// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2014 NVIDIA CORPORATION. All rights reserved.
*/
#include <linux/device.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <dt-bindings/memory/tegra30-mc.h>
#include "mc.h"
static const unsigned long tegra30_mc_emem_regs[] = {
MC_EMEM_ARB_CFG,
MC_EMEM_ARB_OUTSTANDING_REQ,
MC_EMEM_ARB_TIMING_RCD,
MC_EMEM_ARB_TIMING_RP,
MC_EMEM_ARB_TIMING_RC,
MC_EMEM_ARB_TIMING_RAS,
MC_EMEM_ARB_TIMING_FAW,
MC_EMEM_ARB_TIMING_RRD,
MC_EMEM_ARB_TIMING_RAP2PRE,
MC_EMEM_ARB_TIMING_WAP2PRE,
MC_EMEM_ARB_TIMING_R2R,
MC_EMEM_ARB_TIMING_W2W,
MC_EMEM_ARB_TIMING_R2W,
MC_EMEM_ARB_TIMING_W2R,
MC_EMEM_ARB_DA_TURNS,
MC_EMEM_ARB_DA_COVERS,
MC_EMEM_ARB_MISC0,
MC_EMEM_ARB_RING1_THROTTLE,
};
static const struct tegra_mc_client tegra30_mc_clients[] = {
{
.id = 0x00,
.name = "ptcr",
.swgroup = TEGRA_SWGROUP_PTC,
.regs = {
.la = {
.reg = 0x34c,
.shift = 0,
.mask = 0xff,
.def = 0x0,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x01,
.name = "display0a",
.swgroup = TEGRA_SWGROUP_DC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 1,
},
.la = {
.reg = 0x2e8,
.shift = 0,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 128,
}, {
.id = 0x02,
.name = "display0ab",
.swgroup = TEGRA_SWGROUP_DCB,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 2,
},
.la = {
.reg = 0x2f4,
.shift = 0,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 128,
}, {
.id = 0x03,
.name = "display0b",
.swgroup = TEGRA_SWGROUP_DC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 3,
},
.la = {
.reg = 0x2e8,
.shift = 16,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x04,
.name = "display0bb",
.swgroup = TEGRA_SWGROUP_DCB,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 4,
},
.la = {
.reg = 0x2f4,
.shift = 16,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x05,
.name = "display0c",
.swgroup = TEGRA_SWGROUP_DC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 5,
},
.la = {
.reg = 0x2ec,
.shift = 0,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 128,
}, {
.id = 0x06,
.name = "display0cb",
.swgroup = TEGRA_SWGROUP_DCB,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 6,
},
.la = {
.reg = 0x2f8,
.shift = 0,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 128,
}, {
.id = 0x07,
.name = "display1b",
.swgroup = TEGRA_SWGROUP_DC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 7,
},
.la = {
.reg = 0x2ec,
.shift = 16,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x08,
.name = "display1bb",
.swgroup = TEGRA_SWGROUP_DCB,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 8,
},
.la = {
.reg = 0x2f8,
.shift = 16,
.mask = 0xff,
.def = 0x4e,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x09,
.name = "eppup",
.swgroup = TEGRA_SWGROUP_EPP,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 9,
},
.la = {
.reg = 0x300,
.shift = 0,
.mask = 0xff,
.def = 0x17,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x0a,
.name = "g2pr",
.swgroup = TEGRA_SWGROUP_G2,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 10,
},
.la = {
.reg = 0x308,
.shift = 0,
.mask = 0xff,
.def = 0x09,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x0b,
.name = "g2sr",
.swgroup = TEGRA_SWGROUP_G2,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 11,
