* [PR PATCH] linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels
@ 2019-07-13 14:11 voidlinux-github
2019-07-13 14:11 ` voidlinux-github
2019-07-14 10:53 ` [PR PATCH] [Merged]: " voidlinux-github
0 siblings, 2 replies; 3+ messages in thread
From: voidlinux-github @ 2019-07-13 14:11 UTC (permalink / raw)
To: ml
[-- Attachment #1: Type: text/plain, Size: 1460 bytes --]
There is a new pull request by q66 against master on the void-packages repository
https://github.com/void-ppc/void-packages linux-4k
https://github.com/void-linux/void-packages/pull/13088
linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels
Previously the kernels were using 64kB pages. This is only supported in hardware from POWER8 onwards (so older platforms needed to emulate it) and was done mostly because of compatibility with other ppc64le distros, which typically default to 64k (because of targeting servers). However, turns out most of these compatibility issues were a non-concern (64kB VM guests work fine on 4kB hosts, qt5-webengine still works despite hardcoding 64kB (probably just uses a bit of extra memory), my ext4 filesystems still mount, and I haven't noticed any other troubles.
Using 4kB pages is much better suited for desktops (the only workloads benefiting from 64kB are exclusively server ones, there isn't a lot of them, and the difference is minimal; these servers also usually have lots of RAM) and is generally the saner and more compatible with the rest of the world option. Drivers also like them better (like Nouveau on newer graphics cards), it makes using guard pages possible, wastes less system memory, etc.
People who wish to use 64kB pages can compile their own kernel, no point in shipping a variant.
A patch file from https://github.com/void-linux/void-packages/pull/13088.patch is attached
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: github-pr-linux-4k-13088.patch --]
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From 9c63ef64062c9a3af1443894a01da024854061a7 Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Sat, 13 Jul 2019 15:56:19 +0200
Subject: [PATCH 1/3] linux4.19: use 4k pages for ppc64*
---
srcpkgs/linux4.19/files/ppc64-dotconfig | 26 +++++++++++------------
srcpkgs/linux4.19/files/ppc64le-dotconfig | 26 +++++++++++------------
2 files changed, 24 insertions(+), 28 deletions(-)
diff --git a/srcpkgs/linux4.19/files/ppc64-dotconfig b/srcpkgs/linux4.19/files/ppc64-dotconfig
index 5225900530f..cf936f563ef 100644
--- a/srcpkgs/linux4.19/files/ppc64-dotconfig
+++ b/srcpkgs/linux4.19/files/ppc64-dotconfig
@@ -1,13 +1,13 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/powerpc 4.19.50 Kernel Configuration
+# Linux/powerpc 4.19.58 Kernel Configuration
#
#
-# Compiler: powerpc64-linux-gnu-gcc (GCC) 8.3.0
+# Compiler: gcc (GCC) 9.1.0
#
CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=80300
+CONFIG_GCC_VERSION=90100
CONFIG_CLANG_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_IRQ_WORK=y
@@ -250,10 +250,10 @@ CONFIG_CPU_BIG_ENDIAN=y
# CONFIG_CPU_LITTLE_ENDIAN is not set
CONFIG_64BIT=y
CONFIG_MMU=y
-CONFIG_ARCH_MMAP_RND_BITS_MAX=29
-CONFIG_ARCH_MMAP_RND_BITS_MIN=14
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=13
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=7
