ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/misc/mic/host/mic_boot.c b/marvell/linux/drivers/misc/mic/host/mic_boot.c
new file mode 100644
index 0000000..4f2d921
--- /dev/null
+++ b/marvell/linux/drivers/misc/mic/host/mic_boot.c
@@ -0,0 +1,587 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * Intel MIC Host driver.
+ */
+#include <linux/delay.h>
+#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 "../bus/vop_bus.h"
+#include "../common/mic_dev.h"
+#include "mic_device.h"
+#include "mic_smpt.h"
+
+static inline struct mic_device *vpdev_to_mdev(struct device *dev)
+{
+ return dev_get_drvdata(dev->parent);
+}
+
+static dma_addr_t
+_mic_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir, unsigned long attrs)
+{
+ void *va = phys_to_virt(page_to_phys(page)) + offset;
+ struct mic_device *mdev = vpdev_to_mdev(dev);
+
+ return mic_map_single(mdev, va, size);
+}
+
+static void _mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct mic_device *mdev = vpdev_to_mdev(dev);
+
+ mic_unmap_single(mdev, dma_addr, size);
+}
+
+static const struct dma_map_ops _mic_dma_ops = {
+ .map_page = _mic_dma_map_page,
+ .unmap_page = _mic_dma_unmap_page,
+};
+
+static struct mic_irq *
+__mic_request_irq(struct vop_device *vpdev,
+ irqreturn_t (*func)(int irq, void *data),
+ const char *name, void *data, int intr_src)
+{
+ struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+ return mic_request_threaded_irq(mdev, func, NULL, name, data,
+ intr_src, MIC_INTR_DB);
+}
+
+static void __mic_free_irq(struct vop_device *vpdev,
+ struct mic_irq *cookie, void *data)
+{
+ struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+ mic_free_irq(mdev, cookie, data);
+}
+
+static void __mic_ack_interrupt(struct vop_device *vpdev, int num)
+{
+ struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+ mdev->ops->intr_workarounds(mdev);
+}
+
+static int __mic_next_db(struct vop_device *vpdev)
+{
+ struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+ return mic_next_db(mdev);
+}
+
+static void *__mic_get_dp(struct vop_device *vpdev)
+{
+ struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+ return mdev->dp;
+}
+
+static void __iomem *__mic_get_remote_dp(struct vop_device *vpdev)
+{
+ return NULL;
+}
+
+static void __mic_send_intr(struct vop_device *vpdev, int db)
+{
+ struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+ mdev->ops->send_intr(mdev, db);
+}
+
+static void __iomem *__mic_ioremap(struct vop_device *vpdev,
+ dma_addr_t pa, size_t len)
+{
+ struct mic_device *mdev = vpdev_to_mdev(&vpdev->dev);
+
+ return mdev->aper.va + pa;
+}
+
+static void __mic_iounmap(struct vop_device *vpdev, void __iomem *va)
+{
+ /* nothing to do */
+}
+
+static struct vop_hw_ops vop_hw_ops = {
+ .request_irq = __mic_request_irq,
+ .free_irq = __mic_free_irq,
+ .ack_interrupt = __mic_ack_interrupt,
+ .next_db = __mic_next_db,
+ .get_dp = __mic_get_dp,
+ .get_remote_dp = __mic_get_remote_dp,
+ .send_intr = __mic_send_intr,
+ .remap = __mic_ioremap,
+ .unmap = __mic_iounmap,
+};
+
+static inline struct mic_device *scdev_to_mdev(struct scif_hw_dev *scdev)
+{
+ return dev_get_drvdata(scdev->dev.parent);
+}
+
+static void *__mic_dma_alloc(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs)
+{
+ struct scif_hw_dev *scdev = dev_get_drvdata(dev);
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+ dma_addr_t tmp;
+ void *va = kmalloc(size, gfp | __GFP_ZERO);
+
+ if (va) {
+ tmp = mic_map_single(mdev, va, size);
+ if (dma_mapping_error(dev, tmp)) {
+ kfree(va);
+ va = NULL;
+ } else {
+ *dma_handle = tmp;
+ }
+ }
+ return va;
+}
+
+static void __mic_dma_free(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle, unsigned long attrs)
+{
+ struct scif_hw_dev *scdev = dev_get_drvdata(dev);
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ mic_unmap_single(mdev, dma_handle, size);
+ kfree(vaddr);
+}
+
+static dma_addr_t
+__mic_dma_map_page(struct device *dev, struct page *page, unsigned long offset,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ void *va = phys_to_virt(page_to_phys(page)) + offset;
+ struct scif_hw_dev *scdev = dev_get_drvdata(dev);
