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Date: Sun, 2 May 2021 09:38:44 +0300
From: Oded Gabbay <ogabbay@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Ohad Sharabi <osharabi@...ana.ai>
Subject: [PATCH 3/4] habanalabs: load boot fit to device
From: Ohad Sharabi <osharabi@...ana.ai>
Implementing dynamic boot fit image load to the device.
Note that some necessary adjustment were added to the static loader as
well so that both loaders can co-exist.
as this is not the final FW load stage the dynamic FW load is still
forced to be non functional.
Signed-off-by: Ohad Sharabi <osharabi@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
drivers/misc/habanalabs/common/firmware_if.c | 577 +++++++++++++++++--
drivers/misc/habanalabs/common/habanalabs.h | 61 +-
drivers/misc/habanalabs/gaudi/gaudi.c | 23 +-
drivers/misc/habanalabs/goya/goya.c | 23 +-
4 files changed, 615 insertions(+), 69 deletions(-)
diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c
index 284563388710..e85747d8392a 100644
--- a/drivers/misc/habanalabs/common/firmware_if.c
+++ b/drivers/misc/habanalabs/common/firmware_if.c
@@ -9,9 +9,18 @@
#include "../include/common/hl_boot_if.h"
#include <linux/firmware.h>
+#include <linux/crc32.h>
#include <linux/slab.h>
-#define FW_FILE_MAX_SIZE 0x1400000 /* maximum size of 20MB */
+#define FW_FILE_MAX_SIZE 0x1400000 /* maximum size of 20MB */
+
+/*
+ * when copying image to FW we assume that PCI bar should not be re-set
+ * (refers mainly to DRAM in which we do such it to access arbitrary region's
+ * memory address) and we limit the BAR offset to 1G which should be more than
+ * reasonable for image copy purposes.
+ */
+#define FW_IMAGE_MAX_BAR_OFFSET (1024 * 1024 * 1024)
static int hl_request_fw(struct hl_device *hdev,
const struct firmware **firmware_p,
@@ -53,6 +62,53 @@ static int hl_request_fw(struct hl_device *hdev,
return rc;
}
+/**
+ * hl_release_firmware() - release FW
+ *
+ * @fw: fw descriptor
+ *
+ * note: this inline function added to serve as a comprehensive mirror for the
+ * hl_request_fw function.
+ */
+static inline void hl_release_firmware(const struct firmware *fw)
+{
+ release_firmware(fw);
+}
+
+/**
+ * hl_fw_copy_fw_to_device() - copy FW to device
+ *
+ * @hdev: pointer to hl_device structure.
+ * @fw: fw descriptor
+ * @dst: IO memory mapped address space to copy firmware to
+ * @src_offset: offset in src FW to copy from
+ * @size: amount of bytes to copy (0 to copy the whole binary)
+ *
+ * actual copy of FW binary data to device, shared by static and dynamic loaders
+ */
+static int hl_fw_copy_fw_to_device(struct hl_device *hdev,
+ const struct firmware *fw, void __iomem *dst,
+ u32 src_offset, u32 size)
+{
+ const void *fw_data;
+
+ /* size 0 indicates to copy the whole file */
+ if (!size)
+ size = fw->size;
+
+ if (src_offset + size > fw->size) {
+ dev_err(hdev->dev,
+ "size to copy(%u) and offset(%u) are invalid\n",
+ size, src_offset);
+ return -EINVAL;
+ }
+
+ fw_data = (const void *) fw->data;
+
+ memcpy_toio(dst, fw_data + src_offset, size);
+ return 0;
+}
+
/**
* hl_fw_load_fw_to_device() - Load F/W code to device's memory.
