Create 5.12 branch and add genpatches

Support for namespace user.pax.* on tmpfs.
Enable link security restrictions by default.
Bluetooth: Check key sizes only when Secure Simple Pairing
is enabled. See bug #686758
tmp513 requies REGMAP_I2C to build.  Select it by default in
Kconfig. See bug #710790. Thanks to Phil Stracchino
sign-file: full functionality with modern LibreSSL
Add Gentoo Linux support config settings and defaults.

Signed-off-by: Mike Pagano <mpagano@gentoo.org>

6 files changed, 864 insertions, 0 deletions

diff --git a/0000_README b/0000_README
index 90189932..e856f622 100644
--- a/0000_README
+++ b/0000_README
@@ -43,6 +43,26 @@ EXPERIMENTAL
 Individual Patch Descriptions:
 --------------------------------------------------------------------------
 
+Patch:  1500_XATTR_USER_PREFIX.patch
+From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
+Desc:   Support for namespace user.pax.* on tmpfs.
+
+Patch:  2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
+From:   https://lore.kernel.org/linux-bluetooth/20190522070540.48895-1-marcel@holtmann.org/raw
+Desc:   Bluetooth: Check key sizes only when Secure Simple Pairing is enabled. See bug #686758
+
+Patch:  2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch
+From:   https://bugs.gentoo.org/710790
+Desc:   tmp513 requies REGMAP_I2C to build.  Select it by default in Kconfig. See bug #710790. Thanks to Phil Stracchino
+
+Patch:  2920_sign-file-patch-for-libressl.patch
+From:   https://bugs.gentoo.org/717166
+Desc:   sign-file: full functionality with modern LibreSSL
+
 Patch:  4567_distro-Gentoo-Kconfig.patch
 From:   Tom Wijsman <TomWij@gentoo.org>
 Desc:   Add Gentoo Linux support config settings and defaults.
+
+Patch:  5013_enable-cpu-optimizations-for-gcc10.patch
+From:   https://github.com/graysky2/kernel_gcc_patch/
+Desc:   Kernel patch enables gcc = v10.1+ optimizations for additional CPUs.
diff --git a/1500_XATTR_USER_PREFIX.patch b/1500_XATTR_USER_PREFIX.patch
new file mode 100644
index 00000000..245dcc29
--- /dev/null
+++ b/1500_XATTR_USER_PREFIX.patch
@@ -0,0 +1,67 @@
+From: Anthony G. Basile <blueness@gentoo.org>
+
+This patch adds support for a restricted user-controlled namespace on
+tmpfs filesystem used to house PaX flags.  The namespace must be of the
+form user.pax.* and its value cannot exceed a size of 8 bytes.
+
+This is needed even on all Gentoo systems so that XATTR_PAX flags
+are preserved for users who might build packages using portage on
+a tmpfs system with a non-hardened kernel and then switch to a
+hardened kernel with XATTR_PAX enabled.
+
+The namespace is added to any user with Extended Attribute support
+enabled for tmpfs.  Users who do not enable xattrs will not have
+the XATTR_PAX flags preserved.
+
+diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
+index 1590c49..5eab462 100644
+--- a/include/uapi/linux/xattr.h
++++ b/include/uapi/linux/xattr.h
+@@ -73,5 +73,9 @@
+ #define XATTR_POSIX_ACL_DEFAULT  "posix_acl_default"
+ #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
+ 
++/* User namespace */
++#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
++#define XATTR_PAX_FLAGS_SUFFIX "flags"
++#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
+ 
+ #endif /* _UAPI_LINUX_XATTR_H */
+--- a/mm/shmem.c	2020-05-04 15:30:27.042035334 -0400
++++ b/mm/shmem.c	2020-05-04 15:34:57.013881725 -0400
+@@ -3238,6 +3238,14 @@ static int shmem_xattr_handler_set(const
+ 	struct shmem_inode_info *info = SHMEM_I(inode);
+ 
+ 	name = xattr_full_name(handler, name);
++
++	if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
++		if (strcmp(name, XATTR_NAME_PAX_FLAGS))
++			return -EOPNOTSUPP;
++		if (size > 8)
++			return -EINVAL;
++	}
++
+ 	return simple_xattr_set(&info->xattrs, name, value, size, flags, NULL);
+ }
+ 
+@@ -3253,6 +3261,12 @@ static const struct xattr_handler shmem_
+ 	.set = shmem_xattr_handler_set,
+ };
+ 
++static const struct xattr_handler shmem_user_xattr_handler = {
++	.prefix = XATTR_USER_PREFIX,
++	.get = shmem_xattr_handler_get,
++	.set = shmem_xattr_handler_set,
++};
++
+ static const struct xattr_handler *shmem_xattr_handlers[] = {
+ #ifdef CONFIG_TMPFS_POSIX_ACL
+ 	&posix_acl_access_xattr_handler,
+@@ -3260,6 +3274,7 @@ static const struct xattr_handler *shmem
+ #endif
+ 	&shmem_security_xattr_handler,
+ 	&shmem_trusted_xattr_handler,
++	&shmem_user_xattr_handler,
+ 	NULL
+ };
+ 
diff --git a/2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch b/2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
new file mode 100644
index 00000000..394ad48f
--- /dev/null
+++ b/2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch
@@ -0,0 +1,37 @@
+The encryption is only mandatory to be enforced when both sides are using
+Secure Simple Pairing and this means the key size check makes only sense
+in that case.
