[PATCH 3/3] powerpc/vdso: Merge vdso64 and vdso32 into a single directory

Christophe Leroy
2021-12-21T17:49:54Z

merge vdso64 into vdso32 and rename it vdso.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/Makefile | 4 +-
arch/powerpc/kernel/Makefile | 6 +-
.../kernel/{vdso64 => vdso}/.gitignore | 2 +
arch/powerpc/kernel/{vdso32 => vdso}/Makefile | 35 +++++++++
.../kernel/{vdso32 => vdso}/cacheflush.S | 0
.../kernel/{vdso32 => vdso}/datapage.S | 0
.../{vdso32 => vdso}/gen_vdso32_offsets.sh | 0
.../gen_vdso64_offsets.sh} | 0
arch/powerpc/kernel/{vdso32 => vdso}/getcpu.S | 0
.../kernel/{vdso32 => vdso}/gettimeofday.S | 0
arch/powerpc/kernel/{vdso32 => vdso}/note.S | 0
.../kernel/{vdso32 => vdso}/sigtramp32.S | 0
.../{vdso64/sigtramp.S => vdso/sigtramp64.S} | 0
.../kernel/{vdso32 => vdso}/vdso32.lds.S | 0
.../kernel/{vdso64 => vdso}/vdso64.lds.S | 0
.../kernel/{vdso32 => vdso}/vgettimeofday.c | 0
arch/powerpc/kernel/vdso32/.gitignore | 3 -
arch/powerpc/kernel/vdso32_wrapper.S | 2 +-
arch/powerpc/kernel/vdso64/Makefile | 56 --------------
arch/powerpc/kernel/vdso64/cacheflush.S | 75 -------------------
arch/powerpc/kernel/vdso64/datapage.S | 59 ---------------
arch/powerpc/kernel/vdso64/getcpu.S | 33 --------
arch/powerpc/kernel/vdso64/gettimeofday.S | 58 --------------
arch/powerpc/kernel/vdso64/note.S | 1 -
arch/powerpc/kernel/vdso64/vgettimeofday.c | 29 -------
arch/powerpc/kernel/vdso64_wrapper.S | 2 +-
26 files changed, 44 insertions(+), 321 deletions(-)
rename arch/powerpc/kernel/{vdso64 => vdso}/.gitignore (72%)
rename arch/powerpc/kernel/{vdso32 => vdso}/Makefile (56%)
rename arch/powerpc/kernel/{vdso32 => vdso}/cacheflush.S (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/datapage.S (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/gen_vdso32_offsets.sh (100%)
rename arch/powerpc/kernel/{vdso64/gen_vdso_offsets.sh => vdso/gen_vdso64_offsets.sh} (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/getcpu.S (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/gettimeofday.S (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/note.S (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/sigtramp32.S (100%)
rename arch/powerpc/kernel/{vdso64/sigtramp.S => vdso/sigtramp64.S} (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/vdso32.lds.S (100%)
rename arch/powerpc/kernel/{vdso64 => vdso}/vdso64.lds.S (100%)
rename arch/powerpc/kernel/{vdso32 => vdso}/vgettimeofday.c (100%)
delete mode 100644 arch/powerpc/kernel/vdso32/.gitignore
delete mode 100644 arch/powerpc/kernel/vdso64/Makefile
delete mode 100644 arch/powerpc/kernel/vdso64/cacheflush.S
delete mode 100644 arch/powerpc/kernel/vdso64/datapage.S
delete mode 100644 arch/powerpc/kernel/vdso64/getcpu.S
delete mode 100644 arch/powerpc/kernel/vdso64/gettimeofday.S
delete mode 100644 arch/powerpc/kernel/vdso64/note.S
delete mode 100644 arch/powerpc/kernel/vdso64/vgettimeofday.c

