# Makefile - Intel MIC Linux driver.
# Copyright(c) 2013, Intel Corporation.
#
-obj-$(CONFIG_INTEL_MIC_HOST) += host/
-obj-$(CONFIG_INTEL_MIC_CARD) += card/
obj-y += bus/
obj-$(CONFIG_SCIF) += scif/
obj-$(CONFIG_INTEL_MIC_HOST) += mic_host.o
mic_host-objs := mic_main.o
mic_host-objs += mic_x100.o
-mic_host-objs += mic_sysfs.o
mic_host-objs += mic_smpt.o
mic_host-objs += mic_intr.o
mic_host-objs += mic_boot.o
#include <linux/firmware.h>
#include <linux/pci.h>
#include <linux/kmod.h>
-
#include <linux/mic_common.h>
#include <linux/mic_bus.h>
+#include "../bus/scif_bus.h"
#include "../common/mic_dev.h"
#include "mic_device.h"
#include "mic_smpt.h"
int i, j, ret;
dma_addr_t da;
- ret = dma_map_sg(mdev->sdev->parent, sg, nents, dir);
+ ret = dma_map_sg(&mdev->pdev->dev, sg, nents, dir);
if (ret <= 0)
return 0;
mic_unmap(mdev, sg_dma_address(s), s->length);
sg_dma_address(s) = mic_to_dma_addr(mdev, sg_dma_address(s));
}
- dma_unmap_sg(mdev->sdev->parent, sg, nents, dir);
+ dma_unmap_sg(&mdev->pdev->dev, sg, nents, dir);
return 0;
}
mic_unmap(mdev, sg_dma_address(s), s->length);
sg_dma_address(s) = da;
}
- dma_unmap_sg(mdev->sdev->parent, sg, nents, dir);
+ dma_unmap_sg(&mdev->pdev->dev, sg, nents, dir);
}
static struct dma_map_ops __mic_dma_ops = {
.ack_interrupt = _mic_ack_interrupt,
};
-/**
- * mic_reset - Reset the MIC device.
- * @mdev: pointer to mic_device instance
- */
-static void mic_reset(struct mic_device *mdev)
-{
- int i;
-
-#define MIC_RESET_TO (45)
-
- reinit_completion(&mdev->reset_wait);
- mdev->ops->reset_fw_ready(mdev);
- mdev->ops->reset(mdev);
-
- for (i = 0; i < MIC_RESET_TO; i++) {
- if (mdev->ops->is_fw_ready(mdev))
- goto done;
- /*
- * Resets typically take 10s of seconds to complete.
- * Since an MMIO read is required to check if the
- * firmware is ready or not, a 1 second delay works nicely.
- */
- msleep(1000);
- }
- mic_set_state(mdev, MIC_RESET_FAILED);
-done:
- complete_all(&mdev->reset_wait);
-}
-
/* Initialize the MIC bootparams */
void mic_bootparam_init(struct mic_device *mdev)
{
struct mic_bootparam *bootparam = mdev->dp;
bootparam->magic = cpu_to_le32(MIC_MAGIC);
- bootparam->c2h_shutdown_db = mdev->shutdown_db;
- bootparam->h2c_shutdown_db = -1;
bootparam->h2c_config_db = -1;
- bootparam->shutdown_status = 0;
- bootparam->shutdown_card = 0;
- /* Total nodes = number of MICs + 1 for self node */
- bootparam->tot_nodes = atomic_read(&g_num_mics) + 1;
bootparam->node_id = mdev->id + 1;
bootparam->scif_host_dma_addr = 0x0;
bootparam->scif_card_dma_addr = 0x0;
bootparam->h2c_scif_db = -1;
}
+static inline struct mic_device *cosmdev_to_mdev(struct cosm_device *cdev)
+{
+ return dev_get_drvdata(cdev->dev.parent);
+}
+
+static void _mic_reset(struct cosm_device *cdev)
+{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+
+ mdev->ops->reset_fw_ready(mdev);
+ mdev->ops->reset(mdev);
+}
+
+static bool _mic_ready(struct cosm_device *cdev)
+{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+
+ return mdev->ops->is_fw_ready(mdev);
+}
+
/**
* mic_request_dma_chans - Request DMA channels
* @mdev: pointer to mic_device instance
do {
chan = dma_request_channel(mask, mdev->ops->dma_filter,
- mdev->sdev->parent);
+ &mdev->pdev->dev);
if (chan) {
mdev->dma_ch[mdev->num_dma_ch++] = chan;
if (mdev->num_dma_ch >= MIC_MAX_DMA_CHAN)
break;
}
} while (chan);
- dev_info(mdev->sdev->parent, "DMA channels # %d\n", mdev->num_dma_ch);
+ dev_info(&mdev->pdev->dev, "DMA channels # %d\n", mdev->num_dma_ch);
return mdev->num_dma_ch;
}
}
/**
- * mic_start - Start the MIC.
- * @mdev: pointer to mic_device instance
- * @buf: buffer containing boot string including firmware/ramdisk path.
+ * _mic_start - Start the MIC.
+ * @cdev: pointer to cosm_device instance
+ * @id: MIC device id/index provided by COSM used in other drivers like SCIF
*
* This function prepares an MIC for boot and initiates boot.
* RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ *
+ * For all cosm_hw_ops the caller holds a mutex to ensure serialization.
*/
-int mic_start(struct mic_device *mdev, const char *buf)
+static int _mic_start(struct cosm_device *cdev, int id)
{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
int rc;
- mutex_lock(&mdev->mic_mutex);
+
mic_bootparam_init(mdev);
-retry:
- if (MIC_OFFLINE != mdev->state) {
- rc = -EINVAL;
- goto unlock_ret;
- }
- if (!mdev->ops->is_fw_ready(mdev)) {
- mic_reset(mdev);
- /*
- * The state will either be MIC_OFFLINE if the reset succeeded
- * or MIC_RESET_FAILED if the firmware reset failed.
- */
- goto retry;
- }
- mdev->dma_mbdev = mbus_register_device(mdev->sdev->parent,
+ mdev->dma_mbdev = mbus_register_device(&mdev->pdev->dev,
MBUS_DEV_DMA_HOST, &mic_dma_ops,
- &mbus_hw_ops, mdev->mmio.va);
+ &mbus_hw_ops, id, mdev->mmio.va);
if (IS_ERR(mdev->dma_mbdev)) {
rc = PTR_ERR(mdev->dma_mbdev);
goto unlock_ret;
rc = -ENODEV;
goto dma_remove;
}
- mdev->scdev = scif_register_device(mdev->sdev->parent, MIC_SCIF_DEV,
+ mdev->scdev = scif_register_device(&mdev->pdev->dev, MIC_SCIF_DEV,
&__mic_dma_ops, &scif_hw_ops,
- mdev->id + 1, 0, &mdev->mmio,
+ id + 1, 0, &mdev->mmio,
&mdev->aper, mdev->dp, NULL,
- mdev->dma_ch, mdev->num_dma_ch);
+ mdev->dma_ch, mdev->num_dma_ch,
+ true);
if (IS_ERR(mdev->scdev)) {
rc = PTR_ERR(mdev->scdev);
goto dma_free;
}
- rc = mdev->ops->load_mic_fw(mdev, buf);
+
+ rc = mdev->ops->load_mic_fw(mdev, NULL);
if (rc)
goto scif_remove;
mic_smpt_restore(mdev);
mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr);
mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32);
mdev->ops->send_firmware_intr(mdev);
- mic_set_state(mdev, MIC_ONLINE);
goto unlock_ret;
scif_remove:
scif_unregister_device(mdev->scdev);
dma_remove:
mbus_unregister_device(mdev->dma_mbdev);
unlock_ret:
- mutex_unlock(&mdev->mic_mutex);
return rc;
}
/**
- * mic_stop - Prepare the MIC for reset and trigger reset.
- * @mdev: pointer to mic_device instance
+ * _mic_stop - Prepare the MIC for reset and trigger reset.
+ * @cdev: pointer to cosm_device instance
* @force: force a MIC to reset even if it is already offline.
*
* RETURNS: None.
