From: Ville Syrjälä <ville.syrj...@linux.intel.com>
The normal cdclk handling now takes care of making sure the
plane's pixel rate doesn't exceed the spec appointed percentage
of the cdclk frequency. Thus we can nuke
skl_check_pipe_max_pixel_rate().
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikk...@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 2 -
drivers/gpu/drm/i915/intel_pm.c | 87 --------------------
drivers/gpu/drm/i915/intel_pm.h | 2 -
3 files changed, 91 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c
b/drivers/gpu/drm/i915/display/intel_display.c
index 67bb5fa03b2b..cbc807ea08c5 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -11887,8 +11887,6 @@ static int intel_crtc_atomic_check(struct
intel_atomic_state *state,
if (INTEL_GEN(dev_priv) >= 9) {
if (mode_changed || crtc_state->update_pipe)
ret = skl_update_scaler_crtc(crtc_state);
- if (!ret)
- ret = skl_check_pipe_max_pixel_rate(crtc, crtc_state);
if (!ret)
ret = intel_atomic_setup_scalers(dev_priv, crtc,
crtc_state);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index b306e2338f5a..643b6b65fba8 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4096,93 +4096,6 @@ skl_plane_downscale_amount(const struct intel_crtc_state
*crtc_state,
return mul_fixed16(downscale_w, downscale_h);
}
-static uint_fixed_16_16_t
-skl_pipe_downscale_amount(const struct intel_crtc_state *crtc_state)
-{
- uint_fixed_16_16_t pipe_downscale = u32_to_fixed16(1);
-
- if (!crtc_state->base.enable)
- return pipe_downscale;
-
- if (crtc_state->pch_pfit.enabled) {
- u32 src_w, src_h, dst_w, dst_h;
- u32 pfit_size = crtc_state->pch_pfit.size;
- uint_fixed_16_16_t fp_w_ratio, fp_h_ratio;
- uint_fixed_16_16_t downscale_h, downscale_w;
-
- src_w = crtc_state->pipe_src_w;
- src_h = crtc_state->pipe_src_h;
- dst_w = pfit_size >> 16;
- dst_h = pfit_size & 0xffff;
-
- if (!dst_w || !dst_h)
- return pipe_downscale;
-
- fp_w_ratio = div_fixed16(src_w, dst_w);
- fp_h_ratio = div_fixed16(src_h, dst_h);
- downscale_w = max_fixed16(fp_w_ratio, u32_to_fixed16(1));
- downscale_h = max_fixed16(fp_h_ratio, u32_to_fixed16(1));
-
- pipe_downscale = mul_fixed16(downscale_w, downscale_h);
- }
-
- return pipe_downscale;
-}
-
-int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
- struct drm_atomic_state *state = crtc_state->base.state;
- const struct intel_plane_state *plane_state;
- struct intel_plane *plane;
- int crtc_clock, dotclk;
- u32 pipe_max_pixel_rate;
- uint_fixed_16_16_t pipe_downscale;
- uint_fixed_16_16_t max_downscale = u32_to_fixed16(1);
-
- if (!crtc_state->base.enable)
- return 0;
-
- intel_atomic_crtc_state_for_each_plane_state(plane, plane_state,
crtc_state) {
- uint_fixed_16_16_t plane_downscale;
- uint_fixed_16_16_t fp_9_div_8 = div_fixed16(9, 8);
- int bpp;
-
- if (!intel_wm_plane_visible(crtc_state, plane_state))
- continue;
-
- if (WARN_ON(!plane_state->base.fb))
- return -EINVAL;
-
- plane_downscale = skl_plane_downscale_amount(crtc_state,
plane_state);
- bpp = plane_state->base.fb->format->cpp[0] * 8;
- if (bpp == 64)
- plane_downscale = mul_fixed16(plane_downscale,
- fp_9_div_8);
-
- max_downscale = max_fixed16(plane_downscale, max_downscale);
- }
- pipe_downscale = skl_pipe_downscale_amount(crtc_state);
-
- pipe_downscale = mul_fixed16(pipe_downscale, max_downscale);
-
- crtc_clock = crtc_state->base.adjusted_mode.crtc_clock;
- dotclk = to_intel_atomic_state(state)->cdclk.logical.cdclk;
-
- if (IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10)
- dotclk *= 2;
-
- pipe_max_pixel_rate = div_round_up_u32_fixed16(dotclk, pipe_downscale);
-
- if (pipe_max_pixel_rate < crtc_clock) {
- DRM_DEBUG_KMS("Max supported pixel clock with scaling
exceeded\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
static u64
skl_plane_relative_data_rate(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state,
diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h
index 93d192d0610a..00a5801dfc06 100644
--- a/drivers/gpu/drm/i915/intel_pm.h
+++ b/drivers/gpu/drm/i915/intel_pm.h
@@ -64,8 +64,6 @@ void skl_write_plane_wm(struct intel_plane *plane,
void skl_write_cursor_wm(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state);
bool ilk_disable_lp_wm(struct drm_device *dev);
-int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc,
- struct intel_crtc_state *cstate);
void intel_init_ipc(struct drm_i915_private *dev_priv);
void intel_enable_ipc(struct drm_i915_private *dev_priv);
--
2.21.0
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