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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/gpu/drm/nouveau/nvkm/engine/falcon.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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().
...
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/falcon.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/falcon.c | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/falcon.c b/drivers/gpu/drm/nouveau/nvkm/engine/falcon.c new file mode 100644 index 000000000..d619b40a4 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/falcon.c @@ -0,0 +1,355 @@ +/* + * Copyright 2012 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. + */ +#include <engine/falcon.h> + +#include <core/gpuobj.h> +#include <subdev/mc.h> +#include <subdev/timer.h> +#include <engine/fifo.h> + +static int +nvkm_falcon_oclass_get(struct nvkm_oclass *oclass, int index) +{ + struct nvkm_falcon *falcon = nvkm_falcon(oclass->engine); + int c = 0; + + while (falcon->func->sclass[c].oclass) { + if (c++ == index) { + oclass->base = falcon->func->sclass[index]; + return index; + } + } + + return c; +} + +static int +nvkm_falcon_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent, + int align, struct nvkm_gpuobj **pgpuobj) +{ + return nvkm_gpuobj_new(object->engine->subdev.device, 256, + align, true, parent, pgpuobj); +} + +static const struct nvkm_object_func +nvkm_falcon_cclass = { + .bind = nvkm_falcon_cclass_bind, +}; + +static void +nvkm_falcon_intr(struct nvkm_engine *engine) +{ + struct nvkm_falcon *falcon = nvkm_falcon(engine); + struct nvkm_subdev *subdev = &falcon->engine.subdev; + struct nvkm_device *device = subdev->device; + const u32 base = falcon->addr; + u32 dest = nvkm_rd32(device, base + 0x01c); + u32 intr = nvkm_rd32(device, base + 0x008) & dest & ~(dest >> 16); + u32 inst = nvkm_rd32(device, base + 0x050) & 0x3fffffff; + struct nvkm_chan *chan; + unsigned long flags; + + chan = nvkm_chan_get_inst(engine, (u64)inst << 12, &flags); + + if (intr & 0x00000040) { + if (falcon->func->intr) { + falcon->func->intr(falcon, chan); + nvkm_wr32(device, base + 0x004, 0x00000040); + intr &= ~0x00000040; + } + } + + if (intr & 0x00000010) { + nvkm_debug(subdev, "ucode halted\n"); + nvkm_wr32(device, base + 0x004, 0x00000010); + intr &= ~0x00000010; + } + + if (intr) { + nvkm_error(subdev, "intr %08x\n", intr); + nvkm_wr32(device, base + 0x004, intr); + } + + nvkm_chan_put(&chan, flags); +} + +static int +nvkm_falcon_fini(struct nvkm_engine *engine, bool suspend) +{ + struct nvkm_falcon *falcon = nvkm_falcon(engine); + struct nvkm_device *device = falcon->engine.subdev.device; + const u32 base = falcon->addr; + + if (!suspend) { + nvkm_memory_unref(&falcon->core); + if (falcon->external) { + vfree(falcon->data.data); + vfree(falcon->code.data); + falcon->code.data = NULL; + } + } + + if (nvkm_mc_enabled(device, engine->subdev.type, engine->subdev.inst)) { + nvkm_mask(device, base + 0x048, 0x00000003, 0x00000000); + nvkm_wr32(device, base + 0x014, 0xffffffff); + } + return 0; +} + +static void * +vmemdup(const void *src, size_t len) +{ + void *p = vmalloc(len); + + if (p) + memcpy(p, src, len); + return p; +} + +static int +nvkm_falcon_oneinit(struct nvkm_engine *engine) +{ + struct nvkm_falcon *falcon = nvkm_falcon(engine); + struct nvkm_subdev *subdev = &falcon->engine.subdev; + struct nvkm_device *device = subdev->device; + const u32 base = falcon->addr; + u32 caps; + + /* determine falcon capabilities */ + if (device->chipset < 0xa3 || + device->chipset == 0xaa || device->chipset == 0xac) { + falcon->version = 0; + falcon->secret = (falcon->addr == 0x087000) ? 