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elwrcl committed 2026-07-18 17:13:14 +03:00
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modules/nixos/boot/patches/0001-acpi-call.patch
+506
View File
@@ -0,0 +1,506 @@
From b8928a98ce5f7beb440fc34bd0aee8bfd340eedc Mon Sep 17 00:00:00 2001
From: Eric Naim <[email protected]>
Date: Wed, 11 Feb 2026 01:38:45 +0800
Subject: [PATCH] acpi-call
Signed-off-by: Eric Naim <[email protected]>
---
drivers/platform/x86/Kconfig | 5 +
drivers/platform/x86/Makefile | 4 +
drivers/platform/x86/acpi_call.c | 449 +++++++++++++++++++++++++++++++
3 files changed, 458 insertions(+)
create mode 100644 drivers/platform/x86/acpi_call.c
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 4cb7d97a9fcc..5bef98aa8ecb 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -148,6 +148,11 @@ config ACER_WIRELESS
If you choose to compile this driver as a module the module will be
called acer-wireless.
+config ACPI_CALL
+ tristate "acpi_call module"
+ help
+ This embeds acpi_call module into the kernel
+
config ACER_WMI
tristate "Acer WMI Laptop Extras"
depends on BACKLIGHT_CLASS_DEVICE
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index d25762f7114f..42134c481ef1 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -4,9 +4,13 @@
# x86 Platform-Specific Drivers
#
+# ACPI Calls
+
# Windows Management Interface
obj-$(CONFIG_WMI_BMOF) += wmi-bmof.o
+obj-$(CONFIG_ACPI_CALL) += acpi_call.o
+
# WMI drivers
obj-$(CONFIG_HUAWEI_WMI) += huawei-wmi.o
obj-$(CONFIG_MXM_WMI) += mxm-wmi.o
diff --git a/drivers/platform/x86/acpi_call.c b/drivers/platform/x86/acpi_call.c
new file mode 100644
index 000000000000..d7bc238e16da
--- /dev/null
+++ b/drivers/platform/x86/acpi_call.c
@@ -0,0 +1,449 @@
+/* Copyright (c) 2010: Michal Kottman */
+
+#define BUILDING_ACPICA
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
+#include <asm/uaccess.h>
+#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 17, 0)
+#include <linux/acpi.h>
+#else
+#include <acpi/acpi.h>
+#endif
+
+MODULE_LICENSE("GPL");
+
+/* Uncomment the following line to enable debug messages */
+/*
+#define DEBUG
+*/
+
+#define BUFFER_SIZE 4096
+#define INPUT_BUFFER_SIZE (2 * BUFFER_SIZE)
+#define MAX_ACPI_ARGS 16
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0)
+#define HAVE_PROC_CREATE
+#endif
+
+extern struct proc_dir_entry *acpi_root_dir;
+
+static char input_buffer[INPUT_BUFFER_SIZE];
+static char result_buffer[BUFFER_SIZE];
+static char not_called_message[11] = "not called";
+
+static u8 temporary_buffer[BUFFER_SIZE];
+
+static size_t get_avail_bytes(void) {
+ return BUFFER_SIZE - strlen(result_buffer);
+}
+static char *get_buffer_end(void) {
+ return result_buffer + strlen(result_buffer);
+}
+
+/** Appends the contents of an acpi_object to the result buffer
+@param result An acpi object holding result data
+@returns 0 if the result could fully be saved, a higher value otherwise
+*/
+static int acpi_result_to_string(union acpi_object *result) {
+ if (result->type == ACPI_TYPE_INTEGER) {
+ snprintf(get_buffer_end(), get_avail_bytes(),
+ "0x%x", (int)result->integer.value);
+ } else if (result->type == ACPI_TYPE_STRING) {
+ snprintf(get_buffer_end(), get_avail_bytes(),
+ "\"%*s\"", result->string.length, result->string.pointer);
+ } else if (result->type == ACPI_TYPE_BUFFER) {
+ int i;
+ // do not store more than data if it does not fit. The first element is
+ // just 4 chars, but there is also two bytes from the curly brackets
+ int show_values = min((size_t)result->buffer.length, get_avail_bytes() / 6);
+
+ snprintf(get_buffer_end(), get_avail_bytes(), "{");
+ for (i = 0; i < show_values; i++)
+ sprintf(get_buffer_end(),
+ i == 0 ? "0x%02x" : ", 0x%02x", result->buffer.pointer[i]);
+
+ if (result->buffer.length > show_values) {
+ // if data was truncated, show a trailing comma if there is space
+ snprintf(get_buffer_end(), get_avail_bytes(), ",");
+ return 1;
+ } else {
+ // in case show_values == 0, but the buffer is too small to hold
+ // more values (i.e. the buffer cannot have anything more than "{")
+ snprintf(get_buffer_end(), get_avail_bytes(), "}");
+ }
+ } else if (result->type == ACPI_TYPE_PACKAGE) {
+ int i;
+ snprintf(get_buffer_end(), get_avail_bytes(), "[");
+ for (i=0; i<result->package.count; i++) {
+ if (i > 0)
+ snprintf(get_buffer_end(), get_avail_bytes(), ", ");
+
+ // abort if there is no more space available
+ if (!get_avail_bytes() || acpi_result_to_string(&result->package.elements[i]))
+ return 1;
+ }
+ snprintf(get_buffer_end(), get_avail_bytes(), "]");
+ } else {
+ snprintf(get_buffer_end(), get_avail_bytes(),
+ "Object type 0x%x\n", result->type);
+ }
+
+ // return 0 if there are still bytes available, 1 otherwise
+ return !get_avail_bytes();
+}
+
+/**
+@param method The full name of ACPI method to call
+@param argc The number of parameters
+@param argv A pre-allocated array of arguments of type acpi_object
+*/
+static void do_acpi_call(const char * method, int argc, union acpi_object *argv)
+{
+ acpi_status status;
+ acpi_handle handle;
+ struct acpi_object_list arg;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+
+#ifdef DEBUG
+ printk(KERN_INFO "acpi_call: Calling %s\n", method);
+#endif
+
+ // get the handle of the method, must be a fully qualified path
+ status = acpi_get_handle(NULL, (acpi_string) method, &handle);
+
+ if (ACPI_FAILURE(status))
+ {
+ snprintf(result_buffer, BUFFER_SIZE, "Error: %s", acpi_format_exception(status));
+ printk(KERN_ERR "acpi_call: Cannot get handle: %s\n", result_buffer);
+ return;
+ }
+
+ // prepare parameters
+ arg.count = argc;
+ arg.pointer = argv;
+
+ // call the method
+ status = acpi_evaluate_object(handle, NULL, &arg, &buffer);
+ if (ACPI_FAILURE(status))
+ {
+ snprintf(result_buffer, BUFFER_SIZE, "Error: %s", acpi_format_exception(status));
+ printk(KERN_ERR "acpi_call: Method call failed: %s\n", result_buffer);
+ return;
+ }
+
+ // reset the result buffer
+ *result_buffer = '\0';
+ acpi_result_to_string(buffer.pointer);
+ kfree(buffer.pointer);
+
+#ifdef DEBUG
+ printk(KERN_INFO "acpi_call: Call successful: %s\n", result_buffer);
+#endif
+}
+
+/** Decodes 2 hex characters to an u8 int
+*/
+u8 decodeHex(char *hex) {
+ char buf[3] = { hex[0], hex[1], 0};
+ return (u8) simple_strtoul(buf, NULL, 16);
+}
+
+/** Parses method name and arguments
+@param input Input string to be parsed. Modified in the process.