},
.la = {
.reg = 0x308,
.shift = 16,
.mask = 0xff,
.def = 0x09,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x0c,
.name = "mpeunifbr",
.swgroup = TEGRA_SWGROUP_MPE,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 12,
},
.la = {
.reg = 0x328,
.shift = 0,
.mask = 0xff,
.def = 0x50,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x0d,
.name = "viruv",
.swgroup = TEGRA_SWGROUP_VI,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 13,
},
.la = {
.reg = 0x364,
.shift = 0,
.mask = 0xff,
.def = 0x2c,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x0e,
.name = "afir",
.swgroup = TEGRA_SWGROUP_AFI,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 14,
},
.la = {
.reg = 0x2e0,
.shift = 0,
.mask = 0xff,
.def = 0x10,
},
},
.fifo_size = 16 * 32,
}, {
.id = 0x0f,
.name = "avpcarm7r",
.swgroup = TEGRA_SWGROUP_AVPC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 15,
},
.la = {
.reg = 0x2e4,
.shift = 0,
.mask = 0xff,
.def = 0x04,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x10,
.name = "displayhc",
.swgroup = TEGRA_SWGROUP_DC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 16,
},
.la = {
.reg = 0x2f0,
.shift = 0,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x11,
.name = "displayhcb",
.swgroup = TEGRA_SWGROUP_DCB,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 17,
},
.la = {
.reg = 0x2fc,
.shift = 0,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x12,
.name = "fdcdrd",
.swgroup = TEGRA_SWGROUP_NV,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 18,
},
.la = {
.reg = 0x334,
.shift = 0,
.mask = 0xff,
.def = 0x0a,
},
},
.fifo_size = 16 * 48,
}, {
.id = 0x13,
.name = "fdcdrd2",
.swgroup = TEGRA_SWGROUP_NV2,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 19,
},
.la = {
.reg = 0x33c,
.shift = 0,
.mask = 0xff,
.def = 0x0a,
},
},
.fifo_size = 16 * 48,
}, {
.id = 0x14,
.name = "g2dr",
.swgroup = TEGRA_SWGROUP_G2,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 20,
},
.la = {
.reg = 0x30c,
.shift = 0,
.mask = 0xff,
.def = 0x0a,
},
},
.fifo_size = 16 * 48,
}, {
.id = 0x15,
.name = "hdar",
.swgroup = TEGRA_SWGROUP_HDA,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 21,
},
.la = {
.reg = 0x318,
.shift = 0,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 16,
}, {
.id = 0x16,
.name = "host1xdmar",
.swgroup = TEGRA_SWGROUP_HC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 22,
},
.la = {
.reg = 0x310,
.shift = 0,
.mask = 0xff,
.def = 0x05,
},
},
.fifo_size = 16 * 16,
}, {
.id = 0x17,
.name = "host1xr",
.swgroup = TEGRA_SWGROUP_HC,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 23,
},
.la = {
.reg = 0x310,
.shift = 16,
.mask = 0xff,
.def = 0x50,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x18,
.name = "idxsrd",
.swgroup = TEGRA_SWGROUP_NV,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 24,
},
.la = {
.reg = 0x334,
.shift = 16,
.mask = 0xff,
.def = 0x13,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x19,
.name = "idxsrd2",
.swgroup = TEGRA_SWGROUP_NV2,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 25,
},
.la = {
.reg = 0x33c,
.shift = 16,
.mask = 0xff,
.def = 0x13,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x1a,
