gallium/hud: Add support for block I/O, network I/O and lmsensor stats

V8: Feedback based on peer review
    convert if block into a switch
    Constify some func args

V7: Increase precision when measuring lmsensors volts
    Flatten patch series.

V6: Feedback based on peer review
    Simplify sensor initialization (arg passing).
    Constify some func args

V5: Feedback based on peer review
    Convert sprintf to snprintf
    Convert char * to const char *
    int arg converted to bool
    Func changes to take a filename vs a larger struct.
    Omit the space between '*' and the param name.

V4: Merged with master as of 2016/9/27 6pm

V3: Flatten the entire patchset ready for the ML

V2: Additional seperate patches based on feedback
a) configure.ac: Add a comment related to libsensors

b) HUD: Disable Block/NIC I/O stats by default.
Implement configuration option --enable-gallium-extra-hud=yes
and enable both statistics when this option is enabled.

c) Configure.ac: Minor cleanup to user visible configuration settings

d) Configure.ac: HUD stats - build system improvements
Move the -lsensors out of a deeper Makefile, bring it into the configure.ac.
Also, rename a compiler directive to more closely follow the standard.

V1: Initial release to the ML
Three new features:
1. Disk/block I/O device read/write stats MB/ps.
2. Network Interface RX/TX transfer statistics as a percentage
   of the overall NIC speed.
3. lmsensor power, voltage and temperature sensors.

The lmsensor changes makes a dependency on libsensors so support
for the change is opt out by default.

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index c702b53..1bfac3b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -91,6 +91,7 @@ XCBGLX_REQUIRED=1.8.1
 XSHMFENCE_REQUIRED=1.1
 XVMC_REQUIRED=1.0.6
 PYTHON_MAKO_REQUIRED=0.8.0
+LIBSENSORS_REQUIRED=4.0.0
 
 dnl Check for progs
 AC_PROG_CPP
@@ -871,6 +872,32 @@ AC_ARG_ENABLE([dri],
     [enable_dri="$enableval"],
     [enable_dri=yes])
 
+AC_ARG_ENABLE([gallium-extra-hud],
+    [AS_HELP_STRING([--enable-gallium-extra-hud],
+        [enable HUD block/NIC I/O HUD stats support @<:@default=disabled@:>@])],
+    [enable_gallium_extra_hud="$enableval"],
+    [enable_gallium_extra_hud=no])
+AM_CONDITIONAL(HAVE_GALLIUM_EXTRA_HUD, test "x$enable_gallium_extra_hud" = xyes)
+if test "x$enable_gallium_extra_hud" = xyes ; then
+    DEFINES="${DEFINES} -DHAVE_GALLIUM_EXTRA_HUD=1"
+fi
+
+#TODO: no pkgconfig .pc available for libsensors.
+#PKG_CHECK_MODULES([LIBSENSORS], [libsensors >= $LIBSENSORS_REQUIRED], [enable_lmsensors=yes], [enable_lmsensors=no])
+AC_ARG_ENABLE([lmsensors],
+    [AS_HELP_STRING([--enable-lmsensors],
+        [enable HUD lmsensor support @<:@default=disabled@:>@])],
+    [enable_lmsensors="$enableval"],
+    [enable_lmsensors=no])
+AM_CONDITIONAL(HAVE_LIBSENSORS, test "x$enable_lmsensors" = xyes)
+if test "x$enable_lmsensors" = xyes ; then
+    DEFINES="${DEFINES} -DHAVE_LIBSENSORS=1"
+    LIBSENSORS_LDFLAGS="-lsensors"
+else
+    LIBSENSORS_LDFLAGS=""
+fi
+AC_SUBST(LIBSENSORS_LDFLAGS)
+
 case "$host_os" in
 linux*)
     dri3_default=yes
@@ -1124,6 +1151,8 @@ AM_CONDITIONAL(HAVE_DRISW_KMS, test "x$have_drisw_kms" = xyes )
 AM_CONDITIONAL(HAVE_DRI2, test "x$enable_dri" = xyes -a "x$dri_platform" = xdrm -a "x$have_libdrm" = xyes )
 AM_CONDITIONAL(HAVE_DRI3, test "x$enable_dri3" = xyes -a "x$dri_platform" = xdrm -a "x$have_libdrm" = xyes )
 AM_CONDITIONAL(HAVE_APPLEDRI, test "x$enable_dri" = xyes -a "x$dri_platform" = xapple )
+AM_CONDITIONAL(HAVE_LMSENSORS, test "x$enable_lmsensors" = xyes )
+AM_CONDITIONAL(HAVE_GALLIUM_EXTRA_HUD, test "x$enable_gallium_extra_hud" = xyes )
 AM_CONDITIONAL(HAVE_WINDOWSDRI, test "x$enable_dri" = xyes -a "x$dri_platform" = xwindows )
 
 AC_ARG_ENABLE([shared-glapi],
@@ -2891,6 +2920,19 @@ else
     echo "        Gallium:         no"
 fi
 
+echo ""
+if test "x$enable_gallium_extra_hud" != xyes; then
+    echo "        HUD extra stats: no"
+else
+    echo "        HUD extra stats: yes"
+fi
+
+if test "x$enable_lmsensors" != xyes; then
+    echo "        HUD lmsensors:   no"
+else
+    echo "        HUD lmsensors:   yes"
+fi
+
 dnl Shader cache
 echo ""
 echo "        Shader cache:    $enable_shader_cache"