575.51.02

2026-02-24 08:53:57 +00:00 · 2025-04-17 19:35:38 +02:00
parent e8113f665d
commit 4159579888
1142 changed files with 309085 additions and 272273 deletions
--- a/kernel-open/nvidia/nv-platform-pm.c
+++ b/kernel-open/nvidia/nv-platform-pm.c
@@ -0,0 +1,130 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2020-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * 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.
+ */
+
+#define  __NO_VERSION__
+
+#include "os-interface.h"
+#include "nv-linux.h"
+
+/*!
+ * @brief Unpowergate the display.
+ *
+ * Increment the device's usage counter, run pm_request_resume(dev)
+ * and return its result.
+ *
+ * For more details on runtime pm functions, please check the below
+ * files in the Linux kernel:
+ *
+ * include/linux/pm_runtime.h
+ * include/linux/pm.h
+ * or
+ * https://www.kernel.org/doc/Documentation/power/runtime_pm.txt
+ *
+ * pm_request_resume() submits a request to execute the subsystem-level
+ * resume callback for the device (the request is represented by a work
+ * item in pm_wq); returns 0 on success, 1 if the device's runtime PM
+ * status was already 'active', or error code if the request hasn't
+ * been queued up.
+ *
+ * @param[in]  nv      Per gpu linux state
+ *
+ * @returns NV_STATUS
+ */
+NV_STATUS NV_API_CALL nv_soc_pm_unpowergate(
+    nv_state_t *nv)
+{
+#if NV_SUPPORTS_PLATFORM_DISPLAY_DEVICE
+    nv_linux_state_t *nvl = NV_GET_NVL_FROM_NV_STATE(nv);
+    NvS32 ret             = -EBUSY;
+
+    ret = pm_runtime_get(nvl->dev);
+
+    if (ret == 1)
+    {
+        nv_printf(NV_DBG_INFO, "NVRM: device was already unpowergated\n");
+    }
+    else if (ret == -EINPROGRESS)
+    {
+        /*
+         * pm_runtime_get() internally calls __pm_runtime_resume(...RPM_ASYNC)
+         * which internally calls rpm_resume() and this function will throw
+         * "-EINPROGRESS" if it is being called when device state is
+         * RPM_RESUMING and RPM_ASYNC or RPM_NOWAIT is set.
+         */
+        nv_printf(NV_DBG_INFO, "NVRM: device is already unpowergating\n");
+    }
+    else if (ret < 0)
+    {
+        nv_printf(NV_DBG_ERRORS, "NVRM: unpowergate unsuccessful. ret: %d\n", ret);
+        return NV_ERR_GENERIC;
+    }
+
+    return NV_OK;
+#else
+    return NV_ERR_NOT_SUPPORTED;
+#endif
+}
+
+/*!
+ * @brief Powergate the display.
+ *
+ * Decrement the device's usage counter; if the result is 0 then run
+ * pm_request_idle(dev) and return its result.
+ *
+ * For more details on runtime pm functions, please check the below
+ * files in the Linux kernel:
+ *
+ * include/linux/pm_runtime.h
+ * include/linux/pm.h
+ * or
+ * https://www.kernel.org/doc/Documentation/power/runtime_pm.txt
+ *
+ * @param[in]  nv      Per gpu linux state
+ *
+ * @returns NV_STATUS
+ */
+NV_STATUS NV_API_CALL nv_soc_pm_powergate(
+    nv_state_t *nv)
+{
+#if NV_SUPPORTS_PLATFORM_DISPLAY_DEVICE
+    NV_STATUS status      = NV_ERR_GENERIC;
+    nv_linux_state_t *nvl = NV_GET_NVL_FROM_NV_STATE(nv);
+    NvS32 ret             = -EBUSY;
+
+    ret = pm_runtime_put(nvl->dev);
+
+    if (ret == 0)
+    {
+        status = NV_OK;
+    }
+    else
+    {
+        nv_printf(NV_DBG_ERRORS, "NVRM: powergate unsuccessful. ret: %d\n", ret);
+    }
+
+    return status;
+#else
+    return NV_ERR_NOT_SUPPORTED;
+#endif
+}
+