diff options
Diffstat (limited to 'drivers/misc/habanalabs/common/device.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/device.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c index c2641030d9ffb..97c7c86580e61 100644 --- a/drivers/misc/habanalabs/common/device.c +++ b/drivers/misc/habanalabs/common/device.c @@ -311,9 +311,15 @@ static void device_hard_reset_pending(struct work_struct *work) container_of(work, struct hl_device_reset_work, reset_work.work); struct hl_device *hdev = device_reset_work->hdev; + u32 flags; int rc; - rc = hl_device_reset(hdev, HL_RESET_HARD | HL_RESET_FROM_RESET_THREAD); + flags = HL_RESET_HARD | HL_RESET_FROM_RESET_THREAD; + + if (device_reset_work->fw_reset) + flags |= HL_RESET_FW; + + rc = hl_device_reset(hdev, flags); if ((rc == -EBUSY) && !hdev->device_fini_pending) { dev_info(hdev->dev, "Could not reset device. will try again in %u seconds", @@ -702,7 +708,7 @@ static void take_release_locks(struct hl_device *hdev) mutex_unlock(&hdev->fpriv_list_lock); } -static void cleanup_resources(struct hl_device *hdev, bool hard_reset) +static void cleanup_resources(struct hl_device *hdev, bool hard_reset, bool fw_reset) { if (hard_reset) device_late_fini(hdev); @@ -712,7 +718,7 @@ static void cleanup_resources(struct hl_device *hdev, bool hard_reset) * completions from H/W and we won't have any accesses from the * H/W to the host machine */ - hdev->asic_funcs->halt_engines(hdev, hard_reset); + hdev->asic_funcs->halt_engines(hdev, hard_reset, fw_reset); /* Go over all the queues, release all CS and their jobs */ hl_cs_rollback_all(hdev); @@ -922,7 +928,7 @@ static void device_disable_open_processes(struct hl_device *hdev) int hl_device_reset(struct hl_device *hdev, u32 flags) { u64 idle_mask[HL_BUSY_ENGINES_MASK_EXT_SIZE] = {0}; - bool hard_reset, from_hard_reset_thread, hard_instead_soft = false; + bool hard_reset, from_hard_reset_thread, fw_reset, hard_instead_soft = false; int i, rc; if (!hdev->init_done) { @@ -933,6 +939,7 @@ int hl_device_reset(struct hl_device *hdev, u32 flags) hard_reset = !!(flags & HL_RESET_HARD); from_hard_reset_thread = !!(flags & HL_RESET_FROM_RESET_THREAD); + fw_reset = !!(flags & HL_RESET_FW); if (!hard_reset && !hdev->supports_soft_reset) { hard_instead_soft = true; @@ -984,11 +991,13 @@ do_reset: else hdev->curr_reset_cause = HL_RESET_CAUSE_UNKNOWN; - /* - * if reset is due to heartbeat, device CPU is no responsive in - * which case no point sending PCI disable message to it + /* If reset is due to heartbeat, device CPU is no responsive in + * which case no point sending PCI disable message to it. + * + * If F/W is performing the reset, no need to send it a message to disable + * PCI access */ - if (hard_reset && !(flags & HL_RESET_HEARTBEAT)) { + if (hard_reset && !(flags & (HL_RESET_HEARTBEAT | HL_RESET_FW))) { /* Disable PCI access from device F/W so he won't send * us additional interrupts. We disable MSI/MSI-X at * the halt_engines function and we can't have the F/W @@ -1018,6 +1027,8 @@ again: hdev->process_kill_trial_cnt = 0; + hdev->device_reset_work.fw_reset = fw_reset; + /* * Because the reset function can't run from heartbeat work, * we need to call the reset function from a dedicated work. @@ -1028,7 +1039,7 @@ again: return 0; } - cleanup_resources(hdev, hard_reset); + cleanup_resources(hdev, hard_reset, fw_reset); kill_processes: if (hard_reset) { @@ -1062,7 +1073,7 @@ kill_processes: } /* Reset the H/W. It will be in idle state after this returns */ - hdev->asic_funcs->hw_fini(hdev, hard_reset); + hdev->asic_funcs->hw_fini(hdev, hard_reset, fw_reset); if (hard_reset) { hdev->fw_loader.linux_loaded = false; @@ -1587,7 +1598,7 @@ void hl_device_fini(struct hl_device *hdev) hl_hwmon_fini(hdev); - cleanup_resources(hdev, true); + cleanup_resources(hdev, true, false); /* Kill processes here after CS rollback. This is because the process * can't really exit until all its CSs are done, which is what we @@ -1606,7 +1617,7 @@ void hl_device_fini(struct hl_device *hdev) hl_cb_pool_fini(hdev); /* Reset the H/W. It will be in idle state after this returns */ - hdev->asic_funcs->hw_fini(hdev, true); + hdev->asic_funcs->hw_fini(hdev, true, false); hdev->fw_loader.linux_loaded = false; |