From 74bd8004e475d67eb41f6795cda5efac03d010b8 Mon Sep 17 00:00:00 2001 From: Mahesh Kumar Date: Thu, 26 Apr 2018 19:55:15 +0530 Subject: drm/i915/icl: track dbuf slice-2 status This patch adds support to start tracking status of DBUF slices. This is foundation to introduce support for enabling/disabling second DBUF slice dynamically for ICL. Changes Since V1: - use kernel type u8 over uint8_t Signed-off-by: Mahesh Kumar Reviewed-by: James Ausmus Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20180426142517.16643-2-mahesh1.kumar@intel.com --- drivers/gpu/drm/i915/intel_runtime_pm.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_runtime_pm.c') diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index ec59992cf87a..afc6ef81ca0c 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -2656,6 +2656,8 @@ static void icl_dbuf_enable(struct drm_i915_private *dev_priv) if (!(I915_READ(DBUF_CTL_S1) & DBUF_POWER_STATE) || !(I915_READ(DBUF_CTL_S2) & DBUF_POWER_STATE)) DRM_ERROR("DBuf power enable timeout\n"); + else + dev_priv->wm.skl_hw.ddb.enabled_slices = 2; } static void icl_dbuf_disable(struct drm_i915_private *dev_priv) @@ -2669,6 +2671,8 @@ static void icl_dbuf_disable(struct drm_i915_private *dev_priv) if ((I915_READ(DBUF_CTL_S1) & DBUF_POWER_STATE) || (I915_READ(DBUF_CTL_S2) & DBUF_POWER_STATE)) DRM_ERROR("DBuf power disable timeout!\n"); + else + dev_priv->wm.skl_hw.ddb.enabled_slices = 0; } static void icl_mbus_init(struct drm_i915_private *dev_priv) -- cgit v1.2.3