diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic.c | 44 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_audio.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_cdclk.c | 102 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_types.h | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 11 |
7 files changed, 153 insertions, 56 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index c5a552a69752..9cd6d2348a1e 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -429,6 +429,13 @@ void intel_atomic_state_clear(struct drm_atomic_state *s) struct intel_atomic_state *state = to_intel_atomic_state(s); drm_atomic_state_default_clear(&state->base); state->dpll_set = state->modeset = false; + state->global_state_changed = false; + state->active_pipes = 0; + memset(&state->min_cdclk, 0, sizeof(state->min_cdclk)); + memset(&state->min_voltage_level, 0, sizeof(state->min_voltage_level)); + memset(&state->cdclk.logical, 0, sizeof(state->cdclk.logical)); + memset(&state->cdclk.actual, 0, sizeof(state->cdclk.actual)); + state->cdclk.pipe = INVALID_PIPE; } struct intel_crtc_state * @@ -442,3 +449,40 @@ intel_atomic_get_crtc_state(struct drm_atomic_state *state, return to_intel_crtc_state(crtc_state); } + +int intel_atomic_lock_global_state(struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct intel_crtc *crtc; + + state->global_state_changed = true; + + for_each_intel_crtc(&dev_priv->drm, crtc) { + int ret; + + ret = drm_modeset_lock(&crtc->base.mutex, + state->base.acquire_ctx); + if (ret) + return ret; + } + + return 0; +} + +int intel_atomic_serialize_global_state(struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct intel_crtc *crtc; + + state->global_state_changed = true; + + for_each_intel_crtc(&dev_priv->drm, crtc) { + struct intel_crtc_state *crtc_state; + + crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + } + + return 0; +} diff --git a/drivers/gpu/drm/i915/display/intel_atomic.h b/drivers/gpu/drm/i915/display/intel_atomic.h index 58065d3161a3..49d5cb1b9e0a 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.h +++ b/drivers/gpu/drm/i915/display/intel_atomic.h @@ -16,6 +16,7 @@ struct drm_crtc_state; struct drm_device; struct drm_i915_private; struct drm_property; +struct intel_atomic_state; struct intel_crtc; struct intel_crtc_state; @@ -46,4 +47,8 @@ int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv, struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state); +int intel_atomic_lock_global_state(struct intel_atomic_state *state); + +int intel_atomic_serialize_global_state(struct intel_atomic_state *state); + #endif /* __INTEL_ATOMIC_H__ */ diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c index ed18511befa3..85e6b2bbb34f 100644 --- a/drivers/gpu/drm/i915/display/intel_audio.c +++ b/drivers/gpu/drm/i915/display/intel_audio.c @@ -28,6 +28,7 @@ #include <drm/i915_component.h> #include "i915_drv.h" +#include "intel_atomic.h" #include "intel_audio.h" #include "intel_display_types.h" #include "intel_lpe_audio.h" @@ -818,13 +819,8 @@ retry: to_intel_atomic_state(state)->cdclk.force_min_cdclk = enable ? 2 * 96000 : 0; - /* - * Protects dev_priv->cdclk.force_min_cdclk - * Need to lock this here in case we have no active pipes - * and thus wouldn't lock it during the commit otherwise. - */ - ret = drm_modeset_lock(&dev_priv->drm.mode_config.connection_mutex, - &ctx); + /* Protects dev_priv->cdclk.force_min_cdclk */ + ret = intel_atomic_lock_global_state(to_intel_atomic_state(state)); if (!ret) ret = drm_atomic_commit(state); diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index 6eaebc38ee01..6c17a3bbf866 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -2007,11 +2007,20 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state) sizeof(state->min_cdclk)); for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + int ret; + min_cdclk = intel_crtc_compute_min_cdclk(crtc_state); if (min_cdclk < 0) return min_cdclk; + if (state->min_cdclk[i] == min_cdclk) + continue; + state->min_cdclk[i] = min_cdclk; + + ret = intel_atomic_lock_global_state(state); + if (ret) + return ret; } min_cdclk = state->cdclk.force_min_cdclk; @@ -2034,7 +2043,7 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state) * future