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authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-23 20:56:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-23 20:56:17 -0700
commitfdd8f6585cef1c8c0fac745c1baa687301d55a90 (patch)
treeacdc3bc26e77943bb13be2f22c6bfb8044dbd6d2
parent17a05c8f1e18b3ef846d0032a19002568282ac29 (diff)
parent30b5e6ef4a32ea4985b99200e06d6660a69f9246 (diff)
downloadnf-fdd8f6585cef1c8c0fac745c1baa687301d55a90.tar.gz
Merge tag 'm68k-for-v5.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven: - Introduce virtual m68k machine based on Android Goldfish devices - defconfig updates - Minor fixes and improvements * tag 'm68k-for-v5.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: atari: Make Atari ROM port I/O write macros return void m68k: math-emu: Fix dependencies of math emulation support m68k: math-emu: Fix typos in comments m68k: Wire up syscall_trace_enter/leave for m68k m68k: defconfig: Update defconfigs for v5.18-rc1 m68k: Introduce a virtual m68k machine clocksource/drivers: Add a goldfish-timer clocksource rtc: goldfish: Use gf_ioread32()/gf_iowrite32() tty: goldfish: Introduce gf_ioread32()/gf_iowrite32()
-rw-r--r--arch/m68k/Kbuild1
-rw-r--r--arch/m68k/Kconfig.cpu2
-rw-r--r--arch/m68k/Kconfig.machine17
-rw-r--r--arch/m68k/configs/amiga_defconfig5
-rw-r--r--arch/m68k/configs/apollo_defconfig5
-rw-r--r--arch/m68k/configs/atari_defconfig5
-rw-r--r--arch/m68k/configs/bvme6000_defconfig5
-rw-r--r--arch/m68k/configs/hp300_defconfig5
-rw-r--r--arch/m68k/configs/mac_defconfig5
-rw-r--r--arch/m68k/configs/multi_defconfig5
-rw-r--r--arch/m68k/configs/mvme147_defconfig5
-rw-r--r--arch/m68k/configs/mvme16x_defconfig5
-rw-r--r--arch/m68k/configs/q40_defconfig5
-rw-r--r--arch/m68k/configs/sun3_defconfig5
-rw-r--r--arch/m68k/configs/sun3x_defconfig5
-rw-r--r--arch/m68k/configs/virt_defconfig68
-rw-r--r--arch/m68k/include/asm/config.h2
-rw-r--r--arch/m68k/include/asm/io.h3
-rw-r--r--arch/m68k/include/asm/irq.h3
-rw-r--r--arch/m68k/include/asm/pgtable_mm.h7
-rw-r--r--arch/m68k/include/asm/raw_io.h6
-rw-r--r--arch/m68k/include/asm/setup.h44
-rw-r--r--arch/m68k/include/asm/virt.h25
-rw-r--r--arch/m68k/include/uapi/asm/bootinfo-virt.h18
-rw-r--r--arch/m68k/include/uapi/asm/bootinfo.h1
-rw-r--r--arch/m68k/kernel/Makefile1
-rw-r--r--arch/m68k/kernel/entry.S4
-rw-r--r--arch/m68k/kernel/head.S31
-rw-r--r--arch/m68k/kernel/ptrace.c7
-rw-r--r--arch/m68k/kernel/setup_mm.c7
-rw-r--r--arch/m68k/math-emu/fp_arith.c2
-rw-r--r--arch/m68k/mm/kmap.c21
-rw-r--r--arch/m68k/virt/Makefile6
-rw-r--r--arch/m68k/virt/config.c130
-rw-r--r--arch/m68k/virt/ints.c155
-rw-r--r--arch/m68k/virt/platform.c72
-rw-r--r--drivers/clocksource/Kconfig7
-rw-r--r--drivers/clocksource/Makefile1
-rw-r--r--drivers/clocksource/timer-goldfish.c153
-rw-r--r--drivers/rtc/rtc-goldfish.c44
-rw-r--r--drivers/tty/goldfish.c20
-rw-r--r--include/clocksource/timer-goldfish.h31
-rw-r--r--include/linux/goldfish.h15
43 files changed, 844 insertions, 120 deletions
diff --git a/arch/m68k/Kbuild b/arch/m68k/Kbuild
index 18abb35c26a153..7762af9f6defec 100644
--- a/arch/m68k/Kbuild
+++ b/arch/m68k/Kbuild
@@ -17,3 +17,4 @@ obj-$(CONFIG_M68060) += ifpsp060/
obj-$(CONFIG_M68KFPU_EMU) += math-emu/
obj-$(CONFIG_M68000) += 68000/
obj-$(CONFIG_COLDFIRE) += coldfire/
+obj-$(CONFIG_VIRT) += virt/
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 16ea9a67723c09..3d5da25c73b5af 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -327,7 +327,7 @@ comment "Processor Specific Options"
config M68KFPU_EMU
bool "Math emulation support"
- depends on MMU
+ depends on M68KCLASSIC && FPU
help
At some point in the future, this will cause floating-point math
instructions to be emulated by the kernel on machines that lack a
diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index eeab4f3e6c197d..188a8f8a0104ae 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -149,6 +149,23 @@ config SUN3
If you don't want to compile a kernel exclusively for a Sun 3, say N.
+config VIRT
+ bool "Virtual M68k Machine support"
+ depends on MMU
+ select GENERIC_CLOCKEVENTS
+ select GOLDFISH
+ select GOLDFISH_TIMER
+ select GOLDFISH_TTY
+ select M68040
+ select MMU_MOTOROLA if MMU
+ select RTC_CLASS
+ select RTC_DRV_GOLDFISH
+ select TTY
+ select VIRTIO_MMIO
+ help
+ This options enable a pure virtual machine based on m68k,
+ VIRTIO MMIO devices and GOLDFISH interfaces (TTY, RTC, PIC)
+
config PILOT
bool
diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig
index 114aaa3f955a38..c181030218bf29 100644
--- a/arch/m68k/configs/amiga_defconfig
+++ b/arch/m68k/configs/amiga_defconfig
@@ -42,7 +42,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -581,6 +580,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -613,7 +613,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
CONFIG_GLOB_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
@@ -638,7 +637,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -659,6 +657,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig
index 30b9d932b930bc..40755648fb6ce7 100644
--- a/arch/m68k/configs/apollo_defconfig
+++ b/arch/m68k/configs/apollo_defconfig
@@ -38,7 +38,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -538,6 +537,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -570,7 +570,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
@@ -594,7 +593,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -615,6 +613,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig
index 51ff3180e69d60..be0d9155fc5b8a 100644
--- a/arch/m68k/configs/atari_defconfig
+++ b/arch/m68k/configs/atari_defconfig
@@ -45,7 +45,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -558,6 +557,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -590,7 +590,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
CONFIG_GLOB_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
@@ -615,7 +614,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -636,6 +634,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig
index 7d95ca4366e4d3..9af0e2d0d153be 100644
--- a/arch/m68k/configs/bvme6000_defconfig
+++ b/arch/m68k/configs/bvme6000_defconfig
@@ -35,7 +35,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -530,6 +529,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -562,7 +562,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
