[PATCH v5 5/7] accel/ivpu: Implement firmware parsing and booting
Oded Gabbay
oded.gabbay at gmail.com
Tue Jan 10 15:34:55 UTC 2023
On Mon, Jan 9, 2023 at 2:24 PM Jacek Lawrynowicz
<jacek.lawrynowicz at linux.intel.com> wrote:
>
> Read, parse and boot VPU firmware image.
>
> Co-developed-by: Andrzej Kacprowski <andrzej.kacprowski at linux.intel.com>
> Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski at linux.intel.com>
> Co-developed-by: Krystian Pradzynski <krystian.pradzynski at linux.intel.com>
> Signed-off-by: Krystian Pradzynski <krystian.pradzynski at linux.intel.com>
> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>
> ---
> drivers/accel/ivpu/Makefile | 1 +
> drivers/accel/ivpu/ivpu_drv.c | 131 +++++++++-
> drivers/accel/ivpu/ivpu_drv.h | 11 +
> drivers/accel/ivpu/ivpu_fw.c | 419 ++++++++++++++++++++++++++++++
> drivers/accel/ivpu/ivpu_fw.h | 38 +++
> drivers/accel/ivpu/ivpu_hw_mtl.c | 10 +
> drivers/accel/ivpu/vpu_boot_api.h | 349 +++++++++++++++++++++++++
> include/uapi/drm/ivpu_accel.h | 21 ++
> 8 files changed, 979 insertions(+), 1 deletion(-)
> create mode 100644 drivers/accel/ivpu/ivpu_fw.c
> create mode 100644 drivers/accel/ivpu/ivpu_fw.h
> create mode 100644 drivers/accel/ivpu/vpu_boot_api.h
>
> diff --git a/drivers/accel/ivpu/Makefile b/drivers/accel/ivpu/Makefile
> index 46595f0112e3..9fa6a76e9d79 100644
> --- a/drivers/accel/ivpu/Makefile
> +++ b/drivers/accel/ivpu/Makefile
> @@ -3,6 +3,7 @@
>
> intel_vpu-y := \
> ivpu_drv.o \
> + ivpu_fw.o \
> ivpu_gem.o \
> ivpu_hw_mtl.o \
> ivpu_ipc.o \
> diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c
> index 6643ae6b5a52..53e103f64832 100644
> --- a/drivers/accel/ivpu/ivpu_drv.c
> +++ b/drivers/accel/ivpu/ivpu_drv.c
> @@ -14,10 +14,13 @@
> #include <drm/drm_ioctl.h>
> #include <drm/drm_prime.h>
>
> +#include "vpu_boot_api.h"
> #include "ivpu_drv.h"
> +#include "ivpu_fw.h"
> #include "ivpu_gem.h"
> #include "ivpu_hw.h"
> #include "ivpu_ipc.h"
> +#include "ivpu_jsm_msg.h"
> #include "ivpu_mmu.h"
> #include "ivpu_mmu_context.h"
>
> @@ -32,6 +35,10 @@ int ivpu_dbg_mask;
> module_param_named(dbg_mask, ivpu_dbg_mask, int, 0644);
> MODULE_PARM_DESC(dbg_mask, "Driver debug mask. See IVPU_DBG_* macros.");
>
> +int ivpu_test_mode;
> +module_param_named_unsafe(test_mode, ivpu_test_mode, int, 0644);
> +MODULE_PARM_DESC(test_mode, "Test mode: 0 - normal operation, 1 - fw unit test, 2 - null hw");
> +
> u8 ivpu_pll_min_ratio;
> module_param_named(pll_min_ratio, ivpu_pll_min_ratio, byte, 0644);
> MODULE_PARM_DESC(pll_min_ratio, "Minimum PLL ratio used to set VPU frequency");
> @@ -129,6 +136,28 @@ static int ivpu_get_param_ioctl(struct drm_device *dev, void *data, struct drm_f
> case DRM_IVPU_PARAM_CONTEXT_ID:
> args->value = file_priv->ctx.id;
> break;
> + case DRM_IVPU_PARAM_FW_API_VERSION:
> + if (args->index < VPU_FW_API_VER_NUM) {
> + struct vpu_firmware_header *fw_hdr;
> +
> + fw_hdr = (struct vpu_firmware_header *)vdev->fw->file->data;
> + args->value = fw_hdr->api_version[args->index];
> + } else {
> + ret = -EINVAL;
> + }
> + break;
> + case DRM_IVPU_PARAM_ENGINE_HEARTBEAT:
> + ret = ivpu_jsm_get_heartbeat(vdev, args->index, &args->value);
> + break;
> + case DRM_IVPU_PARAM_UNIQUE_INFERENCE_ID:
> + args->value = (u64)atomic64_inc_return(&vdev->unique_id_counter);
> + break;
> + case DRM_IVPU_PARAM_TILE_CONFIG:
> + args->value = vdev->hw->tile_fuse;
> + break;
> + case DRM_IVPU_PARAM_SKU:
> + args->value = vdev->hw->sku;
> + break;
> default:
> ret = -EINVAL;
> break;
> @@ -226,11 +255,85 @@ static const struct drm_ioctl_desc ivpu_drm_ioctls[] = {
> DRM_IOCTL_DEF_DRV(IVPU_BO_USERPTR, ivpu_bo_userptr_ioctl, 0),
> };
>
> +static int ivpu_wait_for_ready(struct ivpu_device *vdev)
> +{
> + struct ivpu_ipc_consumer cons;
> + struct ivpu_ipc_hdr ipc_hdr;
> + unsigned long timeout;
> + int ret;
> +
> + if (ivpu_test_mode == IVPU_TEST_MODE_FW_TEST)
> + return 0;
> +
> + ivpu_ipc_consumer_add(vdev, &cons, IVPU_IPC_CHAN_BOOT_MSG);
> +
> + timeout = jiffies + msecs_to_jiffies(vdev->timeout.boot);
> + while (1) {
> + ret = ivpu_ipc_irq_handler(vdev);
> + if (ret)
> + break;
> + ret = ivpu_ipc_receive(vdev, &cons, &ipc_hdr, NULL, 0);
> + if (ret != -ETIMEDOUT || time_after_eq(jiffies, timeout))
> + break;
> +
> + cond_resched();
> + }
> +
> + ivpu_ipc_consumer_del(vdev, &cons);
> +
> + if (!ret && ipc_hdr.data_addr != IVPU_IPC_BOOT_MSG_DATA_ADDR) {
> + ivpu_err(vdev, "Invalid VPU ready message: 0x%x\n",
> + ipc_hdr.data_addr);
> + return -EIO;
> + }
> +
> + if (!ret)
> + ivpu_info(vdev, "VPU ready message received successfully\n");
> + else
> + ivpu_hw_diagnose_failure(vdev);
> +
> + return ret;
> +}
> +
> +/**
> + * ivpu_boot() - Start VPU firmware
> + * @vdev: VPU device
> + *
> + * This function is paired with ivpu_shutdown() but it doesn't power up the
> + * VPU because power up has to be called very early in ivpu_probe().
