diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/mellanox/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/platform/mellanox/Makefile | 1 | ||||
| -rw-r--r-- | drivers/platform/mellanox/mlxbf-tmfifo-regs.h | 63 | ||||
| -rw-r--r-- | drivers/platform/mellanox/mlxbf-tmfifo.c | 1281 | ||||
| -rw-r--r-- | drivers/platform/x86/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/platform/x86/Makefile | 1 | ||||
| -rw-r--r-- | drivers/platform/x86/alienware-wmi.c | 19 | ||||
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 37 | ||||
| -rw-r--r-- | drivers/platform/x86/dell-laptop.c | 6 | ||||
| -rw-r--r-- | drivers/platform/x86/dell-rbtn.c | 2 | ||||
| -rw-r--r-- | drivers/platform/x86/ideapad-laptop.c | 321 | ||||
| -rw-r--r-- | drivers/platform/x86/intel_mrfld_pwrbtn.c | 107 | ||||
| -rw-r--r-- | drivers/platform/x86/intel_pmc_core.c | 172 | ||||
| -rw-r--r-- | drivers/platform/x86/intel_pmc_core.h | 7 | ||||
| -rw-r--r-- | drivers/platform/x86/intel_pmc_ipc.c | 46 | ||||
| -rw-r--r-- | drivers/platform/x86/intel_punit_ipc.c | 8 | ||||
| -rw-r--r-- | drivers/platform/x86/mlx-platform.c | 228 | ||||
| -rw-r--r-- | drivers/platform/x86/sony-laptop.c | 8 | ||||
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 146 | ||||
| -rw-r--r-- | drivers/platform/x86/touchscreen_dmi.c | 51 |
20 files changed, 2146 insertions, 381 deletions
diff --git a/drivers/platform/mellanox/Kconfig b/drivers/platform/mellanox/Kconfig index cd8a90846063..530fe7e31397 100644 --- a/drivers/platform/mellanox/Kconfig +++ b/drivers/platform/mellanox/Kconfig @@ -5,7 +5,7 @@ menuconfig MELLANOX_PLATFORM bool "Platform support for Mellanox hardware" - depends on X86 || ARM || COMPILE_TEST + depends on X86 || ARM || ARM64 || COMPILE_TEST ---help--- Say Y here to get to see options for platform support for Mellanox systems. This option alone does not add any kernel code. @@ -34,4 +34,14 @@ config MLXREG_IO to system resets operation, system reset causes monitoring and some kinds of mux selection. +config MLXBF_TMFIFO + tristate "Mellanox BlueField SoC TmFifo platform driver" + depends on ARM64 + depends on ACPI + depends on VIRTIO_CONSOLE && VIRTIO_NET + help + Say y here to enable TmFifo support. The TmFifo driver provides + platform driver support for the TmFifo which supports console + and networking based on the virtio framework. + endif # MELLANOX_PLATFORM diff --git a/drivers/platform/mellanox/Makefile b/drivers/platform/mellanox/Makefile index 57074d9c722c..a229bda18fd9 100644 --- a/drivers/platform/mellanox/Makefile +++ b/drivers/platform/mellanox/Makefile @@ -3,5 +3,6 @@ # Makefile for linux/drivers/platform/mellanox # Mellanox Platform-Specific Drivers # +obj-$(CONFIG_MLXBF_TMFIFO) += mlxbf-tmfifo.o obj-$(CONFIG_MLXREG_HOTPLUG) += mlxreg-hotplug.o obj-$(CONFIG_MLXREG_IO) += mlxreg-io.o diff --git a/drivers/platform/mellanox/mlxbf-tmfifo-regs.h b/drivers/platform/mellanox/mlxbf-tmfifo-regs.h new file mode 100644 index 000000000000..e4f0d2eda714 --- /dev/null +++ b/drivers/platform/mellanox/mlxbf-tmfifo-regs.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019, Mellanox Technologies. All rights reserved. + */ + +#ifndef __MLXBF_TMFIFO_REGS_H__ +#define __MLXBF_TMFIFO_REGS_H__ + +#include <linux/types.h> +#include <linux/bits.h> + +#define MLXBF_TMFIFO_TX_DATA 0x00 +#define MLXBF_TMFIFO_TX_STS 0x08 +#define MLXBF_TMFIFO_TX_STS__LENGTH 0x0001 +#define MLXBF_TMFIFO_TX_STS__COUNT_SHIFT 0 +#define MLXBF_TMFIFO_TX_STS__COUNT_WIDTH 9 +#define MLXBF_TMFIFO_TX_STS__COUNT_RESET_VAL 0 +#define MLXBF_TMFIFO_TX_STS__COUNT_RMASK GENMASK_ULL(8, 0) +#define MLXBF_TMFIFO_TX_STS__COUNT_MASK GENMASK_ULL(8, 0) +#define MLXBF_TMFIFO_TX_CTL 0x10 +#define MLXBF_TMFIFO_TX_CTL__LENGTH 0x0001 +#define MLXBF_TMFIFO_TX_CTL__LWM_SHIFT 0 +#define MLXBF_TMFIFO_TX_CTL__LWM_WIDTH 8 +#define MLXBF_TMFIFO_TX_CTL__LWM_RESET_VAL 128 +#define MLXBF_TMFIFO_TX_CTL__LWM_RMASK GENMASK_ULL(7, 0) +#define MLXBF_TMFIFO_TX_CTL__LWM_MASK GENMASK_ULL(7, 0) +#define MLXBF_TMFIFO_TX_CTL__HWM_SHIFT 8 +#define MLXBF_TMFIFO_TX_CTL__HWM_WIDTH 8 +#define MLXBF_TMFIFO_TX_CTL__HWM_RESET_VAL 128 +#define MLXBF_TMFIFO_TX_CTL__HWM_RMASK GENMASK_ULL(7, 0) +#define MLXBF_TMFIFO_TX_CTL__HWM_MASK GENMASK_ULL(15, 8) +#define MLXBF_TMFIFO_TX_CTL__MAX_ENTRIES_SHIFT 32 +#define MLXBF_TMFIFO_TX_CTL__MAX_ENTRIES_WIDTH 9 +#define MLXBF_TMFIFO_TX_CTL__MAX_ENTRIES_RESET_VAL 256 +#define MLXBF_TMFIFO_TX_CTL__MAX_ENTRIES_RMASK GENMASK_ULL(8, 0) +#define MLXBF_TMFIFO_TX_CTL__MAX_ENTRIES_MASK GENMASK_ULL(40, 32) +#define MLXBF_TMFIFO_RX_DATA 0x00 +#define MLXBF_TMFIFO_RX_STS 0x08 +#define MLXBF_TMFIFO_RX_STS__LENGTH 0x0001 +#define MLXBF_TMFIFO_RX_STS__COUNT_SHIFT 0 +#define MLXBF_TMFIFO_RX_STS__COUNT_WIDTH 9 +#define MLXBF_TMFIFO_RX_STS__COUNT_RESET_VAL 0 +#define MLXBF_TMFIFO_RX_STS__COUNT_RMASK GENMASK_ULL(8, 0) +#define MLXBF_TMFIFO_RX_STS__COUNT_MASK GENMASK_ULL(8, 0) +#define MLXBF_TMFIFO_RX_CTL 0x10 +#define MLXBF_TMFIFO_RX_CTL__LENGTH 0x0001 +#define MLXBF_TMFIFO_RX_CTL__LWM_SHIFT 0 +#define MLXBF_TMFIFO_RX_CTL__LWM_WIDTH 8 +#define MLXBF_TMFIFO_RX_CTL__LWM_RESET_VAL 128 +#define MLXBF_TMFIFO_RX_CTL__LWM_RMASK GENMASK_ULL(7, 0) +#define MLXBF_TMFIFO_RX_CTL__LWM_MASK GENMASK_ULL(7, 0) +#define MLXBF_TMFIFO_RX_CTL__HWM_SHIFT 8 +#define MLXBF_TMFIFO_RX_CTL__HWM_WIDTH 8 +#define MLXBF_TMFIFO_RX_CTL__HWM_RESET_VAL 128 +#define MLXBF_TMFIFO_RX_CTL__HWM_RMASK GENMASK_ULL(7, 0) +#define MLXBF_TMFIFO_RX_CTL__HWM_MASK GENMASK_ULL(15, 8) +#define MLXBF_TMFIFO_RX_CTL__MAX_ENTRIES_SHIFT 32 +#define MLXBF_TMFIFO_RX_CTL__MAX_ENTRIES_WIDTH 9 +#define MLXBF_TMFIFO_RX_CTL__MAX_ENTRIES_RESET_VAL 256 +#define MLXBF_TMFIFO_RX_CTL__MAX_ENTRIES_RMASK GENMASK_ULL(8, 0) +#define MLXBF_TMFIFO_RX_CTL__MAX_ENTRIES_MASK GENMASK_ULL(40, 32) + +#endif /* !defined(__MLXBF_TMFIFO_REGS_H__) */ diff --git a/drivers/platform/mellanox/mlxbf-tmfifo.c b/drivers/platform/mellanox/mlxbf-tmfifo.c new file mode 100644 index 000000000000..9a5c9fd2dbc6 --- /dev/null +++ b/drivers/platform/mellanox/mlxbf-tmfifo.c @@ -0,0 +1,1281 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Mellanox BlueField SoC TmFifo driver + * + * Copyright (C) 2019 Mellanox Technologies + */ + +#include <linux/acpi.h> +#include <linux/bitfield.h> +#include <linux/circ_buf.h> +#include <linux/efi.h> +#include <linux/irq.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/types.h> + +#include <linux/virtio_config.h> +#include <linux/virtio_console.h> +#include <linux/virtio_ids.h> +#include <linux/virtio_net.h> +#include <linux/virtio_ring.h> + +#include "mlxbf-tmfifo-regs.h" + +/* Vring size. */ +#define MLXBF_TMFIFO_VRING_SIZE SZ_1K + +/* Console Tx buffer size. */ +#define MLXBF_TMFIFO_CON_TX_BUF_SIZE SZ_32K + +/* Console Tx buffer reserved space. */ +#define MLXBF_TMFIFO_CON_TX_BUF_RSV_SIZE 8 + +/* House-keeping timer interval. */ +#define MLXBF_TMFIFO_TIMER_INTERVAL (HZ / 10) + +/* Virtual devices sharing the TM FIFO. */ +#define MLXBF_TMFIFO_VDEV_MAX (VIRTIO_ID_CONSOLE + 1) + +/* + * Reserve 1/16 of TmFifo space, so console messages are not starved by + * the networking traffic. + */ +#define MLXBF_TMFIFO_RESERVE_RATIO 16 + +/* Message with data needs at least two words (for header & data). */ +#define MLXBF_TMFIFO_DATA_MIN_WORDS 2 + +struct mlxbf_tmfifo; + +/** + * mlxbf_tmfifo_vring - Structure of the TmFifo virtual ring + * @va: virtual address of the ring + * @dma: dma address of the ring + * @vq: pointer to the virtio virtqueue + * @desc: current descriptor of the pending packet + * @desc_head: head descriptor of the pending packet + * @cur_len: processed length of the current descriptor + * @rem_len: remaining length of the pending packet + * @pkt_len: total length of the pending packet + * @next_avail: next avail descriptor id + * @num: vring size (number of descriptors) + * @align: vring alignment size + * @index: vring index + * @vdev_id: vring virtio id (VIRTIO_ID_xxx) + * @fifo: pointer to the tmfifo structure + */ +struct mlxbf_tmfifo_vring { + void *va; + dma_addr_t dma; + struct virtqueue *vq; + struct vring_desc *desc; + struct vring_desc *desc_head; + int cur_len; + int rem_len; + u32 pkt_len; + u16 next_avail; + int num; + int align; + int index; + int vdev_id; + struct mlxbf_tmfifo *fifo; +}; + +/* Interrupt types. */ +enum { + MLXBF_TM_RX_LWM_IRQ, + MLXBF_TM_RX_HWM_IRQ, + MLXBF_TM_TX_LWM_IRQ, + MLXBF_TM_TX_HWM_IRQ, + MLXBF_TM_MAX_IRQ +}; + +/* Ring types (Rx & Tx). */ +enum { + MLXBF_TMFIFO_VRING_RX, + MLXBF_TMFIFO_VRING_TX, + MLXBF_TMFIFO_VRING_MAX +}; + +/** + * mlxbf_tmfifo_vdev - Structure of the TmFifo virtual device + * @vdev: virtio device, in which the vdev.id.device field has the + * VIRTIO_ID_xxx id to distinguish the virtual device. + * @status: status of the device + * @features: supported features of the device + * @vrings: array of tmfifo vrings of this device + * @config.cons: virtual console config - + * select if vdev.id.device is VIRTIO_ID_CONSOLE + * @config.net: virtual network config - + * select if vdev.id.device is VIRTIO_ID_NET + * @tx_buf: tx buffer used to buffer data before writing into the FIFO + */ +struct mlxbf_tmfifo_vdev { + struct virtio_device vdev; + u8 status; + u64 features; + struct mlxbf_tmfifo_vring vrings[MLXBF_TMFIFO_VRING_MAX]; + union { + struct virtio_console_config cons; + struct virtio_net_config net; + } config; + struct circ_buf tx_buf; +}; + +/** + * mlxbf_tmfifo_irq_info - Structure of the interrupt information + * @fifo: pointer to the tmfifo structure + * @irq: interrupt number + * @index: index into the interrupt array + */ +struct mlxbf_tmfifo_irq_info { + struct mlxbf_tmfifo *fifo; + int irq; + int index; +}; + +/** + * mlxbf_tmfifo - Structure of the TmFifo + * @vdev: array of the virtual devices running over the TmFifo + * @lock: lock to protect the TmFifo access + * @rx_base: mapped register base address for the Rx FIFO + * @tx_base: mapped register base address for the Tx FIFO + * @rx_fifo_size: number of entries of the Rx FIFO + * @tx_fifo_size: number of entries of the Tx FIFO + * @pend_events: pending bits for deferred events + * @irq_info: interrupt information + * @work: work struct for deferred process + * @timer: background timer + * @vring: Tx/Rx ring + * @spin_lock: spin lock + * @is_ready: ready flag + */ +struct mlxbf_tmfifo { + struct mlxbf_tmfifo_vdev *vdev[MLXBF_TMFIFO_VDEV_MAX]; + struct mutex lock; /* TmFifo lock */ + void __iomem *rx_base; + void __iomem *tx_base; + int rx_fifo_size; + int tx_fifo_size; + unsigned long pend_events; + struct mlxbf_tmfifo_irq_info irq_info[MLXBF_TM_MAX_IRQ]; + struct work_struct work; + struct timer_list timer; + struct mlxbf_tmfifo_vring *vring[2]; + spinlock_t spin_lock; /* spin lock */ + bool is_ready; +}; + +/** + * mlxbf_tmfifo_msg_hdr - Structure of the TmFifo message header + * @type: message type + * @len: payload length in network byte order. Messages sent into the FIFO + * will be read by the other side as data stream in the same byte order. + * The length needs to be encoded into network order so both sides + * could understand it. + */ +struct mlxbf_tmfifo_msg_hdr { + u8 type; + __be16 len; + u8 unused[5]; +} __packed __aligned(sizeof(u64)); + +/* + * Default MAC. + * This MAC address will be read from EFI persistent variable if configured. + * It can also be reconfigured with standard Linux tools. + */ +static u8 mlxbf_tmfifo_net_default_mac[ETH_ALEN] = { + 