*
@@ -70,33 +126,15 @@ int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name,
void __iomem *dst, u32 src_offset, u32 size)
{
const struct firmware *fw;
- const void *fw_data;
- size_t fw_size;
int rc;
rc = hl_request_fw(hdev, &fw, fw_name);
if (rc)
return rc;
- fw_size = fw->size;
-
- if (size - src_offset > fw_size) {
- dev_err(hdev->dev,
- "size to copy(%u) and offset(%u) are invalid\n",
- size, src_offset);
- rc = -EINVAL;
- goto out;
- }
-
- if (size)
- fw_size = size;
-
- fw_data = (const void *) fw->data;
+ rc = hl_fw_copy_fw_to_device(hdev, fw, dst, src_offset, size);
- memcpy_toio(dst, fw_data + src_offset, fw_size);
-
-out:
- release_firmware(fw);
+ hl_release_firmware(fw);
return rc;
}
@@ -882,12 +920,15 @@ static int hl_fw_read_preboot_caps(struct hl_device *hdev,
*/
prop->dynamic_fw_load = 0;
+ /* initialize FW loader once we know what load protocol is used */
+ hdev->asic_funcs->init_firmware_loader(hdev);
+
dev_dbg(hdev->dev, "Attempting %s FW load\n",
prop->dynamic_fw_load ? "dynamic" : "legacy");
return 0;
}
-static int hl_read_device_fw_version(struct hl_device *hdev,
+static int hl_fw_static_read_device_fw_version(struct hl_device *hdev,
enum hl_fw_component fwc)
{
struct fw_load_mgr *fw_loader = &hdev->fw_loader;
@@ -932,19 +973,21 @@ static int hl_read_device_fw_version(struct hl_device *hdev,
return 0;
}
-static int hl_fw_read_preboot_status_legacy(struct hl_device *hdev,
- u32 cpu_boot_status_reg, u32 cpu_security_boot_status_reg,
- u32 boot_err0_reg, u32 timeout)
+/**
+ * hl_fw_preboot_update_state - update internal data structures during
+ * handshake with preboot
+ *
+ *
+ * @hdev: pointer to the habanalabs device structure
+ *
+ * @return 0 on success, otherwise non-zero error code
+ */
+static void hl_fw_preboot_update_state(struct hl_device *hdev)
{
struct asic_fixed_properties *prop = &hdev->asic_prop;
- u32 security_status;
- int rc;
-
- rc = hl_read_device_fw_version(hdev, FW_COMP_PREBOOT);
- if (rc)
- return rc;
+ u32 preboot_caps;
- security_status = prop->fw_preboot_caps_map;
+ preboot_caps = prop->fw_preboot_caps_map;
/* We read security status multiple times during boot:
* 1. preboot - a. Check whether the security status bits are valid
@@ -959,29 +1002,42 @@ static int hl_fw_read_preboot_status_legacy(struct hl_device *hdev,
* Check security status bit (CPU_BOOT_DEV_STS0_ENABLED), if it is set
* check security enabled bit (CPU_BOOT_DEV_STS0_SECURITY_EN)
*/
- if (security_status & CPU_BOOT_DEV_STS0_ENABLED) {
+ if (preboot_caps & CPU_BOOT_DEV_STS0_ENABLED) {
prop->fw_security_status_valid = 1;
/* FW security should be derived from PCI ID, we keep this
* check for backward compatibility
*/
- if (security_status & CPU_BOOT_DEV_STS0_SECURITY_EN)
+ if (preboot_caps & CPU_BOOT_DEV_STS0_SECURITY_EN)
prop->fw_security_disabled = false;
- if (security_status & CPU_BOOT_DEV_STS0_FW_HARD_RST_EN)
+ if (preboot_caps & CPU_BOOT_DEV_STS0_FW_HARD_RST_EN)
prop->hard_reset_done_by_fw = true;
} else {
prop->fw_security_status_valid = 0;
}
dev_dbg(hdev->dev, "Firmware preboot security status %#x\n",
- security_status);
+ preboot_caps);
dev_dbg(hdev->dev, "Firmware preboot hard-reset is %s\n",
prop->hard_reset_done_by_fw ? "enabled" : "disabled");
dev_info(hdev->dev, "firmware-level security is %s\n",
prop->fw_security_disabled ? "disabled" : "enabled");
+}
+
+static int hl_fw_static_read_preboot_status(struct hl_device *hdev,
+ u32 cpu_boot_status_reg, u32 cpu_security_boot_status_reg,
+ u32 boot_err0_reg, u32 timeout)
+{
+ int rc;
+
+ rc = hl_fw_static_read_device_fw_version(hdev, FW_COMP_PREBOOT);
+ if (rc)
+ return rc;
+
+ hl_fw_preboot_update_state(hdev);
return 0;
}
@@ -992,8 +1048,6 @@ int hl_fw_read_preboot_status(struct hl_device *hdev, u32 cpu_boot_status_reg,
{
int rc;
- hdev->asic_funcs->init_firmware_loader(hdev);
-
/* pldm was added for cases in which we use preboot on pldm and want
* to load boot fit, but we can't wait for preboot because it runs
* very slowly
@@ -1012,7 +1066,7 @@ int hl_fw_read_preboot_status(struct hl_device *hdev, u32 cpu_boot_status_reg,
return rc;
if (!hdev->asic_prop.dynamic_fw_load)
- return hl_fw_read_preboot_status_legacy(hdev, cpu_boot_status_reg,
+ return hl_fw_static_read_preboot_status(hdev, cpu_boot_status_reg,
cpu_boot_caps_reg, boot_err0_reg,
timeout);
@@ -1059,7 +1113,7 @@ static void hl_fw_dynamic_report_error_status(struct hl_device *hdev,
*
* @hdev: pointer to the habanalabs device structure
* @fw_loader: managing structure for loading device's FW
- * @lkd_cmd: LKD to FW cmd code
+ * @cmd: LKD to FW cmd code
* @size: size of next FW component to be loaded (0 if not necessary)
*
* LDK to FW exact command layout is defined at struct comms_command.