1 : 0; + } else { + caps = nvkm_rd32(device, base + 0x12c); + falcon->version = (caps & 0x0000000f); + falcon->secret = (caps & 0x00000030) >> 4; + } + + caps = nvkm_rd32(device, base + 0x108); + falcon->code.limit = (caps & 0x000001ff) << 8; + falcon->data.limit = (caps & 0x0003fe00) >> 1; + + nvkm_debug(subdev, "falcon version: %d\n", falcon->version); + nvkm_debug(subdev, "secret level: %d\n", falcon->secret); + nvkm_debug(subdev, "code limit: %d\n", falcon->code.limit); + nvkm_debug(subdev, "data limit: %d\n", falcon->data.limit); + return 0; +} + +static int +nvkm_falcon_init(struct nvkm_engine *engine) +{ + struct nvkm_falcon *falcon = nvkm_falcon(engine); + struct nvkm_subdev *subdev = &falcon->engine.subdev; + struct nvkm_device *device = subdev->device; + const struct firmware *fw; + char name[32] = "internal"; + const u32 base = falcon->addr; + int ret, i; + + /* wait for 'uc halted' to be signalled before continuing */ + if (falcon->secret && falcon->version < 4) { + if (!falcon->version) { + nvkm_msec(device, 2000, + if (nvkm_rd32(device, base + 0x008) & 0x00000010) + break; + ); + } else { + nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, base + 0x180) & 0x80000000)) + break; + ); + } + nvkm_wr32(device, base + 0x004, 0x00000010); + } + + /* disable all interrupts */ + nvkm_wr32(device, base + 0x014, 0xffffffff); + + /* no default ucode provided by the engine implementation, try and + * locate a "self-bootstrapping" firmware image for the engine + */ + if (!falcon->code.data) { + snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03x", + device->chipset, falcon->addr >> 12); + + ret = request_firmware(&fw, name, device->dev); + if (ret == 0) { + falcon->code.data = vmemdup(fw->data, fw->size); + falcon->code.size = fw->size; + falcon->data.data = NULL; + falcon->data.size = 0; + release_firmware(fw); + } + + falcon->external = true; + } + + /* next step is to try and load "static code/data segment" firmware + * images for the engine + */ + if (!falcon->code.data) { + snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xd", + device->chipset, falcon->addr >> 12); + + ret = request_firmware(&fw, name, device->dev); + if (ret) { + nvkm_error(subdev, "unable to load firmware data\n"); + return -ENODEV; + } + + falcon->data.data = vmemdup(fw->data, fw->size); + falcon->data.size = fw->size; + release_firmware(fw); + if (!falcon->data.data) + return -ENOMEM; + + snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xc", + device->chipset, falcon->addr >> 12); + + ret = request_firmware(&fw, name, device->dev); + if (ret) { + nvkm_error(subdev, "unable to load firmware code\n"); + return -ENODEV; + } + + falcon->code.data = vmemdup(fw->data, fw->size); + falcon->code.size = fw->size; + release_firmware(fw); + if (!falcon->code.data) + return -ENOMEM; + } + + nvkm_debug(subdev, "firmware: %s (%s)\n", name, falcon->data.data ? + "static code/data segments" : "self-bootstrapping"); + + /* ensure any "self-bootstrapping" firmware image is in vram */ + if (!falcon->data.data && !falcon->core) { + ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, + falcon->code.size, 256, false, + &falcon->core); + if (ret) { + nvkm_error(subdev, "core allocation failed, %d\n", ret); + return ret; + } + + nvkm_kmap(falcon->core); + for (i = 0; i < falcon->code.size; i += 4) + nvkm_wo32(falcon->core, i, falcon->code.data[i / 4]); + nvkm_done(falcon->core); + } + + /* upload firmware bootloader (or the full code segments) */ + if (falcon->core) { + u64 addr = nvkm_memory_addr(falcon->core); + if (device->card_type < NV_C0) + nvkm_wr32(device, base + 0x618, 0x04000000); + else + nvkm_wr32(device, base + 0x618, 0x00000114); + nvkm_wr32(device, base + 0x11c, 0); + nvkm_wr32(device, base + 0x110, addr >> 8); + nvkm_wr32(device, base + 0x114, 0); + nvkm_wr32(device, base + 0x118, 0x00006610); + } else { + if (falcon->code.size > falcon->code.limit || + falcon->data.size > falcon->data.limit) { + nvkm_error(subdev, "ucode exceeds falcon limit(s)\n"); + return -EINVAL; + } + + if (falcon->version < 3) { + nvkm_wr32(device, base + 0xff8, 0x00100000); + for (i = 0; i < falcon->code.size / 4; i++) + nvkm_wr32(device, base + 0xff4, falcon->code.data[i]); + } else { + nvkm_wr32(device, base + 0x180, 0x01000000); + for (i = 0; i < falcon->code.size / 4; i++) { + if ((i & 0x3f) == 0) + nvkm_wr32(device, base + 0x188, i >> 6); + nvkm_wr32(device, base + 0x184, falcon->code.data[i]); + } + } + } + + /* upload data segment (if necessary), zeroing the remainder */ + if (falcon->version < 3) { + nvkm_wr32(device, base + 0xff8, 0x00000000); + for (i = 0; !falcon->core && i < falcon->data.size / 4; i++) + nvkm_wr32(device, base + 0xff4, falcon->data.data[i]); + for (; i < falcon->data.limit; i += 4) + nvkm_wr32(device, base + 0xff4, 0x00000000); + } else { + nvkm_wr32(device, base + 0x1c0, 0x01000000); + for (i = 0; !falcon->core && i < falcon->data.size / 4; i++) + nvkm_wr32(device, base + 0x1c4, falcon->data.data[i]); + for (; i < falcon->data.limit / 4; i++) + nvkm_wr32(device, base + 0x1c4, 0x00000000); + } + + /* start it running */ + nvkm_wr32(device, base + 0x10c, 0x00000001); /* BLOCK_ON_FIFO */ + nvkm_wr32(device, base + 0x104, 0x00000000); /* ENTRY */ + nvkm_wr32(device, base + 0x100, 0x00000002); /* TRIGGER */ + nvkm_wr32(device, base + 0x048, 0x00000003); /* FIFO | CHSW */ + + if (falcon->func->init) + falcon->func->init(falcon); + return 0; +} + +static void * +nvkm_falcon_dtor(struct nvkm_engine *engine) +{ + return nvkm_falcon(engine); +} + +static const struct nvkm_engine_func +nvkm_falcon = { + .dtor = nvkm_falcon_dtor, + .oneinit = nvkm_falcon_oneinit, + .init = nvkm_falcon_init, + .fini = nvkm_falcon_fini, + .intr = nvkm_falcon_intr, + .fifo.sclass = nvkm_falcon_oclass_get, + .cclass = &nvkm_falcon_cclass, +}; + +int +nvkm_falcon_new_(const struct nvkm_falcon_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, bool enable, u32 addr, + struct nvkm_engine **pengine) +{ + struct nvkm_falcon *falcon; + + if (!(falcon = kzalloc(sizeof(*falcon), GFP_KERNEL))) + return -ENOMEM; + falcon->func = func; + falcon->addr = addr; + falcon->code.data = func->code.data; + falcon->code.size = func->code.size; + falcon->data.data = func->data.data; + falcon->data.size = func->data.size; + *pengine = &falcon->engine; + + return nvkm_engine_ctor(&nvkm_falcon, device, type, inst, enable, &falcon->engine); +} |