From: Ville Syrjälä Date: Tue, 23 Sep 2025 17:19:37 +0000 (+0300) Subject: drm/i915/cdclk: Move intel_bw_crtc_min_cdclk() handling into intel_crtc_compute_min_c... X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3d23ce8c55265c05966307fb8a3615d05be33cdd;p=thirdparty%2Fkernel%2Flinux.git drm/i915/cdclk: Move intel_bw_crtc_min_cdclk() handling into intel_crtc_compute_min_cdclk() intel_bw_crtc_min_cdclk() depends only on per-crtc state, so there is no real point in having it complicate the global bw_min_cdclk. Instead let's just account for it in intel_crtc_compute_min_cdclk(). Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20250923171943.7319-16-ville.syrjala@linux.intel.com Reviewed-by: Mika Kahola --- diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 7499ddec2b140..b53bcb693e798 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -871,13 +871,14 @@ static unsigned int intel_bw_crtc_data_rate(const struct intel_crtc_state *crtc_ } /* "Maximum Pipe Read Bandwidth" */ -static int intel_bw_crtc_min_cdclk(struct intel_display *display, - unsigned int data_rate) +int intel_bw_crtc_min_cdclk(const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(crtc_state); + if (DISPLAY_VER(display) < 12) return 0; - return DIV_ROUND_UP_ULL(mul_u32_u32(data_rate, 10), 512); + return DIV_ROUND_UP_ULL(mul_u32_u32(intel_bw_crtc_data_rate(crtc_state), 10), 512); } static unsigned int intel_bw_num_active_planes(struct intel_display *display, @@ -1292,10 +1293,6 @@ static bool intel_bw_state_changed(struct intel_display *display, if (intel_dbuf_bw_changed(display, old_dbuf_bw, new_dbuf_bw)) return true; - - if (intel_bw_crtc_min_cdclk(display, old_bw_state->data_rate[pipe]) != - intel_bw_crtc_min_cdclk(display, new_bw_state->data_rate[pipe])) - return true; } return false; @@ -1386,16 +1383,10 @@ intel_bw_dbuf_min_cdclk(struct intel_display *display, int intel_bw_min_cdclk(struct intel_display *display, const struct intel_bw_state *bw_state) { - enum pipe pipe; int min_cdclk; min_cdclk = intel_bw_dbuf_min_cdclk(display, bw_state); - for_each_pipe(display, pipe) - min_cdclk = max(min_cdclk, - intel_bw_crtc_min_cdclk(display, - bw_state->data_rate[pipe])); - return min_cdclk; } diff --git a/drivers/gpu/drm/i915/display/intel_bw.h b/drivers/gpu/drm/i915/display/intel_bw.h index c064e80a7a7ff..4bb3a637b2955 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.h +++ b/drivers/gpu/drm/i915/display/intel_bw.h @@ -29,6 +29,7 @@ intel_atomic_get_bw_state(struct intel_atomic_state *state); void intel_bw_init_hw(struct intel_display *display); int intel_bw_init(struct intel_display *display); int intel_bw_atomic_check(struct intel_atomic_state *state); +int intel_bw_crtc_min_cdclk(const struct intel_crtc_state *crtc_state); int intel_bw_calc_min_cdclk(struct intel_atomic_state *state, bool *need_cdclk_calc); int intel_bw_min_cdclk(struct intel_display *display, diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index 1241dd0fb343e..b45b84293cba2 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -2828,6 +2828,7 @@ static int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_stat return 0; min_cdclk = intel_pixel_rate_to_cdclk(crtc_state); + min_cdclk = max(min_cdclk, intel_bw_crtc_min_cdclk(crtc_state)); min_cdclk = max(min_cdclk, hsw_ips_min_cdclk(crtc_state)); min_cdclk = max(min_cdclk, intel_audio_min_cdclk(crtc_state)); min_cdclk = max(min_cdclk, vlv_dsi_min_cdclk(crtc_state));