gallium: rename 'state tracker' to 'frontend'

Acked-by: Eric Anholt <[email protected]>
Acked-by: Alyssa Rosenzweig <[email protected]>
Acked-by: Pierre-Eric Pelloux-Prayer <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4902>

1 files changed, 0 insertions, 279 deletions

diff --git a/src/gallium/state_trackers/nine/nine_queue.c b/src/gallium/state_trackers/nine/nine_queue.c
deleted file mode 100644
index c09810b1a8a..00000000000
--- a/src/gallium/state_trackers/nine/nine_queue.c
+++ /dev/null
@@ -1,279 +0,0 @@
-/*
- * Copyright 2016 Patrick Rudolph <[email protected]>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * on the rights to use, copy, modify, merge, publish, distribute, sub
- * license, and/or sell copies of the Software, and to permit persons to whom
- * the Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE. */
-
-#include "nine_queue.h"
-#include "os/os_thread.h"
-#include "util/macros.h"
-#include "nine_helpers.h"
-
-#define NINE_CMD_BUF_INSTR (256)
-
-#define NINE_CMD_BUFS (32)
-#define NINE_CMD_BUFS_MASK (NINE_CMD_BUFS - 1)
-
-#define NINE_QUEUE_SIZE (8192 * 16 + 128)
-
-#define DBG_CHANNEL DBG_DEVICE
-
-/*
- * Single producer - single consumer pool queue
- *
- * Producer:
- * Calls nine_queue_alloc to get a slice of memory in current cmdbuf.
- * Calls nine_queue_flush to flush the queue by request.
- * The queue is flushed automatically on insufficient space or once the
- * cmdbuf contains NINE_CMD_BUF_INSTR instructions.
- *
- * nine_queue_flush does block, while nine_queue_alloc doesn't block.
- *
- * nine_queue_alloc returns NULL on insufficent space.
- *
- * Consumer:
- * Calls nine_queue_wait_flush to wait for a cmdbuf.
- * After waiting for a cmdbuf it calls nine_queue_get until NULL is returned.
- *
- * nine_queue_wait_flush does block, while nine_queue_get doesn't block.
- *
- * Constrains:
- * Only a single consumer and a single producer are supported.
- *
- */
-
-struct nine_cmdbuf {
-    unsigned instr_size[NINE_CMD_BUF_INSTR];
-    unsigned num_instr;
-    unsigned offset;
-    void *mem_pool;
-    BOOL full;
-};
-
-struct nine_queue_pool {
-    struct nine_cmdbuf pool[NINE_CMD_BUFS];
-    unsigned head;
-    unsigned tail;
-    unsigned cur_instr;
-    BOOL worker_wait;
-    cnd_t event_pop;
-    cnd_t event_push;
-    mtx_t mutex_pop;
-    mtx_t mutex_push;
-};
-
-/* Consumer functions: */
-void
-nine_queue_wait_flush(struct nine_queue_pool* ctx)
-{
-    struct nine_cmdbuf *cmdbuf = &ctx->pool[ctx->tail];
-
-    /* wait for cmdbuf full */
-    mtx_lock(&ctx->mutex_push);
-    while (!cmdbuf->full)
-    {
-        DBG("waiting for full cmdbuf\n");
-        cnd_wait(&ctx->event_push, &ctx->mutex_push);
-    }
-    DBG("got cmdbuf=%p\n", cmdbuf);
-    mtx_unlock(&ctx->mutex_push);
-
-    cmdbuf->offset = 0;
-    ctx->cur_instr = 0;
-}
-
-/* Gets a pointer to the next memory slice.
- * Does not block.
- * Returns NULL on empty cmdbuf. */
-void *
-nine_queue_get(struct nine_queue_pool* ctx)
-{
-    struct nine_cmdbuf *cmdbuf = &ctx->pool[ctx->tail];
-    unsigned offset;
-
-    /* At this pointer there's always a cmdbuf. */
-
-    if (ctx->cur_instr == cmdbuf->num_instr) {
-        /* signal waiting producer */
-        mtx_lock(&ctx->mutex_pop);
-        DBG("freeing cmdbuf=%p\n", cmdbuf);
-        cmdbuf->full = 0;
-        cnd_signal(&ctx->event_pop);
-        mtx_unlock(&ctx->mutex_pop);
-
-        ctx->tail = (ctx->tail + 1) & NINE_CMD_BUFS_MASK;
-
-        return NULL;
-    }
-
-    /* At this pointer there's always a cmdbuf with instruction to process. */
-    offset = cmdbuf->offset;
-    cmdbuf->offset += cmdbuf->instr_size[ctx->cur_instr];
-    ctx->cur_instr ++;
-
-    return cmdbuf->mem_pool + offset;