+
+On legacy Bluetooth 2.0 and earlier devices like mice the encryption was
+optional and thus causing an issue if the key size check is not bound to
+using Secure Simple Pairing.
+
+Fixes: d5bb334a8e17 ("Bluetooth: Align minimum encryption key size for LE and BR/EDR connections")
+Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
+Cc: stable@vger.kernel.org
+---
+ net/bluetooth/hci_conn.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
+index 3cf0764d5793..7516cdde3373 100644
+--- a/net/bluetooth/hci_conn.c
++++ b/net/bluetooth/hci_conn.c
+@@ -1272,8 +1272,13 @@ int hci_conn_check_link_mode(struct hci_conn *conn)
+ 			return 0;
+ 	}
+ 
+-	if (hci_conn_ssp_enabled(conn) &&
+-	    !test_bit(HCI_CONN_ENCRYPT, &conn->flags))
++	/* If Secure Simple Pairing is not enabled, then legacy connection
++	 * setup is used and no encryption or key sizes can be enforced.
++	 */
++	if (!hci_conn_ssp_enabled(conn))
++		return 1;
++
++	if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
+ 		return 0;
+ 
+ 	/* The minimum encryption key size needs to be enforced by the
+-- 
+2.20.1
diff --git a/2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch b/2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch
new file mode 100644
index 00000000..43356857
--- /dev/null
+++ b/2900_tmp513-Fix-build-issue-by-selecting-CONFIG_REG.patch
@@ -0,0 +1,30 @@
+From dc328d75a6f37f4ff11a81ae16b1ec88c3197640 Mon Sep 17 00:00:00 2001
+From: Mike Pagano <mpagano@gentoo.org>
+Date: Mon, 23 Mar 2020 08:20:06 -0400
+Subject: [PATCH 1/1] This driver requires REGMAP_I2C to build.  Select it by
+ default in Kconfig. Reported at gentoo bugzilla:
+ https://bugs.gentoo.org/710790
+Cc: mpagano@gentoo.org
+
+Reported-by: Phil Stracchino <phils@caerllewys.net>
+
+Signed-off-by: Mike Pagano <mpagano@gentoo.org>
+---
+ drivers/hwmon/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
+index 47ac20aee06f..530b4f29ba85 100644
+--- a/drivers/hwmon/Kconfig
++++ b/drivers/hwmon/Kconfig
+@@ -1769,6 +1769,7 @@ config SENSORS_TMP421
+ config SENSORS_TMP513
+ 	tristate "Texas Instruments TMP513 and compatibles"
+ 	depends on I2C
++	select REGMAP_I2C
+ 	help
+ 	  If you say yes here you get support for Texas Instruments TMP512,
+ 	  and TMP513 temperature and power supply sensor chips.
+-- 
+2.24.1
+
diff --git a/2920_sign-file-patch-for-libressl.patch b/2920_sign-file-patch-for-libressl.patch
new file mode 100644
index 00000000..e6ec017d
--- /dev/null
+++ b/2920_sign-file-patch-for-libressl.patch
@@ -0,0 +1,16 @@
+--- a/scripts/sign-file.c	2020-05-20 18:47:21.282820662 -0400
++++ b/scripts/sign-file.c	2020-05-20 18:48:37.991081899 -0400
+@@ -41,9 +41,10 @@
+  * signing with anything other than SHA1 - so we're stuck with that if such is
+  * the case.
+  */
+-#if defined(LIBRESSL_VERSION_NUMBER) || \
+-	OPENSSL_VERSION_NUMBER < 0x10000000L || \
+-	defined(OPENSSL_NO_CMS)
++#if defined(OPENSSL_NO_CMS) || \
++	( defined(LIBRESSL_VERSION_NUMBER) \
++	&& (LIBRESSL_VERSION_NUMBER < 0x3010000fL) ) || \
++	OPENSSL_VERSION_NUMBER < 0x10000000L
+ #define USE_PKCS7
+ #endif
+ #ifndef USE_PKCS7
diff --git a/5013_enable-cpu-optimizations-for-gcc10.patch b/5013_enable-cpu-optimizations-for-gcc10.patch
new file mode 100644
index 00000000..0fc0a644
--- /dev/null
+++ b/5013_enable-cpu-optimizations-for-gcc10.patch
@@ -0,0 +1,694 @@
+From 4666424a864159b4de572c90adb2c3e1fcdd5890 Mon Sep 17 00:00:00 2001
+From: graysky <graysky@archlinux.us>
+Date: Fri, 13 Nov 2020 15:45:08 -0500
+Subject: [PATCH] 
+ enable_additional_cpu_optimizations_for_gcc_v10.1+_kernel_v5.8+.patch
+
+WARNING
+This patch works with gcc versions 10.1+ and with kernel version 5.8+ and should
+NOT be applied when compiling on older versions of gcc due to key name changes
+of the march flags introduced with the version 4.9 release of gcc.[1]
+
+Use the older version of this patch hosted on the same github for older
+versions of gcc.