> + */
> +int ivpu_boot(struct ivpu_device *vdev)
> +{
> + int ret;
> +
> + /* Update boot params located at first 4KB of FW memory */
> + ivpu_fw_boot_params_setup(vdev, vdev->fw->mem->kvaddr);
> +
> + ret = ivpu_hw_boot_fw(vdev);
> + if (ret) {
> + ivpu_err(vdev, "Failed to start the firmware: %d\n", ret);
> + return ret;
> + }
> +
> + ret = ivpu_wait_for_ready(vdev);
> + if (ret) {
> + ivpu_err(vdev, "Failed to boot the firmware: %d\n", ret);
> + return ret;
> + }
> +
> + ivpu_hw_irq_clear(vdev);
> + enable_irq(vdev->irq);
> + ivpu_hw_irq_enable(vdev);
> + ivpu_ipc_enable(vdev);
> + return 0;
> +}
> +
> int ivpu_shutdown(struct ivpu_device *vdev)
> {
> int ret;
>
> ivpu_hw_irq_disable(vdev);
> + disable_irq(vdev->irq);
> ivpu_ipc_disable(vdev);
> ivpu_mmu_disable(vdev);
>
> @@ -348,6 +451,10 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
> if (!vdev->mmu)
> return -ENOMEM;
>
> + vdev->fw = drmm_kzalloc(&vdev->drm, sizeof(*vdev->fw), GFP_KERNEL);
> + if (!vdev->fw)
> + return -ENOMEM;
> +
> vdev->ipc = drmm_kzalloc(&vdev->drm, sizeof(*vdev->ipc), GFP_KERNEL);
> if (!vdev->ipc)
> return -ENOMEM;
> @@ -356,6 +463,7 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
> vdev->platform = IVPU_PLATFORM_INVALID;
> vdev->context_xa_limit.min = IVPU_GLOBAL_CONTEXT_MMU_SSID + 1;
> vdev->context_xa_limit.max = IVPU_CONTEXT_LIMIT;
> + atomic64_set(&vdev->unique_id_counter, 0);
> xa_init_flags(&vdev->context_xa, XA_FLAGS_ALLOC);
>
> ret = ivpu_pci_init(vdev);
> @@ -396,14 +504,34 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
> goto err_mmu_gctx_fini;
> }
>
> + ret = ivpu_fw_init(vdev);
> + if (ret) {
> + ivpu_err(vdev, "Failed to initialize firmware: %d\n", ret);
> + goto err_mmu_gctx_fini;
> + }
> +
> ret = ivpu_ipc_init(vdev);
> if (ret) {
> ivpu_err(vdev, "Failed to initialize IPC: %d\n", ret);
> - goto err_mmu_gctx_fini;
> + goto err_fw_fini;
> + }
> +
> + ret = ivpu_fw_load(vdev);
> + if (ret) {
> + ivpu_err(vdev, "Failed to load firmware: %d\n", ret);
> + goto err_fw_fini;
> + }
> +
> + ret = ivpu_boot(vdev);
> + if (ret) {
> + ivpu_err(vdev, "Failed to boot: %d\n", ret);
> + goto err_fw_fini;
> }
>
> return 0;
>
> +err_fw_fini:
> + ivpu_fw_fini(vdev);
> err_mmu_gctx_fini:
> ivpu_mmu_global_context_fini(vdev);
> err_power_down:
> @@ -417,6 +545,7 @@ static void ivpu_dev_fini(struct ivpu_device *vdev)
> {
> ivpu_shutdown(vdev);
> ivpu_ipc_fini(vdev);
> + ivpu_fw_fini(vdev);
> ivpu_mmu_global_context_fini(vdev);
>
> drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->context_xa));
> diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h
> index c1e76d1fb8ba..317ae61f43bd 100644
> --- a/drivers/accel/ivpu/ivpu_drv.h
> +++ b/drivers/accel/ivpu/ivpu_drv.h
> @@ -74,6 +74,7 @@ struct ivpu_wa_table {
>
> struct ivpu_hw_info;
> struct ivpu_mmu_info;
> +struct ivpu_fw_info;
> struct ivpu_ipc_info;
>
> struct ivpu_device {
> @@ -86,12 +87,15 @@ struct ivpu_device {
> struct ivpu_wa_table wa;
> struct ivpu_hw_info *hw;
> struct ivpu_mmu_info *mmu;
> + struct ivpu_fw_info *fw;
> struct ivpu_ipc_info *ipc;
>
> struct ivpu_mmu_context gctx;
> struct xarray context_xa;
> struct xa_limit context_xa_limit;
>
> + atomic64_t unique_id_counter;
> +
> struct {
> int boot;
> int jsm;
> @@ -116,9 +120,16 @@ extern int ivpu_dbg_mask;
> extern u8 ivpu_pll_min_ratio;
> extern u8 ivpu_pll_max_ratio;
>
> +#define IVPU_TEST_MODE_DISABLED 0
> +#define IVPU_TEST_MODE_FW_TEST 1
> +#define IVPU_TEST_MODE_NULL_HW 2
> +extern int ivpu_test_mode;
> +
> struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv);
> struct ivpu_file_priv *ivpu_file_priv_get_by_ctx_id(struct ivpu_device *vdev, unsigned long id);
> void ivpu_file_priv_put(struct ivpu_file_priv **link);
> +
> +int ivpu_boot(struct ivpu_device *vdev);
> int ivpu_shutdown(struct ivpu_device *vdev);
>
> static inline bool ivpu_is_mtl(struct ivpu_device *vdev)
> diff --git a/drivers/accel/ivpu/ivpu_fw.c b/drivers/accel/ivpu/ivpu_fw.c
> new file mode 100644
> index 000000000000..4baa0767a10d
> --- /dev/null
> +++ b/drivers/accel/ivpu/ivpu_fw.c
> @@ -0,0 +1,419 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (C) 2020-2023 Intel Corporation
> + */
> +
> +#include <linux/firmware.h>
> +#include <linux/highmem.h>
> +#include <linux/moduleparam.h>
> +#include <linux/pci.h>
> +
> +#include "vpu_boot_api.h"
> +#include "ivpu_drv.h"
> +#include "ivpu_fw.h"
> +#include "ivpu_gem.h"
> +#include "ivpu_hw.h"
> +#include "ivpu_ipc.h"
> +
> +#define FW_GLOBAL_MEM_START (2ull * SZ_1G)
> +#define FW_GLOBAL_MEM_END (3ull * SZ_1G)
> +#define FW_SHARED_MEM_SIZE SZ_256M /* Must be aligned to FW_SHARED_MEM_ALIGNMENT */
> +#define FW_SHARED_MEM_ALIGNMENT SZ_128K /* VPU MTRR limitation */
> +#define FW_RUNTIME_MAX_SIZE SZ_512M
> +#define FW_SHAVE_NN_MAX_SIZE SZ_2M
> +#define FW_RUNTIME_MIN_ADDR (FW_GLOBAL_MEM_START)
> +#define FW_RUNTIME_MAX_ADDR (FW_GLOBAL_MEM_END - FW_SHARED_MEM_SIZE)
> +#define FW_VERSION_HEADER_SIZE SZ_4K
> +#define FW_FILE_IMAGE_OFFSET (VPU_FW_HEADER_SIZE + FW_VERSION_HEADER_SIZE)
> +
> +#define WATCHDOG_MSS_REDIRECT 32
> +#define WATCHDOG_NCE_REDIRECT 33
> +
> +#define ADDR_TO_L2_CACHE_CFG(addr) ((addr) >> 31)