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NR_IRQS=512
@@ -304,7 +304,6 @@ CONFIG_SCOM_DEBUGFS=y
CONFIG_PPC_POWERNV=y
CONFIG_OPAL_PRD=m
CONFIG_PPC_MEMTRACE=y
-CONFIG_PPC_VAS=y
CONFIG_PPC_PSERIES=y
CONFIG_PPC_SPLPAR=y
CONFIG_DTL=y
@@ -476,11 +475,10 @@ CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_ILLEGAL_POINTER_VALUE=0x5deadbeef0000000
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_NODES_SPAN_OTHER_NODES=y
-# CONFIG_PPC_4K_PAGES is not set
-CONFIG_PPC_64K_PAGES=y
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC_64K_PAGES is not set
CONFIG_THREAD_SHIFT=14
-CONFIG_FORCE_MAX_ZONEORDER=9
-CONFIG_PPC_SUBPAGE_PROT=y
+CONFIG_FORCE_MAX_ZONEORDER=13
CONFIG_PPC_COPRO_BASE=y
CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
@@ -708,7 +706,7 @@ CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND=y
CONFIG_COMPAT_OLD_SIGACTION=y
@@ -3311,6 +3309,7 @@ CONFIG_IEEE802154_ATUSB=m
CONFIG_IEEE802154_ADF7242=m
# CONFIG_IEEE802154_MCR20A is not set
CONFIG_IEEE802154_HWSIM=m
+# CONFIG_VMXNET3 is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
@@ -8426,7 +8425,6 @@ CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=y
CONFIG_CRYPTO_DEV_NX_COMPRESS=m
CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES=m
-CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV=m
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
diff --git a/srcpkgs/linux4.19/files/ppc64le-dotconfig b/srcpkgs/linux4.19/files/ppc64le-dotconfig
index 35b32fca84b..778b9da2b95 100644
--- a/srcpkgs/linux4.19/files/ppc64le-dotconfig
+++ b/srcpkgs/linux4.19/files/ppc64le-dotconfig
@@ -1,13 +1,13 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/powerpc 4.19.50 Kernel Configuration
+# Linux/powerpc 4.19.58 Kernel Configuration
#
#
-# Compiler: powerpc64le-linux-gnu-gcc (GCC) 8.3.0
+# Compiler: gcc (GCC) 9.1.0
#
CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=80300
+CONFIG_GCC_VERSION=90100
CONFIG_CLANG_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_IRQ_WORK=y
@@ -246,10 +246,10 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_PPC64_BOOT_WRAPPER=y
CONFIG_64BIT=y
CONFIG_MMU=y
-CONFIG_ARCH_MMAP_RND_BITS_MAX=29
-CONFIG_ARCH_MMAP_RND_BITS_MIN=14
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=13
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=7
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NR_IRQS=512
@@ -296,7 +296,6 @@ CONFIG_SCOM_DEBUGFS=y
CONFIG_PPC_POWERNV=y
CONFIG_OPAL_PRD=m
CONFIG_PPC_MEMTRACE=y
-CONFIG_PPC_VAS=y
CONFIG_PPC_PSERIES=y
CONFIG_PPC_SPLPAR=y
CONFIG_DTL=y
@@ -409,11 +408,10 @@ CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_ILLEGAL_POINTER_VALUE=0x5deadbeef0000000
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_NODES_SPAN_OTHER_NODES=y
-# CONFIG_PPC_4K_PAGES is not set
-CONFIG_PPC_64K_PAGES=y
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC_64K_PAGES is not set
CONFIG_THREAD_SHIFT=14
-CONFIG_FORCE_MAX_ZONEORDER=9
-CONFIG_PPC_SUBPAGE_PROT=y
+CONFIG_FORCE_MAX_ZONEORDER=13
CONFIG_PPC_COPRO_BASE=y
CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
@@ -624,7 +622,7 @@ CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND=y
@@ -3163,6 +3161,7 @@ CONFIG_IEEE802154_ATUSB=m
CONFIG_IEEE802154_ADF7242=m
# CONFIG_IEEE802154_MCR20A is not set
CONFIG_IEEE802154_HWSIM=m