@@ -586,7 +585,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -607,6 +605,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig
index e306e381360719..49341d66feb6a6 100644
--- a/arch/m68k/configs/hp300_defconfig
+++ b/arch/m68k/configs/hp300_defconfig
@@ -37,7 +37,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -540,6 +539,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -572,7 +572,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
@@ -596,7 +595,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -617,6 +615,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 41316cf0244121..92b33d5ffab190 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -36,7 +36,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -560,6 +559,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -592,7 +592,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
CONFIG_GLOB_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
@@ -617,7 +616,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -638,6 +636,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index 2fc3f0df6d434f..6aaa947bc8491a 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -56,7 +56,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -646,6 +645,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -678,7 +678,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
CONFIG_GLOB_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
@@ -703,7 +702,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -724,6 +722,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
index 9603f4396469d1..b62d65e5993838 100644
--- a/arch/m68k/configs/mvme147_defconfig
+++ b/arch/m68k/configs/mvme147_defconfig
@@ -34,7 +34,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -529,6 +528,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -561,7 +561,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
@@ -585,7 +584,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -606,6 +604,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
index c9cabd3344df85..8ecf261487d426 100644
--- a/arch/m68k/configs/mvme16x_defconfig
+++ b/arch/m68k/configs/mvme16x_defconfig
@@ -35,7 +35,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -530,6 +529,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -562,7 +562,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
@@ -586,7 +585,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -607,6 +605,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig
index 5f994bf44fb835..7540d908897bca 100644
--- a/arch/m68k/configs/q40_defconfig
+++ b/arch/m68k/configs/q40_defconfig
@@ -36,7 +36,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -547,6 +546,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -579,7 +579,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
CONFIG_GLOB_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
@@ -604,7 +603,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -625,6 +623,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig
index 183e33f7d4a07b..832b45944617c6 100644
--- a/arch/m68k/configs/sun3_defconfig
+++ b/arch/m68k/configs/sun3_defconfig
@@ -32,7 +32,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -529,6 +528,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -561,7 +561,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
@@ -584,7 +583,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -605,6 +603,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig
index 8214263b9ab8dc..9171b687e565e2 100644
--- a/arch/m68k/configs/sun3x_defconfig
+++ b/arch/m68k/configs/sun3x_defconfig
@@ -32,7 +32,6 @@ CONFIG_MQ_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_KYBER=m
CONFIG_IOSCHED_BFQ=m
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_COMPACTION is not set
CONFIG_ZPOOL=m
@@ -528,6 +527,7 @@ CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
@@ -560,7 +560,6 @@ CONFIG_CRYPTO_USER_API_AEAD=m
# CONFIG_CRYPTO_HW is not set
CONFIG_PRIME_NUMBERS=m
CONFIG_CRC32_SELFTEST=m
-CONFIG_CRC64=m
CONFIG_XZ_DEC_TEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
@@ -584,7 +583,6 @@ CONFIG_TEST_SCANF=m
CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_XARRAY=m
-CONFIG_TEST_OVERFLOW=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_SIPHASH=m
CONFIG_TEST_IDA=m
@@ -605,6 +603,5 @@ CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
-CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
CONFIG_TEST_FREE_PAGES=m
diff --git a/arch/m68k/configs/virt_defconfig b/arch/m68k/configs/virt_defconfig
new file mode 100644
index 00000000000000..8059bd618370dc
--- /dev/null
+++ b/arch/m68k/configs/virt_defconfig
@@ -0,0 +1,68 @@
+CONFIG_LOCALVERSION="-virt"
+CONFIG_SYSVIPC=y
+CONFIG_CGROUPS=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_VIRT=y
+CONFIG_PROC_HARDWARE=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_AMIGA_PARTITION=y
+CONFIG_ATARI_PARTITION=y
+CONFIG_MAC_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_LDM_PARTITION=y
+CONFIG_LDM_DEBUG=y
+CONFIG_SUN_PARTITION=y
+CONFIG_SYSV68_PARTITION=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_CGROUP_NET_PRIO=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_DEVTMPFS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_SCSI_VIRTIO=y
+CONFIG_NETDEVICES=y
+CONFIG_VIRTIO_NET=y
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_HW_RANDOM_VIRTIO=y
+CONFIG_DRM=y
+CONFIG_DRM_VIRTIO_GPU=y
+CONFIG_FB=y
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_VIRTIO=y
+CONFIG_VIRT_DRIVERS=y
+CONFIG_VIRTIO_INPUT=y
+CONFIG_EXT4_FS=y
+CONFIG_AUTOFS_FS=y
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_ZISOFS=y
+CONFIG_UDF_FS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_9P_FS=y
+CONFIG_9P_FS_POSIX_ACL=y
+CONFIG_9P_FS_SECURITY=y
+CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/include/asm/config.h b/arch/m68k/include/asm/config.h
index e73ffa23c4f567..9bb888ab50094b 100644
--- a/arch/m68k/include/asm/config.h
+++ b/arch/m68k/include/asm/config.h
@@ -17,6 +17,7 @@ extern int mac_parse_bootinfo(const struct bi_record *record);
extern int mvme147_parse_bootinfo(const struct bi_record *record);
extern int mvme16x_parse_bootinfo(const struct bi_record *record);