+@param nargs Set to number of arguments parsed (output)
+@param args
+*/
+static char *parse_acpi_args(char *input, int *nargs, union acpi_object **args)
+{
+ char *s = input;
+ int i;
+
+ *nargs = 0;
+ *args = NULL;
+
+ // the method name is separated from the arguments by a space
+ while (*s && *s != ' ')
+ s++;
+ // if no space is found, return 0 arguments
+ if (*s == 0)
+ return input;
+
+ *args = (union acpi_object *) kmalloc(MAX_ACPI_ARGS * sizeof(union acpi_object), GFP_KERNEL);
+ if (!*args) {
+ printk(KERN_ERR "acpi_call: unable to allocate buffer\n");
+ return NULL;
+ }
+
+ while (*s) {
+ if (*s == ' ') {
+ if (*nargs == 0)
+ *s = 0; // change first space to nul
+ ++ *nargs;
+ ++ s;
+ } else {
+ union acpi_object *arg = (*args) + (*nargs - 1);
+ if (*s == '"') {
+ // decode string
+ arg->type = ACPI_TYPE_STRING;
+ arg->string.pointer = ++s;
+ arg->string.length = 0;
+ while (*s && *s++ != '"')
+ arg->string.length ++;
+ // skip the last "
+ if (*s == '"')
+ ++s;
+ } else if (*s == 'b') {
+ // decode buffer - bXXXX
+ char *p = ++s;
+ int len = 0, i;
+ u8 *buf = NULL;
+
+ while (*p && *p!=' ')
+ p++;
+
+ len = p - s;
+ if (len % 2 == 1) {
+ printk(KERN_ERR "acpi_call: buffer arg%d is not multiple of 8 bits\n", *nargs);
+ --*nargs;
+ goto err;
+ }
+ len /= 2;
+
+ buf = (u8*) kmalloc(len, GFP_KERNEL);
+ if (!buf) {
+ printk(KERN_ERR "acpi_call: unable to allocate buffer\n");
+ --*nargs;
+ goto err;
+ }
+ for (i=0; i<len; i++) {
+ buf[i] = decodeHex(s + i*2);
+ }
+ s = p;
+
+ arg->type = ACPI_TYPE_BUFFER;
+ arg->buffer.pointer = buf;
+ arg->buffer.length = len;
+ } else if (*s == '{') {
+ // decode buffer - { b1, b2 ...}
+ u8 *buf = temporary_buffer;
+ arg->type = ACPI_TYPE_BUFFER;
+ arg->buffer.pointer = buf;
+ arg->buffer.length = 0;
+ while (*s && *s++ != '}') {
+ if (buf >= temporary_buffer + sizeof(temporary_buffer)) {
+ printk(KERN_ERR "acpi_call: buffer arg%d is truncated because the buffer is full\n", *nargs);
+ // clear remaining arguments
+ while (*s && *s != '}')
+ ++s;
+ break;
+ }
+ else if (*s >= '0' && *s <= '9') {
+ // decode integer into buffer
+ arg->buffer.length ++;
+ if (s[0] == '0' && s[1] == 'x')
+ *buf++ = simple_strtol(s+2, 0, 16);
+ else
+ *buf++ = simple_strtol(s, 0, 10);
+ }
+ // skip until space or comma or '}'
+ while (*s && *s != ' ' && *s != ',' && *s != '}')
+ ++s;
+ }
+ // store the result in new allocated buffer
+ buf = (u8*) kmalloc(arg->buffer.length, GFP_KERNEL);
+ if (!buf) {
+ printk(KERN_ERR "acpi_call: unable to allocate buffer\n");
+ --*nargs;
+ goto err;
+ }
+ memcpy(buf, temporary_buffer, arg->buffer.length);
+ arg->buffer.pointer = buf;
+ } else {
+ // decode integer, N or 0xN
+ arg->type = ACPI_TYPE_INTEGER;
+ if (s[0] == '0' && s[1] == 'x') {
+ arg->integer.value = simple_strtol(s+2, 0, 16);
+ } else {
+ arg->integer.value = simple_strtol(s, 0, 10);
+ }
+ while (*s && *s != ' ') {
+ ++s;
+ }
+ }
+ }
+ }
+
+ return input;
+
+err:
+ for (i=0; i<*nargs; i++)
+ if ((*args)[i].type == ACPI_TYPE_BUFFER && (*args)[i].buffer.pointer)
+ kfree((*args)[i].buffer.pointer);
+ kfree(*args);
+ return NULL;
+}
+
+/** procfs write callback. Called when writing into /proc/acpi/call.