@@ -1072,12 +1126,45 @@ static void hl_fw_dynamic_send_cmd(struct hl_device *hdev,
struct fw_load_mgr *fw_loader,
enum comms_cmd cmd, unsigned int size)
{
- struct comms_command lkd_cmd;
+ struct cpu_dyn_regs *dyn_regs;
+ u32 val;
- lkd_cmd.val = FIELD_PREP(COMMS_COMMAND_CMD_MASK, cmd);
- lkd_cmd.val |= FIELD_PREP(COMMS_COMMAND_SIZE_MASK, size);
+ dyn_regs = &fw_loader->dynamic_loader.comm_desc.cpu_dyn_regs;
- WREG32(fw_loader->kmd_msg_to_cpu_reg, lkd_cmd.val);
+ val = FIELD_PREP(COMMS_COMMAND_CMD_MASK, cmd);
+ val |= FIELD_PREP(COMMS_COMMAND_SIZE_MASK, size);
+
+ WREG32(le32_to_cpu(dyn_regs->kmd_msg_to_cpu), val);
+}
+
+/**
+ * hl_fw_dynamic_extract_fw_response - update the FW response
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @fw_loader: managing structure for loading device's FW
+ * @response: FW response
+ * @status: the status read from CPU status register
+ *
+ * @return 0 on success, otherwise non-zero error code
+ */
+static int hl_fw_dynamic_extract_fw_response(struct hl_device *hdev,
+ struct fw_load_mgr *fw_loader,
+ struct fw_response *response,
+ u32 status)
+{
+ response->status = FIELD_GET(COMMS_STATUS_STATUS_MASK, status);
+ response->ram_offset = FIELD_GET(COMMS_STATUS_OFFSET_MASK, status) <<
+ COMMS_STATUS_OFFSET_ALIGN_SHIFT;
+ response->ram_type = FIELD_GET(COMMS_STATUS_RAM_TYPE_MASK, status);
+
+ if ((response->ram_type != COMMS_SRAM) &&
+ (response->ram_type != COMMS_DRAM)) {
+ dev_err(hdev->dev, "FW status: invalid RAM type %u\n",
+ response->ram_type);
+ return -EIO;
+ }
+
+ return 0;
}
/**
@@ -1098,13 +1185,16 @@ static int hl_fw_dynamic_wait_for_status(struct hl_device *hdev,
enum comms_sts expected_status,
u32 timeout)
{
+ struct cpu_dyn_regs *dyn_regs;
u32 status;
int rc;
+ dyn_regs = &fw_loader->dynamic_loader.comm_desc.cpu_dyn_regs;
+
/* Wait for expected status */
rc = hl_poll_timeout(
hdev,
- fw_loader->cpu_cmd_status_to_host_reg,
+ dyn_regs->cpu_cmd_status_to_host,
status,
FIELD_GET(COMMS_STATUS_STATUS_MASK, status) == expected_status,
10000,
@@ -1116,7 +1206,17 @@ static int hl_fw_dynamic_wait_for_status(struct hl_device *hdev,
return -EIO;
}
- return 0;
+ /*
+ * skip storing FW response for NOOP to preserve the actual desired
+ * FW status
+ */
+ if (expected_status == COMMS_STS_NOOP)
+ return 0;
+
+ rc = hl_fw_dynamic_extract_fw_response(hdev, fw_loader,
+ &fw_loader->dynamic_loader.response,
+ status);
+ return rc;
}
/**
@@ -1147,7 +1247,7 @@ static int hl_fw_dynamic_send_clear_cmd(struct hl_device *hdev,
*
* @hdev: pointer to the habanalabs device structure
* @fw_loader: managing structure for loading device's FW
- * @lkd_cmd: LKD to FW cmd code
+ * @cmd: LKD to FW cmd code
* @size: size of next FW component to be loaded (0 if not necessary)
* @wait_ok: if true also wait for OK response from FW
* @timeout: timeout for status wait
@@ -1217,6 +1317,353 @@ static int hl_fw_dynamic_send_protocol_cmd(struct hl_device *hdev,
return 0;
}
+/**
+ * hl_fw_compat_crc32 - CRC compatible with FW
+ *
+ * @data: pointer to the data
+ * @size: size of the data
+ *
+ * @return the CRC32 result
+ *
+ * NOTE: kernel's CRC32 differ's from standard CRC32 calculation.
+ * in order to be aligned we need to flip the bits of both the input
+ * initial CRC and kernel's CRC32 result.
