From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk104.c | 517 ++++++++++++++++++++++++ 1 file changed, 517 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk104.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk104.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk104.c new file mode 100644 index 000000000..0d8e2ddcc --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk104.c @@ -0,0 +1,517 @@ +/* + * Copyright 2013 Red Hat Inc. + * + * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: Ben Skeggs + */ +#define gk104_clk(p) container_of((p), struct gk104_clk, base) +#include "priv.h" +#include "pll.h" + +#include +#include +#include + +struct gk104_clk_info { + u32 freq; + u32 ssel; + u32 mdiv; + u32 dsrc; + u32 ddiv; + u32 coef; +}; + +struct gk104_clk { + struct nvkm_clk base; + struct gk104_clk_info eng[16]; +}; + +static u32 read_div(struct gk104_clk *, int, u32, u32); +static u32 read_pll(struct gk104_clk *, u32); + +static u32 +read_vco(struct gk104_clk *clk, u32 dsrc) +{ + struct nvkm_device *device = clk->base.subdev.device; + u32 ssrc = nvkm_rd32(device, dsrc); + if (!(ssrc & 0x00000100)) + return read_pll(clk, 0x00e800); + return read_pll(clk, 0x00e820); +} + +static u32 +read_pll(struct gk104_clk *clk, u32 pll) +{ + struct nvkm_device *device = clk->base.subdev.device; + u32 ctrl = nvkm_rd32(device, pll + 0x00); + u32 coef = nvkm_rd32(device, pll + 0x04); + u32 P = (coef & 0x003f0000) >> 16; + u32 N = (coef & 0x0000ff00) >> 8; + u32 M = (coef & 0x000000ff) >> 0; + u32 sclk; + u16 fN = 0xf000; + + if (!(ctrl & 0x00000001)) + return 0; + + switch (pll) { + case 0x00e800: + case 0x00e820: + sclk = device->crystal; + P = 1; + break; + case 0x132000: + sclk = read_pll(clk, 0x132020); + P = (coef & 0x10000000) ? 2 : 1; + break; + case 0x132020: + sclk = read_div(clk, 0, 0x137320, 0x137330); + fN = nvkm_rd32(device, pll + 0x10) >> 16; + break; + case 0x137000: + case 0x137020: + case 0x137040: + case 0x1370e0: + sclk = read_div(clk, (pll & 0xff) / 0x20, 0x137120, 0x137140); + break; + default: + return 0; + } + + if (P == 0) + P = 1; + + sclk = (sclk * N) + (((u16)(fN + 4096) * sclk) >> 13); + return sclk / (M * P); +} + +static u32 +read_div(struct gk104_clk *clk, int doff, u32 dsrc, u32 dctl) +{ + struct nvkm_device *device = clk->base.subdev.device; + u32 ssrc = nvkm_rd32(device, dsrc + (doff * 4)); + u32 sctl = nvkm_rd32(device, dctl + (doff * 4)); + + switch (ssrc & 0x00000003) { + case 0: + if ((ssrc & 0x00030000) != 0x00030000) + return device->crystal; + return 108000; + case 2: + return 100000; + case 3: + if (sctl & 0x80000000) { + u32 sclk = read_vco(clk, dsrc + (doff * 4)); + u32 sdiv = (sctl & 0x0000003f) + 2; + return (sclk * 2) / sdiv; + } + + return read_vco(clk, dsrc + (doff * 4)); + default: + return 0; + } +} + +static u32 +read_mem(struct gk104_clk *clk) +{ + struct nvkm_device *device = clk->base.subdev.device; + switch (nvkm_rd32(device, 0x1373f4) & 0x0000000f) { + case 1: return read_pll(clk, 0x132020); + case 2: return read_pll(clk, 0x132000); + default: + return 0; + } +} + +static u32 +read_clk(struct gk104_clk *clk, int idx) +{ + struct nvkm_device *device = clk->base.subdev.device; + u32 sctl = nvkm_rd32(device, 0x137250 + (idx * 4)); + u32 sclk, sdiv; + + if (idx < 7) { + u32 ssel = nvkm_rd32(device, 0x137100); + if (ssel & (1 << idx)) { + sclk = read_pll(clk, 0x137000 + (idx * 0x20)); + sdiv = 1; + } else { + sclk = read_div(clk, idx, 0x137160, 0x1371d0); + sdiv = 0; + } + } else { + u32 ssrc = nvkm_rd32(device, 0x137160 + (idx * 0x04)); + if ((ssrc & 0x00000003) == 0x00000003) { + sclk = read_div(clk, idx, 0x137160, 0x1371d0); + if (ssrc & 0x00000100) { + if (ssrc & 0x40000000) + sclk = read_pll(clk, 0x1370e0); + sdiv = 1; + } else { + sdiv = 0; + } + } else { + sclk = read_div(clk, idx, 0x137160, 0x1371d0); + sdiv = 0; + } + } + + if (sctl & 0x80000000) { + if (sdiv) + sdiv = ((sctl & 0x00003f00) >> 8) + 2; + else + sdiv = ((sctl & 0x0000003f) >> 0) + 2; + return (sclk * 2) / sdiv; + } + + return sclk; +} + +static int +gk104_clk_read(struct nvkm_clk *base, enum nv_clk_src src) +{ + struct gk104_clk *clk = gk104_clk(base); + struct nvkm_subdev *subdev = &clk->base.subdev; + struct nvkm_device *device = subdev->device; + + switch (src) { + case nv_clk_src_crystal: + return device->crystal; + case nv_clk_src_href: + return 100000; + case nv_clk_src_mem: + return read_mem(clk); + case nv_clk_src_gpc: + return read_clk(clk, 0x00); + case nv_clk_src_rop: + return read_clk(clk, 0x01); + case nv_clk_src_hubk07: + return read_clk(clk, 0x02); + case nv_clk_src_hubk06: + return read_clk(clk, 0x07); + case nv_clk_src_hubk01: + return read_clk(clk, 0x08); + case nv_clk_src_pmu: + return read_clk(clk, 0x0c); + case nv_clk_src_vdec: + return read_clk(clk, 0x0e); + default: + nvkm_error(subdev, "invalid clock source %d\n", src); + return -EINVAL; + } +} + +static u32 +calc_div(struct gk104_clk *clk, int idx, u32 ref, u32 freq, u32 *ddiv) +{ + u32 div = min((ref * 2) / freq, (u32)65); + if (div < 2) + div = 2; + + *ddiv = div - 2; + return (ref * 2) / div; +} + +static u32 +calc_src(struct gk104_clk *clk, int idx, u32 freq, u32 *dsrc, u32 *ddiv) +{ + u32 sclk; + + /* use one of the fixed frequencies if possible */ + *ddiv = 0x00000000; + switch (freq) { + case 27000: + case 108000: + *dsrc = 0x00000000; + if (freq == 108000) + *dsrc |= 0x00030000; + return freq; + case 100000: + *dsrc = 0x00000002; + return freq; + default: + *dsrc = 0x00000003; + break; + } + + /* otherwise, calculate the closest divider */ + sclk = read_vco(clk, 0x137160 + (idx * 4)); + if (idx < 7) + sclk = calc_div(clk, idx, sclk, freq, ddiv); + return sclk; +} + +static u32 +calc_pll(struct gk104_clk *clk, int idx, u32 freq, u32 *coef) +{ + struct nvkm_subdev *subdev = &clk->base.subdev; + struct nvkm_bios *bios = subdev->device->bios; + struct nvbios_pll limits; + int N, M, P, ret; + + ret = nvbios_pll_parse(bios, 0x137000 + (idx * 0x20), &limits); + if (ret) + return 0; + + limits.refclk = read_div(clk, idx, 0x137120, 0x137140); + if (!limits.refclk) + return 0; + + ret = gt215_pll_calc(subdev, &limits, freq, &N, NULL, &M, &P); + if (ret <= 0) + return 0; + + *coef = (P << 16) | (N << 8) | M; + return ret; +} + +static int +calc_clk(struct