+
+FEATURES
+This patch adds additional CPU options to the Linux kernel accessible under:
+ Processor type and features  --->
+  Processor family --->
+
+The expanded microarchitectures include:
+* AMD Improved K8-family
+* AMD K10-family
+* AMD Family 10h (Barcelona)
+* AMD Family 14h (Bobcat)
+* AMD Family 16h (Jaguar)
+* AMD Family 15h (Bulldozer)
+* AMD Family 15h (Piledriver)
+* AMD Family 15h (Steamroller)
+* AMD Family 15h (Excavator)
+* AMD Family 17h (Zen)
+* AMD Family 17h (Zen 2)
+* Intel Silvermont low-power processors
+* Intel Goldmont low-power processors (Apollo Lake and Denverton)
+* Intel Goldmont Plus low-power processors (Gemini Lake)
+* Intel 1st Gen Core i3/i5/i7 (Nehalem)
+* Intel 1.5 Gen Core i3/i5/i7 (Westmere)
+* Intel 2nd Gen Core i3/i5/i7 (Sandybridge)
+* Intel 3rd Gen Core i3/i5/i7 (Ivybridge)
+* Intel 4th Gen Core i3/i5/i7 (Haswell)
+* Intel 5th Gen Core i3/i5/i7 (Broadwell)
+* Intel 6th Gen Core i3/i5/i7 (Skylake)
+* Intel 6th Gen Core i7/i9 (Skylake X)
+* Intel 8th Gen Core i3/i5/i7 (Cannon Lake)
+* Intel 10th Gen Core i7/i9 (Ice Lake)
+* Intel Xeon (Cascade Lake)
+* Intel Xeon (Cooper Lake)
+* Intel 3rd Gen 10nm++  i3/i5/i7/i9-family (Tiger Lake)
+
+It also offers to compile passing the 'native' option which, "selects the CPU
+to generate code for at compilation time by determining the processor type of
+the compiling machine. Using -march=native enables all instruction subsets
+supported by the local machine and will produce code optimized for the local
+machine under the constraints of the selected instruction set."[2]
+
+Do NOT try using the 'native' option on AMD Piledriver, Steamroller, or
+Excavator CPUs (-march=bdver{2,3,4} flag). The build will error out due the
+kernel's objtool issue with these.[3a,b]
+
+MINOR NOTES
+This patch also changes 'atom' to 'bonnell' in accordance with the gcc v4.9
+changes. Note that upstream is using the deprecated 'match=atom' flags when I
+believe it should use the newer 'march=bonnell' flag for atom processors.[4]
+
+It is not recommended to compile on Atom-CPUs with the 'native' option.[5] The
+recommendation is to use the 'atom' option instead.
+
+BENEFITS
+Small but real speed increases are measurable using a make endpoint comparing
+a generic kernel to one built with one of the respective microarchs.
+
+See the following experimental evidence supporting this statement:
+https://github.com/graysky2/kernel_gcc_patch
+
+REQUIREMENTS
+linux version >=5.8
+gcc version >=10.1
+
+ACKNOWLEDGMENTS
+This patch builds on the seminal work by Jeroen.[6]
+
+REFERENCES
+1.  https://gcc.gnu.org/gcc-4.9/changes.html
+2.  https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
+3a. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95671#c11
+3b. https://github.com/graysky2/kernel_gcc_patch/issues/55
+4.  https://bugzilla.kernel.org/show_bug.cgi?id=77461
+5.  https://github.com/graysky2/kernel_gcc_patch/issues/15
+6.  http://www.linuxforge.net/docs/linux/linux-gcc.php
+---
+ arch/x86/Kconfig.cpu            | 301 ++++++++++++++++++++++++++++----
+ arch/x86/Makefile               |  53 +++++-
+ arch/x86/Makefile_32.cpu        |  32 +++-
+ arch/x86/include/asm/vermagic.h |  56 ++++++
+ 4 files changed, 407 insertions(+), 35 deletions(-)
+
+diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
+index 814fe0d349b0..7b08e87fe797 100644
+--- a/arch/x86/Kconfig.cpu
++++ b/arch/x86/Kconfig.cpu
+@@ -123,6 +123,7 @@ config MPENTIUMM
+ config MPENTIUM4
+ 	bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon"
+ 	depends on X86_32
++	select X86_P6_NOP
+ 	help
+ 	  Select this for Intel Pentium 4 chips.  This includes the
+ 	  Pentium 4, Pentium D, P4-based Celeron and Xeon, and
+@@ -155,9 +156,8 @@ config MPENTIUM4
+ 		-Paxville
+ 		-Dempsey
+ 
+-
+ config MK6
+-	bool "K6/K6-II/K6-III"
++	bool "AMD K6/K6-II/K6-III"
+ 	depends on X86_32
+ 	help
+ 	  Select this for an AMD K6-family processor.  Enables use of
+@@ -165,7 +165,7 @@ config MK6
+ 	  flags to GCC.
+ 
+ config MK7
+-	bool "Athlon/Duron/K7"
++	bool "AMD Athlon/Duron/K7"
+ 	depends on X86_32
+ 	help
+ 	  Select this for an AMD Athlon K7-family processor.  Enables use of
+@@ -173,12 +173,90 @@ config MK7
+ 	  flags to GCC.
+ 
+ config MK8
+-	bool "Opteron/Athlon64/Hammer/K8"
++	bool "AMD Opteron/Athlon64/Hammer/K8"
+ 	help
+ 	  Select this for an AMD Opteron or Athlon64 Hammer-family processor.