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ return mic_map_single(mdev, va, size);
+}
+
+static void
+__mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct scif_hw_dev *scdev = dev_get_drvdata(dev);
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ mic_unmap_single(mdev, dma_addr, size);
+}
+
+static int __mic_dma_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct scif_hw_dev *scdev = dev_get_drvdata(dev);
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+ struct scatterlist *s;
+ int i, j, ret;
+ dma_addr_t da;
+
+ ret = dma_map_sg(&mdev->pdev->dev, sg, nents, dir);
+ if (ret <= 0)
+ return 0;
+
+ for_each_sg(sg, s, nents, i) {
+ da = mic_map(mdev, sg_dma_address(s) + s->offset, s->length);
+ if (!da)
+ goto err;
+ sg_dma_address(s) = da;
+ }
+ return nents;
+err:
+ for_each_sg(sg, s, i, j) {
+ 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->pdev->dev, sg, nents, dir);
+ return 0;
+}
+
+static void __mic_dma_unmap_sg(struct device *dev,
+ struct scatterlist *sg, int nents,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct scif_hw_dev *scdev = dev_get_drvdata(dev);
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+ struct scatterlist *s;
+ dma_addr_t da;
+ int i;
+
+ for_each_sg(sg, s, nents, i) {
+ da = mic_to_dma_addr(mdev, sg_dma_address(s));
+ mic_unmap(mdev, sg_dma_address(s), s->length);
+ sg_dma_address(s) = da;
+ }
+ dma_unmap_sg(&mdev->pdev->dev, sg, nents, dir);
+}
+
+static const struct dma_map_ops __mic_dma_ops = {
+ .alloc = __mic_dma_alloc,
+ .free = __mic_dma_free,
+ .map_page = __mic_dma_map_page,
+ .unmap_page = __mic_dma_unmap_page,
+ .map_sg = __mic_dma_map_sg,
+ .unmap_sg = __mic_dma_unmap_sg,
+};
+
+static struct mic_irq *
+___mic_request_irq(struct scif_hw_dev *scdev,
+ irqreturn_t (*func)(int irq, void *data),
+ const char *name,
+ void *data, int db)
+{
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ return mic_request_threaded_irq(mdev, func, NULL, name, data,
+ db, MIC_INTR_DB);
+}
+
+static void
+___mic_free_irq(struct scif_hw_dev *scdev,
+ struct mic_irq *cookie, void *data)
+{
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ mic_free_irq(mdev, cookie, data);
+}
+
+static void ___mic_ack_interrupt(struct scif_hw_dev *scdev, int num)
+{
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ mdev->ops->intr_workarounds(mdev);
+}
+
+static int ___mic_next_db(struct scif_hw_dev *scdev)
+{
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ return mic_next_db(mdev);
+}
+
+static void ___mic_send_intr(struct scif_hw_dev *scdev, int db)
+{
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ mdev->ops->send_intr(mdev, db);
+}
+
+static void __iomem *___mic_ioremap(struct scif_hw_dev *scdev,
+ phys_addr_t pa, size_t len)
+{
+ struct mic_device *mdev = scdev_to_mdev(scdev);
+
+ return mdev->aper.va + pa;
+}
+
+static void ___mic_iounmap(struct scif_hw_dev *scdev, void __iomem *va)
+{
+ /* nothing to do */
+}
+
+static struct scif_hw_ops scif_hw_ops = {
+ .request_irq = ___mic_request_irq,
+ .free_irq = ___mic_free_irq,
+ .ack_interrupt = ___mic_ack_interrupt,
+ .next_db = ___mic_next_db,
+ .send_intr = ___mic_send_intr,
+ .remap = ___mic_ioremap,
+ .unmap = ___mic_iounmap,
+};
+
+static inline struct mic_device *mbdev_to_mdev(struct mbus_device *mbdev)
+{
+ return dev_get_drvdata(mbdev->dev.parent);
+}
+
+static dma_addr_t
+mic_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ void *va = phys_to_virt(page_to_phys(page)) + offset;
+ struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+ return mic_map_single(mdev, va, size);
+}
+
+static void
+mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct mic_device *mdev = dev_get_drvdata(dev->parent);
+ mic_unmap_single(mdev, dma_addr, size);
+}
+
+static const struct dma_map_ops mic_dma_ops = {
+ .map_page = mic_dma_map_page,
+ .unmap_page = mic_dma_unmap_page,
+};
+
+static struct mic_irq *
+_mic_request_threaded_irq(struct mbus_device *mbdev,
+ irq_handler_t handler, irq_handler_t thread_fn,
+ const char *name, void *data, int intr_src)
+{
+ return mic_request_threaded_irq(mbdev_to_mdev(mbdev), handler,
+ thread_fn, name, data,
+ intr_src, MIC_INTR_DMA);
+}
+
+static void _mic_free_irq(struct mbus_device *mbdev,
