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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
103 lines
2.0 KiB
C
103 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
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#include <linux/pid.h>
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#include <linux/slab.h>
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#include "lima_device.h"
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#include "lima_ctx.h"
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int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32 *id)
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{
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struct lima_ctx *ctx;
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int i, err;
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ctx = kzalloc_obj(*ctx);
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if (!ctx)
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return -ENOMEM;
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ctx->dev = dev;
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kref_init(&ctx->refcnt);
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for (i = 0; i < lima_pipe_num; i++) {
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err = lima_sched_context_init(dev->pipe + i, ctx->context + i);
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if (err)
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goto err_out0;
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}
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err = xa_alloc(&mgr->handles, id, ctx, xa_limit_32b, GFP_KERNEL);
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if (err < 0)
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goto err_out0;
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ctx->pid = task_pid_nr(current);
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get_task_comm(ctx->pname, current);
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return 0;
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err_out0:
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for (i--; i >= 0; i--)
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lima_sched_context_fini(dev->pipe + i, ctx->context + i);
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kfree(ctx);
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return err;
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}
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static void lima_ctx_do_release(struct kref *ref)
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{
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struct lima_ctx *ctx = container_of(ref, struct lima_ctx, refcnt);
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int i;
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for (i = 0; i < lima_pipe_num; i++)
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lima_sched_context_fini(ctx->dev->pipe + i, ctx->context + i);
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kfree(ctx);
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}
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int lima_ctx_free(struct lima_ctx_mgr *mgr, u32 id)
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{
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struct lima_ctx *ctx;
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int ret = 0;
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mutex_lock(&mgr->lock);
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ctx = xa_erase(&mgr->handles, id);
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if (ctx)
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kref_put(&ctx->refcnt, lima_ctx_do_release);
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else
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ret = -EINVAL;
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mutex_unlock(&mgr->lock);
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return ret;
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}
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struct lima_ctx *lima_ctx_get(struct lima_ctx_mgr *mgr, u32 id)
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{
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struct lima_ctx *ctx;
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mutex_lock(&mgr->lock);
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ctx = xa_load(&mgr->handles, id);
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if (ctx)
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kref_get(&ctx->refcnt);
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mutex_unlock(&mgr->lock);
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return ctx;
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}
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void lima_ctx_put(struct lima_ctx *ctx)
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{
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kref_put(&ctx->refcnt, lima_ctx_do_release);
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}
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void lima_ctx_mgr_init(struct lima_ctx_mgr *mgr)
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{
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mutex_init(&mgr->lock);
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xa_init_flags(&mgr->handles, XA_FLAGS_ALLOC);
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}
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void lima_ctx_mgr_fini(struct lima_ctx_mgr *mgr)
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{
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struct lima_ctx *ctx;
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unsigned long id;
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xa_for_each(&mgr->handles, id, ctx) {
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kref_put(&ctx->refcnt, lima_ctx_do_release);
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}
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xa_destroy(&mgr->handles);
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mutex_destroy(&mgr->lock);
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}
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