+ 	  Enables use of some extended instructions, and passes appropriate
+ 	  optimization flags to GCC.
+ 
++config MK8SSE3
++	bool "AMD Opteron/Athlon64/Hammer/K8 with SSE3"
++	help
++	  Select this for improved AMD Opteron or Athlon64 Hammer-family processors.
++	  Enables use of some extended instructions, and passes appropriate
++	  optimization flags to GCC.
++
++config MK10
++	bool "AMD 61xx/7x50/PhenomX3/X4/II/K10"
++	help
++	  Select this for an AMD 61xx Eight-Core Magny-Cours, Athlon X2 7x50,
++		Phenom X3/X4/II, Athlon II X2/X3/X4, or Turion II-family processor.
++	  Enables use of some extended instructions, and passes appropriate
++	  optimization flags to GCC.
++
++config MBARCELONA
++	bool "AMD Barcelona"
++	help
++	  Select this for AMD Family 10h Barcelona processors.
++
++	  Enables -march=barcelona
++
++config MBOBCAT
++	bool "AMD Bobcat"
++	help
++	  Select this for AMD Family 14h Bobcat processors.
++
++	  Enables -march=btver1
++
++config MJAGUAR
++	bool "AMD Jaguar"
++	help
++	  Select this for AMD Family 16h Jaguar processors.
++
++	  Enables -march=btver2
++
++config MBULLDOZER
++	bool "AMD Bulldozer"
++	help
++	  Select this for AMD Family 15h Bulldozer processors.
++
++	  Enables -march=bdver1
++
++config MPILEDRIVER
++	bool "AMD Piledriver"
++	help
++	  Select this for AMD Family 15h Piledriver processors.
++
++	  Enables -march=bdver2
++
++config MSTEAMROLLER
++	bool "AMD Steamroller"
++	help
++	  Select this for AMD Family 15h Steamroller processors.
++
++	  Enables -march=bdver3
++
++config MEXCAVATOR
++	bool "AMD Excavator"
++	help
++	  Select this for AMD Family 15h Excavator processors.
++
++	  Enables -march=bdver4
++
++config MZEN
++	bool "AMD Zen"
++	help
++	  Select this for AMD Family 17h Zen processors.
++
++	  Enables -march=znver1
++
++config MZEN2
++	bool "AMD Zen 2"
++	help
++	  Select this for AMD Family 17h Zen 2 processors.
++
++	  Enables -march=znver2
++
+ config MCRUSOE
+ 	bool "Crusoe"
+ 	depends on X86_32
+@@ -260,6 +338,7 @@ config MVIAC7
+ 
+ config MPSC
+ 	bool "Intel P4 / older Netburst based Xeon"
++	select X86_P6_NOP
+ 	depends on X86_64
+ 	help
+ 	  Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
+@@ -269,8 +348,19 @@ config MPSC
+ 	  using the cpu family field
+ 	  in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
+ 
++config MATOM
++	bool "Intel Atom"
++	select X86_P6_NOP
++	help
++
++	  Select this for the Intel Atom platform. Intel Atom CPUs have an
++	  in-order pipelining architecture and thus can benefit from
++	  accordingly optimized code. Use a recent GCC with specific Atom
++	  support in order to fully benefit from selecting this option.
++
+ config MCORE2
+-	bool "Core 2/newer Xeon"
++	bool "Intel Core 2"
++	select X86_P6_NOP
+ 	help
+ 
+ 	  Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and
+@@ -278,14 +368,151 @@ config MCORE2
+ 	  family in /proc/cpuinfo. Newer ones have 6 and older ones 15
+ 	  (not a typo)
+ 
+-config MATOM
+-	bool "Intel Atom"
++	  Enables -march=core2
++
++config MNEHALEM
++	bool "Intel Nehalem"
++	select X86_P6_NOP
+ 	help
+ 
+-	  Select this for the Intel Atom platform. Intel Atom CPUs have an
+-	  in-order pipelining architecture and thus can benefit from
+-	  accordingly optimized code. Use a recent GCC with specific Atom
+-	  support in order to fully benefit from selecting this option.
++	  Select this for 1st Gen Core processors in the Nehalem family.
++
++	  Enables -march=nehalem
++
++config MWESTMERE
++	bool "Intel Westmere"
++	select X86_P6_NOP
++	help
++
++	  Select this for the Intel Westmere formerly Nehalem-C family.
++
++	  Enables -march=westmere
++
++config MSILVERMONT
++	bool "Intel Silvermont"
++	select X86_P6_NOP
++	help
++
++	  Select this for the Intel Silvermont platform.
++
++	  Enables -march=silvermont
++
++config MGOLDMONT
++	bool "Intel Goldmont"
++	select X86_P6_NOP
++	help
++
++	  Select this for the Intel Goldmont platform including Apollo Lake and Denverton.
++
++	  Enables -march=goldmont
++
++config MGOLDMONTPLUS
++	bool "Intel Goldmont Plus"
++	select X86_P6_NOP
++	help
++
++	  Select this for the Intel Goldmont Plus platform including Gemini Lake.
++
++	  Enables -march=goldmont-plus
++
++config MSANDYBRIDGE
++	bool "Intel Sandy Bridge"
++	select X86_P6_NOP
++	help
++
++	  Select this for 2nd Gen Core processors in the Sandy Bridge family.
