linux/arch/riscv/include/asm
Alexandre Ghiti 6d7f91d914
riscv: Get rid of CONFIG_PHYS_RAM_BASE in kernel physical address conversion
The usage of CONFIG_PHYS_RAM_BASE for all kernel types was a mistake:
this value is implementation-specific and this breaks the genericity of
the RISC-V kernel.

Fix this by introducing a new variable phys_ram_base that holds this
value at runtime and use it in the kernel physical address conversion
macro. Since this value is used only for XIP kernels, evaluate it only if
CONFIG_XIP_KERNEL is set which in addition optimizes this macro for
standard kernels at compile-time.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Tested-by: Emil Renner Berthing <kernel@esmil.dk>
Reviewed-by: Jisheng Zhang <jszhang@kernel.org>
Fixes: 44c9225729 ("RISC-V: enable XIP")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-08-06 22:41:28 -07:00
..
vdso RISC-V: fix barrier() use in <vdso/processor.h> 2020-11-25 09:44:27 -08:00
Kbuild local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
alternative-macros.h riscv: alternative: fix typo in macro name 2021-06-10 20:35:05 -07:00
alternative.h riscv: sifive: Add SiFive alternative ports 2021-04-26 08:24:56 -07:00
asm-offsets.h
asm-prototypes.h riscv: add VMAP_STACK overflow detection 2021-07-06 12:11:38 -07:00
asm.h riscv: Introduce alternative mechanism to apply errata solution 2021-04-26 08:24:55 -07:00
atomic.h locking/atomic: riscv: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
barrier.h RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw 2020-07-17 09:28:35 -07:00
bitops.h RISC-V patches for v5.2-rc6 2019-06-17 10:34:03 -07:00
bug.h riscv: Add dump stack in show_regs 2021-01-14 15:09:11 -08:00
cache.h riscv: add nommu support 2019-11-17 15:17:39 -08:00
cacheflush.h mm: rename flush_icache_user_range to flush_icache_user_page 2020-06-08 11:05:58 -07:00
cacheinfo.h riscv: Add cache information in AUX vector 2020-09-15 18:46:08 -07:00
clint.h RISC-V: Resurrect the MMIO timer implementation for M-mode systems 2020-09-19 13:21:11 -07:00
clocksource.h riscv: use vDSO common flow to reduce the latency of the time-related functions 2020-06-10 19:47:16 -07:00
cmpxchg.h locking/atomic: riscv: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
cpu_ops.h RISC-V: Support cpu hotplug 2020-03-31 11:28:30 -07:00
csr.h riscv: Introduce alternative mechanism to apply errata solution 2021-04-26 08:24:55 -07:00
current.h RISC-V: Stop relying on GCC's register allocator's hueristics 2020-03-03 10:28:13 -08:00
delay.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
efi.h RISC-V: load initrd wherever it fits into memory 2021-07-21 22:58:17 -07:00
elf.h RISC-V: Add kdump support 2021-04-26 08:25:23 -07:00
errata_list.h riscv: sifive: Apply errata "cip-1200" patch 2021-04-26 08:24:58 -07:00
fence.h riscv/spinlock: Strengthen implementations with fences 2018-04-02 19:59:43 -07:00
fixmap.h RISC-V: Add early ioremap support 2020-10-02 14:31:03 -07:00
ftrace.h riscv: Workaround mcount name prior to clang-13 2021-04-26 08:25:01 -07:00
futex.h futex: arch_futex_atomic_op_inuser() calling conventions change 2020-03-27 23:58:51 -04:00
gdb_xml.h riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning 2020-07-09 20:12:28 -07:00
hugetlb.h mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags() 2020-06-03 20:09:46 -07:00
hwcap.h RISC-V: Add bitmap reprensenting ISA features common across CPUs 2020-05-04 14:08:59 -07:00
image.h RISC-V: Typo fixes in image header and documentation. 2019-12-19 09:32:45 -07:00
io.h RISC-V: Use asm-generic for {in,out}{bwlq} 2021-06-30 20:55:40 -07:00
irq.h riscv: irq: Fix no prototype warning 2021-03-09 20:46:00 -08:00
irq_work.h riscv: Support irq_work via self IPIs 2020-07-30 11:37:33 -07:00
irqflags.h riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
jump_label.h riscv: Add jump-label implementation 2020-07-30 11:37:43 -07:00
kasan.h riscv: Improve kasan definitions 2021-02-22 18:44:53 -08:00
kdebug.h riscv: Add KGDB support 2020-05-18 11:38:10 -07:00
kexec.h riscv: kexec: Fix W=1 build warnings 2021-05-22 22:05:30 -07:00