> +
> +#define IVPU_FW_CHECK_API(vdev, fw_hdr, name) ivpu_fw_check_api(vdev, fw_hdr, #name, \
> + VPU_##name##_API_VER_INDEX, \
> + VPU_##name##_API_VER_MAJOR, \
> + VPU_##name##_API_VER_MINOR)
> +
> +static char *ivpu_firmware;
> +module_param_named_unsafe(firmware, ivpu_firmware, charp, 0644);
> +MODULE_PARM_DESC(firmware, "VPU firmware binary in /lib/firmware/..");
> +
> +static int ivpu_fw_request(struct ivpu_device *vdev)
> +{
> + static const char * const fw_names[] = {
> + "mtl_vpu.bin",
> + "intel/vpu/mtl_vpu_v0.0.bin"
> + };
> + int ret = -ENOENT;
> + int i;
> +
> + if (ivpu_firmware)
> + return request_firmware(&vdev->fw->file, ivpu_firmware, vdev->drm.dev);
> +
> + for (i = 0; i < ARRAY_SIZE(fw_names); i++) {
> + ret = firmware_request_nowarn(&vdev->fw->file, fw_names[i], vdev->drm.dev);
> + if (!ret)
> + return 0;
> + }
> +
> + ivpu_err(vdev, "Failed to request firmware: %d\n", ret);
> + return ret;
> +}
> +
> +static void
> +ivpu_fw_check_api(struct ivpu_device *vdev, const struct vpu_firmware_header *fw_hdr,
> + const char *str, int index, u16 expected_major, u16 expected_minor)
> +{
> + u16 major = (u16)(fw_hdr->api_version[index] >> 16);
> + u16 minor = (u16)(fw_hdr->api_version[index]);
> +
> + if (major != expected_major) {
> + ivpu_warn(vdev, "Incompatible FW %s API version: %d.%d (expected %d.%d)\n",
> + str, major, minor, expected_major, expected_minor);
> + }
> + ivpu_dbg(vdev, FW_BOOT, "FW %s API version: %d.%d (expected %d.%d)\n",
> + str, major, minor, expected_major, expected_minor);
> +}
> +
> +static int ivpu_fw_parse(struct ivpu_device *vdev)
> +{
> + struct ivpu_fw_info *fw = vdev->fw;
> + const struct vpu_firmware_header *fw_hdr = (const void *)fw->file->data;
> + u64 runtime_addr, image_load_addr, runtime_size, image_size;
> +
> + if (fw->file->size <= FW_FILE_IMAGE_OFFSET) {
> + ivpu_err(vdev, "Firmware file is too small: %zu\n", fw->file->size);
> + return -EINVAL;
> + }
> +
> + if (fw_hdr->header_version != VPU_FW_HEADER_VERSION) {
> + ivpu_err(vdev, "Invalid firmware header version: %u\n", fw_hdr->header_version);
> + return -EINVAL;
> + }
> +
> + runtime_addr = fw_hdr->boot_params_load_address;
> + runtime_size = fw_hdr->runtime_size;
> + image_load_addr = fw_hdr->image_load_address;
> + image_size = fw_hdr->image_size;
> +
> + if (runtime_addr < FW_RUNTIME_MIN_ADDR || runtime_addr > FW_RUNTIME_MAX_ADDR) {
> + ivpu_err(vdev, "Invalid firmware runtime address: 0x%llx\n", runtime_addr);
> + return -EINVAL;
> + }
> +
> + if (runtime_size < fw->file->size || runtime_size > FW_RUNTIME_MAX_SIZE) {
> + ivpu_err(vdev, "Invalid firmware runtime size: %llu\n", runtime_size);
> + return -EINVAL;
> + }
> +
> + if (FW_FILE_IMAGE_OFFSET + image_size > fw->file->size) {
> + ivpu_err(vdev, "Invalid image size: %llu\n", image_size);
> + return -EINVAL;
> + }
> +
> + if (image_load_addr < runtime_addr ||
> + image_load_addr + image_size > runtime_addr + runtime_size) {
> + ivpu_err(vdev, "Invalid firmware load address size: 0x%llx and size %llu\n",
> + image_load_addr, image_size);
> + return -EINVAL;
> + }
> +
> + if (fw_hdr->shave_nn_fw_size > FW_SHAVE_NN_MAX_SIZE) {
> + ivpu_err(vdev, "SHAVE NN firmware is too big: %u\n", fw_hdr->shave_nn_fw_size);
> + return -EINVAL;
> + }
> +
> + if (fw_hdr->entry_point < image_load_addr ||
> + fw_hdr->entry_point >= image_load_addr + image_size) {
> + ivpu_err(vdev, "Invalid entry point: 0x%llx\n", fw_hdr->entry_point);
> + return -EINVAL;
> + }
> +
> + fw->runtime_addr = runtime_addr;
> + fw->runtime_size = runtime_size;
> + fw->image_load_offset = image_load_addr - runtime_addr;
> + fw->image_size = image_size;
> + fw->shave_nn_size = PAGE_ALIGN(fw_hdr->shave_nn_fw_size);
> +
> + fw->cold_boot_entry_point = fw_hdr->entry_point;
> + fw->entry_point = fw->cold_boot_entry_point;
> +
> + ivpu_dbg(vdev, FW_BOOT, "Header version: 0x%x, format 0x%x\n",
> + fw_hdr->header_version, fw_hdr->image_format);
> + ivpu_dbg(vdev, FW_BOOT, "Size: file %lu image %u runtime %u shavenn %u\n",
> + fw->file->size, fw->image_size, fw->runtime_size, fw->shave_nn_size);
> + ivpu_dbg(vdev, FW_BOOT, "Address: runtime 0x%llx, load 0x%llx, entry point 0x%llx\n",
> + fw->runtime_addr, image_load_addr, fw->entry_point);
> + ivpu_dbg(vdev, FW_BOOT, "FW version: %s\n", (char *)fw_hdr + VPU_FW_HEADER_SIZE);
> +
> + IVPU_FW_CHECK_API(vdev, fw_hdr, BOOT);
> + IVPU_FW_CHECK_API(vdev, fw_hdr, JSM);
> +
> + return 0;
> +}
> +
> +static void ivpu_fw_release(struct ivpu_device *vdev)
> +{
> + release_firmware(vdev->fw->file);
> +}
> +
> +static int ivpu_fw_update_global_range(struct ivpu_device *vdev)
> +{
> + struct ivpu_fw_info *fw = vdev->fw;
> + u64 start = ALIGN(fw->runtime_addr + fw->runtime_size, FW_SHARED_MEM_ALIGNMENT);
> + u64 size = FW_SHARED_MEM_SIZE;
> +
> + if (start + size > FW_GLOBAL_MEM_END) {
> + ivpu_err(vdev, "No space for shared region, start %lld, size %lld\n", start, size);
> + return -EINVAL;
> + }
> +
> + ivpu_hw_init_range(&vdev->hw->ranges.global_low, start, size);
> + return 0;
> +}
> +
> +static int ivpu_fw_mem_init(struct ivpu_device *vdev)
> +{
> + struct ivpu_fw_info *fw = vdev->fw;
> + int ret;
> +
