
chpid.h
chsc.h s390/cio: Add new Operation Code OC3 to PNSO 2020-09-15 13:21:46 -07:00
cio.h s390/cio: fix kernel-doc markups in cio driver. 2020-11-20 19:19:10 +01:00
clocksource.h s390: convert to GENERIC_VDSO 2020-08-26 18:47:21 +02:00
clp.h s390/pci: Implement ioremap_wc/prot() with MIO 2020-09-14 10:30:07 +02:00
cmb.h
cmpxchg.h
compat.h compat: lift compat_s64 and compat_u64 to <asm-generic/compat.h> 2020-09-17 13:00:46 -04:00
cpacf.h s390: mark __cpacf_query() as __always_inline 2019-10-04 16:37:33 +02:00
cpcmd.h
cpu.h
cpu_mcf.h
cpu_mf-insn.h
cpu_mf.h s390/cpum_sf: Replace function name in debug statements 2019-11-30 10:52:46 +01:00
cpufeature.h
cputime.h
crw.h
css_chars.h s390/cio: Add new Operation Code OC3 to PNSO 2020-09-15 13:21:46 -07:00
ctl_reg.h s390/early: move control registers setup in C code 2019-11-20 12:58:12 +01:00
current.h
debug.h s390/debug: debug feature version 3 2020-08-11 18:16:43 +02:00
delay.h s390/udelay: make it work for the early code 2020-11-09 11:20:58 +01:00
diag.h s390/setup: diag 318: refactor struct 2020-06-23 09:16:48 +02:00
dis.h
dma.h
dwarf.h
eadm.h
ebcdic.h
elf.h
exec.h
extable.h s390/kernel: expand exception table logic to allow new handling options 2020-07-20 10:55:50 +02:00
extmem.h
facility.h s390: fix stfle zero padding 2019-06-19 17:54:27 +02:00
fcx.h
ftrace.h
futex.h [parisc, s390, sparc64] no need for access_ok() in futex handling 2020-03-27 23:58:52 -04:00
gmap.h s390: remove orphaned function declarations 2020-09-30 12:09:54 +02:00
hardirq.h
hugetlb.h mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
hw_irq.h s390/irq: make init_ext_interrupts static 2020-03-11 14:18:44 +01:00
idals.h s390/idal: use struct_size() in kmalloc() 2019-06-04 15:03:18 +02:00
idle.h
io.h s390/pci: Implement ioremap_wc/prot() with MIO 2020-09-14 10:30:07 +02:00
ipl.h s390/nvme: support firmware-assisted dump to NVMe disks 2020-10-02 14:40:48 +02:00
irq.h
irqflags.h
isc.h
itcw.h
jump_label.h s390/jump_label: use "i" constraint for clang 2020-01-22 13:05:35 +01:00
kasan.h s390/kasan: move memory needs estimation into a function 2020-11-09 11:20:59 +01:00
Kbuild KVM: Move x86's version of struct kvm_mmu_memory_cache to common code 2020-07-09 13:29:42 -04:00
kdebug.h
kexec.h
kprobes.h s390: support KPROBES_ON_FTRACE 2020-01-30 13:07:55 +01:00
kvm_host.h KVM: s390: Enhancement for 5.9 2020-08-03 14:19:13 -04:00
kvm_para.h
linkage.h s390/kernel: expand exception table logic to allow new handling options 2020-07-20 10:55:50 +02:00
livepatch.h
lowcore.h s390: prevent leaking kernel address in BEAR 2020-03-10 15:16:25 +01:00
mem_detect.h s390/mem_detect: provide single get_mem_detect_end 2019-08-26 12:51:18 +02:00
mem_encrypt.h s390/mm: Remove sev_active() function 2019-08-09 22:52:11 +10:00
mmu.h s390 updates for the 5.7 merge window 2020-04-04 09:45:50 -07:00
mmu_context.h s390/mm: remove unused clear_user_asce() 2020-11-12 12:11:25 +01:00
mmzone.h
module.h
nmi.h s390: remove critical section cleanup from entry.S 2020-05-28 12:21:54 +02:00
nospec-branch.h
nospec-insn.h
numa.h s390/mm: remove fake numa support 2020-02-27 16:02:21 +01:00
os_info.h
page-states.h
page.h mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00
pci.h VFIO updates for v5.10-rc1 2020-10-22 13:00:44 -07:00