+ * in addition both sides use initial CRC of 0,
+ */
+static u32 hl_fw_compat_crc32(u8 *data, size_t size)
+{
+ return ~crc32_le(~((u32)0), data, size);
+}
+
+/**
+ * hl_fw_dynamic_validate_memory_bound - validate memory bounds for memory
+ * transfer (image or descriptor) between
+ * host and FW
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @addr: device address of memory transfer
+ * @size: memory transter size
+ * @region: PCI memory region
+ *
+ * @return 0 on success, otherwise non-zero error code
+ */
+static int hl_fw_dynamic_validate_memory_bound(struct hl_device *hdev,
+ u64 addr, size_t size,
+ struct pci_mem_region *region)
+{
+ u64 end_addr;
+
+ /* now make sure that the memory transfer is within region's bounds */
+ end_addr = addr + size;
+ if (end_addr >= region->region_base + region->region_size) {
+ dev_err(hdev->dev,
+ "dynamic FW load: memory transfer end address out of memory region bounds. addr: %llx\n",
+ end_addr);
+ return -EIO;
+ }
+
+ /*
+ * now make sure memory transfer is within predefined BAR bounds.
+ * this is to make sure we do not need to set the bar (e.g. for DRAM
+ * memory transfers)
+ */
+ if (end_addr >= region->region_base - region->offset_in_bar +
+ FW_IMAGE_MAX_BAR_OFFSET) {
+ dev_err(hdev->dev,
+ "FW image beyond PCI BAR bounds\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/**
+ * hl_fw_dynamic_validate_descriptor - validate FW descriptor
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @fw_loader: managing structure for loading device's FW
+ * @fw_desc: the descriptor form FW
+ *
+ * @return 0 on success, otherwise non-zero error code
+ */
+static int hl_fw_dynamic_validate_descriptor(struct hl_device *hdev,
+ struct fw_load_mgr *fw_loader,
+ struct lkd_fw_comms_desc *fw_desc)
+{
+ struct pci_mem_region *region;
+ enum pci_region region_id;
+ size_t data_size;
+ u32 data_crc32;
+ u8 *data_ptr;
+ u64 addr;
+ int rc;
+
+ if (le32_to_cpu(fw_desc->header.magic) != HL_COMMS_DESC_MAGIC) {
+ dev_err(hdev->dev, "Invalid magic for dynamic FW descriptor (%x)\n",
+ fw_desc->header.magic);
+ return -EIO;
+ }
+
+ if (fw_desc->header.version != HL_COMMS_DESC_VER) {
+ dev_err(hdev->dev, "Invalid version for dynamic FW descriptor (%x)\n",
+ fw_desc->header.version);
+ return -EIO;
+ }
+
+ /*
+ * calc CRC32 of data without header.
+ * note that no alignment/stride address issues here as all structures
+ * are 64 bit padded
+ */
+ data_size = sizeof(struct lkd_fw_comms_desc) -
+ sizeof(struct comms_desc_header);
+ data_ptr = (u8 *)fw_desc + sizeof(struct comms_desc_header);
+
+ if (le16_to_cpu(fw_desc->header.size) != data_size) {
+ dev_err(hdev->dev,
+ "Invalid descriptor size 0x%x, expected size 0x%lx\n",
+ fw_desc->header.size, data_size);
+ return -EIO;
+ }
+
+ data_crc32 = hl_fw_compat_crc32(data_ptr, data_size);
+
+ if (data_crc32 != le32_to_cpu(fw_desc->header.crc32)) {
+ dev_err(hdev->dev,
+ "CRC32 mismatch for dynamic FW descriptor (%x:%x)\n",
+ data_crc32, fw_desc->header.crc32);
+ return -EIO;
+ }
+
+ /* find memory region to which to copy the image */
+ addr = le64_to_cpu(fw_desc->img_addr);
+ region_id = hl_get_pci_memory_region(hdev, addr);
+ if ((region_id != PCI_REGION_SRAM) &&
+ ((region_id != PCI_REGION_DRAM))) {
+ dev_err(hdev->dev,
+ "Invalid region to copy FW image address=%llx\n", addr);
+ return -EIO;
+ }
+
+ region = &hdev->pci_mem_region[region_id];
+
+ /* store the region for the copy stage */
+ fw_loader->dynamic_loader.image_region = region;
+
+ /*
+ * here we know that the start address is valid, now make sure that the
+ * image is within region's bounds
+ */
+ rc = hl_fw_dynamic_validate_memory_bound(hdev, addr,
+ fw_loader->dynamic_loader.fw_image_size,
+ region);
+ if (rc) {
+ dev_err(hdev->dev,
+ "invalid mem transfer request for FW image\n");
+ return rc;
+ }
+
+ return 0;
+}
+
+static int hl_fw_dynamic_validate_response(struct hl_device *hdev,
+ struct fw_response *response,
+ struct pci_mem_region *region)
+{
+ u64 device_addr;
+ int rc;
+
+ device_addr = region->region_base + response->ram_offset;
+
+ /*
+ * validate that the descriptor is within region's bounds
+ * Note that as the start address was supplied according to the RAM
+ * type- testing only the end address is enough
+ */
+ rc = hl_fw_dynamic_validate_memory_bound(hdev, device_addr,
+ sizeof(struct lkd_fw_comms_desc),
+ region);
+ return rc;
+}
+
+/**
+ * hl_fw_dynamic_read_and_validate_descriptor - read and validate FW descriptor
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @fw_loader: managing structure for loading device's FW
+ *
+ * @return 0 on success, otherwise non-zero error code
+ */
+static int hl_fw_dynamic_read_and_validate_descriptor(struct hl_device *hdev,
+ struct fw_load_mgr *fw_loader)
+{
+ struct lkd_fw_comms_desc *fw_desc;
+ struct pci_mem_region *region;
+ struct fw_response *response;
+ enum pci_region region_id;
+ void __iomem *src;
+ int rc;
+
+ fw_desc = &fw_loader->dynamic_loader.comm_desc;
+ response = &fw_loader->dynamic_loader.response;
+
+ region_id = (response->ram_type == COMMS_SRAM) ?