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index e02568f17334..e668612812d6 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -419,9 +419,9 @@ ifeq ($(KBUILD_EXTMOD),)
prepare: vdso_prepare
vdso_prepare: prepare0
$(if $(CONFIG_VDSO32),$(Q)$(MAKE) \
- $(build)=arch/powerpc/kernel/vdso32 include/generated/vdso32-offsets.h)
+ $(build)=arch/powerpc/kernel/vdso include/generated/vdso32-offsets.h)
$(if $(CONFIG_PPC64),$(Q)$(MAKE) \
- $(build)=arch/powerpc/kernel/vdso64 include/generated/vdso64-offsets.h)
+ $(build)=arch/powerpc/kernel/vdso include/generated/vdso64-offsets.h)
endif

archprepare: checkbin
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 5fa68c2ef1f8..c626c55e35fc 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -194,8 +194,8 @@ targets += prom_init_check
clean-files := vmlinux.lds

# Force dependency (incbin is bad)
-$(obj)/vdso32_wrapper.o : $(obj)/vdso32/vdso32.so.dbg
-$(obj)/vdso64_wrapper.o : $(obj)/vdso64/vdso64.so.dbg
+$(obj)/vdso32_wrapper.o : $(obj)/vdso/vdso32.so.dbg
+$(obj)/vdso64_wrapper.o : $(obj)/vdso/vdso64.so.dbg

# for cleaning
-subdir- += vdso32 vdso64
+subdir- += vdso
diff --git a/arch/powerpc/kernel/vdso64/.gitignore b/arch/powerpc/kernel/vdso/.gitignore
similarity index 72%
rename from arch/powerpc/kernel/vdso64/.gitignore
rename to arch/powerpc/kernel/vdso/.gitignore
index 84151a7ba31d..dd9bdd67758b 100644
--- a/arch/powerpc/kernel/vdso64/.gitignore
+++ b/arch/powerpc/kernel/vdso/.gitignore
@@ -1,3 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
+vdso32.lds
+vdso32.so.dbg
vdso64.lds
vdso64.so.dbg
diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso/Makefile
similarity index 56%
rename from arch/powerpc/kernel/vdso32/Makefile
rename to arch/powerpc/kernel/vdso/Makefile
index 7d7b38d90ca5..954974287ee7 100644
--- a/arch/powerpc/kernel/vdso32/Makefile
+++ b/arch/powerpc/kernel/vdso/Makefile
@@ -6,6 +6,7 @@ ARCH_REL_TYPE_ABS := R_PPC_JUMP_SLOT|R_PPC_GLOB_DAT|R_PPC_ADDR32|R_PPC_ADDR24|R_
include $(srctree)/lib/vdso/Makefile

obj-vdso32 = sigtramp32-32.o gettimeofday-32.o datapage-32.o cacheflush-32.o note-32.o getcpu-32.o
+obj-vdso64 = sigtramp64-64.o gettimeofday-64.o datapage-64.o cacheflush-64.o note-64.o getcpu-64.o

ifneq ($(c-gettimeofday-y),)
CFLAGS_vgettimeofday-32.o += -include $(c-gettimeofday-y)
@@ -15,6 +16,17 @@ ifneq ($(c-gettimeofday-y),)
CFLAGS_vgettimeofday-32.o += -ffreestanding -fasynchronous-unwind-tables
CFLAGS_REMOVE_vgettimeofday-32.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_vgettimeofday-32.o += -mcmodel=medium -mabi=elfv1 -mabi=elfv2 -mcall-aixdesc
+ CFLAGS_vgettimeofday-64.o += -include $(c-gettimeofday-y)
+ CFLAGS_vgettimeofday-64.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+ CFLAGS_vgettimeofday-64.o += $(call cc-option, -fno-stack-protector)
+ CFLAGS_vgettimeofday-64.o += -DDISABLE_BRANCH_PROFILING
+ CFLAGS_vgettimeofday-64.o += -ffreestanding -fasynchronous-unwind-tables
+ CFLAGS_REMOVE_vgettimeofday-64.o = $(CC_FLAGS_FTRACE)
+# Go prior to 1.16.x assumes r30 is not clobbered by any VDSO code. That used to be true
+# by accident when the VDSO was hand-written asm code, but may not be now that the VDSO is
+# compiler generated. To avoid breaking Go tell GCC not to use r30. Impact on code
+# generation is minimal, it will just use r29 instead.
+ CFLAGS_vgettimeofday-64.o += $(call cc-option, -ffixed-r30)
endif