+*/
+#ifdef HAVE_PROC_CREATE
+static ssize_t acpi_proc_write( struct file *filp, const char __user *buff,
+ size_t len, loff_t *data )
+#else
+static int acpi_proc_write( struct file *filp, const char __user *buff,
+ unsigned long len, void *data )
+#endif
+{
+ union acpi_object *args;
+ int nargs, i;
+ char *method;
+
+ memset(input_buffer, 0, INPUT_BUFFER_SIZE);
+ if (len > sizeof(input_buffer) - 1) {
+#ifdef HAVE_PROC_CREATE
+ printk(KERN_ERR "acpi_call: Input too long! (%zu)\n", len);
+#else
+ printk(KERN_ERR "acpi_call: Input too long! (%lu)\n", len);
+#endif
+ return -ENOSPC;
+ }
+
+ if (copy_from_user( input_buffer, buff, len )) {
+ return -EFAULT;
+ }
+ input_buffer[len] = '\0';
+ if (input_buffer[len-1] == '\n')
+ input_buffer[len-1] = '\0';
+
+ method = parse_acpi_args(input_buffer, &nargs, &args);
+ if (method) {
+ do_acpi_call(method, nargs, args);
+ if (args) {
+ for (i=0; i<nargs; i++)
+ if (args[i].type == ACPI_TYPE_BUFFER)
+ kfree(args[i].buffer.pointer);
+ }
+ }
+ if (args)
+ kfree(args);
+
+ return len;
+}
+
+/** procfs 'call' read callback. Called when reading the content of /proc/acpi/call.
+Returns the last call status:
+- "not called" when no call was previously issued
+- "failed" if the call failed
+- "ok" if the call succeeded
+*/
+#ifdef HAVE_PROC_CREATE
+static ssize_t acpi_proc_read( struct file *filp, char __user *buff,
+ size_t count, loff_t *off )
+{
+ ssize_t ret;
+ int len = strlen(result_buffer);
+
+ if(len == 0) {
+ ret = simple_read_from_buffer(buff, count, off, not_called_message, strlen(not_called_message) + 1);
+ } else if(len + 1 > count) {
+ // user buffer is too small
+ ret = 0;
+ } else if(*off == len + 1) {
+ // we're done
+ ret = 0;
+ result_buffer[0] = '\0';
+ } else {
+ // output the current result buffer
+ ret = simple_read_from_buffer(buff, count, off, result_buffer, len + 1);
+ *off = ret;
+ }
+
+ return ret;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
+static struct proc_ops proc_acpi_operations = {
+ .proc_read = acpi_proc_read,
+ .proc_write = acpi_proc_write,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 13, 0)
+ .proc_lseek = default_llseek,
+#endif
+};
+#else
+static struct file_operations proc_acpi_operations = {
+ .owner = THIS_MODULE,
+ .read = acpi_proc_read,
+ .write = acpi_proc_write,
+};
+#endif
+
+#else
+static int acpi_proc_read(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ int len = 0;
+
+ if (off > 0) {
+ *eof = 1;
+ return 0;
+ }
+
+ // output the current result buffer
+ len = strlen(result_buffer);
+ memcpy(page, result_buffer, len + 1);
+
+ // initialize the result buffer for later
+ strcpy(result_buffer, "not called");
+
+ return len;
+}
+#endif
+
+/** module initialization function */
+static int __init init_acpi_call(void)
+{
+#ifdef HAVE_PROC_CREATE
+ struct proc_dir_entry *acpi_entry = proc_create("call",
+ 0660,
+ acpi_root_dir,
+ &proc_acpi_operations);
+#else
+ struct proc_dir_entry *acpi_entry = create_proc_entry("call", 0660, acpi_root_dir);
+#endif
+
+ strcpy(result_buffer, "not called");
+
+ if (acpi_entry == NULL) {
+ printk(KERN_ERR "acpi_call: Couldn't create proc entry\n");
+ return -ENOMEM;
+ }
+
+#ifndef HAVE_PROC_CREATE
+ acpi_entry->write_proc = acpi_proc_write;
+ acpi_entry->read_proc = acpi_proc_read;
+#endif
+
+#ifdef DEBUG
+ printk(KERN_INFO "acpi_call: Module loaded successfully\n");
+#endif
+
+ return 0;
+}
+
+static void __exit unload_acpi_call(void)
+{
+ remove_proc_entry("call", acpi_root_dir);
+
+#ifdef DEBUG
+ printk(KERN_INFO "acpi_call: Module unloaded successfully\n");
+#endif
+}
+
+module_init(init_acpi_call);
+module_exit(unload_acpi_call);
\ No newline at end of file
--
2.53.0
modules/nixos/boot/patches/0001-clang-polly.patch
+156
View File
@@ -0,0 +1,156 @@
From 836c16fbbd981fcf4f6b39faad2e7e7be13d5434 Mon Sep 17 00:00:00 2001
From: Peter Jung <[email protected]>
Date: Thu, 12 Dec 2024 17:28:45 +0100
Subject: [PATCH 1/3] kbuild: Add support for Clang's polyhedral loop
optimizer.
Polly is able to optimize various loops throughout the kernel for cache
locality. A mathematical representation of the program, based on
polyhedra, is analysed to find opportunistic optimisations in memory
access patterns which then leads to loop transformations.
Polly is not built with LLVM by default, and requires LLVM to be compiled
with the Polly "project". This can be done by adding Polly to
-DLLVM_ENABLE_PROJECTS, for example:
-DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi;polly"
Preliminary benchmarking seems to show an improvement of around two
percent across perf benchmarks:
Benchmark | Control | Polly
--------------------------------------------------------
bonnie++ -x 2 -s 4096 -r 0 | 12.610s | 12.547s
perf bench futex requeue | 33.553s | 33.094s
perf bench futex wake | 1.032s | 1.021s
perf bench futex wake-parallel | 1.049s | 1.025s
perf bench futex requeue | 1.037s | 1.020s
Furthermore, Polly does not produce a much larger image size netting it
to be a "free" optimisation. A comparison of a bzImage for a kernel with
and without Polly is shown below:
bzImage | stat --printf="%s\n"
-------------------------------------
Control | 9333728
Polly | 9345792
Compile times were one percent different at best, which is well within
the range of noise. Therefore, I can say with certainty that Polly has
a minimal effect on compile times, if none.