+ PCI_REGION_SRAM : PCI_REGION_DRAM;
+
+ region = &hdev->pci_mem_region[region_id];
+
+ rc = hl_fw_dynamic_validate_response(hdev, response, region);
+ if (rc) {
+ dev_err(hdev->dev,
+ "invalid mem transfer request for FW descriptor\n");
+ return rc;
+ }
+
+ /* extract address copy the descriptor from */
+ src = hdev->pcie_bar[region->bar_id] + region->offset_in_bar +
+ response->ram_offset;
+ memcpy_fromio(fw_desc, src, sizeof(struct lkd_fw_comms_desc));
+
+ return hl_fw_dynamic_validate_descriptor(hdev, fw_loader, fw_desc);
+}
+
+/**
+ * hl_fw_dynamic_request_descriptor - handshake with CPU to get FW descriptor
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @fw_loader: managing structure for loading device's FW
+ * @next_image_size: size to allocate for next FW component
+ *
+ * @return 0 on success, otherwise non-zero error code
+ */
+static int hl_fw_dynamic_request_descriptor(struct hl_device *hdev,
+ struct fw_load_mgr *fw_loader,
+ size_t next_image_size)
+{
+ int rc;
+
+ rc = hl_fw_dynamic_send_protocol_cmd(hdev, fw_loader, COMMS_PREP_DESC,
+ next_image_size, true,
+ fw_loader->cpu_timeout);
+ if (rc)
+ return rc;
+
+ return hl_fw_dynamic_read_and_validate_descriptor(hdev, fw_loader);
+}
+
+/**
+ * hl_fw_dynamic_read_device_fw_version - read FW version to exposed properties
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @fwc: the firmware component
+ * @fw_version: fw component's version string
+ */
+static void hl_fw_dynamic_read_device_fw_version(struct hl_device *hdev,
+ enum hl_fw_component fwc,
+ const char *fw_version)
+{
+ char *dest;
+
+ switch (fwc) {
+ case FW_COMP_BOOT_FIT:
+ dest = hdev->asic_prop.uboot_ver;
+ break;
+ case FW_COMP_PREBOOT:
+ dest = hdev->asic_prop.preboot_ver;
+ break;
+ default:
+ dev_warn(hdev->dev, "Undefined FW component: %d\n", fwc);
+ }
+
+ strscpy(dest, fw_version, VERSION_MAX_LEN);
+}
+
+/**
+ * hl_fw_dynamic_copy_image - copy image to memory allocated by the FW
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @fw: fw descriptor
+ * @fw_loader: managing structure for loading device's FW
+ */
+static int hl_fw_dynamic_copy_image(struct hl_device *hdev,
+ const struct firmware *fw,
+ struct fw_load_mgr *fw_loader)
+{
+ struct lkd_fw_comms_desc *fw_desc;
+ struct pci_mem_region *region;
+ void __iomem *dest;
+ u64 addr;
+ int rc;
+
+ fw_desc = &fw_loader->dynamic_loader.comm_desc;
+ addr = le64_to_cpu(fw_desc->img_addr);
+
+ /* find memory region to which to copy the image */
+ region = fw_loader->dynamic_loader.image_region;
+
+ dest = hdev->pcie_bar[region->bar_id] + region->offset_in_bar +
+ (addr - region->region_base);
+
+ rc = hl_fw_copy_fw_to_device(hdev, fw, dest,
+ fw_loader->boot_fit_img.src_off,
+ fw_loader->boot_fit_img.copy_size);
+
+ return rc;
+}
+
+/**
+ * hl_fw_dynamic_load_boot_fit - load boot fit using dynamic protocol
+ *
+ * @hdev: pointer to the habanalabs device structure
+ * @fw_loader: managing structure for loading device's FW
+ *
+ * @return 0 on success, otherwise non-zero error code
+ */
+static int hl_fw_dynamic_load_boot_fit(struct hl_device *hdev,
+ struct fw_load_mgr *fw_loader)
+{
+ const struct firmware *fw;
+ int rc = 0;
+
+ /* request FW in order to communicate to FW the size to be allocated */
+ rc = hl_request_fw(hdev, &fw, fw_loader->boot_fit_img.image_name);
+ if (rc)
+ return rc;
+
+ /* store the image size for future validation */
+ fw_loader->dynamic_loader.fw_image_size = fw->size;
+
+ rc = hl_fw_dynamic_request_descriptor(hdev, fw_loader, fw->size);
+ if (rc)
+ goto release_fw;
+
+ /* read preboot version */
+ hl_fw_dynamic_read_device_fw_version(hdev, FW_COMP_PREBOOT,