++
++	  Enables -march=sandybridge
++
++config MIVYBRIDGE
++	bool "Intel Ivy Bridge"
++	select X86_P6_NOP
++	help
++
++	  Select this for 3rd Gen Core processors in the Ivy Bridge family.
++
++	  Enables -march=ivybridge
++
++config MHASWELL
++	bool "Intel Haswell"
++	select X86_P6_NOP
++	help
++
++	  Select this for 4th Gen Core processors in the Haswell family.
++
++	  Enables -march=haswell
++
++config MBROADWELL
++	bool "Intel Broadwell"
++	select X86_P6_NOP
++	help
++
++	  Select this for 5th Gen Core processors in the Broadwell family.
++
++	  Enables -march=broadwell
++
++config MSKYLAKE
++	bool "Intel Skylake"
++	select X86_P6_NOP
++	help
++
++	  Select this for 6th Gen Core processors in the Skylake family.
++
++	  Enables -march=skylake
++
++config MSKYLAKEX
++	bool "Intel Skylake X"
++	select X86_P6_NOP
++	help
++
++	  Select this for 6th Gen Core processors in the Skylake X family.
++
++	  Enables -march=skylake-avx512
++
++config MCANNONLAKE
++	bool "Intel Cannon Lake"
++	select X86_P6_NOP
++	help
++
++	  Select this for 8th Gen Core processors
++
++	  Enables -march=cannonlake
++
++config MICELAKE
++	bool "Intel Ice Lake"
++	select X86_P6_NOP
++	help
++
++	  Select this for 10th Gen Core processors in the Ice Lake family.
++
++	  Enables -march=icelake-client
++
++config MCASCADELAKE
++	bool "Intel Cascade Lake"
++	select X86_P6_NOP
++	help
++
++	  Select this for Xeon processors in the Cascade Lake family.
++
++	  Enables -march=cascadelake
++
++config MCOOPERLAKE
++	bool "Intel Cooper Lake"
++	select X86_P6_NOP
++	help
++
++	  Select this for Xeon processors in the Cooper Lake family.
++
++	  Enables -march=cooperlake
++
++config MTIGERLAKE
++	bool "Intel Tiger Lake"
++	select X86_P6_NOP
++	help
++
++	  Select this for third-generation 10 nm process processors in the Tiger Lake family.
++
++	  Enables -march=tigerlake
+ 
+ config GENERIC_CPU
+ 	bool "Generic-x86-64"
+@@ -294,6 +521,19 @@ config GENERIC_CPU
+ 	  Generic x86-64 CPU.
+ 	  Run equally well on all x86-64 CPUs.
+ 
++config MNATIVE
++ bool "Native optimizations autodetected by GCC"
++ help
++
++   GCC 4.2 and above support -march=native, which automatically detects
++   the optimum settings to use based on your processor. -march=native
++   also detects and applies additional settings beyond -march specific
++   to your CPU, (eg. -msse4). Unless you have a specific reason not to
++   (e.g. distcc cross-compiling), you should probably be using
++   -march=native rather than anything listed below.
++
++   Enables -march=native
++
+ endchoice
+ 
+ config X86_GENERIC
+@@ -318,7 +558,7 @@ config X86_INTERNODE_CACHE_SHIFT
+ config X86_L1_CACHE_SHIFT
+ 	int
+ 	default "7" if MPENTIUM4 || MPSC
+-	default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU
++	default "6" if MK7 || MK8 || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || MBULLDOZER || MPILEDRIVER || MSTEAMROLLER || MEXCAVATOR || MZEN || MZEN2 || MJAGUAR || MPENTIUMM || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MNATIVE || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU
+ 	default "4" if MELAN || M486SX || M486 || MGEODEGX1
+ 	default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
+ 
+@@ -336,35 +576,36 @@ config X86_ALIGNMENT_16
+ 
+ config X86_INTEL_USERCOPY
+ 	def_bool y
+-	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2
++	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK8SSE3 || MK7 || MEFFICEON || MCORE2 || MK10 || MBARCELONA || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MNATIVE
+ 
+ config X86_USE_PPRO_CHECKSUM
+ 	def_bool y
+-	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MVIAC7 || MEFFICEON || MGEODE_LX || MCORE2 || MATOM
++	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MK10 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MK8SSE3 || MVIAC3_2 || MVIAC7 || MEFFICEON || MGEODE_LX || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MATOM || MNATIVE
+ 
+ config X86_USE_3DNOW
+ 	def_bool y
+ 	depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
+ 
+-#
+-# P6_NOPs are a relatively minor optimization that require a family >=
+-# 6 processor, except that it is broken on certain VIA chips.
+-# Furthermore, AMD chips prefer a totally different sequence of NOPs
+-# (which work on all CPUs).  In addition, it looks like Virtual PC
+-# does not understand them.
+-#
+-# As a result, disallow these if we're not compiling for X86_64 (these
+-# NOPs do work on all x86-64 capable chips); the list of processors in
+-# the right-hand clause are the cores that benefit from this optimization.
+-#
+ config X86_P6_NOP
+-	def_bool y
+-	depends on X86_64
+-	depends on (MCORE2 || MPENTIUM4 || MPSC)
++	default n
++	bool "Support for P6_NOPs on Intel chips"
++	depends on (MCORE2 || MPENTIUM4 || MPSC || MATOM || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS  || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MNATIVE)
++	help
++	P6_NOPs are a relatively minor optimization that require a family >=
++	6 processor, except that it is broken on certain VIA chips.