.name = "mpe_ipred",
.swgroup = TEGRA_SWGROUP_MPE,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 26,
},
.la = {
.reg = 0x328,
.shift = 16,
.mask = 0xff,
.def = 0x80,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x1b,
.name = "mpeamemrd",
.swgroup = TEGRA_SWGROUP_MPE,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 27,
},
.la = {
.reg = 0x32c,
.shift = 0,
.mask = 0xff,
.def = 0x42,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x1c,
.name = "mpecsrd",
.swgroup = TEGRA_SWGROUP_MPE,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 28,
},
.la = {
.reg = 0x32c,
.shift = 16,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x1d,
.name = "ppcsahbdmar",
.swgroup = TEGRA_SWGROUP_PPCS,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 29,
},
.la = {
.reg = 0x344,
.shift = 0,
.mask = 0xff,
.def = 0x10,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x1e,
.name = "ppcsahbslvr",
.swgroup = TEGRA_SWGROUP_PPCS,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 30,
},
.la = {
.reg = 0x344,
.shift = 16,
.mask = 0xff,
.def = 0x12,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x1f,
.name = "satar",
.swgroup = TEGRA_SWGROUP_SATA,
.regs = {
.smmu = {
.reg = 0x228,
.bit = 31,
},
.la = {
.reg = 0x350,
.shift = 0,
.mask = 0xff,
.def = 0x33,
},
},
.fifo_size = 16 * 32,
}, {
.id = 0x20,
.name = "texsrd",
.swgroup = TEGRA_SWGROUP_NV,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 0,
},
.la = {
.reg = 0x338,
.shift = 0,
.mask = 0xff,
.def = 0x13,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x21,
.name = "texsrd2",
.swgroup = TEGRA_SWGROUP_NV2,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 1,
},
.la = {
.reg = 0x340,
.shift = 0,
.mask = 0xff,
.def = 0x13,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x22,
.name = "vdebsevr",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 2,
},
.la = {
.reg = 0x354,
.shift = 0,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x23,
.name = "vdember",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 3,
},
.la = {
.reg = 0x354,
.shift = 16,
.mask = 0xff,
.def = 0xd0,
},
},
.fifo_size = 16 * 4,
}, {
.id = 0x24,
.name = "vdemcer",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 4,
},
.la = {
.reg = 0x358,
.shift = 0,
.mask = 0xff,
.def = 0x2a,
},
},
.fifo_size = 16 * 16,
}, {
.id = 0x25,
.name = "vdetper",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 5,
},
.la = {
.reg = 0x358,
.shift = 16,
.mask = 0xff,
.def = 0x74,
},
},
.fifo_size = 16 * 16,
}, {
.id = 0x26,
.name = "mpcorelpr",
.swgroup = TEGRA_SWGROUP_MPCORELP,
.regs = {
.la = {
.reg = 0x324,
.shift = 0,
.mask = 0xff,
.def = 0x04,
},
},
.fifo_size = 16 * 14,
}, {
.id = 0x27,
.name = "mpcorer",
.swgroup = TEGRA_SWGROUP_MPCORE,
.regs = {
.la = {
.reg = 0x320,
.shift = 0,
.mask = 0xff,
.def = 0x04,
},
},
.fifo_size = 16 * 14,
}, {
.id = 0x28,
.name = "eppu",
.swgroup = TEGRA_SWGROUP_EPP,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 8,
},
.la = {
.reg = 0x300,
.shift = 16,
.mask = 0xff,
.def = 0x6c,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x29,
.name = "eppv",
.swgroup = TEGRA_SWGROUP_EPP,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 9,
},
.la = {
.reg = 0x304,
.shift = 0,