+ fw_loader->dynamic_loader.comm_desc.cur_fw_ver);
+
+ /* update state during preboot handshake */
+ hl_fw_preboot_update_state(hdev);
+
+ /* copy boot fit to space allocated by FW */
+ rc = hl_fw_dynamic_copy_image(hdev, fw, fw_loader);
+ if (rc)
+ goto release_fw;
+
+ rc = hl_fw_dynamic_send_protocol_cmd(hdev, fw_loader, COMMS_DATA_RDY,
+ 0, true,
+ fw_loader->cpu_timeout);
+ if (rc)
+ goto release_fw;
+
+ rc = hl_fw_dynamic_send_protocol_cmd(hdev, fw_loader, COMMS_EXEC,
+ 0, false,
+ fw_loader->boot_fit_timeout);
+
+release_fw:
+ hl_release_firmware(fw);
+ return rc;
+}
+
/**
* hl_fw_dynamic_init_cpu - initialize the device CPU using dynamic protocol
*
@@ -1238,11 +1685,37 @@ static int hl_fw_dynamic_send_protocol_cmd(struct hl_device *hdev,
static int hl_fw_dynamic_init_cpu(struct hl_device *hdev,
struct fw_load_mgr *fw_loader)
{
+ struct cpu_dyn_regs *dyn_regs;
int rc;
rc = hl_fw_dynamic_send_protocol_cmd(hdev, fw_loader, COMMS_RST_STATE,
0, true,
fw_loader->cpu_timeout);
+ if (rc)
+ goto protocol_err;
+
+ if (!(hdev->fw_components & FW_TYPE_BOOT_CPU)) {
+ rc = hl_fw_dynamic_request_descriptor(hdev, fw_loader, 0);
+ if (rc)
+ goto protocol_err;
+
+ /* read preboot version */
+ hl_fw_dynamic_read_device_fw_version(hdev, FW_COMP_PREBOOT,
+ fw_loader->dynamic_loader.comm_desc.cur_fw_ver);
+ return 0;
+ }
+
+ /* load boot fit to FW */
+ rc = hl_fw_dynamic_load_boot_fit(hdev, fw_loader);
+ if (rc)
+ goto protocol_err;
+
+ return 0;
+
+protocol_err:
+ dyn_regs = &fw_loader->dynamic_loader.comm_desc.cpu_dyn_regs;
+ fw_read_errors(hdev, le32_to_cpu(dyn_regs->cpu_boot_err0),
+ le32_to_cpu(dyn_regs->cpu_boot_status));
return rc;
}
@@ -1267,13 +1740,13 @@ static int hl_fw_static_init_cpu(struct hl_device *hdev,
return 0;
/* init common loader parameters */
- static_loader = &fw_loader->static_loader;
- cpu_msg_status_reg = fw_loader->cpu_cmd_status_to_host_reg;
- msg_to_cpu_reg = fw_loader->kmd_msg_to_cpu_reg;
cpu_timeout = fw_loader->cpu_timeout;
/* init static loader parameters */
- cpu_security_boot_status_reg = static_loader->cpu_boot_status_reg;
+ static_loader = &fw_loader->static_loader;
+ cpu_msg_status_reg = static_loader->cpu_cmd_status_to_host_reg;
+ msg_to_cpu_reg = static_loader->kmd_msg_to_cpu_reg;
+ cpu_security_boot_status_reg = static_loader->cpu_boot_dev_status_reg;
cpu_boot_status_reg = static_loader->cpu_boot_status_reg;
dev_info(hdev->dev, "Going to wait for device boot (up to %lds)\n",
@@ -1336,7 +1809,7 @@ static int hl_fw_static_init_cpu(struct hl_device *hdev,
dev_dbg(hdev->dev, "uboot status = %d\n", status);
/* Read U-Boot version now in case we will later fail */
- hl_read_device_fw_version(hdev, FW_COMP_BOOT_FIT);
+ hl_fw_static_read_device_fw_version(hdev, FW_COMP_BOOT_FIT);
/* Clear reset status since we need to read it again from boot CPU */
prop->hard_reset_done_by_fw = false;
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index fff282774739..161d33bcc79a 100644
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -846,6 +846,8 @@ struct pci_mem_region {
* struct static_fw_load_mgr - static FW load manager
* @preboot_version_max_off: max offset to preboot version
* @boot_fit_version_max_off: max offset to boot fit version
+ * @kmd_msg_to_cpu_reg: register address for KDM->CPU messages
+ * @cpu_cmd_status_to_host_reg: register address for CPU command status response
* @cpu_boot_status_reg: boot status register
* @cpu_boot_dev_status_reg: boot device status register
* @boot_err0_reg: boot error register
@@ -856,6 +858,8 @@ struct pci_mem_region {
struct static_fw_load_mgr {
u64 preboot_version_max_off;