# Build rules
@@ -27,6 +39,8 @@ endif

targets := $(obj-vdso32) vdso32.so.dbg vgettimeofday-32.o
obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
+targets += $(obj-vdso64) vdso64.so.dbg vgettimeofday-64.o
+obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))

GCOV_PROFILE := n
KCOV_INSTRUMENT := n
@@ -38,26 +52,42 @@ ccflags-y := -shared -fno-common -fno-builtin -nostdlib -Wl,--hash-style=both
CC32FLAGS := -Wl,-soname=linux-vdso32.so.1 -m32
AS32FLAGS := -D__VDSO32__ -s

+CC64FLAGS := -Wl,-soname=linux-vdso64.so.1
+AS64FLAGS := -D__VDSO64__ -s
+
targets += vdso32.lds
CPPFLAGS_vdso32.lds += -P -C -Upowerpc
+targets += vdso64.lds
+CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)

# link rule for the .so file, .lds has to be first
$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) $(obj)/vgettimeofday-32.o FORCE
$(call if_changed,vdso32ld_and_check)
+$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) $(obj)/vgettimeofday-64.o FORCE
+ $(call if_changed,vdso64ld_and_check)

# assembly rules for the .S files
$(obj-vdso32): %-32.o: %.S FORCE
$(call if_changed_dep,vdso32as)
$(obj)/vgettimeofday-32.o: %-32.o: %.c FORCE
$(call if_changed_dep,vdso32cc)
+$(obj-vdso64): %-64.o: %.S FORCE
+ $(call if_changed_dep,vdso64as)
+$(obj)/vgettimeofday-64.o: %-64.o: %.c FORCE
+ $(call if_changed_dep,cc_o_c)

# Generate VDSO offsets using helper script
gen-vdso32sym := $(srctree)/$(src)/gen_vdso32_offsets.sh
quiet_cmd_vdso32sym = VDSO32SYM $@
cmd_vdso32sym = $(NM) $< | $(gen-vdso32sym) | LC_ALL=C sort > $@
+gen-vdso64sym := $(srctree)/$(src)/gen_vdso64_offsets.sh
+quiet_cmd_vdso64sym = VDSO64SYM $@
+ cmd_vdso64sym = $(NM) $< | $(gen-vdso64sym) | LC_ALL=C sort > $@

include/generated/vdso32-offsets.h: $(obj)/vdso32.so.dbg FORCE
$(call if_changed,vdso32sym)
+include/generated/vdso64-offsets.h: $(obj)/vdso64.so.dbg FORCE
+ $(call if_changed,vdso64sym)

