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08308bc936
Current PM resource reservation system is limited to HWPM resources only. And reservation tracking is done using boolean variables. New upcoming profiler support requires reservation for all the PM resources like SMPC and PMA stream. Using boolean variables is not scalable and confusing. Plus the variables have to be replicated on gpu server in case of virtualization. Remove flag tracking mechanism and use list based approach to track all PM reservations. Also, current HALs are defined on debugger object. Implement new HALs in new pm_reservation object since it is really an independent functionality. Add new source file common/profiler/pm_reservation.c which implements functions to reserve/release resources and to check if any resource is reserved or not. Add common/vgpu/pm_reservation_vgpu.c for vGPU which simply forwards the request to gpu server. Define new HAL object gops.pm_reservation and assign above functions to below respective HALs : g->ops.pm_reservation.acquire() g->ops.pm_reservation.release() g->ops.pm_reservation.release_all_per_vmid() Last HAL above is only used for gpu server cleanup of guest OS. Add below new common profiler functions that act as APIs to reserve/ release resources for rest of the units in nvgpu. nvgpu_profiler_pm_resource_reserve() nvgpu_profiler_pm_resource_release() Initialize the meta data required for reservtion system in nvgpu_pm_reservation_init() and call it during nvgpu_finalize_poweron. Clean up the meta data before releasing struct gk20a. Delete below HALs : g->ops.debugger.check_and_set_global_reservation() g->ops.debugger.check_and_set_context_reservation() g->ops.debugger.release_profiler_reservation() Bug 2510974 Jira NVGPU-5360 Change-Id: I4d9f89c58c791b3b2e63099a8a603462e5319222 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2367224 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*
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* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/vgpu/vgpu_ivc.h>
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#include <nvgpu/vgpu/tegra_vgpu.h>
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#include <nvgpu/vgpu/vgpu.h>
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#include <nvgpu/gk20a.h>
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#include <nvgpu/pm_reservation.h>
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#include "pm_reservation_vgpu.h"
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#include "common/vgpu/ivc/comm_vgpu.h"
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int vgpu_pm_reservation_acquire(struct gk20a *g, u32 reservation_id,
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enum nvgpu_profiler_pm_resource_type pm_resource,
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enum nvgpu_profiler_pm_reservation_scope scope,
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u32 vmid)
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{
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struct tegra_vgpu_cmd_msg msg;
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struct tegra_vgpu_prof_mgt_params *p = &msg.params.prof_management;
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int err = 0;
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msg.cmd = TEGRA_VGPU_CMD_PROF_MGT;
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msg.handle = vgpu_get_handle(g);
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p->mode = TEGRA_VGPU_PROF_PM_RESERVATION_ACQUIRE;
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p->reservation_id = reservation_id;
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p->pm_resource = pm_resource;
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p->scope = scope;
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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err = err ? err : msg.ret;
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return err;
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}
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int vgpu_pm_reservation_release(struct gk20a *g, u32 reservation_id,
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enum nvgpu_profiler_pm_resource_type pm_resource,
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u32 vmid)
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{
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struct tegra_vgpu_cmd_msg msg;
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struct tegra_vgpu_prof_mgt_params *p = &msg.params.prof_management;
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int err = 0;
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msg.cmd = TEGRA_VGPU_CMD_PROF_MGT;
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msg.handle = vgpu_get_handle(g);
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p->mode = TEGRA_VGPU_PROF_PM_RESERVATION_RELEASE;
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p->reservation_id = reservation_id;
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p->pm_resource = pm_resource;
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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err = err ? err : msg.ret;
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return err;
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}
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