*/
-void mic_stop(struct mic_device *mdev, bool force)
-{
- mutex_lock(&mdev->mic_mutex);
- if (MIC_OFFLINE != mdev->state || force) {
- scif_unregister_device(mdev->scdev);
- mic_virtio_reset_devices(mdev);
- mic_free_dma_chans(mdev);
- mbus_unregister_device(mdev->dma_mbdev);
- mic_bootparam_init(mdev);
- mic_reset(mdev);
- if (MIC_RESET_FAILED == mdev->state)
- goto unlock;
- mic_set_shutdown_status(mdev, MIC_NOP);
- if (MIC_SUSPENDED != mdev->state)
- mic_set_state(mdev, MIC_OFFLINE);
- }
-unlock:
- mutex_unlock(&mdev->mic_mutex);
-}
-
-/**
- * mic_shutdown - Initiate MIC shutdown.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_shutdown(struct mic_device *mdev)
+static void _mic_stop(struct cosm_device *cdev, bool force)
{
- struct mic_bootparam *bootparam = mdev->dp;
- s8 db = bootparam->h2c_shutdown_db;
-
- mutex_lock(&mdev->mic_mutex);
- if (MIC_ONLINE == mdev->state && db != -1) {
- bootparam->shutdown_card = 1;
- mdev->ops->send_intr(mdev, db);
- mic_set_state(mdev, MIC_SHUTTING_DOWN);
- }
- mutex_unlock(&mdev->mic_mutex);
-}
-
-/**
- * mic_shutdown_work - Handle shutdown interrupt from MIC.
- * @work: The work structure.
- *
- * This work is scheduled whenever the host has received a shutdown
- * interrupt from the MIC.
- */
-void mic_shutdown_work(struct work_struct *work)
-{
- struct mic_device *mdev = container_of(work, struct mic_device,
- shutdown_work);
- struct mic_bootparam *bootparam = mdev->dp;
-
- mutex_lock(&mdev->mic_mutex);
- mic_set_shutdown_status(mdev, bootparam->shutdown_status);
- bootparam->shutdown_status = 0;
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
/*
- * if state is MIC_SUSPENDED, OSPM suspend is in progress. We do not
- * change the state here so as to prevent users from booting the card
- * during and after the suspend operation.
+ * Since SCIF handles card shutdown and reset (using COSM), it will
+ * will be the first to be registered and the last to be
+ * unregistered.
*/
- if (MIC_SHUTTING_DOWN != mdev->state &&
- MIC_SUSPENDED != mdev->state)
- mic_set_state(mdev, MIC_SHUTTING_DOWN);
- mutex_unlock(&mdev->mic_mutex);
+ mic_virtio_reset_devices(mdev);
+ scif_unregister_device(mdev->scdev);
+ mic_free_dma_chans(mdev);
+ mbus_unregister_device(mdev->dma_mbdev);
+ mic_bootparam_init(mdev);
}
-/**
- * mic_reset_trigger_work - Trigger MIC reset.
- * @work: The work structure.
- *
- * This work is scheduled whenever the host wants to reset the MIC.
- */
-void mic_reset_trigger_work(struct work_struct *work)
+static ssize_t _mic_family(struct cosm_device *cdev, char *buf)
{
- struct mic_device *mdev = container_of(work, struct mic_device,
- reset_trigger_work);
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+ static const char *family[MIC_FAMILY_LAST] = { "x100", "Unknown" };
- mic_stop(mdev, false);
+ return scnprintf(buf, PAGE_SIZE, "%s\n", family[mdev->family]);
}
-/**
- * mic_complete_resume - Complete MIC Resume after an OSPM suspend/hibernate
- * event.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_complete_resume(struct mic_device *mdev)
+static ssize_t _mic_stepping(struct cosm_device *cdev, char *buf)
{
- if (mdev->state != MIC_SUSPENDED) {
- dev_warn(mdev->sdev->parent, "state %d should be %d\n",
- mdev->state, MIC_SUSPENDED);
- return;
- }
-
- /* Make sure firmware is ready */
- if (!mdev->ops->is_fw_ready(mdev))
- mic_stop(mdev, true);
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+ const char *string = "??";
- mutex_lock(&mdev->mic_mutex);
- mic_set_state(mdev, MIC_OFFLINE);
- mutex_unlock(&mdev->mic_mutex);
-}
-
-/**
- * mic_prepare_suspend - Handle suspend notification for the MIC device.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_prepare_suspend(struct mic_device *mdev)
-{
- unsigned long timeout;
-
-#define MIC_SUSPEND_TIMEOUT (60 * HZ)
-
- mutex_lock(&mdev->mic_mutex);
- switch (mdev->state) {
- case MIC_OFFLINE:
- /*
- * Card is already offline. Set state to MIC_SUSPENDED
- * to prevent users from booting the card.
- */
- mic_set_state(mdev, MIC_SUSPENDED);
- mutex_unlock(&mdev->mic_mutex);
+ switch (mdev->stepping) {
+ case MIC_A0_STEP:
+ string = "A0";
break;
- case MIC_ONLINE:
- /*
- * Card is online. Set state to MIC_SUSPENDING and notify
- * MIC user space daemon which will issue card
- * shutdown and reset.
- */
- mic_set_state(mdev, MIC_SUSPENDING);
- mutex_unlock(&mdev->mic_mutex);
- timeout = wait_for_completion_timeout(&mdev->reset_wait,
- MIC_SUSPEND_TIMEOUT);
- /* Force reset the card if the shutdown completion timed out */
- if (!timeout) {
- mutex_lock(&mdev->mic_mutex);
- mic_set_state(mdev, MIC_SUSPENDED);
- mutex_unlock(&mdev->mic_mutex);
- mic_stop(mdev, true);
- }
+ case MIC_B0_STEP:
+ string = "B0";
+ break;
+ case MIC_B1_STEP:
+ string = "B1";
break;
- case MIC_SHUTTING_DOWN:
- /*
- * Card is shutting down. Set state to MIC_SUSPENDED
- * to prevent further boot of the card.
- */
- mic_set_state(mdev, MIC_SUSPENDED);
- mutex_unlock(&mdev->mic_mutex);
- timeout = wait_for_completion_timeout(&mdev->reset_wait,
- MIC_SUSPEND_TIMEOUT);
- /* Force reset the card if the shutdown completion timed out */
- if (!timeout)
- mic_stop(mdev, true);
+ case MIC_C0_STEP:
+ string = "C0";
break;
default:
- mutex_unlock(&mdev->mic_mutex);
break;
}
+ return scnprintf(buf, PAGE_SIZE, "%s\n", string);
}
-/**
- * mic_suspend - Initiate MIC suspend. Suspend merely issues card shutdown.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_suspend(struct mic_device *mdev)
+static struct mic_mw *_mic_aper(struct cosm_device *cdev)
{
- struct mic_bootparam *bootparam = mdev->dp;
- s8 db = bootparam->h2c_shutdown_db;
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
- mutex_lock(&mdev->mic_mutex);
- if (MIC_SUSPENDING == mdev->state && db != -1) {
- bootparam->shutdown_card = 1;
- mdev->ops->send_intr(mdev, db);
- mic_set_state(mdev, MIC_SUSPENDED);
- }
- mutex_unlock(&mdev->mic_mutex);
+ return &mdev->aper;
}
+
+struct cosm_hw_ops cosm_hw_ops = {
+ .reset = _mic_reset,
+ .force_reset = _mic_reset,
+ .post_reset = NULL,
+ .ready = _mic_ready,
+ .start = _mic_start,
+ .stop = _mic_stop,
+ .family = _mic_family,
+ .stepping = _mic_stepping,
+ .aper = _mic_aper,
+};
/* Debugfs parent dir */
static struct dentry *mic_dbg;
-/**
- * mic_log_buf_show - Display MIC kernel log buffer.
- *
- * log_buf addr/len is read from System.map by user space
- * and populated in sysfs entries.
- */
-static int mic_log_buf_show(struct seq_file *s, void *unused)
-{
- void __iomem *log_buf_va;
- int __iomem *log_buf_len_va;
- struct mic_device *mdev = s->private;
- void *kva;
- int size;
- unsigned long aper_offset;
-
- if (!mdev || !mdev->log_buf_addr || !mdev->log_buf_len)
- goto done;
- /*
- * Card kernel will never be relocated and any kernel text/data mapping
- * can be translated to phys address by subtracting __START_KERNEL_map.