+# CONFIG_VMXNET3 is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
@@ -8183,7 +8182,6 @@ CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_COMPRESS=m
CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES=m
-CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV=m
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
From 14f5a4bd37b4cf9f06aa523d24c4181fbdad743c Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Sat, 13 Jul 2019 04:43:56 +0200
Subject: [PATCH 2/3] linux5.1: use 4k pages for ppc64*
---
srcpkgs/linux5.1/files/ppc64-dotconfig | 32 +++++++++++-------------
srcpkgs/linux5.1/files/ppc64le-dotconfig | 32 +++++++++++-------------
2 files changed, 30 insertions(+), 34 deletions(-)
diff --git a/srcpkgs/linux5.1/files/ppc64-dotconfig b/srcpkgs/linux5.1/files/ppc64-dotconfig
index 7af37e6319b..215b36faeb8 100644
--- a/srcpkgs/linux5.1/files/ppc64-dotconfig
+++ b/srcpkgs/linux5.1/files/ppc64-dotconfig
@@ -1,13 +1,13 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/powerpc 5.1.9 Kernel Configuration
+# Linux/powerpc 5.1.17 Kernel Configuration
#
#
-# Compiler: powerpc64-linux-gnu-gcc (GCC) 8.3.0
+# Compiler: gcc (GCC) 9.1.0
#
CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=80300
+CONFIG_GCC_VERSION=90100
CONFIG_CLANG_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
@@ -251,10 +251,10 @@ CONFIG_CPU_BIG_ENDIAN=y
# CONFIG_CPU_LITTLE_ENDIAN is not set
CONFIG_64BIT=y
CONFIG_MMU=y
-CONFIG_ARCH_MMAP_RND_BITS_MAX=29
-CONFIG_ARCH_MMAP_RND_BITS_MIN=14
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=13
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=7
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NR_IRQS=512
@@ -303,7 +303,6 @@ CONFIG_SCOM_DEBUGFS=y
CONFIG_PPC_POWERNV=y
CONFIG_OPAL_PRD=m
CONFIG_PPC_MEMTRACE=y
-CONFIG_PPC_VAS=y
CONFIG_PPC_PSERIES=y
CONFIG_PPC_SPLPAR=y
CONFIG_DTL=y
@@ -476,14 +475,13 @@ CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_ILLEGAL_POINTER_VALUE=0x5deadbeef0000000
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_NODES_SPAN_OTHER_NODES=y
-# CONFIG_PPC_4K_PAGES is not set
-CONFIG_PPC_64K_PAGES=y
-CONFIG_PPC_PAGE_SHIFT=16
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC_64K_PAGES is not set
+CONFIG_PPC_PAGE_SHIFT=12
CONFIG_THREAD_SHIFT=14
-CONFIG_ETEXT_SHIFT=16
-CONFIG_DATA_SHIFT=16
-CONFIG_FORCE_MAX_ZONEORDER=9
-CONFIG_PPC_SUBPAGE_PROT=y
+CONFIG_ETEXT_SHIFT=12
+CONFIG_DATA_SHIFT=12
+CONFIG_FORCE_MAX_ZONEORDER=13
CONFIG_PPC_COPRO_BASE=y
CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
@@ -613,7 +611,7 @@ CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
CONFIG_HAVE_ARCH_NVRAM_OPS=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND=y
@@ -3324,6 +3322,7 @@ CONFIG_IEEE802154_ATUSB=m
CONFIG_IEEE802154_ADF7242=m
# CONFIG_IEEE802154_MCR20A is not set
CONFIG_IEEE802154_HWSIM=m
+# CONFIG_VMXNET3 is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
@@ -8513,7 +8512,6 @@ CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=y
CONFIG_CRYPTO_DEV_NX_COMPRESS=m
CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES=m
-CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV=m
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
diff --git a/srcpkgs/linux5.1/files/ppc64le-dotconfig b/srcpkgs/linux5.1/files/ppc64le-dotconfig
index 5d6303bfc59..7658ca252f6 100644