++	Furthermore, AMD chips prefer a totally different sequence of NOPs
++	(which work on all CPUs).  In addition, it looks like Virtual PC
++	does not understand them.
++
++	As a result, disallow these if we're not compiling for X86_64 (these
++	NOPs do work on all x86-64 capable chips); the list of processors in
++	the right-hand clause are the cores that benefit from this optimization.
++
++	Say Y if you have Intel CPU newer than Pentium Pro, N otherwise.
+ 
+ config X86_TSC
+ 	def_bool y
+-	depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2 || MATOM) || X86_64
++	depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MK8SSE3 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MNATIVE || MATOM) || X86_64
+ 
+ config X86_CMPXCHG64
+ 	def_bool y
+@@ -374,7 +615,7 @@ config X86_CMPXCHG64
+ # generates cmov.
+ config X86_CMOV
+ 	def_bool y
+-	depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
++	depends on (MK8 || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || MBULLDOZER || MPILEDRIVER || MSTEAMROLLER || MEXCAVATOR || MZEN || MZEN2 || MJAGUAR || MK7 || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MNATIVE || MATOM || MGEODE_LX)
+ 
+ config X86_MINIMUM_CPU_FAMILY
+ 	int
+diff --git a/arch/x86/Makefile b/arch/x86/Makefile
+index 154259f18b8b..405b1f2b3c65 100644
+--- a/arch/x86/Makefile
++++ b/arch/x86/Makefile
+@@ -115,13 +115,60 @@ else
+ 	KBUILD_CFLAGS += $(call cc-option,-mskip-rax-setup)
+ 
+         # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
++        cflags-$(CONFIG_MNATIVE) += $(call cc-option,-march=native)
+         cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
++        cflags-$(CONFIG_MK8SSE3) += $(call cc-option,-march=k8-sse3,-mtune=k8)
++        cflags-$(CONFIG_MK10) += $(call cc-option,-march=amdfam10)
++        cflags-$(CONFIG_MBARCELONA) += $(call cc-option,-march=barcelona)
++        cflags-$(CONFIG_MBOBCAT) += $(call cc-option,-march=btver1)
++        cflags-$(CONFIG_MJAGUAR) += $(call cc-option,-march=btver2)
++        cflags-$(CONFIG_MBULLDOZER) += $(call cc-option,-march=bdver1)
++        cflags-$(CONFIG_MPILEDRIVER) += $(call cc-option,-march=bdver2)
++        cflags-$(CONFIG_MPILEDRIVER) += $(call cc-option,-mno-tbm)
++        cflags-$(CONFIG_MSTEAMROLLER) += $(call cc-option,-march=bdver3)
++        cflags-$(CONFIG_MSTEAMROLLER) += $(call cc-option,-mno-tbm)
++        cflags-$(CONFIG_MEXCAVATOR) += $(call cc-option,-march=bdver4)
++        cflags-$(CONFIG_MEXCAVATOR) += $(call cc-option,-mno-tbm)
++        cflags-$(CONFIG_MZEN) += $(call cc-option,-march=znver1)
++        cflags-$(CONFIG_MZEN2) += $(call cc-option,-march=znver2)
+         cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+ 
+         cflags-$(CONFIG_MCORE2) += \
+-                $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
+-	cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
+-		$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
++                $(call cc-option,-march=core2,$(call cc-option,-mtune=core2))
++        cflags-$(CONFIG_MNEHALEM) += \
++                $(call cc-option,-march=nehalem,$(call cc-option,-mtune=nehalem))
++        cflags-$(CONFIG_MWESTMERE) += \
++                $(call cc-option,-march=westmere,$(call cc-option,-mtune=westmere))
++        cflags-$(CONFIG_MSILVERMONT) += \
++                $(call cc-option,-march=silvermont,$(call cc-option,-mtune=silvermont))
++        cflags-$(CONFIG_MGOLDMONT) += \
++                $(call cc-option,-march=goldmont,$(call cc-option,-mtune=goldmont))
++        cflags-$(CONFIG_MGOLDMONTPLUS) += \
++                $(call cc-option,-march=goldmont-plus,$(call cc-option,-mtune=goldmont-plus))
++        cflags-$(CONFIG_MSANDYBRIDGE) += \
++                $(call cc-option,-march=sandybridge,$(call cc-option,-mtune=sandybridge))
++        cflags-$(CONFIG_MIVYBRIDGE) += \
++                $(call cc-option,-march=ivybridge,$(call cc-option,-mtune=ivybridge))
++        cflags-$(CONFIG_MHASWELL) += \
++                $(call cc-option,-march=haswell,$(call cc-option,-mtune=haswell))
++        cflags-$(CONFIG_MBROADWELL) += \
++                $(call cc-option,-march=broadwell,$(call cc-option,-mtune=broadwell))
++        cflags-$(CONFIG_MSKYLAKE) += \
++                $(call cc-option,-march=skylake,$(call cc-option,-mtune=skylake))
++        cflags-$(CONFIG_MSKYLAKEX) += \
++                $(call cc-option,-march=skylake-avx512,$(call cc-option,-mtune=skylake-avx512))
++        cflags-$(CONFIG_MCANNONLAKE) += \
++                $(call cc-option,-march=cannonlake,$(call cc-option,-mtune=cannonlake))
++        cflags-$(CONFIG_MICELAKE) += \
++                $(call cc-option,-march=icelake-client,$(call cc-option,-mtune=icelake-client))
++        cflags-$(CONFIG_MCASCADELAKE) += \
++                $(call cc-option,-march=cascadelake,$(call cc-option,-mtune=cascadelake))
++        cflags-$(CONFIG_MCOOPERLAKE) += \
++                $(call cc-option,-march=cooperlake,$(call cc-option,-mtune=cooperlake))
++        cflags-$(CONFIG_MTIGERLAKE) += \
++                $(call cc-option,-march=tigerlake,$(call cc-option,-mtune=tigerlake))
++        cflags-$(CONFIG_MATOM) += $(call cc-option,-march=bonnell) \
++                $(call cc-option,-mtune=bonnell,$(call cc-option,-mtune=generic))
+         cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
+         KBUILD_CFLAGS += $(cflags-y)
+ 
+diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu
+index cd3056759880..cb0a4c6bd987 100644
+--- a/arch/x86/Makefile_32.cpu
++++ b/arch/x86/Makefile_32.cpu
+@@ -24,7 +24,19 @@ cflags-$(CONFIG_MK6)		+= -march=k6
+ # Please note, that patches that add -march=athlon-xp and friends are pointless.
