vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_TTY_BUFFER_H
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#define _LINUX_TTY_BUFFER_H
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#include <linux/atomic.h>
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#include <linux/llist.h>
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#include <linux/mutex.h>
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#include <linux/workqueue.h>
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struct tty_buffer {
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union {
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struct tty_buffer *next;
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struct llist_node free;
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};
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unsigned int used;
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unsigned int size;
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unsigned int commit;
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unsigned int lookahead; /* Lazy update on recv, can become less than "read" */
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unsigned int read;
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bool flags;
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/* Data points here */
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u8 data[] __aligned(sizeof(unsigned long));
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};
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static inline u8 *char_buf_ptr(struct tty_buffer *b, unsigned int ofs)
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{
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return b->data + ofs;
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}
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static inline u8 *flag_buf_ptr(struct tty_buffer *b, unsigned int ofs)
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{
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return char_buf_ptr(b, ofs) + b->size;
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}
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struct tty_bufhead {
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struct tty_buffer *head; /* Queue head */
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struct workqueue_struct *flip_wq;
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struct work_struct work;
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struct mutex lock;
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atomic_t priority;
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struct tty_buffer sentinel;
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struct llist_head free; /* Free queue head */
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atomic_t mem_used; /* In-use buffers excluding free list */
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int mem_limit;
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struct tty_buffer *tail; /* Active buffer */
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};
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/*
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* When a break, frame error, or parity error happens, these codes are
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* stuffed into the flags buffer.
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*/
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#define TTY_NORMAL 0
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#define TTY_BREAK 1
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#define TTY_FRAME 2
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#define TTY_PARITY 3
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#define TTY_OVERRUN 4
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#endif
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