- */
- aper_offset = (unsigned long)mdev->log_buf_len - __START_KERNEL_map;
- log_buf_len_va = mdev->aper.va + aper_offset;
- aper_offset = (unsigned long)mdev->log_buf_addr - __START_KERNEL_map;
- log_buf_va = mdev->aper.va + aper_offset;
- size = ioread32(log_buf_len_va);
-
- kva = kmalloc(size, GFP_KERNEL);
- if (!kva)
- goto done;
- mutex_lock(&mdev->mic_mutex);
- memcpy_fromio(kva, log_buf_va, size);
- switch (mdev->state) {
- case MIC_ONLINE:
- /* Fall through */
- case MIC_SHUTTING_DOWN:
- seq_write(s, kva, size);
- break;
- default:
- break;
- }
- mutex_unlock(&mdev->mic_mutex);
- kfree(kva);
-done:
- return 0;
-}
-
-static int mic_log_buf_open(struct inode *inode, struct file *file)
-{
- return single_open(file, mic_log_buf_show, inode->i_private);
-}
-
-static int mic_log_buf_release(struct inode *inode, struct file *file)
-{
- return single_release(inode, file);
-}
-
-static const struct file_operations log_buf_ops = {
- .owner = THIS_MODULE,
- .open = mic_log_buf_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = mic_log_buf_release
-};
-
static int mic_smpt_show(struct seq_file *s, void *pos)
{
int i;
.release = mic_smpt_debug_release
};
-static int mic_soft_reset_show(struct seq_file *s, void *pos)
-{
- struct mic_device *mdev = s->private;
-
- mic_stop(mdev, true);
- return 0;
-}
-
-static int mic_soft_reset_debug_open(struct inode *inode, struct file *file)
-{
- return single_open(file, mic_soft_reset_show, inode->i_private);
-}
-
-static int mic_soft_reset_debug_release(struct inode *inode, struct file *file)
-{
- return single_release(inode, file);
-}
-
-static const struct file_operations soft_reset_ops = {
- .owner = THIS_MODULE,
- .open = mic_soft_reset_debug_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = mic_soft_reset_debug_release
-};
-
static int mic_post_code_show(struct seq_file *s, void *pos)
{
struct mic_device *mdev = s->private;
seq_printf(s, "Bootparam: magic 0x%x\n",
bootparam->magic);
- seq_printf(s, "Bootparam: h2c_shutdown_db %d\n",
- bootparam->h2c_shutdown_db);
seq_printf(s, "Bootparam: h2c_config_db %d\n",
bootparam->h2c_config_db);
- seq_printf(s, "Bootparam: c2h_shutdown_db %d\n",
- bootparam->c2h_shutdown_db);
- seq_printf(s, "Bootparam: shutdown_status %d\n",
- bootparam->shutdown_status);
- seq_printf(s, "Bootparam: shutdown_card %d\n",
- bootparam->shutdown_card);
- seq_printf(s, "Bootparam: tot_nodes %d\n",
- bootparam->tot_nodes);
seq_printf(s, "Bootparam: node_id %d\n",
bootparam->node_id);
seq_printf(s, "Bootparam: c2h_scif_db %d\n",
int i, j;
u16 entry;
u16 vector;
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
if (pci_dev_msi_enabled(pdev)) {
for (i = 0; i < mdev->irq_info.num_vectors; i++) {
*/
void mic_create_debug_dir(struct mic_device *mdev)
{
+ char name[16];
+
if (!mic_dbg)
return;
- mdev->dbg_dir = debugfs_create_dir(dev_name(mdev->sdev), mic_dbg);
+ scnprintf(name, sizeof(name), "mic%d", mdev->id);
+ mdev->dbg_dir = debugfs_create_dir(name, mic_dbg);
if (!mdev->dbg_dir)
return;
- debugfs_create_file("log_buf", 0444, mdev->dbg_dir, mdev, &log_buf_ops);
-
debugfs_create_file("smpt", 0444, mdev->dbg_dir, mdev, &smpt_file_ops);
- debugfs_create_file("soft_reset", 0444, mdev->dbg_dir, mdev,
- &soft_reset_ops);
-
debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev,
&post_code_ops);
#include <linux/notifier.h>
#include <linux/irqreturn.h>
#include <linux/dmaengine.h>
+#include <linux/miscdevice.h>
#include <linux/mic_bus.h>
#include "../bus/scif_bus.h"
+#include "../bus/cosm_bus.h"
#include "mic_intr.h"
-/* The maximum number of MIC devices supported in a single host system. */
-#define MIC_MAX_NUM_DEVS 256
-
-/**
- * enum mic_hw_family - The hardware family to which a device belongs.
- */
-enum mic_hw_family {
- MIC_FAMILY_X100 = 0,
- MIC_FAMILY_UNKNOWN
-};
-
/**
* enum mic_stepping - MIC stepping ids.
*/
MIC_C0_STEP = 0x20,
};
+extern struct cosm_hw_ops cosm_hw_ops;
+
/**
* struct mic_device - MIC device information for each card.
*
* @ops: MIC HW specific operations.
* @id: The unique device id for this MIC device.
* @stepping: Stepping ID.
- * @attr_group: Pointer to list of sysfs attribute groups.
- * @sdev: Device for sysfs entries.
+ * @pdev: Underlying PCI device.
* @mic_mutex: Mutex for synchronizing access to mic_device.
* @intr_ops: HW specific interrupt operations.
* @smpt_ops: Hardware specific SMPT operations.
* @intr_info: H/W specific interrupt information.
* @irq_info: The OS specific irq information
* @dbg_dir: debugfs directory of this MIC device.
- * @cmdline: Kernel command line.
- * @firmware: Firmware file name.
- * @ramdisk: Ramdisk file name.
- * @bootmode: Boot mode i.e. "linux" or "elf" for flash updates.
* @bootaddr: MIC boot address.
- * @reset_trigger_work: Work for triggering reset requests.
- * @shutdown_work: Work for handling shutdown interrupts.
- * @state: MIC state.
- * @shutdown_status: MIC status reported by card for shutdown/crashes.
- * @state_sysfs: Sysfs dirent for notifying ring 3 about MIC state changes.
- * @reset_wait: Waitqueue for sleeping while reset completes.
- * @log_buf_addr: Log buffer address for MIC.
- * @log_buf_len: Log buffer length address for MIC.
* @dp: virtio device page
* @dp_dma_addr: virtio device page DMA address.
- * @shutdown_db: shutdown doorbell.
- * @shutdown_cookie: shutdown cookie.
- * @cdev: Character device for MIC.
+ * @name: name for the misc char device
+ * @miscdev: registered misc char device
* @vdev_list: list of virtio devices.
- * @pm_notifier: Handles PM notifications from the OS.
* @dma_mbdev: MIC BUS DMA device.
* @dma_ch - Array of DMA channels
* @num_dma_ch - Number of DMA channels available
* @scdev: SCIF device on the SCIF virtual bus.
