update readme

README.md

@@ -1,6 +1,6 @@
 TuxClocker - A GUI overclocking utility for GNU/Linux
 ========================================
-TuxClocker is a Qt5 overclocking tool. Currently supported cards are nvidia 600-series cards and newer. Support for AMD GPUs is planned.
+TuxClocker is a Qt5 overclocking tool. Currently supported cards are nvidia 600-series cards and newer, and AMD GPUs using the amdgpu driver until (not including) Radeon VII.
 
 # Screenshots
 
@@ -11,24 +11,26 @@ TuxClocker is a Qt5 overclocking tool. Currently supported cards are nvidia 600-
 - Overclocking
 - Overvolting
 - Change power limit
+- (AMD) pstate editing
 - Fan mode selection
 - Custom fan curve
 - Provisional multi-GPU support
 - Profiles
 
-# Features in development
-- AMD support
-
-# Requirements
+# Requirements (nvidia)
+- NOTE: headers are usually included in a package named \*-dev, if they are separate
 - nvidia-smi
 - nvidia-settings
 - libxnvctrl and headers (if not included in nvidia-settings)
-- Qt 5 base libraries and x11extras
-- Coolbits set to the value you want (31 for all functionality)
+- qt5base, x11extras and their headers
+- [Coolbits](https://wiki.archlinux.org/index.php/NVIDIA/Tips_and_tricks#Enabling_overclocking) set to the value you want (31 for all functionality)
 
-# Installation
+# Installation (nvidia)
 
 ### Compilation
+
+NOTE: on some systems, qmake is linked to qt4-qmake. If qmake fails, run qmake-qt5 in place of qmake
+
 ```
 git clone https://github.com/Lurkki14/tuxclocker
 cd tuxclocker
@@ -40,5 +42,40 @@ make install (installs into /opt/tuxclocker/bin)
 #### AUR package
 [https://aur.archlinux.org/packages/tuxclocker/](https://aur.archlinux.org/packages/tuxclocker/)
 
+# Requirements (AMD)
+
+- NOTE: headers are usually included in a package named \*-dev, if they are separate
+- libdrm and headers
+- amdgpu.ppfeaturemask boot paramter set to the value you want. To view the current value, run 
+
+```
+printf "0x%08x\n" $(cat /sys/module/amdgpu/parameters/ppfeaturemask)
+```
+
 
+	Example grub line (usually /etc/default/grub):	
+
+```
+GRUB_CMDLINE_LINUX_DEFAULT="quiet radeon.si_support=0 amdgpu.si_support=1 amdgpu.dpm=1 amdgpu.ppfeaturemask=0xffffffff"
+```
+
+	After editing, update grub, usually 
+```
+sudo update-grub
+```
 
+# Installation (AMD)
+
+### Compilation
+
+NOTE: on some, systems, qmake is linked to qt4-qmake. If qmake fails, run qmake-qt5 in place of qmake
+
+```
+git clone https://github.com/Lurkki14/tuxclocker
+cd tuxclocker
+git checkout pstatetest
+qmake rojekti.pro
+make
+make install (installs into /opt/tuxclocker/bin)
+```
+NOTE: to use fancurves on the AMD version, you need to run as root.