mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
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e6b3bb4e6b
Mostly just including necessary includes to make sure that
global function declarations actually match their implementations.
Also work around pointer munging warning:
/build/ddpx/linux/kernel/nvgpu/drivers/gpu/nvgpu/common/pmu/pmu.c: In function 'nvgpu_pmu_process_init_msg':
/build/ddpx/linux/kernel/nvgpu/drivers/gpu/nvgpu/common/pmu/pmu.c:348:4: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
(*(u32 *)gid_data.signature == PMU_SHA1_GID_SIGNATURE);
Work around this warning by simply moving the type punning.
This code is certainly dangerous - it assumes the endianness
of the header data is the same as the machine this code is
running on. Apparently it works, though, so this ignores
the warning.
JIRA NVGPU-525
Change-Id: Id704bae7805440bebfad51c8c8365e6d2b7a39eb
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1692454
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/*
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* GP10B 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 "gm20b/fuse_gm20b.h"
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#include "fuse_gp10b.h"
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#include <nvgpu/hw/gp10b/hw_fuse_gp10b.h>
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int gp10b_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, false);
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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 disabled 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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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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__nvgpu_set_enabled(g, NVGPU_SEC_SECUREGPCCS, 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_set_enabled(g, NVGPU_SEC_SECUREGPCCS, 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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