+ * @cosm_dev: COSM device
*/
struct mic_device {
struct mic_mw mmio;
struct mic_hw_ops *ops;
int id;
enum mic_stepping stepping;
- const struct attribute_group **attr_group;
- struct device *sdev;
+ struct pci_dev *pdev;
struct mutex mic_mutex;
struct mic_hw_intr_ops *intr_ops;
struct mic_smpt_ops *smpt_ops;
struct mic_intr_info *intr_info;
struct mic_irq_info irq_info;
struct dentry *dbg_dir;
- char *cmdline;
- char *firmware;
- char *ramdisk;
- char *bootmode;
u32 bootaddr;
- struct work_struct reset_trigger_work;
- struct work_struct shutdown_work;
- u8 state;
- u8 shutdown_status;
- struct kernfs_node *state_sysfs;
- struct completion reset_wait;
- void *log_buf_addr;
- int *log_buf_len;
void *dp;
dma_addr_t dp_dma_addr;
- int shutdown_db;
- struct mic_irq *shutdown_cookie;
- struct cdev cdev;
+ char name[16];
+ struct miscdevice miscdev;
struct list_head vdev_list;
- struct notifier_block pm_notifier;
struct mbus_device *dma_mbdev;
struct dma_chan *dma_ch[MIC_MAX_DMA_CHAN];
int num_dma_ch;
struct scif_hw_dev *scdev;
+ struct cosm_device *cosm_dev;
};
/**
iowrite32(val, mw->va + offset);
}
-static inline struct dma_chan *mic_request_dma_chan(struct mic_device *mdev)
-{
- dma_cap_mask_t mask;
- struct dma_chan *chan;
-
- dma_cap_zero(mask);
- dma_cap_set(DMA_MEMCPY, mask);
- chan = dma_request_channel(mask, mdev->ops->dma_filter,
- mdev->sdev->parent);
- if (chan)
- return chan;
- dev_err(mdev->sdev->parent, "%s %d unable to acquire channel\n",
- __func__, __LINE__);
- return NULL;
-}
-
-void mic_sysfs_init(struct mic_device *mdev);
-int mic_start(struct mic_device *mdev, const char *buf);
-void mic_stop(struct mic_device *mdev, bool force);
-void mic_shutdown(struct mic_device *mdev);
-void mic_reset_delayed_work(struct work_struct *work);
-void mic_reset_trigger_work(struct work_struct *work);
-void mic_shutdown_work(struct work_struct *work);
void mic_bootparam_init(struct mic_device *mdev);
-void mic_set_state(struct mic_device *mdev, u8 state);
-void mic_set_shutdown_status(struct mic_device *mdev, u8 status);
void mic_create_debug_dir(struct mic_device *dev);
void mic_delete_debug_dir(struct mic_device *dev);
void __init mic_init_debugfs(void);
void mic_exit_debugfs(void);
-void mic_prepare_suspend(struct mic_device *mdev);
-void mic_complete_resume(struct mic_device *mdev);
-void mic_suspend(struct mic_device *mdev);
-extern atomic_t g_num_mics;
#endif
int mic_open(struct inode *inode, struct file *f)
{
struct mic_vdev *mvdev;
- struct mic_device *mdev = container_of(inode->i_cdev,
- struct mic_device, cdev);
+ struct mic_device *mdev = container_of(f->private_data,
+ struct mic_device, miscdev);
mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL);
if (!mvdev)
struct mic_intr_info *intr_info = mdev->intr_info;
struct mic_irq_info *irq_info = &mdev->irq_info;
struct mic_intr_cb *intr_cb;
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
int i;
spin_lock(&irq_info->mic_thread_lock);
struct mic_intr_info *intr_info = mdev->intr_info;
struct mic_irq_info *irq_info = &mdev->irq_info;
struct mic_intr_cb *intr_cb;
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
u32 mask;
int i;
/* Return the interrupt offset from the index. Index is 0 based. */
static u16 mic_map_src_to_offset(struct mic_device *mdev,
- int intr_src, enum mic_intr_type type)
+ int intr_src, enum mic_intr_type type)
{
if (type >= MIC_NUM_INTR_TYPES)
return MIC_NUM_OFFSETS;
mdev->irq_info.msix_entries[i].entry = i;
rc = pci_enable_msix_exact(pdev, mdev->irq_info.msix_entries,
- MIC_MIN_MSIX);
+ MIC_MIN_MSIX);
if (rc) {
dev_dbg(&pdev->dev, "Error enabling MSIx. rc = %d\n", rc);
goto err_enable_msix;
goto err_nomem2;
}
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"%d MSIx irqs setup\n", mdev->irq_info.num_vectors);
return 0;
err_nomem2:
spin_lock(&mdev->irq_info.mic_thread_lock);
spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags);
for (i = 0; i < MIC_NUM_OFFSETS; i++) {
-
if (list_empty(&mdev->irq_info.cb_list[i]))
break;
unsigned long cookie = 0;
u16 entry;
struct mic_intr_cb *intr_cb;
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
offset = mic_map_src_to_offset(mdev, intr_src, type);
if (offset >= MIC_NUM_OFFSETS) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"Error mapping index %d to a valid source id.\n",
intr_src);
rc = -EINVAL;
if (mdev->irq_info.num_vectors > 1) {
msix = mic_get_available_vector(mdev);
if (!msix) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"No MSIx vectors available for use.\n");
rc = -ENOSPC;
goto err;
rc = request_threaded_irq(msix->vector, handler, thread_fn,
0, name, data);
if (rc) {
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"request irq failed rc = %d\n", rc);
goto err;
}
mdev->intr_ops->program_msi_to_src_map(mdev,
entry, offset, true);
cookie = MK_COOKIE(entry, offset);
- dev_dbg(mdev->sdev->parent, "irq: %d assigned for src: %d\n",
+ dev_dbg(&mdev->pdev->dev, "irq: %d assigned for src: %d\n",
msix->vector, intr_src);
} else {
intr_cb = mic_register_intr_callback(mdev, offset, handler,
thread_fn, data);
if (IS_ERR(intr_cb)) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"No available callback entries for use\n");
rc = PTR_ERR(intr_cb);
goto err;
entry, offset, true);
}
cookie = MK_COOKIE(entry, intr_cb->cb_id);
- dev_dbg(mdev->sdev->parent, "callback %d registered for src: %d\n",
+ dev_dbg(&mdev->pdev->dev, "callback %d registered for src: %d\n",
intr_cb->cb_id, intr_src);
}
return (struct mic_irq *)cookie;
* returns: none.
*/
void mic_free_irq(struct mic_device *mdev,
- struct mic_irq *cookie, void *data)
+ struct mic_irq *cookie, void *data)
{
u32 offset;
u32 entry;
u8 src_id;
unsigned int irq;
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
entry = GET_ENTRY((unsigned long)cookie);
offset = GET_OFFSET((unsigned long)cookie);
if (mdev->irq_info.num_vectors > 1) {
if (entry >= mdev->irq_info.num_vectors) {
- dev_warn(mdev->sdev->parent,
+ dev_warn(&mdev->pdev->dev,
"entry %d should be < num_irq %d\n",
entry, mdev->irq_info.num_vectors);
return;
mdev->intr_ops->program_msi_to_src_map(mdev,
entry, offset, false);
- dev_dbg(mdev->sdev->parent, "irq: %d freed\n", irq);
+ dev_dbg(&mdev->pdev->dev, "irq: %d freed\n", irq);
} else {
irq = pdev->irq;
src_id = mic_unregister_intr_callback(mdev, offset);
if (src_id >= MIC_NUM_OFFSETS) {
- dev_warn(mdev->sdev->parent, "Error unregistering callback\n");
+ dev_warn(&mdev->pdev->dev, "Error unregistering callback\n");
return;
}
if (pci_dev_msi_enabled(pdev)) {
mdev->intr_ops->program_msi_to_src_map(mdev,
entry, src_id, false);
}
- dev_dbg(mdev->sdev->parent, "callback %d unregistered for src: %d\n",
+ dev_dbg(&mdev->pdev->dev, "callback %d unregistered for src: %d\n",
offset, src_id);
}
}
rc = mic_setup_intx(mdev, pdev);
if (rc) {
- dev_err(mdev->sdev->parent, "no usable interrupts\n");
+ dev_err(&mdev->pdev->dev, "no usable interrupts\n");
return rc;
}
done:
void mic_intr_restore(struct mic_device *mdev)
{
int entry, offset;
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
if (!pci_dev_msi_enabled(pdev))
return;
* the file called "COPYING".
*
* Intel MIC Host driver.
- *
- * Global TODO's across the driver to be added after initial base
- * patches are accepted upstream:
- * 1) Enable DMA support.
- * 2) Enable per vring interrupt support.
