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git://nv-tegra.nvidia.com/linux-nvgpu.git
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489236d181
Rename __nvgpu_set_enabled() to nvgpu_set_enabled(). The original double underscore was present to indicate that this function is a function with potentially unintended side effects (enabling a feature has wide ranging impact). To not lose this documentation a comment was added to convey that this function must be used with care. JIRA NVGPU-1029 Change-Id: I8bfc6fa4c17743f9f8056cb6a7a0f66229ca2583 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1989434 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
/*
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* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/io.h>
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#include <linux/highmem.h>
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#include <linux/platform_device.h>
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#include <nvgpu/log.h>
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#include <nvgpu/linux/vm.h>
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#include <nvgpu/bitops.h>
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#include <nvgpu/nvgpu_mem.h>
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#include <nvgpu/dma.h>
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#include <nvgpu/hw_sim_pci.h>
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#include <nvgpu/sim.h>
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#include <nvgpu/io.h>
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#include <nvgpu/gk20a.h>
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#include <nvgpu/soc.h>
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#include "os_linux.h"
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#include "module.h"
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static bool _nvgpu_pci_is_simulation(struct gk20a *g, u32 sim_base)
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{
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u32 cfg;
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bool is_simulation = false;
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if (nvgpu_platform_is_silicon(g)) {
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return is_simulation;
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}
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cfg = nvgpu_readl(g, sim_base + sim_config_r());
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if ((sim_config_simulation_v(cfg) == sim_config_simulation_fmodel_v())
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|| (sim_config_mode_v(cfg) == sim_config_mode_enabled_v())) {
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is_simulation = true;
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}
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return is_simulation;
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}
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void nvgpu_remove_sim_support_linux_pci(struct gk20a *g)
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{
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struct sim_nvgpu_linux *sim_linux;
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bool is_simulation;
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is_simulation = _nvgpu_pci_is_simulation(g, sim_r());
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if (!is_simulation) {
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return;
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}
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if (!g->sim) {
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nvgpu_warn(g, "sim_gk20a not allocated");
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return;
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}
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sim_linux = container_of(g->sim, struct sim_nvgpu_linux, sim);
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if (sim_linux->regs) {
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sim_writel(g->sim, sim_config_r(), sim_config_mode_disabled_v());
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sim_linux->regs = NULL;
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}
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nvgpu_kfree(g, sim_linux);
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g->sim = NULL;
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}
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int nvgpu_init_sim_support_linux_pci(struct gk20a *g)
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{
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struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
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struct sim_nvgpu_linux *sim_linux;
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int err = -ENOMEM;
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bool is_simulation;
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is_simulation = _nvgpu_pci_is_simulation(g, sim_r());
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nvgpu_set_enabled(g, NVGPU_IS_FMODEL, is_simulation);
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if (!is_simulation)
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return 0;
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sim_linux = nvgpu_kzalloc(g, sizeof(*sim_linux));
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if (!sim_linux)
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return err;
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g->sim = &sim_linux->sim;
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g->sim->g = g;
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sim_linux->regs = l->regs + sim_r();
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sim_linux->remove_support_linux = nvgpu_remove_sim_support_linux_pci;
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return 0;
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}
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