Delete no-longer-needed nvgpu headersHEADmasterjbakita-wip

The dependency on these was removed in commit 8340d234.

1 files changed, 0 insertions, 117 deletions

diff --git a/include/os/posix/rwsem.c b/include/os/posix/rwsem.c
deleted file mode 100644
index 7a696b7..0000000
--- a/include/os/posix/rwsem.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
- *
- * 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
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS 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 <nvgpu/bug.h>
-#include <nvgpu/rwsem.h>
-#include <nvgpu/timers.h>
-
-#include <nvgpu/posix/rwsem.h>
-
-void nvgpu_rwsem_init(struct nvgpu_rwsem *rwsem)
-{
-        memset(rwsem, 0, sizeof(*rwsem));
-
-        nvgpu_spinlock_init(&rwsem->lock);
-}
-
-/*
- * Acquire.
- */
-void nvgpu_rwsem_down_read(struct nvgpu_rwsem *rwsem)
-{
-        while (true) {
-                nvgpu_spinlock_acquire(&rwsem->lock);
-
-                /*
-                 * If there's a writer try again.
-                 */
-                if (rwsem->writers < 0) {
-                        nvgpu_spinlock_release(&rwsem->lock);
-                        nvgpu_msleep(10);
-                        continue;
-                }
-
-                /*
-                 * Otherwise decrement the read counter and return.
-                 */
-                rwsem->readers -= 1;
-                nvgpu_spinlock_release(&rwsem->lock);
-                return;
-        }
-}
-
-/*
- * Release.
- */
-void nvgpu_rwsem_up_read(struct nvgpu_rwsem *rwsem)
-{
-        nvgpu_spinlock_acquire(&rwsem->lock);
-        rwsem->readers += 1;
-
-        /*
-         * Can't be any writers if there was a reader. Also can't be
-         * a positive number of readers. The increments are always
-         * downward so if we have a positive number then there is a
-         * balancing bug.
-         */
-        BUG_ON(rwsem->writers < 0);
-        BUG_ON(rwsem->readers > 0);
-
-        nvgpu_spinlock_release(&rwsem->lock);
-}
-
-void nvgpu_rwsem_down_write(struct nvgpu_rwsem *rwsem)
-{
-        while (true) {
-                nvgpu_spinlock_acquire(&rwsem->lock);
-
-                /*
-                 * If there's a reader or a writer try again. Note: in this very
-                 * simple implementation it's possible for readers to
-                 * indefinitely starve writers.
-                 */
-                if (rwsem->writers < 0 || rwsem->readers < 0) {
-                        nvgpu_spinlock_release(&rwsem->lock);
-                        nvgpu_msleep(10);
-                        continue;
-                }
-
-                rwsem->writers -= 1;
-                nvgpu_spinlock_release(&rwsem->lock);
-                return;
-        }
-}
-
-void nvgpu_rwsem_up_write(struct nvgpu_rwsem *rwsem)
-{
-        nvgpu_spinlock_acquire(&rwsem->lock);
-        rwsem->writers += 1;
-
-        /*
-         * Writers can't be positive: that would be an unbalanced free. Readers
-         * must be zero - otherwise this writer should never have had access!
-         */
-        BUG_ON(rwsem->writers > 0);
-        BUG_ON(rwsem->readers != 0);
-
-        nvgpu_spinlock_release(&rwsem->lock);
-}