*/
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/poll.h>
-#include <linux/suspend.h>
#include <linux/mic_common.h>
#include "../common/mic_dev.h"
/* ID allocator for MIC devices */
static struct ida g_mic_ida;
-/* Class of MIC devices for sysfs accessibility. */
-static struct class *g_mic_class;
/* Base device node number for MIC devices */
static dev_t g_mic_devno;
-/* Track the total number of MIC devices */
-atomic_t g_num_mics;
static const struct file_operations mic_fops = {
.open = mic_open,
static int mic_dp_init(struct mic_device *mdev)
{
mdev->dp = kzalloc(MIC_DP_SIZE, GFP_KERNEL);
- if (!mdev->dp) {
- dev_err(mdev->sdev->parent, "%s %d err %d\n",
- __func__, __LINE__, -ENOMEM);
+ if (!mdev->dp)
return -ENOMEM;
- }
mdev->dp_dma_addr = mic_map_single(mdev,
mdev->dp, MIC_DP_SIZE);
if (mic_map_error(mdev->dp_dma_addr)) {
kfree(mdev->dp);
- dev_err(mdev->sdev->parent, "%s %d err %d\n",
+ dev_err(&mdev->pdev->dev, "%s %d err %d\n",
__func__, __LINE__, -ENOMEM);
return -ENOMEM;
}
kfree(mdev->dp);
}
-/**
- * mic_shutdown_db - Shutdown doorbell interrupt handler.
- */
-static irqreturn_t mic_shutdown_db(int irq, void *data)
-{
- struct mic_device *mdev = data;
- struct mic_bootparam *bootparam = mdev->dp;
-
- mdev->ops->intr_workarounds(mdev);
-
- switch (bootparam->shutdown_status) {
- case MIC_HALTED:
- case MIC_POWER_OFF:
- case MIC_RESTART:
- /* Fall through */
- case MIC_CRASHED:
- schedule_work(&mdev->shutdown_work);
- break;
- default:
- break;
- };
- return IRQ_HANDLED;
-}
-
/**
* mic_ops_init: Initialize HW specific operation tables.
*
return family;
}
-/**
-* mic_pm_notifier: Notifier callback function that handles
-* PM notifications.
-*
-* @notifier_block: The notifier structure.
-* @pm_event: The event for which the driver was notified.
-* @unused: Meaningless. Always NULL.
-*
-* returns NOTIFY_DONE
-*/
-static int mic_pm_notifier(struct notifier_block *notifier,
- unsigned long pm_event, void *unused)
-{
- struct mic_device *mdev = container_of(notifier,
- struct mic_device, pm_notifier);
-
- switch (pm_event) {
- case PM_HIBERNATION_PREPARE:
- /* Fall through */
- case PM_SUSPEND_PREPARE:
- mic_prepare_suspend(mdev);
- break;
- case PM_POST_HIBERNATION:
- /* Fall through */
- case PM_POST_SUSPEND:
- /* Fall through */
- case PM_POST_RESTORE:
- mic_complete_resume(mdev);
- break;
- case PM_RESTORE_PREPARE:
- break;
- default:
- break;
- }
- return NOTIFY_DONE;
-}
-
/**
* mic_device_init - Allocates and initializes the MIC device structure
*
*
* returns none.
*/
-static int
+static void
mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
{
- int rc;
-
+ mdev->pdev = pdev;
mdev->family = mic_get_family(pdev);
mdev->stepping = pdev->revision;
mic_ops_init(mdev);
- mic_sysfs_init(mdev);
mutex_init(&mdev->mic_mutex);
mdev->irq_info.next_avail_src = 0;
- INIT_WORK(&mdev->reset_trigger_work, mic_reset_trigger_work);
- INIT_WORK(&mdev->shutdown_work, mic_shutdown_work);
- init_completion(&mdev->reset_wait);
INIT_LIST_HEAD(&mdev->vdev_list);
- mdev->pm_notifier.notifier_call = mic_pm_notifier;
- rc = register_pm_notifier(&mdev->pm_notifier);
- if (rc) {
- dev_err(&pdev->dev, "register_pm_notifier failed rc %d\n",
- rc);
- goto register_pm_notifier_fail;
- }
- return 0;
-register_pm_notifier_fail:
- flush_work(&mdev->shutdown_work);
- flush_work(&mdev->reset_trigger_work);
- return rc;
-}
-
-/**
- * mic_device_uninit - Frees resources allocated during mic_device_init(..)
- *
- * @mdev: pointer to mic_device instance
- *
- * returns none
- */
-static void mic_device_uninit(struct mic_device *mdev)
-{
- /* The cmdline sysfs entry might have allocated cmdline */
- kfree(mdev->cmdline);
- kfree(mdev->firmware);
- kfree(mdev->ramdisk);
- kfree(mdev->bootmode);
- flush_work(&mdev->reset_trigger_work);
- flush_work(&mdev->shutdown_work);
- unregister_pm_notifier(&mdev->pm_notifier);
}
/**
* returns 0 on success, < 0 on failure.
*/
static int mic_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+ const struct pci_device_id *ent)
{
int rc;
struct mic_device *mdev;
goto ida_fail;
}
- rc = mic_device_init(mdev, pdev);
- if (rc) {
- dev_err(&pdev->dev, "mic_device_init failed rc %d\n", rc);
- goto device_init_fail;
- }
+ mic_device_init(mdev, pdev);
rc = pci_enable_device(pdev);
if (rc) {
dev_err(&pdev->dev, "failed to enable pci device.\n");
- goto uninit_device;
+ goto ida_remove;
}
pci_set_master(pdev);
pci_set_drvdata(pdev, mdev);
- mdev->sdev = device_create_with_groups(g_mic_class, &pdev->dev,
- MKDEV(MAJOR(g_mic_devno), mdev->id), NULL,
- mdev->attr_group, "mic%d", mdev->id);
- if (IS_ERR(mdev->sdev)) {
- rc = PTR_ERR(mdev->sdev);
- dev_err(&pdev->dev,
- "device_create_with_groups failed rc %d\n", rc);
- goto smpt_uninit;
- }
- mdev->state_sysfs = sysfs_get_dirent(mdev->sdev->kobj.sd, "state");
- if (!mdev->state_sysfs) {
- rc = -ENODEV;
- dev_err(&pdev->dev, "sysfs_get_dirent failed rc %d\n", rc);
- goto destroy_device;
- }
-
rc = mic_dp_init(mdev);
if (rc) {
dev_err(&pdev->dev, "mic_dp_init failed rc %d\n", rc);
- goto sysfs_put;
- }
- mutex_lock(&mdev->mic_mutex);
-
- mdev->shutdown_db = mic_next_db(mdev);
- mdev->shutdown_cookie = mic_request_threaded_irq(mdev, mic_shutdown_db,
- NULL, "shutdown-interrupt", mdev,
- mdev->shutdown_db, MIC_INTR_DB);
- if (IS_ERR(mdev->shutdown_cookie)) {
- rc = PTR_ERR(mdev->shutdown_cookie);
- mutex_unlock(&mdev->mic_mutex);
- goto dp_uninit;
+ goto smpt_uninit;
}
- mutex_unlock(&mdev->mic_mutex);
mic_bootparam_init(mdev);
mic_create_debug_dir(mdev);
- cdev_init(&mdev->cdev, &mic_fops);
- mdev->cdev.owner = THIS_MODULE;
- rc = cdev_add(&mdev->cdev, MKDEV(MAJOR(g_mic_devno), mdev->id), 1);
+
+ mdev->miscdev.minor = MISC_DYNAMIC_MINOR;
+ snprintf(mdev->name, sizeof(mdev->name), "mic%d", mdev->id);
+ mdev->miscdev.name = mdev->name;
+ mdev->miscdev.fops = &mic_fops;
+ mdev->miscdev.parent = &mdev->pdev->dev;
+ rc = misc_register(&mdev->miscdev);
if (rc) {
- dev_err(&pdev->dev, "cdev_add err id %d rc %d\n", mdev->id, rc);
+ dev_err(&pdev->dev, "misc_register err id %d rc %d\n",
+ mdev->id, rc);
goto cleanup_debug_dir;
}
- atomic_inc(&g_num_mics);
+
+ mdev->cosm_dev = cosm_register_device(&mdev->pdev->dev, &cosm_hw_ops);
+ if (IS_ERR(mdev->cosm_dev)) {
+ rc = PTR_ERR(mdev->cosm_dev);
+ dev_err(&pdev->dev, "cosm_add_device failed rc %d\n", rc);
+ goto misc_dereg;
+ }
return 0;
+misc_dereg:
+ misc_deregister(&mdev->miscdev);
cleanup_debug_dir:
mic_delete_debug_dir(mdev);
- mutex_lock(&mdev->mic_mutex);
- mic_free_irq(mdev, mdev->shutdown_cookie, mdev);