> + ret = ivpu_fw_update_global_range(vdev);
> + if (ret)
> + return ret;
> +
> + fw->mem = ivpu_bo_alloc_internal(vdev, fw->runtime_addr, fw->runtime_size, DRM_IVPU_BO_WC);
> + if (!fw->mem) {
> + ivpu_err(vdev, "Failed to allocate firmware runtime memory\n");
> + return -ENOMEM;
> + }
> +
> + if (fw->shave_nn_size) {
> + fw->mem_shave_nn = ivpu_bo_alloc_internal(vdev, vdev->hw->ranges.global_high.start,
> + fw->shave_nn_size, DRM_IVPU_BO_UNCACHED);
> + if (!fw->mem_shave_nn) {
> + ivpu_err(vdev, "Failed to allocate shavenn buffer\n");
> + ivpu_bo_free_internal(fw->mem);
> + return -ENOMEM;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static void ivpu_fw_mem_fini(struct ivpu_device *vdev)
> +{
> + struct ivpu_fw_info *fw = vdev->fw;
> +
> + if (fw->mem_shave_nn) {
> + ivpu_bo_free_internal(fw->mem_shave_nn);
> + fw->mem_shave_nn = NULL;
> + }
> +
> + ivpu_bo_free_internal(fw->mem);
> + fw->mem = NULL;
> +}
> +
> +int ivpu_fw_init(struct ivpu_device *vdev)
> +{
> + int ret;
> +
> + ret = ivpu_fw_request(vdev);
> + if (ret)
> + return ret;
> +
> + ret = ivpu_fw_parse(vdev);
> + if (ret)
> + goto err_fw_release;
> +
> + ret = ivpu_fw_mem_init(vdev);
> + if (ret)
> + goto err_fw_release;
> +
> + return 0;
> +
> +err_fw_release:
> + ivpu_fw_release(vdev);
Why do you release the firmware only on error ?
Why maintain the hold on the firmware file for as long as the device lives ?
Can't you release the file once you loaded the firmware to the device's memory ?
Oded
> + return ret;
> +}
> +
> +void ivpu_fw_fini(struct ivpu_device *vdev)
> +{
> + ivpu_fw_mem_fini(vdev);
> + ivpu_fw_release(vdev);
> +}
> +
> +int ivpu_fw_load(struct ivpu_device *vdev)
> +{
> + struct ivpu_fw_info *fw = vdev->fw;
> + u64 image_end_offset = fw->image_load_offset + fw->image_size;
> +
> + memset(fw->mem->kvaddr, 0, fw->image_load_offset);
> + memcpy(fw->mem->kvaddr + fw->image_load_offset,
> + fw->file->data + FW_FILE_IMAGE_OFFSET, fw->image_size);
> +
> + if (IVPU_WA(clear_runtime_mem)) {
> + u8 *start = fw->mem->kvaddr + image_end_offset;
> + u64 size = fw->mem->base.size - image_end_offset;
> +
> + memset(start, 0, size);
> + }
> +
> + wmb(); /* Flush WC buffers after writing fw->mem */
> +
> + return 0;
> +}
> +
> +static void ivpu_fw_boot_params_print(struct ivpu_device *vdev, struct vpu_boot_params *boot_params)
> +{
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.magic = 0x%x\n",
> + boot_params->magic);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_id = 0x%x\n",
> + boot_params->vpu_id);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_count = 0x%x\n",
> + boot_params->vpu_count);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.frequency = %u\n",
> + boot_params->frequency);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.perf_clk_frequency = %u\n",
> + boot_params->perf_clk_frequency);
> +
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_header_area_start = 0x%llx\n",
> + boot_params->ipc_header_area_start);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_header_area_size = 0x%x\n",
> + boot_params->ipc_header_area_size);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.shared_region_base = 0x%llx\n",
> + boot_params->shared_region_base);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.shared_region_size = 0x%x\n",
> + boot_params->shared_region_size);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_payload_area_start = 0x%llx\n",
> + boot_params->ipc_payload_area_start);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_payload_area_size = 0x%x\n",
> + boot_params->ipc_payload_area_size);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.global_aliased_pio_base = 0x%llx\n",
> + boot_params->global_aliased_pio_base);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.global_aliased_pio_size = 0x%x\n",
> + boot_params->global_aliased_pio_size);
> +
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.autoconfig = 0x%x\n",
> + boot_params->autoconfig);
> +
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].use = 0x%x\n",
> + boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].use);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].cfg = 0x%x\n",
> + boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].cfg);
> +
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.global_memory_allocator_base = 0x%llx\n",
> + boot_params->global_memory_allocator_base);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.global_memory_allocator_size = 0x%x\n",
> + boot_params->global_memory_allocator_size);
> +
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.shave_nn_fw_base = 0x%llx\n",
> + boot_params->shave_nn_fw_base);
> +
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.watchdog_irq_mss = 0x%x\n",
> + boot_params->watchdog_irq_mss);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.watchdog_irq_nce = 0x%x\n",
> + boot_params->watchdog_irq_nce);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.host_to_vpu_irq = 0x%x\n",
> + boot_params->host_to_vpu_irq);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.job_done_irq = 0x%x\n",
> + boot_params->job_done_irq);
> +