# actual build commands
quiet_cmd_vdso32ld_and_check = VDSO32L $@
@@ -66,3 +96,8 @@ quiet_cmd_vdso32as = VDSO32A $@
cmd_vdso32as = $(VDSOCC) $(a_flags) $(CC32FLAGS) $(AS32FLAGS) -c -o $@ $<
quiet_cmd_vdso32cc = VDSO32C $@
cmd_vdso32cc = $(VDSOCC) $(c_flags) $(CC32FLAGS) -c -o $@ $<
+
+quiet_cmd_vdso64ld_and_check = VDSO64L $@
+ cmd_vdso64ld_and_check = $(VDSOCC) $(c_flags) $(CC64FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) ; $(cmd_vdso_check)
+quiet_cmd_vdso64as = VDSO64A $@
+ cmd_vdso64as = $(VDSOCC) $(a_flags) $(CC64FLAGS) $(AS64FLAGS) -c -o $@ $<
diff --git a/arch/powerpc/kernel/vdso32/cacheflush.S b/arch/powerpc/kernel/vdso/cacheflush.S
similarity index 100%
rename from arch/powerpc/kernel/vdso32/cacheflush.S
rename to arch/powerpc/kernel/vdso/cacheflush.S
diff --git a/arch/powerpc/kernel/vdso32/datapage.S b/arch/powerpc/kernel/vdso/datapage.S
similarity index 100%
rename from arch/powerpc/kernel/vdso32/datapage.S
rename to arch/powerpc/kernel/vdso/datapage.S
diff --git a/arch/powerpc/kernel/vdso32/gen_vdso32_offsets.sh b/arch/powerpc/kernel/vdso/gen_vdso32_offsets.sh
similarity index 100%
rename from arch/powerpc/kernel/vdso32/gen_vdso32_offsets.sh
rename to arch/powerpc/kernel/vdso/gen_vdso32_offsets.sh
diff --git a/arch/powerpc/kernel/vdso64/gen_vdso_offsets.sh b/arch/powerpc/kernel/vdso/gen_vdso64_offsets.sh
similarity index 100%
rename from arch/powerpc/kernel/vdso64/gen_vdso_offsets.sh
rename to arch/powerpc/kernel/vdso/gen_vdso64_offsets.sh
diff --git a/arch/powerpc/kernel/vdso32/getcpu.S b/arch/powerpc/kernel/vdso/getcpu.S
similarity index 100%
rename from arch/powerpc/kernel/vdso32/getcpu.S
rename to arch/powerpc/kernel/vdso/getcpu.S
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso/gettimeofday.S
similarity index 100%
rename from arch/powerpc/kernel/vdso32/gettimeofday.S
rename to arch/powerpc/kernel/vdso/gettimeofday.S
diff --git a/arch/powerpc/kernel/vdso32/note.S b/arch/powerpc/kernel/vdso/note.S
similarity index 100%
rename from arch/powerpc/kernel/vdso32/note.S
rename to arch/powerpc/kernel/vdso/note.S
diff --git a/arch/powerpc/kernel/vdso32/sigtramp32.S b/arch/powerpc/kernel/vdso/sigtramp32.S
similarity index 100%
rename from arch/powerpc/kernel/vdso32/sigtramp32.S
rename to arch/powerpc/kernel/vdso/sigtramp32.S
diff --git a/arch/powerpc/kernel/vdso64/sigtramp.S b/arch/powerpc/kernel/vdso/sigtramp64.S
similarity index 100%
rename from arch/powerpc/kernel/vdso64/sigtramp.S
rename to arch/powerpc/kernel/vdso/sigtramp64.S
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso/vdso32.lds.S
similarity index 100%
rename from arch/powerpc/kernel/vdso32/vdso32.lds.S
rename to arch/powerpc/kernel/vdso/vdso32.lds.S
diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso/vdso64.lds.S
similarity index 100%
rename from arch/powerpc/kernel/vdso64/vdso64.lds.S
rename to arch/powerpc/kernel/vdso/vdso64.lds.S
diff --git a/arch/powerpc/kernel/vdso32/vgettimeofday.c b/arch/powerpc/kernel/vdso/vgettimeofday.c
similarity index 100%
rename from arch/powerpc/kernel/vdso32/vgettimeofday.c
rename to arch/powerpc/kernel/vdso/vgettimeofday.c
diff --git a/arch/powerpc/kernel/vdso32/.gitignore b/arch/powerpc/kernel/vdso32/.gitignore
deleted file mode 100644
index 824b863ec6bd..000000000000
--- a/arch/powerpc/kernel/vdso32/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-vdso32.lds
-vdso32.so.dbg
diff --git a/arch/powerpc/kernel/vdso32_wrapper.S b/arch/powerpc/kernel/vdso32_wrapper.S
index 3f5ef035b0a9..10f92f265d51 100644
--- a/arch/powerpc/kernel/vdso32_wrapper.S
+++ b/arch/powerpc/kernel/vdso32_wrapper.S
@@ -7,7 +7,7 @@
.globl vdso32_start, vdso32_end
.balign PAGE_SIZE
vdso32_start:
- .incbin "arch/powerpc/kernel/vdso32/vdso32.so.dbg"
+ .incbin "arch/powerpc/kernel/vdso/vdso32.so.dbg"
.balign PAGE_SIZE
vdso32_end:

diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile
deleted file mode 100644
index 3c5baaa6f1e7..000000000000
--- a/arch/powerpc/kernel/vdso64/Makefile
+++ /dev/null
@@ -1,56 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-# List of files in the vdso, has to be asm only for now
-
-ARCH_REL_TYPE_ABS := R_PPC_JUMP_SLOT|R_PPC_GLOB_DAT|R_PPC_ADDR32|R_PPC_ADDR24|R_PPC_ADDR16|R_PPC_ADDR16_LO|R_PPC_ADDR16_HI|R_PPC_ADDR16_HA|R_PPC_ADDR14|R_PPC_ADDR14_BRTAKEN|R_PPC_ADDR14_BRNTAKEN|R_PPC_REL24
-include $(srctree)/lib/vdso/Makefile
-
-obj-vdso64 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o getcpu.o
-
-ifneq ($(c-gettimeofday-y),)
- CFLAGS_vgettimeofday.o += -include $(c-gettimeofday-y)
- CFLAGS_vgettimeofday.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
- CFLAGS_vgettimeofday.o += $(call cc-option, -fno-stack-protector)
- CFLAGS_vgettimeofday.o += -DDISABLE_BRANCH_PROFILING
- CFLAGS_vgettimeofday.o += -ffreestanding -fasynchronous-unwind-tables
- CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE)
-endif
-
-# Build rules
-
-targets := $(obj-vdso64) vdso64.so.dbg vgettimeofday.o
-obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
-
-GCOV_PROFILE := n
-KCOV_INSTRUMENT := n
-UBSAN_SANITIZE := n
-KASAN_SANITIZE := n
-
-ccflags-y := -shared -fno-common -fno-builtin -nostdlib \
- -Wl,-soname=linux-vdso64.so.1 -Wl,--hash-style=both
-
-# Go prior to 1.16.x assumes r30 is not clobbered by any VDSO code. That used to be true
-# by accident when the VDSO was hand-written asm code, but may not be now that the VDSO is
-# compiler generated. To avoid breaking Go tell GCC not to use r30. Impact on code
-# generation is minimal, it will just use r29 instead.
-ccflags-y += $(call cc-option, -ffixed-r30)
-
-asflags-y := -D__VDSO64__ -s
-
-targets += vdso64.lds
-CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
-
-# link rule for the .so file, .lds has to be first
-$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) $(obj)/vgettimeofday.o FORCE
- $(call if_changed,vdso64ld_and_check)
-
-# Generate VDSO offsets using helper script
-gen-vdsosym := $(srctree)/$(src)/gen_vdso_offsets.sh
-quiet_cmd_vdsosym = VDSOSYM $@
- cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
-
-include/generated/vdso64-offsets.h: $(obj)/vdso64.so.dbg FORCE
- $(call if_changed,vdsosym)
-
-# actual build commands
-quiet_cmd_vdso64ld_and_check = VDSO64L $@
- cmd_vdso64ld_and_check = $(CC) $(c_flags) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^); $(cmd_vdso_check)
diff --git a/arch/powerpc/kernel/vdso64/cacheflush.S b/arch/powerpc/kernel/vdso64/cacheflush.S
deleted file mode 100644
index 76c3c8cf8ece..000000000000
--- a/arch/powerpc/kernel/vdso64/cacheflush.S
+++ /dev/null
@@ -1,75 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * vDSO provided cache flush routines
- *
- * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org),
- * IBM Corp.
- */
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-#include <asm/vdso.h>
-#include <asm/vdso_datapage.h>
-#include <asm/asm-offsets.h>
-
- .text
-
-/*
- * Default "generic" version of __kernel_sync_dicache.
- *
- * void __kernel_sync_dicache(unsigned long start, unsigned long end)
- *
- * Flushes the data cache & invalidate the instruction cache for the
- * provided range [start, end[
- */
-V_FUNCTION_BEGIN(__kernel_sync_dicache)