- mutex_unlock(&mdev->mic_mutex);
-dp_uninit:
mic_dp_uninit(mdev);
-sysfs_put:
- sysfs_put(mdev->state_sysfs);
-destroy_device:
- device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
smpt_uninit:
mic_smpt_uninit(mdev);
free_interrupts:
pci_release_regions(pdev);
disable_device:
pci_disable_device(pdev);
-uninit_device:
- mic_device_uninit(mdev);
-device_init_fail:
+ida_remove:
ida_simple_remove(&g_mic_ida, mdev->id);
ida_fail:
kfree(mdev);
if (!mdev)
return;
- mic_stop(mdev, false);
- atomic_dec(&g_num_mics);
- cdev_del(&mdev->cdev);
+ cosm_unregister_device(mdev->cosm_dev);
+ misc_deregister(&mdev->miscdev);
mic_delete_debug_dir(mdev);
- mutex_lock(&mdev->mic_mutex);
- mic_free_irq(mdev, mdev->shutdown_cookie, mdev);
- mutex_unlock(&mdev->mic_mutex);
- flush_work(&mdev->shutdown_work);
mic_dp_uninit(mdev);
- sysfs_put(mdev->state_sysfs);
- device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
mic_smpt_uninit(mdev);
mic_free_interrupts(mdev, pdev);
- iounmap(mdev->mmio.va);
iounmap(mdev->aper.va);
- mic_device_uninit(mdev);
+ iounmap(mdev->mmio.va);
pci_release_regions(pdev);
pci_disable_device(pdev);
ida_simple_remove(&g_mic_ida, mdev->id);
int ret;
ret = alloc_chrdev_region(&g_mic_devno, 0,
- MIC_MAX_NUM_DEVS, mic_driver_name);
+ MIC_MAX_NUM_DEVS, mic_driver_name);
if (ret) {
pr_err("alloc_chrdev_region failed ret %d\n", ret);
goto error;
}
- g_mic_class = class_create(THIS_MODULE, mic_driver_name);
- if (IS_ERR(g_mic_class)) {
- ret = PTR_ERR(g_mic_class);
- pr_err("class_create failed ret %d\n", ret);
- goto cleanup_chrdev;
- }
-
mic_init_debugfs();
ida_init(&g_mic_ida);
ret = pci_register_driver(&mic_driver);
if (ret) {
pr_err("pci_register_driver failed ret %d\n", ret);
- goto cleanup_debugfs;
+ goto cleanup_chrdev;
}
return ret;
-cleanup_debugfs:
+cleanup_chrdev:
ida_destroy(&g_mic_ida);
mic_exit_debugfs();
- class_destroy(g_mic_class);
-cleanup_chrdev:
unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
error:
return ret;
pci_unregister_driver(&mic_driver);
ida_destroy(&g_mic_ida);
mic_exit_debugfs();
- class_destroy(g_mic_class);
unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
}
/* Populate an SMPT entry and update the reference counts. */
static void mic_add_smpt_entry(int spt, s64 *ref, u64 addr,
- int entries, struct mic_device *mdev)
+ int entries, struct mic_device *mdev)
{
struct mic_smpt_info *smpt_info = mdev->smpt;
int i;
* for a given DMA address and size.
*/
static dma_addr_t mic_smpt_op(struct mic_device *mdev, u64 dma_addr,
- int entries, s64 *ref, size_t size)
+ int entries, s64 *ref, size_t size)
{
int spt;
int ae = 0;
* and the starting smpt address
*/
static int mic_get_smpt_ref_count(struct mic_device *mdev, dma_addr_t dma_addr,
- size_t size, s64 *ref, u64 *smpt_start)
+ size_t size, s64 *ref, u64 *smpt_start)
{
u64 start = dma_addr;
u64 end = dma_addr + size;
dma_addr_t dma_addr;
if (!mic_is_system_addr(mdev, mic_addr)) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"mic_addr is invalid. mic_addr = 0x%llx\n", mic_addr);
return -EINVAL;
}
return mic_addr;
num_entries = mic_get_smpt_ref_count(mdev, dma_addr, size,
- ref, &smpt_start);
+ ref, &smpt_start);
/* Set the smpt table appropriately and get 16G aligned mic address */
mic_addr = mic_smpt_op(mdev, smpt_start, num_entries, ref, size);
* else generate mic_addr by adding the 16G offset in dma_addr
*/
if (!mic_addr && MIC_FAMILY_X100 == mdev->family) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"mic_map failed dma_addr 0x%llx size 0x%lx\n",
dma_addr, size);
return mic_addr;
return;
if (!mic_is_system_addr(mdev, mic_addr)) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"invalid address: 0x%llx\n", mic_addr);
return;
}
for (i = spt; i < spt + num_smpt; i++) {
smpt_info->entry[i].ref_count -= ref[i - spt];
if (smpt_info->entry[i].ref_count < 0)
- dev_warn(mdev->sdev->parent,
+ dev_warn(&mdev->pdev->dev,
"ref count for entry %d is negative\n", i);
}
spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size)
{
dma_addr_t mic_addr = 0;
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
dma_addr_t dma_addr =
pci_map_single(pdev, va, size, PCI_DMA_BIDIRECTIONAL);
if (!pci_dma_mapping_error(pdev, dma_addr)) {
mic_addr = mic_map(mdev, dma_addr, size);
if (!mic_addr) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"mic_map failed dma_addr 0x%llx size 0x%lx\n",
dma_addr, size);
pci_unmap_single(pdev, dma_addr,
void
mic_unmap_single(struct mic_device *mdev, dma_addr_t mic_addr, size_t size)
{
- struct pci_dev *pdev = container_of(mdev->sdev->parent,
- struct pci_dev, dev);
+ struct pci_dev *pdev = mdev->pdev;
dma_addr_t dma_addr = mic_to_dma_addr(mdev, mic_addr);
mic_unmap(mdev, mic_addr, size);
pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL);
struct mic_smpt_info *smpt_info = mdev->smpt;
int i;
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"nodeid %d SMPT ref count %lld map %lld unmap %lld\n",
mdev->id, smpt_info->ref_count,
smpt_info->map_count, smpt_info->unmap_count);
for (i = 0; i < smpt_info->info.num_reg; i++) {
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"SMPT entry[%d] dma_addr = 0x%llx ref_count = %lld\n",
i, smpt_info->entry[i].dma_addr,
smpt_info->entry[i].ref_count);
if (smpt_info->entry[i].ref_count)
- dev_warn(mdev->sdev->parent,
+ dev_warn(&mdev->pdev->dev,
"ref count for entry %d is not zero\n", i);
}
kfree(smpt_info->entry);
+++ /dev/null
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/pci.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-
-/*
- * A state-to-string lookup table, for exposing a human readable state
- * via sysfs. Always keep in sync with enum mic_states
- */
-static const char * const mic_state_string[] = {
- [MIC_OFFLINE] = "offline",
- [MIC_ONLINE] = "online",
- [MIC_SHUTTING_DOWN] = "shutting_down",
- [MIC_RESET_FAILED] = "reset_failed",
- [MIC_SUSPENDING] = "suspending",
- [MIC_SUSPENDED] = "suspended",
-};
-
-/*
- * A shutdown-status-to-string lookup table, for exposing a human
- * readable state via sysfs. Always keep in sync with enum mic_shutdown_status
- */
-static const char * const mic_shutdown_status_string[] = {
- [MIC_NOP] = "nop",
- [MIC_CRASHED] = "crashed",
- [MIC_HALTED] = "halted",
- [MIC_POWER_OFF] = "poweroff",
- [MIC_RESTART] = "restart",
-};
-
-void mic_set_shutdown_status(struct mic_device *mdev, u8 shutdown_status)
-{
- dev_dbg(mdev->sdev->parent, "Shutdown Status %s -> %s\n",
- mic_shutdown_status_string[mdev->shutdown_status],
- mic_shutdown_status_string[shutdown_status]);