extern int q40_parse_bootinfo(const struct bi_record *record);
+extern int virt_parse_bootinfo(const struct bi_record *record);
extern void config_amiga(void);
extern void config_apollo(void);
@@ -29,5 +30,6 @@ extern void config_mvme16x(void);
extern void config_q40(void);
extern void config_sun3(void);
extern void config_sun3x(void);
+extern void config_virt(void);
#endif /* _M68K_CONFIG_H */
diff --git a/arch/m68k/include/asm/io.h b/arch/m68k/include/asm/io.h
index aabe6420ead2a5..aaeabc65e63c1c 100644
--- a/arch/m68k/include/asm/io.h
+++ b/arch/m68k/include/asm/io.h
@@ -8,6 +8,9 @@
#include <asm/io_mm.h>
#endif
+#define gf_ioread32 ioread32be
+#define gf_iowrite32 iowrite32be
+
#include <asm-generic/io.h>
#endif /* _M68K_IO_H */
diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h
index 91dd493791d746..7829e955ca0446 100644
--- a/arch/m68k/include/asm/irq.h
+++ b/arch/m68k/include/asm/irq.h
@@ -12,7 +12,8 @@
*/
#if defined(CONFIG_COLDFIRE)
#define NR_IRQS 256
-#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
+#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || \
+ defined(CONFIG_SUN3X) || defined(CONFIG_VIRT)
#define NR_IRQS 200
#elif defined(CONFIG_ATARI)
#define NR_IRQS 141
diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h
index 143ba7de9bda1c..9b4e2fe2ac8216 100644
--- a/arch/m68k/include/asm/pgtable_mm.h
+++ b/arch/m68k/include/asm/pgtable_mm.h
@@ -80,6 +80,9 @@
#elif defined(CONFIG_COLDFIRE)
#define KMAP_START 0xe0000000
#define KMAP_END 0xf0000000
+#elif defined(CONFIG_VIRT)
+#define KMAP_START 0xdf000000
+#define KMAP_END 0xff000000
#else
#define KMAP_START 0xd0000000
#define KMAP_END 0xf0000000
@@ -92,6 +95,10 @@ extern unsigned long m68k_vmalloc_end;
#elif defined(CONFIG_COLDFIRE)
#define VMALLOC_START 0xd0000000
#define VMALLOC_END 0xe0000000
+#elif defined(CONFIG_VIRT)
+#define VMALLOC_OFFSET PAGE_SIZE
+#define VMALLOC_START (((unsigned long) high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
+#define VMALLOC_END KMAP_START
#else
/* Just any arbitrary offset to the start of the vmalloc VM area: the
* current 8MB value just means that there will be a 8MB "hole" after the
diff --git a/arch/m68k/include/asm/raw_io.h b/arch/m68k/include/asm/raw_io.h
index 80eb2396d01ebf..3ba40bc1dfaa94 100644
--- a/arch/m68k/include/asm/raw_io.h
+++ b/arch/m68k/include/asm/raw_io.h
@@ -80,14 +80,14 @@
({ u16 __v = le16_to_cpu(*(__force volatile u16 *) (addr)); __v; })
#define rom_out_8(addr, b) \
- ({u8 __maybe_unused __w, __v = (b); u32 _addr = ((u32) (addr)); \
+ (void)({u8 __maybe_unused __w, __v = (b); u32 _addr = ((u32) (addr)); \
__w = ((*(__force volatile u8 *) ((_addr | 0x10000) + (__v<<1)))); })
#define rom_out_be16(addr, w) \
- ({u16 __maybe_unused __w, __v = (w); u32 _addr = ((u32) (addr)); \
+ (void)({u16 __maybe_unused __w, __v = (w); u32 _addr = ((u32) (addr)); \
__w = ((*(__force volatile u16 *) ((_addr & 0xFFFF0000UL) + ((__v & 0xFF)<<1)))); \
__w = ((*(__force volatile u16 *) ((_addr | 0x10000) + ((__v >> 8)<<1)))); })
#define rom_out_le16(addr, w) \
- ({u16 __maybe_unused __w, __v = (w); u32 _addr = ((u32) (addr)); \
+ (void)({u16 __maybe_unused __w, __v = (w); u32 _addr = ((u32) (addr)); \
__w = ((*(__force volatile u16 *) ((_addr & 0xFFFF0000UL) + ((__v >> 8)<<1)))); \
__w = ((*(__force volatile u16 *) ((_addr | 0x10000) + ((__v & 0xFF)<<1)))); })
diff --git a/arch/m68k/include/asm/setup.h b/arch/m68k/include/asm/setup.h
index 8f2023f8c1c457..2c99477aaf89ac 100644
--- a/arch/m68k/include/asm/setup.h
+++ b/arch/m68k/include/asm/setup.h
@@ -37,7 +37,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_ATARI) || defined(CONFIG_MAC) || defined(CONFIG_APOLLO) \
|| defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000) \
|| defined(CONFIG_HP300) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_AMIGA (m68k_machtype == MACH_AMIGA)
#else
# define MACH_AMIGA_ONLY
@@ -50,7 +51,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_APOLLO) \
|| defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000) \
|| defined(CONFIG_HP300) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_ATARI (m68k_machtype == MACH_ATARI)
#else
# define MACH_ATARI_ONLY
@@ -63,7 +65,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_ATARI) || defined(CONFIG_APOLLO) \
|| defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000) \
|| defined(CONFIG_HP300) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_MAC (m68k_machtype == MACH_MAC)
#else
# define MACH_MAC_ONLY
@@ -84,7 +87,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
|| defined(CONFIG_MVME16x) || defined(CONFIG_BVME6000) \
|| defined(CONFIG_HP300) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_APOLLO (m68k_machtype == MACH_APOLLO)
#else
# define MACH_APOLLO_ONLY
@@ -97,7 +101,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
|| defined(CONFIG_APOLLO) || defined(CONFIG_BVME6000) \
|| defined(CONFIG_HP300) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME16x)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME16x) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_MVME147 (m68k_machtype == MACH_MVME147)
#else
# define MACH_MVME147_ONLY
@@ -110,7 +115,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
|| defined(CONFIG_APOLLO) || defined(CONFIG_BVME6000) \
|| defined(CONFIG_HP300) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_MVME16x (m68k_machtype == MACH_MVME16x)
#else
# define MACH_MVME16x_ONLY
@@ -123,7 +129,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
|| defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x) \
|| defined(CONFIG_HP300) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_BVME6000 (m68k_machtype == MACH_BVME6000)
#else
# define MACH_BVME6000_ONLY
@@ -136,7 +143,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
|| defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x) \
|| defined(CONFIG_BVME6000) || defined(CONFIG_Q40) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_HP300 (m68k_machtype == MACH_HP300)
#else
# define MACH_HP300_ONLY
@@ -149,7 +157,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
|| defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x) \
|| defined(CONFIG_BVME6000) || defined(CONFIG_HP300) \
- || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147)