- .cfi_startproc
-BEGIN_FTR_SECTION
- b 3f
-END_FTR_SECTION_IFSET(CPU_FTR_COHERENT_ICACHE)
- mflr r12
- .cfi_register lr,r12
- get_datapage r10
- mtlr r12
- .cfi_restore lr
-
- lwz r7,CFG_DCACHE_BLOCKSZ(r10)
- addi r5,r7,-1
- andc r6,r3,r5 /* round low to line bdy */
- subf r8,r6,r4 /* compute length */
- add r8,r8,r5 /* ensure we get enough */
- lwz r9,CFG_DCACHE_LOGBLOCKSZ(r10)
- srd. r8,r8,r9 /* compute line count */
- crclr cr0*4+so
- beqlr /* nothing to do? */
- mtctr r8
-1: dcbst 0,r6
- add r6,r6,r7
- bdnz 1b
- sync
-
-/* Now invalidate the instruction cache */
-
- lwz r7,CFG_ICACHE_BLOCKSZ(r10)
- addi r5,r7,-1
- andc r6,r3,r5 /* round low to line bdy */
- subf r8,r6,r4 /* compute length */
- add r8,r8,r5
- lwz r9,CFG_ICACHE_LOGBLOCKSZ(r10)
- srd. r8,r8,r9 /* compute line count */
- crclr cr0*4+so
- beqlr /* nothing to do? */
- mtctr r8
-2: icbi 0,r6
- add r6,r6,r7
- bdnz 2b
- isync
- li r3,0
- blr
-3:
- crclr cr0*4+so
- sync
- isync
- li r3,0
- blr
- .cfi_endproc
-V_FUNCTION_END(__kernel_sync_dicache)
diff --git a/arch/powerpc/kernel/vdso64/datapage.S b/arch/powerpc/kernel/vdso64/datapage.S
deleted file mode 100644
index 00760dc69d68..000000000000
--- a/arch/powerpc/kernel/vdso64/datapage.S
+++ /dev/null
@@ -1,59 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Access to the shared data page by the vDSO & syscall map
- *
- * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org), IBM Corp.
- */
-
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/unistd.h>
-#include <asm/vdso.h>
-#include <asm/vdso_datapage.h>
-
- .text
-
-/*
- * void *__kernel_get_syscall_map(unsigned int *syscall_count) ;
- *
- * returns a pointer to the syscall map. the map is agnostic to the
- * size of "long", unlike kernel bitops, it stores bits from top to
- * bottom so that memory actually contains a linear bitmap
- * check for syscall N by testing bit (0x80000000 >> (N & 0x1f)) of
- * 32 bits int at N >> 5.
- */
-V_FUNCTION_BEGIN(__kernel_get_syscall_map)
- .cfi_startproc
- mflr r12
- .cfi_register lr,r12
- mr r4,r3
- get_datapage r3
- mtlr r12
- addi r3,r3,CFG_SYSCALL_MAP64
- cmpldi cr0,r4,0
- crclr cr0*4+so
- beqlr
- li r0,NR_syscalls
- stw r0,0(r4)
- blr
- .cfi_endproc
-V_FUNCTION_END(__kernel_get_syscall_map)
-
-
-/*
- * void unsigned long __kernel_get_tbfreq(void);
- *
- * returns the timebase frequency in HZ
- */
-V_FUNCTION_BEGIN(__kernel_get_tbfreq)
- .cfi_startproc
- mflr r12
- .cfi_register lr,r12
- get_datapage r3
- ld r3,CFG_TB_TICKS_PER_SEC(r3)
- mtlr r12
- crclr cr0*4+so
- blr
- .cfi_endproc
-V_FUNCTION_END(__kernel_get_tbfreq)
diff --git a/arch/powerpc/kernel/vdso64/getcpu.S b/arch/powerpc/kernel/vdso64/getcpu.S
deleted file mode 100644
index 12bbf236cdc4..000000000000
--- a/arch/powerpc/kernel/vdso64/getcpu.S
+++ /dev/null
@@ -1,33 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- *
- * Copyright (C) IBM Corporation, 2012
- *
- * Author: Anton Blanchard <anton@au.ibm.com>
- */
-#include <asm/ppc_asm.h>
-#include <asm/vdso.h>
-
- .text
-/*
- * Exact prototype of getcpu
- *
- * int __kernel_getcpu(unsigned *cpu, unsigned *node);
- *
- */
-V_FUNCTION_BEGIN(__kernel_getcpu)
- .cfi_startproc
- mfspr r5,SPRN_SPRG_VDSO_READ
- cmpdi cr0,r3,0
- cmpdi cr1,r4,0
- clrlwi r6,r5,16
- rlwinm r7,r5,16,31-15,31-0
- beq cr0,1f
- stw r6,0(r3)
-1: beq cr1,2f
- stw r7,0(r4)