.mask = 0xff,
.def = 0x6c,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x2a,
.name = "eppy",
.swgroup = TEGRA_SWGROUP_EPP,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 10,
},
.la = {
.reg = 0x304,
.shift = 16,
.mask = 0xff,
.def = 0x6c,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x2b,
.name = "mpeunifbw",
.swgroup = TEGRA_SWGROUP_MPE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 11,
},
.la = {
.reg = 0x330,
.shift = 0,
.mask = 0xff,
.def = 0x13,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x2c,
.name = "viwsb",
.swgroup = TEGRA_SWGROUP_VI,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 12,
},
.la = {
.reg = 0x364,
.shift = 16,
.mask = 0xff,
.def = 0x12,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x2d,
.name = "viwu",
.swgroup = TEGRA_SWGROUP_VI,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 13,
},
.la = {
.reg = 0x368,
.shift = 0,
.mask = 0xff,
.def = 0xb2,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x2e,
.name = "viwv",
.swgroup = TEGRA_SWGROUP_VI,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 14,
},
.la = {
.reg = 0x368,
.shift = 16,
.mask = 0xff,
.def = 0xb2,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x2f,
.name = "viwy",
.swgroup = TEGRA_SWGROUP_VI,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 15,
},
.la = {
.reg = 0x36c,
.shift = 0,
.mask = 0xff,
.def = 0x12,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x30,
.name = "g2dw",
.swgroup = TEGRA_SWGROUP_G2,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 16,
},
.la = {
.reg = 0x30c,
.shift = 16,
.mask = 0xff,
.def = 0x9,
},
},
.fifo_size = 16 * 128,
}, {
.id = 0x31,
.name = "afiw",
.swgroup = TEGRA_SWGROUP_AFI,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 17,
},
.la = {
.reg = 0x2e0,
.shift = 16,
.mask = 0xff,
.def = 0x0c,
},
},
.fifo_size = 16 * 32,
}, {
.id = 0x32,
.name = "avpcarm7w",
.swgroup = TEGRA_SWGROUP_AVPC,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 18,
},
.la = {
.reg = 0x2e4,
.shift = 16,
.mask = 0xff,
.def = 0x0e,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x33,
.name = "fdcdwr",
.swgroup = TEGRA_SWGROUP_NV,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 19,
},
.la = {
.reg = 0x338,
.shift = 16,
.mask = 0xff,
.def = 0x0a,
},
},
.fifo_size = 16 * 48,
}, {
.id = 0x34,
.name = "fdcdwr2",
.swgroup = TEGRA_SWGROUP_NV2,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 20,
},
.la = {
.reg = 0x340,
.shift = 16,
.mask = 0xff,
.def = 0x0a,
},
},
.fifo_size = 16 * 48,
}, {
.id = 0x35,
.name = "hdaw",
.swgroup = TEGRA_SWGROUP_HDA,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 21,
},
.la = {
.reg = 0x318,
.shift = 16,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 16,
}, {
.id = 0x36,
.name = "host1xw",
.swgroup = TEGRA_SWGROUP_HC,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 22,
},
.la = {
.reg = 0x314,
.shift = 0,
.mask = 0xff,
.def = 0x10,
},
},
.fifo_size = 16 * 32,
}, {
.id = 0x37,
.name = "ispw",
.swgroup = TEGRA_SWGROUP_ISP,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 23,
},
.la = {
.reg = 0x31c,
.shift = 0,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 64,
}, {
.id = 0x38,
.name = "mpcorelpw",
.swgroup = TEGRA_SWGROUP_MPCORELP,
