AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-02 05:27:00 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/i915: Add SNB/IVB support to intel_read_wm_latency

Browse Source 
SNB and IVB have slightly a different way to read out the
watermark latency values.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2013-07-05 11:57:23 +03:00 committed by Daniel Vetter
parent e5d5019e95
commit 63cf9a131e
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/i915/intel_pm.c
View File

@ -2365,6 +2365,13 @@ static void intel_read_wm_latency(struct drm_device *dev, uint16_t wm[5])
wm[2] = (sskpd >> 12) & 0xFF;
wm[3] = (sskpd >> 20) & 0x1FF;
wm[4] = (sskpd >> 32) & 0x1FF;
} else if (INTEL_INFO(dev)->gen >= 6) {
uint32_t sskpd = I915_READ(MCH_SSKPD);
wm[0] = (sskpd >> SSKPD_WM0_SHIFT) & SSKPD_WM_MASK;
wm[1] = (sskpd >> SSKPD_WM1_SHIFT) & SSKPD_WM_MASK;
wm[2] = (sskpd >> SSKPD_WM2_SHIFT) & SSKPD_WM_MASK;
wm[3] = (sskpd >> SSKPD_WM3_SHIFT) & SSKPD_WM_MASK;
}
}