platforms this code will need to be * adjusted. */ -static u8 bxt_compute_min_voltage_level(struct intel_atomic_state *state) +static int bxt_compute_min_voltage_level(struct intel_atomic_state *state) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct intel_crtc *crtc; @@ -2047,11 +2056,21 @@ static u8 bxt_compute_min_voltage_level(struct intel_atomic_state *state) sizeof(state->min_voltage_level)); for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + int ret; + if (crtc_state->base.enable) - state->min_voltage_level[i] = - crtc_state->min_voltage_level; + min_voltage_level = crtc_state->min_voltage_level; else - state->min_voltage_level[i] = 0; + min_voltage_level = 0; + + if (state->min_voltage_level[i] == min_voltage_level) + continue; + + state->min_voltage_level[i] = min_voltage_level; + + ret = intel_atomic_lock_global_state(state); + if (ret) + return ret; } min_voltage_level = 0; @@ -2195,20 +2214,24 @@ static int skl_modeset_calc_cdclk(struct intel_atomic_state *state) static int bxt_modeset_calc_cdclk(struct intel_atomic_state *state) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); - int min_cdclk, cdclk, vco; + int min_cdclk, min_voltage_level, cdclk, vco; min_cdclk = intel_compute_min_cdclk(state); if (min_cdclk < 0) return min_cdclk; + min_voltage_level = bxt_compute_min_voltage_level(state); + if (min_voltage_level < 0) + return min_voltage_level; + cdclk = bxt_calc_cdclk(dev_priv, min_cdclk); vco = bxt_calc_cdclk_pll_vco(dev_priv, cdclk); state->cdclk.logical.vco = vco; state->cdclk.logical.cdclk = cdclk; state->cdclk.logical.voltage_level = - max(dev_priv->display.calc_voltage_level(cdclk), - bxt_compute_min_voltage_level(state)); + max_t(int, min_voltage_level, + dev_priv->display.calc_voltage_level(cdclk)); if (!state->active_pipes) { cdclk = bxt_calc_cdclk(dev_priv, state->cdclk.force_min_cdclk); @@ -2225,23 +2248,6 @@ static int bxt_modeset_calc_cdclk(struct intel_atomic_state *state) return 0; } -static int intel_lock_all_pipes(struct intel_atomic_state *state) -{ - struct drm_i915_private *dev_priv = to_i915(state->base.dev); - struct intel_crtc *crtc; - - /* Add all pipes to the state */ - for_each_intel_crtc(&dev_priv->drm, crtc) { - struct intel_crtc_state *crtc_state; - - crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); - if (IS_ERR(crtc_state)) - return PTR_ERR(crtc_state); - } - - return 0; -} - static int intel_modeset_all_pipes(struct intel_atomic_state *state) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); @@ -2308,46 +2314,56 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state) return ret; /* - * Writes to dev_priv->cdclk.logical must protected by - * holding all the crtc locks, even if we don't end up + * Writes to dev_priv->cdclk.{actual,logical} must protected + * by holding all the crtc mutexes even if we don't end up * touching the hardware */ - if (intel_cdclk_changed(&dev_priv->cdclk.logical, - &state->cdclk.logical)) { - ret = intel_lock_all_pipes(state); - if (ret < 0) + if (intel_cdclk_changed(&dev_priv->cdclk.actual, + &state->cdclk.actual)) { + /* + * Also serialize commits across all crtcs + * if the actual hw needs to be poked. + */ + ret = intel_atomic_serialize_global_state(state); + if (ret) + return ret; + } else if (intel_cdclk_changed(&dev_priv->cdclk.logical, + &state->cdclk.logical)) { + ret = intel_atomic_lock_global_state(state); + if (ret) return ret; + } else { + return 0; } - if (is_power_of_2(state->active_pipes)) { + if (is_power_of_2(state->active_pipes) && + intel_cdclk_needs_cd2x_update(dev_priv, + &dev_priv->cdclk.actual, + &state->cdclk.actual)) { struct intel_crtc *crtc; struct intel_crtc_state *crtc_state; pipe = ilog2(state->active_pipes); crtc = intel_get_crtc_for_pipe(dev_priv, pipe); - crtc_state = intel_atomic_get_new_crtc_state(state, crtc); - if (crtc_state && - drm_atomic_crtc_needs_modeset(&crtc_state->base)) + + crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + if (drm_atomic_crtc_needs_modeset(&crtc_state->base)) pipe = INVALID_PIPE; } else { pipe = INVALID_PIPE; } - /* All pipes must be switched off while we change the cdclk. */ - if (pipe != INVALID_PIPE && - intel_cdclk_needs_cd2x_update(dev_priv, - &dev_priv->cdclk.actual, - &state->cdclk.actual)) { - ret = intel_lock_all_pipes(state); - if (ret) - return ret; - + if (pipe != INVALID_PIPE) { state->cdclk.pipe = pipe; DRM_DEBUG_KMS("Can change cdclk with pipe %c active\n", pipe_name(pipe)); } else if (intel_cdclk_needs_modeset(&dev_priv->cdclk.actual, &state->cdclk.actual)) { + /* All pipes must be switched off while we change the cdclk. */ ret = intel_modeset_all_pipes(state); if (ret) return ret; diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 579655675b08..ed3f501ed202 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -12426,6 +12426,12 @@ static bool check_digital_port_conflicts(struct intel_atomic_state *state) bool ret = true; /* + * We're going to peek into connector->state, + * hence connection_mutex must be held. + */ + drm_modeset_lock_assert_held(&dev->mode_config.connection_mutex); + + /* * Walk the connector list instead of the encoder * list to detect the problem on ddi platforms * where there's just one encoder per digital port. @@ -13725,7 +13731,6 @@ static int intel_modeset_checks(struct intel_atomic_state *state) state->active_pipes = dev_priv->active_pipes; state->cdclk.logical = dev_priv->cdclk.logical; state->cdclk.actual = dev_priv->cdclk.actual; - state->cdclk.pipe = INVALID_PIPE; for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { @@ -13738,6 +13743,12 @@ static int intel_modeset_checks(struct intel_atomic_state *state) state->active_pipe_changes |= BIT(crtc->pipe); } + if (state->active_pipe_changes) { + ret = intel_atomic_lock_global_state(state); + if (ret) + return ret; + } + ret = intel_modeset_calc_cdclk(state); if (ret) return ret; @@ -13839,7 +13850,7 @@ static int intel_atomic_check(struct drm_device *dev, struct intel_crtc_state *old_crtc_state, *new_crtc_state; struct intel_crtc *crtc; int ret, i; - bool any_ms = state->cdclk.force_min_cdclk_changed; + bool any_ms = false; /* Catch I915_MODE_FLAG_INHERITED */ for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, @@ -13877,6 +13888,8 @@ static int intel_atomic_check(struct drm_device *dev, if (ret) goto fail; + any_ms |= state->cdclk.force_min_cdclk_changed; + if (any_ms) { ret = intel_modeset_checks(state); if (ret) @@ -14670,6 +14683,14 @@ static void intel_atomic_track_fbs(struct intel_atomic_state *state) plane->frontbuffer_bit); } +static void assert_global_state_locked(struct drm_i915_private *dev_priv) +{ + struct intel_crtc *crtc; + + for_each_intel_crtc(&dev_priv->drm, crtc) + drm_modeset_lock_assert_held(&crtc->base.mutex); +} + static int intel_atomic_commit(struct drm_device *dev, struct drm_atomic_state *_state, bool nonblock) @@ -14735,7 +14756,9 @@ static int intel_atomic_commit(struct drm_device *dev, intel_shared_dpll_swap_state(state); intel_atomic_track_fbs(state); - if (state->modeset) { + if (state->global_state_changed) { + assert_global_state_locked(dev_priv); + memcpy(dev_priv->min_cdclk, state->min_cdclk, sizeof(state->min_cdclk)); memcpy(dev_priv->min_voltage_level, state->min_voltage_level, diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index bac40482a2aa..d18208e590b0 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -506,6 +506,14 @@ struct intel_atomic_state { bool rps_interactive; + /* + * active_pipes + * min_cdclk[] + * min_voltage_level[] + * cdclk.* + */ + bool global_state_changed; + /* Gen9+ only */ struct skl_ddb_values wm_results; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 674e9e921839..16e58a74fa6f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1097,13 +1097,14 @@ struct drm_i915_private { unsigned int fdi_pll_freq; unsigned int czclk_freq; + /* + * For reading holding any crtc lock is sufficient, + * for writing must hold all of them. + */ struct { /* * The current logical cdclk state. * See intel_atomic_state.cdclk.logical - * - * For reading holding any crtc lock is sufficient, - * for writing must hold all of them. */ struct intel_cdclk_state logical; /* @@ -1173,6 +1174,10 @@ struct drm_i915_private { */ struct mutex dpll_lock; + /* + * For reading active_pipes, min_cdclk, min_voltage_level holding + * any crtc lock is sufficient, for writing must hold all of them. + */ u8 active_pipes; /* minimum acceptable cdclk for each pipe */ int min_cdclk[I915_MAX_PIPES]; |