| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Thierry Reding | 3386 | 93.12% | 9 | 64.29% |
| Ashish Mhetre | 238 | 6.55% | 2 | 14.29% |
| Arnd Bergmann | 8 | 0.22% | 1 | 7.14% |
| Randy Dunlap | 3 | 0.08% | 1 | 7.14% |
| Thomas Gleixner | 1 | 0.03% | 1 | 7.14% |
| Total | 3636 | 14 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2017-2021 NVIDIA CORPORATION. All rights reserved. */ #include <linux/io.h> #include <linux/iommu.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <soc/tegra/mc.h> #if defined(CONFIG_ARCH_TEGRA_186_SOC) #include <dt-bindings/memory/tegra186-mc.h> #endif #include "mc.h" #define MC_SID_STREAMID_OVERRIDE_MASK GENMASK(7, 0) #define MC_SID_STREAMID_SECURITY_WRITE_ACCESS_DISABLED BIT(16) #define MC_SID_STREAMID_SECURITY_OVERRIDE BIT(8) static void tegra186_mc_program_sid(struct tegra_mc *mc) { unsigned int i; for (i = 0; i < mc->soc->num_clients; i++) { const struct tegra_mc_client *client = &mc->soc->clients[i]; u32 override, security; override = readl(mc->regs + client->regs.sid.override); security = readl(mc->regs + client->regs.sid.security); dev_dbg(mc->dev, "client %s: override: %x security: %x\n", client->name, override, security); dev_dbg(mc->dev, "setting SID %u for %s\n", client->sid, client->name); writel(client->sid, mc->regs + client->regs.sid.override); override = readl(mc->regs + client->regs.sid.override); security = readl(mc->regs + client->regs.sid.security); dev_dbg(mc->dev, "client %s: override: %x security: %x\n", client->name, override, security); } } static int tegra186_mc_probe(struct tegra_mc *mc) { struct platform_device *pdev = to_platform_device(mc->dev); unsigned int i; char name[8]; int err; mc->bcast_ch_regs = devm_platform_ioremap_resource_byname(pdev, "broadcast"); if (IS_ERR(mc->bcast_ch_regs)) { if (PTR_ERR(mc->bcast_ch_regs) == -EINVAL) { dev_warn(&pdev->dev, "Broadcast channel is missing, please update your device-tree\n"); mc->bcast_ch_regs = NULL; goto populate; } return PTR_ERR(mc->bcast_ch_regs); } mc->ch_regs = devm_kcalloc(mc->dev, mc->soc->num_channels, sizeof(*mc->ch_regs), GFP_KERNEL); if (!mc->ch_regs) return -ENOMEM; for (i = 0; i < mc->soc->num_channels; i++) { snprintf(name, sizeof(name), "ch%u", i); mc->ch_regs[i] = devm_platform_ioremap_resource_byname(pdev, name); if (IS_ERR(mc->ch_regs[i])) return PTR_ERR(mc->ch_regs[i]); } populate: err = of_platform_populate(mc->dev->of_node, NULL, NULL, mc->dev); if (err < 0) return err; tegra186_mc_program_sid(mc); return 0; } static void tegra186_mc_remove(struct tegra_mc *mc) { of_platform_depopulate(mc->dev); } static int tegra186_mc_resume(struct tegra_mc *mc) { tegra186_mc_program_sid(mc); return 0; } #if IS_ENABLED(CONFIG_IOMMU_API) static void tegra186_mc_client_sid_override(struct tegra_mc *mc, const struct tegra_mc_client *client, unsigned int sid) { u32 value, old; value = readl(mc->regs + client->regs.sid.security); if ((value & MC_SID_STREAMID_SECURITY_OVERRIDE) == 0) { /* * If the secure firmware has locked this down the override * for this memory client, there's nothing we can do here. */ if (value & MC_SID_STREAMID_SECURITY_WRITE_ACCESS_DISABLED) return; /* * Otherwise, try to set the override itself. Typically the * secure firmware will never have set this configuration. * Instead, it will either have disabled write access to * this field, or it will already have set an explicit * override itself. */ WARN_ON((value & MC_SID_STREAMID_SECURITY_OVERRIDE) == 0); value |= MC_SID_STREAMID_SECURITY_OVERRIDE; writel(value, mc->regs + client->regs.sid.security); } value = readl(mc->regs + client->regs.sid.override); old = value & MC_SID_STREAMID_OVERRIDE_MASK; if (old != sid) { dev_dbg(mc->dev, "overriding SID %x for %s with %x\n", old, client->name, sid); writel(sid, mc->regs + client->regs.sid.override); } } #endif static int tegra186_mc_probe_device(struct tegra_mc *mc, struct device *dev) { #if IS_ENABLED(CONFIG_IOMMU_API) struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); struct of_phandle_args args; unsigned int i, index = 0; while (!of_parse_phandle_with_args(dev->of_node, "interconnects", "#interconnect-cells", index, &args)) { if (args.np == mc->dev->of_node && args.args_count != 0) { for (i = 0; i < mc->soc->num_clients; i++) { const struct tegra_mc_client *client = &mc->soc->clients[i]; if (client->id == args.args[0]) { u32 sid = fwspec->ids[0] & MC_SID_STREAMID_OVERRIDE_MASK; tegra186_mc_client_sid_override(mc, client, sid); } } } index++; } #endif return 0; } const struct tegra_mc_ops tegra186_mc_ops = { .probe = tegra186_mc_probe, .remove = tegra186_mc_remove, .resume = tegra186_mc_resume, .probe_device = tegra186_mc_probe_device, .handle_irq = tegra30_mc_handle_irq, }; #if defined(CONFIG_ARCH_TEGRA_186_SOC) static const struct tegra_mc_client tegra186_mc_clients[] = { { .id = TEGRA186_MEMORY_CLIENT_PTCR, .name = "ptcr", .sid = TEGRA186_SID_PASSTHROUGH, .regs = { .sid = { .override = 0x000, .security = 0x004, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AFIR, .name = "afir", .sid = TEGRA186_SID_AFI, .regs = { .sid = { .override = 0x070, .security = 0x074, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_HDAR, .name = "hdar", .sid = TEGRA186_SID_HDA, .regs = { .sid = { .override = 0x0a8, .security = 0x0ac, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_HOST1XDMAR, .name = "host1xdmar", .sid = TEGRA186_SID_HOST1X, .regs = { .sid = { .override = 0x0b0, .security = 0x0b4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVENCSRD, .name = "nvencsrd", .sid = TEGRA186_SID_NVENC, .regs = { .sid = { .override = 0x0e0, .security = 0x0e4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SATAR, .name = "satar", .sid = TEGRA186_SID_SATA, .regs = { .sid = { .override = 0x0f8, .security = 0x0fc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_MPCORER, .name = "mpcorer", .sid = TEGRA186_SID_PASSTHROUGH, .regs = { .sid = { .override = 0x138, .security = 0x13c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVENCSWR, .name = "nvencswr", .sid = TEGRA186_SID_NVENC, .regs = { .sid = { .override = 0x158, .security = 0x15c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AFIW, .name = "afiw", .sid = TEGRA186_SID_AFI, .regs = { .sid = { .override = 0x188, .security = 0x18c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_HDAW, .name = "hdaw", .sid = TEGRA186_SID_HDA, .regs = { .sid = { .override = 0x1a8, .security = 0x1ac, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_MPCOREW, .name = "mpcorew", .sid = TEGRA186_SID_PASSTHROUGH, .regs = { .sid = { .override = 0x1c8, .security = 0x1cc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SATAW, .name = "sataw", .sid = TEGRA186_SID_SATA, .regs = { .sid = { .override = 0x1e8, .security = 0x1ec, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_ISPRA, .name = "ispra", .sid = TEGRA186_SID_ISP, .regs = { .sid = { .override = 0x220, .security = 0x224, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_ISPWA, .name = "ispwa", .sid = TEGRA186_SID_ISP, .regs = { .sid = { .override = 0x230, .security = 0x234, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_ISPWB, .name = "ispwb", .sid = TEGRA186_SID_ISP, .regs = { .sid = { .override = 0x238, .security = 0x23c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_XUSB_HOSTR, .name = "xusb_hostr", .sid = TEGRA186_SID_XUSB_HOST, .regs = { .sid = { .override = 0x250, .security = 0x254, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_XUSB_HOSTW, .name = "xusb_hostw", .sid = TEGRA186_SID_XUSB_HOST, .regs = { .sid = { .override = 0x258, .security = 0x25c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_XUSB_DEVR, .name = "xusb_devr", .sid = TEGRA186_SID_XUSB_DEV, .regs = { .sid = { .override = 0x260, .security = 0x264, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_XUSB_DEVW, .name = "xusb_devw", .sid = TEGRA186_SID_XUSB_DEV, .regs = { .sid = { .override = 0x268, .security = 0x26c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_TSECSRD, .name = "tsecsrd", .sid = TEGRA186_SID_TSEC, .regs = { .sid = { .override = 0x2a0, .security = 0x2a4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_TSECSWR, .name = "tsecswr", .sid = TEGRA186_SID_TSEC, .regs = { .sid = { .override = 0x2a8, .security = 0x2ac, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_GPUSRD, .name = "gpusrd", .sid = TEGRA186_SID_GPU, .regs = { .sid = { .override = 0x2c0, .security = 0x2c4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_GPUSWR, .name = "gpuswr", .sid = TEGRA186_SID_GPU, .regs = { .sid = { .override = 0x2c8, .security = 0x2cc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCRA, .name = "sdmmcra", .sid = TEGRA186_SID_SDMMC1, .regs = { .sid = { .override = 0x300, .security = 0x304, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCRAA, .name = "sdmmcraa", .sid = TEGRA186_SID_SDMMC2, .regs = { .sid = { .override = 0x308, .security = 0x30c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCR, .name = "sdmmcr", .sid = TEGRA186_SID_SDMMC3, .regs = { .sid = { .override = 0x310, .security = 0x314, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCRAB, .name = "sdmmcrab", .sid = TEGRA186_SID_SDMMC4, .regs = { .sid = { .override = 0x318, .security = 0x31c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCWA, .name = "sdmmcwa", .sid = TEGRA186_SID_SDMMC1, .regs = { .sid = { .override = 0x320, .security = 0x324, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCWAA, .name = "sdmmcwaa", .sid = TEGRA186_SID_SDMMC2, .regs = { .sid = { .override = 0x328, .security = 0x32c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCW, .name = "sdmmcw", .sid = TEGRA186_SID_SDMMC3, .regs = { .sid = { .override = 0x330, .security = 0x334, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SDMMCWAB, .name = "sdmmcwab", .sid = TEGRA186_SID_SDMMC4, .regs = { .sid = { .override = 0x338, .security = 0x33c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_VICSRD, .name = "vicsrd", .sid = TEGRA186_SID_VIC, .regs = { .sid = { .override = 0x360, .security = 0x364, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_VICSWR, .name = "vicswr", .sid = TEGRA186_SID_VIC, .regs = { .sid = { .override = 0x368, .security = 0x36c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_VIW, .name = "viw", .sid = TEGRA186_SID_VI, .regs = { .sid = { .override = 0x390, .security = 0x394, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVDECSRD, .name = "nvdecsrd", .sid = TEGRA186_SID_NVDEC, .regs = { .sid = { .override = 0x3c0, .security = 0x3c4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVDECSWR, .name = "nvdecswr", .sid = TEGRA186_SID_NVDEC, .regs = { .sid = { .override = 0x3c8, .security = 0x3cc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_APER, .name = "aper", .sid = TEGRA186_SID_APE, .regs = { .sid = { .override = 0x3d0, .security = 0x3d4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_APEW, .name = "apew", .sid = TEGRA186_SID_APE, .regs = { .sid = { .override = 0x3d8, .security = 0x3dc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVJPGSRD, .name = "nvjpgsrd", .sid = TEGRA186_SID_NVJPG, .regs = { .sid = { .override = 0x3f0, .security = 0x3f4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVJPGSWR, .name = "nvjpgswr", .sid = TEGRA186_SID_NVJPG, .regs = { .sid = { .override = 0x3f8, .security = 0x3fc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SESRD, .name = "sesrd", .sid = TEGRA186_SID_SE, .regs = { .sid = { .override = 0x400, .security = 0x404, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SESWR, .name = "seswr", .sid = TEGRA186_SID_SE, .regs = { .sid = { .override = 0x408, .security = 0x40c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_ETRR, .name = "etrr", .sid = TEGRA186_SID_ETR, .regs = { .sid = { .override = 0x420, .security = 0x424, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_ETRW, .name = "etrw", .sid = TEGRA186_SID_ETR, .regs = { .sid = { .override = 0x428, .security = 0x42c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_TSECSRDB, .name = "tsecsrdb", .sid = TEGRA186_SID_TSECB, .regs = { .sid = { .override = 0x430, .security = 0x434, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_TSECSWRB, .name = "tsecswrb", .sid = TEGRA186_SID_TSECB, .regs = { .sid = { .override = 0x438, .security = 0x43c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_GPUSRD2, .name = "gpusrd2", .sid = TEGRA186_SID_GPU, .regs = { .sid = { .override = 0x440, .security = 0x444, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_GPUSWR2, .name = "gpuswr2", .sid = TEGRA186_SID_GPU, .regs = { .sid = { .override = 0x448, .security = 0x44c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AXISR, .name = "axisr", .sid = TEGRA186_SID_GPCDMA_0, .regs = { .sid = { .override = 0x460, .security = 