+ || defined(CONFIG_SUN3X) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_Q40 (m68k_machtype == MACH_Q40)
#else
# define MACH_Q40_ONLY
@@ -162,7 +171,8 @@ extern unsigned long m68k_machtype;
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
|| defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x) \
|| defined(CONFIG_BVME6000) || defined(CONFIG_HP300) \
- || defined(CONFIG_Q40) || defined(CONFIG_MVME147)
+ || defined(CONFIG_Q40) || defined(CONFIG_MVME147) \
+ || defined(CONFIG_VIRT)
# define MACH_IS_SUN3X (m68k_machtype == MACH_SUN3X)
#else
# define CONFIG_SUN3X_ONLY
@@ -170,6 +180,20 @@ extern unsigned long m68k_machtype;
# define MACH_TYPE (MACH_SUN3X)
#endif
+#if !defined(CONFIG_VIRT)
+# define MACH_IS_VIRT (0)
+#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC) || defined(CONFIG_ATARI) \
+ || defined(CONFIG_APOLLO) || defined(CONFIG_MVME16x) \
+ || defined(CONFIG_BVME6000) || defined(CONFIG_HP300) \
+ || defined(CONFIG_Q40) || defined(CONFIG_SUN3X) \
+ || defined(CONFIG_MVME147)
+# define MACH_IS_VIRT (m68k_machtype == MACH_VIRT)
+#else
+# define MACH_VIRT_ONLY
+# define MACH_IS_VIRT (1)
+# define MACH_TYPE (MACH_VIRT)
+#endif
+
#ifndef MACH_TYPE
# define MACH_TYPE (m68k_machtype)
#endif
diff --git a/arch/m68k/include/asm/virt.h b/arch/m68k/include/asm/virt.h
new file mode 100644
index 00000000000000..d3320c9547962f
--- /dev/null
+++ b/arch/m68k/include/asm/virt.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VIRT_H
+#define __ASM_VIRT_H
+
+#define NUM_VIRT_SOURCES 200
+
+struct virt_booter_device_data {
+ u32 mmio;
+ u32 irq;
+};
+
+struct virt_booter_data {
+ u32 qemu_version;
+ struct virt_booter_device_data pic;
+ struct virt_booter_device_data rtc;
+ struct virt_booter_device_data tty;
+ struct virt_booter_device_data ctrl;
+ struct virt_booter_device_data virtio;
+};
+
+extern struct virt_booter_data virt_bi_data;
+
+extern void __init virt_init_IRQ(void);
+
+#endif
diff --git a/arch/m68k/include/uapi/asm/bootinfo-virt.h b/arch/m68k/include/uapi/asm/bootinfo-virt.h
new file mode 100644
index 00000000000000..e4db7e2213abc7
--- /dev/null
+++ b/arch/m68k/include/uapi/asm/bootinfo-virt.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * asm/bootinfo-virt.h -- Virtual-m68k-specific boot information definitions
+ */
+
+#ifndef _UAPI_ASM_M68K_BOOTINFO_VIRT_H
+#define _UAPI_ASM_M68K_BOOTINFO_VIRT_H
+
+#define BI_VIRT_QEMU_VERSION 0x8000
+#define BI_VIRT_GF_PIC_BASE 0x8001
+#define BI_VIRT_GF_RTC_BASE 0x8002
+#define BI_VIRT_GF_TTY_BASE 0x8003
+#define BI_VIRT_VIRTIO_BASE 0x8004
+#define BI_VIRT_CTRL_BASE 0x8005
+
+#define VIRT_BOOTI_VERSION MK_BI_VERSION(2, 0)
+
+#endif /* _UAPI_ASM_M68K_BOOTINFO_MAC_H */
diff --git a/arch/m68k/include/uapi/asm/bootinfo.h b/arch/m68k/include/uapi/asm/bootinfo.h
index 38d3140381fa8e..203d9cbf963028 100644
--- a/arch/m68k/include/uapi/asm/bootinfo.h
+++ b/arch/m68k/include/uapi/asm/bootinfo.h
@@ -83,6 +83,7 @@ struct mem_info {
#define MACH_SUN3X 11
#define MACH_M54XX 12
#define MACH_M5441X 13
+#define MACH_VIRT 14
/*
diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile
index dbac7f8743fcc4..c0833da6a2ca6b 100644
--- a/arch/m68k/kernel/Makefile
+++ b/arch/m68k/kernel/Makefile
@@ -11,6 +11,7 @@ extra-$(CONFIG_VME) := head.o
extra-$(CONFIG_HP300) := head.o
extra-$(CONFIG_Q40) := head.o
extra-$(CONFIG_SUN3X) := head.o
+extra-$(CONFIG_VIRT) := head.o
extra-$(CONFIG_SUN3) := sun3-head.o
extra-y += vmlinux.lds
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 9434fca68de5d0..18f278bdbd218e 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -181,7 +181,7 @@ do_trace_entry:
movel #-ENOSYS,%sp@(PT_OFF_D0)| needed for strace
subql #4,%sp
SAVE_SWITCH_STACK
- jbsr syscall_trace
+ jbsr syscall_trace_enter
RESTORE_SWITCH_STACK
addql #4,%sp
movel %sp@(PT_OFF_ORIG_D0),%d0
@@ -194,7 +194,7 @@ badsys:
do_trace_exit:
subql #4,%sp
SAVE_SWITCH_STACK
- jbsr syscall_trace
+ jbsr syscall_trace_leave
RESTORE_SWITCH_STACK
addql #4,%sp
jra .Lret_from_exception
diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S
index 493c95db0e512d..9e812d8606be83 100644
--- a/arch/m68k/kernel/head.S
+++ b/arch/m68k/kernel/head.S
@@ -262,6 +262,7 @@
#include <asm/bootinfo-hp300.h>
#include <asm/bootinfo-mac.h>
#include <asm/bootinfo-q40.h>
+#include <asm/bootinfo-virt.h>
#include <asm/bootinfo-vme.h>
#include <asm/setup.h>
#include <asm/entry.h>
@@ -534,6 +535,7 @@ func_define putn,1
#define is_not_apollo(lab) cmpl &MACH_APOLLO,%pc@(m68k_machtype); jne lab
#define is_not_q40(lab) cmpl &MACH_Q40,%pc@(m68k_machtype); jne lab
#define is_not_sun3x(lab) cmpl &MACH_SUN3X,%pc@(m68k_machtype); jne lab
+#define is_not_virt(lab) cmpl &MACH_VIRT,%pc@(m68k_machtype); jne lab
#define hasnt_leds(lab) cmpl &MACH_HP300,%pc@(m68k_machtype); \
jeq 42f; \
@@ -647,6 +649,14 @@ ENTRY(__start)
L(test_notmac):
#endif /* CONFIG_MAC */
+#ifdef CONFIG_VIRT
+ is_not_virt(L(test_notvirt))
+
+ get_bi_record BI_VIRT_GF_TTY_BASE
+ lea %pc@(L(virt_gf_tty_base)),%a1
+ movel %a0@,%a1@
+L(test_notvirt):
+#endif /* CONFIG_VIRT */
/*
* There are ultimately two pieces of information we want for all kinds of
@@ -1237,6 +1247,13 @@ L(mmu_init_not_mac):
L(notsun3x):
#endif
+#ifdef CONFIG_VIRT
+ is_not_virt(L(novirt))
+ mmu_map_tt #1,#0xFF000000,#0x01000000,#_PAGE_NOCACHE_S
+ jbra L(mmu_init_done)
+L(novirt):
+#endif
+
#ifdef CONFIG_APOLLO
is_not_apollo(L(notapollo))
@@ -3186,6 +3203,14 @@ func_start serial_putc,%d0/%d1/%a0/%a1
3:
#endif
+#ifdef CONFIG_VIRT
+ is_not_virt(1f)
+
+ movel L(virt_gf_tty_base),%a1
+ movel %d0,%a1@(GF_PUT_CHAR)
+1:
+#endif
+
L(serial_putc_done):
func_return serial_putc
@@ -3865,3 +3890,9 @@ q40_mem_cptr:
L(q40_do_debug):
.long 0
#endif
+
+#if defined(CONFIG_VIRT)
+GF_PUT_CHAR = 0x00
+L(virt_gf_tty_base):
+ .long 0
+#endif /* CONFIG_VIRT */
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 6342ff4d2073f5..daebccdd2c0939 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -270,12 +270,6 @@ out_eio:
return -EIO;
}
-asmlinkage void syscall_trace(void)
-{
- ptrace_report_syscall(0);
-}
-
-#if defined(CONFIG_COLDFIRE) || !defined(CONFIG_MMU)
asmlinkage int syscall_trace_enter(void)
{
int ret = 0;
@@ -290,4 +284,3 @@ asmlinkage void syscall_trace_leave(void)
if (test_thread_flag(TIF_SYSCALL_TRACE))
