From 227c6f7b7a499dd58e0db6859736cfe586ef0897 Mon Sep 17 00:00:00 2001 From: Terje Bergstrom Date: Fri, 10 Aug 2018 14:09:36 -0700 Subject: gpu: nvgpu: Move fuse HAL to common Move implementation of fuse HAL to common/fuse. Also implements new fuse query functions for FBIO, FBP, TPC floorsweeping and security fuses. JIRA NVGPU-957 Change-Id: I55e256a4f1b59d50a721d4942907f70dc57467c4 Signed-off-by: Terje Bergstrom Reviewed-on: https://git-master.nvidia.com/r/1797177 --- drivers/gpu/nvgpu/common/fuse/fuse_gp10b.c | 104 +++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 drivers/gpu/nvgpu/common/fuse/fuse_gp10b.c (limited to 'drivers/gpu/nvgpu/common/fuse/fuse_gp10b.c') diff --git a/drivers/gpu/nvgpu/common/fuse/fuse_gp10b.c b/drivers/gpu/nvgpu/common/fuse/fuse_gp10b.c new file mode 100644 index 00000000..3a26e1b9 --- /dev/null +++ b/drivers/gpu/nvgpu/common/fuse/fuse_gp10b.c @@ -0,0 +1,104 @@ +/* + * GP10B FUSE + * + * Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include + +#include "gk20a/gk20a.h" + +#include "fuse_gm20b.h" +#include "fuse_gp10b.h" + +#include + +int gp10b_fuse_check_priv_security(struct gk20a *g) +{ + u32 gcplex_config; + + if (nvgpu_is_enabled(g, NVGPU_IS_FMODEL)) { + __nvgpu_set_enabled(g, NVGPU_SEC_PRIVSECURITY, false); + __nvgpu_set_enabled(g, NVGPU_SEC_SECUREGPCCS, false); + nvgpu_log(g, gpu_dbg_info, "priv sec is disabled in fmodel"); + return 0; + } + + if (nvgpu_tegra_fuse_read_gcplex_config_fuse(g, &gcplex_config)) { + nvgpu_err(g, "err reading gcplex config fuse, check fuse clk"); + return -EINVAL; + } + + if (gk20a_readl(g, fuse_opt_priv_sec_en_r())) { + /* + * 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 + */ + __nvgpu_set_enabled(g, NVGPU_SEC_PRIVSECURITY, true); + __nvgpu_set_enabled(g, NVGPU_SEC_SECUREGPCCS, true); + if ((gcplex_config & + GCPLEX_CONFIG_WPR_ENABLED_MASK) && + !(gcplex_config & + GCPLEX_CONFIG_VPR_AUTO_FETCH_DISABLE_MASK)) { + if (gk20a_readl(g, fuse_opt_sec_debug_en_r())) + nvgpu_log(g, gpu_dbg_info, + "gcplex_config = 0x%08x, " + "secure mode: ACR debug", + gcplex_config); + else + nvgpu_log(g, gpu_dbg_info, + "gcplex_config = 0x%08x, " + "secure mode: ACR non debug", + gcplex_config); + + } else { + nvgpu_err(g, "gcplex_config = 0x%08x " + "invalid wpr_enabled/vpr_auto_fetch_disable " + "with priv_sec_en", gcplex_config); + /* do not try to boot GPU */ + return -EINVAL; + } + } else { + __nvgpu_set_enabled(g, NVGPU_SEC_PRIVSECURITY, false); + __nvgpu_set_enabled(g, NVGPU_SEC_SECUREGPCCS, false); + nvgpu_log(g, gpu_dbg_info, + "gcplex_config = 0x%08x, non secure mode", + gcplex_config); + } + + return 0; +} + +bool gp10b_fuse_is_opt_ecc_enable(struct gk20a *g) +{ + return gk20a_readl(g, fuse_opt_ecc_en_r()) != 0U; +} + +bool gp10b_fuse_is_opt_feature_override_disable(struct gk20a *g) +{ + return gk20a_readl(g, + fuse_opt_feature_fuses_override_disable_r()) != 0U; +} -- cgit v1.2.2