From: Dave Airlie Date: Tue, 28 Sep 2021 22:58:08 +0000 (+0300) Subject: drm/i915: constify display wm vtable X-Git-Tag: v5.19~1937^2~9^2~71 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=dde98a573c0a00a1501f087f89ee61ce93d416df;p=mirror_ubuntu-kernels.git drm/i915: constify display wm vtable Use a nop table for the cases where CxSR doesn't init properly. v2: use a nop table (Jani) Reviewed-by: Jani Nikula Signed-off-by: Dave Airlie Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/bb0658d14afd02cca692cd58223800f68f4ff4ce.1632869550.git.jani.nikula@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index e7ac92994abf..9e407760e51f 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -161,16 +161,16 @@ 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->wm_disp.update_wm) - dev_priv->wm_disp.update_wm(dev_priv); + if (dev_priv->wm_disp->update_wm) + dev_priv->wm_disp->update_wm(dev_priv); } static int intel_compute_pipe_wm(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); - if (dev_priv->wm_disp.compute_pipe_wm) - return dev_priv->wm_disp.compute_pipe_wm(state, crtc); + if (dev_priv->wm_disp->compute_pipe_wm) + return dev_priv->wm_disp->compute_pipe_wm(state, crtc); return 0; } @@ -178,20 +178,20 @@ static int intel_compute_intermediate_wm(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); - if (!dev_priv->wm_disp.compute_intermediate_wm) + if (!dev_priv->wm_disp->compute_intermediate_wm) return 0; if (drm_WARN_ON(&dev_priv->drm, - !dev_priv->wm_disp.compute_pipe_wm)) + !dev_priv->wm_disp->compute_pipe_wm)) return 0; - return dev_priv->wm_disp.compute_intermediate_wm(state, crtc); + return dev_priv->wm_disp->compute_intermediate_wm(state, crtc); } static bool intel_initial_watermarks(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); - if (dev_priv->wm_disp.initial_watermarks) { - dev_priv->wm_disp.initial_watermarks(state, crtc); + if (dev_priv->wm_disp->initial_watermarks) { + dev_priv->wm_disp->initial_watermarks(state, crtc); return true; } return false; @@ -201,23 +201,23 @@ static void intel_atomic_update_watermarks(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); - if (dev_priv->wm_disp.atomic_update_watermarks) - dev_priv->wm_disp.atomic_update_watermarks(state, crtc); + if (dev_priv->wm_disp->atomic_update_watermarks) + dev_priv->wm_disp->atomic_update_watermarks(state, crtc); } static void intel_optimize_watermarks(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); - if (dev_priv->wm_disp.optimize_watermarks) - dev_priv->wm_disp.optimize_watermarks(state, crtc); + if (dev_priv->wm_disp->optimize_watermarks) + dev_priv->wm_disp->optimize_watermarks(state, crtc); } static int intel_compute_global_watermarks(struct intel_atomic_state *state) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); - if (dev_priv->wm_disp.compute_global_watermarks) - return dev_priv->wm_disp.compute_global_watermarks(state); + if (dev_priv->wm_disp->compute_global_watermarks) + return dev_priv->wm_disp->compute_global_watermarks(state); return 0; } @@ -3743,7 +3743,7 @@ 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->wm_disp.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 */ @@ -11425,7 +11425,7 @@ static void sanitize_watermarks(struct drm_i915_private *dev_priv) int i; /* Only supported on platforms that use atomic watermark design */ - if (!dev_priv->wm_disp.optimize_watermarks) + if (!dev_priv->wm_disp->optimize_watermarks) return; state = drm_atomic_state_alloc(&dev_priv->drm); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 4e28645c73c6..133dadecafdb 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -978,7 +978,7 @@ struct drm_i915_private { const struct drm_i915_clock_gating_funcs *clock_gating_funcs; /* pm display functions */ - struct drm_i915_wm_disp_funcs wm_disp; + const struct drm_i915_wm_disp_funcs *wm_disp; /* irq display