Signed-off-by: Peter Jung <[email protected]>
---
Makefile | 16 ++++++++++++++++
init/Kconfig | 13 +++++++++++++
2 files changed, 29 insertions(+)
diff --git a/Makefile b/Makefile
index 64c594bd7..5f0cb6238 100644
--- a/Makefile
+++ b/Makefile
@@ -870,6 +870,22 @@ endif
KBUILD_RUSTFLAGS += -Cdebug-assertions=$(if $(CONFIG_RUST_DEBUG_ASSERTIONS),y,n)
KBUILD_RUSTFLAGS += -Coverflow-checks=$(if $(CONFIG_RUST_OVERFLOW_CHECKS),y,n)
+ifdef CONFIG_POLLY_CLANG
+KBUILD_CFLAGS += -mllvm -polly \
+ -mllvm -polly-ast-use-context \
+ -mllvm -polly-invariant-load-hoisting \
+ -mllvm -polly-opt-fusion=max \
+ -mllvm -polly-run-inliner \
+ -mllvm -polly-vectorizer=stripmine
+# Polly may optimise loops with dead paths beyound what the linker
+# can understand. This may negate the effect of the linker's DCE
+# so we tell Polly to perfom proven DCE on the loops it optimises
+# in order to preserve the overall effect of the linker's DCE.
+ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
+KBUILD_CFLAGS += -mllvm -polly-run-dce
+endif
+endif
+
# Tell gcc to never replace conditional load with a non-conditional one
ifdef CONFIG_CC_IS_GCC
# gcc-10 renamed --param=allow-store-data-races=0 to
diff --git a/init/Kconfig b/init/Kconfig
index a20e6efd3..66adb2fc9 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -251,6 +251,19 @@ config BUILD_SALT
This is mostly useful for distributions which want to ensure the
build is unique between builds. It's safe to leave the default.
+config POLLY_CLANG
+ bool "Use Clang Polly optimizations"
+ depends on CC_IS_CLANG && $(cc-option,-mllvm -polly -fplugin=LLVMPolly.so)
+ depends on !COMPILE_TEST
+ help
+ This option enables Clang's polyhedral loop optimizer known as
+ Polly. Polly is able to optimize various loops throughout the
+ kernel for cache locality. This requires a Clang toolchain
+ compiled with support for Polly. More information can be found
+ from Polly's website:
+
+ https://polly.llvm.org
+
config HAVE_KERNEL_GZIP
bool
--
2.47.1
From 8b5347cd5e745e8d0a68b28e55b48c62e6c0c513 Mon Sep 17 00:00:00 2001
From: Username404-59 <[email protected]>
Date: Thu, 12 Dec 2024 21:25:40 +0100
Subject: [PATCH 2/3] kbuild: Update old polly option
Signed-off-by: Username404-59 <[email protected]>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index 5f0cb6238..fa433f1d9 100644
--- a/Makefile
+++ b/Makefile
@@ -874,7 +874,7 @@ ifdef CONFIG_POLLY_CLANG
KBUILD_CFLAGS += -mllvm -polly \
-mllvm -polly-ast-use-context \
-mllvm -polly-invariant-load-hoisting \
- -mllvm -polly-opt-fusion=max \
+ -mllvm -polly-loopfusion-greedy \
-mllvm -polly-run-inliner \
-mllvm -polly-vectorizer=stripmine
# Polly may optimise loops with dead paths beyound what the linker
--
2.47.1
From 562335afe34f24f9940d198d536e941e326a9716 Mon Sep 17 00:00:00 2001
From: Username404-59 <[email protected]>
Date: Thu, 12 Dec 2024 21:41:01 +0100
Subject: [PATCH 3/3] kbuild: load polly llvm plugin
Signed-off-by: Username404-59 <[email protected]>
---
Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index fa433f1d9..e8737f5ea 100644
--- a/Makefile
+++ b/Makefile
@@ -871,7 +871,8 @@ KBUILD_RUSTFLAGS += -Cdebug-assertions=$(if $(CONFIG_RUST_DEBUG_ASSERTIONS),y,n)
KBUILD_RUSTFLAGS += -Coverflow-checks=$(if $(CONFIG_RUST_OVERFLOW_CHECKS),y,n)
ifdef CONFIG_POLLY_CLANG
-KBUILD_CFLAGS += -mllvm -polly \
+KBUILD_CFLAGS += -fplugin=LLVMPolly.so \
+ -mllvm -polly \
-mllvm -polly-ast-use-context \
-mllvm -polly-invariant-load-hoisting \
-mllvm -polly-loopfusion-greedy \
--
2.47.1
modules/nixos/boot/patches/0001-prjc-cachy-lfbmq.patch
+11586
View File
File diff suppressed because it is too large. Load diff
modules/nixos/boot/patches/more-ISA-levels-and-uarches-for-kernel-6.16+.patch
+846
View File
@@ -0,0 +1,846 @@
From 6b1d270f55e3143bcb3ad914adf920774351a6b9 Mon Sep 17 00:00:00 2001
From: graysky <therealgraysky AT proton DOT me>
Date: Mon, 18 Aug 2025 04:14:48 -0400
1. New generic x86-64 ISA levels
These are selectable under:
Processor type and features ---> x86-64 compiler ISA level
• x86-64 A value of (1) is the default
• x86-64-v2 A value of (2) brings support for vector
instructions up to Streaming SIMD Extensions 4.2 (SSE4.2)
and Supplemental Streaming SIMD Extensions 3 (SSSE3), the
POPCNT instruction, and CMPXCHG16B.
• x86-64-v3 A value of (3) adds vector instructions up to AVX2, MOVBE,
and additional bit-manipulation instructions.
There is also x86-64-v4 but including this makes little sense as
the kernel does not use any of the AVX512 instructions anyway.