--- a/srcpkgs/linux5.1/files/ppc64le-dotconfig
+++ b/srcpkgs/linux5.1/files/ppc64le-dotconfig
@@ -1,13 +1,13 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/powerpc 5.1.9 Kernel Configuration
+# Linux/powerpc 5.1.17 Kernel Configuration
#
#
-# Compiler: powerpc64le-linux-gnu-gcc (GCC) 8.3.0
+# Compiler: gcc (GCC) 9.1.0
#
CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=80300
+CONFIG_GCC_VERSION=90100
CONFIG_CLANG_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
@@ -247,10 +247,10 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_PPC64_BOOT_WRAPPER=y
CONFIG_64BIT=y
CONFIG_MMU=y
-CONFIG_ARCH_MMAP_RND_BITS_MAX=29
-CONFIG_ARCH_MMAP_RND_BITS_MIN=14
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=13
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=7
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NR_IRQS=512
@@ -295,7 +295,6 @@ CONFIG_SCOM_DEBUGFS=y
CONFIG_PPC_POWERNV=y
CONFIG_OPAL_PRD=m
CONFIG_PPC_MEMTRACE=y
-CONFIG_PPC_VAS=y
CONFIG_PPC_PSERIES=y
CONFIG_PPC_SPLPAR=y
CONFIG_DTL=y
@@ -409,14 +408,13 @@ CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_ILLEGAL_POINTER_VALUE=0x5deadbeef0000000
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_NODES_SPAN_OTHER_NODES=y
-# CONFIG_PPC_4K_PAGES is not set
-CONFIG_PPC_64K_PAGES=y
-CONFIG_PPC_PAGE_SHIFT=16
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC_64K_PAGES is not set
+CONFIG_PPC_PAGE_SHIFT=12
CONFIG_THREAD_SHIFT=14
-CONFIG_ETEXT_SHIFT=16
-CONFIG_DATA_SHIFT=16
-CONFIG_FORCE_MAX_ZONEORDER=9
-CONFIG_PPC_SUBPAGE_PROT=y
+CONFIG_ETEXT_SHIFT=12
+CONFIG_DATA_SHIFT=12
+CONFIG_FORCE_MAX_ZONEORDER=13
CONFIG_PPC_COPRO_BASE=y
CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
@@ -547,7 +545,7 @@ CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_HAVE_ARCH_NVRAM_OPS=y
CONFIG_CLONE_BACKWARDS=y
@@ -3182,6 +3180,7 @@ CONFIG_IEEE802154_ATUSB=m
CONFIG_IEEE802154_ADF7242=m
# CONFIG_IEEE802154_MCR20A is not set
CONFIG_IEEE802154_HWSIM=m
+# CONFIG_VMXNET3 is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
@@ -8276,7 +8275,6 @@ CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_COMPRESS=m
CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES=m
-CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV=m
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
From ebc4fe87e0f85f35c85c429d7779986ade703ea4 Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Sat, 13 Jul 2019 16:00:25 +0200
Subject: [PATCH 3/3] linux5.2: use 4k pages for ppc64*
[ci skip]
---
srcpkgs/linux5.2/files/ppc64-dotconfig | 28 +++++++++++-------------
srcpkgs/linux5.2/files/ppc64le-dotconfig | 28 +++++++++++-------------
2 files changed, 26 insertions(+), 30 deletions(-)
diff --git a/srcpkgs/linux5.2/files/ppc64-dotconfig b/srcpkgs/linux5.2/files/ppc64-dotconfig
index 42071fea3a8..97981613d6e 100644
--- a/srcpkgs/linux5.2/files/ppc64-dotconfig
+++ b/srcpkgs/linux5.2/files/ppc64-dotconfig
@@ -4,7 +4,7 @@
#
#
-# Compiler: powerpc64-linux-musl-gcc (GCC) 9.1.0
+# Compiler: gcc (GCC) 9.1.0
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=90100
@@ -271,10 +271,10 @@ CONFIG_CPU_BIG_ENDIAN=y
# CONFIG_CPU_LITTLE_ENDIAN is not set
CONFIG_64BIT=y
CONFIG_MMU=y
-CONFIG_ARCH_MMAP_RND_BITS_MAX=29
-CONFIG_ARCH_MMAP_RND_BITS_MIN=14
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=13
