On Thu, Apr 14, 2016 at 07:48:13AM -0700, Ben Widawsky wrote: > On Thu, Apr 14, 2016 at 11:14:48AM +0300, Jani Nikula wrote: > > On Thu, 14 Apr 2016, Jani Nikula <[email protected]> wrote: > > > On Wed, 13 Apr 2016, Ben Widawsky <[email protected]> wrote: > > >> The two behavioral changes here are the correct detection of the eDRAM > > >> size on > > >> gen9 (SKL + KBL), and unconditional printing of the eLLC size. > > >> > > >> Cc: Eero Tamminen <[email protected]> > > >> Signed-off-by: Ben Widawsky <[email protected]> > > > > > > Please see [1]. > > > > > > BR, > > > Jani. > > > > > > > > > [1] > > > http://patchwork.freedesktop.org/patch/msgid/[email protected] > > > > I did mean to refer to the entire series > > > > https://patchwork.freedesktop.org/series/5663/ > > > > > > My patch is more correct as it does the proper calculation. >
Oh. He did it as two patches with the first claiming we can't make the calculation... that was odd. Anyway, assuming it does the right thing patches 2, and 3 are: Acked-by: Ben Widawsky <[email protected]> > > > > > > > > >> --- > > >> drivers/gpu/drm/i915/intel_uncore.c | 16 +++++++++++++--- > > >> 1 file changed, 13 insertions(+), 3 deletions(-) > > >> > > >> diff --git a/drivers/gpu/drm/i915/intel_uncore.c > > >> b/drivers/gpu/drm/i915/intel_uncore.c > > >> index fbc1d21..efef724 100644 > > >> --- a/drivers/gpu/drm/i915/intel_uncore.c > > >> +++ b/drivers/gpu/drm/i915/intel_uncore.c > > >> @@ -314,8 +314,17 @@ static void intel_uncore_ellc_detect(struct > > >> drm_device *dev) > > >> { > > >> struct drm_i915_private *dev_priv = dev->dev_private; > > >> > > >> - if ((IS_HASWELL(dev) || IS_BROADWELL(dev) || > > >> - INTEL_INFO(dev)->gen >= 9) && > > >> + if (INTEL_INFO(dev)->gen >= 9 && HAS_LLC(dev)) { > > >> + u32 edramcap = __raw_i915_read32(dev_priv, > > >> HSW_EDRAM_PRESENT); > > >> + if (edramcap & EDRAM_ENABLED) { > > >> + int sets = (edramcap >> 8) & 0x3; > > >> + int ways = (edramcap >> 5) & 0x7; > > >> + int banks = (edramcap >> 1) & 0xf; > > >> + > > >> + ways = (ways + 1) * 4; > > >> + dev_priv->ellc_size = sets * ways * banks; > > >> + } > > >> + } else if ((IS_HASWELL(dev) || IS_BROADWELL(dev)) && > > >> (__raw_i915_read32(dev_priv, HSW_EDRAM_PRESENT) & > > >> EDRAM_ENABLED)) { > > >> /* The docs do not explain exactly how the calculation > > >> can be > > >> * made. It is somewhat guessable, but for now, it's > > >> always > > >> @@ -323,8 +332,9 @@ static void intel_uncore_ellc_detect(struct > > >> drm_device *dev) > > >> * NB: We can't write IDICR yet because we do not have > > >> gt funcs > > >> * set up */ > > >> dev_priv->ellc_size = 128; > > >> - DRM_INFO("Found %zuMB of eLLC\n", dev_priv->ellc_size); > > >> } > > >> + > > >> + DRM_INFO("Found %zuMB of eLLC\n", dev_priv->ellc_size); > > >> } > > >> > > >> static bool > > > > -- > > Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