Users of glibc 2.33 and above can see which level is supported by running:
/lib/ld-linux-x86-64.so.2 --help | grep supported
Or
/lib64/ld-linux-x86-64.so.2 --help | grep supported
2. New micro-architectures
These are selectable under:
Processor type and features ---> Processor family
• 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)
• AMD Family 19h (Zen 3)**
• AMD Family 19h (Zen 4)‡
• AMD Family 1Ah (Zen 5)§
• 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)*
• Intel 4th Gen 10nm++ Xeon (Sapphire Rapids)†
• Intel 11th Gen i3/i5/i7/i9-family (Rocket Lake)†
• Intel 12th Gen i3/i5/i7/i9-family (Alder Lake)†
• Intel 13th Gen i3/i5/i7/i9-family (Raptor Lake)‡
• Intel 14th Gen i3/i5/i7/i9-family (Meteor Lake)‡
• Intel 5th Gen 10nm++ Xeon (Emerald Rapids)‡
Notes: If not otherwise noted, gcc >=9.1 is required for support.
*Requires gcc >=10.1 or clang >=10.0
**Required gcc >=10.3 or clang >=12.0
†Required gcc >=11.1 or clang >=12.0
‡Required gcc >=13.0 or clang >=15.0.5
§Required gcc >14.0 or clang >=19.0?
3. Auto-detected micro-architecture levels
Compile by passing the '-march=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."[1]
Users of Intel CPUs should select the 'Intel-Native' option and users of AMD
CPUs should select the 'AMD-Native' option.
MINOR NOTES RELATING TO INTEL ATOM PROCESSORS
This patch also changes -march=atom to -march=bonnell in accordance with the
gcc v4.9 changes. Upstream is using the deprecated -match=atom flags when I
believe it should use the newer -march=bonnell flag for atom processors.[2]
It is not recommended to compile on Atom-CPUs with the 'native' option.[3] 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_compiler_patch?tab=readme-ov-file#benchmarks
REQUIREMENTS
linux version 6.16+
gcc version >=9.0 or clang version >=9.0
ACKNOWLEDGMENTS
This patch builds on the seminal work by Jeroen.[4]
REFERENCES
1. https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html#index-x86-Options
2. https://bugzilla.kernel.org/show_bug.cgi?id=77461
3. https://github.com/graysky2/kernel_gcc_patch/issues/15
4. http://www.linuxforge.net/docs/linux/linux-gcc.php
---
arch/x86/Kconfig.cpu | 427 ++++++++++++++++++++++++++++++++++++++++++-
arch/x86/Makefile | 213 ++++++++++++++++++++-
2 files changed, 631 insertions(+), 9 deletions(-)
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index f928cf6e3252..2802936f2e62 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -31,6 +31,7 @@ choice
- "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
- "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
- "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
+ - "Opteron/Athlon64/Hammer/K8" for all K8 and newer AMD CPUs.
- "Crusoe" for the Transmeta Crusoe series.
- "Efficeon" for the Transmeta Efficeon series.
- "Winchip-C6" for original IDT Winchip.
@@ -41,7 +42,10 @@ choice
- "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
- "VIA C3-2" for VIA C3-2 "Nehemiah" (model 9 and above).
- "VIA C7" for VIA C7.
+ - "Intel P4" for the Pentium 4/Netburst microarchitecture.
+ - "Core 2/newer Xeon" for all core2 and newer Intel CPUs.
- "Intel Atom" for the Atom-microarchitecture CPUs.
+ - "Generic-x86-64" for a kernel which runs on any x86-64 CPU.
See each option's help text for additional details. If you don't know
what to do, choose "Pentium-Pro".
@@ -135,10 +139,21 @@ config MPENTIUM4
-Mobile Pentium 4
-Mobile Pentium 4 M
-Extreme Edition (Gallatin)
+ -Prescott
+ -Prescott 2M
+ -Cedar Mill
+ -Presler
+ -Smithfiled
Xeons (Intel Xeon, Xeon MP, Xeon LV, Xeon MV) corename:
-Foster
-Prestonia
-Gallatin
+ -Nocona
+ -Irwindale
+ -Cranford
+ -Potomac
+ -Paxville
+ -Dempsey
config MK6
bool "K6/K6-II/K6-III"
@@ -281,6 +296,402 @@ config X86_GENERIC
This is really intended for distributors who need more
generic optimizations.
+choice
+ prompt "x86_64 Compiler Build Optimization"
+ depends on !X86_NATIVE_CPU
+ default GENERIC_CPU
+
+config GENERIC_CPU
+ bool "Generic-x86-64"
+ depends on X86_64
+ help
+ Generic x86-64 CPU.
+ Runs equally well on all x86-64 CPUs.
+
+config MK8
+ 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 Ryzen"
+ help
+ Select this for AMD Family 17h Zen processors.
+
+ Enables -march=znver1
+
+config MZEN2
+ bool "AMD Ryzen 2"
+ help
+ Select this for AMD Family 17h Zen 2 processors.
+
+ Enables -march=znver2
+
+config MZEN3
+ bool "AMD Ryzen 3"
+ depends on (CC_IS_GCC && GCC_VERSION >= 100300) || (CC_IS_CLANG && CLANG_VERSION >= 120000)
+ help
+ Select this for AMD Family 19h Zen 3 processors.
+
+ Enables -march=znver3
+
+config MZEN4
+ bool "AMD Ryzen 4"
+ depends on (CC_IS_GCC && GCC_VERSION >= 130000) || (CC_IS_CLANG && CLANG_VERSION >= 160000)
+ help
+ Select this for AMD Family 19h Zen 4 processors.
+
+ Enables -march=znver4
+
+config MZEN5
+ bool "AMD Ryzen 5"
+ depends on (CC_IS_GCC && GCC_VERSION > 140000) || (CC_IS_CLANG && CLANG_VERSION >= 190100)
+ help
+ Select this for AMD Family 19h Zen 5 processors.
+
+ Enables -march=znver5
+
+config MPSC
+ bool "Intel P4 / older Netburst based Xeon"
+ depends on X86_64
+ help
+ Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
+ Xeon CPUs with Intel 64bit which is compatible with x86-64.
+ Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
+ Netburst core and shouldn't use this option. You can distinguish them
+ using the cpu family field
+ in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
+
+config MCORE2
+ bool "Intel Core 2"
+ depends on X86_64
+ help
+
+ Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and
+ 53xx) CPUs. You can distinguish newer from older Xeons by the CPU
+ family in /proc/cpuinfo. Newer ones have 6 and older ones 15
+ (not a typo)
+
+ Enables -march=core2
+
+config MNEHALEM
+ bool "Intel Nehalem"
+ depends on X86_64
+ help
+
+ Select this for 1st Gen Core processors in the Nehalem family.
+
+ Enables -march=nehalem
+
+config MWESTMERE
+ bool "Intel Westmere"
+ depends on X86_64
+ help
+
+ Select this for the Intel Westmere formerly Nehalem-C family.
+
+ Enables -march=westmere
+
+config MSILVERMONT
+ bool "Intel Silvermont"
+ depends on X86_64
+ help
+
+ Select this for the Intel Silvermont platform.
+
+ Enables -march=silvermont
+
+config MGOLDMONT
+ bool "Intel Goldmont"
+ depends on X86_64
+ help
+
+ Select this for the Intel Goldmont platform including Apollo Lake and Denverton.
+
+ Enables -march=goldmont
+
+config MGOLDMONTPLUS
+ bool "Intel Goldmont Plus"
+ depends on X86_64
+ help
+
+ Select this for the Intel Goldmont Plus platform including Gemini Lake.
+
+ Enables -march=goldmont-plus
+
+config MSANDYBRIDGE
+ bool "Intel Sandy Bridge"
+ depends on X86_64
+ help
+
+ Select this for 2nd Gen Core processors in the Sandy Bridge family.
+
+ Enables -march=sandybridge
+
+config MIVYBRIDGE
+ bool "Intel Ivy Bridge"
+ depends on X86_64
+ help
+
+ Select this for 3rd Gen Core processors in the Ivy Bridge family.
+
+ Enables -march=ivybridge
+
+config MHASWELL
+ bool "Intel Haswell"
+ depends on X86_64
+ help
+
+ Select this for 4th Gen Core processors in the Haswell family.
+
+ Enables -march=haswell
+
+config MBROADWELL
+ bool "Intel Broadwell"
+ depends on X86_64
+ help
+
+ Select this for 5th Gen Core processors in the Broadwell family.
+
+ Enables -march=broadwell
+
+config MSKYLAKE
+ bool "Intel Skylake"
+ depends on X86_64
+ help
+
+ Select this for 6th Gen Core processors in the Skylake family.
+
+ Enables -march=skylake
+
+config MSKYLAKEX
+ bool "Intel Skylake-X (7th Gen Core i7/i9)"
+ depends on X86_64
+ help
+
+ Select this for 7th Gen Core i7/i9 processors in the Skylake-X family.
+
+ Enables -march=skylake-avx512
+
+config MCANNONLAKE
+ bool "Intel Coffee Lake/Kaby Lake Refresh (8th Gen Core i3/i5/i7)"
+ depends on X86_64
+ help
+
+ Select this for 8th Gen Core i3/i5/i7 processors in the Coffee Lake or Kaby Lake Refresh families.
+
+ Enables -march=cannonlake
+
+config MICELAKE_CLIENT
+ bool "Intel Ice Lake"
+ depends on X86_64
+ help
+
+ Select this for 10th Gen Core client processors in the Ice Lake family.
+
+ Enables -march=icelake-client
+
+config MICELAKE_SERVER
+ bool "Intel Ice Lake-SP (3rd Gen Xeon Scalable)"
+ depends on X86_64
+ help
+
+ Select this for 3rd Gen Xeon Scalable processors in the Ice Lake-SP family.
+
+ Enables -march=icelake-server
+
+config MCOOPERLAKE
+ bool "Intel Cooper Lake"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 100100) || (CC_IS_CLANG && CLANG_VERSION >= 100000)
+ help
+
+ Select this for Xeon processors in the Cooper Lake family.
+
+ Enables -march=cooperlake
+
+config MCASCADELAKE
+ bool "Intel Cascade Lake"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 100100) || (CC_IS_CLANG && CLANG_VERSION >= 100000)
+ help
+
+ Select this for Xeon processors in the Cascade Lake family.
+
+ Enables -march=cascadelake
+
+config MTIGERLAKE
+ bool "Intel Tiger Lake"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 100100) || (CC_IS_CLANG && CLANG_VERSION >= 100000)
+ help
+
+ Select this for third-generation 10 nm process processors in the Tiger Lake family.
+
+ Enables -march=tigerlake
+
+config MSAPPHIRERAPIDS
+ bool "Intel Sapphire Rapids"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000)
+ help
+
+ Select this for fourth-generation 10 nm process processors in the Sapphire Rapids family.
+
+ Enables -march=sapphirerapids
+
+config MROCKETLAKE
+ bool "Intel Rocket Lake"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000)
+ help
+
+ Select this for eleventh-generation processors in the Rocket Lake family.
+
+ Enables -march=rocketlake
+
+config MALDERLAKE
+ bool "Intel Alder Lake"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000)
+ help
+
+ Select this for twelfth-generation processors in the Alder Lake family.
+
+ Enables -march=alderlake
+
+config MRAPTORLAKE
+ bool "Intel Raptor Lake"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION >= 130000) || (CC_IS_CLANG && CLANG_VERSION >= 150500)
+ help
+
+ Select this for thirteenth-generation processors in the Raptor Lake family.
+
+ Enables -march=raptorlake
+
+config MMETEORLAKE
+ bool "Intel Meteor Lake"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION >= 130000) || (CC_IS_CLANG && CLANG_VERSION >= 150500)
+ help
+
+ Select this for fourteenth-generation processors in the Meteor Lake family.
+
+ Enables -march=meteorlake
+
+config MEMERALDRAPIDS
+ bool "Intel Emerald Rapids"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 130000) || (CC_IS_CLANG && CLANG_VERSION >= 150500)
+ help
+
+ Select this for fifth-generation Xeon Scalable processors in the Emerald Rapids family.