+ # They make zero difference whatsosever to performance at this time.
+ cflags-$(CONFIG_MK7)		+= -march=athlon
++cflags-$(CONFIG_MNATIVE) += $(call cc-option,-march=native)
+ cflags-$(CONFIG_MK8)		+= $(call cc-option,-march=k8,-march=athlon)
++cflags-$(CONFIG_MK8SSE3)		+= $(call cc-option,-march=k8-sse3,-march=athlon)
++cflags-$(CONFIG_MK10)	+= $(call cc-option,-march=amdfam10,-march=athlon)
++cflags-$(CONFIG_MBARCELONA)	+= $(call cc-option,-march=barcelona,-march=athlon)
++cflags-$(CONFIG_MBOBCAT)	+= $(call cc-option,-march=btver1,-march=athlon)
++cflags-$(CONFIG_MJAGUAR)	+= $(call cc-option,-march=btver2,-march=athlon)
++cflags-$(CONFIG_MBULLDOZER)	+= $(call cc-option,-march=bdver1,-march=athlon)
++cflags-$(CONFIG_MPILEDRIVER)	+= $(call cc-option,-march=bdver2,-march=athlon)
++cflags-$(CONFIG_MSTEAMROLLER)	+= $(call cc-option,-march=bdver3,-march=athlon)
++cflags-$(CONFIG_MEXCAVATOR)	+= $(call cc-option,-march=bdver4,-march=athlon)
++cflags-$(CONFIG_MZEN)	+= $(call cc-option,-march=znver1,-march=athlon)
++cflags-$(CONFIG_MZEN2)	+= $(call cc-option,-march=znver2,-march=athlon)
+ cflags-$(CONFIG_MCRUSOE)	+= -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
+ cflags-$(CONFIG_MEFFICEON)	+= -march=i686 $(call tune,pentium3) -falign-functions=0 -falign-jumps=0 -falign-loops=0
+ cflags-$(CONFIG_MWINCHIPC6)	+= $(call cc-option,-march=winchip-c6,-march=i586)
+@@ -33,8 +45,24 @@ cflags-$(CONFIG_MCYRIXIII)	+= $(call cc-option,-march=c3,-march=i486) -falign-fu
+ cflags-$(CONFIG_MVIAC3_2)	+= $(call cc-option,-march=c3-2,-march=i686)
+ cflags-$(CONFIG_MVIAC7)		+= -march=i686
+ cflags-$(CONFIG_MCORE2)		+= -march=i686 $(call tune,core2)
+-cflags-$(CONFIG_MATOM)		+= $(call cc-option,-march=atom,$(call cc-option,-march=core2,-march=i686)) \
+-	$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
++cflags-$(CONFIG_MNEHALEM)	+= -march=i686 $(call tune,nehalem)
++cflags-$(CONFIG_MWESTMERE)	+= -march=i686 $(call tune,westmere)
++cflags-$(CONFIG_MSILVERMONT)	+= -march=i686 $(call tune,silvermont)
++cflags-$(CONFIG_MGOLDMONT)	+= -march=i686 $(call tune,goldmont)
++cflags-$(CONFIG_MGOLDMONTPLUS)	+= -march=i686 $(call tune,goldmont-plus)
++cflags-$(CONFIG_MSANDYBRIDGE)	+= -march=i686 $(call tune,sandybridge)
++cflags-$(CONFIG_MIVYBRIDGE)	+= -march=i686 $(call tune,ivybridge)
++cflags-$(CONFIG_MHASWELL)	+= -march=i686 $(call tune,haswell)
++cflags-$(CONFIG_MBROADWELL)	+= -march=i686 $(call tune,broadwell)
++cflags-$(CONFIG_MSKYLAKE)	+= -march=i686 $(call tune,skylake)
++cflags-$(CONFIG_MSKYLAKEX)	+= -march=i686 $(call tune,skylake-avx512)
++cflags-$(CONFIG_MCANNONLAKE)	+= -march=i686 $(call tune,cannonlake)
++cflags-$(CONFIG_MICELAKE)	+= -march=i686 $(call tune,icelake-client)
++cflags-$(CONFIG_MCASCADELAKE)	+= -march=i686 $(call tune,cascadelake)
++cflags-$(CONFIG_MCOOPERLAKE)	+= -march=i686 $(call tune,cooperlake)
++cflags-$(CONFIG_MTIGERLAKE)	+= -march=i686 $(call tune,tigerlake)