0x00, 0x1A, 0xCA, 0xFF, 0xFF, 0x01 +}; + +/* EFI variable name of the MAC address. */ +static efi_char16_t mlxbf_tmfifo_efi_name[] = L"RshimMacAddr"; + +/* Maximum L2 header length. */ +#define MLXBF_TMFIFO_NET_L2_OVERHEAD 36 + +/* Supported virtio-net features. */ +#define MLXBF_TMFIFO_NET_FEATURES \ + (BIT_ULL(VIRTIO_NET_F_MTU) | BIT_ULL(VIRTIO_NET_F_STATUS) | \ + BIT_ULL(VIRTIO_NET_F_MAC)) + +#define mlxbf_vdev_to_tmfifo(d) container_of(d, struct mlxbf_tmfifo_vdev, vdev) + +/* Free vrings of the FIFO device. */ +static void mlxbf_tmfifo_free_vrings(struct mlxbf_tmfifo *fifo, + struct mlxbf_tmfifo_vdev *tm_vdev) +{ + struct mlxbf_tmfifo_vring *vring; + int i, size; + + for (i = 0; i < ARRAY_SIZE(tm_vdev->vrings); i++) { + vring = &tm_vdev->vrings[i]; + if (vring->va) { + size = vring_size(vring->num, vring->align); + dma_free_coherent(tm_vdev->vdev.dev.parent, size, + vring->va, vring->dma); + vring->va = NULL; + if (vring->vq) { + vring_del_virtqueue(vring->vq); + vring->vq = NULL; + } + } + } +} + +/* Allocate vrings for the FIFO. */ +static int mlxbf_tmfifo_alloc_vrings(struct mlxbf_tmfifo *fifo, + struct mlxbf_tmfifo_vdev *tm_vdev) +{ + struct mlxbf_tmfifo_vring *vring; + struct device *dev; + dma_addr_t dma; + int i, size; + void *va; + + for (i = 0; i < ARRAY_SIZE(tm_vdev->vrings); i++) { + vring = &tm_vdev->vrings[i]; + vring->fifo = fifo; + vring->num = MLXBF_TMFIFO_VRING_SIZE; + vring->align = SMP_CACHE_BYTES; + vring->index = i; + vring->vdev_id = tm_vdev->vdev.id.device; + dev = &tm_vdev->vdev.dev; + + size = vring_size(vring->num, vring->align); + va = dma_alloc_coherent(dev->parent, size, &dma, GFP_KERNEL); + if (!va) { + mlxbf_tmfifo_free_vrings(fifo, tm_vdev); + dev_err(dev->parent, "dma_alloc_coherent failed\n"); + return -ENOMEM; + } + + vring->va = va; + vring->dma = dma; + } + + return 0; +} + +/* Disable interrupts of the FIFO device. */ +static void mlxbf_tmfifo_disable_irqs(struct mlxbf_tmfifo *fifo) +{ + int i, irq; + + for (i = 0; i < MLXBF_TM_MAX_IRQ; i++) { + irq = fifo->irq_info[i].irq; + fifo->irq_info[i].irq = 0; + disable_irq(irq); + } +} + +/* Interrupt handler. */ +static irqreturn_t mlxbf_tmfifo_irq_handler(int irq, void *arg) +{ + struct mlxbf_tmfifo_irq_info *irq_info = arg; + + if (!test_and_set_bit(irq_info->index, &irq_info->fifo->pend_events)) + schedule_work(&irq_info->fifo->work); + + return IRQ_HANDLED; +} + +/* Get the next packet descriptor from the vring. */ +static struct vring_desc * +mlxbf_tmfifo_get_next_desc(struct mlxbf_tmfifo_vring *vring) +{ + const struct vring *vr = virtqueue_get_vring(vring->vq); + struct virtio_device *vdev = vring->vq->vdev; + unsigned int idx, head; + + if (vring->next_avail == virtio16_to_cpu(vdev, vr->avail->idx)) + return NULL; + + idx = vring->next_avail % vr->num; + head = virtio16_to_cpu(vdev, vr->avail->ring[idx]); + if (WARN_ON(head >= vr->num)) + return NULL; + + vring->next_avail++; + + return &vr->desc[head]; +} + +/* Release virtio descriptor. */ +static void mlxbf_tmfifo_release_desc(struct mlxbf_tmfifo_vring *vring, + struct vring_desc *desc, u32 len) +{ + const struct vring *vr = virtqueue_get_vring(vring->vq); + struct virtio_device *vdev = vring->vq->vdev; + u16 idx, vr_idx; + + vr_idx = virtio16_to_cpu(vdev, vr->used->idx); + idx = vr_idx % vr->num; + vr->used->ring[idx].id = cpu_to_virtio32(vdev, desc - vr->desc); + vr->used->ring[idx].len = cpu_to_virtio32(vdev, len); + + /* + * Virtio could poll and check the 'idx' to decide whether the desc is + * done or not. Add a memory barrier here to make sure the update above + * completes before updating the idx. + */ + mb(); + vr->used->idx = cpu_to_virtio16(vdev, vr_idx + 1); +} + +/* Get the total length of the descriptor chain. */ +static u32 mlxbf_tmfifo_get_pkt_len(struct mlxbf_tmfifo_vring *vring, + struct vring_desc *desc) +{ + const struct vring *vr = virtqueue_get_vring(vring->vq); + struct virtio_device *vdev = vring->vq->vdev; + u32 len = 0, idx; + + while (desc) { + len += virtio32_to_cpu(vdev, desc->len); + if (!(virtio16_to_cpu(vdev, desc->flags) & VRING_DESC_F_NEXT)) + break; + idx = virtio16_to_cpu(vdev, desc->next); + desc = &vr->desc[idx]; + } + + return len; +} + +static void mlxbf_tmfifo_release_pending_pkt(struct mlxbf_tmfifo_vring *vring) +{ + struct vring_desc *desc_head; + u32 len = 0; + + if (vring->desc_head) { + desc_head = vring->desc_head; + len = vring->pkt_len; + } else { + desc_head = mlxbf_tmfifo_get_next_desc(vring); + len = mlxbf_tmfifo_get_pkt_len(vring, desc_head); + } + + if (desc_head) + mlxbf_tmfifo_release_desc(vring, desc_head, len); + + vring->pkt_len = 0; + vring->desc = NULL; + vring->desc_head = NULL; +} + +static void mlxbf_tmfifo_init_net_desc(struct mlxbf_tmfifo_vring *vring, + struct vring_desc *desc, bool is_rx) +{ + struct virtio_device *vdev = vring->vq->vdev; + struct virtio_net_hdr *net_hdr; + + net_hdr = phys_to_virt(virtio64_to_cpu(vdev, desc->addr)); + memset(net_hdr, 0, sizeof(*net_hdr)); +} + +/* Get and initialize the next packet. */ +static struct vring_desc * +mlxbf_tmfifo_get_next_pkt(struct mlxbf_tmfifo_vring *vring, bool is_rx) +{ + struct vring_desc *desc; + + desc = mlxbf_tmfifo_get_next_desc(vring); + if (desc && is_rx && vring->vdev_id == VIRTIO_ID_NET) + mlxbf_tmfifo_init_net_desc(vring, desc, is_rx); + + vring->desc_head = desc; + vring->desc = desc; + + return desc; +} + +/* House-keeping timer. */ +static void mlxbf_tmfifo_timer(struct timer_list *t) +{ + struct mlxbf_tmfifo *fifo = container_of(t, struct mlxbf_tmfifo, timer); + int rx, tx; + + rx = !test_and_set_bit(MLXBF_TM_RX_HWM_IRQ, &fifo->pend_events); + tx = !test_and_set_bit(MLXBF_TM_TX_LWM_IRQ, &fifo->pend_events); + + if (rx || tx) + schedule_work(&fifo->work); + + mod_timer(&fifo->timer, jiffies + MLXBF_TMFIFO_TIMER_INTERVAL); +} + +/* Copy one console packet into the output buffer. */ +static void mlxbf_tmfifo_console_output_one(struct mlxbf_tmfifo_vdev *cons, + struct mlxbf_tmfifo_vring *vring, + struct vring_desc *desc) +{ + const struct vring *vr = virtqueue_get_vring(vring->vq); + struct virtio_device *vdev = &cons->vdev; + u32 len, idx, seg; + void *addr; + + while (desc) { + addr = phys_to_virt(virtio64_to_cpu(vdev, desc->addr)); + len = virtio32_to_cpu(vdev, desc->len); + + seg = CIRC_SPACE_TO_END(cons->tx_buf.head, cons->tx_buf.tail, + MLXBF_TMFIFO_CON_TX_BUF_SIZE); + if (len <= seg) { + memcpy(cons->tx_buf.buf + cons->tx_buf.head, addr, len); + } else { + memcpy(cons->tx_buf.buf + cons->tx_buf.head, addr, seg); + addr += seg; + memcpy(cons->tx_buf.buf, addr, len - seg); + } + cons->tx_buf.head = (cons->tx_buf.head + len) % + MLXBF_TMFIFO_CON_TX_BUF_SIZE; + + if (!(virtio16_to_cpu(vdev, desc->flags) & VRING_DESC_F_NEXT)) + break; + idx = virtio16_to_cpu(vdev, desc->next); + desc = &vr->desc[idx]; + } +} + +/* Copy console data into the output buffer. */ +static void mlxbf_tmfifo_console_output(struct mlxbf_tmfifo_vdev *cons, + struct mlxbf_tmfifo_vring *vring) +{ + struct vring_desc *desc; + u32 len, avail; + + desc = mlxbf_tmfifo_get_next_desc(vring); + while (desc) { + /* Release the packet if not enough space. */ + len = mlxbf_tmfifo_get_pkt_len(vring, desc); + avail = CIRC_SPACE(cons->tx_buf.head, cons->tx_buf.tail, + MLXBF_TMFIFO_CON_TX_BUF_SIZE); + if (len + MLXBF_TMFIFO_CON_TX_BUF_RSV_SIZE > avail) { + mlxbf_tmfifo_release_desc(vring, desc, len); + break; + } + + mlxbf_tmfifo_console_output_one(cons, vring, desc); + mlxbf_tmfifo_release_desc(vring, desc, len); + desc = mlxbf_tmfifo_get_next_desc(vring); + } +} + +/* Get the number of available words in Rx FIFO for receiving. */ +static int mlxbf_tmfifo_get_rx_avail(struct mlxbf_tmfifo *fifo) +{ + u64 sts; + + sts = readq(fifo->rx_base + MLXBF_TMFIFO_RX_STS); + return FIELD_GET(MLXBF_TMFIFO_RX_STS__COUNT_MASK, sts); +} + +/* Get the number of available words in the TmFifo for sending. */ +static int mlxbf_tmfifo_get_tx_avail(struct mlxbf_tmfifo *fifo, int vdev_id) +{ + int tx_reserve; + u32 count; + u64 sts; + + /* Reserve some room in FIFO for console messages. */ + if (vdev_id == VIRTIO_ID_NET) + tx_reserve = fifo->tx_fifo_size / MLXBF_TMFIFO_RESERVE_RATIO; + else + tx_reserve = 1; + + sts = readq(fifo->tx_base + MLXBF_TMFIFO_TX_STS); + count = FIELD_GET(MLXBF_TMFIFO_TX_STS__COUNT_MASK, sts); + return fifo->tx_fifo_size - tx_reserve - count; +} + +/* Console Tx (move data from the output buffer into the TmFifo). */ +static void mlxbf_tmfifo_console_tx(struct mlxbf_tmfifo *fifo, int avail) +{ + struct mlxbf_tmfifo_msg_hdr hdr; + struct mlxbf_tmfifo_vdev *cons; + unsigned long flags; + int size, seg; + void *addr; + u64 data; + + /* Return if not enough space available. */ + if (avail < MLXBF_TMFIFO_DATA_MIN_WORDS) + return; + + cons = fifo->vdev[VIRTIO_ID_CONSOLE]; + if (!cons || !cons->tx_buf.buf) + return; + + /* Return if no data to send. */ + size = CIRC_CNT(cons->tx_buf.head, cons->tx_buf.tail, + MLXBF_TMFIFO_CON_TX_BUF_SIZE); + if (size == 0) + return; + + /* Adjust the size to available space. */ + if (size + sizeof(hdr) > avail * sizeof(u64)) + size = avail * sizeof(u64) - sizeof(hdr); + + /* Write header. */ + hdr.type = VIRTIO_ID_CONSOLE; + hdr.len = htons(size); + writeq(*(u64 *)&hdr, fifo->tx_base + MLXBF_TMFIFO_TX_DATA); + + /* Use spin-lock to protect the 'cons->tx_buf'. */ + spin_lock_irqsave(&fifo->spin_lock, flags); + + while (size > 0) { + addr = cons->tx_buf.buf + cons->tx_buf.tail; + + seg = CIRC_CNT_TO_END(cons->tx_buf.head, cons->tx_buf.tail, + MLXBF_TMFIFO_CON_TX_BUF_SIZE); + if (seg >= sizeof(u64)) { + memcpy(&data, addr, sizeof(u64)); + } else { + memcpy(&data, addr, seg); + memcpy((u8 *)&data + seg, cons->tx_buf.buf, + sizeof(u64) - seg); + } + writeq(data, fifo->tx_base + MLXBF_TMFIFO_TX_DATA); + + if (size >= sizeof(u64)) { + cons->tx_buf.tail = (cons->tx_buf.tail + sizeof(u64)) % + MLXBF_TMFIFO_CON_TX_BUF_SIZE; + size -= sizeof(u64); + } else { + cons->tx_buf.tail = (cons->tx_buf.tail + size) % + MLXBF_TMFIFO_CON_TX_BUF_SIZE; + size = 0; + } + } + + spin_unlock_irqrestore(&fifo->spin_lock, flags); +} + +/* Rx/Tx one word in the descriptor buffer. */ +static void mlxbf_tmfifo_rxtx_word(struct mlxbf_tmfifo_vring *vring, + struct vring_desc *desc, + bool is_rx, int len) +{ + struct virtio_device *vdev = vring->vq->vdev; + struct mlxbf_tmfifo *fifo = vring->fifo; + void *addr; + u64 data; + + /* Get the buffer address of this desc. */ + addr = phys_to_virt(virtio64_to_cpu(vdev, desc->addr)); + + /* Read a word from FIFO for Rx. */ + if (is_rx) + data = readq(fifo->rx_base + MLXBF_TMFIFO_RX_DATA); + + if (vring->cur_len + sizeof(u64) <= len) { + /* The whole word. */ + if (is_rx) + memcpy(addr + vring->cur_len, &data, sizeof(u64)); + else + memcpy(&data, addr + vring->cur_len, sizeof(u64)); + vring->cur_len += sizeof(u64); + } else { + /* Leftover bytes. */ + if (is_rx) + memcpy(addr + vring->cur_len, &data, + len - vring->cur_len); + else + memcpy(&data, addr + vring->cur_len, + len - vring->cur_len); + vring->cur_len = len; + } + + /* Write the word into FIFO for Tx. */ + if (!is_rx) + writeq(data, fifo->tx_base + MLXBF_TMFIFO_TX_DATA); +} + +/* + * Rx/Tx packet header. + * + * In Rx case, the packet might be found to belong to a different vring since + * the TmFifo is shared by different services. In such case, the 'vring_change' + * flag is set. + */ +static void mlxbf_tmfifo_rxtx_header(struct