From: Dave Airlie <[email protected]>

These are the watermark api between display and pm.
---
 drivers/gpu/drm/i915/display/intel_display.c | 54 ++++++++++----------
 drivers/gpu/drm/i915/i915_drv.h              | 24 ++++++---
 drivers/gpu/drm/i915/intel_pm.c              | 40 +++++++--------
 3 files changed, 63 insertions(+), 55 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index b495371c1889..b1202ede3fb0 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -161,8 +161,8 @@ static void intel_modeset_setup_hw_state(struct drm_device 
*dev,
  */
 static void intel_update_watermarks(struct drm_i915_private *dev_priv)
 {
-       if (dev_priv->display.update_wm)
-               dev_priv->display.update_wm(dev_priv);
+       if (dev_priv->wm_disp.update_wm)
+               dev_priv->wm_disp.update_wm(dev_priv);
 }
 
 /* returns HPLL frequency in kHz */
@@ -2566,8 +2566,8 @@ static void intel_pre_plane_update(struct 
intel_atomic_state *state,
                 * we'll continue to update watermarks the old way, if flags 
tell
                 * us to.
                 */
-               if (dev_priv->display.initial_watermarks)
-                       dev_priv->display.initial_watermarks(state, crtc);
+               if (dev_priv->wm_disp.initial_watermarks)
+                       dev_priv->wm_disp.initial_watermarks(state, crtc);
                else if (new_crtc_state->update_wm_pre)
                        intel_update_watermarks(dev_priv);
        }
@@ -2941,8 +2941,8 @@ static void ilk_crtc_enable(struct intel_atomic_state 
*state,
        /* update DSPCNTR to configure gamma for pipe bottom color */
        intel_disable_primary_plane(new_crtc_state);
 
-       if (dev_priv->display.initial_watermarks)
-               dev_priv->display.initial_watermarks(state, crtc);
+       if (dev_priv->wm_disp.initial_watermarks)
+               dev_priv->wm_disp.initial_watermarks(state, crtc);
        intel_enable_pipe(new_crtc_state);
 
        if (new_crtc_state->has_pch_encoder)
@@ -3152,8 +3152,8 @@ static void hsw_crtc_enable(struct intel_atomic_state 
*state,
        if (DISPLAY_VER(dev_priv) >= 11)
                icl_set_pipe_chicken(new_crtc_state);
 
-       if (dev_priv->display.initial_watermarks)
-               dev_priv->display.initial_watermarks(state, crtc);
+       if (dev_priv->wm_disp.initial_watermarks)
+               dev_priv->wm_disp.initial_watermarks(state, crtc);
 
        if (DISPLAY_VER(dev_priv) >= 11) {
                const struct intel_dbuf_state *dbuf_state =
@@ -3570,7 +3570,7 @@ static void valleyview_crtc_enable(struct 
intel_atomic_state *state,
        /* update DSPCNTR to configure gamma for pipe bottom color */
        intel_disable_primary_plane(new_crtc_state);
 
-       dev_priv->display.initial_watermarks(state, crtc);
+       dev_priv->wm_disp.initial_watermarks(state, crtc);
        intel_enable_pipe(new_crtc_state);
 
        intel_crtc_vblank_on(new_crtc_state);
@@ -3613,8 +3613,8 @@ static void i9xx_crtc_enable(struct intel_atomic_state 
*state,
        /* update DSPCNTR to configure gamma for pipe bottom color */
        intel_disable_primary_plane(new_crtc_state);
 
-       if (dev_priv->display.initial_watermarks)
-               dev_priv->display.initial_watermarks(state, crtc);
+       if (dev_priv->wm_disp.initial_watermarks)
+               dev_priv->wm_disp.initial_watermarks(state, crtc);
        else
                intel_update_watermarks(dev_priv);
        intel_enable_pipe(new_crtc_state);
@@ -3682,7 +3682,7 @@ static void i9xx_crtc_disable(struct intel_atomic_state 
*state,
        if (DISPLAY_VER(dev_priv) != 2)
                intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
 
-       if (!dev_priv->display.initial_watermarks)
+       if (!dev_priv->wm_disp.initial_watermarks)
                intel_update_watermarks(dev_priv);
 