ptrace_report_syscall_exit(task_pt_regs(current), 0);
}
-#endif /* CONFIG_COLDFIRE */
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index 8f94feed969c41..78ab562beb315f 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -181,6 +181,8 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record)
unknown = hp300_parse_bootinfo(record);
else if (MACH_IS_APOLLO)
unknown = apollo_parse_bootinfo(record);
+ else if (MACH_IS_VIRT)
+ unknown = virt_parse_bootinfo(record);
else
unknown = 1;
}
@@ -312,6 +314,11 @@ void __init setup_arch(char **cmdline_p)
config_BSP(NULL, 0);
break;
#endif
+#ifdef CONFIG_VIRT
+ case MACH_VIRT:
+ config_virt();
+ break;
+#endif
default:
panic("No configuration setup");
}
diff --git a/arch/m68k/math-emu/fp_arith.c b/arch/m68k/math-emu/fp_arith.c
index d9033238d09703..f4a06492cd7a11 100644
--- a/arch/m68k/math-emu/fp_arith.c
+++ b/arch/m68k/math-emu/fp_arith.c
@@ -243,7 +243,7 @@ fp_fdiv(struct fp_ext *dest, struct fp_ext *src)
/* infinity / infinity = NaN (quiet, as always) */
if (IS_INF(src))
fp_set_nan(dest);
- /* infinity / anything else = infinity (with approprate sign) */
+ /* infinity / anything else = infinity (with appropriate sign) */
return dest;
}
if (IS_INF(src)) {
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index 20ddf71b43d05a..7594a945732b11 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -179,6 +179,12 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla
return (void __iomem *)physaddr;
}
#endif
+#ifdef CONFIG_VIRT
+ if (MACH_IS_VIRT) {
+ if (physaddr >= 0xff000000 && cacheflag == IOMAP_NOCACHE_SER)
+ return (void __iomem *)physaddr;
+ }
+#endif
#ifdef CONFIG_COLDFIRE
if (__cf_internalio(physaddr))
return (void __iomem *) physaddr;
@@ -293,17 +299,20 @@ EXPORT_SYMBOL(__ioremap);
void iounmap(void __iomem *addr)
{
#ifdef CONFIG_AMIGA
- if ((!MACH_IS_AMIGA) ||
- (((unsigned long)addr < 0x40000000) ||
- ((unsigned long)addr > 0x60000000)))
- free_io_area((__force void *)addr);
-#else
+ if (MACH_IS_AMIGA &&
+ ((unsigned long)addr >= 0x40000000) &&
+ ((unsigned long)addr < 0x60000000))
+ return;
+#endif
+#ifdef CONFIG_VIRT
+ if (MACH_IS_VIRT && (unsigned long)addr >= 0xff000000)
+ return;
+#endif
#ifdef CONFIG_COLDFIRE
if (cf_internalio(addr))
return;
#endif
free_io_area((__force void *)addr);
-#endif
}
EXPORT_SYMBOL(iounmap);
diff --git a/arch/m68k/virt/Makefile b/arch/m68k/virt/Makefile
new file mode 100644
index 00000000000000..54b9b286665478
--- /dev/null
+++ b/arch/m68k/virt/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for Linux arch/m68k/virt source directory
+#
+
+obj-y := config.o ints.o platform.o
diff --git a/arch/m68k/virt/config.c b/arch/m68k/virt/config.c
new file mode 100644
index 00000000000000..68d29c8b87e188
--- /dev/null
+++ b/arch/m68k/virt/config.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/serial_core.h>
+#include <clocksource/timer-goldfish.h>
+
+#include <asm/bootinfo.h>
+#include <asm/bootinfo-virt.h>
+#include <asm/byteorder.h>
+#include <asm/machdep.h>
+#include <asm/virt.h>
+#include <asm/config.h>
+
+struct virt_booter_data virt_bi_data;
+
+#define VIRT_CTRL_REG_FEATURES 0x00
+#define VIRT_CTRL_REG_CMD 0x04
+
+static struct resource ctrlres;
+
+enum {
+ CMD_NOOP,
+ CMD_RESET,
+ CMD_HALT,
+ CMD_PANIC,
+};
+
+static void virt_get_model(char *str)
+{
+ /* str is 80 characters long */
+ sprintf(str, "QEMU Virtual M68K Machine (%u.%u.%u)",
+ (u8)(virt_bi_data.qemu_version >> 24),
+ (u8)(virt_bi_data.qemu_version >> 16),
+ (u8)(virt_bi_data.qemu_version >> 8));
+}
+
+static void virt_halt(void)
+{
+ void __iomem *base = (void __iomem *)virt_bi_data.ctrl.mmio;
+
+ iowrite32be(CMD_HALT, base + VIRT_CTRL_REG_CMD);
+ local_irq_disable();
+ while (1)
+ ;
+}
+
+static void virt_reset(void)
+{
+ void __iomem *base = (void __iomem *)virt_bi_data.ctrl.mmio;
+
+ iowrite32be(CMD_RESET, base + VIRT_CTRL_REG_CMD);
+ local_irq_disable();
+ while (1)
+ ;
+}
+
+/*
+ * Parse a virtual-m68k-specific record in the bootinfo
+ */
+
+int __init virt_parse_bootinfo(const struct bi_record *record)
+{
+ int unknown = 0;
+ const void *data = record->data;
+
+ switch (be16_to_cpu(record->tag)) {
+ case BI_VIRT_QEMU_VERSION:
+ virt_bi_data.qemu_version = be32_to_cpup(data);
+ break;
+ case BI_VIRT_GF_PIC_BASE:
+ virt_bi_data.pic.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.pic.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_GF_RTC_BASE:
+ virt_bi_data.rtc.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.rtc.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_GF_TTY_BASE:
+ virt_bi_data.tty.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.tty.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_CTRL_BASE:
+ virt_bi_data.ctrl.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.ctrl.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_VIRTIO_BASE:
+ virt_bi_data.virtio.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.virtio.irq = be32_to_cpup(data);
+ break;
+ default:
+ unknown = 1;
+ break;
+ }
+ return unknown;
+}
+
+static void __init virt_sched_init(void)
+{
+ goldfish_timer_init(virt_bi_data.rtc.irq,
+ (void __iomem *)virt_bi_data.rtc.mmio);
+}
+
+void __init config_virt(void)
+{
+ char earlycon[24];
+
+ snprintf(earlycon, sizeof(earlycon), "early_gf_tty,0x%08x",
+ virt_bi_data.tty.mmio);
+ setup_earlycon(earlycon);
+
+ ctrlres = (struct resource)
+ DEFINE_RES_MEM_NAMED(virt_bi_data.ctrl.mmio, 0x100,
+ "virtctrl");
+
+ if (request_resource(&iomem_resource, &ctrlres)) {
+ pr_err("Cannot allocate virt controller resource\n");
+ return;
+ }
+
+ mach_init_IRQ = virt_init_IRQ;
+ mach_sched_init = virt_sched_init;
+ mach_get_model = virt_get_model;
+ mach_reset = virt_reset;
+ mach_halt = virt_halt;
+ mach_power_off = virt_halt;
+}
diff --git a/arch/m68k/virt/ints.c b/arch/m68k/virt/ints.c
new file mode 100644
index 00000000000000..95818f901ebe32
--- /dev/null
+++ b/arch/m68k/virt/ints.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/sched/debug.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+
+#include <asm/hwtest.h>
+#include <asm/irq.h>
+#include <asm/irq_regs.h>
+#include <asm/virt.h>
+
+#define GFPIC_REG_IRQ_PENDING 0x04
+#define GFPIC_REG_IRQ_DISABLE_ALL 0x08
+#define GFPIC_REG_IRQ_DISABLE 0x0c