.regs = {
.la = {
.reg = 0x324,
.shift = 16,
.mask = 0xff,
.def = 0x0e,
},
},
.fifo_size = 16 * 24,
}, {
.id = 0x39,
.name = "mpcorew",
.swgroup = TEGRA_SWGROUP_MPCORE,
.regs = {
.la = {
.reg = 0x320,
.shift = 16,
.mask = 0xff,
.def = 0x0e,
},
},
.fifo_size = 16 * 24,
}, {
.id = 0x3a,
.name = "mpecswr",
.swgroup = TEGRA_SWGROUP_MPE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 26,
},
.la = {
.reg = 0x330,
.shift = 16,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 8,
}, {
.id = 0x3b,
.name = "ppcsahbdmaw",
.swgroup = TEGRA_SWGROUP_PPCS,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 27,
},
.la = {
.reg = 0x348,
.shift = 0,
.mask = 0xff,
.def = 0x10,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x3c,
.name = "ppcsahbslvw",
.swgroup = TEGRA_SWGROUP_PPCS,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 28,
},
.la = {
.reg = 0x348,
.shift = 16,
.mask = 0xff,
.def = 0x06,
},
},
.fifo_size = 16 * 4,
}, {
.id = 0x3d,
.name = "sataw",
.swgroup = TEGRA_SWGROUP_SATA,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 29,
},
.la = {
.reg = 0x350,
.shift = 16,
.mask = 0xff,
.def = 0x33,
},
},
.fifo_size = 16 * 32,
}, {
.id = 0x3e,
.name = "vdebsevw",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 30,
},
.la = {
.reg = 0x35c,
.shift = 0,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 4,
}, {
.id = 0x3f,
.name = "vdedbgw",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x22c,
.bit = 31,
},
.la = {
.reg = 0x35c,
.shift = 16,
.mask = 0xff,
.def = 0xff,
},
},
.fifo_size = 16 * 16,
}, {
.id = 0x40,
.name = "vdembew",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x230,
.bit = 0,
},
.la = {
.reg = 0x360,
.shift = 0,
.mask = 0xff,
.def = 0x42,
},
},
.fifo_size = 16 * 2,
}, {
.id = 0x41,
.name = "vdetpmw",
.swgroup = TEGRA_SWGROUP_VDE,
.regs = {
.smmu = {
.reg = 0x230,
.bit = 1,
},
.la = {
.reg = 0x360,
.shift = 16,
.mask = 0xff,
.def = 0x2a,
},
},
.fifo_size = 16 * 16,
},
};
static const struct tegra_smmu_swgroup tegra30_swgroups[] = {
{ .name = "dc", .swgroup = TEGRA_SWGROUP_DC, .reg = 0x240 },
{ .name = "dcb", .swgroup = TEGRA_SWGROUP_DCB, .reg = 0x244 },
{ .name = "epp", .swgroup = TEGRA_SWGROUP_EPP, .reg = 0x248 },
{ .name = "g2", .swgroup = TEGRA_SWGROUP_G2, .reg = 0x24c },
{ .name = "mpe", .swgroup = TEGRA_SWGROUP_MPE, .reg = 0x264 },
{ .name = "vi", .swgroup = TEGRA_SWGROUP_VI, .reg = 0x280 },
{ .name = "afi", .swgroup = TEGRA_SWGROUP_AFI, .reg = 0x238 },
{ .name = "avpc", .swgroup = TEGRA_SWGROUP_AVPC, .reg = 0x23c },
{ .name = "nv", .swgroup = TEGRA_SWGROUP_NV, .reg = 0x268 },
{ .name = "nv2", .swgroup = TEGRA_SWGROUP_NV2, .reg = 0x26c },
{ .name = "hda", .swgroup = TEGRA_SWGROUP_HDA, .reg = 0x254 },
{ .name = "hc", .swgroup = TEGRA_SWGROUP_HC, .reg = 0x250 },
{ .name = "ppcs", .swgroup = TEGRA_SWGROUP_PPCS, .reg = 0x270 },
{ .name = "sata", .swgroup = TEGRA_SWGROUP_SATA, .reg = 0x278 },
{ .name = "vde", .swgroup = TEGRA_SWGROUP_VDE, .reg = 0x27c },
{ .name = "isp", .swgroup = TEGRA_SWGROUP_ISP, .reg = 0x258 },
};
static const unsigned int tegra30_group_drm[] = {
TEGRA_SWGROUP_DC,
TEGRA_SWGROUP_DCB,
TEGRA_SWGROUP_G2,
TEGRA_SWGROUP_NV,
TEGRA_SWGROUP_NV2,
};
