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habanalabs: advanced FW loading 

Today driver is able to load a whole FW binary into a specific
location on ASIC. We add support for loading sections from the
same FW binary into different loactions.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Ofir Bitton 2020-10-20 10:45:37 +03:00 committed by Oded Gabbay
parent 977d53a614
commit 9bb86b63d8
4 changed files with 22 additions and 9 deletions
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21
drivers/misc/habanalabs/common/firmware_if.c
View File

@ -20,16 +20,18 @@
* @hdev: pointer to hl_device structure.
* @fw_name: the firmware image name
* @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)
*
* Copy fw code from firmware file to device memory.
*
* Return: 0 on success, non-zero for failure.
*/
int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name,
void __iomem *dst)
void __iomem *dst, u32 src_offset, u32 size)
{
const struct firmware *fw;
const u64 *fw_data;
const void *fw_data;
size_t fw_size;
int rc;
@ -57,9 +59,20 @@ int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name,
goto out;
}
fw_data = (const u64 *) fw->data;
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;
}
memcpy_toio(dst, fw_data, fw_size);
if (size)
fw_size = size;
fw_data = (const void *) fw->data;
memcpy_toio(dst, fw_data + src_offset, fw_size);
out:
release_firmware(fw);

2
drivers/misc/habanalabs/common/habanalabs.h
View File

@ -2028,7 +2028,7 @@ int hl_mmu_if_set_funcs(struct hl_device *hdev);
void hl_mmu_v1_set_funcs(struct hl_device *hdev);
int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name,
void __iomem *dst);
void __iomem *dst, u32 src_offset, u32 size);
int hl_fw_send_pci_access_msg(struct hl_device *hdev, u32 opcode);
int hl_fw_send_cpu_message(struct hl_device *hdev, u32 hw_queue_id, u32 *msg,
u16 len, u32 timeout, long *result);

4
drivers/misc/habanalabs/gaudi/gaudi.c
View File

@ -3529,7 +3529,7 @@ static int gaudi_load_firmware_to_device(struct hl_device *hdev)
dst = hdev->pcie_bar[HBM_BAR_ID] + LINUX_FW_OFFSET;
return hl_fw_load_fw_to_device(hdev, GAUDI_LINUX_FW_FILE, dst);
return hl_fw_load_fw_to_device(hdev, GAUDI_LINUX_FW_FILE, dst, 0, 0);
}
static int gaudi_load_boot_fit_to_device(struct hl_device *hdev)
@ -3538,7 +3538,7 @@ static int gaudi_load_boot_fit_to_device(struct hl_device *hdev)
dst = hdev->pcie_bar[SRAM_BAR_ID] + BOOT_FIT_SRAM_OFFSET;
return hl_fw_load_fw_to_device(hdev, GAUDI_BOOT_FIT_FILE, dst);
return hl_fw_load_fw_to_device(hdev, GAUDI_BOOT_FIT_FILE, dst, 0, 0);
}
static void gaudi_read_device_fw_version(struct hl_device *hdev,

4
drivers/misc/habanalabs/goya/goya.c
View File

@ -2315,7 +2315,7 @@ static int goya_load_firmware_to_device(struct hl_device *hdev)
dst = hdev->pcie_bar[DDR_BAR_ID] + LINUX_FW_OFFSET;
return hl_fw_load_fw_to_device(hdev, GOYA_LINUX_FW_FILE, dst);
return hl_fw_load_fw_to_device(hdev, GOYA_LINUX_FW_FILE, dst, 0, 0);
}
/*
@ -2332,7 +2332,7 @@ static int goya_load_boot_fit_to_device(struct hl_device *hdev)
dst = hdev->pcie_bar[SRAM_CFG_BAR_ID] + BOOT_FIT_SRAM_OFFSET;
return hl_fw_load_fw_to_device(hdev, GOYA_BOOT_FIT_FILE, dst);
return hl_fw_load_fw_to_device(hdev, GOYA_BOOT_FIT_FILE, dst, 0, 0);
}
/*