From 1d0a6c8486aa53f7545e80f5f0293ed99e48ffc0 Mon Sep 17 00:00:00 2001 From: Stanislav Lisovskiy Date: Wed, 13 May 2020 12:38:12 +0300 Subject: [PATCH] drm/i915: Extract skl SAGV checking MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce platform dependent SAGV checking in combination with bandwidth state pipe SAGV mask. This is preparation to adding TGL support, which requires different way of SAGV checking. v2, v3, v4, v5, v6: Fix rebase conflict v7: - Nuke icl specific function, use skl for icl as well, gen specific active_pipes check to be added in the next patch(Ville) v8: - Use more generic intel_crtc_can_enable_sagv for checking(Ville) Signed-off-by: Stanislav Lisovskiy Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20200513093816.11466-3-stanislav.lisovskiy@intel.com --- drivers/gpu/drm/i915/intel_pm.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 24f1ef8e8a08..3df8e60c6153 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3804,7 +3804,7 @@ void intel_sagv_post_plane_update(struct intel_atomic_state *state) intel_enable_sagv(dev_priv); } -static bool intel_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state) +static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); @@ -3853,6 +3853,11 @@ static bool intel_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state return true; } +static bool intel_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state) +{ + return skl_crtc_can_enable_sagv(crtc_state); +} + bool intel_can_enable_sagv(const struct intel_bw_state *bw_state) { if (bw_state->active_pipes && !is_power_of_2(bw_state->active_pipes)) @@ -3865,7 +3870,7 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state) { int ret; struct intel_crtc *crtc; - struct intel_crtc_state *new_crtc_state; + const struct intel_crtc_state *new_crtc_state; struct intel_bw_state *new_bw_state = NULL; const struct intel_bw_state *old_bw_state = NULL; int i; @@ -3889,6 +3894,7 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state) new_bw_state->active_pipes = intel_calc_active_pipes(state, old_bw_state->active_pipes); + if (new_bw_state->active_pipes != old_bw_state->active_pipes) { ret = intel_atomic_lock_global_state(&new_bw_state->base); if (ret)