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8fe633449f
-New fuse ops is added to set NVGPU_SEC_PRIVSECURITY and NVGPU_SEC_SECUREGPCCS bits in g->enabled_flags during hal initialization -For igpu non simulation platforms, fuses are read to decide if gpu should be allowed to boot or not. --Do not boot gpu if priv_sec_en is set but wpr_enabled is not set to 1 or vpr_auto_fetch_disable is not set to 0 --With priv_sec_en set, all falcons have to boot in LS mode and this needs wpr_enabled set to 1 AND vpr_auto_fetch_disable set to 0. In this case gmmu tries to pull wpr and vpr settings from tegra mc Bug 2018223 Change-Id: Iceaa1b0b3214e9a3d6cef5d77a82e034302f748b Signed-off-by: Seema Khowala <seemaj@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1595454 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*
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* GM20B FUSE
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*
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* Copyright (c) 2017, 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/types.h>
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#include <nvgpu/fuse.h>
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#include <nvgpu/enabled.h>
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#include "gk20a/gk20a.h"
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#include "fuse_gm20b.h"
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#include <nvgpu/hw/gm20b/hw_fuse_gm20b.h>
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int gm20b_fuse_check_priv_security(struct gk20a *g)
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{
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u32 gcplex_config;
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if (nvgpu_is_enabled(g, NVGPU_IS_FMODEL)) {
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__nvgpu_set_enabled(g, NVGPU_SEC_PRIVSECURITY, true);
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__nvgpu_set_enabled(g, NVGPU_SEC_SECUREGPCCS, false);
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nvgpu_log(g, gpu_dbg_info, "priv sec is enabled in fmodel");
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return 0;
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}
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if (nvgpu_tegra_fuse_read_gcplex_config_fuse(g, &gcplex_config)) {
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nvgpu_err(g, "err reading gcplex config fuse, check fuse clk");
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return -EINVAL;
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}
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__nvgpu_set_enabled(g, NVGPU_SEC_SECUREGPCCS, false);
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if (gk20a_readl(g, fuse_opt_priv_sec_en_r())) {
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/*
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* all falcons have to boot in LS mode and this needs
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* wpr_enabled set to 1 and vpr_auto_fetch_disable
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* set to 0. In this case gmmu tries to pull wpr
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* and vpr settings from tegra mc
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*/
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__nvgpu_set_enabled(g, NVGPU_SEC_PRIVSECURITY, true);
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if ((gcplex_config &
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GCPLEX_CONFIG_WPR_ENABLED_MASK) &&
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!(gcplex_config &
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GCPLEX_CONFIG_VPR_AUTO_FETCH_DISABLE_MASK)) {
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if (gk20a_readl(g, fuse_opt_sec_debug_en_r()))
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nvgpu_log(g, gpu_dbg_info,
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"gcplex_config = 0x%08x, "
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"secure mode: ACR debug",
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gcplex_config);
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else
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nvgpu_log(g, gpu_dbg_info,
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"gcplex_config = 0x%08x, "
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"secure mode: ACR non debug",
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gcplex_config);
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} else {
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nvgpu_err(g, "gcplex_config = 0x%08x "
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"invalid wpr_enabled/vpr_auto_fetch_disable "
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"with priv_sec_en", gcplex_config);
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/* do not try to boot GPU */
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return -EINVAL;
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}
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} else {
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__nvgpu_set_enabled(g, NVGPU_SEC_PRIVSECURITY, false);
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nvgpu_log(g, gpu_dbg_info,
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"gcplex_config = 0x%08x, non secure mode",
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gcplex_config);
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}
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return 0;
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}
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