I keep telling myself that those tables aren't great because their size is the number of dwords we need to program and not the number of entries (number of dwords = number of entries * 2).
And... I got it wrong when I refactored the code. Fortunately, it was only wrong when the VBT table (or the code parsing it) is itself erroneous. Long story short, it shouldn't matter, but still, there's a potential array overflow and random programming of the DDI translation tables. Cc: Paulo Zanoni <[email protected]> Signed-off-by: Damien Lespiau <[email protected]> --- drivers/gpu/drm/i915/intel_ddi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index ca1f9a8..02d5584 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -169,14 +169,14 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port) ddi_translations_dp = bdw_ddi_translations_dp; ddi_translations_edp = bdw_ddi_translations_edp; ddi_translations_hdmi = bdw_ddi_translations_hdmi; - n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); + n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi) / 2; hdmi_800mV_0dB = 7; } else if (IS_HASWELL(dev)) { ddi_translations_fdi = hsw_ddi_translations_fdi; ddi_translations_dp = hsw_ddi_translations_dp; ddi_translations_edp = hsw_ddi_translations_dp; ddi_translations_hdmi = hsw_ddi_translations_hdmi; - n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi); + n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi) / 2; hdmi_800mV_0dB = 6; } else { WARN(1, "ddi translation table missing\n"); @@ -184,7 +184,7 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port) ddi_translations_fdi = bdw_ddi_translations_fdi; ddi_translations_dp = bdw_ddi_translations_dp; ddi_translations_hdmi = bdw_ddi_translations_hdmi; - n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); + n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi) / 2; hdmi_800mV_0dB = 7; } -- 1.8.3.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