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.host_version_id = 0x%x\n",
> + boot_params->host_version_id);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.si_stepping = 0x%x\n",
> + boot_params->si_stepping);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.device_id = 0x%llx\n",
> + boot_params->device_id);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.feature_exclusion = 0x%llx\n",
> + boot_params->feature_exclusion);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.sku = 0x%llx\n",
> + boot_params->sku);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.min_freq_pll_ratio = 0x%x\n",
> + boot_params->min_freq_pll_ratio);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.pn_freq_pll_ratio = 0x%x\n",
> + boot_params->pn_freq_pll_ratio);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.max_freq_pll_ratio = 0x%x\n",
> + boot_params->max_freq_pll_ratio);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.default_trace_level = 0x%x\n",
> + boot_params->default_trace_level);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.tracing_buff_message_format_mask = 0x%llx\n",
> + boot_params->tracing_buff_message_format_mask);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.trace_destination_mask = 0x%x\n",
> + boot_params->trace_destination_mask);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.trace_hw_component_mask = 0x%llx\n",
> + boot_params->trace_hw_component_mask);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.boot_type = 0x%x\n",
> + boot_params->boot_type);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.punit_telemetry_sram_base = 0x%llx\n",
> + boot_params->punit_telemetry_sram_base);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.punit_telemetry_sram_size = 0x%llx\n",
> + boot_params->punit_telemetry_sram_size);
> + ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_telemetry_enable = 0x%x\n",
> + boot_params->vpu_telemetry_enable);
> +}
> +
> +void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params *boot_params)
> +{
> + struct ivpu_bo *ipc_mem_rx = vdev->ipc->mem_rx;
> +
> + /* In case of warm boot we only have to reset the entrypoint addr */
> + if (!ivpu_fw_is_cold_boot(vdev)) {
> + boot_params->save_restore_ret_address = 0;
> + return;
> + }
> +
> + boot_params->magic = VPU_BOOT_PARAMS_MAGIC;
> + boot_params->vpu_id = to_pci_dev(vdev->drm.dev)->bus->number;
> + boot_params->frequency = ivpu_hw_reg_pll_freq_get(vdev);
> +
> + /*
> + * Uncached region of VPU address space, covers IPC buffers, job queues
> + * and log buffers, programmable to L2$ Uncached by VPU MTRR
> + */
> + boot_params->shared_region_base = vdev->hw->ranges.global_low.start;
> + boot_params->shared_region_size = vdev->hw->ranges.global_low.end -
> + vdev->hw->ranges.global_low.start;
> +
> + boot_params->ipc_header_area_start = ipc_mem_rx->vpu_addr;
> + boot_params->ipc_header_area_size = ipc_mem_rx->base.size / 2;
> +
> + boot_params->ipc_payload_area_start = ipc_mem_rx->vpu_addr + ipc_mem_rx->base.size / 2;
> + boot_params->ipc_payload_area_size = ipc_mem_rx->base.size / 2;
> +
> + boot_params->global_aliased_pio_base =
> + vdev->hw->ranges.global_aliased_pio.start;
> + boot_params->global_aliased_pio_size =
> + ivpu_hw_range_size(&vdev->hw->ranges.global_aliased_pio);
> +
> + /* Allow configuration for L2C_PAGE_TABLE with boot param value */
> + boot_params->autoconfig = 1;
> +
> + /* Enable L2 cache for first 2GB of high memory */
> + boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].use = 1;
> + boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].cfg =
> + ADDR_TO_L2_CACHE_CFG(vdev->hw->ranges.global_high.start);
> +
> + if (vdev->fw->mem_shave_nn)
> + boot_params->shave_nn_fw_base = vdev->fw->mem_shave_nn->vpu_addr;
> +
> + boot_params->watchdog_irq_mss = WATCHDOG_MSS_REDIRECT;
> + boot_params->watchdog_irq_nce = WATCHDOG_NCE_REDIRECT;
> + boot_params->si_stepping = ivpu_revision(vdev);
> + boot_params->device_id = ivpu_device_id(vdev);
> + boot_params->feature_exclusion = vdev->hw->tile_fuse;
> + boot_params->sku = vdev->hw->sku;
> +
> + boot_params->min_freq_pll_ratio = vdev->hw->pll.min_ratio;
> + boot_params->pn_freq_pll_ratio = vdev->hw->pll.pn_ratio;
> + boot_params->max_freq_pll_ratio = vdev->hw->pll.max_ratio;
> +
> + boot_params->punit_telemetry_sram_base = ivpu_hw_reg_telemetry_offset_get(vdev);
> + boot_params->punit_telemetry_sram_size = ivpu_hw_reg_telemetry_size_get(vdev);
> + boot_params->vpu_telemetry_enable = ivpu_hw_reg_telemetry_enable_get(vdev);
> +
> + wmb(); /* Flush WC buffers after writing bootparams */
> +
> + ivpu_fw_boot_params_print(vdev, boot_params);
> +}
> diff --git a/drivers/accel/ivpu/ivpu_fw.h b/drivers/accel/ivpu/ivpu_fw.h
> new file mode 100644
> index 000000000000..8d275c802d1c
> --- /dev/null
> +++ b/drivers/accel/ivpu/ivpu_fw.h
> @@ -0,0 +1,38 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Copyright (C) 2020-2023 Intel Corporation
> + */
> +
> +#ifndef __IVPU_FW_H__
> +#define __IVPU_FW_H__
> +
> +struct ivpu_device;
> +struct ivpu_bo;
> +struct vpu_boot_params;
> +
> +struct ivpu_fw_info {
> + const struct firmware *file;
> + struct ivpu_bo *mem;