+
+ Enables -march=emeraldrapids
+
+config MDIAMONDRAPIDS
+ bool "Intel Diamond Rapids (7th Gen Xeon Scalable)"
+ depends on X86_64
+ depends on (CC_IS_GCC && GCC_VERSION > 150000) || (CC_IS_CLANG && CLANG_VERSION >= 200000)
+ help
+
+ Select this for seventh-generation Xeon Scalable processors in the Diamond Rapids family.
+
+ Enables -march=diamondrapids
+
+endchoice
+
+config X86_64_VERSION
+ int "x86-64 compiler ISA level"
+ range 1 3
+ depends on (CC_IS_GCC && GCC_VERSION > 110000) || (CC_IS_CLANG && CLANG_VERSION >= 120000)
+ depends on X86_64 && GENERIC_CPU
+ help
+ Specify a specific x86-64 compiler ISA level.
+
+ There are three x86-64 ISA levels that work on top of
+ the x86-64 baseline, namely: x86-64-v2 and x86-64-v3.
+
+ x86-64-v2 brings support for vector instructions up to Streaming SIMD
+ Extensions 4.2 (SSE4.2) and Supplemental Streaming SIMD Extensions 3
+ (SSSE3), the POPCNT instruction, and CMPXCHG16B.
+
+ x86-64-v3 adds vector instructions up to AVX2, MOVBE, and additional
+ bit-manipulation instructions.
+
+ x86-64-v4 is not included since the kernel does not use AVX512 instructions
+
+ You can find the best version for your CPU by running one of the following:
+ /lib/ld-linux-x86-64.so.2 --help | grep supported
+ /lib64/ld-linux-x86-64.so.2 --help | grep supported
+
#
# Define implied options from the CPU selection here
config X86_INTERNODE_CACHE_SHIFT
@@ -290,8 +701,8 @@ config X86_INTERNODE_CACHE_SHIFT
config X86_L1_CACHE_SHIFT
int
- default "7" if MPENTIUM4
- default "6" if MK7 || MPENTIUMM || MATOM || MVIAC7 || X86_GENERIC || X86_64
+ default "7" if MPENTIUM4 || MPSC
+ default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || MJAGUAR || MBULLDOZER || MPILEDRIVER || MSTEAMROLLER || MEXCAVATOR || MZEN || MZEN2 || MZEN3 || MZEN4 || MZEN5 || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE_CLIENT || MICELAKE_SERVER || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MSAPPHIRERAPIDS || MROCKETLAKE || MALDERLAKE || MRAPTORLAKE || MMETEORLAKE || MEMERALDRAPIDS || MDIAMONDRAPIDS || X86_NATIVE_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
@@ -309,19 +720,19 @@ config X86_ALIGNMENT_16
config X86_INTEL_USERCOPY
def_bool y
- depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK7 || MEFFICEON
+ depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2 || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE_CLIENT || MICELAKE_SERVER || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MSAPPHIRERAPIDS || MROCKETLAKE || MALDERLAKE || MRAPTORLAKE || MMETEORLAKE || MEMERALDRAPIDS || MDIAMONDRAPIDS
config X86_USE_PPRO_CHECKSUM
def_bool y
- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MGEODE_LX || MATOM
+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MVIAC7 || MEFFICEON || MGEODE_LX || MCORE2 || MATOM || MK8SSE3 || MK10 || MBARCELONA || MBOBCAT || MJAGUAR || MBULLDOZER || MPILEDRIVER || MSTEAMROLLER || MEXCAVATOR || MZEN || MZEN2 || MZEN3 || MZEN4 || MZEN5 || MNEHALEM || MWESTMERE || MSILVERMONT || MGOLDMONT || MGOLDMONTPLUS || MSANDYBRIDGE || MIVYBRIDGE || MHASWELL || MBROADWELL || MSKYLAKE || MSKYLAKEX || MCANNONLAKE || MICELAKE_CLIENT || MICELAKE_SERVER || MCASCADELAKE || MCOOPERLAKE || MTIGERLAKE || MSAPPHIRERAPIDS || MROCKETLAKE || MALDERLAKE || MRAPTORLAKE || MMETEORLAKE || MEMERALDRAPIDS || MDIAMONDRAPIDS
config X86_TSC
def_bool y
- depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MATOM) || X86_64
+ 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
config X86_HAVE_PAE
def_bool y
- depends on MCRUSOE || MEFFICEON || MCYRIXIII || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC7 || MATOM || X86_64
+ depends on MCRUSOE || MEFFICEON || MCYRIXIII || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC7 || MCORE2 || MATOM || X86_64