+ struct mic_irq *cookie, void *data)
+{
+ mic_free_irq(mbdev_to_mdev(mbdev), cookie, data);
+}
+
+static void _mic_ack_interrupt(struct mbus_device *mbdev, int num)
+{
+ struct mic_device *mdev = mbdev_to_mdev(mbdev);
+ mdev->ops->intr_workarounds(mdev);
+}
+
+static struct mbus_hw_ops mbus_hw_ops = {
+ .request_threaded_irq = _mic_request_threaded_irq,
+ .free_irq = _mic_free_irq,
+ .ack_interrupt = _mic_ack_interrupt,
+};
+
+/* 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->h2c_config_db = -1;
+ bootparam->node_id = mdev->id + 1;
+ bootparam->scif_host_dma_addr = 0x0;
+ bootparam->scif_card_dma_addr = 0x0;
+ bootparam->c2h_scif_db = -1;
+ 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
+ *
+ * returns number of DMA channels acquired
+ */
+static int mic_request_dma_chans(struct mic_device *mdev)
+{
+ dma_cap_mask_t mask;
+ struct dma_chan *chan;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_MEMCPY, mask);
+
+ do {
+ chan = dma_request_channel(mask, mdev->ops->dma_filter,
+ &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->pdev->dev, "DMA channels # %d\n", mdev->num_dma_ch);
+ return mdev->num_dma_ch;
+}
+
+/**
+ * mic_free_dma_chans - release DMA channels
+ * @mdev: pointer to mic_device instance
+ *
+ * returns none
+ */
+static void mic_free_dma_chans(struct mic_device *mdev)
+{
+ int i = 0;
+
+ for (i = 0; i < mdev->num_dma_ch; i++) {
+ dma_release_channel(mdev->dma_ch[i]);
+ mdev->dma_ch[i] = NULL;
+ }
+ mdev->num_dma_ch = 0;
+}
+
+/**
+ * _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.
+ */
+static int _mic_start(struct cosm_device *cdev, int id)
+{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+ int rc;
+
+ mic_bootparam_init(mdev);
+ mdev->dma_mbdev = mbus_register_device(&mdev->pdev->dev,
+ MBUS_DEV_DMA_HOST, &mic_dma_ops,
+ &mbus_hw_ops, id, mdev->mmio.va);
+ if (IS_ERR(mdev->dma_mbdev)) {
+ rc = PTR_ERR(mdev->dma_mbdev);
+ goto unlock_ret;
+ }
+ if (!mic_request_dma_chans(mdev)) {
+ rc = -ENODEV;
+ goto dma_remove;
+ }
+ mdev->scdev = scif_register_device(&mdev->pdev->dev, MIC_SCIF_DEV,
+ &__mic_dma_ops, &scif_hw_ops,
+ id + 1, 0, &mdev->mmio,
+ &mdev->aper, mdev->dp, NULL,
+ mdev->dma_ch, mdev->num_dma_ch,
+ true);
+ if (IS_ERR(mdev->scdev)) {
+ rc = PTR_ERR(mdev->scdev);
+ goto dma_free;
+ }
+
+ mdev->vpdev = vop_register_device(&mdev->pdev->dev,
+ VOP_DEV_TRNSP, &_mic_dma_ops,
+ &vop_hw_ops, id + 1, &mdev->aper,
+ mdev->dma_ch[0]);
+ if (IS_ERR(mdev->vpdev)) {
+ rc = PTR_ERR(mdev->vpdev);
+ goto scif_remove;
+ }
+
+ rc = mdev->ops->load_mic_fw(mdev, NULL);
+ if (rc)
+ goto vop_remove;
+ mic_smpt_restore(mdev);
+ mic_intr_restore(mdev);
+ mdev->intr_ops->enable_interrupts(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);
+ goto unlock_ret;
+vop_remove:
+ vop_unregister_device(mdev->vpdev);
+scif_remove:
+ scif_unregister_device(mdev->scdev);
+dma_free:
+ mic_free_dma_chans(mdev);
+dma_remove:
+ mbus_unregister_device(mdev->dma_mbdev);
+unlock_ret:
+ return rc;
+}
+
+/**
+ * _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.
+ */
+static void _mic_stop(struct cosm_device *cdev, bool force)
+{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+
+ /*
+ * Since SCIF handles card shutdown and reset (using COSM), it will
+ * will be the first to be registered and the last to be
+ * unregistered.
+ */
+ vop_unregister_device(mdev->vpdev);
+ scif_unregister_device(mdev->scdev);
+ mic_free_dma_chans(mdev);
+ mbus_unregister_device(mdev->dma_mbdev);
+ mic_bootparam_init(mdev);
+}
+
+static ssize_t _mic_family(struct cosm_device *cdev, char *buf)
+{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+ static const char *family[MIC_FAMILY_LAST] = { "x100", "Unknown" };
+
+ return scnprintf(buf, PAGE_SIZE, "%s\n", family[mdev->family]);
+}
+
+static ssize_t _mic_stepping(struct cosm_device *cdev, char *buf)
+{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+ const char *string = "??";
+
+ 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 struct mic_mw *_mic_aper(struct cosm_device *cdev)
+{
+ struct mic_device *mdev = cosmdev_to_mdev(cdev);
+
+ 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,
+};