- mdev->shutdown_status = shutdown_status;
-}
-
-void mic_set_state(struct mic_device *mdev, u8 state)
-{
- dev_dbg(mdev->sdev->parent, "State %s -> %s\n",
- mic_state_string[mdev->state],
- mic_state_string[state]);
- mdev->state = state;
- sysfs_notify_dirent(mdev->state_sysfs);
-}
-
-static ssize_t
-family_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- static const char x100[] = "x100";
- static const char unknown[] = "Unknown";
- const char *card = NULL;
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev)
- return -EINVAL;
-
- switch (mdev->family) {
- case MIC_FAMILY_X100:
- card = x100;
- break;
- default:
- card = unknown;
- break;
- }
- return scnprintf(buf, PAGE_SIZE, "%s\n", card);
-}
-static DEVICE_ATTR_RO(family);
-
-static ssize_t
-stepping_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- char *string = "??";
-
- if (!mdev)
- return -EINVAL;
-
- switch (mdev->stepping) {
- case MIC_A0_STEP:
- string = "A0";
- break;
- case MIC_B0_STEP:
- string = "B0";
- break;
- case MIC_B1_STEP:
- string = "B1";
- break;
- case MIC_C0_STEP:
- string = "C0";
- break;
- default:
- break;
- }
- return scnprintf(buf, PAGE_SIZE, "%s\n", string);
-}
-static DEVICE_ATTR_RO(stepping);
-
-static ssize_t
-state_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev || mdev->state >= MIC_LAST)
- return -EINVAL;
-
- return scnprintf(buf, PAGE_SIZE, "%s\n",
- mic_state_string[mdev->state]);
-}
-
-static ssize_t
-state_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int rc = 0;
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- if (!mdev)
- return -EINVAL;
- if (sysfs_streq(buf, "boot")) {
- rc = mic_start(mdev, buf);
- if (rc) {
- dev_err(mdev->sdev->parent,
- "mic_boot failed rc %d\n", rc);
- count = rc;
- }
- goto done;
- }
-
- if (sysfs_streq(buf, "reset")) {
- schedule_work(&mdev->reset_trigger_work);
- goto done;
- }
-
- if (sysfs_streq(buf, "shutdown")) {
- mic_shutdown(mdev);
- goto done;
- }
-
- if (sysfs_streq(buf, "suspend")) {
- mic_suspend(mdev);
- goto done;
- }
-
- count = -EINVAL;
-done:
- return count;
-}
-static DEVICE_ATTR_RW(state);
-
-static ssize_t shutdown_status_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev || mdev->shutdown_status >= MIC_STATUS_LAST)
- return -EINVAL;
-
- return scnprintf(buf, PAGE_SIZE, "%s\n",
- mic_shutdown_status_string[mdev->shutdown_status]);
-}
-static DEVICE_ATTR_RO(shutdown_status);
-
-static ssize_t
-cmdline_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- char *cmdline;
-
- if (!mdev)
- return -EINVAL;
-
- cmdline = mdev->cmdline;
-
- if (cmdline)
- return scnprintf(buf, PAGE_SIZE, "%s\n", cmdline);
- return 0;
-}
-
-static ssize_t
-cmdline_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev)
- return -EINVAL;
-
- mutex_lock(&mdev->mic_mutex);
- kfree(mdev->cmdline);
-
- mdev->cmdline = kmalloc(count + 1, GFP_KERNEL);
- if (!mdev->cmdline) {
- count = -ENOMEM;
- goto unlock;
- }
-
- strncpy(mdev->cmdline, buf, count);
-
- if (mdev->cmdline[count - 1] == '\n')
- mdev->cmdline[count - 1] = '\0';
- else
- mdev->cmdline[count] = '\0';
-unlock:
- mutex_unlock(&mdev->mic_mutex);
- return count;
-}
-static DEVICE_ATTR_RW(cmdline);
-
-static ssize_t
-firmware_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- char *firmware;
-
- if (!mdev)
- return -EINVAL;
-
- firmware = mdev->firmware;
-
- if (firmware)
- return scnprintf(buf, PAGE_SIZE, "%s\n", firmware);
- return 0;
-}
-
-static ssize_t
-firmware_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev)
- return -EINVAL;
-
- mutex_lock(&mdev->mic_mutex);
- kfree(mdev->firmware);
-
- mdev->firmware = kmalloc(count + 1, GFP_KERNEL);
- if (!mdev->firmware) {
- count = -ENOMEM;
- goto unlock;
- }
- strncpy(mdev->firmware, buf, count);
-
- if (mdev->firmware[count - 1] == '\n')
- mdev->firmware[count - 1] = '\0';
- else
- mdev->firmware[count] = '\0';
-unlock:
- mutex_unlock(&mdev->mic_mutex);
- return count;
-}
-static DEVICE_ATTR_RW(firmware);
-
-static ssize_t
-ramdisk_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- char *ramdisk;
-
- if (!mdev)
- return -EINVAL;
-
- ramdisk = mdev->ramdisk;
-
- if (ramdisk)
- return scnprintf(buf, PAGE_SIZE, "%s\n", ramdisk);
- return 0;
-}
-
-static ssize_t
-ramdisk_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev)
- return -EINVAL;
-
- mutex_lock(&mdev->mic_mutex);
- kfree(mdev->ramdisk);
-
- mdev->ramdisk = kmalloc(count + 1, GFP_KERNEL);
- if (!mdev->ramdisk) {
- count = -ENOMEM;
- goto unlock;
- }
-
- strncpy(mdev->ramdisk, buf, count);
-
- if (mdev->ramdisk[count - 1] == '\n')
- mdev->ramdisk[count - 1] = '\0';
- else
- mdev->ramdisk[count] = '\0';
-unlock:
- mutex_unlock(&mdev->mic_mutex);
- return count;
-}
-static DEVICE_ATTR_RW(ramdisk);
-
-static ssize_t
-bootmode_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- char *bootmode;
-
- if (!mdev)
- return -EINVAL;
-
- bootmode = mdev->bootmode;
-
- if (bootmode)
- return scnprintf(buf, PAGE_SIZE, "%s\n", bootmode);
- return 0;
-}
-
-static ssize_t
-bootmode_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev)
- return -EINVAL;
-
- if (!sysfs_streq(buf, "linux") && !sysfs_streq(buf, "elf"))
- return -EINVAL;
-
- mutex_lock(&mdev->mic_mutex);
- kfree(mdev->bootmode);
-
- mdev->bootmode = kmalloc(count + 1, GFP_KERNEL);
- if (!mdev->bootmode) {
- count = -ENOMEM;
- goto unlock;
- }
-
- strncpy(mdev->bootmode, buf, count);
-
- if (mdev->bootmode[count - 1] == '\n')
- mdev->bootmode[count - 1] = '\0';
- else
- mdev->bootmode[count] = '\0';
-unlock:
- mutex_unlock(&mdev->mic_mutex);
- return count;
-}
-static DEVICE_ATTR_RW(bootmode);
-
-static ssize_t
-log_buf_addr_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev)
- return -EINVAL;
-
- return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_addr);
-}
-
-static ssize_t
-log_buf_addr_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- int ret;
- unsigned long addr;
-
- if (!mdev)
- return -EINVAL;
-
- ret = kstrtoul(buf, 16, &addr);
- if (ret)
- goto exit;
-
- mdev->log_buf_addr = (void *)addr;
- ret = count;
-exit:
- return ret;
-}
-static DEVICE_ATTR_RW(log_buf_addr);
-
-static ssize_t
-log_buf_len_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
- if (!mdev)
- return -EINVAL;
-
- return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_len);
-}
-
-static ssize_t
-log_buf_len_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mic_device *mdev = dev_get_drvdata(dev->parent);
- int ret;
- unsigned long addr;
-
- if (!mdev)
- return -EINVAL;
-
- ret = kstrtoul(buf, 16, &addr);