+#define GFPIC_REG_IRQ_ENABLE 0x10
+
+extern void show_registers(struct pt_regs *regs);
+
+static struct resource picres[6];
+static const char *picname[6] = {
+ "goldfish_pic.0",
+ "goldfish_pic.1",
+ "goldfish_pic.2",
+ "goldfish_pic.3",
+ "goldfish_pic.4",
+ "goldfish_pic.5"
+};
+
+/*
+ * 6 goldfish-pic for CPU IRQ #1 to IRQ #6
+ * CPU IRQ #1 -> PIC #1
+ * IRQ #1 to IRQ #31 -> unused
+ * IRQ #32 -> goldfish-tty
+ * CPU IRQ #2 -> PIC #2
+ * IRQ #1 to IRQ #32 -> virtio-mmio from 1 to 32
+ * CPU IRQ #3 -> PIC #3
+ * IRQ #1 to IRQ #32 -> virtio-mmio from 33 to 64
+ * CPU IRQ #4 -> PIC #4
+ * IRQ #1 to IRQ #32 -> virtio-mmio from 65 to 96
+ * CPU IRQ #5 -> PIC #5
+ * IRQ #1 to IRQ #32 -> virtio-mmio from 97 to 128
+ * CPU IRQ #6 -> PIC #6
+ * IRQ #1 -> goldfish-timer
+ * IRQ #2 -> goldfish-rtc
+ * IRQ #3 to IRQ #32 -> unused
+ * CPU IRQ #7 -> NMI
+ */
+
+static u32 gfpic_read(int pic, int reg)
+{
+ void __iomem *base = (void __iomem *)(virt_bi_data.pic.mmio +
+ pic * 0x1000);
+
+ return ioread32be(base + reg);
+}
+
+static void gfpic_write(u32 value, int pic, int reg)
+{
+ void __iomem *base = (void __iomem *)(virt_bi_data.pic.mmio +
+ pic * 0x1000);
+
+ iowrite32be(value, base + reg);
+}
+
+#define GF_PIC(irq) ((irq - IRQ_USER) / 32)
+#define GF_IRQ(irq) ((irq - IRQ_USER) % 32)
+
+static void virt_irq_enable(struct irq_data *data)
+{
+ gfpic_write(BIT(GF_IRQ(data->irq)), GF_PIC(data->irq),
+ GFPIC_REG_IRQ_ENABLE);
+}
+
+static void virt_irq_disable(struct irq_data *data)
+{
+ gfpic_write(BIT(GF_IRQ(data->irq)), GF_PIC(data->irq),
+ GFPIC_REG_IRQ_DISABLE);
+}
+
+static unsigned int virt_irq_startup(struct irq_data *data)
+{
+ virt_irq_enable(data);
+ return 0;
+}
+
+static irqreturn_t virt_nmi_handler(int irq, void *dev_id)
+{
+ static int in_nmi;
+
+ if (READ_ONCE(in_nmi))
+ return IRQ_HANDLED;
+ WRITE_ONCE(in_nmi, 1);
+
+ pr_warn("Non-Maskable Interrupt\n");
+ show_registers(get_irq_regs());
+
+ WRITE_ONCE(in_nmi, 0);
+ return IRQ_HANDLED;
+}
+
+static struct irq_chip virt_irq_chip = {
+ .name = "virt",
+ .irq_enable = virt_irq_enable,
+ .irq_disable = virt_irq_disable,
+ .irq_startup = virt_irq_startup,
+ .irq_shutdown = virt_irq_disable,
+};
+
+static void goldfish_pic_irq(struct irq_desc *desc)
+{
+ u32 irq_pending;
+ unsigned int irq_num;
+ unsigned int pic = desc->irq_data.irq - 1;
+
+ irq_pending = gfpic_read(pic, GFPIC_REG_IRQ_PENDING);
+ irq_num = IRQ_USER + pic * 32;
+
+ do {
+ if (irq_pending & 1)
+ generic_handle_irq(irq_num);
+ ++irq_num;
+ irq_pending >>= 1;
+ } while (irq_pending);
+}
+
+void __init virt_init_IRQ(void)
+{
+ unsigned int i;
+
+ m68k_setup_irq_controller(&virt_irq_chip, handle_simple_irq, IRQ_USER,
+ NUM_VIRT_SOURCES - IRQ_USER);
+
+ for (i = 0; i < 6; i++) {
+
+ picres[i] = (struct resource)
+ DEFINE_RES_MEM_NAMED(virt_bi_data.pic.mmio + i * 0x1000,
+ 0x1000, picname[i]);
+ if (request_resource(&iomem_resource, &picres[i])) {
+ pr_err("Cannot allocate %s resource\n", picname[i]);
+ return;
+ }
+
+ irq_set_chained_handler(virt_bi_data.pic.irq + i,
+ goldfish_pic_irq);
+ }
+
+ if (request_irq(IRQ_AUTO_7, virt_nmi_handler, 0, "NMI",
+ virt_nmi_handler))
+ pr_err("Couldn't register NMI\n");
+}
diff --git a/arch/m68k/virt/platform.c b/arch/m68k/virt/platform.c
new file mode 100644
index 00000000000000..cb820f19a22190
--- /dev/null
+++ b/arch/m68k/virt/platform.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/memblock.h>
+#include <asm/virt.h>
+#include <asm/irq.h>
+
+#define VIRTIO_BUS_NB 128
+
+static int __init virt_virtio_init(unsigned int id)
+{
+ const struct resource res[] = {
+ DEFINE_RES_MEM(virt_bi_data.virtio.mmio + id * 0x200, 0x200),
+ DEFINE_RES_IRQ(virt_bi_data.virtio.irq + id),
+ };
+ struct platform_device *pdev;
+
+ pdev = platform_device_register_simple("virtio-mmio", id,
+ res, ARRAY_SIZE(res));
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ return 0;
+}
+
+static int __init virt_platform_init(void)
+{
+ const struct resource goldfish_tty_res[] = {
+ DEFINE_RES_MEM(virt_bi_data.tty.mmio, 1),
+ DEFINE_RES_IRQ(virt_bi_data.tty.irq),
+ };
+ /* this is the second gf-rtc, the first one is used by the scheduler */
+ const struct resource goldfish_rtc_res[] = {
+ DEFINE_RES_MEM(virt_bi_data.rtc.mmio + 0x1000, 0x1000),
+ DEFINE_RES_IRQ(virt_bi_data.rtc.irq + 1),
+ };
+ struct platform_device *pdev;
+ unsigned int i;
+
+ if (!MACH_IS_VIRT)
+ return -ENODEV;
+
+ /* We need this to have DMA'able memory provided to goldfish-tty */
+ min_low_pfn = 0;
+
+ pdev = platform_device_register_simple("goldfish_tty",
+ PLATFORM_DEVID_NONE,
+ goldfish_tty_res,
+ ARRAY_SIZE(goldfish_tty_res));
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ pdev = platform_device_register_simple("goldfish_rtc",
+ PLATFORM_DEVID_NONE,
+ goldfish_rtc_res,
+ ARRAY_SIZE(goldfish_rtc_res));
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ for (i = 0; i < VIRTIO_BUS_NB; i++) {
+ int err;
+
+ err = virt_virtio_init(i);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+arch_initcall(virt_platform_init);
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 1589ae7d5abb63..06866bfa182690 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -711,4 +711,11 @@ config MICROCHIP_PIT64B
modes and high resolution. It is used as a clocksource
and a clockevent.
+config GOLDFISH_TIMER
+ bool "Clocksource using goldfish-rtc"
+ depends on M68K || COMPILE_TEST
+ depends on RTC_DRV_GOLDFISH
+ help
+ Support for the timer/counter of goldfish-rtc
+
endmenu
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 9c85ee2bb37350..b839beb6ea539f 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -88,3 +88,4 @@ obj-$(CONFIG_GX6605S_TIMER) += timer-gx6605s.o
obj-$(CONFIG_HYPERV_TIMER) += hyperv_timer.o
obj-$(CONFIG_MICROCHIP_PIT64B) += timer-microchip-pit64b.o
obj-$(CONFIG_MSC313E_TIMER) += timer-msc313e.o
+obj-$(CONFIG_GOLDFISH_TIMER) += timer-goldfish.o
diff --git a/drivers/clocksource/timer-goldfish.c b/drivers/clocksource/timer-goldfish.c
new file mode 100644
index 00000000000000..0512d5eabc82af
--- /dev/null
+++ b/drivers/clocksource/timer-goldfish.c
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/goldfish.h>
+#include <clocksource/timer-goldfish.h>
+
+struct goldfish_timer {
+ struct clocksource cs;
+ struct clock_event_device ced;