mlxbf_tmfifo_vring *vring, + struct vring_desc *desc, + bool is_rx, bool *vring_change) +{ + struct mlxbf_tmfifo *fifo = vring->fifo; + struct virtio_net_config *config; + struct mlxbf_tmfifo_msg_hdr hdr; + int vdev_id, hdr_len; + + /* Read/Write packet header. */ + if (is_rx) { + /* Drain one word from the FIFO. */ + *(u64 *)&hdr = readq(fifo->rx_base + MLXBF_TMFIFO_RX_DATA); + + /* Skip the length 0 packets (keepalive). */ + if (hdr.len == 0) + return; + + /* Check packet type. */ + if (hdr.type == VIRTIO_ID_NET) { + vdev_id = VIRTIO_ID_NET; + hdr_len = sizeof(struct virtio_net_hdr); + config = &fifo->vdev[vdev_id]->config.net; + if (ntohs(hdr.len) > config->mtu + + MLXBF_TMFIFO_NET_L2_OVERHEAD) + return; + } else { + vdev_id = VIRTIO_ID_CONSOLE; + hdr_len = 0; + } + + /* + * Check whether the new packet still belongs to this vring. + * If not, update the pkt_len of the new vring. + */ + if (vdev_id != vring->vdev_id) { + struct mlxbf_tmfifo_vdev *tm_dev2 = fifo->vdev[vdev_id]; + + if (!tm_dev2) + return; + vring->desc = desc; + vring = &tm_dev2->vrings[MLXBF_TMFIFO_VRING_RX]; + *vring_change = true; + } + vring->pkt_len = ntohs(hdr.len) + hdr_len; + } else { + /* Network virtio has an extra header. */ + hdr_len = (vring->vdev_id == VIRTIO_ID_NET) ? + sizeof(struct virtio_net_hdr) : 0; + vring->pkt_len = mlxbf_tmfifo_get_pkt_len(vring, desc); + hdr.type = (vring->vdev_id == VIRTIO_ID_NET) ? + VIRTIO_ID_NET : VIRTIO_ID_CONSOLE; + hdr.len = htons(vring->pkt_len - hdr_len); + writeq(*(u64 *)&hdr, fifo->tx_base + MLXBF_TMFIFO_TX_DATA); + } + + vring->cur_len = hdr_len; + vring->rem_len = vring->pkt_len; + fifo->vring[is_rx] = vring; +} + +/* + * Rx/Tx one descriptor. + * + * Return true to indicate more data available. + */ +static bool mlxbf_tmfifo_rxtx_one_desc(struct mlxbf_tmfifo_vring *vring, + bool is_rx, int *avail) +{ + const struct vring *vr = virtqueue_get_vring(vring->vq); + struct mlxbf_tmfifo *fifo = vring->fifo; + struct virtio_device *vdev; + bool vring_change = false; + struct vring_desc *desc; + unsigned long flags; + u32 len, idx; + + vdev = &fifo->vdev[vring->vdev_id]->vdev; + + /* Get the descriptor of the next packet. */ + if (!vring->desc) { + desc = mlxbf_tmfifo_get_next_pkt(vring, is_rx); + if (!desc) + return false; + } else { + desc = vring->desc; + } + + /* Beginning of a packet. Start to Rx/Tx packet header. */ + if (vring->pkt_len == 0) { + mlxbf_tmfifo_rxtx_header(vring, desc, is_rx, &vring_change); + (*avail)--; + + /* Return if new packet is for another ring. */ + if (vring_change) + return false; + goto mlxbf_tmfifo_desc_done; + } + + /* Get the length of this desc. */ + len = virtio32_to_cpu(vdev, desc->len); + if (len > vring->rem_len) + len = vring->rem_len; + + /* Rx/Tx one word (8 bytes) if not done. */ + if (vring->cur_len < len) { + mlxbf_tmfifo_rxtx_word(vring, desc, is_rx, len); + (*avail)--; + } + + /* Check again whether it's done. */ + if (vring->cur_len == len) { + vring->cur_len = 0; + vring->rem_len -= len; + + /* Get the next desc on the chain. */ + if (vring->rem_len > 0 && + (virtio16_to_cpu(vdev, desc->flags) & VRING_DESC_F_NEXT)) { + idx = virtio16_to_cpu(vdev, desc->next); + desc = &vr->desc[idx]; + goto mlxbf_tmfifo_desc_done; + } + + /* Done and release the pending packet. */ + mlxbf_tmfifo_release_pending_pkt(vring); + desc = NULL; + fifo->vring[is_rx] = NULL; + + /* Notify upper layer that packet is done. */ + spin_lock_irqsave(&fifo->spin_lock, flags); + vring_interrupt(0, vring->vq); + spin_unlock_irqrestore(&fifo->spin_lock, flags); + } + +mlxbf_tmfifo_desc_done: + /* Save the current desc. */ + vring->desc = desc; + + return true; +} + +/* Rx & Tx processing of a queue. */ +static void mlxbf_tmfifo_rxtx(struct mlxbf_tmfifo_vring *vring, bool is_rx) +{ + int avail = 0, devid = vring->vdev_id; + struct mlxbf_tmfifo *fifo; + bool more; + + fifo = vring->fifo; + + /* Return if vdev is not ready. */ + if (!fifo->vdev[devid]) + return; + + /* Return if another vring is running. */ + if (fifo->vring[is_rx] && fifo->vring[is_rx] != vring) + return; + + /* Only handle console and network for now. */ + if (WARN_ON(devid != VIRTIO_ID_NET && devid != VIRTIO_ID_CONSOLE)) + return; + + do { + /* Get available FIFO space. */ + if (avail == 0) { + if (is_rx) + avail = mlxbf_tmfifo_get_rx_avail(fifo); + else + avail = mlxbf_tmfifo_get_tx_avail(fifo, devid); + if (avail <= 0) + break; + } + + /* Console output always comes from the Tx buffer. */ + if (!is_rx && devid == VIRTIO_ID_CONSOLE) { + mlxbf_tmfifo_console_tx(fifo, avail); + break; + } + + /* Handle one descriptor. */ + more = mlxbf_tmfifo_rxtx_one_desc(vring, is_rx, &avail); + } while (more); +} + +/* Handle Rx or Tx queues. */ +static void mlxbf_tmfifo_work_rxtx(struct mlxbf_tmfifo *fifo, int queue_id, + int irq_id, bool is_rx) +{ + struct mlxbf_tmfifo_vdev *tm_vdev; + struct mlxbf_tmfifo_vring *vring; + int i; + + if (!test_and_clear_bit(irq_id, &fifo->pend_events) || + !fifo->irq_info[irq_id].irq) + return; + + for (i = 0; i < MLXBF_TMFIFO_VDEV_MAX; i++) { + tm_vdev = fifo->vdev[i]; + if (tm_vdev) { + vring = &tm_vdev->vrings[queue_id]; + if (vring->vq) + mlxbf_tmfifo_rxtx(vring, is_rx); + } + } +} + +/* Work handler for Rx and Tx case. */ +static void mlxbf_tmfifo_work_handler(struct work_struct *work) +{ + struct mlxbf_tmfifo *fifo; + + fifo = container_of(work, struct mlxbf_tmfifo, work); + if (!fifo->is_ready) + return; + + mutex_lock(&fifo->lock); + + /* Tx (Send data to the TmFifo). */ + mlxbf_tmfifo_work_rxtx(fifo, MLXBF_TMFIFO_VRING_TX, + MLXBF_TM_TX_LWM_IRQ, false); + + /* Rx (Receive data from the TmFifo). */ + mlxbf_tmfifo_work_rxtx(fifo, MLXBF_TMFIFO_VRING_RX, + MLXBF_TM_RX_HWM_IRQ, true); + + mutex_unlock(&fifo->lock); +} + +/* The notify function is called when new buffers are posted. */ +static bool mlxbf_tmfifo_virtio_notify(struct virtqueue *vq) +{ + struct mlxbf_tmfifo_vring *vring = vq->priv; + struct mlxbf_tmfifo_vdev *tm_vdev; + struct mlxbf_tmfifo *fifo; + unsigned long flags; + + fifo = vring->fifo; + + /* + * Virtio maintains vrings in pairs, even number ring for Rx + * and odd number ring for Tx. + */ + if (vring->index & BIT(0)) { + /* + * Console could make blocking call with interrupts disabled. + * In such case, the vring needs to be served right away. For + * other cases, just set the TX LWM bit to start Tx in the + * worker handler. + */ + if (vring->vdev_id == VIRTIO_ID_CONSOLE) { + spin_lock_irqsave(&fifo->spin_lock, flags); + tm_vdev = fifo->vdev[VIRTIO_ID_CONSOLE]; + mlxbf_tmfifo_console_output(tm_vdev, vring); + spin_unlock_irqrestore(&fifo->spin_lock, flags); + } else if (test_and_set_bit(MLXBF_TM_TX_LWM_IRQ, + &fifo->pend_events)) { + return true; + } + } else { + if (test_and_set_bit(MLXBF_TM_RX_HWM_IRQ, &fifo->pend_events)) + return true; + } + + schedule_work(&fifo->work); + + return true; +} + +/* Get the array of feature bits for this device. */ +static u64 mlxbf_tmfifo_virtio_get_features(struct virtio_device *vdev) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + return tm_vdev->features; +} + +/* Confirm device features to use. */ +static int mlxbf_tmfifo_virtio_finalize_features(struct virtio_device *vdev) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + tm_vdev->features = vdev->features; + + return 0; +} + +/* Free virtqueues found by find_vqs(). */ +static void mlxbf_tmfifo_virtio_del_vqs(struct virtio_device *vdev) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + struct mlxbf_tmfifo_vring *vring; + struct virtqueue *vq; + int i; + + for (i = 0; i < ARRAY_SIZE(tm_vdev->vrings); i++) { + vring = &tm_vdev->vrings[i]; + + /* Release the pending packet. */ + if (vring->desc) + mlxbf_tmfifo_release_pending_pkt(vring); + vq = vring->vq; + if (vq) { + vring->vq = NULL; + vring_del_virtqueue(vq); + } + } +} + +/* Create and initialize the virtual queues. */ +static int mlxbf_tmfifo_virtio_find_vqs(struct virtio_device *vdev, + unsigned int nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char * const names[], + const bool *ctx, + struct irq_affinity *desc) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + struct mlxbf_tmfifo_vring *vring; + struct virtqueue *vq; + int i, ret, size; + + if (nvqs > ARRAY_SIZE(tm_vdev->vrings)) + return -EINVAL; + + for (i = 0; i < nvqs; ++i) { + if (!names[i]) { + ret = -EINVAL; + goto error; + } + vring = &tm_vdev->vrings[i]; + + /* zero vring */ + size = vring_size(vring->num, vring->align); + memset(vring->va, 0, size); + vq = vring_new_virtqueue(i, vring->num, vring->align, vdev, + false, false, vring->va, + mlxbf_tmfifo_virtio_notify, + callbacks[i], names[i]); + if (!vq) { + dev_err(&vdev->dev, "vring_new_virtqueue failed\n"); + ret = -ENOMEM; + goto error; + } + + vqs[i] = vq; + vring->vq = vq; + vq->priv = vring; + } + + return 0; + +error: + mlxbf_tmfifo_virtio_del_vqs(vdev); + return ret; +} + +/* Read the status byte. */ +static u8 mlxbf_tmfifo_virtio_get_status(struct virtio_device *vdev) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + return tm_vdev->status; +} + +/* Write the status byte. */ +static void mlxbf_tmfifo_virtio_set_status(struct virtio_device *vdev, + u8 status) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + tm_vdev->status = status; +} + +/* Reset the device. Not much here for now. */ +static void mlxbf_tmfifo_virtio_reset(struct virtio_device *vdev) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + tm_vdev->status = 0; +} + +/* Read the value of a configuration field. */ +static void mlxbf_tmfifo_virtio_get(struct virtio_device *vdev, + unsigned int offset, + void *buf, + unsigned int len) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + if ((u64)offset + len > sizeof(tm_vdev->config)) + return; + + memcpy(buf, (u8 *)&tm_vdev->config + offset, len); +} + +/* Write the value of a configuration field. */ +static void mlxbf_tmfifo_virtio_set(struct virtio_device *vdev, + unsigned int offset, + const void *buf, + unsigned int len) +{ + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + if ((u64)offset + len > sizeof(tm_vdev->config)) + return; + + memcpy((u8 *)&tm_vdev->config + offset, buf, len); +} + +static void tmfifo_virtio_dev_release(struct device *device) +{ + struct virtio_device *vdev = + container_of(device, struct virtio_device, dev); + struct mlxbf_tmfifo_vdev *tm_vdev = mlxbf_vdev_to_tmfifo(vdev); + + kfree(tm_vdev); +} + +/* Virtio config operations. */ +static const struct virtio_config_ops mlxbf_tmfifo_virtio_config_ops = { + .get_features = mlxbf_tmfifo_virtio_get_features, + .finalize_features = mlxbf_tmfifo_virtio_finalize_features, + .find_vqs = mlxbf_tmfifo_virtio_find_vqs, + .del_vqs = mlxbf_tmfifo_virtio_del_vqs, + .reset = mlxbf_tmfifo_virtio_reset, + .set_status = mlxbf_tmfifo_virtio_set_status, + .get_status = mlxbf_tmfifo_virtio_get_status, + .get = mlxbf_tmfifo_virtio_get, + .set = mlxbf_tmfifo_virtio_set, +}; + +/* Create vdev for the FIFO. */ +static int mlxbf_tmfifo_create_vdev(struct device *dev, + struct mlxbf_tmfifo *fifo, + int vdev_id, u64 features, + void *config, u32 size) +{ + struct mlxbf_tmfifo_vdev *tm_vdev, *reg_dev = NULL; + int ret; + + mutex_lock(&fifo->lock); + + tm_vdev = fifo->vdev[vdev_id]; + if (tm_vdev) { + dev_err(dev, "vdev %d already exists\n", vdev_id); + ret = -EEXIST; + goto fail; + } + + tm_vdev = kzalloc(sizeof(*tm_vdev), GFP_KERNEL); + if (!tm_vdev) { + ret = -ENOMEM; + goto fail; + } + + tm_vdev->vdev.id.device = vdev_id; + tm_vdev->vdev.config = &mlxbf_tmfifo_virtio_config_ops; + tm_vdev->vdev.dev.parent = dev; + tm_vdev->vdev.dev.release = tmfifo_virtio_dev_release; + tm_vdev->features = features; + if (config) + memcpy(&tm_vdev->config, config, size); + + if (mlxbf_tmfifo_alloc_vrings(fifo, tm_vdev)) { + dev_err(dev, "unable to allocate vring\n"); + ret = -ENOMEM; + goto vdev_fail; + } + + /* Allocate an output buffer for the console device. */ + if (vdev_id == VIRTIO_ID_CONSOLE) + tm_vdev->tx_buf.buf = devm_kmalloc(dev, + MLXBF_TMFIFO_CON_TX_BUF_SIZE, + GFP_KERNEL); + fifo->vdev[vdev_id] = tm_vdev; + + /* Register the virtio device. */ + ret = register_virtio_device(&tm_vdev->vdev); + reg_dev = tm_vdev; + if (ret) { + dev_err(dev, "register_virtio_device failed\n"); + goto vdev_fail; + } + + mutex_unlock(&fifo->lock); + return 0; + +vdev_fail: + mlxbf_tmfifo_free_vrings(fifo, tm_vdev); + fifo->vdev[vdev_id] = NULL; + if (reg_dev) + put_device(&tm_vdev->vdev.dev); + else + kfree(tm_vdev); +fail: + mutex_unlock(&fifo->lock); + return ret; +} + +/* Delete vdev for the FIFO. */ +static int mlxbf_tmfifo_delete_vdev(struct mlxbf_tmfifo *fifo, int vdev_id) +{ + struct mlxbf_tmfifo_vdev *tm_vdev; + + mutex_lock(&fifo->lock); + + /* Unregister vdev. */ + tm_vdev = fifo->vdev[vdev_id]; + if (tm_vdev) { + unregister_virtio_device(&tm_vdev->vdev); + mlxbf_tmfifo_free_vrings(fifo, tm_vdev); + fifo->vdev[vdev_id] = NULL; + } + + mutex_unlock(&fifo->lock); + + return 0; +} + +/* Read the configured network MAC address from efi variable. */ +static void mlxbf_tmfifo_get_cfg_mac(u8 *mac) +{ + efi_guid_t guid = EFI_GLOBAL_VARIABLE_GUID; + unsigned long size = ETH_ALEN; + u8 buf[ETH_ALEN]; + efi_status_t rc; + + rc = efi.get_variable(mlxbf_tmfifo_efi_name, &guid, NULL, &size, buf); + if (rc == EFI_SUCCESS && size == ETH_ALEN) + ether_addr_copy(mac, buf); + else + ether_addr_copy(mac, mlxbf_tmfifo_net_default_mac); +} + +/* Set TmFifo thresolds which is used to trigger interrupts. */ +static void mlxbf_tmfifo_set_threshold(struct mlxbf_tmfifo *fifo) +{ + u64 ctl; + + /* Get Tx FIFO size and set the low/high watermark. */ + ctl = readq(fifo->tx_base + MLXBF_TMFIFO_TX_CTL); + fifo->tx_fifo_size = + FIELD_GET(MLXBF_TMFIFO_TX_CTL__MAX_ENTRIES_MASK, ctl); + ctl = (ctl & ~MLXBF_TMFIFO_TX_CTL__LWM_MASK) | + FIELD_PREP(MLXBF_TMFIFO_TX_CTL__LWM_MASK, + fifo->tx_fifo_size / 2); + ctl = (ctl & ~MLXBF_TMFIFO_TX_CTL__HWM_MASK) | + FIELD_PREP(MLXBF_TMFIFO_TX_CTL__HWM_MASK, + fifo->tx_fifo_size - 1); + writeq(ctl, fifo->tx_base + MLXBF_TMFIFO_TX_CTL); + + /* Get Rx FIFO size and set the low/high watermark. */ + ctl = readq(fifo->rx_base + MLXBF_TMFIFO_RX_CTL); + fifo->rx_fifo_size = + FIELD_GET(MLXBF_TMFIFO_RX_CTL__MAX_ENTRIES_MASK, ctl); + ctl = (ctl & ~MLXBF_TMFIFO_RX_CTL__LWM_MASK) | + FIELD_PREP(MLXBF_TMFIFO_RX_CTL__LWM_MASK, 0); + ctl = (ctl & ~MLXBF_TMFIFO_RX_CTL__HWM_MASK) | + FIELD_PREP(MLXBF_TMFIFO_RX_CTL__HWM_MASK, 1); + writeq(ctl, fifo->rx_base + MLXBF_TMFIFO_RX_CTL); +} + +static void mlxbf_tmfifo_cleanup(struct mlxbf_tmfifo *fifo) +{ + int i; + + fifo->is_ready = false; + del_timer_sync(&fifo->timer); + mlxbf_tmfifo_disable_irqs(fifo); + cancel_work_sync(&fifo->work); + for (i = 0; i < MLXBF_TMFIFO_VDEV_MAX; i++) + mlxbf_tmfifo_delete_vdev(fifo, i); +} + +/* Probe the TMFIFO. */ +static int mlxbf_tmfifo_probe(struct platform_device *pdev) +{ + struct virtio_net_config net_config; + struct device *dev = &pdev->dev; + struct mlxbf_tmfifo *fifo; + int i, rc; + + fifo = devm_kzalloc(dev, sizeof(*fifo), GFP_KERNEL); + if (!fifo) + return -ENOMEM; + + spin_lock_init(&fifo->spin_lock); + INIT_WORK(&fifo->work, mlxbf_tmfifo_work_handler); + mutex_init(&fifo->lock); + + /* Get the resource of the Rx FIFO. */ + fifo->rx_base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(fifo->rx_base)) + return PTR_ERR(fifo->rx_base); + + /* Get the resource of the Tx FIFO. */ + fifo->tx_base = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(fifo->tx_base)) + return PTR_ERR(fifo->tx_base); + + platform_set_drvdata(pdev, fifo); + + timer_setup(&fifo->timer, mlxbf_tmfifo_timer, 0); + + for (i = 0; i < MLXBF_TM_MAX_IRQ; i++) { + fifo->irq_info[i].index = i; + fifo->irq_info[i].fifo = fifo; + fifo->irq_info[i].irq = platform_get_irq(pdev, i); + rc = devm_request_irq(dev, fifo->irq_info[i].irq, + mlxbf_tmfifo_irq_handler, 0, + "tmfifo", &fifo->irq_info[i]); + if (rc) { + dev_err(dev, "devm_request_irq failed\n"); + fifo->irq_info[i].irq = 0; + return rc; + } + } + + mlxbf_tmfifo_set_threshold(fifo); + + /* Create the console vdev. */ + rc = mlxbf_tmfifo_create_vdev(dev, fifo, VIRTIO_ID_CONSOLE, 0, NULL, 0); + if (rc) + goto fail; + + /* Create the network vdev. */ + memset(&net_config, 0, sizeof(net_config)); + net_config.mtu = ETH_DATA_LEN; + net_config.status = VIRTIO_NET_S_LINK_UP; + mlxbf_tmfifo_get_cfg_mac(net_config.mac); + rc = mlxbf_tmfifo_create_vdev(dev, fifo, VIRTIO_ID_NET, + MLXBF_TMFIFO_NET_FEATURES, &net_config, + sizeof(net_config)); + if (rc) + goto fail; + + mod_timer(&fifo->timer, jiffies + MLXBF_TMFIFO_TIMER_INTERVAL); + + fifo->is_ready = true; + return 0; + +fail: + mlxbf_tmfifo_cleanup(fifo); + return rc; +} + +/* Device remove function. */ +static int mlxbf_tmfifo_remove(struct platform_device *pdev) +{ + struct mlxbf_tmfifo *fifo = platform_get_drvdata(pdev); + + mlxbf_tmfifo_cleanup(fifo); + + return 0; +} + +static const struct acpi_device_id mlxbf_tmfifo_acpi_match[] = { + { "MLNXBF01", 0 }, + {} +}; +MODULE_DEVICE_TABLE(acpi, mlxbf_tmfifo_acpi_match); + +static struct platform_driver mlxbf_tmfifo_driver = { + .probe = mlxbf_tmfifo_probe, + .remove = mlxbf_tmfifo_remove, + .driver = { + .name = "bf-tmfifo", + .acpi_match_table = mlxbf_tmfifo_acpi_match, + }, +}; + +module_platform_driver(mlxbf_tmfifo_driver); + +MODULE_DESCRIPTION("Mellanox BlueField SoC TmFifo Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Mellanox Technologies"); diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index a1ed13183559..85b92a95e4c8 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -1263,6 +1263,17 @@ config INTEL_CHTDC_TI_PWRBTN To compile this driver as a module, choose M here: the module will be called intel_chtdc_ti_pwrbtn. +config INTEL_MRFLD_PWRBTN + tristate "Intel Merrifield Basin Cove power button driver" + depends on INTEL_SOC_PMIC_MRFLD + depends on INPUT + ---help--- + This option adds a power button driver for Basin Cove PMIC + on Intel Merrifield devices. + + To compile this driver as a module, choose M here: the module + will be called intel_mrfld_pwrbtn. + config I2C_MULTI_INSTANTIATE tristate "I2C multi instantiate pseudo device driver" depends on I2C && ACPI diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index 86cb76677bc8..87b0069bd781 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -94,6 +94,7 @@ obj-$(CONFIG_PMC_ATOM) += pmc_atom.o obj-$(CONFIG_MLX_PLATFORM) += mlx-platform.o obj-$(CONFIG_INTEL_TURBO_MAX_3) += intel_turbo_max_3.o obj-$(CONFIG_INTEL_CHTDC_TI_PWRBTN) += intel_chtdc_ti_pwrbtn.o +obj-$(CONFIG_INTEL_MRFLD_PWRBTN) += intel_mrfld_pwrbtn.o obj-$(CONFIG_I2C_MULTI_INSTANTIATE) += i2c-multi-instantiate.o obj-$(CONFIG_INTEL_ATOMISP2_PM) += intel_atomisp2_pm.o obj-$(CONFIG_PCENGINES_APU2) += pcengines-apuv2.o diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c index f10af5c383c5..83fd7677af24 100644 --- a/drivers/platform/x86/alienware-wmi.c +++ b/drivers/platform/x86/alienware-wmi.c @@ -522,23 +522,22 @@ static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args, input.length = (acpi_size) sizeof(*in_args); input.pointer = in_args; - if (out_data != NULL) { + if (out_data) { output.length = ACPI_ALLOCATE_BUFFER; output.pointer = NULL; status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, command, &input, &output); - } else + if (ACPI_SUCCESS(status)) { + obj = (union acpi_object *)output.pointer; + if (obj && obj->type == ACPI_TYPE_INTEGER) + *out_data = (u32)obj->integer.value; + } + kfree(output.pointer); + } else { status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, command, &input, NULL); - - if (ACPI_SUCCESS(status) && out_data != NULL) { - obj = (union acpi_object *)output.pointer; - if (obj && obj->type == ACPI_TYPE_INTEGER) - *out_data = (u32) obj->integer.value; } - kfree(output.pointer); return status; - } /* @@ -588,7 +587,7 @@ static ssize_t show_hdmi_source(struct device *dev, return scnprintf(buf, PAGE_SIZE, "input [gpu] unknown\n"); } - pr_err("alienware-wmi: unknown HDMI source status: %d\n", out_data); + pr_err("alienware-wmi: unknown HDMI source status: %u\n", status); return scnprintf(buf, PAGE_SIZE, "input gpu [unknown]\n"); } diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index ee1fa93708ec..f94691615881 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -66,10 +66,13 @@ MODULE_LICENSE("GPL"); #define NOTIFY_BRNUP_MAX 0x1f #define NOTIFY_BRNDOWN_MIN 0x20 #define NOTIFY_BRNDOWN_MAX 0x2e +#define NOTIFY_FNLOCK_TOGGLE 0x4e #define NOTIFY_KBD_BRTUP 0xc4 #define NOTIFY_KBD_BRTDWN 0xc5 #define NOTIFY_KBD_BRTTOGGLE 0xc7 +#define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0) + #define ASUS_FAN_DESC "cpu_fan" #define ASUS_FAN_MFUN 0x13 #define ASUS_FAN_SFUN_READ 0x06 @@ -177,6 +180,8 @@ struct asus_wmi { struct workqueue_struct *hotplug_workqueue; struct work_struct hotplug_work; + bool fnlock_locked; + struct asus_wmi_debug debug; struct asus_wmi_driver *driver; @@ -1619,6 +1624,23 @@ static int is_display_toggle(int code) return 0; } +static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus) +{ + u32 result; + + asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result); + + return (result & ASUS_WMI_DSTS_PRESENCE_BIT) && + !