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b2c4cdb25b
Implement the sim init for the iGPU-PCIe devices. JIRA NVGPU-9348 Change-Id: I9088308b96c57bb1cea01959326446ccad0a8c24 Signed-off-by: Ramalingam C <ramalingamc@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2851163 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Sagar Kamble <skamble@nvidia.com> Reviewed-by: Seema Khowala <seemaj@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/*
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* Copyright (c) 2018-2023, 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/soc.h>
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#include <nvgpu/hw_sim.h>
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#include <nvgpu/sim.h>
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#include <nvgpu/gk20a.h>
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#include "platform_gk20a.h"
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#include "os_linux.h"
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#include "module.h"
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void nvgpu_remove_sim_support_linux(struct gk20a *g)
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{
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struct sim_nvgpu_linux *sim_linux;
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if (!g->sim)
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return;
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sim_linux = container_of(g->sim, struct sim_nvgpu_linux, sim);
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if (g->sim->regs) {
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sim_writel(g->sim, sim_config_r(), sim_config_mode_disabled_v());
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iounmap((void __iomem *)g->sim->regs);
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g->sim->regs = 0U;
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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(struct gk20a *g,
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struct platform_device *dev)
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{
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struct sim_nvgpu_linux *sim_linux;
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void __iomem *addr;
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int err = -ENOMEM;
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if (!nvgpu_platform_is_simulation(g))
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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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addr = nvgpu_devm_ioremap_resource(dev,
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GK20A_SIM_IORESOURCE_MEM,
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NULL);
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if (IS_ERR(addr)) {
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nvgpu_err(g, "failed to remap gk20a sim regs");
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err = PTR_ERR(addr);
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goto fail;
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}
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g->sim->regs = (uintptr_t)addr;
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sim_linux->remove_support_linux = nvgpu_remove_sim_support_linux;
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return 0;
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fail:
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nvgpu_remove_sim_support_linux(g);
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return err;
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}
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int nvgpu_init_sim_support_linux_igpu_pci(struct gk20a *g,
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struct gk20a_platform *platform)
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{
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struct device *dev = dev_from_gk20a(g);
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struct sim_nvgpu_linux *sim_linux;
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void __iomem *addr;
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int err = -ENOMEM;
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if (!nvgpu_platform_is_simulation(g))
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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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addr = nvgpu_devm_ioremap(dev,
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(resource_size_t)platform->fake_rpc_base,
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(resource_size_t)platform->fake_rpc_size);
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if (IS_ERR(addr)) {
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nvgpu_err(g, "failed to remap gpu sim regs");
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err = PTR_ERR(addr);
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goto fail;
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}
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g->sim->regs = (uintptr_t)addr;
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sim_linux->remove_support_linux = nvgpu_remove_sim_support_linux;
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return 0;
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fail:
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nvgpu_remove_sim_support_linux(g);
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return err;
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}
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