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authorMark Brown <[email protected]>2023-07-17 06:12:31 +0100
committerMark Brown <[email protected]>2023-07-17 06:12:31 +0100
commit0791faebfe750292a8a842b64795a390ca4a3b51 (patch)
tree0e6095a5a0130398b0693bddfdc421c41eebda7c /drivers/gpu/drm/i915/display/intel_modeset_lock.h
parente8bf1741c14eb8e4a4e1364d45aeeab66660ab9b (diff)
parentfdf0eaf11452d72945af31804e2a1048ee1b574c (diff)
ASoC: Merge v6.5-rc2
Get a similar baseline to my other branches, and fixes for people using the branch.
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_modeset_lock.h')
-rw-r--r--drivers/gpu/drm/i915/display/intel_modeset_lock.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_lock.h b/drivers/gpu/drm/i915/display/intel_modeset_lock.h
new file mode 100644
index 000000000000..edb5099bcd99
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_modeset_lock.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_MODESET_LOCK_H__
+#define __INTEL_MODESET_LOCK_H__
+
+#include <linux/types.h>
+
+struct drm_modeset_acquire_ctx;
+struct intel_atomic_state;
+
+void _intel_modeset_lock_begin(struct drm_modeset_acquire_ctx *ctx,
+ struct intel_atomic_state *state,
+ unsigned int flags,
+ int *ret);
+bool _intel_modeset_lock_loop(int *ret);
+void _intel_modeset_lock_end(struct drm_modeset_acquire_ctx *ctx,
+ struct intel_atomic_state *state,
+ int *ret);
+
+/*
+ * Note that one must always use "continue" rather than
+ * "break" or "return" to handle errors within the
+ * intel_modeset_lock_ctx_retry() block.
+ */
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+ for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+ _intel_modeset_lock_loop(&(ret)); \
+ _intel_modeset_lock_end((ctx), (state), &(ret)))
+
+#endif /* __INTEL_MODESET_LOCK_H__ */