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authorMika Kuoppala <mika.kuoppala@linux.intel.com>2015-11-17 18:14:26 +0200
committerJani Nikula <jani.nikula@intel.com>2015-11-18 11:22:07 +0200
commit0f94592efd36213c961145fe1ab0c3bc323ec053 (patch)
treec75b48bf7ab42ac42f73d976a76cf0a417d70d04 /drivers/gpu/drm/i915/intel_display.c
parentdrm/i915: Don't clobber the addfb2 ioctl params (diff)
downloadlinux-dev-0f94592efd36213c961145fe1ab0c3bc323ec053.tar.xz
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drm/i915: Fix gpu frequency change tracing
With gen < 9 we have had always 50Mhz units as our hw ratio. With gen >= 9 the hw ratio changed to 16.667Mhz (50/3). The result was that our gpu frequency tracing started to output values 3 times larger than expected due to hardcoded scaling value. Fix this by using Use intel_gpu_freq() when generating Mhz value from ratio for 'intel_gpu_freq_change' trace event. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92591 Cc: stable@vger.kernel.org # v4.3+ Reported-by: Eero Tamminen <eero.t.tamminen@intel.com> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1447776866-29384-1-git-send-email-mika.kuoppala@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
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