0x464, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AXISW, .name = "axisw", .sid = TEGRA186_SID_GPCDMA_0, .regs = { .sid = { .override = 0x468, .security = 0x46c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_EQOSR, .name = "eqosr", .sid = TEGRA186_SID_EQOS, .regs = { .sid = { .override = 0x470, .security = 0x474, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_EQOSW, .name = "eqosw", .sid = TEGRA186_SID_EQOS, .regs = { .sid = { .override = 0x478, .security = 0x47c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_UFSHCR, .name = "ufshcr", .sid = TEGRA186_SID_UFSHC, .regs = { .sid = { .override = 0x480, .security = 0x484, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_UFSHCW, .name = "ufshcw", .sid = TEGRA186_SID_UFSHC, .regs = { .sid = { .override = 0x488, .security = 0x48c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVDISPLAYR, .name = "nvdisplayr", .sid = TEGRA186_SID_NVDISPLAY, .regs = { .sid = { .override = 0x490, .security = 0x494, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_BPMPR, .name = "bpmpr", .sid = TEGRA186_SID_BPMP, .regs = { .sid = { .override = 0x498, .security = 0x49c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_BPMPW, .name = "bpmpw", .sid = TEGRA186_SID_BPMP, .regs = { .sid = { .override = 0x4a0, .security = 0x4a4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_BPMPDMAR, .name = "bpmpdmar", .sid = TEGRA186_SID_BPMP, .regs = { .sid = { .override = 0x4a8, .security = 0x4ac, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_BPMPDMAW, .name = "bpmpdmaw", .sid = TEGRA186_SID_BPMP, .regs = { .sid = { .override = 0x4b0, .security = 0x4b4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AONR, .name = "aonr", .sid = TEGRA186_SID_AON, .regs = { .sid = { .override = 0x4b8, .security = 0x4bc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AONW, .name = "aonw", .sid = TEGRA186_SID_AON, .regs = { .sid = { .override = 0x4c0, .security = 0x4c4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AONDMAR, .name = "aondmar", .sid = TEGRA186_SID_AON, .regs = { .sid = { .override = 0x4c8, .security = 0x4cc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_AONDMAW, .name = "aondmaw", .sid = TEGRA186_SID_AON, .regs = { .sid = { .override = 0x4d0, .security = 0x4d4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SCER, .name = "scer", .sid = TEGRA186_SID_SCE, .regs = { .sid = { .override = 0x4d8, .security = 0x4dc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SCEW, .name = "scew", .sid = TEGRA186_SID_SCE, .regs = { .sid = { .override = 0x4e0, .security = 0x4e4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SCEDMAR, .name = "scedmar", .sid = TEGRA186_SID_SCE, .regs = { .sid = { .override = 0x4e8, .security = 0x4ec, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_SCEDMAW, .name = "scedmaw", .sid = TEGRA186_SID_SCE, .regs = { .sid = { .override = 0x4f0, .security = 0x4f4, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_APEDMAR, .name = "apedmar", .sid = TEGRA186_SID_APE, .regs = { .sid = { .override = 0x4f8, .security = 0x4fc, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_APEDMAW, .name = "apedmaw", .sid = TEGRA186_SID_APE, .regs = { .sid = { .override = 0x500, .security = 0x504, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVDISPLAYR1, .name = "nvdisplayr1", .sid = TEGRA186_SID_NVDISPLAY, .regs = { .sid = { .override = 0x508, .security = 0x50c, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_VICSRD1, .name = "vicsrd1", .sid = TEGRA186_SID_VIC, .regs = { .sid = { .override = 0x510, .security = 0x514, }, }, }, { .id = TEGRA186_MEMORY_CLIENT_NVDECSRD1, .name = "nvdecsrd1", .sid = TEGRA186_SID_NVDEC, .regs = { .sid = { .override = 0x518, .security = 0x51c, }, }, }, }; const struct tegra_mc_soc tegra186_mc_soc = { .num_clients = ARRAY_SIZE(tegra186_mc_clients), .clients = tegra186_mc_clients, .num_address_bits = 40, .num_channels = 4, .client_id_mask = 0xff, .intmask = MC_INT_DECERR_GENERALIZED_CARVEOUT | MC_INT_DECERR_MTS | MC_INT_SECERR_SEC | MC_INT_DECERR_VPR | MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM, .ops = &tegra186_mc_ops, .ch_intmask = 0x0000000f, .global_intstatus_channel_shift = 0, }; #endif
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