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=7
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NR_IRQS=512
@@ -323,7 +323,6 @@ CONFIG_SCOM_DEBUGFS=y
CONFIG_PPC_POWERNV=y
CONFIG_OPAL_PRD=m
CONFIG_PPC_MEMTRACE=y
-CONFIG_PPC_VAS=y
CONFIG_PPC_PSERIES=y
CONFIG_PPC_SPLPAR=y
CONFIG_DTL=y
@@ -508,14 +507,13 @@ CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_ILLEGAL_POINTER_VALUE=0x5deadbeef0000000
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_NODES_SPAN_OTHER_NODES=y
-# CONFIG_PPC_4K_PAGES is not set
-CONFIG_PPC_64K_PAGES=y
-CONFIG_PPC_PAGE_SHIFT=16
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC_64K_PAGES is not set
+CONFIG_PPC_PAGE_SHIFT=12
CONFIG_THREAD_SHIFT=14
-CONFIG_ETEXT_SHIFT=16
-CONFIG_DATA_SHIFT=16
-CONFIG_FORCE_MAX_ZONEORDER=9
-CONFIG_PPC_SUBPAGE_PROT=y
+CONFIG_ETEXT_SHIFT=12
+CONFIG_DATA_SHIFT=12
+CONFIG_FORCE_MAX_ZONEORDER=13
CONFIG_PPC_COPRO_BASE=y
CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
@@ -652,7 +650,7 @@ CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
CONFIG_HAVE_ARCH_NVRAM_OPS=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND=y
@@ -3471,6 +3469,7 @@ CONFIG_IEEE802154_ATUSB=m
CONFIG_IEEE802154_ADF7242=m
# CONFIG_IEEE802154_MCR20A is not set
CONFIG_IEEE802154_HWSIM=m
+# CONFIG_VMXNET3 is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
@@ -8895,7 +8894,6 @@ CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=y
CONFIG_CRYPTO_DEV_NX_COMPRESS=m
CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES=m
-CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV=m
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
diff --git a/srcpkgs/linux5.2/files/ppc64le-dotconfig b/srcpkgs/linux5.2/files/ppc64le-dotconfig
index b30b822a095..db144ff51af 100644
--- a/srcpkgs/linux5.2/files/ppc64le-dotconfig
+++ b/srcpkgs/linux5.2/files/ppc64le-dotconfig
@@ -4,7 +4,7 @@
#
#
-# Compiler: powerpc64le-linux-musl-gcc (GCC) 9.1.0
+# Compiler: gcc (GCC) 9.1.0
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=90100
@@ -267,10 +267,10 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_PPC64_BOOT_WRAPPER=y
CONFIG_64BIT=y
CONFIG_MMU=y
-CONFIG_ARCH_MMAP_RND_BITS_MAX=29
-CONFIG_ARCH_MMAP_RND_BITS_MIN=14
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=13
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=7
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NR_IRQS=512
@@ -315,7 +315,6 @@ CONFIG_SCOM_DEBUGFS=y
CONFIG_PPC_POWERNV=y
CONFIG_OPAL_PRD=m
CONFIG_PPC_MEMTRACE=y
-CONFIG_PPC_VAS=y
CONFIG_PPC_PSERIES=y
CONFIG_PPC_SPLPAR=y
CONFIG_DTL=y
@@ -435,14 +434,13 @@ CONFIG_SYS_SUPPORTS_HUGETLBFS=y
CONFIG_ILLEGAL_POINTER_VALUE=0x5deadbeef0000000
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_NODES_SPAN_OTHER_NODES=y
-# CONFIG_PPC_4K_PAGES is not set
-CONFIG_PPC_64K_PAGES=y
-CONFIG_PPC_PAGE_SHIFT=16
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC_64K_PAGES is not set
+CONFIG_PPC_PAGE_SHIFT=12
CONFIG_THREAD_SHIFT=14
-CONFIG_ETEXT_SHIFT=16
-CONFIG_DATA_SHIFT=16
-CONFIG_FORCE_MAX_ZONEORDER=9
-CONFIG_PPC_SUBPAGE_PROT=y
+CONFIG_ETEXT_SHIFT=12
+CONFIG_DATA_SHIFT=12
+CONFIG_FORCE_MAX_ZONEORDER=13
CONFIG_PPC_COPRO_BASE=y
CONFIG_SCHED_SMT=y
CONFIG_PPC_DENORMALISATION=y
@@ -580,7 +578,7 @@ CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
-CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_HAVE_ARCH_NVRAM_OPS=y
CONFIG_CLONE_BACKWARDS=y
@@ -3321,6 +3319,7 @@ CONFIG_IEEE802154_ATUSB=m
CONFIG_IEEE802154_ADF7242=m
# CONFIG_IEEE802154_MCR20A is not set
CONFIG_IEEE802154_HWSIM=m
+# CONFIG_VMXNET3 is not set
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set
@@ -8649,7 +8648,6 @@ CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_COMPRESS=m
CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES=m
-CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV=m
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels
2019-07-13 14:11 [PR PATCH] linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels voidlinux-github
@ 2019-07-13 14:11 ` voidlinux-github
2019-07-14 10:53 ` [PR PATCH] [Merged]: " voidlinux-github
1 sibling, 0 replies; 3+ messages in thread
From: voidlinux-github @ 2019-07-13 14:11 UTC (permalink / raw)
To: ml
[-- Attachment #1: Type: text/plain, Size: 183 bytes --]
New comment by q66 on void-packages repository
https://github.com/void-linux/void-packages/pull/13088#issuecomment-511125100
Comment:
@pullmoll feel free to give this a shot also :)
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PR PATCH] [Merged]: linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels
2019-07-13 14:11 [PR PATCH] linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels voidlinux-github
2019-07-13 14:11 ` voidlinux-github
@ 2019-07-14 10:53 ` voidlinux-github
1 sibling, 0 replies; 3+ messages in thread
From: voidlinux-github @ 2019-07-14 10:53 UTC (permalink / raw)
To: ml
[-- Attachment #1: Type: text/plain, Size: 1310 bytes --]
There's a merged pull request on the void-packages repository
linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels
https://github.com/void-linux/void-packages/pull/13088
Description: Previously the kernels were using 64kB pages. This is only supported in hardware from POWER8 onwards (so older platforms needed to emulate it) and was done mostly because of compatibility with other ppc64le distros, which typically default to 64k (because of targeting servers). However, turns out most of these compatibility issues were a non-concern (64kB VM guests work fine on 4kB hosts, qt5-webengine still works despite hardcoding 64kB (probably just uses a bit of extra memory), my ext4 filesystems still mount, and I haven't noticed any other troubles.
Using 4kB pages is much better suited for desktops (the only workloads benefiting from 64kB are exclusively server ones, there isn't a lot of them, and the difference is minimal; these servers also usually have lots of RAM) and is generally the saner and more compatible with the rest of the world option. Drivers also like them better (like Nouveau on newer graphics cards), it makes using guard pages possible, wastes less system memory, etc.
People who wish to use 64kB pages can compile their own kernel, no point in shipping a variant.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-07-14 10:53 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-07-13 14:11 [PR PATCH] linux4.19, linux5.1, linux5.2: use 4kB pages in ppc64/ppc64le kernels voidlinux-github
2019-07-13 14:11 ` voidlinux-github
2019-07-14 10:53 ` [PR PATCH] [Merged]: " voidlinux-github
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