> + struct ivpu_bo *mem_shave_nn;
> + struct ivpu_bo *mem_log_crit;
> + struct ivpu_bo *mem_log_verb;
> + u64 runtime_addr;
> + u32 runtime_size;
> + u64 image_load_offset;
> + u32 image_size;
> + u32 shave_nn_size;
> + u64 entry_point; /* Cold or warm boot entry point for next boot */
> + u64 cold_boot_entry_point;
> +};
> +
> +int ivpu_fw_init(struct ivpu_device *vdev);
> +void ivpu_fw_fini(struct ivpu_device *vdev);
> +int ivpu_fw_load(struct ivpu_device *vdev);
> +void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params *bp);
> +
> +static inline bool ivpu_fw_is_cold_boot(struct ivpu_device *vdev)
> +{
> + return vdev->fw->entry_point == vdev->fw->cold_boot_entry_point;
> +}
> +
> +#endif /* __IVPU_FW_H__ */
> diff --git a/drivers/accel/ivpu/ivpu_hw_mtl.c b/drivers/accel/ivpu/ivpu_hw_mtl.c
> index 0e9ef4c40901..55caf5479f5f 100644
> --- a/drivers/accel/ivpu/ivpu_hw_mtl.c
> +++ b/drivers/accel/ivpu/ivpu_hw_mtl.c
> @@ -4,6 +4,7 @@
> */
>
> #include "ivpu_drv.h"
> +#include "ivpu_fw.h"
> #include "ivpu_hw_mtl_reg.h"
> #include "ivpu_hw_reg_io.h"
> #include "ivpu_hw.h"
> @@ -588,6 +589,15 @@ static void ivpu_boot_soc_cpu_boot(struct ivpu_device *vdev)
>
> val = REG_CLR_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RESUME0, val);
> REGV_WR32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
> +
> + val = vdev->fw->entry_point >> 9;
> + REGV_WR32(MTL_VPU_HOST_SS_LOADING_ADDRESS_LO, val);
> +
> + val = REG_SET_FLD(MTL_VPU_HOST_SS_LOADING_ADDRESS_LO, DONE, val);
> + REGV_WR32(MTL_VPU_HOST_SS_LOADING_ADDRESS_LO, val);
> +
> + ivpu_dbg(vdev, PM, "Booting firmware, mode: %s\n",
> + vdev->fw->entry_point == vdev->fw->cold_boot_entry_point ? "cold boot" : "resume");
> }
>
> static int ivpu_boot_d0i3_drive(struct ivpu_device *vdev, bool enable)
> diff --git a/drivers/accel/ivpu/vpu_boot_api.h b/drivers/accel/ivpu/vpu_boot_api.h
> new file mode 100644
> index 000000000000..6b71be92ba65
> --- /dev/null
> +++ b/drivers/accel/ivpu/vpu_boot_api.h
> @@ -0,0 +1,349 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright (C) 2020-2023 Intel Corporation
> + */
> +
> +#ifndef VPU_BOOT_API_H
> +#define VPU_BOOT_API_H
> +
> +/*
> + * =========== FW API version information beginning ================
> + * The bellow values will be used to construct the version info this way:
> + * fw_bin_header->api_version[VPU_BOOT_API_VER_ID] = (VPU_BOOT_API_VER_MAJOR << 16) |
> + * VPU_BOOT_API_VER_MINOR;
> + * VPU_BOOT_API_VER_PATCH will be ignored. KMD and compatibility is not affected if this changes.
> + */
> +
> +/*
> + * Major version changes that break backward compatibility.
> + * Major version must start from 1 and can only be incremented.
> + */
> +#define VPU_BOOT_API_VER_MAJOR 3
> +
> +/*
> + * Minor version changes when API backward compatibility is preserved.
> + * Resets to 0 if Major version is incremented.
> + */
> +#define VPU_BOOT_API_VER_MINOR 12
> +
> +/*
> + * API header changed (field names, documentation, formatting) but API itself has not been changed
> + */
> +#define VPU_BOOT_API_VER_PATCH 2
> +
> +/*
> + * Index in the API version table
> + * Must be unique for each API
> + */
> +#define VPU_BOOT_API_VER_INDEX 0
> +/* ------------ FW API version information end ---------------------*/
> +
> +#pragma pack(push, 1)
> +
> +/*
> + * Firmware image header format
> + */
> +#define VPU_FW_HEADER_SIZE 4096
> +#define VPU_FW_HEADER_VERSION 0x1
> +#define VPU_FW_VERSION_SIZE 32
> +#define VPU_FW_API_VER_NUM 16
> +
> +struct vpu_firmware_header {
> + u32 header_version;
> + u32 image_format;
> + u64 image_load_address;
> + u32 image_size;
> + u64 entry_point;
> + u8 vpu_version[VPU_FW_VERSION_SIZE];
> + u32 compression_type;
> + u64 firmware_version_load_address;
> + u32 firmware_version_size;
> + u64 boot_params_load_address;
> + u32 api_version[VPU_FW_API_VER_NUM];
> + /* Size of memory require for firmware execution */
> + u32 runtime_size;
> + u32 shave_nn_fw_size;
> +};
> +
> +/*
> + * Firmware boot parameters format
> + */
> +
> +#define VPU_BOOT_PLL_COUNT 3
> +#define VPU_BOOT_PLL_OUT_COUNT 4
> +
> +/** Values for boot_type field */
> +#define VPU_BOOT_TYPE_COLDBOOT 0
> +#define VPU_BOOT_TYPE_WARMBOOT 1
> +
> +/** Value for magic filed */
> +#define VPU_BOOT_PARAMS_MAGIC 0x10000
> +
> +/** VPU scheduling mode. By default, OS scheduling is used. */
> +#define VPU_SCHEDULING_MODE_OS 0
> +#define VPU_SCHEDULING_MODE_HW 1
> +
> +enum VPU_BOOT_L2_CACHE_CFG_TYPE {
> + VPU_BOOT_L2_CACHE_CFG_UPA = 0,
> + VPU_BOOT_L2_CACHE_CFG_NN = 1,
> + VPU_BOOT_L2_CACHE_CFG_NUM = 2
> +};
> +
> +/**
> + * Logging destinations.
> + *
> + * Logging output can be directed to different logging destinations. This enum
> + * defines the list of logging destinations supported by the VPU firmware (NOTE:
> + * a specific VPU FW binary may support only a subset of such output
> + * destinations, depending on the target platform and compile options).
> + */
> +enum vpu_trace_destination {
> + VPU_TRACE_DESTINATION_PIPEPRINT = 0x1,
> + VPU_TRACE_DESTINATION_VERBOSE_TRACING = 0x2,
> + VPU_TRACE_DESTINATION_NORTH_PEAK = 0x4,
> +};
> +
> +/*
> + * Processor bit shifts (for loggable HW components).