-2: crclr cr0*4+so
- li r3,0 /* always success */
- blr
- .cfi_endproc
-V_FUNCTION_END(__kernel_getcpu)
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
deleted file mode 100644
index d7a7bfb51081..000000000000
--- a/arch/powerpc/kernel/vdso64/gettimeofday.S
+++ /dev/null
@@ -1,58 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Userland implementation of gettimeofday() for 64 bits processes in a
- * ppc64 kernel for use in the vDSO
- *
- * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org),
- * IBM Corp.
- */
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-#include <asm/vdso.h>
-#include <asm/vdso_datapage.h>
-#include <asm/asm-offsets.h>
-#include <asm/unistd.h>
-#include <asm/vdso/gettimeofday.h>
-
- .text
-/*
- * Exact prototype of gettimeofday
- *
- * int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz);
- *
- */
-V_FUNCTION_BEGIN(__kernel_gettimeofday)
- cvdso_call __c_kernel_gettimeofday
-V_FUNCTION_END(__kernel_gettimeofday)
-
-
-/*
- * Exact prototype of clock_gettime()
- *
- * int __kernel_clock_gettime(clockid_t clock_id, struct timespec *tp);
- *
- */
-V_FUNCTION_BEGIN(__kernel_clock_gettime)
- cvdso_call __c_kernel_clock_gettime
-V_FUNCTION_END(__kernel_clock_gettime)
-
-
-/*
- * Exact prototype of clock_getres()
- *
- * int __kernel_clock_getres(clockid_t clock_id, struct timespec *res);
- *
- */
-V_FUNCTION_BEGIN(__kernel_clock_getres)
- cvdso_call __c_kernel_clock_getres
-V_FUNCTION_END(__kernel_clock_getres)
-
-/*
- * Exact prototype of time()
- *
- * time_t time(time *t);
- *
- */
-V_FUNCTION_BEGIN(__kernel_time)
- cvdso_call_time __c_kernel_time
-V_FUNCTION_END(__kernel_time)
diff --git a/arch/powerpc/kernel/vdso64/note.S b/arch/powerpc/kernel/vdso64/note.S
deleted file mode 100644
index dc2a509f7e8a..000000000000
--- a/arch/powerpc/kernel/vdso64/note.S
+++ /dev/null
@@ -1 +0,0 @@
-#include "../vdso32/note.S"
diff --git a/arch/powerpc/kernel/vdso64/vgettimeofday.c b/arch/powerpc/kernel/vdso64/vgettimeofday.c
deleted file mode 100644
index 5b5500058344..000000000000
--- a/arch/powerpc/kernel/vdso64/vgettimeofday.c
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Powerpc userspace implementations of gettimeofday() and similar.
- */
-#include <linux/time.h>
-#include <linux/types.h>
-
-int __c_kernel_clock_gettime(clockid_t clock, struct __kernel_timespec *ts,
- const struct vdso_data *vd)
-{
- return __cvdso_clock_gettime_data(vd, clock, ts);
-}
-
-int __c_kernel_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz,
- const struct vdso_data *vd)
-{
- return __cvdso_gettimeofday_data(vd, tv, tz);
-}
-
-int __c_kernel_clock_getres(clockid_t clock_id, struct __kernel_timespec *res,
- const struct vdso_data *vd)
-{
- return __cvdso_clock_getres_data(vd, clock_id, res);
-}
-
-__kernel_old_time_t __c_kernel_time(__kernel_old_time_t *time, const struct vdso_data *vd)
-{
- return __cvdso_time_data(vd, time);
-}
diff --git a/arch/powerpc/kernel/vdso64_wrapper.S b/arch/powerpc/kernel/vdso64_wrapper.S
index 1d56d81fe3b3..839d1a61411d 100644
--- a/arch/powerpc/kernel/vdso64_wrapper.S
+++ b/arch/powerpc/kernel/vdso64_wrapper.S
@@ -7,7 +7,7 @@
.globl vdso64_start, vdso64_end
.balign PAGE_SIZE
vdso64_start:
- .incbin "arch/powerpc/kernel/vdso64/vdso64.so.dbg"
+ .incbin "arch/powerpc/kernel/vdso/vdso64.so.dbg"
.balign PAGE_SIZE
vdso64_end:

--
2.33.1