Messages in this thread Patch in this message | | | From | Oded Gabbay <> | Subject | [PATCH 3/4] habanalabs: read preboot status bits in an earlier stage | Date | Fri, 21 May 2021 20:06:52 +0300 |
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From: Koby Elbaz <kelbaz@habana.ai>
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> --- drivers/misc/habanalabs/common/firmware_if.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c index 17173020ff53..cdec7212f377 100644 --- a/drivers/misc/habanalabs/common/firmware_if.c +++ b/drivers/misc/habanalabs/common/firmware_if.c @@ -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; -- 2.25.1
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