From b42fb7ba26b565f93118fbdd9e17b42ee6144c5e Mon Sep 17 00:00:00 2001 From: Deepak Nibade Date: Tue, 14 Nov 2017 06:43:28 -0800 Subject: gpu: nvgpu: move vgpu code to linux Most of VGPU code is linux specific but lies in common code So until VGPU code is properly abstracted and made os-independent, move all of VGPU code to linux specific directory Handle corresponding Makefile changes Update all #includes to reflect new paths Add GPL license to newly added linux files Jira NVGPU-387 Change-Id: Ic133e4c80e570bcc273f0dacf45283fefd678923 Signed-off-by: Deepak Nibade Reviewed-on: https://git-master.nvidia.com/r/1599472 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/common/linux/vgpu/dbg_vgpu.c | 210 +++++++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 drivers/gpu/nvgpu/common/linux/vgpu/dbg_vgpu.c (limited to 'drivers/gpu/nvgpu/common/linux/vgpu/dbg_vgpu.c') diff --git a/drivers/gpu/nvgpu/common/linux/vgpu/dbg_vgpu.c b/drivers/gpu/nvgpu/common/linux/vgpu/dbg_vgpu.c new file mode 100644 index 00000000..06ef43b8 --- /dev/null +++ b/drivers/gpu/nvgpu/common/linux/vgpu/dbg_vgpu.c @@ -0,0 +1,210 @@ +/* + * Copyright (c) 2015-2017, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +#include "gk20a/gk20a.h" +#include "gk20a/channel_gk20a.h" +#include "gk20a/dbg_gpu_gk20a.h" +#include "vgpu.h" +#include "dbg_vgpu.h" + +#include + +int vgpu_exec_regops(struct dbg_session_gk20a *dbg_s, + struct nvgpu_dbg_gpu_reg_op *ops, + u64 num_ops) +{ + struct channel_gk20a *ch; + struct tegra_vgpu_cmd_msg msg; + struct tegra_vgpu_reg_ops_params *p = &msg.params.reg_ops; + void *oob; + size_t oob_size, ops_size; + void *handle = NULL; + int err = 0; + + gk20a_dbg_fn(""); + BUG_ON(sizeof(*ops) != sizeof(struct tegra_vgpu_reg_op)); + + handle = tegra_gr_comm_oob_get_ptr(TEGRA_GR_COMM_CTX_CLIENT, + tegra_gr_comm_get_server_vmid(), + TEGRA_VGPU_QUEUE_CMD, + &oob, &oob_size); + if (!handle) + return -EINVAL; + + ops_size = sizeof(*ops) * num_ops; + if (oob_size < ops_size) { + err = -ENOMEM; + goto fail; + } + + memcpy(oob, ops, ops_size); + + msg.cmd = TEGRA_VGPU_CMD_REG_OPS; + msg.handle = vgpu_get_handle(dbg_s->g); + ch = nvgpu_dbg_gpu_get_session_channel(dbg_s); + p->handle = ch ? ch->virt_ctx : 0; + p->num_ops = num_ops; + p->is_profiler = dbg_s->is_profiler; + err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); + err = err ? err : msg.ret; + if (!err) + memcpy(ops, oob, ops_size); + +fail: + tegra_gr_comm_oob_put_ptr(handle); + return err; +} + +int vgpu_dbg_set_powergate(struct dbg_session_gk20a *dbg_s, bool disable_powergate) +{ + struct tegra_vgpu_cmd_msg msg; + struct tegra_vgpu_set_powergate_params *p = &msg.params.set_powergate; + int err = 0; + u32 mode; + + gk20a_dbg_fn(""); + + /* Just return if requested mode is the same as the session's mode */ + if (disable_powergate) { + if (dbg_s->is_pg_disabled) + return 0; + dbg_s->is_pg_disabled = true; + mode = NVGPU_DBG_GPU_POWERGATE_MODE_DISABLE; + } else { + if (!dbg_s->is_pg_disabled) + return 0; + dbg_s->is_pg_disabled = false; + mode = NVGPU_DBG_GPU_POWERGATE_MODE_ENABLE; + } + + msg.cmd = TEGRA_VGPU_CMD_SET_POWERGATE; + msg.handle = vgpu_get_handle(dbg_s->g); + p->mode = mode; + err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); + err = err ? err : msg.ret; + return err; +} + +static int vgpu_sendrecv_prof_cmd(struct dbg_session_gk20a *dbg_s, u32 mode) +{ + struct tegra_vgpu_cmd_msg msg; + struct tegra_vgpu_prof_mgt_params *p = &msg.params.prof_management; + int err = 0; + + msg.cmd = TEGRA_VGPU_CMD_PROF_MGT; + msg.handle = vgpu_get_handle(dbg_s->g); + + p->mode = mode; + + err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); + err = err ? err : msg.ret; + return err; +} + +bool vgpu_check_and_set_global_reservation( + struct dbg_session_gk20a *dbg_s, + struct dbg_profiler_object_data *prof_obj) +{ + struct gk20a *g = dbg_s->g; + + if (g->profiler_reservation_count > 0) + return false; + + /* Check that another guest OS doesn't already have a reservation */ + if (!vgpu_sendrecv_prof_cmd(dbg_s, TEGRA_VGPU_PROF_GET_GLOBAL)) { + g->global_profiler_reservation_held = true; + g->profiler_reservation_count = 1; + dbg_s->has_profiler_reservation = true; + prof_obj->has_reservation = true; + return true; + } + return false; +} + +bool vgpu_check_and_set_context_reservation( + struct dbg_session_gk20a *dbg_s, + struct dbg_profiler_object_data *prof_obj) +{ + struct gk20a *g = dbg_s->g; + + /* Assumes that we've already checked that no global reservation + * is in effect for this guest. + * + * If our reservation count is non-zero, then no other guest has the + * global reservation; if it is zero, need to check with RM server. + * + */ + if ((g->profiler_reservation_count != 0) || + !vgpu_sendrecv_prof_cmd(dbg_s, TEGRA_VGPU_PROF_GET_CONTEXT)) { + g->profiler_reservation_count++; + dbg_s->has_profiler_reservation = true; + prof_obj->has_reservation = true; + return true; + } + return false; +} + +void vgpu_release_profiler_reservation( + struct dbg_session_gk20a *dbg_s, + struct dbg_profiler_object_data *prof_obj) +{ + struct gk20a *g = dbg_s->g; + + dbg_s->has_profiler_reservation = false; + prof_obj->has_reservation = false; + if (prof_obj->ch == NULL) + g->global_profiler_reservation_held = false; + + /* If new reservation count is zero, notify server */ + g->profiler_reservation_count--; + if (g->profiler_reservation_count == 0) + vgpu_sendrecv_prof_cmd(dbg_s, TEGRA_VGPU_PROF_RELEASE); +} + +static int vgpu_sendrecv_perfbuf_cmd(struct gk20a *g, u64 offset, u32 size) +{ + struct mm_gk20a *mm = &g->mm; + struct vm_gk20a *vm = mm->perfbuf.vm; + struct tegra_vgpu_cmd_msg msg; + struct tegra_vgpu_perfbuf_mgt_params *p = + &msg.params.perfbuf_management; + int err; + + msg.cmd = TEGRA_VGPU_CMD_PERFBUF_MGT; + msg.handle = vgpu_get_handle(g); + + p->vm_handle = vm->handle; + p->offset = offset; + p->size = size; + + err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); + err = err ? err : msg.ret; + return err; +} + +int vgpu_perfbuffer_enable(struct gk20a *g, u64 offset, u32 size) +{ + return vgpu_sendrecv_perfbuf_cmd(g, offset, size); +} + +int vgpu_perfbuffer_disable(struct gk20a *g) +{ + return vgpu_sendrecv_perfbuf_cmd(g, 0, 0); +} -- cgit v1.2.2