        /* clock the pipe down to 640x480@60 to potentially save power */
@@ -6790,8 +6790,8 @@ static int intel_crtc_atomic_check(struct 
intel_atomic_state *state,
                        return ret;
        }
 
-       if (dev_priv->display.compute_pipe_wm) {
-               ret = dev_priv->display.compute_pipe_wm(state, crtc);
+       if (dev_priv->wm_disp.compute_pipe_wm) {
+               ret = dev_priv->wm_disp.compute_pipe_wm(state, crtc);
                if (ret) {
                        drm_dbg_kms(&dev_priv->drm,
                                    "Target pipe watermarks are invalid\n");
@@ -6800,9 +6800,9 @@ static int intel_crtc_atomic_check(struct 
intel_atomic_state *state,
 
        }
 
-       if (dev_priv->display.compute_intermediate_wm) {
+       if (dev_priv->wm_disp.compute_intermediate_wm) {
                if (drm_WARN_ON(&dev_priv->drm,
-                               !dev_priv->display.compute_pipe_wm))
+                               !dev_priv->wm_disp.compute_pipe_wm))
                        return 0;
 
                /*
@@ -6810,7 +6810,7 @@ static int intel_crtc_atomic_check(struct 
intel_atomic_state *state,
                 * old state and the new state.  We can program these
                 * immediately.
                 */
-               ret = dev_priv->display.compute_intermediate_wm(state, crtc);
+               ret = dev_priv->wm_disp.compute_intermediate_wm(state, crtc);
                if (ret) {
                        drm_dbg_kms(&dev_priv->drm,
                                    "No valid intermediate pipe watermarks are 
possible\n");
@@ -8919,8 +8919,8 @@ static int calc_watermark_data(struct intel_atomic_state 
*state)
        struct drm_i915_private *dev_priv = to_i915(dev);
 
        /* Is there platform-specific watermark information to calculate? */
-       if (dev_priv->display.compute_global_watermarks)
-               return dev_priv->display.compute_global_watermarks(state);
+       if (dev_priv->wm_disp.compute_global_watermarks)
+               return dev_priv->wm_disp.compute_global_watermarks(state);
 
        return 0;
 }
@@ -9745,8 +9745,8 @@ static void commit_pipe_pre_planes(struct 
intel_atomic_state *state,
                intel_psr2_program_trans_man_trk_ctl(new_crtc_state);
        }
 
-       if (dev_priv->display.atomic_update_watermarks)
-               dev_priv->display.atomic_update_watermarks(state, crtc);
+       if (dev_priv->wm_disp.atomic_update_watermarks)
+               dev_priv->wm_disp.atomic_update_watermarks(state, crtc);
 }
 
 static void commit_pipe_post_planes(struct intel_atomic_state *state,
@@ -9874,8 +9874,8 @@ static void intel_old_crtc_state_disables(struct 
intel_atomic_state *state,
        /* FIXME unify this for all platforms */
        if (!new_crtc_state->hw.active &&
            !HAS_GMCH(dev_priv) &&
-           dev_priv->display.initial_watermarks)
-               dev_priv->display.initial_watermarks(state, crtc);
+           dev_priv->wm_disp.initial_watermarks)
+               dev_priv->wm_disp.initial_watermarks(state, crtc);
 }
 
 static void intel_commit_modeset_disables(struct intel_atomic_state *state)
@@ -10297,8 +10297,8 @@ static void intel_atomic_commit_tail(struct 
intel_atomic_state *state)
                if (DISPLAY_VER(dev_priv) == 2 && 
planes_enabling(old_crtc_state, new_crtc_state))
                        intel_set_cpu_fifo_underrun_reporting(dev_priv, 
crtc->pipe, true);
 
-               if (dev_priv->display.optimize_watermarks)
-                       dev_priv->display.optimize_watermarks(state, crtc);
+               if (dev_priv->wm_disp.optimize_watermarks)
+                       dev_priv->wm_disp.optimize_watermarks(state, crtc);
        }
 
        intel_dbuf_post_plane_update(state);
@@ -11366,7 +11366,7 @@ static void sanitize_watermarks(struct drm_i915_private 
*dev_priv)
        int i;
 