+ struct resource res;
+ void __iomem *base;
+};
+
+static struct goldfish_timer *ced_to_gf(struct clock_event_device *ced)
+{
+ return container_of(ced, struct goldfish_timer, ced);
+}
+
+static struct goldfish_timer *cs_to_gf(struct clocksource *cs)
+{
+ return container_of(cs, struct goldfish_timer, cs);
+}
+
+static u64 goldfish_timer_read(struct clocksource *cs)
+{
+ struct goldfish_timer *timerdrv = cs_to_gf(cs);
+ void __iomem *base = timerdrv->base;
+ u32 time_low, time_high;
+ u64 ticks;
+
+ /*
+ * time_low: get low bits of current time and update time_high
+ * time_high: get high bits of time at last time_low read
+ */
+ time_low = gf_ioread32(base + TIMER_TIME_LOW);
+ time_high = gf_ioread32(base + TIMER_TIME_HIGH);
+
+ ticks = ((u64)time_high << 32) | time_low;
+
+ return ticks;
+}
+
+static int goldfish_timer_set_oneshot(struct clock_event_device *evt)
+{
+ struct goldfish_timer *timerdrv = ced_to_gf(evt);
+ void __iomem *base = timerdrv->base;
+
+ gf_iowrite32(0, base + TIMER_ALARM_HIGH);
+ gf_iowrite32(0, base + TIMER_ALARM_LOW);
+ gf_iowrite32(1, base + TIMER_IRQ_ENABLED);
+
+ return 0;
+}
+
+static int goldfish_timer_shutdown(struct clock_event_device *evt)
+{
+ struct goldfish_timer *timerdrv = ced_to_gf(evt);
+ void __iomem *base = timerdrv->base;
+
+ gf_iowrite32(0, base + TIMER_IRQ_ENABLED);
+
+ return 0;
+}
+
+static int goldfish_timer_next_event(unsigned long delta,
+ struct clock_event_device *evt)
+{
+ struct goldfish_timer *timerdrv = ced_to_gf(evt);
+ void __iomem *base = timerdrv->base;
+ u64 now;
+
+ now = goldfish_timer_read(&timerdrv->cs);
+
+ now += delta;
+
+ gf_iowrite32(upper_32_bits(now), base + TIMER_ALARM_HIGH);
+ gf_iowrite32(lower_32_bits(now), base + TIMER_ALARM_LOW);
+
+ return 0;
+}
+
+static irqreturn_t goldfish_timer_irq(int irq, void *dev_id)
+{
+ struct goldfish_timer *timerdrv = dev_id;
+ struct clock_event_device *evt = &timerdrv->ced;
+ void __iomem *base = timerdrv->base;
+
+ gf_iowrite32(1, base + TIMER_CLEAR_INTERRUPT);
+
+ evt->event_handler(evt);
+
+ return IRQ_HANDLED;
+}
+
+int __init goldfish_timer_init(int irq, void __iomem *base)
+{
+ struct goldfish_timer *timerdrv;
+ int ret;
+
+ timerdrv = kzalloc(sizeof(*timerdrv), GFP_KERNEL);
+ if (!timerdrv)
+ return -ENOMEM;
+
+ timerdrv->base = base;
+
+ timerdrv->ced = (struct clock_event_device){
+ .name = "goldfish_timer",
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .set_state_shutdown = goldfish_timer_shutdown,
+ .set_state_oneshot = goldfish_timer_set_oneshot,
+ .set_next_event = goldfish_timer_next_event,
+ };
+
+ timerdrv->res = (struct resource){
+ .name = "goldfish_timer",
+ .start = (unsigned long)base,
+ .end = (unsigned long)base + 0xfff,
+ };
+
+ ret = request_resource(&iomem_resource, &timerdrv->res);
+ if (ret) {
+ pr_err("Cannot allocate '%s' resource\n", timerdrv->res.name);
+ return ret;
+ }
+
+ timerdrv->cs = (struct clocksource){
+ .name = "goldfish_timer",
+ .rating = 400,
+ .read = goldfish_timer_read,
+ .mask = CLOCKSOURCE_MASK(64),
+ .flags = 0,
+ .max_idle_ns = LONG_MAX,
+ };
+
+ clocksource_register_hz(&timerdrv->cs, NSEC_PER_SEC);
+
+ ret = request_irq(irq, goldfish_timer_irq, IRQF_TIMER,
+ "goldfish_timer", timerdrv);
+ if (ret) {
+ pr_err("Couldn't register goldfish-timer interrupt\n");
+ return ret;
+ }
+
+ clockevents_config_and_register(&timerdrv->ced, NSEC_PER_SEC,
+ 1, 0xffffffff);
+
+ return 0;
+}
diff --git a/drivers/rtc/rtc-goldfish.c b/drivers/rtc/rtc-goldfish.c
index 7ab95d05264402..59c0f38cc08dfe 100644
--- a/drivers/rtc/rtc-goldfish.c
+++ b/drivers/rtc/rtc-goldfish.c
@@ -10,18 +10,8 @@
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
-
-#define TIMER_TIME_LOW 0x00 /* get low bits of current time */
- /* and update TIMER_TIME_HIGH */
-#define TIMER_TIME_HIGH 0x04 /* get high bits of time at last */
- /* TIMER_TIME_LOW read */
-#define TIMER_ALARM_LOW 0x08 /* set low bits of alarm and */
- /* activate it */
-#define TIMER_ALARM_HIGH 0x0c /* set high bits of next alarm */
-#define TIMER_IRQ_ENABLED 0x10
-#define TIMER_CLEAR_ALARM 0x14
-#define TIMER_ALARM_STATUS 0x18
-#define TIMER_CLEAR_INTERRUPT 0x1c
+#include <linux/goldfish.h>
+#include <clocksource/timer-goldfish.h>
struct goldfish_rtc {
void __iomem *base;
@@ -41,8 +31,8 @@ static int goldfish_rtc_read_alarm(struct device *dev,
rtcdrv = dev_get_drvdata(dev);
base = rtcdrv->base;
- rtc_alarm_low = readl(base + TIMER_ALARM_LOW);
- rtc_alarm_high = readl(base + TIMER_ALARM_HIGH);
+ rtc_alarm_low = gf_ioread32(base + TIMER_ALARM_LOW);
+ rtc_alarm_high = gf_ioread32(base + TIMER_ALARM_HIGH);
rtc_alarm = (rtc_alarm_high << 32) | rtc_alarm_low;
do_div(rtc_alarm, NSEC_PER_SEC);
@@ -50,7 +40,7 @@ static int goldfish_rtc_read_alarm(struct device *dev,
rtc_time64_to_tm(rtc_alarm, &alrm->time);
- if (readl(base + TIMER_ALARM_STATUS))
+ if (gf_ioread32(base + TIMER_ALARM_STATUS))
alrm->enabled = 1;
else
alrm->enabled = 0;
@@ -71,18 +61,18 @@ static int goldfish_rtc_set_alarm(struct device *dev,
if (alrm->enabled) {
rtc_alarm64 = rtc_tm_to_time64(&alrm->time) * NSEC_PER_SEC;
- writel((rtc_alarm64 >> 32), base + TIMER_ALARM_HIGH);
- writel(rtc_alarm64, base + TIMER_ALARM_LOW);
- writel(1, base + TIMER_IRQ_ENABLED);
+ gf_iowrite32((rtc_alarm64 >> 32), base + TIMER_ALARM_HIGH);
+ gf_iowrite32(rtc_alarm64, base + TIMER_ALARM_LOW);
+ gf_iowrite32(1, base + TIMER_IRQ_ENABLED);
} else {
/*
* if this function was called with enabled=0
* then it could mean that the application is
* trying to cancel an ongoing alarm
*/
- rtc_status_reg = readl(base + TIMER_ALARM_STATUS);
+ rtc_status_reg = gf_ioread32(base + TIMER_ALARM_STATUS);
if (rtc_status_reg)
- writel(1, base + TIMER_CLEAR_ALARM);
+ gf_iowrite32(1, base + TIMER_CLEAR_ALARM);
}
return 0;
@@ -98,9 +88,9 @@ static int goldfish_rtc_alarm_irq_enable(struct device *dev,
base = rtcdrv->base;
if (enabled)
- writel(1, base + TIMER_IRQ_ENABLED);
+ gf_iowrite32(1, base + TIMER_IRQ_ENABLED);
else
- writel(0, base + TIMER_IRQ_ENABLED);
+ gf_iowrite32(0, base + TIMER_IRQ_ENABLED);
return 0;
}
@@ -110,7 +100,7 @@ static irqreturn_t goldfish_rtc_interrupt(int irq, void *dev_id)
struct goldfish_rtc *rtcdrv = dev_id;
void __iomem *base = rtcdrv->base;
- writel(1, base + TIMER_CLEAR_INTERRUPT);