static const struct tegra_smmu_group_soc tegra30_groups[] = {
{
.name = "drm",
.swgroups = tegra30_group_drm,
.num_swgroups = ARRAY_SIZE(tegra30_group_drm),
},
};
static const struct tegra_smmu_soc tegra30_smmu_soc = {
.clients = tegra30_mc_clients,
.num_clients = ARRAY_SIZE(tegra30_mc_clients),
.swgroups = tegra30_swgroups,
.num_swgroups = ARRAY_SIZE(tegra30_swgroups),
.groups = tegra30_groups,
.num_groups = ARRAY_SIZE(tegra30_groups),
.supports_round_robin_arbitration = false,
.supports_request_limit = false,
.num_tlb_lines = 16,
.num_asids = 4,
};
#define TEGRA30_MC_RESET(_name, _control, _status, _bit) \
{ \
.name = #_name, \
.id = TEGRA30_MC_RESET_##_name, \
.control = _control, \
.status = _status, \
.bit = _bit, \
}
static const struct tegra_mc_reset tegra30_mc_resets[] = {
TEGRA30_MC_RESET(AFI, 0x200, 0x204, 0),
TEGRA30_MC_RESET(AVPC, 0x200, 0x204, 1),
TEGRA30_MC_RESET(DC, 0x200, 0x204, 2),
TEGRA30_MC_RESET(DCB, 0x200, 0x204, 3),
TEGRA30_MC_RESET(EPP, 0x200, 0x204, 4),
TEGRA30_MC_RESET(2D, 0x200, 0x204, 5),
TEGRA30_MC_RESET(HC, 0x200, 0x204, 6),
TEGRA30_MC_RESET(HDA, 0x200, 0x204, 7),
TEGRA30_MC_RESET(ISP, 0x200, 0x204, 8),
TEGRA30_MC_RESET(MPCORE, 0x200, 0x204, 9),
TEGRA30_MC_RESET(MPCORELP, 0x200, 0x204, 10),
TEGRA30_MC_RESET(MPE, 0x200, 0x204, 11),
TEGRA30_MC_RESET(3D, 0x200, 0x204, 12),
TEGRA30_MC_RESET(3D2, 0x200, 0x204, 13),
TEGRA30_MC_RESET(PPCS, 0x200, 0x204, 14),
TEGRA30_MC_RESET(SATA, 0x200, 0x204, 15),
TEGRA30_MC_RESET(VDE, 0x200, 0x204, 16),
TEGRA30_MC_RESET(VI, 0x200, 0x204, 17),
};
static void tegra30_mc_tune_client_latency(struct tegra_mc *mc,
const struct tegra_mc_client *client,
unsigned int bandwidth_mbytes_sec)
{
u32 arb_tolerance_compensation_nsec, arb_tolerance_compensation_div;
unsigned int fifo_size = client->fifo_size;
u32 arb_nsec, la_ticks, value;
/* see 18.4.1 Client Configuration in Tegra3 TRM v03p */
if (bandwidth_mbytes_sec)
arb_nsec = fifo_size * NSEC_PER_USEC / bandwidth_mbytes_sec;
else
arb_nsec = U32_MAX;
/*
* Latency allowness should be set with consideration for the module's
* latency tolerance and internal buffering capabilities.
*
* Display memory clients use isochronous transfers and have very low
* tolerance to a belated transfers. Hence we need to compensate the
* memory arbitration imperfection for them in order to prevent FIFO
* underflow condition when memory bus is busy.
*
* VI clients also need a stronger compensation.
*/
switch (client->swgroup) {
case TEGRA_SWGROUP_MPCORE:
case TEGRA_SWGROUP_PTC:
/*
* We always want lower latency for these clients, hence
* don't touch them.
*/
return;
case TEGRA_SWGROUP_DC:
case TEGRA_SWGROUP_DCB:
arb_tolerance_compensation_nsec = 1050;
arb_tolerance_compensation_div = 2;
break;
case TEGRA_SWGROUP_VI:
arb_tolerance_compensation_nsec = 1050;
arb_tolerance_compensation_div = 1;
break;
default:
arb_tolerance_compensation_nsec = 150;
arb_tolerance_compensation_div = 1;
break;
}
if (arb_nsec > arb_tolerance_compensation_nsec)
arb_nsec -= arb_tolerance_compensation_nsec;
else
arb_nsec = 0;
arb_nsec /= arb_tolerance_compensation_div;
/*
* Latency allowance is a number of ticks a request from a particular
* client may wait in the EMEM arbiter before it becomes a high-priority
* request.
