From: José Roberto de Souza Date: Thu, 18 Aug 2022 23:42:00 +0000 (-0700) Subject: drm/i915/display/mtl: Extend MBUS programming X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f02c7d5a8fa3ecf7a20f25815bb30a967fa18885;p=linux.git drm/i915/display/mtl: Extend MBUS programming Display version 14 also supports MBUS joining just like ADL-P and also it does not need MBUS initialization, so extending ADL-P code paths to display version 14 and higher. Bspec: 49213 Reviewed-by: Matt Roper Signed-off-by: José Roberto de Souza Signed-off-by: Radhakrishna Sripada Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-20-radhakrishna.sripada@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 9c1fefb2da550..439d56c3814fa 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -1102,7 +1102,7 @@ static void icl_mbus_init(struct drm_i915_private *dev_priv) unsigned long abox_regs = INTEL_INFO(dev_priv)->display.abox_mask; u32 mask, val, i; - if (IS_ALDERLAKE_P(dev_priv)) + if (IS_ALDERLAKE_P(dev_priv) || DISPLAY_VER(dev_priv) >= 14) return; mask = MBUS_ABOX_BT_CREDIT_POOL1_MASK | diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index f28d681c09e03..49fb10add40e1 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1358,7 +1358,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \ IS_ALDERLAKE_S(dev_priv)) -#define HAS_MBUS_JOINING(i915) (IS_ALDERLAKE_P(i915)) +#define HAS_MBUS_JOINING(i915) (IS_ALDERLAKE_P(i915) || DISPLAY_VER(i915) >= 14) #define HAS_3D_PIPELINE(i915) (INTEL_INFO(i915)->has_3d_pipeline)