(result & ASUS_WMI_FNLOCK_BIOS_DISABLED); +} + +static void asus_wmi_fnlock_update(struct asus_wmi *asus) +{ + int mode = asus->fnlock_locked; + + asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL); +} + static void asus_wmi_notify(u32 value, void *context) { struct asus_wmi *asus = context; @@ -1680,6 +1702,12 @@ static void asus_wmi_notify(u32 value, void *context) goto exit; } + if (code == NOTIFY_FNLOCK_TOGGLE) { + asus->fnlock_locked = !asus->fnlock_locked; + asus_wmi_fnlock_update(asus); + goto exit; + } + if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle) goto exit; @@ -2134,6 +2162,11 @@ static int asus_wmi_add(struct platform_device *pdev) } else err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL); + if (asus_wmi_has_fnlock_key(asus)) { + asus->fnlock_locked = true; + asus_wmi_fnlock_update(asus); + } + status = wmi_install_notify_handler(asus->driver->event_guid, asus_wmi_notify, asus); if (ACPI_FAILURE(status)) { @@ -2213,6 +2246,8 @@ static int asus_hotk_resume(struct device *device) if (!IS_ERR_OR_NULL(asus->kbd_led.dev)) kbd_led_update(asus); + if (asus_wmi_has_fnlock_key(asus)) + asus_wmi_fnlock_update(asus); return 0; } @@ -2249,6 +2284,8 @@ static int asus_hotk_restore(struct device *device) if (!IS_ERR_OR_NULL(asus->kbd_led.dev)) kbd_led_update(asus); + if (asus_wmi_has_fnlock_key(asus)) + asus_wmi_fnlock_update(asus); return 0; } diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index 95e6ca116e00..a561f653cf13 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -531,7 +531,7 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data) return; } - dell_fill_request(&buffer, 0, 0x2, 0, 0); + dell_fill_request(&buffer, 0x2, 0, 0, 0); ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL); hwswitch = buffer.output[1]; @@ -562,7 +562,7 @@ static int dell_debugfs_show(struct seq_file *s, void *data) return ret; status = buffer.output[1]; - dell_fill_request(&buffer, 0, 0x2, 0, 0); + dell_fill_request(&buffer, 0x2, 0, 0, 0); hwswitch_ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL); if (hwswitch_ret) return hwswitch_ret; @@ -647,7 +647,7 @@ static void dell_update_rfkill(struct work_struct *ignored) if (ret != 0) return; - dell_fill_request(&buffer, 0, 0x2, 0, 0); + dell_fill_request(&buffer, 0x2, 0, 0, 0); ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL); if (ret == 0 && (status & BIT(0))) diff --git a/drivers/platform/x86/dell-rbtn.c b/drivers/platform/x86/dell-rbtn.c index f3afe778001e..56535d7222dd 100644 --- a/drivers/platform/x86/dell-rbtn.c +++ b/drivers/platform/x86/dell-rbtn.c @@ -18,6 +18,8 @@ #include <linux/rfkill.h> #include <linux/input.h> +#include "dell-rbtn.h" + enum rbtn_type { RBTN_UNKNOWN, RBTN_TOGGLE, diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index c53ae86b59c7..2d94536dea88 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -980,312 +980,21 @@ static void ideapad_wmi_notify(u32 value, void *context) #endif /* - * Some ideapads don't have a hardware rfkill switch, reading VPCCMD_R_RF - * always results in 0 on these models, causing ideapad_laptop to wrongly - * report all radios as hardware-blocked. + * Some ideapads have a hardware rfkill switch, but most do not have one. + * Reading VPCCMD_R_RF always results in 0 on models without a hardware rfkill, + * switch causing ideapad_laptop to wrongly report all radios as hw-blocked. + * There used to be a long list of DMI ids for models without a hw rfkill + * switch here, but that resulted in playing whack a mole. + * More importantly wrongly reporting the wifi radio as hw-blocked, results in + * non working wifi. Whereas not reporting it hw-blocked, when it actually is + * hw-blocked results in an empty SSID list, which is a much more benign + * failure mode. + * So the default now is the much safer option of assuming there is no + * hardware rfkill switch. This default also actually matches most hardware, + * since having a hw rfkill switch is quite rare on modern hardware, so this + * also leads to a much shorter list. */ -static const struct dmi_system_id no_hw_rfkill_list[] = { - { - .ident = "Lenovo RESCUER R720-15IKBN", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo R720-15IKBN"), - }, - }, - { - .ident = "Lenovo G40-30", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo G40-30"), - }, - }, - { - .ident = "Lenovo G50-30", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo G50-30"), - }, - }, - { - .ident = "Lenovo V310-14IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-14IKB"), - }, - }, - { - .ident = "Lenovo V310-14ISK", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-14ISK"), - }, - }, - { - .ident = "Lenovo V310-15IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-15IKB"), - }, - }, - { - .ident = "Lenovo V310-15ISK", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-15ISK"), - }, - }, - { - .ident = "Lenovo V510-15IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V510-15IKB"), - }, - }, - { - .ident = "Lenovo ideapad 300-15IBR", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300-15IBR"), - }, - }, - { - .ident = "Lenovo ideapad 300-15IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300-15IKB"), - }, - }, - { - .ident = "Lenovo ideapad 300S-11IBR", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300S-11BR"), - }, - }, - { - .ident = "Lenovo ideapad 310-15ABR", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15ABR"), - }, - }, - { - .ident = "Lenovo ideapad 310-15IAP", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15IAP"), - }, - }, - { - .ident = "Lenovo ideapad 310-15IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15IKB"), - }, - }, - { - .ident = "Lenovo ideapad 310-15ISK", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15ISK"), - }, - }, - { - .ident = "Lenovo ideapad 330-15ICH", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 330-15ICH"), - }, - }, - { - .ident = "Lenovo ideapad 530S-14ARR", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 530S-14ARR"), - }, - }, - { - .ident = "Lenovo ideapad S130-14IGM", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad S130-14IGM"), - }, - }, - { - .ident = "Lenovo ideapad Y700-14ISK", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-14ISK"), - }, - }, - { - .ident = "Lenovo ideapad Y700-15ACZ", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-15ACZ"), - }, - }, - { - .ident = "Lenovo ideapad Y700-15ISK", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-15ISK"), - }, - }, - { - .ident = "Lenovo ideapad Y700 Touch-15ISK", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700 Touch-15ISK"), - }, - }, - { - .ident = "Lenovo ideapad Y700-17ISK", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-17ISK"), - }, - }, - { - .ident = "Lenovo ideapad MIIX 720-12IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "MIIX 720-12IKB"), - }, - }, - { - .ident = "Lenovo Legion Y520-15IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Y520-15IKB"), - }, - }, - { - .ident = "Lenovo Y520-15IKBM", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Y520-15IKBM"), - }, - }, - { - .ident = "Lenovo Legion Y530-15ICH", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Legion Y530-15ICH"), - }, - }, - { - .ident = "Lenovo Legion Y530-15ICH-1060", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Legion Y530-15ICH-1060"), - }, - }, - { - .ident = "Lenovo Legion Y720-15IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Y720-15IKB"), - }, - }, - { - .ident = "Lenovo Legion Y720-15IKBN", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Y720-15IKBN"), - }, - }, - { - .ident = "Lenovo Y720-15IKBM", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Y720-15IKBM"), - }, - }, - { - .ident = "Lenovo Yoga 2 11 / 13 / Pro", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 2"), - }, - }, - { - .ident = "Lenovo Yoga 2 11 / 13 / Pro", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_BOARD_NAME, "Yoga2"), - }, - }, - { - .ident = "Lenovo Yoga 2 13", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Yoga 2 13"), - }, - }, - { - .ident = "Lenovo Yoga 3 1170 / 1470", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 3"), - }, - }, - { - .ident = "Lenovo Yoga 3 Pro 1370", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 3"), - }, - }, - { - .ident = "Lenovo Yoga 700", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 700"), - }, - }, - { - .ident = "Lenovo Yoga 900", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 900"), - }, - }, - { - .ident = "Lenovo Yoga 900", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_BOARD_NAME, "VIUU4"), - }, - }, - { - .ident = "Lenovo YOGA 910-13IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 910-13IKB"), - }, - }, - { - .ident = "Lenovo YOGA 920-13IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 920-13IKB"), - }, - }, - { - .ident = "Lenovo YOGA C930-13IKB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA C930-13IKB"), - }, - }, - { - .ident = "Lenovo Zhaoyang E42-80", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "ZHAOYANG E42-80"), - }, - }, +static const struct dmi_system_id hw_rfkill_list[] = { {} }; @@ -1311,7 +1020,7 @@ static int ideapad_acpi_add(struct platform_device *pdev) priv->cfg = cfg; priv->adev = adev; priv->platform_device = pdev; - priv->has_hw_rfkill_switch = !dmi_check_system(no_hw_rfkill_list); + priv->has_hw_rfkill_switch = dmi_check_system(hw_rfkill_list); ret = ideapad_sysfs_init(priv); if (ret) diff --git a/drivers/platform/x86/intel_mrfld_pwrbtn.c b/drivers/platform/x86/intel_mrfld_pwrbtn.c new file mode 100644 index 000000000000..d58fea51747e --- /dev/null +++ b/drivers/platform/x86/intel_mrfld_pwrbtn.c @@ -0,0 +1,107 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Power-button driver for Basin Cove PMIC + * + * Copyright (c) 2019, Intel Corporation. + * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com> + */ + +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/device.h> +#include <linux/mfd/intel_soc_pmic.h> +#include <linux/mfd/intel_soc_pmic_mrfld.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_wakeirq.h> +#include <linux/slab.h> + +#define BCOVE_PBSTATUS 0x27 +#define BCOVE_PBSTATUS_PBLVL BIT(4) /* 1 - release, 0 - press */ + +static irqreturn_t mrfld_pwrbtn_interrupt(int irq, void *dev_id) +{ + struct input_dev *input = dev_id; + struct device *dev = input->dev.parent; + struct regmap *regmap = dev_get_drvdata(dev); + unsigned int state; + int ret; + + ret = regmap_read(regmap, BCOVE_PBSTATUS, &state); + if (ret) + return IRQ_NONE; + + dev_dbg(dev, "PBSTATUS=0x%x\n", state); + input_report_key(input, KEY_POWER, !(state & BCOVE_PBSTATUS_PBLVL)); + input_sync(input); + + regmap_update_bits(regmap, BCOVE_MIRQLVL1, BCOVE_LVL1_PWRBTN, 0); + return IRQ_HANDLED; +} + +static int mrfld_pwrbtn_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct intel_soc_pmic *pmic = dev_get_drvdata(dev->parent); + struct input_dev *input; + int irq, ret; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + input = devm_input_allocate_device(dev); + if (!input) + return -ENOMEM; + input->name = pdev->name; + input->phys = "power-button/input0"; + input->id.bustype = BUS_HOST; + input->dev.parent = dev; + input_set_capability(input, EV_KEY, KEY_POWER); + ret = input_register_device(input); + if (ret) + return ret; + + dev_set_drvdata(dev, pmic->regmap); + + ret = devm_request_threaded_irq(dev, irq, NULL, mrfld_pwrbtn_interrupt, + IRQF_ONESHOT | IRQF_SHARED, pdev->name, + input); + if (ret) + return ret; + + regmap_update_bits(pmic->regmap, BCOVE_MIRQLVL1, BCOVE_LVL1_PWRBTN, 0); + regmap_update_bits(pmic->regmap, BCOVE_MPBIRQ, BCOVE_PBIRQ_PBTN, 0); + + device_init_wakeup(dev, true); + dev_pm_set_wake_irq(dev, irq); + return 0; +} + +static int mrfld_pwrbtn_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + + dev_pm_clear_wake_irq(dev); + device_init_wakeup(dev, false); + return 0; +} + +static const struct platform_device_id mrfld_pwrbtn_id_table[] = { + { .name = "mrfld_bcove_pwrbtn" }, + {} +}; +MODULE_DEVICE_TABLE(platform, mrfld_pwrbtn_id_table); + +static struct platform_driver mrfld_pwrbtn_driver = { + .driver = { + .name = "mrfld_bcove_pwrbtn", + }, + .probe = mrfld_pwrbtn_probe, + .remove = mrfld_pwrbtn_remove, + .id_table = mrfld_pwrbtn_id_table, +}; +module_platform_driver(mrfld_pwrbtn_driver); + +MODULE_DESCRIPTION("Power-button driver for Basin Cove PMIC"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c index f2c621b55f49..1d902230ba61 100644 --- a/drivers/platform/x86/intel_pmc_core.c +++ b/drivers/platform/x86/intel_pmc_core.c @@ -19,6 +19,8 @@ #include <linux/io.h> #include <linux/module.h> #include <linux/pci.h> +#include <linux/platform_device.h> +#include <linux/suspend.h> #include <linux/uaccess.h> #include <asm/cpu_device_id.h> @@ -828,7 +830,7 @@ static const struct pci_device_id pmc_pci_ids[] = { * the platform BIOS enforces 24Mhx Crystal to shutdown * before PMC can assert SLP_S0#. */ -int quirk_xtal_ignore(const struct dmi_system_id *id) +static int quirk_xtal_ignore(const struct dmi_system_id *id) { struct pmc_dev *pmcdev = &pmc; u32 value; @@ -854,13 +856,17 @@ static const struct dmi_system_id pmc_core_dmi_table[] = { {} }; -static int __init pmc_core_probe(void) +static int pmc_core_probe(struct platform_device *pdev) { + static bool device_initialized; struct pmc_dev *pmcdev = &pmc; const struct x86_cpu_id *cpu_id; u64 slp_s0_addr; int err; + if (device_initialized) + return -ENODEV; + cpu_id = x86_match_cpu(intel_pmc_core_ids); if (!cpu_id) return -ENODEV; @@ -886,30 +892,178 @@ static int __init pmc_core_probe(void) return -ENOMEM; mutex_init(&pmcdev->lock); + platform_set_drvdata(pdev, pmcdev); pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit(); + dmi_check_system(pmc_core_dmi_table); err = pmc_core_dbgfs_register(pmcdev); if (err < 0) { - pr_warn(" debugfs register failed.