gk104_clk *clk, + struct nvkm_cstate *cstate, int idx, int dom) +{ + struct gk104_clk_info *info = &clk->eng[idx]; + u32 freq = cstate->domain[dom]; + u32 src0, div0, div1D, div1P = 0; + u32 clk0, clk1 = 0; + + /* invalid clock domain */ + if (!freq) + return 0; + + /* first possible path, using only dividers */ + clk0 = calc_src(clk, idx, freq, &src0, &div0); + clk0 = calc_div(clk, idx, clk0, freq, &div1D); + + /* see if we can get any closer using PLLs */ + if (clk0 != freq && (0x0000ff87 & (1 << idx))) { + if (idx <= 7) + clk1 = calc_pll(clk, idx, freq, &info->coef); + else + clk1 = cstate->domain[nv_clk_src_hubk06]; + clk1 = calc_div(clk, idx, clk1, freq, &div1P); + } + + /* select the method which gets closest to target freq */ + if (abs((int)freq - clk0) <= abs((int)freq - clk1)) { + info->dsrc = src0; + if (div0) { + info->ddiv |= 0x80000000; + info->ddiv |= div0; + } + if (div1D) { + info->mdiv |= 0x80000000; + info->mdiv |= div1D; + } + info->ssel = 0; + info->freq = clk0; + } else { + if (div1P) { + info->mdiv |= 0x80000000; + info->mdiv |= div1P << 8; + } + info->ssel = (1 << idx); + info->dsrc = 0x40000100; + info->freq = clk1; + } + + return 0; +} + +static int +gk104_clk_calc(struct nvkm_clk *base, struct nvkm_cstate *cstate) +{ + struct gk104_clk *clk = gk104_clk(base); + int ret; + + if ((ret = calc_clk(clk, cstate, 0x00, nv_clk_src_gpc)) || + (ret = calc_clk(clk, cstate, 0x01, nv_clk_src_rop)) || + (ret = calc_clk(clk, cstate, 0x02, nv_clk_src_hubk07)) || + (ret = calc_clk(clk, cstate, 0x07, nv_clk_src_hubk06)) || + (ret = calc_clk(clk, cstate, 0x08, nv_clk_src_hubk01)) || + (ret = calc_clk(clk, cstate, 0x0c, nv_clk_src_pmu)) || + (ret = calc_clk(clk, cstate, 0x0e, nv_clk_src_vdec))) + return ret; + + return 0; +} + +static void +gk104_clk_prog_0(struct gk104_clk *clk, int idx) +{ + struct gk104_clk_info *info = &clk->eng[idx]; + struct nvkm_device *device = clk->base.subdev.device; + if (!info->ssel) { + nvkm_mask(device, 0x1371d0 + (idx * 0x04), 0x8000003f, info->ddiv); + nvkm_wr32(device, 0x137160 + (idx * 0x04), info->dsrc); + } +} + +static void +gk104_clk_prog_1_0(struct gk104_clk *clk, int idx) +{ + struct nvkm_device *device = clk->base.subdev.device; + nvkm_mask(device, 0x137100, (1 << idx), 0x00000000); + nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, 0x137100) & (1 << idx))) + break; + ); +} + +static void +gk104_clk_prog_1_1(struct gk104_clk *clk, int idx) +{ + struct nvkm_device *device = clk->base.subdev.device; + nvkm_mask(device, 0x137160 + (idx * 0x04), 0x00000100, 0x00000000); +} + +static void +gk104_clk_prog_2(struct gk104_clk *clk, int idx) +{ + struct gk104_clk_info *info = &clk->eng[idx]; + struct nvkm_device *device = clk->base.subdev.device; + const u32 addr = 0x137000 + (idx * 0x20); + nvkm_mask(device, addr + 0x00, 0x00000004, 0x00000000); + nvkm_mask(device, addr + 0x00, 0x00000001, 0x00000000); + if (info->coef) { + nvkm_wr32(device, addr + 0x04, info->coef); + nvkm_mask(device, addr + 0x00, 0x00000001, 0x00000001); + + /* Test PLL lock */ + nvkm_mask(device, addr + 0x00, 0x00000010, 0x00000000); + nvkm_msec(device, 2000, + if (nvkm_rd32(device, addr + 0x00) & 0x00020000) + break; + ); + nvkm_mask(device, addr + 0x00, 0x00000010, 0x00000010); + + /* Enable sync mode */ + nvkm_mask(device, addr + 0x00, 0x00000004, 0x00000004); + } +} + +static void +gk104_clk_prog_3(struct gk104_clk *clk, int idx) +{ + struct gk104_clk_info *info = &clk->eng[idx]; + struct nvkm_device *device = clk->base.subdev.device; + if (info->ssel) + nvkm_mask(device, 0x137250 + (idx * 0x04), 0x00003f00, info->mdiv); + else + nvkm_mask(device, 0x137250 + (idx * 0x04), 0x0000003f, info->mdiv); +} + +static void +gk104_clk_prog_4_0(struct gk104_clk *clk, int idx) +{ + struct gk104_clk_info *info = &clk->eng[idx]; + struct nvkm_device *device = clk->base.subdev.device; + if (info->ssel) { + nvkm_mask(device, 0x137100, (1 << idx), info->ssel); + nvkm_msec(device, 2000, + u32 tmp = nvkm_rd32(device, 0x137100) & (1 << idx); + if (tmp == info->ssel) + break; + ); + } +} + +static void +gk104_clk_prog_4_1(struct gk104_clk *clk, int idx) +{ + struct gk104_clk_info *info = &clk->eng[idx]; + struct nvkm_device *device = clk->base.subdev.device; + if (info->ssel) { + nvkm_mask(device, 0x137160 + (idx * 0x04), 0x40000000, 0x40000000); + nvkm_mask(device, 0x137160 + (idx * 0x04), 0x00000100, 0x00000100); + } +} + +static int +gk104_clk_prog(struct nvkm_clk *base) +{ + struct gk104_clk *clk = gk104_clk(base); + struct { + u32 mask; + void (*exec)(struct gk104_clk *, int); + } stage[] = { + { 0x007f, gk104_clk_prog_0 }, /* div programming */ + { 0x007f, gk104_clk_prog_1_0 }, /* select div mode */ + { 0xff80, gk104_clk_prog_1_1 }, + { 0x00ff, gk104_clk_prog_2 }, /* (maybe) program pll */ + { 0xff80, gk104_clk_prog_3 }, /* final divider */ + { 0x007f, gk104_clk_prog_4_0 }, /* (maybe) select pll mode */ + { 0xff80, gk104_clk_prog_4_1 }, + }; + int i, j; + + for (i = 0; i < ARRAY_SIZE(stage); i++) { + for (j = 0; j < ARRAY_SIZE(clk->eng); j++) { + if (!(stage[i].mask & (1 << j))) + continue; + if (!clk->eng[j].freq) + continue; + stage[i].exec(clk, j); + } + } + + return 0; +} + +static void +gk104_clk_tidy(struct nvkm_clk *base) +{ + struct gk104_clk *clk = gk104_clk(base); + memset(clk->eng, 0x00, sizeof(clk->eng)); +} + +static const struct nvkm_clk_func +gk104_clk = { + .read = gk104_clk_read, + .calc = gk104_clk_calc, + .prog = gk104_clk_prog, + .tidy = gk104_clk_tidy, + .domains = { + { nv_clk_src_crystal, 0xff }, + { nv_clk_src_href , 0xff }, + { nv_clk_src_gpc , 0x00, NVKM_CLK_DOM_FLAG_CORE | NVKM_CLK_DOM_FLAG_VPSTATE, "core", 2000 }, + { nv_clk_src_hubk07 , 0x01, NVKM_CLK_DOM_FLAG_CORE }, + { nv_clk_src_rop , 0x02, NVKM_CLK_DOM_FLAG_CORE }, + { nv_clk_src_mem , 0x03, 0, "memory", 500 }, + { nv_clk_src_hubk06 , 0x04, NVKM_CLK_DOM_FLAG_CORE }, + { nv_clk_src_hubk01 , 0x05 }, + { nv_clk_src_vdec , 0x06 }, + { nv_clk_src_pmu , 0x07 }, + { nv_clk_src_max } + } +}; + +int +gk104_clk_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_clk **pclk) +{ + struct gk104_clk *clk; + + if (!(clk = kzalloc(sizeof(*clk), GFP_KERNEL))) + return -ENOMEM; + *pclk = &clk->base; + + return nvkm_clk_ctor(&gk104_clk, device, type, inst, true, &clk->base); +} -- cgit v1.2.3