u64 boot_fit_version_max_off;
+ u32 kmd_msg_to_cpu_reg;
+ u32 cpu_cmd_status_to_host_reg;
u32 cpu_boot_status_reg;
u32 cpu_boot_dev_status_reg;
u32 boot_err0_reg;
@@ -864,37 +868,68 @@ struct static_fw_load_mgr {
u32 sram_offset_mask;
};
+/**
+ * struct fw_response - FW response to LKD command
+ * @ram_offset: descriptor offset into the RAM
+ * @ram_type: RAM type containing the descriptor (SRAM/DRAM)
+ * @status: command status
+ */
+struct fw_response {
+ u32 ram_offset;
+ u8 ram_type;
+ u8 status;
+};
+
/**
* struct dynamic_fw_load_mgr - dynamic FW load manager
- * TODO: currently empty, will be filled once boot stages implementation will
- * progress.
+ * @response: FW to LKD response
+ * @comm_desc: the communication descriptor with FW
+ * @image_region: region to copy the FW image to
+ * @fw_image_size: FW image size
*/
struct dynamic_fw_load_mgr {
+ struct fw_response response;
+ struct lkd_fw_comms_desc comm_desc;
+ struct pci_mem_region *image_region;
+ size_t fw_image_size;
+};
+
+/**
+ * struct fw_image_props - properties of FW image
+ * @image_name: name of the image
+ * @src_off: offset in src FW to copy from
+ * @copy_size: amount of bytes to copy (0 to copy the whole binary)
+ */
+struct fw_image_props {
+ char *image_name;
+ u32 src_off;
+ u32 copy_size;
};
/**
* struct fw_load_mgr - manager FW loading process
- * @kmd_msg_to_cpu_reg: register address for KDM->CPU messages
- * @cpu_cmd_status_to_host_reg: register address for CPU command status response
+ * @dynamic_loader: specific structure for dynamic load
+ * @static_loader: specific structure for static load
+ * @boot_fit_img: boot fit image properties
+ * @linux_img: linux image properties
* @cpu_timeout: CPU response timeout in usec
* @boot_fit_timeout: Boot fit load timeout in usec
* @skip_bmc: should BMC be skipped
* @sram_bar_id: SRAM bar ID
- * @static_loader: specific structure for static load
- * @dynamic_loader: specific structure for dynamic load
+ * @dram_bar_id: DRAM bar ID
*/
struct fw_load_mgr {
- u32 kmd_msg_to_cpu_reg;
- u32 cpu_cmd_status_to_host_reg;
+ union {
+ struct dynamic_fw_load_mgr dynamic_loader;
+ struct static_fw_load_mgr static_loader;
+ };
+ struct fw_image_props boot_fit_img;
+ struct fw_image_props linux_img;
u32 cpu_timeout;
u32 boot_fit_timeout;
u8 skip_bmc;
u8 sram_bar_id;
-
- union {
- struct static_fw_load_mgr static_loader;
- struct dynamic_fw_load_mgr dynamic_loader;
- };
+ u8 dram_bar_id;
};
/**
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 0b03c6946748..e3a64600dc3b 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -3732,7 +3732,23 @@ static int gaudi_load_boot_fit_to_device(struct hl_device *hdev)
static void gaudi_init_dynamic_firmware_loader(struct hl_device *hdev)
{
+ struct dynamic_fw_load_mgr *dynamic_loader;
+ struct cpu_dyn_regs *dyn_regs;
+ dynamic_loader = &hdev->fw_loader.dynamic_loader;
+
+ /*
+ * here we update initial values for few specific dynamic regs (as
+ * before reading the first descriptor from FW those value has to be
+ * hard-coded) in later stages of the protocol those values will be
+ * updated automatically by reading the FW descriptor so data there
+ * will always be up-to-date
+ */
+ dyn_regs = &dynamic_loader->comm_desc.cpu_dyn_regs;
+ dyn_regs->kmd_msg_to_cpu =
+ cpu_to_le32(mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU);
+ dyn_regs->cpu_cmd_status_to_host =
+ cpu_to_le32(mmCPU_CMD_STATUS_TO_HOST);
}
static void gaudi_init_static_firmware_loader(struct hl_device *hdev)
@@ -3743,6 +3759,8 @@ static void gaudi_init_static_firmware_loader(struct hl_device *hdev)