\n"); + dev_warn(&pdev->dev, "debugfs register failed.\n"); iounmap(pmcdev->regbase); return err; } - dmi_check_system(pmc_core_dmi_table); - pr_info(" initialized\n"); + device_initialized = true; + dev_info(&pdev->dev, " initialized\n"); + return 0; } -module_init(pmc_core_probe) -static void __exit pmc_core_remove(void) +static int pmc_core_remove(struct platform_device *pdev) { - struct pmc_dev *pmcdev = &pmc; + struct pmc_dev *pmcdev = platform_get_drvdata(pdev); pmc_core_dbgfs_unregister(pmcdev); + platform_set_drvdata(pdev, NULL); mutex_destroy(&pmcdev->lock); iounmap(pmcdev->regbase); + return 0; } -module_exit(pmc_core_remove) + +#ifdef CONFIG_PM_SLEEP + +static bool warn_on_s0ix_failures; +module_param(warn_on_s0ix_failures, bool, 0644); +MODULE_PARM_DESC(warn_on_s0ix_failures, "Check and warn for S0ix failures"); + +static int pmc_core_suspend(struct device *dev) +{ + struct pmc_dev *pmcdev = dev_get_drvdata(dev); + + pmcdev->check_counters = false; + + /* No warnings on S0ix failures */ + if (!warn_on_s0ix_failures) + return 0; + + /* Check if the syspend will actually use S0ix */ + if (pm_suspend_via_firmware()) + return 0; + + /* Save PC10 residency for checking later */ + if (rdmsrl_safe(MSR_PKG_C10_RESIDENCY, &pmcdev->pc10_counter)) + return -EIO; + + /* Save S0ix residency for checking later */ + if (pmc_core_dev_state_get(pmcdev, &pmcdev->s0ix_counter)) + return -EIO; + + pmcdev->check_counters = true; + return 0; +} + +static inline bool pmc_core_is_pc10_failed(struct pmc_dev *pmcdev) +{ + u64 pc10_counter; + + if (rdmsrl_safe(MSR_PKG_C10_RESIDENCY, &pc10_counter)) + return false; + + if (pc10_counter == pmcdev->pc10_counter) + return true; + + return false; +} + +static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev) +{ + u64 s0ix_counter; + + if (pmc_core_dev_state_get(pmcdev, &s0ix_counter)) + return false; + + if (s0ix_counter == pmcdev->s0ix_counter) + return true; + + return false; +} + +static int pmc_core_resume(struct device *dev) +{ + struct pmc_dev *pmcdev = dev_get_drvdata(dev); + const struct pmc_bit_map **maps = pmcdev->map->slps0_dbg_maps; + int offset = pmcdev->map->slps0_dbg_offset; + const struct pmc_bit_map *map; + u32 data; + + if (!pmcdev->check_counters) + return 0; + + if (!pmc_core_is_s0ix_failed(pmcdev)) + return 0; + + if (pmc_core_is_pc10_failed(pmcdev)) { + /* S0ix failed because of PC10 entry failure */ + dev_info(dev, "CPU did not enter PC10!!! (PC10 cnt=0x%llx)\n", + pmcdev->pc10_counter); + return 0; + } + + /* The real interesting case - S0ix failed - lets ask PMC why. */ + dev_warn(dev, "CPU did not enter SLP_S0!!! (S0ix cnt=%llu)\n", + pmcdev->s0ix_counter); + while (*maps) { + map = *maps; + data = pmc_core_reg_read(pmcdev, offset); + offset += 4; + while (map->name) { + dev_dbg(dev, "SLP_S0_DBG: %-32s\tState: %s\n", + map->name, + data & map->bit_mask ? "Yes" : "No"); + map++; + } + maps++; + } + return 0; +} + +#endif + +static const struct dev_pm_ops pmc_core_pm_ops = { + SET_LATE_SYSTEM_SLEEP_PM_OPS(pmc_core_suspend, pmc_core_resume) +}; + +static struct platform_driver pmc_core_driver = { + .driver = { + .name = "intel_pmc_core", + .pm = &pmc_core_pm_ops, + }, + .probe = pmc_core_probe, + .remove = pmc_core_remove, +}; + +static struct platform_device pmc_core_device = { + .name = "intel_pmc_core", +}; + +static int __init pmc_core_init(void) +{ + int ret; + + if (!x86_match_cpu(intel_pmc_core_ids)) + return -ENODEV; + + ret = platform_driver_register(&pmc_core_driver); + if (ret) + return ret; + + ret = platform_device_register(&pmc_core_device); + if (ret) { + platform_driver_unregister(&pmc_core_driver); + return ret; + } + + return 0; +} + +static void __exit pmc_core_exit(void) +{ + platform_device_unregister(&pmc_core_device); + platform_driver_unregister(&pmc_core_driver); +} + +module_init(pmc_core_init) +module_exit(pmc_core_exit) MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Intel PMC Core Driver"); diff --git a/drivers/platform/x86/intel_pmc_core.h b/drivers/platform/x86/intel_pmc_core.h index 88d9c0653a5f..fdee5772e532 100644 --- a/drivers/platform/x86/intel_pmc_core.h +++ b/drivers/platform/x86/intel_pmc_core.h @@ -241,6 +241,9 @@ struct pmc_reg_map { * @pmc_xram_read_bit: flag to indicate whether PMC XRAM shadow registers * used to read MPHY PG and PLL status are available * @mutex_lock: mutex to complete one transcation + * @check_counters: On resume, check if counters are getting incremented + * @pc10_counter: PC10 residency counter + * @s0ix_counter: S0ix residency (step adjusted) * * pmc_dev contains info about power management controller device. */ @@ -253,6 +256,10 @@ struct pmc_dev { #endif /* CONFIG_DEBUG_FS */ int pmc_xram_read_bit; struct mutex lock; /* generic mutex lock for PMC Core */ + + bool check_counters; /* Check for counter increments on resume */ + u64 pc10_counter; + u64 s0ix_counter; }; #endif /* PMC_CORE_H */ diff --git a/drivers/platform/x86/intel_pmc_ipc.c b/drivers/platform/x86/intel_pmc_ipc.c index 7964ba22ef8d..55037ff258f8 100644 --- a/drivers/platform/x86/intel_pmc_ipc.c +++ b/drivers/platform/x86/intel_pmc_ipc.c @@ -40,14 +40,14 @@ * The ARC handles the interrupt and services it, writing optional data to * the IPC1 registers, updates the IPC_STS response register with the status. */ -#define IPC_CMD 0x0 -#define IPC_CMD_MSI 0x100 +#define IPC_CMD 0x00 +#define IPC_CMD_MSI BIT(8) #define IPC_CMD_SIZE 16 #define IPC_CMD_SUBCMD 12 #define IPC_STATUS 0x04 -#define IPC_STATUS_IRQ 0x4 -#define IPC_STATUS_ERR 0x2 -#define IPC_STATUS_BUSY 0x1 +#define IPC_STATUS_IRQ BIT(2) +#define IPC_STATUS_ERR BIT(1) +#define IPC_STATUS_BUSY BIT(0) #define IPC_SPTR 0x08 #define IPC_DPTR 0x0C #define IPC_WRITE_BUFFER 0x80 @@ -101,13 +101,13 @@ #define TELEM_SSRAM_SIZE 240 #define TELEM_PMC_SSRAM_OFFSET 0x1B00 #define TELEM_PUNIT_SSRAM_OFFSET 0x1A00 -#define TCO_PMC_OFFSET 0x8 -#define TCO_PMC_SIZE 0x4 +#define TCO_PMC_OFFSET 0x08 +#define TCO_PMC_SIZE 0x04 /* PMC register bit definitions */ /* PMC_CFG_REG bit masks */ -#define PMC_CFG_NO_REBOOT_MASK (1 << 4) +#define PMC_CFG_NO_REBOOT_MASK BIT_MASK(4) #define PMC_CFG_NO_REBOOT_EN (1 << 4) #define PMC_CFG_NO_REBOOT_DIS (0 << 4) @@ -131,6 +131,7 @@ static struct intel_pmc_ipc_dev { /* punit */ struct platform_device *punit_dev; + unsigned int punit_res_count; /* Telemetry */ resource_size_t telem_pmc_ssram_base; @@ -682,7 +683,7 @@ static int ipc_create_punit_device(void) .name = PUNIT_DEVICE_NAME, .id = -1, .res = punit_res_array, - .num_res = ARRAY_SIZE(punit_res_array), + .num_res = ipcdev.punit_res_count, }; pdev = platform_device_register_full(&pdevinfo); @@ -771,13 +772,17 @@ static int ipc_create_pmc_devices(void) if (ret) { dev_err(ipcdev.dev, "Failed to add punit platform device\n"); platform_device_unregister(ipcdev.tco_dev); + return ret; } if (!ipcdev.telem_res_inval) { ret = ipc_create_telemetry_device(); - if (ret) + if (ret) { dev_warn(ipcdev.dev, "Failed to add telemetry platform device\n"); + platform_device_unregister(ipcdev.punit_dev); + platform_device_unregister(ipcdev.tco_dev); + } } return ret; @@ -785,7 +790,7 @@ static int ipc_create_pmc_devices(void) static int ipc_plat_get_res(struct platform_device *pdev) { - struct resource *res, *punit_res; + struct resource *res, *punit_res = punit_res_array; void __iomem *addr; int size; @@ -800,7 +805,8 @@ static int ipc_plat_get_res(struct platform_device *pdev) ipcdev.acpi_io_size = size; dev_info(&pdev->dev, "io res: %pR\n", res); - punit_res = punit_res_array; + ipcdev.punit_res_count = 0; + /* This is index 0 to cover BIOS data register */ res = platform_get_resource(pdev, IORESOURCE_MEM, PLAT_RESOURCE_BIOS_DATA_INDEX); @@ -808,7 +814,7 @@ static int ipc_plat_get_res(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to get res of punit BIOS data\n"); return -ENXIO; } - *punit_res = *res; + punit_res[ipcdev.punit_res_count++] = *res; dev_info(&pdev->dev, "punit BIOS data res: %pR\n", res); /* This is index 1 to cover BIOS interface register */ @@ -818,42 +824,38 @@ static int ipc_plat_get_res(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to get res of punit BIOS iface\n"); return -ENXIO; } - *++punit_res = *res; + punit_res[ipcdev.punit_res_count++] = *res; dev_info(&pdev->dev, "punit BIOS interface res: %pR\n", res); /* This is index 2 to cover ISP data register, optional */ res = platform_get_resource(pdev, IORESOURCE_MEM, PLAT_RESOURCE_ISP_DATA_INDEX); - ++punit_res; if (res) { - *punit_res = *res; + punit_res[ipcdev.punit_res_count++] = *res; dev_info(&pdev->dev, "punit ISP data res: %pR\n", res); } /* This is index 3 to cover ISP interface register, optional */ res = platform_get_resource(pdev, IORESOURCE_MEM, PLAT_RESOURCE_ISP_IFACE_INDEX); - ++punit_res; if (res) { - *punit_res = *res; + punit_res[ipcdev.punit_res_count++] = *res; dev_info(&pdev->dev, "punit ISP interface res: %pR\n", res); } /* This is index 4 to cover GTD data register, optional */ res = platform_get_resource(pdev, IORESOURCE_MEM, PLAT_RESOURCE_GTD_DATA_INDEX); - ++punit_res; if (res) { - *punit_res = *res; + punit_res[ipcdev.punit_res_count++] = *res; dev_info(&pdev->dev, "punit GTD data res: %pR\n", res); } /* This is index 5 to cover GTD interface register, optional */ res = platform_get_resource(pdev, IORESOURCE_MEM, PLAT_RESOURCE_GTD_IFACE_INDEX); - ++punit_res; if (res) { - *punit_res = *res; + punit_res[ipcdev.punit_res_count++] = *res; dev_info(&pdev->dev, "punit GTD interface res: %pR\n", res); } diff --git a/drivers/platform/x86/intel_punit_ipc.c b/drivers/platform/x86/intel_punit_ipc.c index 79671927f4ef..ab7ae1950867 100644 --- a/drivers/platform/x86/intel_punit_ipc.c +++ b/drivers/platform/x86/intel_punit_ipc.c @@ -252,28 +252,28 @@ static int intel_punit_get_bars(struct platform_device *pdev) * - GTDRIVER_IPC BASE_IFACE */ res = platform_get_resource(pdev, IORESOURCE_MEM, 2); - if (res && resource_size(res) > 1) { + if (res) { addr = devm_ioremap_resource(&pdev->dev, res); if (!IS_ERR(addr)) punit_ipcdev->base[ISPDRIVER_IPC][BASE_DATA] = addr; } res = platform_get_resource(pdev, IORESOURCE_MEM, 3); - if (res && resource_size(res) > 1) { + if (res) { addr = devm_ioremap_resource(&pdev->dev, res); if (!IS_ERR(addr)) punit_ipcdev->base[ISPDRIVER_IPC][BASE_IFACE] = addr; } res = platform_get_resource(pdev, IORESOURCE_MEM, 4); - if (res && resource_size(res) > 1) { + if (res) { addr = devm_ioremap_resource(&pdev->dev, res); if (!IS_ERR(addr)) punit_ipcdev->base[GTDRIVER_IPC][BASE_DATA] = addr; } res = platform_get_resource(pdev, IORESOURCE_MEM, 