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habanalabs: read preboot status bits in an earlier stage

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On newer releases, host won't be able to trigger an interrupt directly
to the ASIC GIC controller.
To be able to decide whether GIC can/not be used, we must read device's
preboot status bits in a stage that precedes the possible first use of
GIC (when device is in dirty state).

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Koby Elbaz
2021-05-18 15:05:35 +03:00
committed by Oded Gabbay
parent 1242e9f0f4
commit 7feffb6815
1 changed files with 2 additions and 8 deletions
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10
drivers/misc/habanalabs/common/firmware_if.c
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@@ -1159,8 +1159,6 @@ static int hl_fw_static_read_preboot_status(struct hl_device *hdev)
if (rc)
return rc;
hl_fw_preboot_update_state(hdev);
return 0;
}
@@ -1189,6 +1187,8 @@ int hl_fw_read_preboot_status(struct hl_device *hdev, u32 cpu_boot_status_reg,
if (rc)
return rc;
hl_fw_preboot_update_state(hdev);
/* no need to read preboot status in dynamic load */
if (hdev->asic_prop.dynamic_fw_load)
return 0;
@@ -1864,9 +1864,6 @@ static int hl_fw_dynamic_load_image(struct hl_device *hdev,
hl_fw_boot_fit_update_state(hdev,
le32_to_cpu(dyn_regs->cpu_boot_dev_sts0),
le32_to_cpu(dyn_regs->cpu_boot_dev_sts1));
} else {
/* update state during preboot handshake */
hl_fw_preboot_update_state(hdev);
}
/* copy boot fit to space allocated by FW */
@@ -2097,9 +2094,6 @@ static int hl_fw_dynamic_init_cpu(struct hl_device *hdev,
}
if (!(hdev->fw_components & FW_TYPE_BOOT_CPU)) {
/* update the preboot state */
hl_fw_preboot_update_state(hdev);
rc = hl_fw_dynamic_request_descriptor(hdev, fw_loader, 0);
if (rc)
goto protocol_err;