- if (ret)
- goto exit;
-
- mdev->log_buf_len = (int *)addr;
- ret = count;
-exit:
- return ret;
-}
-static DEVICE_ATTR_RW(log_buf_len);
-
-static struct attribute *mic_default_attrs[] = {
- &dev_attr_family.attr,
- &dev_attr_stepping.attr,
- &dev_attr_state.attr,
- &dev_attr_shutdown_status.attr,
- &dev_attr_cmdline.attr,
- &dev_attr_firmware.attr,
- &dev_attr_ramdisk.attr,
- &dev_attr_bootmode.attr,
- &dev_attr_log_buf_addr.attr,
- &dev_attr_log_buf_len.attr,
-
- NULL
-};
-
-ATTRIBUTE_GROUPS(mic_default);
-
-void mic_sysfs_init(struct mic_device *mdev)
-{
- mdev->attr_group = mic_default_groups;
-}
#include <linux/uaccess.h>
#include <linux/dmaengine.h>
#include <linux/mic_common.h>
-
#include "../common/mic_dev.h"
#include "mic_device.h"
#include "mic_smpt.h"
}
error:
if (err)
- dev_err(mdev->sdev->parent, "%s %d err %d\n",
+ dev_err(&mdev->pdev->dev, "%s %d err %d\n",
__func__, __LINE__, err);
return err;
}
struct list_head *pos, *tmp;
struct mic_vdev *mvdev;
- dev_dbg(mdev->sdev->parent, "%s\n", __func__);
+ dev_dbg(&mdev->pdev->dev, "%s\n", __func__);
list_for_each_safe(pos, tmp, &mdev->vdev_list) {
mvdev = list_entry(pos, struct mic_vdev, list);
mvr->head = USHRT_MAX;
mvr->mvdev = mvdev;
mvr->vrh.notify = mic_notify;
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"%s %d index %d va %p info %p vr_size 0x%x\n",
__func__, __LINE__, i, vr->va, vr->info, vr_size);
mvr->buf = (void *)__get_free_pages(GFP_KERNEL,
mvdev->virtio_db, MIC_INTR_DB);
if (IS_ERR(mvdev->virtio_cookie)) {
ret = PTR_ERR(mvdev->virtio_cookie);
- dev_dbg(mdev->sdev->parent, "request irq failed\n");
+ dev_dbg(&mdev->pdev->dev, "request irq failed\n");
goto err;
}
smp_wmb();
dd->type = type;
- dev_dbg(mdev->sdev->parent, "Added virtio device id %d\n", dd->type);
+ dev_dbg(&mdev->pdev->dev, "Added virtio device id %d\n", dd->type);
db = bootparam->h2c_config_db;
if (db != -1)
db = bootparam->h2c_config_db;
if (db == -1)
goto skip_hot_remove;
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"Requesting hot remove id %d\n", mvdev->virtio_id);
mvdev->dc->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE;
mdev->ops->send_intr(mdev, db);
if (ret)
break;
}
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"Device id %d config_change %d guest_ack %d retry %d\n",
mvdev->virtio_id, mvdev->dc->config_change,
mvdev->dc->guest_ack, retry);
tmp_mvdev = list_entry(pos, struct mic_vdev, list);
if (tmp_mvdev == mvdev) {
list_del(pos);
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"Removing virtio device id %d\n",
mvdev->virtio_id);
break;
/* Helper API to obtain the MIC PCIe device */
static inline struct device *mic_dev(struct mic_vdev *mvdev)
{
- return mvdev->mdev->sdev->parent;
+ return &mvdev->mdev->pdev->dev;
}
/* Helper API to check if a virtio device is initialized */
static void
mic_x100_write_spad(struct mic_device *mdev, unsigned int idx, u32 val)
{
- dev_dbg(mdev->sdev->parent, "Writing 0x%x to scratch pad index %d\n",
+ dev_dbg(&mdev->pdev->dev, "Writing 0x%x to scratch pad index %d\n",
val, idx);
mic_mmio_write(&mdev->mmio, val,
MIC_X100_SBOX_BASE_ADDRESS +
MIC_X100_SBOX_BASE_ADDRESS +
MIC_X100_SBOX_SPAD0 + idx * 4);
- dev_dbg(mdev->sdev->parent,
+ dev_dbg(&mdev->pdev->dev,
"Reading 0x%x from scratch pad index %d\n", val, idx);
return val;
}
* @mdev: pointer to mic_device instance
*/
static void mic_x100_send_sbox_intr(struct mic_device *mdev,
- int doorbell)
+ int doorbell)
{
struct mic_mw *mw = &mdev->mmio;
u64 apic_icr_offset = MIC_X100_SBOX_APICICR0 + doorbell * 8;
* @mdev: pointer to mic_device instance
*/
static void mic_x100_send_rdmasr_intr(struct mic_device *mdev,
- int doorbell)
+ int doorbell)
{
int rdmasr_offset = MIC_X100_SBOX_RDMASR0 + (doorbell << 2);
/* Ensure that the interrupt is ordered w.r.t. previous stores. */
boot_mem = mdev->aper.len >> 20;
buf = kzalloc(CMDLINE_SIZE, GFP_KERNEL);
- if (!buf) {
- dev_err(mdev->sdev->parent,
- "%s %d allocation failed\n", __func__, __LINE__);
+ if (!buf)
return -ENOMEM;
- }
+
len += snprintf(buf, CMDLINE_SIZE - len,
" mem=%dM", boot_mem);
- if (mdev->cmdline)
- snprintf(buf + len, CMDLINE_SIZE - len, " %s", mdev->cmdline);
+ if (mdev->cosm_dev->cmdline)
+ snprintf(buf + len, CMDLINE_SIZE - len, " %s",
+ mdev->cosm_dev->cmdline);
memcpy_toio(cmd_line_va, buf, strlen(buf) + 1);
kfree(buf);
return 0;
int rc;
struct boot_params __iomem *bp = mdev->aper.va + mdev->bootaddr;
- rc = request_firmware(&fw,
- mdev->ramdisk, mdev->sdev->parent);
+ rc = request_firmware(&fw, mdev->cosm_dev->ramdisk, &mdev->pdev->dev);
if (rc < 0) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"ramdisk request_firmware failed: %d %s\n",
- rc, mdev->ramdisk);
+ rc, mdev->cosm_dev->ramdisk);
goto error;
}
/*
scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO);
boot_addr = MIC_X100_SPAD2_DOWNLOAD_ADDR(scratch2);
- dev_dbg(mdev->sdev->parent, "%s %d boot_addr 0x%x\n",
+ dev_dbg(&mdev->pdev->dev, "%s %d boot_addr 0x%x\n",
__func__, __LINE__, boot_addr);
if (boot_addr > (1 << 31)) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"incorrect bootaddr 0x%x\n",
boot_addr);
rc = -EINVAL;
if (rc)
goto error;
/* load OS */
- rc = request_firmware(&fw, mdev->firmware, mdev->sdev->parent);
+ rc = request_firmware(&fw, mdev->cosm_dev->firmware, &mdev->pdev->dev);
if (rc < 0) {
- dev_err(mdev->sdev->parent,
+ dev_err(&mdev->pdev->dev,
"ramdisk request_firmware failed: %d %s\n",
- rc, mdev->firmware);
+ rc, mdev->cosm_dev->firmware);
goto error;
}
if (mdev->bootaddr > mdev->aper.len - fw->size) {
rc = -EINVAL;
- dev_err(mdev->sdev->parent, "%s %d rc %d bootaddr 0x%x\n",
+ dev_err(&mdev->pdev->dev, "%s %d rc %d bootaddr 0x%x\n",
__func__, __LINE__, rc, mdev->bootaddr);
release_firmware(fw);
goto error;
}
memcpy_toio(mdev->aper.va + mdev->bootaddr, fw->data, fw->size);
mdev->ops->write_spad(mdev, MIC_X100_FW_SIZE, fw->size);
- if (!strcmp(mdev->bootmode, "elf"))
+ if (!strcmp(mdev->cosm_dev->bootmode, "flash"))
goto done;
/* load command line */
rc = mic_x100_load_command_line(mdev, fw);
if (rc) {
- dev_err(mdev->sdev->parent, "%s %d rc %d\n",
+ dev_err(&mdev->pdev->dev, "%s %d rc %d\n",
__func__, __LINE__, rc);
goto error;
}
release_firmware(fw);
/* load ramdisk */
- if (mdev->ramdisk)
+ if (mdev->cosm_dev->ramdisk)
rc = mic_x100_load_ramdisk(mdev);
error:
- dev_dbg(mdev->sdev->parent, "%s %d rc %d\n", __func__, __LINE__, rc);
+ dev_dbg(&mdev->pdev->dev, "%s %d rc %d\n", __func__, __LINE__, rc);
done:
return rc;
}
projects / firefly-linux-kernel-4.4.55.git / commitdiff