Commit b260ac3e authored by Daniel Vetter's avatar Daniel Vetter

drm: Remove drm_modeset_legacy_acquire_ctx and crtc->acquire_ctx

With all the callers of drm_modeset_lock_crtc gone, and all the places
it was formerly used properly wiring the acquire ctx through, we can
remove this.

The only hidden context magic we still have is now the global one.
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Reviewed-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170403083304.9083-4-daniel.vetter@ffwll.ch
parent b95ff031
...@@ -1516,19 +1516,9 @@ EXPORT_SYMBOL(drm_atomic_add_affected_planes); ...@@ -1516,19 +1516,9 @@ EXPORT_SYMBOL(drm_atomic_add_affected_planes);
void drm_atomic_legacy_backoff(struct drm_atomic_state *state) void drm_atomic_legacy_backoff(struct drm_atomic_state *state)
{ {
struct drm_device *dev = state->dev; struct drm_device *dev = state->dev;
unsigned crtc_mask = 0;
struct drm_crtc *crtc;
int ret; int ret;
bool global = false; bool global = false;
drm_for_each_crtc(crtc, dev) {
if (crtc->acquire_ctx != state->acquire_ctx)
continue;
crtc_mask |= drm_crtc_mask(crtc);
crtc->acquire_ctx = NULL;
}
if (WARN_ON(dev->mode_config.acquire_ctx == state->acquire_ctx)) { if (WARN_ON(dev->mode_config.acquire_ctx == state->acquire_ctx)) {
global = true; global = true;
...@@ -1542,10 +1532,6 @@ void drm_atomic_legacy_backoff(struct drm_atomic_state *state) ...@@ -1542,10 +1532,6 @@ void drm_atomic_legacy_backoff(struct drm_atomic_state *state)
if (ret) if (ret)
goto retry; goto retry;
drm_for_each_crtc(crtc, dev)
if (drm_crtc_mask(crtc) & crtc_mask)
crtc->acquire_ctx = state->acquire_ctx;
if (global) if (global)
dev->mode_config.acquire_ctx = state->acquire_ctx; dev->mode_config.acquire_ctx = state->acquire_ctx;
} }
......
...@@ -2975,7 +2975,7 @@ int drm_atomic_helper_connector_dpms(struct drm_connector *connector, ...@@ -2975,7 +2975,7 @@ int drm_atomic_helper_connector_dpms(struct drm_connector *connector,
if (!state) if (!state)
return -ENOMEM; return -ENOMEM;
state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); state->acquire_ctx = crtc->dev->mode_config.acquire_ctx;
retry: retry:
crtc_state = drm_atomic_get_crtc_state(state, crtc); crtc_state = drm_atomic_get_crtc_state(state, crtc);
if (IS_ERR(crtc_state)) { if (IS_ERR(crtc_state)) {
......
...@@ -148,27 +148,6 @@ void drm_modeset_unlock_all(struct drm_device *dev) ...@@ -148,27 +148,6 @@ void drm_modeset_unlock_all(struct drm_device *dev)
} }
EXPORT_SYMBOL(drm_modeset_unlock_all); EXPORT_SYMBOL(drm_modeset_unlock_all);
/**
* drm_modeset_legacy_acquire_ctx - find acquire ctx for legacy ioctls
* @crtc: drm crtc
*
* Legacy ioctl operations like cursor updates or page flips only have per-crtc
* locking, and store the acquire ctx in the corresponding crtc. All other
* legacy operations take all locks and use a global acquire context. This
* function grabs the right one.
*/
struct drm_modeset_acquire_ctx *
drm_modeset_legacy_acquire_ctx(struct drm_crtc *crtc)
{
if (crtc->acquire_ctx)
return crtc->acquire_ctx;
WARN_ON(!crtc->dev->mode_config.acquire_ctx);
return crtc->dev->mode_config.acquire_ctx;
}
EXPORT_SYMBOL(drm_modeset_legacy_acquire_ctx);
/** /**
* drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
* @dev: device * @dev: device
......
...@@ -10715,7 +10715,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, ...@@ -10715,7 +10715,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
state = drm_atomic_state_alloc(dev); state = drm_atomic_state_alloc(dev);
if (!state) if (!state)
return -ENOMEM; return -ENOMEM;
state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); state->acquire_ctx = dev->mode_config.acquire_ctx;
retry: retry:
plane_state = drm_atomic_get_plane_state(state, primary); plane_state = drm_atomic_get_plane_state(state, primary);
...@@ -13075,7 +13075,7 @@ void intel_crtc_restore_mode(struct drm_crtc *crtc) ...@@ -13075,7 +13075,7 @@ void intel_crtc_restore_mode(struct drm_crtc *crtc)
return; return;
} }
state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); state->acquire_ctx = crtc->dev->mode_config.acquire_ctx;
retry: retry:
crtc_state = drm_atomic_get_crtc_state(state, crtc); crtc_state = drm_atomic_get_crtc_state(state, crtc);
......
...@@ -522,7 +522,7 @@ static void hsw_trans_edp_pipe_A_crc_wa(struct drm_i915_private *dev_priv, ...@@ -522,7 +522,7 @@ static void hsw_trans_edp_pipe_A_crc_wa(struct drm_i915_private *dev_priv,
goto unlock; goto unlock;
} }
state->acquire_ctx = drm_modeset_legacy_acquire_ctx(&crtc->base); state->acquire_ctx = crtc->base.dev->mode_config.acquire_ctx;
pipe_config = intel_atomic_get_crtc_state(state, crtc); pipe_config = intel_atomic_get_crtc_state(state, crtc);
if (IS_ERR(pipe_config)) { if (IS_ERR(pipe_config)) {
ret = PTR_ERR(pipe_config); ret = PTR_ERR(pipe_config);
......
...@@ -782,15 +782,6 @@ struct drm_crtc { ...@@ -782,15 +782,6 @@ struct drm_crtc {
*/ */
spinlock_t commit_lock; spinlock_t commit_lock;
/**
* @acquire_ctx:
*
* Per-CRTC implicit acquire context used by atomic drivers for legacy
* IOCTLs, so that atomic drivers can get at the locking acquire
* context.
*/
struct drm_modeset_acquire_ctx *acquire_ctx;
#ifdef CONFIG_DEBUG_FS #ifdef CONFIG_DEBUG_FS
/** /**
* @debugfs_entry: * @debugfs_entry:
......
...@@ -122,8 +122,6 @@ struct drm_plane; ...@@ -122,8 +122,6 @@ struct drm_plane;
void drm_modeset_lock_all(struct drm_device *dev); void drm_modeset_lock_all(struct drm_device *dev);
void drm_modeset_unlock_all(struct drm_device *dev); void drm_modeset_unlock_all(struct drm_device *dev);
void drm_warn_on_modeset_not_all_locked(struct drm_device *dev); void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
struct drm_modeset_acquire_ctx *
drm_modeset_legacy_acquire_ctx(struct drm_crtc *crtc);
int drm_modeset_lock_all_ctx(struct drm_device *dev, int drm_modeset_lock_all_ctx(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx); struct drm_modeset_acquire_ctx *ctx);
......
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