        /* Only supported on platforms that use atomic watermark design */
-       if (!dev_priv->display.optimize_watermarks)
+       if (!dev_priv->wm_disp.optimize_watermarks)
                return;
 
        state = drm_atomic_state_alloc(&dev_priv->drm);
@@ -11399,7 +11399,7 @@ static void sanitize_watermarks(struct drm_i915_private 
*dev_priv)
        /* Write calculated watermark values back */
        for_each_new_intel_crtc_in_state(intel_state, crtc, crtc_state, i) {
                crtc_state->wm.need_postvbl_update = true;
-               dev_priv->display.optimize_watermarks(intel_state, crtc);
+               dev_priv->wm_disp.optimize_watermarks(intel_state, crtc);
 
                to_intel_crtc_state(crtc->base.state)->wm = crtc_state->wm;
        }
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b93fa19892b5..2beee62bfb91 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -328,13 +328,10 @@ struct drm_i915_cg_funcs {
        void (*init_clock_gating)(struct drm_i915_private *dev_priv);
 };
 
-struct drm_i915_display_funcs {
-       void (*get_cdclk)(struct drm_i915_private *dev_priv,
-                         struct intel_cdclk_config *cdclk_config);
-       void (*set_cdclk)(struct drm_i915_private *dev_priv,
-                         const struct intel_cdclk_config *cdclk_config,
-                         enum pipe pipe);
-       int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
+/* functions used for watermark calcs for display. */
+struct drm_i915_wm_disp_funcs {
+       /* update_wm is for legacy wm management */
+       void (*update_wm)(struct drm_i915_private *dev_priv);
        int (*compute_pipe_wm)(struct intel_atomic_state *state,
                               struct intel_crtc *crtc);
        int (*compute_intermediate_wm)(struct intel_atomic_state *state,
@@ -346,7 +343,15 @@ struct drm_i915_display_funcs {
        void (*optimize_watermarks)(struct intel_atomic_state *state,
                                    struct intel_crtc *crtc);
        int (*compute_global_watermarks)(struct intel_atomic_state *state);
-       void (*update_wm)(struct drm_i915_private *dev_priv);
+};
+
+struct drm_i915_display_funcs {
+       void (*get_cdclk)(struct drm_i915_private *dev_priv,
+                         struct intel_cdclk_config *cdclk_config);
+       void (*set_cdclk)(struct drm_i915_private *dev_priv,
+                         const struct intel_cdclk_config *cdclk_config,
+                         enum pipe pipe);
+       int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
        int (*modeset_calc_cdclk)(struct intel_cdclk_state *state);
        u8 (*calc_voltage_level)(int cdclk);
        /* Returns the active state of the crtc, and if the crtc is active,
@@ -976,6 +981,9 @@ struct drm_i915_private {
        /* pm private clock gating functions */
        struct drm_i915_cg_funcs cg_funcs;
 
+       /* pm display functions */
+       struct drm_i915_wm_disp_funcs wm_disp;
+
        /* Display functions */
        struct drm_i915_display_funcs display;
 
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 73549e774881..7a457646fb84 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7962,7 +7962,7 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
        /* For FIFO watermark updates */
        if (DISPLAY_VER(dev_priv) >= 9) {
                skl_setup_wm_latency(dev_priv);
-               dev_priv->display.compute_global_watermarks = skl_compute_wm;
+               dev_priv->wm_disp.compute_global_watermarks = skl_compute_wm;
        } else if (HAS_PCH_SPLIT(dev_priv)) {
                ilk_setup_wm_latency(dev_priv);
 