> + */
> +#define VPU_TRACE_PROC_BIT_ARM 0
> +#define VPU_TRACE_PROC_BIT_LRT 1
> +#define VPU_TRACE_PROC_BIT_LNN 2
> +#define VPU_TRACE_PROC_BIT_SHV_0 3
> +#define VPU_TRACE_PROC_BIT_SHV_1 4
> +#define VPU_TRACE_PROC_BIT_SHV_2 5
> +#define VPU_TRACE_PROC_BIT_SHV_3 6
> +#define VPU_TRACE_PROC_BIT_SHV_4 7
> +#define VPU_TRACE_PROC_BIT_SHV_5 8
> +#define VPU_TRACE_PROC_BIT_SHV_6 9
> +#define VPU_TRACE_PROC_BIT_SHV_7 10
> +#define VPU_TRACE_PROC_BIT_SHV_8 11
> +#define VPU_TRACE_PROC_BIT_SHV_9 12
> +#define VPU_TRACE_PROC_BIT_SHV_10 13
> +#define VPU_TRACE_PROC_BIT_SHV_11 14
> +#define VPU_TRACE_PROC_BIT_SHV_12 15
> +#define VPU_TRACE_PROC_BIT_SHV_13 16
> +#define VPU_TRACE_PROC_BIT_SHV_14 17
> +#define VPU_TRACE_PROC_BIT_SHV_15 18
> +#define VPU_TRACE_PROC_BIT_ACT_SHV_0 19
> +#define VPU_TRACE_PROC_BIT_ACT_SHV_1 20
> +#define VPU_TRACE_PROC_BIT_ACT_SHV_2 21
> +#define VPU_TRACE_PROC_BIT_ACT_SHV_3 22
> +#define VPU_TRACE_PROC_NO_OF_HW_DEVS 23
> +
> +/* KMB HW component IDs are sequential, so define first and last IDs. */
> +#define VPU_TRACE_PROC_BIT_KMB_FIRST VPU_TRACE_PROC_BIT_LRT
> +#define VPU_TRACE_PROC_BIT_KMB_LAST VPU_TRACE_PROC_BIT_SHV_15
> +
> +struct vpu_boot_l2_cache_config {
> + u8 use;
> + u8 cfg;
> +};
> +
> +struct vpu_warm_boot_section {
> + u32 src;
> + u32 dst;
> + u32 size;
> + u32 core_id;
> + u32 is_clear_op;
> +};
> +
> +struct vpu_boot_params {
> + u32 magic;
> + u32 vpu_id;
> + u32 vpu_count;
> + u32 pad0[5];
> + /* Clock frequencies: 0x20 - 0xFF */
> + u32 frequency;
> + u32 pll[VPU_BOOT_PLL_COUNT][VPU_BOOT_PLL_OUT_COUNT];
> + u32 perf_clk_frequency;
> + u32 pad1[42];
> + /* Memory regions: 0x100 - 0x1FF */
> + u64 ipc_header_area_start;
> + u32 ipc_header_area_size;
> + u64 shared_region_base;
> + u32 shared_region_size;
> + u64 ipc_payload_area_start;
> + u32 ipc_payload_area_size;
> + u64 global_aliased_pio_base;
> + u32 global_aliased_pio_size;
> + u32 autoconfig;
> + struct vpu_boot_l2_cache_config cache_defaults[VPU_BOOT_L2_CACHE_CFG_NUM];
> + u64 global_memory_allocator_base;
> + u32 global_memory_allocator_size;
> + /**
> + * ShaveNN FW section VPU base address
> + * On VPU2.7 HW this address must be within 2GB range starting from L2C_PAGE_TABLE base
> + */
> + u64 shave_nn_fw_base;
> + u64 save_restore_ret_address; /* stores the address of FW's restore entry point */
> + u32 pad2[43];
> + /* IRQ re-direct numbers: 0x200 - 0x2FF */
> + s32 watchdog_irq_mss;
> + s32 watchdog_irq_nce;
> + /* ARM -> VPU doorbell interrupt. ARM is notifying VPU of async command or compute job. */
> + u32 host_to_vpu_irq;
> + /* VPU -> ARM job done interrupt. VPU is notifying ARM of compute job completion. */
> + u32 job_done_irq;
> + /* VPU -> ARM IRQ line to use to request MMU update. */
> + u32 mmu_update_request_irq;
> + /* ARM -> VPU IRQ line to use to notify of MMU update completion. */
> + u32 mmu_update_done_irq;
> + /* ARM -> VPU IRQ line to use to request power level change. */
> + u32 set_power_level_irq;
> + /* VPU -> ARM IRQ line to use to notify of power level change completion. */
> + u32 set_power_level_done_irq;
> + /* VPU -> ARM IRQ line to use to notify of VPU idle state change */
> + u32 set_vpu_idle_update_irq;
> + /* VPU -> ARM IRQ line to use to request counter reset. */
> + u32 metric_query_event_irq;
> + /* ARM -> VPU IRQ line to use to notify of counter reset completion. */
> + u32 metric_query_event_done_irq;
> + /* VPU -> ARM IRQ line to use to notify of preemption completion. */
> + u32 preemption_done_irq;
> + /* Padding. */
> + u32 pad3[52];
> + /* Silicon information: 0x300 - 0x3FF */
> + u32 host_version_id;
> + u32 si_stepping;
> + u64 device_id;
> + u64 feature_exclusion;
> + u64 sku;
> + /** PLL ratio for minimum clock frequency */
> + u32 min_freq_pll_ratio;
> + /** PLL ratio for maximum clock frequency */
> + u32 max_freq_pll_ratio;
> + /**
> + * Initial log level threshold (messages with log level severity less than
> + * the threshold will not be logged); applies to every enabled logging
> + * destination and loggable HW component. See 'mvLog_t' enum for acceptable
> + * values.
> + */
> + u32 default_trace_level;
> + u32 boot_type;
> + u64 punit_telemetry_sram_base;
> + u64 punit_telemetry_sram_size;
> + u32 vpu_telemetry_enable;
> + u64 crit_tracing_buff_addr;
> + u32 crit_tracing_buff_size;
> + u64 verbose_tracing_buff_addr;
> + u32 verbose_tracing_buff_size;
> + u64 verbose_tracing_sw_component_mask; /* TO BE REMOVED */
> + /**
> + * Mask of destinations to which logging messages are delivered; bitwise OR
> + * of values defined in vpu_trace_destination enum.