*/
la_ticks = arb_nsec / mc->tick;
la_ticks = min(la_ticks, client->regs.la.mask);
value = mc_readl(mc, client->regs.la.reg);
value &= ~(client->regs.la.mask << client->regs.la.shift);
value |= la_ticks << client->regs.la.shift;
mc_writel(mc, value, client->regs.la.reg);
}
static int tegra30_mc_icc_set(struct icc_node *src, struct icc_node *dst)
{
struct tegra_mc *mc = icc_provider_to_tegra_mc(src->provider);
const struct tegra_mc_client *client = &mc->soc->clients[src->id];
u64 peak_bandwidth = icc_units_to_bps(src->peak_bw);
/*
* Skip pre-initialization that is done by icc_node_add(), which sets
* bandwidth to maximum for all clients before drivers are loaded.
*
* This doesn't make sense for us because we don't have drivers for all
* clients and it's okay to keep configuration left from bootloader
* during boot, at least for today.
*/
if (src == dst)
return 0;
/* convert bytes/sec to megabytes/sec */
do_div(peak_bandwidth, 1000000);
tegra30_mc_tune_client_latency(mc, client, peak_bandwidth);
return 0;
}
static int tegra30_mc_icc_aggreate(struct icc_node *node, u32 tag, u32 avg_bw,
u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
{
/*
* ISO clients need to reserve extra bandwidth up-front because
* there could be high bandwidth pressure during initial filling
* of the client's FIFO buffers. Secondly, we need to take into
* account impurities of the memory subsystem.
*/
if (tag & TEGRA_MC_ICC_TAG_ISO)
peak_bw = tegra_mc_scale_percents(peak_bw, 400);
*agg_avg += avg_bw;
*agg_peak = max(*agg_peak, peak_bw);
return 0;
}
static struct icc_node_data *
tegra30_mc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data)
{
struct tegra_mc *mc = icc_provider_to_tegra_mc(data);
const struct tegra_mc_client *client;
unsigned int i, idx = spec->args[0];
struct icc_node_data *ndata;
struct icc_node *node;
list_for_each_entry(node, &mc->provider.nodes, node_list) {
if (node->id != idx)
continue;
ndata = kzalloc(sizeof(*ndata), GFP_KERNEL);
if (!ndata)
return ERR_PTR(-ENOMEM);
client = &mc->soc->clients[idx];
ndata->node = node;
switch (client->swgroup) {
case TEGRA_SWGROUP_DC:
case TEGRA_SWGROUP_DCB:
case TEGRA_SWGROUP_PTC:
case TEGRA_SWGROUP_VI:
/* these clients are isochronous by default */
ndata->tag = TEGRA_MC_ICC_TAG_ISO;
break;
default:
ndata->tag = TEGRA_MC_ICC_TAG_DEFAULT;
break;
}
return ndata;
}
for (i = 0; i < mc->soc->num_clients; i++) {
if (mc->soc->clients[i].id == idx)
return ERR_PTR(-EPROBE_DEFER);
}
dev_err(mc->dev, "invalid ICC client ID %u\n", idx);
return ERR_PTR(-EINVAL);
}
static const struct tegra_mc_icc_ops tegra30_mc_icc_ops = {
.xlate_extended = tegra30_mc_of_icc_xlate_extended,
.aggregate = tegra30_mc_icc_aggreate,
.set = tegra30_mc_icc_set,
};
const struct tegra_mc_soc tegra30_mc_soc = {
.clients = tegra30_mc_clients,
.num_clients = ARRAY_SIZE(tegra30_mc_clients),
.num_address_bits = 32,
.atom_size = 16,
.client_id_mask = 0x7f,
.smmu = &tegra30_smmu_soc,
.emem_regs = tegra30_mc_emem_regs,
.num_emem_regs = ARRAY_SIZE(tegra30_mc_emem_regs),
.intmask = MC_INT_INVALID_SMMU_PAGE | MC_INT_SECURITY_VIOLATION |
MC_INT_DECERR_EMEM,
.reset_ops = &tegra_mc_reset_ops_common,
.resets = tegra30_mc_resets,
.num_resets = ARRAY_SIZE(tegra30_mc_resets),
.icc_ops = &tegra30_mc_icc_ops,
.ops = &tegra30_mc_ops,
};