@@ -7970,12 +7970,12 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
                     dev_priv->wm.spr_latency[1] && 
dev_priv->wm.cur_latency[1]) ||
                    (DISPLAY_VER(dev_priv) != 5 && dev_priv->wm.pri_latency[0] 
&&
                     dev_priv->wm.spr_latency[0] && 
dev_priv->wm.cur_latency[0])) {
-                       dev_priv->display.compute_pipe_wm = ilk_compute_pipe_wm;
-                       dev_priv->display.compute_intermediate_wm =
+                       dev_priv->wm_disp.compute_pipe_wm = ilk_compute_pipe_wm;
+                       dev_priv->wm_disp.compute_intermediate_wm =
                                ilk_compute_intermediate_wm;
-                       dev_priv->display.initial_watermarks =
+                       dev_priv->wm_disp.initial_watermarks =
                                ilk_initial_watermarks;
-                       dev_priv->display.optimize_watermarks =
+                       dev_priv->wm_disp.optimize_watermarks =
                                ilk_optimize_watermarks;
                } else {
                        drm_dbg_kms(&dev_priv->drm,
@@ -7984,17 +7984,17 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
                }
        } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
                vlv_setup_wm_latency(dev_priv);
-               dev_priv->display.compute_pipe_wm = vlv_compute_pipe_wm;
-               dev_priv->display.compute_intermediate_wm = 
vlv_compute_intermediate_wm;
-               dev_priv->display.initial_watermarks = vlv_initial_watermarks;
-               dev_priv->display.optimize_watermarks = vlv_optimize_watermarks;
-               dev_priv->display.atomic_update_watermarks = 
vlv_atomic_update_fifo;
+               dev_priv->wm_disp.compute_pipe_wm = vlv_compute_pipe_wm;
+               dev_priv->wm_disp.compute_intermediate_wm = 
vlv_compute_intermediate_wm;
+               dev_priv->wm_disp.initial_watermarks = vlv_initial_watermarks;
+               dev_priv->wm_disp.optimize_watermarks = vlv_optimize_watermarks;
+               dev_priv->wm_disp.atomic_update_watermarks = 
vlv_atomic_update_fifo;
        } else if (IS_G4X(dev_priv)) {
                g4x_setup_wm_latency(dev_priv);
-               dev_priv->display.compute_pipe_wm = g4x_compute_pipe_wm;
-               dev_priv->display.compute_intermediate_wm = 
g4x_compute_intermediate_wm;
-               dev_priv->display.initial_watermarks = g4x_initial_watermarks;
-               dev_priv->display.optimize_watermarks = g4x_optimize_watermarks;
+               dev_priv->wm_disp.compute_pipe_wm = g4x_compute_pipe_wm;
+               dev_priv->wm_disp.compute_intermediate_wm = 
g4x_compute_intermediate_wm;
+               dev_priv->wm_disp.initial_watermarks = g4x_initial_watermarks;
+               dev_priv->wm_disp.optimize_watermarks = g4x_optimize_watermarks;
        } else if (IS_PINEVIEW(dev_priv)) {
                if (!intel_get_cxsr_latency(!IS_MOBILE(dev_priv),
                                            dev_priv->is_ddr3,
@@ -8008,18 +8008,18 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
                                 dev_priv->fsb_freq, dev_priv->mem_freq);
                        /* Disable CxSR and never update its watermark again */
                        intel_set_memory_cxsr(dev_priv, false);
-                       dev_priv->display.update_wm = NULL;
+                       dev_priv->wm_disp.update_wm = NULL;
                } else
-                       dev_priv->display.update_wm = pnv_update_wm;
+                       dev_priv->wm_disp.update_wm = pnv_update_wm;
        } else if (DISPLAY_VER(dev_priv) == 4) {
-               dev_priv->display.update_wm = i965_update_wm;
+               dev_priv->wm_disp.update_wm = i965_update_wm;
        } else if (DISPLAY_VER(dev_priv) == 3) {
-               dev_priv->display.update_wm = i9xx_update_wm;
+               dev_priv->wm_disp.update_wm = i9xx_update_wm;
        } else if (DISPLAY_VER(dev_priv) == 2) {
                if (INTEL_NUM_PIPES(dev_priv) == 1)
-                       dev_priv->display.update_wm = i845_update_wm;
+                       dev_priv->wm_disp.update_wm = i845_update_wm;
                else
-                       dev_priv->display.update_wm = i9xx_update_wm;
+                       dev_priv->wm_disp.update_wm = i9xx_update_wm;
        } else {
                drm_err(&dev_priv->drm,
                        "unexpected fall-through in %s\n", __func__);
-- 
2.31.1

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