> + */
> + u32 trace_destination_mask;
> + /**
> + * Mask of hardware components for which logging is enabled; bitwise OR of
> + * bits defined by the VPU_TRACE_PROC_BIT_* macros.
> + */
> + u64 trace_hw_component_mask;
> + /** Mask of trace message formats supported by the driver */
> + u64 tracing_buff_message_format_mask;
> + u64 trace_reserved_1[2];
> + /**
> + * Period at which the VPU reads the temp sensor values into MMIO, on
> + * platforms where that is necessary (in ms). 0 to disable reads.
> + */
> + u32 temp_sensor_period_ms;
> + /** PLL ratio for efficient clock frequency */
> + u32 pn_freq_pll_ratio;
> + u32 pad4[28];
> + /* Warm boot information: 0x400 - 0x43F */
> + u32 warm_boot_sections_count;
> + u32 warm_boot_start_address_reference;
> + u32 warm_boot_section_info_address_offset;
> + u32 pad5[13];
> + /* Power States transitions timestamps: 0x440 - 0x46F*/
> + struct {
> + /* VPU_IDLE -> VPU_ACTIVE transition initiated timestamp */
> + u64 vpu_active_state_requested;
> + /* VPU_IDLE -> VPU_ACTIVE transition completed timestamp */
> + u64 vpu_active_state_achieved;
> + /* VPU_ACTIVE -> VPU_IDLE transition initiated timestamp */
> + u64 vpu_idle_state_requested;
> + /* VPU_ACTIVE -> VPU_IDLE transition completed timestamp */
> + u64 vpu_idle_state_achieved;
> + /* VPU_IDLE -> VPU_STANDBY transition initiated timestamp */
> + u64 vpu_standby_state_requested;
> + /* VPU_IDLE -> VPU_STANDBY transition completed timestamp */
> + u64 vpu_standby_state_achieved;
> + } power_states_timestamps;
> + /* VPU scheduling mode. Values defined by VPU_SCHEDULING_MODE_* macros. */
> + u32 vpu_scheduling_mode;
> + /* Present call period in milliseconds. */
> + u32 vpu_focus_present_timer_ms;
> + /* Unused/reserved: 0x478 - 0xFFF */
> + u32 pad6[738];
> +};
> +
> +/*
> + * Magic numbers set between host and vpu to detect corruptio of tracing init
> + */
> +
> +#define VPU_TRACING_BUFFER_CANARY (0xCAFECAFE)
> +
> +/* Tracing buffer message format definitions */
> +#define VPU_TRACING_FORMAT_STRING 0
> +#define VPU_TRACING_FORMAT_MIPI 2
> +/*
> + * Header of the tracing buffer.
> + * The below defined header will be stored at the beginning of
> + * each allocated tracing buffer, followed by a series of 256b
> + * of ASCII trace message entries.
> + */
> +struct vpu_tracing_buffer_header {
> + /**
> + * Magic number set by host to detect corruption
> + * @see VPU_TRACING_BUFFER_CANARY
> + */
> + u32 host_canary_start;
> + /* offset from start of buffer for trace entries */
> + u32 read_index;
> + u32 pad_to_cache_line_size_0[14];
> + /* End of first cache line */
> +
> + /**
> + * Magic number set by host to detect corruption
> + * @see VPU_TRACING_BUFFER_CANARY
> + */
> + u32 vpu_canary_start;
> + /* offset from start of buffer from write start */
> + u32 write_index;
> + /* counter for buffer wrapping */
> + u32 wrap_count;
> + /* legacy field - do not use */
> + u32 reserved_0;
> + /**
> + * Size of the log buffer include this header (@header_size) and space
> + * reserved for all messages. If @alignment` is greater that 0 the @Size
> + * must be multiple of @Alignment.
> + */
> + u32 size;
> + /* Header version */
> + u16 header_version;
> + /* Header size */
> + u16 header_size;
> + /*
> + * Format of the messages in the trace buffer
> + * 0 - null terminated string
> + * 1 - size + null terminated string
> + * 2 - MIPI-SysT encoding
> + */
> + u32 format;
> + /*
> + * Message alignment
> + * 0 - messages are place 1 after another
> + * n - every message starts and multiple on offset
> + */
> + u32 alignment; /* 64, 128, 256 */
> + /* Name of the logging entity, i.e "LRT", "LNN", "SHV0", etc */
> + char name[16];
> + u32 pad_to_cache_line_size_1[4];
> + /* End of second cache line */
> +};
> +
> +#pragma pack(pop)
> +
> +#endif
> diff --git a/include/uapi/drm/ivpu_accel.h b/include/uapi/drm/ivpu_accel.h
> index 5f953ebafc9b..005b40b7326c 100644
> --- a/include/uapi/drm/ivpu_accel.h
> +++ b/include/uapi/drm/ivpu_accel.h
> @@ -51,6 +51,11 @@ extern "C" {
> #define DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS 5
> #define DRM_IVPU_PARAM_CONTEXT_PRIORITY 6
> #define DRM_IVPU_PARAM_CONTEXT_ID 7
> +#define DRM_IVPU_PARAM_FW_API_VERSION 8
> +#define DRM_IVPU_PARAM_ENGINE_HEARTBEAT 9
> +#define DRM_IVPU_PARAM_UNIQUE_INFERENCE_ID 10
> +#define DRM_IVPU_PARAM_TILE_CONFIG 11
> +#define DRM_IVPU_PARAM_SKU 12
>
> #define DRM_IVPU_PLATFORM_TYPE_SILICON 0
>
> @@ -94,6 +99,22 @@ struct drm_ivpu_param {
> * %DRM_IVPU_PARAM_CONTEXT_ID:
> * Current context ID, always greater than 0 (read-only)
> *
> + * %DRM_IVPU_PARAM_FW_API_VERSION:
> + * Firmware API version array (read-only)
> + *
> + * %DRM_IVPU_PARAM_ENGINE_HEARTBEAT:
> + * Heartbeat value from an engine (read-only).
> + * Engine ID (i.e. DRM_IVPU_ENGINE_COMPUTE) is given via index.
> + *
> + * %DRM_IVPU_PARAM_UNIQUE_INFERENCE_ID:
> + * Device-unique inference ID (read-only)
> + *
> + * %DRM_IVPU_PARAM_TILE_CONFIG:
> + * VPU tile configuration (read-only)
> + *
> + * %DRM_IVPU_PARAM_SKU:
> + * VPU SKU ID (read-only)
> + *
> */
> __u32 param;
>
> --
> 2.34.1
>
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