+ gf_iowrite32(1, base + TIMER_CLEAR_INTERRUPT);
rtc_update_irq(rtcdrv->rtc, 1, RTC_IRQF | RTC_AF);
@@ -128,8 +118,8 @@ static int goldfish_rtc_read_time(struct device *dev, struct rtc_time *tm)
rtcdrv = dev_get_drvdata(dev);
base = rtcdrv->base;
- time_low = readl(base + TIMER_TIME_LOW);
- time_high = readl(base + TIMER_TIME_HIGH);
+ time_low = gf_ioread32(base + TIMER_TIME_LOW);
+ time_high = gf_ioread32(base + TIMER_TIME_HIGH);
time = (time_high << 32) | time_low;
do_div(time, NSEC_PER_SEC);
@@ -149,8 +139,8 @@ static int goldfish_rtc_set_time(struct device *dev, struct rtc_time *tm)
base = rtcdrv->base;
now64 = rtc_tm_to_time64(tm) * NSEC_PER_SEC;
- writel((now64 >> 32), base + TIMER_TIME_HIGH);
- writel(now64, base + TIMER_TIME_LOW);
+ gf_iowrite32((now64 >> 32), base + TIMER_TIME_HIGH);
+ gf_iowrite32(now64, base + TIMER_TIME_LOW);
return 0;
}
diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c
index ad13532e92fe25..9e8ccb8ed6d694 100644
--- a/drivers/tty/goldfish.c
+++ b/drivers/tty/goldfish.c
@@ -61,13 +61,13 @@ static void do_rw_io(struct goldfish_tty *qtty,
spin_lock_irqsave(&qtty->lock, irq_flags);
gf_write_ptr((void *)address, base + GOLDFISH_TTY_REG_DATA_PTR,
base + GOLDFISH_TTY_REG_DATA_PTR_HIGH);
- __raw_writel(count, base + GOLDFISH_TTY_REG_DATA_LEN);
+ gf_iowrite32(count, base + GOLDFISH_TTY_REG_DATA_LEN);
if (is_write)
- __raw_writel(GOLDFISH_TTY_CMD_WRITE_BUFFER,
+ gf_iowrite32(GOLDFISH_TTY_CMD_WRITE_BUFFER,
base + GOLDFISH_TTY_REG_CMD);
else
- __raw_writel(GOLDFISH_TTY_CMD_READ_BUFFER,
+ gf_iowrite32(GOLDFISH_TTY_CMD_READ_BUFFER,
base + GOLDFISH_TTY_REG_CMD);
spin_unlock_irqrestore(&qtty->lock, irq_flags);
@@ -142,7 +142,7 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id)
unsigned char *buf;
u32 count;
- count = __raw_readl(base + GOLDFISH_TTY_REG_BYTES_READY);
+ count = gf_ioread32(base + GOLDFISH_TTY_REG_BYTES_READY);
if (count == 0)
return IRQ_NONE;
@@ -159,7 +159,7 @@ static int goldfish_tty_activate(struct tty_port *port, struct tty_struct *tty)
{
struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,
port);
- __raw_writel(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
+ gf_iowrite32(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
return 0;
}
@@ -167,7 +167,7 @@ static void goldfish_tty_shutdown(struct tty_port *port)
{
struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,
port);
- __raw_writel(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
+ gf_iowrite32(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
}
static int goldfish_tty_open(struct tty_struct *tty, struct file *filp)
@@ -202,7 +202,7 @@ static unsigned int goldfish_tty_chars_in_buffer(struct tty_struct *tty)
{
struct goldfish_tty *qtty = &goldfish_ttys[tty->index];
void __iomem *base = qtty->base;
- return __raw_readl(base + GOLDFISH_TTY_REG_BYTES_READY);
+ return gf_ioread32(base + GOLDFISH_TTY_REG_BYTES_READY);
}
static void goldfish_tty_console_write(struct console *co, const char *b,
@@ -355,7 +355,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
* on Ranchu emulator (qemu2) returns 1 here and
* driver will use physical addresses.
*/
- qtty->version = __raw_readl(base + GOLDFISH_TTY_REG_VERSION);
+ qtty->version = gf_ioread32(base + GOLDFISH_TTY_REG_VERSION);
/*
* Goldfish TTY device on Ranchu emulator (qemu2)
@@ -374,7 +374,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
}
}
- __raw_writel(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD);
+ gf_iowrite32(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD);
ret = request_irq(irq, goldfish_tty_interrupt, IRQF_SHARED,
"goldfish_tty", qtty);
@@ -436,7 +436,7 @@ static int goldfish_tty_remove(struct platform_device *pdev)
#ifdef CONFIG_GOLDFISH_TTY_EARLY_CONSOLE
static void gf_early_console_putchar(struct uart_port *port, unsigned char ch)
{
- __raw_writel(ch, port->membase);
+ gf_iowrite32(ch, port->membase);
}
static void gf_early_write(struct console *con, const char *s, unsigned int n)
diff --git a/include/clocksource/timer-goldfish.h b/include/clocksource/timer-goldfish.h
new file mode 100644
index 00000000000000..05a3a4f610d6f8
--- /dev/null
+++ b/include/clocksource/timer-goldfish.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * goldfish-timer clocksource
+ * Registers definition for the goldfish-timer device
+ */
+
+#ifndef _CLOCKSOURCE_TIMER_GOLDFISH_H
+#define _CLOCKSOURCE_TIMER_GOLDFISH_H
+
+/*
+ * TIMER_TIME_LOW get low bits of current time and update TIMER_TIME_HIGH
+ * TIMER_TIME_HIGH get high bits of time at last TIMER_TIME_LOW read
+ * TIMER_ALARM_LOW set low bits of alarm and activate it
+ * TIMER_ALARM_HIGH set high bits of next alarm
+ * TIMER_IRQ_ENABLED enable alarm interrupt
+ * TIMER_CLEAR_ALARM disarm an existing alarm
+ * TIMER_ALARM_STATUS alarm status (running or not)
+ * TIMER_CLEAR_INTERRUPT clear interrupt
+ */
+#define TIMER_TIME_LOW 0x00
+#define TIMER_TIME_HIGH 0x04
+#define TIMER_ALARM_LOW 0x08
+#define TIMER_ALARM_HIGH 0x0c
+#define TIMER_IRQ_ENABLED 0x10
+#define TIMER_CLEAR_ALARM 0x14
+#define TIMER_ALARM_STATUS 0x18
+#define TIMER_CLEAR_INTERRUPT 0x1c
+
+extern int goldfish_timer_init(int irq, void __iomem *base);
+
+#endif /* _CLOCKSOURCE_TIMER_GOLDFISH_H */
diff --git a/include/linux/goldfish.h b/include/linux/goldfish.h
index 12be1601fd845c..bcc17f95b90667 100644
--- a/include/linux/goldfish.h
+++ b/include/linux/goldfish.h
@@ -8,14 +8,21 @@
/* Helpers for Goldfish virtual platform */
+#ifndef gf_ioread32
+#define gf_ioread32 ioread32
+#endif
+#ifndef gf_iowrite32
+#define gf_iowrite32 iowrite32
+#endif
+
static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
void __iomem *porth)
{
const unsigned long addr = (unsigned long)ptr;
- __raw_writel(lower_32_bits(addr), portl);
+ gf_iowrite32(lower_32_bits(addr), portl);
#ifdef CONFIG_64BIT
- __raw_writel(upper_32_bits(addr), porth);
+ gf_iowrite32(upper_32_bits(addr), porth);
#endif
}
@@ -23,9 +30,9 @@ static inline void gf_write_dma_addr(const dma_addr_t addr,
void __iomem *portl,
void __iomem *porth)
{
- __raw_writel(lower_32_bits(addr), portl);
+ gf_iowrite32(lower_32_bits(addr), portl);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
- __raw_writel(upper_32_bits(addr), porth);
+ gf_iowrite32(upper_32_bits(addr), porth);
#endif
}