-}
-
-/* Producer functions: */
-
-/* Flushes the queue.
- * Moves the current cmdbuf to worker thread.
- * Blocks until next cmdbuf is free. */
-void
-nine_queue_flush(struct nine_queue_pool* ctx)
-{
-    struct nine_cmdbuf *cmdbuf = &ctx->pool[ctx->head];
-
-    DBG("flushing cmdbuf=%p instr=%d size=%d\n",
-           cmdbuf, cmdbuf->num_instr, cmdbuf->offset);
-
-    /* Nothing to flush */
-    if (!cmdbuf->num_instr)
-        return;
-
-    /* signal waiting worker */
-    mtx_lock(&ctx->mutex_push);
-    cmdbuf->full = 1;
-    cnd_signal(&ctx->event_push);
-    mtx_unlock(&ctx->mutex_push);
-
-    ctx->head = (ctx->head + 1) & NINE_CMD_BUFS_MASK;
-
-    cmdbuf = &ctx->pool[ctx->head];
-
-    /* wait for queue empty */
-    mtx_lock(&ctx->mutex_pop);
-    while (cmdbuf->full)
-    {
-        DBG("waiting for empty cmdbuf\n");
-        cnd_wait(&ctx->event_pop, &ctx->mutex_pop);
-    }
-    DBG("got empty cmdbuf=%p\n", cmdbuf);
-    mtx_unlock(&ctx->mutex_pop);
-    cmdbuf->offset = 0;
-    cmdbuf->num_instr = 0;
-}
-
-/* Gets a a pointer to slice of memory with size @space.
- * Does block if queue is full.
- * Returns NULL on @space > NINE_QUEUE_SIZE. */
-void *
-nine_queue_alloc(struct nine_queue_pool* ctx, unsigned space)
-{
-    unsigned offset;
-    struct nine_cmdbuf *cmdbuf = &ctx->pool[ctx->head];
-
-    if (space > NINE_QUEUE_SIZE)
-        return NULL;
-
-    /* at this pointer there's always a free queue available */
-
-    if ((cmdbuf->offset + space > NINE_QUEUE_SIZE) ||
-        (cmdbuf->num_instr == NINE_CMD_BUF_INSTR)) {
-
-        nine_queue_flush(ctx);
-
-        cmdbuf = &ctx->pool[ctx->head];
-    }
-
-    DBG("cmdbuf=%p space=%d\n", cmdbuf, space);
-
-    /* at this pointer there's always a free queue with sufficient space available */
-
-    offset = cmdbuf->offset;
-    cmdbuf->offset += space;
-    cmdbuf->instr_size[cmdbuf->num_instr] = space;
-    cmdbuf->num_instr ++;
-
-    return cmdbuf->mem_pool + offset;
-}
-
-/* Returns the current queue flush state.
- * TRUE nothing flushed
- * FALSE one ore more instructions queued flushed. */
-bool
-nine_queue_no_flushed_work(struct nine_queue_pool* ctx)
-{
-    return (ctx->tail == ctx->head);
-}
-
-/* Returns the current queue empty state.
- * TRUE no instructions queued.
- * FALSE one ore more instructions queued. */
-bool
-nine_queue_isempty(struct nine_queue_pool* ctx)
-{
-    struct nine_cmdbuf *cmdbuf = &ctx->pool[ctx->head];
-
-    return (ctx->tail == ctx->head) && !cmdbuf->num_instr;
-}
-
-struct nine_queue_pool*
-nine_queue_create(void)
-{
-    unsigned i;
-    struct nine_queue_pool *ctx;
-
-    ctx = CALLOC_STRUCT(nine_queue_pool);
-    if (!ctx)
-        goto failed;
-
-    for (i = 0; i < NINE_CMD_BUFS; i++) {
-        ctx->pool[i].mem_pool = MALLOC(NINE_QUEUE_SIZE);
-        if (!ctx->pool[i].mem_pool)
-            goto failed;
-    }
-
-    cnd_init(&ctx->event_pop);
-    (void) mtx_init(&ctx->mutex_pop, mtx_plain);
-
-    cnd_init(&ctx->event_push);
-    (void) mtx_init(&ctx->mutex_push, mtx_plain);
-
-    /* Block until first cmdbuf has been flushed. */
-    ctx->worker_wait = TRUE;
-
-    return ctx;
-failed:
-    if (ctx) {
-        for (i = 0; i < NINE_CMD_BUFS; i++) {
-            if (ctx->pool[i].mem_pool)
-                FREE(ctx->pool[i].mem_pool);
-        }
-        FREE(ctx);
-    }
-    return NULL;
-}
-
-void
-nine_queue_delete(struct nine_queue_pool *ctx)
-{
-    unsigned i;
-
-    mtx_destroy(&ctx->mutex_pop);
-    cnd_destroy(&ctx->event_pop);
-
-    mtx_destroy(&ctx->mutex_push);
-    cnd_destroy(&ctx->event_push);
-
-    for (i = 0; i < NINE_CMD_BUFS; i++)
-        FREE(ctx->pool[i].mem_pool);
-
-    FREE(ctx);
-}