++cflags-$(CONFIG_MATOM)		+= $(call cc-option,-march=bonnell,$(call cc-option,-march=core2,-march=i686)) \
++	$(call cc-option,-mtune=bonnell,$(call cc-option,-mtune=generic))
+ 
+ # AMD Elan support
+ cflags-$(CONFIG_MELAN)		+= -march=i486
+diff --git a/arch/x86/include/asm/vermagic.h b/arch/x86/include/asm/vermagic.h
+index 75884d2cdec3..14c222e78213 100644
+--- a/arch/x86/include/asm/vermagic.h
++++ b/arch/x86/include/asm/vermagic.h
+@@ -17,6 +17,40 @@
+ #define MODULE_PROC_FAMILY "586MMX "
+ #elif defined CONFIG_MCORE2
+ #define MODULE_PROC_FAMILY "CORE2 "
++#elif defined CONFIG_MNATIVE
++#define MODULE_PROC_FAMILY "NATIVE "
++#elif defined CONFIG_MNEHALEM
++#define MODULE_PROC_FAMILY "NEHALEM "
++#elif defined CONFIG_MWESTMERE
++#define MODULE_PROC_FAMILY "WESTMERE "
++#elif defined CONFIG_MSILVERMONT
++#define MODULE_PROC_FAMILY "SILVERMONT "
++#elif defined CONFIG_MGOLDMONT
++#define MODULE_PROC_FAMILY "GOLDMONT "
++#elif defined CONFIG_MGOLDMONTPLUS
++#define MODULE_PROC_FAMILY "GOLDMONTPLUS "
++#elif defined CONFIG_MSANDYBRIDGE
++#define MODULE_PROC_FAMILY "SANDYBRIDGE "
++#elif defined CONFIG_MIVYBRIDGE
++#define MODULE_PROC_FAMILY "IVYBRIDGE "
++#elif defined CONFIG_MHASWELL
++#define MODULE_PROC_FAMILY "HASWELL "
++#elif defined CONFIG_MBROADWELL
++#define MODULE_PROC_FAMILY "BROADWELL "
++#elif defined CONFIG_MSKYLAKE
++#define MODULE_PROC_FAMILY "SKYLAKE "
++#elif defined CONFIG_MSKYLAKEX
++#define MODULE_PROC_FAMILY "SKYLAKEX "
++#elif defined CONFIG_MCANNONLAKE
++#define MODULE_PROC_FAMILY "CANNONLAKE "
++#elif defined CONFIG_MICELAKE
++#define MODULE_PROC_FAMILY "ICELAKE "
++#elif defined CONFIG_MCASCADELAKE
++#define MODULE_PROC_FAMILY "CASCADELAKE "
++#elif defined CONFIG_MCOOPERLAKE
++#define MODULE_PROC_FAMILY "COOPERLAKE "
++#elif defined CONFIG_MTIGERLAKE
++#define MODULE_PROC_FAMILY "TIGERLAKE "
+ #elif defined CONFIG_MATOM
+ #define MODULE_PROC_FAMILY "ATOM "
+ #elif defined CONFIG_M686
+@@ -35,6 +69,28 @@
+ #define MODULE_PROC_FAMILY "K7 "
+ #elif defined CONFIG_MK8
+ #define MODULE_PROC_FAMILY "K8 "
++#elif defined CONFIG_MK8SSE3
++#define MODULE_PROC_FAMILY "K8SSE3 "
++#elif defined CONFIG_MK10
++#define MODULE_PROC_FAMILY "K10 "
++#elif defined CONFIG_MBARCELONA
++#define MODULE_PROC_FAMILY "BARCELONA "
++#elif defined CONFIG_MBOBCAT
++#define MODULE_PROC_FAMILY "BOBCAT "
++#elif defined CONFIG_MBULLDOZER
++#define MODULE_PROC_FAMILY "BULLDOZER "
++#elif defined CONFIG_MPILEDRIVER
++#define MODULE_PROC_FAMILY "PILEDRIVER "
++#elif defined CONFIG_MSTEAMROLLER
++#define MODULE_PROC_FAMILY "STEAMROLLER "
++#elif defined CONFIG_MJAGUAR
++#define MODULE_PROC_FAMILY "JAGUAR "
++#elif defined CONFIG_MEXCAVATOR
++#define MODULE_PROC_FAMILY "EXCAVATOR "
++#elif defined CONFIG_MZEN
++#define MODULE_PROC_FAMILY "ZEN "
++#elif defined CONFIG_MZEN2
++#define MODULE_PROC_FAMILY "ZEN2 "
+ #elif defined CONFIG_MELAN
+ #define MODULE_PROC_FAMILY "ELAN "
+ #elif defined CONFIG_MCRUSOE
+-- 
+2.29.2
+