static_loader->preboot_version_max_off = SRAM_SIZE - VERSION_MAX_LEN;
static_loader->boot_fit_version_max_off = SRAM_SIZE - VERSION_MAX_LEN;
+ static_loader->kmd_msg_to_cpu_reg = mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU;
+ static_loader->cpu_cmd_status_to_host_reg = mmCPU_CMD_STATUS_TO_HOST;
static_loader->cpu_boot_status_reg = mmPSOC_GLOBAL_CONF_CPU_BOOT_STATUS;
static_loader->cpu_boot_dev_status_reg = mmCPU_BOOT_DEV_STS0;
static_loader->boot_err0_reg = mmCPU_BOOT_ERR0;
@@ -3757,12 +3775,13 @@ static void gaudi_init_firmware_loader(struct hl_device *hdev)
struct fw_load_mgr *fw_loader = &hdev->fw_loader;
/* fill common fields */
- fw_loader->kmd_msg_to_cpu_reg = mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU;
- fw_loader->cpu_cmd_status_to_host_reg = mmCPU_CMD_STATUS_TO_HOST;
+ fw_loader->boot_fit_img.image_name = GAUDI_BOOT_FIT_FILE;
+ fw_loader->linux_img.image_name = GAUDI_LINUX_FW_FILE;
fw_loader->cpu_timeout = GAUDI_CPU_TIMEOUT_USEC;
fw_loader->boot_fit_timeout = GAUDI_BOOT_FIT_REQ_TIMEOUT_USEC;
fw_loader->skip_bmc = !hdev->bmc_enable;
fw_loader->sram_bar_id = SRAM_BAR_ID;
+ fw_loader->dram_bar_id = HBM_BAR_ID;
if (prop->dynamic_fw_load)
gaudi_init_dynamic_firmware_loader(hdev);
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index c3a241227fe0..469587a63804 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -2435,7 +2435,23 @@ static int goya_load_boot_fit_to_device(struct hl_device *hdev)
static void goya_init_dynamic_firmware_loader(struct hl_device *hdev)
{
+ struct dynamic_fw_load_mgr *dynamic_loader;
+ struct cpu_dyn_regs *dyn_regs;
+ dynamic_loader = &hdev->fw_loader.dynamic_loader;
+
+ /*
+ * here we update initial values for few specific dynamic regs (as
+ * before reading the first descriptor from FW those value has to be
+ * hard-coded) in later stages of the protocol those values will be
+ * updated automatically by reading the FW descriptor so data there
+ * will always be up-to-date
+ */
+ dyn_regs = &dynamic_loader->comm_desc.cpu_dyn_regs;
+ dyn_regs->kmd_msg_to_cpu =
+ cpu_to_le32(mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU);
+ dyn_regs->cpu_cmd_status_to_host =
+ cpu_to_le32(mmCPU_CMD_STATUS_TO_HOST);
}
static void goya_init_static_firmware_loader(struct hl_device *hdev)
@@ -2446,6 +2462,8 @@ static void goya_init_static_firmware_loader(struct hl_device *hdev)
static_loader->preboot_version_max_off = SRAM_SIZE - VERSION_MAX_LEN;
static_loader->boot_fit_version_max_off = SRAM_SIZE - VERSION_MAX_LEN;
+ static_loader->kmd_msg_to_cpu_reg = mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU;
+ static_loader->cpu_cmd_status_to_host_reg = mmCPU_CMD_STATUS_TO_HOST;
static_loader->cpu_boot_status_reg = mmPSOC_GLOBAL_CONF_CPU_BOOT_STATUS;
static_loader->cpu_boot_dev_status_reg = mmCPU_BOOT_DEV_STS0;
static_loader->boot_err0_reg = mmCPU_BOOT_ERR0;
@@ -2460,12 +2478,13 @@ static void goya_init_firmware_loader(struct hl_device *hdev)
struct fw_load_mgr *fw_loader = &hdev->fw_loader;
/* fill common fields */
- fw_loader->kmd_msg_to_cpu_reg = mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU;
- fw_loader->cpu_cmd_status_to_host_reg = mmCPU_CMD_STATUS_TO_HOST;
+ fw_loader->boot_fit_img.image_name = GOYA_BOOT_FIT_FILE;
+ fw_loader->linux_img.image_name = GOYA_LINUX_FW_FILE;
fw_loader->cpu_timeout = GOYA_CPU_TIMEOUT_USEC;
fw_loader->boot_fit_timeout = GOYA_BOOT_FIT_REQ_TIMEOUT_USEC;
fw_loader->skip_bmc = false;
fw_loader->sram_bar_id = SRAM_CFG_BAR_ID;
+ fw_loader->dram_bar_id = DDR_BAR_ID;
if (prop->dynamic_fw_load)
goya_init_dynamic_firmware_loader(hdev);
--
2.25.1
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