functions */ const struct intel_hotplug_funcs *hotplug_funcs; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 08e0195edeb7..ef5f73934dab 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -7975,6 +7975,51 @@ void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv) } } +static const struct drm_i915_wm_disp_funcs skl_wm_funcs = { + .compute_global_watermarks = skl_compute_wm, +}; + +static const struct drm_i915_wm_disp_funcs ilk_wm_funcs = { + .compute_pipe_wm = ilk_compute_pipe_wm, + .compute_intermediate_wm = ilk_compute_intermediate_wm, + .initial_watermarks = ilk_initial_watermarks, + .optimize_watermarks = ilk_optimize_watermarks, +}; + +static const struct drm_i915_wm_disp_funcs vlv_wm_funcs = { + .compute_pipe_wm = vlv_compute_pipe_wm, + .compute_intermediate_wm = vlv_compute_intermediate_wm, + .initial_watermarks = vlv_initial_watermarks, + .optimize_watermarks = vlv_optimize_watermarks, + .atomic_update_watermarks = vlv_atomic_update_fifo, +}; + +static const struct drm_i915_wm_disp_funcs g4x_wm_funcs = { + .compute_pipe_wm = g4x_compute_pipe_wm, + .compute_intermediate_wm = g4x_compute_intermediate_wm, + .initial_watermarks = g4x_initial_watermarks, + .optimize_watermarks = g4x_optimize_watermarks, +}; + +static const struct drm_i915_wm_disp_funcs pnv_wm_funcs = { + .update_wm = pnv_update_wm, +}; + +static const struct drm_i915_wm_disp_funcs i965_wm_funcs = { + .update_wm = i965_update_wm, +}; + +static const struct drm_i915_wm_disp_funcs i9xx_wm_funcs = { + .update_wm = i9xx_update_wm, +}; + +static const struct drm_i915_wm_disp_funcs i845_wm_funcs = { + .update_wm = i845_update_wm, +}; + +static const struct drm_i915_wm_disp_funcs nop_funcs = { +}; + /* Set up chip specific power management-related functions */ void intel_init_pm(struct drm_i915_private *dev_priv) { @@ -7990,7 +8035,7 @@ 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->wm_disp.compute_global_watermarks = skl_compute_wm; + dev_priv->wm_disp = &skl_wm_funcs; } else if (HAS_PCH_SPLIT(dev_priv)) { ilk_setup_wm_latency(dev_priv); @@ -7998,31 +8043,19 @@ 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->wm_disp.compute_pipe_wm = ilk_compute_pipe_wm; - dev_priv->wm_disp.compute_intermediate_wm = - ilk_compute_intermediate_wm; - dev_priv->wm_disp.initial_watermarks = - ilk_initial_watermarks; - dev_priv->wm_disp.optimize_watermarks = - ilk_optimize_watermarks; + dev_priv->wm_disp = &ilk_wm_funcs; } else { drm_dbg_kms(&dev_priv->drm, "Failed to read display plane latency. " "Disable CxSR\n"); + dev_priv->wm_disp = &nop_funcs; } } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { vlv_setup_wm_latency(dev_priv); - 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; + dev_priv->wm_disp = &vlv_wm_funcs; } else if (IS_G4X(dev_priv)) { g4x_setup_wm_latency(dev_priv); - 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; + dev_priv->wm_disp = &g4x_wm_funcs; } else if (IS_PINEVIEW(dev_priv)) { if (!intel_get_cxsr_latency(!IS_MOBILE(dev_priv), dev_priv->is_ddr3, @@ -8036,21 +8069,22 @@ 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->wm_disp.update_wm = NULL; + dev_priv->wm_disp = &nop_funcs; } else - dev_priv->wm_disp.update_wm = pnv_update_wm; + dev_priv->wm_disp = &pnv_wm_funcs; } else if (DISPLAY_VER(dev_priv) == 4) { - dev_priv->wm_disp.update_wm = i965_update_wm; + dev_priv->wm_disp = &i965_wm_funcs; } else if (DISPLAY_VER(dev_priv) == 3) { - dev_priv->wm_disp.update_wm = i9xx_update_wm; + dev_priv->wm_disp = &i9xx_wm_funcs; } else if (DISPLAY_VER(dev_priv) == 2) { if (INTEL_NUM_PIPES(dev_priv) == 1) - dev_priv->wm_disp.update_wm = i845_update_wm; + dev_priv->wm_disp = &i845_wm_funcs; else - dev_priv->wm_disp.update_wm = i9xx_update_wm; + dev_priv->wm_disp = &i9xx_wm_funcs; } else { drm_err(&dev_priv->drm, "unexpected fall-through in %s\n", __func__); + dev_priv->wm_disp = &nop_funcs; } }