5); - if (res && resource_size(res) > 1) { + if (res) { addr = devm_ioremap_resource(&pdev->dev, res); if (!IS_ERR(addr)) punit_ipcdev->base[GTDRIVER_IPC][BASE_IFACE] = addr; diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c index 48fa7573e29b..cee039f57499 100644 --- a/drivers/platform/x86/mlx-platform.c +++ b/drivers/platform/x86/mlx-platform.c @@ -56,6 +56,16 @@ #define MLXPLAT_CPLD_LPC_REG_FAN_OFFSET 0x88 #define MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET 0x89 #define MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET 0x8a +#define MLXPLAT_CPLD_LPC_REG_WD_CLEAR_OFFSET 0xc7 +#define MLXPLAT_CPLD_LPC_REG_WD_CLEAR_WP_OFFSET 0xc8 +#define MLXPLAT_CPLD_LPC_REG_WD1_TMR_OFFSET 0xc9 +#define MLXPLAT_CPLD_LPC_REG_WD1_ACT_OFFSET 0xcb +#define MLXPLAT_CPLD_LPC_REG_WD2_TMR_OFFSET 0xcd +#define MLXPLAT_CPLD_LPC_REG_WD2_TLEFT_OFFSET 0xce +#define MLXPLAT_CPLD_LPC_REG_WD2_ACT_OFFSET 0xcf +#define MLXPLAT_CPLD_LPC_REG_WD3_TMR_OFFSET 0xd1 +#define MLXPLAT_CPLD_LPC_REG_WD3_TLEFT_OFFSET 0xd2 +#define MLXPLAT_CPLD_LPC_REG_WD3_ACT_OFFSET 0xd3 #define MLXPLAT_CPLD_LPC_REG_PWM1_OFFSET 0xe3 #define MLXPLAT_CPLD_LPC_REG_TACHO1_OFFSET 0xe4 #define MLXPLAT_CPLD_LPC_REG_TACHO2_OFFSET 0xe5 @@ -72,6 +82,7 @@ #define MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET 0xf5 #define MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET 0xf6 #define MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET 0xf7 +#define MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET 0xf8 #define MLXPLAT_CPLD_LPC_IO_RANGE 0x100 #define MLXPLAT_CPLD_LPC_I2C_CH1_OFF 0xdb #define MLXPLAT_CPLD_LPC_I2C_CH2_OFF 0xda @@ -128,6 +139,18 @@ #define MLXPLAT_CPLD_FAN3_DEFAULT_NR 13 #define MLXPLAT_CPLD_FAN4_DEFAULT_NR 14 +/* Masks and default values for watchdogs */ +#define MLXPLAT_CPLD_WD1_CLEAR_MASK GENMASK(7, 1) +#define MLXPLAT_CPLD_WD2_CLEAR_MASK (GENMASK(7, 0) & ~BIT(1)) + +#define MLXPLAT_CPLD_WD_TYPE1_TO_MASK GENMASK(7, 4) +#define MLXPLAT_CPLD_WD_TYPE2_TO_MASK 0 +#define MLXPLAT_CPLD_WD_RESET_ACT_MASK GENMASK(7, 1) +#define MLXPLAT_CPLD_WD_FAN_ACT_MASK (GENMASK(7, 0) & ~BIT(4)) +#define MLXPLAT_CPLD_WD_COUNT_ACT_MASK (GENMASK(7, 0) & ~BIT(7)) +#define MLXPLAT_CPLD_WD_DFLT_TIMEOUT 30 +#define MLXPLAT_CPLD_WD_MAX_DEVS 2 + /* mlxplat_priv - platform private data * @pdev_i2c - i2c controller platform device * @pdev_mux - array of mux platform devices @@ -135,6 +158,7 @@ * @pdev_led - led platform devices * @pdev_io_regs - register access platform devices * @pdev_fan - FAN platform devices + * @pdev_wd - array of watchdog platform devices */ struct mlxplat_priv { struct platform_device *pdev_i2c; @@ -143,6 +167,7 @@ struct mlxplat_priv { struct platform_device *pdev_led; struct platform_device *pdev_io_regs; struct platform_device *pdev_fan; + struct platform_device *pdev_wd[MLXPLAT_CPLD_WD_MAX_DEVS]; }; /* Regions for LPC I2C controller and LPC base register space */ @@ -1339,6 +1364,10 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_fan_data[] = { .capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET, .bit = BIT(3), }, + { + .label = "conf", + .capability = MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET, + }, }; static struct mlxreg_core_platform_data mlxplat_default_fan_data = { @@ -1346,6 +1375,148 @@ static struct mlxreg_core_platform_data mlxplat_default_fan_data = { .counter = ARRAY_SIZE(mlxplat_mlxcpld_default_fan_data), }; +/* Watchdog type1: hardware implementation version1 + * (MSN2700, MSN2410, MSN2740, MSN2100 and MSN2140 systems). + */ +static struct mlxreg_core_data mlxplat_mlxcpld_wd_main_regs_type1[] = { + { + .label = "action", + .reg = MLXPLAT_CPLD_LPC_REG_WD1_ACT_OFFSET, + .mask = MLXPLAT_CPLD_WD_RESET_ACT_MASK, + .bit = 0, + }, + { + .label = "timeout", + .reg = MLXPLAT_CPLD_LPC_REG_WD1_TMR_OFFSET, + .mask = MLXPLAT_CPLD_WD_TYPE1_TO_MASK, + .health_cntr = MLXPLAT_CPLD_WD_DFLT_TIMEOUT, + }, + { + .label = "ping", + .reg = MLXPLAT_CPLD_LPC_REG_WD_CLEAR_OFFSET, + .mask = MLXPLAT_CPLD_WD1_CLEAR_MASK, + .bit = 0, + }, + { + .label = "reset", + .reg = MLXPLAT_CPLD_LPC_REG_RESET_CAUSE_OFFSET, + .mask = GENMASK(7, 0) & ~BIT(6), + .bit = 6, + }, +}; + +static struct mlxreg_core_data mlxplat_mlxcpld_wd_aux_regs_type1[] = { + { + .label = "action", + .reg = MLXPLAT_CPLD_LPC_REG_WD2_ACT_OFFSET, + .mask = MLXPLAT_CPLD_WD_FAN_ACT_MASK, + .bit = 4, + }, + { + .label = "timeout", + .reg = MLXPLAT_CPLD_LPC_REG_WD2_TMR_OFFSET, + .mask = MLXPLAT_CPLD_WD_TYPE1_TO_MASK, + .health_cntr = MLXPLAT_CPLD_WD_DFLT_TIMEOUT, + }, + { + .label = "ping", + .reg = MLXPLAT_CPLD_LPC_REG_WD_CLEAR_OFFSET, + .mask = MLXPLAT_CPLD_WD1_CLEAR_MASK, + .bit = 1, + }, +}; + +static struct mlxreg_core_platform_data mlxplat_mlxcpld_wd_set_type1[] = { + { + .data = mlxplat_mlxcpld_wd_main_regs_type1, + .counter = ARRAY_SIZE(mlxplat_mlxcpld_wd_main_regs_type1), + .version = MLX_WDT_TYPE1, + .identity = "mlx-wdt-main", + }, + { + .data = mlxplat_mlxcpld_wd_aux_regs_type1, + .counter = ARRAY_SIZE(mlxplat_mlxcpld_wd_aux_regs_type1), + .version = MLX_WDT_TYPE1, + .identity = "mlx-wdt-aux", + }, +}; + +/* Watchdog type2: hardware implementation version 2 + * (all systems except (MSN2700, MSN2410, MSN2740, MSN2100 and MSN2140). + */ +static struct mlxreg_core_data mlxplat_mlxcpld_wd_main_regs_type2[] = { + { + .label = "action", + .reg = MLXPLAT_CPLD_LPC_REG_WD2_ACT_OFFSET, + .mask = MLXPLAT_CPLD_WD_RESET_ACT_MASK, + .bit = 0, + }, + { + .label = "timeout", + .reg = MLXPLAT_CPLD_LPC_REG_WD2_TMR_OFFSET, + .mask = MLXPLAT_CPLD_WD_TYPE2_TO_MASK, + .health_cntr = MLXPLAT_CPLD_WD_DFLT_TIMEOUT, + }, + { + .label = "timeleft", + .reg = MLXPLAT_CPLD_LPC_REG_WD2_TLEFT_OFFSET, + .mask = MLXPLAT_CPLD_WD_TYPE2_TO_MASK, + }, + { + .label = "ping", + .reg = MLXPLAT_CPLD_LPC_REG_WD2_ACT_OFFSET, + .mask = MLXPLAT_CPLD_WD_RESET_ACT_MASK, + .bit = 0, + }, + { + .label = "reset", + .reg = MLXPLAT_CPLD_LPC_REG_RESET_CAUSE_OFFSET, + .mask = GENMASK(7, 0) & ~BIT(6), + .bit = 6, + }, +}; + +static struct mlxreg_core_data mlxplat_mlxcpld_wd_aux_regs_type2[] = { + { + .label = "action", + .reg = MLXPLAT_CPLD_LPC_REG_WD3_ACT_OFFSET, + .mask = MLXPLAT_CPLD_WD_FAN_ACT_MASK, + .bit = 4, + }, + { + .label = "timeout", + .reg = MLXPLAT_CPLD_LPC_REG_WD3_TMR_OFFSET, + .mask = MLXPLAT_CPLD_WD_TYPE2_TO_MASK, + .health_cntr = MLXPLAT_CPLD_WD_DFLT_TIMEOUT, + }, + { + .label = "timeleft", + .reg = MLXPLAT_CPLD_LPC_REG_WD3_TLEFT_OFFSET, + .mask = MLXPLAT_CPLD_WD_TYPE2_TO_MASK, + }, + { + .label = "ping", + .reg = MLXPLAT_CPLD_LPC_REG_WD3_ACT_OFFSET, + .mask = MLXPLAT_CPLD_WD_FAN_ACT_MASK, + .bit = 4, + }, +}; + +static struct mlxreg_core_platform_data mlxplat_mlxcpld_wd_set_type2[] = { + { + .data = mlxplat_mlxcpld_wd_main_regs_type2, + .counter = ARRAY_SIZE(mlxplat_mlxcpld_wd_main_regs_type2), + .version = MLX_WDT_TYPE2, + .identity = "mlx-wdt-main", + }, + { + .data = mlxplat_mlxcpld_wd_aux_regs_type2, + .counter = ARRAY_SIZE(mlxplat_mlxcpld_wd_aux_regs_type2), + .version = MLX_WDT_TYPE2, + .identity = "mlx-wdt-aux", + }, +}; + static bool mlxplat_mlxcpld_writeable_reg(struct device *dev, unsigned int reg) { switch (reg) { @@ -1368,6 +1539,14 @@ static bool mlxplat_mlxcpld_writeable_reg(struct device *dev, unsigned int reg) case MLXPLAT_CPLD_LPC_REG_PWR_MASK_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD_CLEAR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD_CLEAR_WP_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD1_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD1_ACT_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD2_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD2_ACT_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD3_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD3_ACT_OFFSET: case MLXPLAT_CPLD_LPC_REG_PWM1_OFFSET: case MLXPLAT_CPLD_LPC_REG_PWM_CONTROL_OFFSET: return true; @@ -1411,6 +1590,16 @@ static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg) case MLXPLAT_CPLD_LPC_REG_FAN_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD_CLEAR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD_CLEAR_WP_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD1_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD1_ACT_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD2_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD2_TLEFT_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD2_ACT_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD3_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD3_TLEFT_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD3_ACT_OFFSET: case MLXPLAT_CPLD_LPC_REG_PWM1_OFFSET: case MLXPLAT_CPLD_LPC_REG_TACHO1_OFFSET: case MLXPLAT_CPLD_LPC_REG_TACHO2_OFFSET: @@ -1428,6 +1617,7 @@ static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg) case MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET: + case MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET: return true; } return false; @@ -1467,6 +1657,10 @@ static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg) case MLXPLAT_CPLD_LPC_REG_FAN_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD2_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD2_TLEFT_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD3_TMR_OFFSET: + case MLXPLAT_CPLD_LPC_REG_WD3_TLEFT_OFFSET: case MLXPLAT_CPLD_LPC_REG_PWM1_OFFSET: case MLXPLAT_CPLD_LPC_REG_TACHO1_OFFSET: case MLXPLAT_CPLD_LPC_REG_TACHO2_OFFSET: @@ -1484,6 +1678,7 @@ static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg) case MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET: case MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET: + case MLXPLAT_CPLD_LPC_REG_TACHO_SPEED_OFFSET: return true; } return false; @@ -1493,6 +1688,7 @@ static const struct reg_default mlxplat_mlxcpld_regmap_default[] = { { MLXPLAT_CPLD_LPC_REG_WP1_OFFSET, 0x00 }, { MLXPLAT_CPLD_LPC_REG_WP2_OFFSET, 0x00 }, { MLXPLAT_CPLD_LPC_REG_PWM_CONTROL_OFFSET, 0x00 }, + { MLXPLAT_CPLD_LPC_REG_WD_CLEAR_WP_OFFSET, 0x00 }, }; struct mlxplat_mlxcpld_regmap_context { @@ -1542,6 +1738,8 @@ static struct mlxreg_core_hotplug_platform_data *mlxplat_hotplug; static struct mlxreg_core_platform_data *mlxplat_led; static struct mlxreg_core_platform_data *mlxplat_regs_io; static struct mlxreg_core_platform_data *mlxplat_fan; +static struct mlxreg_core_platform_data + *mlxplat_wd_data[MLXPLAT_CPLD_WD_MAX_DEVS]; static int __init mlxplat_dmi_default_matched(const struct dmi_system_id *dmi) { @@ -1557,6 +1755,7 @@ static int __init mlxplat_dmi_default_matched(const struct dmi_system_id *dmi) mlxplat_default_channels[i - 1][MLXPLAT_CPLD_GRP_CHNL_NUM - 1]; mlxplat_led = &mlxplat_default_led_data; mlxplat_regs_io = &mlxplat_default_regs_io_data; + mlxplat_wd_data[0] = &mlxplat_mlxcpld_wd_set_type1[0]; return 1; }; @@ -1575,6 +1774,7 @@ static int __init mlxplat_dmi_msn21xx_matched(const struct dmi_system_id *dmi) mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1]; mlxplat_led = &mlxplat_msn21xx_led_data; mlxplat_regs_io = &mlxplat_msn21xx_regs_io_data; + mlxplat_wd_data[0] = &mlxplat_mlxcpld_wd_set_type1[0]; return 1; }; @@ -1593,6 +1793,7 @@ static int __init mlxplat_dmi_msn274x_matched(const struct dmi_system_id *dmi) mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1]; mlxplat_led = &mlxplat_default_led_data; mlxplat_regs_io = &mlxplat_msn21xx_regs_io_data; + mlxplat_wd_data[0] = &mlxplat_mlxcpld_wd_set_type1[0]; return 1; }; @@ -1611,6 +1812,7 @@ static int __init mlxplat_dmi_msn201x_matched(const struct dmi_system_id *dmi) mlxplat_default_channels[i - 1][MLXPLAT_CPLD_GRP_CHNL_NUM - 1]; mlxplat_led = &mlxplat_msn21xx_led_data; mlxplat_regs_io = &mlxplat_msn21xx_regs_io_data; + mlxplat_wd_data[0] = &mlxplat_mlxcpld_wd_set_type1[0]; return 1; }; @@ -1630,6 +1832,8 @@ static int __init mlxplat_dmi_qmb7xx_matched(const struct dmi_system_id *dmi) mlxplat_led = &mlxplat_default_ng_led_data; mlxplat_regs_io = &mlxplat_default_ng_regs_io_data; mlxplat_fan = &mlxplat_default_fan_data; + for (i = 0; i < ARRAY_SIZE(mlxplat_mlxcpld_wd_set_type2); i++) + mlxplat_wd_data[i] = &mlxplat_mlxcpld_wd_set_type2[i]; return 1; }; @@ -1912,15 +2116,33 @@ static int __init mlxplat_init(void) } } + /* Add WD drivers. */ + for (j = 0; j < MLXPLAT_CPLD_WD_MAX_DEVS; j++) { + if (mlxplat_wd_data[j]) { + mlxplat_wd_data[j]->regmap = mlxplat_hotplug->regmap; + priv->pdev_wd[j] = platform_device_register_resndata( + &mlxplat_dev->dev, "mlx-wdt", + j, NULL, 0, + mlxplat_wd_data[j], + sizeof(*mlxplat_wd_data[j])); + if (IS_ERR(priv->pdev_wd[j])) { + err = PTR_ERR(priv->pdev_wd[j]); + goto fail_platform_wd_register; + } + } + } + /* Sync registers with hardware. */ regcache_mark_dirty(mlxplat_hotplug->regmap); err = regcache_sync(mlxplat_hotplug->regmap); if (err) - goto fail_platform_fan_register; + goto fail_platform_wd_register; return 0; -fail_platform_fan_register: +fail_platform_wd_register: + while (--j >= 0) + platform_device_unregister(priv->pdev_wd[j]); if (mlxplat_fan) platform_device_unregister(priv->pdev_fan); fail_platform_io_regs_register: @@ -1946,6 +2168,8 @@ static void __exit mlxplat_exit(void) struct mlxplat_priv *priv = platform_get_drvdata(mlxplat_dev); int i; + for (i = MLXPLAT_CPLD_WD_MAX_DEVS - 1; i >= 0 ; i--) + platform_device_unregister(priv->pdev_wd[i]); if (priv->pdev_fan) platform_device_unregister(priv->pdev_fan); if (priv->pdev_io_regs) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 4bfbfa3f78e6..2058445fc456 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -4424,14 +4424,16 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context) } return AE_OK; } + + case ACPI_RESOURCE_TYPE_END_TAG: + return AE_OK; + default: dprintk("Resource %d isn't an IRQ nor an IO port\n", resource->type); + return AE_CTRL_TERMINATE; - case ACPI_RESOURCE_TYPE_END_TAG: - return AE_OK; } - return AE_CTRL_TERMINATE; } static int sony_pic_possible_resources(struct acpi_device *device) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 726341f2b638..71cfaf26efd1 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -79,7 +79,7 @@ #include <linux/jiffies.h> #include <linux/workqueue.h> #include <linux/acpi.h> -#include <linux/pci_ids.h> +#include <linux/pci.h> #include <linux/power_supply.h> #include <sound/core.h> #include <sound/control.h> @@ -4212,7 +4212,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) known_ev = true; break; } - /* fallthrough to default */ + /* fallthrough - to default */ default: known_ev = false; } @@ -4501,6 +4501,74 @@ static void bluetooth_exit(void) bluetooth_shutdown(); } +static const struct dmi_system_id bt_fwbug_list[] __initconst = { + { + .ident = "ThinkPad E485", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "20KU"), + }, + }, + { + .ident = "ThinkPad E585", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "20KV"), + }, + }, + { + .ident = "ThinkPad A285 - 20MW", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "20MW"), + }, + }, + { + .ident = "ThinkPad A285 - 20MX", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "20MX"), + }, + }, + { + .ident = "ThinkPad A485 - 20MU", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "20MU"), + }, + }, + { + .ident = "ThinkPad A485 - 20MV", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "20MV"), + }, + }, + {} +}; + +static const struct pci_device_id fwbug_cards_ids[] __initconst = { + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2526) }, + {} +}; + + +static int __init have_bt_fwbug(void) +{ + /* + * Some AMD based ThinkPads have a firmware bug that calling + * "GBDC" will cause bluetooth on Intel wireless cards blocked + */ + if (dmi_check_system(bt_fwbug_list) && pci_dev_present(fwbug_cards_ids)) { + vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, + FW_BUG "disable bluetooth subdriver for Intel cards\n"); + return 1; + } else + return 0; +} + static int __init bluetooth_init(struct ibm_init_struct *iibm) { int res; @@ -4513,7 +4581,7 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm) /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ - tp_features.bluetooth = hkey_handle && + tp_features.bluetooth = !have_bt_fwbug() && hkey_handle && acpi_evalf(hkey_handle, &status, "GBDC", "qd"); vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, @@ -5808,7 +5876,7 @@ static int led_set_status(const unsigned int led, return -EPERM; if (!acpi_evalf(led_handle, NULL, NULL, "vdd", (1 << led), led_sled_arg1[ledstatus])) - rc = -EIO; + return -EIO; break; case TPACPI_LED_OLD: /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ @@ -5832,10 +5900,10 @@ static int led_set_status(const unsigned int led, return -EPERM; if (!acpi_evalf(led_handle, NULL, NULL, "vdd", led, led_led_arg1[ledstatus])) - rc = -EIO; + return -EIO; break; default: - rc = -ENXIO; + return -ENXIO; } if (!rc) @@ -6249,8 +6317,8 @@ static int thermal_get_sensor(int idx, s32 *value) t = TP_EC_THERMAL_TMP8; idx -= 8; } - /* fallthrough */ #endif + /* fallthrough */ case TPACPI_THERMAL_TPEC_8: if (idx <= 7) { if (!acpi_ec_read(t + idx, &tmp)) @@ -9890,6 +9958,37 @@ invalid: return '\0'; } +static void find_new_ec_fwstr(const struct dmi_header *dm, void *private) +{ + char *ec_fw_string = (char *) private; + const char *dmi_data = (const char *)dm; + /* + * ThinkPad Embedded Controller Program Table on newer models + * + * Offset | Name | Width | Description + * ---------------------------------------------------- + * 0x00 | Type | BYTE | 0x8C + * 0x01 | Length | BYTE | + * 0x02 | Handle | WORD | Varies + * 0x04 | Signature | BYTEx6 | ASCII for "LENOVO" + * 0x0A | OEM struct offset | BYTE | 0x0B + * 0x0B | OEM struct number | BYTE | 0x07, for this structure + * 0x0C | OEM struct revision | BYTE | 0x01, for this format + * 0x0D | ECP version ID | STR ID | + * 0x0E | ECP release date | STR ID | + */ + + /* Return if data structure not match */ + if (dm->type != 140 || dm->length < 0x0F || + memcmp(dmi_data + 4, "LENOVO", 6) != 0 || + dmi_data[0x0A] != 0x0B || dmi_data[0x0B] != 0x07 || + dmi_data[0x0C] != 0x01) + return; + + /* fwstr is the first 8byte string */ + strncpy(ec_fw_string, dmi_data + 0x0F, 8); +} + /* returns 0 - probe ok, or < 0 - probe error. * Probe ok doesn't mean thinkpad found. * On error, kfree() cleanup on tp->* is not performed, caller must do it */ @@ -9897,7 +9996,7 @@ static int __must_check __init get_thinkpad_model_data( struct thinkpad_id_data *tp) { const struct dmi_device *dev = NULL; - char ec_fw_string[18]; + char ec_fw_string[18] = {0}; char const *s; char t; @@ -9937,20 +10036,25 @@ static int __must_check __init get_thinkpad_model_data( ec_fw_string) == 1) { ec_fw_string[sizeof(ec_fw_string) - 1] = 0; ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; + break; + } + } - tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); - if (!tp->ec_version_str) - return -ENOMEM; + /* Newer ThinkPads have different EC program info table */ + if (!ec_fw_string[0]) + dmi_walk(find_new_ec_fwstr, &ec_fw_string); - t = tpacpi_parse_fw_id(ec_fw_string, - &tp->ec_model, &tp->ec_release); - if (t != 'H') { - pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n", - ec_fw_string); - pr_notice("please report this to %s\n", - TPACPI_MAIL); - } - break; + if (ec_fw_string[0]) { + tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); + if (!tp->ec_version_str) + return -ENOMEM; + + t = tpacpi_parse_fw_id(ec_fw_string, + &tp->ec_model, &tp->ec_release); + if (t != 'H') { + pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n", + ec_fw_string); + pr_notice("please report this to %s\n", TPACPI_MAIL); } } @@ -10165,7 +10269,7 @@ MODULE_PARM_DESC(volume_mode, module_param_named(volume_capabilities, volume_capabilities, uint, 0444); MODULE_PARM_DESC(volume_capabilities, - "Selects the mixer capabilites: 0=auto, 1=volume and mute, 2=mute only"); + "Selects the mixer capabilities: 0=auto, 1=volume and mute, 2=mute only"); module_param_named(volume_control, volume_control_allowed, bool, 0444); MODULE_PARM_DESC(volume_control, diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c index 2d56ff7c8230..bd0856d2e825 100644 --- a/drivers/platform/x86/touchscreen_dmi.c +++ b/drivers/platform/x86/touchscreen_dmi.c @@ -249,6 +249,21 @@ static const struct ts_dmi_data jumper_ezpad_6_pro_data = { .properties = jumper_ezpad_6_pro_props, }; +static const struct property_entry jumper_ezpad_6_pro_b_props[] = { + PROPERTY_ENTRY_U32("touchscreen-size-x", 1980), + PROPERTY_ENTRY_U32("touchscreen-size-y", 1500), + PROPERTY_ENTRY_STRING("firmware-name", "gsl3692-jumper-ezpad-6-pro-b.fw"), + PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"), + PROPERTY_ENTRY_U32("silead,max-fingers", 10), + PROPERTY_ENTRY_BOOL("silead,home-button"), + { } +}; + +static const struct ts_dmi_data jumper_ezpad_6_pro_b_data = { + .acpi_name = "MSSL1680:00", + .properties = jumper_ezpad_6_pro_b_props, +}; + static const struct property_entry jumper_ezpad_mini3_props[] = { PROPERTY_ENTRY_U32("touchscreen-min-x", 23), PROPERTY_ENTRY_U32("touchscreen-min-y", 16), @@ -265,6 +280,23 @@ static const struct ts_dmi_data jumper_ezpad_mini3_data = { .properties = jumper_ezpad_mini3_props, }; +static const struct property_entry myria_my8307_props[] = { + PROPERTY_ENTRY_U32("touchscreen-size-x", 1720), + PROPERTY_ENTRY_U32("touchscreen-size-y", 1140), + PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"), + PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"), + PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"), + PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-myria-my8307.fw"), + PROPERTY_ENTRY_U32("silead,max-fingers", 10), + PROPERTY_ENTRY_BOOL("silead,home-button"), + { } +}; + +static const struct ts_dmi_data myria_my8307_data = { + .acpi_name = "MSSL1680:00", + .properties = myria_my8307_props, +}; + static const struct property_entry onda_obook_20_plus_props[] = { PROPERTY_ENTRY_U32("touchscreen-size-x", 1728), PROPERTY_ENTRY_U32("touchscreen-size-y", 1148), @@ -674,6 +706,17 @@ static const struct dmi_system_id touchscreen_dmi_table[] = { }, }, { + /* Jumper EZpad 6 Pro B */ + .driver_data = (void *)&jumper_ezpad_6_pro_b_data, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Jumper"), + DMI_MATCH(DMI_PRODUCT_NAME, "EZpad"), + DMI_MATCH(DMI_BIOS_VERSION, "5.12"), + /* Above matches are too generic, add bios-date match */ + DMI_MATCH(DMI_BIOS_DATE, "04/24/2018"), + }, + }, + { /* Jumper EZpad mini3 */ .driver_data = (void *)&jumper_ezpad_mini3_data, .matches = { @@ -691,6 +734,14 @@ static const struct dmi_system_id touchscreen_dmi_table[] = { }, }, { + /* Myria MY8307 */ + .driver_data = (void *)&myria_my8307_data, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Complet Electro Serv"), + DMI_MATCH(DMI_PRODUCT_NAME, "MY8307"), + }, + }, + { /* Onda oBook 20 Plus */ .driver_data = (void *)&onda_obook_20_plus_data, .matches = { |