kfence.h riscv: Enable KFENCE for riscv64 2021-06-30 20:55:41 -07:00
kgdb.h riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning 2020-07-09 20:12:28 -07:00
kprobes.h riscv: kprobes: Remove redundant kprobe_step_ctx 2021-05-29 11:17:08 -07:00
linkage.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
mmio.h riscv: Use generic pgprot_* macros from <linux/pgtable.h> 2020-07-30 11:37:46 -07:00
mmiowb.h riscv: mmiowb: Fix implicit declaration of function 'smp_processor_id' 2020-05-13 17:11:46 -07:00
mmu.h RISC-V: Implement ASID allocator 2021-02-18 23:18:06 -08:00
mmu_context.h riscv: add ASID-based tlbflushing methods 2021-06-30 20:55:39 -07:00
mmzone.h riscv: Add numa support for riscv64 platform 2021-01-14 15:08:58 -08:00
module.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
module.lds.h kbuild: preprocess module linker script 2020-09-25 00:36:41 +09:00
numa.h riscv: Add numa support for riscv64 platform 2021-01-14 15:08:58 -08:00
page.h riscv: Get rid of CONFIG_PHYS_RAM_BASE in kernel physical address conversion 2021-08-06 22:41:28 -07:00
parse_asm.h riscv: Add SW single-step support for KDB 2020-05-18 11:38:12 -07:00
patch.h riscv: Remove the 'riscv_' prefix of function name 2020-05-18 11:38:13 -07:00
pci.h riscv: enable generic PCI resource mapping 2021-05-25 22:50:49 -07:00
perf_event.h riscv: perf: RISCV_BASE_PMU should be independent 2020-05-12 16:21:46 -07:00
pgalloc.h mm/thp: define default pmd_pgtable() 2021-07-01 11:06:03 -07:00
pgtable-32.h arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed 2020-11-16 16:57:18 +01:00
pgtable-64.h RISC-V Patches for the 5.14 Merge Window, Part 1 2021-07-09 10:36:29 -07:00
pgtable-bits.h riscv: mm: add _PAGE_LEAF macro 2021-05-22 10:19:29 -07:00
pgtable.h RISC-V Patches for the 5.14 Merge Window, Part 1 2021-07-09 10:36:29 -07:00
probes.h riscv: Add kprobes supported 2021-01-14 15:09:06 -08:00
processor.h riscv: process: Fix no prototype for arch_dup_task_struct 2021-03-09 20:46:07 -08:00
ptdump.h riscv: support DEBUG_WX 2020-06-03 20:09:50 -07:00
ptrace.h riscv: ptrace: add argn syntax 2021-07-05 20:53:09 -07:00
sbi.h RISC-V Patches for the 5.13 Merge Window, Part 1 2021-05-06 09:24:18 -07:00
seccomp.h riscv: Enable seccomp architecture tracking 2020-11-20 11:16:35 -08:00
sections.h riscv: Map the kernel with correct permissions the first time 2021-06-30 21:18:58 -07:00
set_memory.h riscv: Map the kernel with correct permissions the first time 2021-06-30 21:18:58 -07:00
smp.h riscv: Constify sbi_ipi_ops 2021-04-26 08:25:10 -07:00
soc.h riscv: Fix builtin DTB handling 2021-01-07 19:00:50 -08:00
sparsemem.h riscv: clean up the macro format in each header file 2019-11-12 12:04:52 -08:00
spinlock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
spinlock_types.h riscv: clean up the macro format in each header file 2019-11-12 12:04:52 -08:00
stackprotector.h riscv: Enable per-task stack canaries 2021-01-14 15:09:10 -08:00
stacktrace.h riscv: Add dump stack in show_regs 2021-01-14 15:09:11 -08:00
string.h riscv: Add ARCH_HAS_FORTIFY_SOURCE 2021-03-09 18:18:31 -08:00
switch_to.h riscv: Turn has_fpu into a static key if FPU=y 2021-05-25 22:56:57 -07:00
syscall.h riscv: Constify sys_call_table 2021-04-26 08:25:09 -07:00
thread_info.h riscv: add VMAP_STACK overflow detection 2021-07-06 12:11:38 -07:00
timex.h riscv: time: Fix no prototype for time_init 2021-03-09 20:46:03 -08:00
tlb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
tlbflush.h riscv: fix build error when CONFIG_SMP is disabled 2021-06-08 17:05:03 -07:00
uaccess.h Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-05-02 09:14:01 -07:00
unistd.h arch, mm: wire up memfd_secret system call where relevant 2021-07-08 11:48:21 -07:00
uprobes.h riscv: Add uprobes supported 2021-01-14 15:09:08 -08:00
vdso.h riscv: Fixup CONFIG_GENERIC_TIME_VSYSCALL 2021-01-12 20:34:44 -08:00
vendorid_list.h riscv: Introduce alternative mechanism to apply errata solution 2021-04-26 08:24:55 -07:00
vermagic.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
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
word-at-a-time.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00