config X86_CX8
def_bool y
@@ -331,12 +742,12 @@ config X86_CX8
# generates cmov.
config X86_CMOV
def_bool y
- depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || MATOM || MGEODE_LX || X86_64)
+ depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
config X86_MINIMUM_CPU_FAMILY
int
default "64" if X86_64
- default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MK7)
+ default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MCORE2 || MK7 || MK8)
default "5" if X86_32 && X86_CX8
default "4"
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 1913d342969b..6c165daccb3d 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -177,10 +177,221 @@ ifdef CONFIG_X86_NATIVE_CPU
KBUILD_CFLAGS += -march=native
KBUILD_RUSTFLAGS += -Ctarget-cpu=native
else
+ifdef CONFIG_MK8
+ KBUILD_CFLAGS += -march=k8
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=k8
+endif
+
+ifdef CONFIG_MK8SSE3
+ KBUILD_CFLAGS += -march=k8-sse3
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=k8-sse3
+endif
+
+ifdef CONFIG_MK10
+ KBUILD_CFLAGS += -march=amdfam10
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=amdfam10
+endif
+
+ifdef CONFIG_MBARCELONA
+ KBUILD_CFLAGS += -march=barcelona
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=barcelona
+endif
+
+ifdef CONFIG_MBOBCAT
+ KBUILD_CFLAGS += -march=btver1
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=btver1
+endif
+
+ifdef CONFIG_MJAGUAR
+ KBUILD_CFLAGS += -march=btver2
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=btver2
+endif
+
+ifdef CONFIG_MBULLDOZER
+ KBUILD_CFLAGS += -march=bdver1
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=bdver1
+endif
+
+ifdef CONFIG_MPILEDRIVER
+ KBUILD_CFLAGS += -march=bdver2 -mno-tbm
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=bdver2 -mno-tbm
+endif
+
+ifdef CONFIG_MSTEAMROLLER
+ KBUILD_CFLAGS += -march=bdver3 -mno-tbm
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=bdver3 -mno-tbm
+endif
+
+ifdef CONFIG_MEXCAVATOR
+ KBUILD_CFLAGS += -march=bdver4 -mno-tbm
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=bdver4 -mno-tbm
+endif
+
+ifdef CONFIG_MZEN
+ KBUILD_CFLAGS += -march=znver1
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=znver1
+endif
+
+ifdef CONFIG_MZEN2
+ KBUILD_CFLAGS += -march=znver2
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=znver2
+endif
+
+ifdef CONFIG_MZEN3
+ KBUILD_CFLAGS += -march=znver3
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=znver3
+endif
+
+ifdef CONFIG_MZEN4
+ KBUILD_CFLAGS += -march=znver4
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=znver4
+endif
+
+ifdef CONFIG_MZEN5
+ KBUILD_CFLAGS += -march=znver5
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=znver5
+endif
+
+ifdef CONFIG_MPSC
+ KBUILD_CFLAGS += -march=nocona
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=nocona
+endif
+
+ifdef CONFIG_MCORE2
+ KBUILD_CFLAGS += -march=core2
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=core2
+endif
+
+ifdef CONFIG_MNEHALEM
+ KBUILD_CFLAGS += -march=nehalem
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=nehalem
+endif
+
+ifdef CONFIG_MWESTMERE
+ KBUILD_CFLAGS += -march=westmere
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=westmere
+endif
+
+ifdef CONFIG_MSILVERMONT
+ KBUILD_CFLAGS += -march=silvermont
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=silvermont
+endif
+
+ifdef CONFIG_MGOLDMONT
+ KBUILD_CFLAGS += -march=goldmont
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=goldmont
+endif
+
+ifdef CONFIG_MGOLDMONTPLUS
+ KBUILD_CFLAGS += -march=goldmont-plus
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=goldmont-plus
+endif
+
+ifdef CONFIG_MSANDYBRIDGE
+ KBUILD_CFLAGS += -march=sandybridge
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=sandybridge
+endif
+
+ifdef CONFIG_MIVYBRIDGE
+ KBUILD_CFLAGS += -march=ivybridge
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=ivybridge
+endif
+
+ifdef CONFIG_MHASWELL
+ KBUILD_CFLAGS += -march=haswell
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=haswell
+endif
+
+ifdef CONFIG_MBROADWELL
+ KBUILD_CFLAGS += -march=broadwell
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=broadwell
+endif
+
+ifdef CONFIG_MSKYLAKE
+ KBUILD_CFLAGS += -march=skylake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=skylake
+endif
+
+ifdef CONFIG_MSKYLAKEX
+ KBUILD_CFLAGS += -march=skylake-avx512
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=skylake-avx512
+endif
+
+ifdef CONFIG_MCANNONLAKE
+ KBUILD_CFLAGS += -march=cannonlake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=cannonlake
+endif
+
+ifdef CONFIG_MICELAKE_CLIENT
+ KBUILD_CFLAGS += -march=icelake-client
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=icelake-client
+endif
+
+ifdef CONFIG_MICELAKE_SERVER
+ KBUILD_CFLAGS += -march=icelake-server
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=icelake-server
+endif
+
+ifdef CONFIG_MCOOPERLAKE
+ KBUILD_CFLAGS += -march=cooperlake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=cooperlake
+endif
+
+ifdef CONFIG_MCASCADELAKE
+ KBUILD_CFLAGS += -march=cascadelake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=cascadelake
+endif
+
+ifdef CONFIG_MTIGERLAKE
+ KBUILD_CFLAGS += -march=tigerlake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=tigerlake
+endif
+
+ifdef CONFIG_MSAPPHIRERAPIDS
+ KBUILD_CFLAGS += -march=sapphirerapids
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=sapphirerapids
+endif
+
+ifdef CONFIG_MROCKETLAKE
+ KBUILD_CFLAGS += -march=rocketlake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=rocketlake
+endif
+
+ifdef CONFIG_MALDERLAKE
+ KBUILD_CFLAGS += -march=alderlake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=alderlake
+endif
+
+ifdef CONFIG_MRAPTORLAKE
+ KBUILD_CFLAGS += -march=raptorlake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=raptorlake
+endif
+
+ifdef CONFIG_MMETEORLAKE
+ KBUILD_CFLAGS += -march=meteorlake
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=meteorlake
+endif
+
+ifdef CONFIG_MEMERALDRAPIDS
+ KBUILD_CFLAGS += -march=emeraldrapids
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=emeraldrapids
+endif
+
+ifdef CONFIG_MDIAMONDRAPIDS
+ KBUILD_CFLAGS += -march=diamondrapids
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=diamondrapids
+endif
+
+ifdef CONFIG_GENERIC_CPU
+ifeq ($(CONFIG_X86_64_VERSION),1)
KBUILD_CFLAGS += -march=x86-64 -mtune=generic
KBUILD_RUSTFLAGS += -Ctarget-cpu=x86-64 -Ztune-cpu=generic
+else
+ KBUILD_CFLAGS +=-march=x86-64-v$(CONFIG_X86_64_VERSION)
+ KBUILD_RUSTFLAGS += -Ctarget-cpu=x86-64-v$(CONFIG_X86_64_VERSION)
+endif
+endif
endif
-
KBUILD_CFLAGS += -mno-red-zone
KBUILD_CFLAGS += -mcmodel=kernel
KBUILD_RUSTFLAGS += -Cno-redzone=y
--
2.50.1