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authorTobias Geerinckx-Rice <me@tobias.gr>2018-08-30 17:50:48 +0200
committerTobias Geerinckx-Rice <me@tobias.gr>2018-08-30 19:28:10 +0200
commit6e8c75b88435550906e251dd4a9c2eb732f803d4 (patch)
tree8802f89b605a48dc98c2cf6d2973106e0cf6e6e9 /gnu/packages/hardware.scm
parentaadd1d241cc9891a857dda9a5cf8389673b3c76c (diff)
gnu: Add msr-tools.
* gnu/packages/hardware.scm (msr-tools): New public variable.
Diffstat (limited to 'gnu/packages/hardware.scm')
-rw-r--r--gnu/packages/hardware.scm49
1 files changed, 49 insertions, 0 deletions
diff --git a/gnu/packages/hardware.scm b/gnu/packages/hardware.scm
index d3a99af358..f77336e504 100644
--- a/gnu/packages/hardware.scm
+++ b/gnu/packages/hardware.scm
@@ -73,3 +73,52 @@ ddcutil allows colour-related settings to be saved at the time a monitor is
calibrated, and restored when the calibration is applied.")
(license (list license:bsd-3 ; FindDDCUtil.cmake
license:gpl2+)))) ; everything else
+
+(define-public msr-tools
+ (package
+ (name "msr-tools")
+ (version "1.3")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append "https://01.org/sites/default/files/downloads/"
+ name "/" name "-" version ".zip"))
+ (sha256
+ (base32 "07hxmddg0l31kjfmaq84ni142lbbvgq6391r8bd79wpm819pnigr"))))
+ (build-system gnu-build-system)
+ (arguments
+ `(#:make-flags
+ (list (string-append "sbindir=" (assoc-ref %outputs "out") "/sbin"))
+ #:phases
+ (modify-phases %standard-phases
+ (delete 'configure) ; no configure script
+ (add-before 'install 'create-output-directory
+ (lambda* (#:key outputs #:allow-other-keys)
+ ;; 'make install' assumes that sbindir exists.
+ (let* ((out (assoc-ref outputs "out"))
+ (sbin (string-append out "/sbin")))
+ (mkdir-p sbin)
+ #t))))
+ #:tests? #f)) ; no test suite
+ (native-inputs
+ `(("unzip" ,unzip)))
+ ;; These registers and the CPUID instruction only exist on (most) x86 chips.
+ (supported-systems (list "i686-linux" "x86_64-linux"))
+ (home-page "https://01.org/msr-tools/")
+ (synopsis "Read and write Model-Specific Registers (@dfn{MSR})")
+ (description
+ "The MSR Tools project provides console utilities to directly access the
+Model-Specific Registers (@dfn{MSR}s) and CPU ID of Intel-compatible processors:
+
+@itemize
+@item @command{cpuid}: show identification and feature information of any CPU
+@item @command{rdmsr}: read MSRs from any CPU or all CPUs
+@item @command{wrmsr}: write to MSRs on any CPU or all CPUs
+@end itemize
+
+These tools can be used to query and modify certain low-level CPU parameters,
+such as the Turbo Boost ratio and Thermal Design Power (@dfn{TDP}) limits.
+
+MSR addresses differ (greatly) between processors, and any such modification can
+be dangerous and may void your CPU or system board's warranty.")
+ (license license:gpl2))) ; cpuid.c is gpl2, {rd,wr}msr.c are gpl2+