pci_clp.h s390/pci: Implement ioremap_wc/prot() with MIO 2020-09-14 10:30:07 +02:00
pci_debug.h
pci_dma.h s390/pci: remove unused functions 2020-06-29 16:32:09 +02:00
pci_insn.h s390: fix setting of mio addressing control 2019-07-11 20:40:02 +02:00
pci_io.h s390/pci: Fix s390_mmio_read/write with MIO 2020-05-14 23:21:37 +02:00
percpu.h s390: don't trace preemption in percpu macros 2020-08-26 18:07:04 +02:00
perf_event.h s390: implement perf_arch_fetch_caller_regs 2019-11-30 10:52:44 +01:00
pgalloc.h s390: remove orphaned function declarations 2020-09-30 12:09:54 +02:00
pgtable.h s390/mm: extend default vmalloc area size to 512GB 2020-11-09 11:20:59 +01:00
pkey.h s390/pkey: pkey cleanup: narrow in-kernel API, fix some variable types 2019-08-21 12:58:53 +02:00
pnet.h
preempt.h sched/rt, s390: Use CONFIG_PREEMPTION 2019-12-08 14:37:35 +01:00
processor.h s390: remove unused s390_base_ext_handler 2020-11-09 11:20:58 +01:00
ptdump.h s390: add ARCH_HAS_DEBUG_WX support 2020-09-14 11:38:35 +02:00
ptrace.h s390: enable HAVE_FUNCTION_ERROR_INJECTION 2020-07-27 10:33:28 +02:00
purgatory.h
qdio.h s390/qdio: always use dev_name() for device name in QIB 2020-09-14 10:30:07 +02:00
runtime_instr.h
schid.h
sclp.h s390/sclp: provide extended sccb support 2020-11-18 12:16:02 +01:00
scsw.h
seccomp.h
sections.h s390: correct __bootdata / __bootdata_preserved macros 2020-10-26 14:18:01 +01:00
serial.h
set_memory.h s390/mm,ptdump: hold cpa mutex while walking for kernel page table dump 2020-09-14 11:38:34 +02:00
setup.h s390: unify identity mapping limits handling 2020-11-20 19:19:10 +01:00
shmparam.h
signal.h
sigp.h
smp.h s390: remove orphaned function declarations 2020-09-30 12:09:54 +02:00
sparsemem.h
spinlock.h s390/alternatives: make use of asm_inline 2019-10-31 17:20:51 +01:00
spinlock_types.h
stacktrace.h s390: fix register clobbering in CALL_ON_STACK 2019-11-30 10:52:47 +01:00
stp.h s390/stp: add support for leap seconds 2020-09-26 15:51:21 +02:00
string.h s390/kasan: provide uninstrumented __strlen 2019-08-21 12:58:52 +02:00
switch_to.h
syscall.h s390: fix syscall_get_error for compat processes 2020-06-17 23:05:05 +02:00
syscall_wrapper.h s390: enable HAVE_FUNCTION_ERROR_INJECTION 2020-07-27 10:33:28 +02:00
sysinfo.h
termios.h
thread_info.h s390: Break cyclic percpu include 2020-07-10 12:00:02 +02:00
timex.h s390/time: remove unused function 2020-06-29 16:32:14 +02:00
tlb.h mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
tlbflush.h s390: remove orphaned function declarations 2020-09-30 12:09:54 +02:00
topology.h s390/numa: set node distance to LOCAL_DISTANCE 2020-08-11 18:16:35 +02:00
uaccess.h s390/uaccess: fix indentation 2020-10-09 23:45:30 +02:00
unistd.h s390: wire up clone3 system call 2019-07-23 10:45:53 +02:00
unwind.h s390/unwind: start unwinding from reliable state 2019-11-30 10:52:48 +01:00
uprobes.h
user.h
uv.h s390/uv: add destroy page call 2020-09-14 11:38:35 +02:00
vdso.h s390/vdso: remove orphaned declarations 2020-09-30 12:09:54 +02:00
vga.h
vmalloc.h mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h> 2019-12-10 10:12:55 +01:00
vmlinux.lds.h
vtime.h
vtimer.h s390: remove orphaned function declarations 2020-09-30 12:09:54 +02:00
vx-insn.h
xor.h