From e3caadf1f9dfc9d62b5ffc3bd73ebac0c8f26b3f Mon Sep 17 00:00:00 2001 From: Jacek Lawrynowicz Date: Tue, 2 Apr 2024 12:49:23 +0200 Subject: accel/ivpu: Remove d3hot_after_power_off WA Always enter D3hot after entering D0i3 an all platforms. This minimizes power usage. Signed-off-by: Jacek Lawrynowicz Reviewed-by: Jeffrey Hugo Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-3-jacek.lawrynowicz@linux.intel.com --- drivers/accel/ivpu/ivpu_drv.c | 20 ++++++++++---------- drivers/accel/ivpu/ivpu_drv.h | 3 +-- drivers/accel/ivpu/ivpu_hw_37xx.c | 4 +--- drivers/accel/ivpu/ivpu_pm.c | 7 ++----- 4 files changed, 14 insertions(+), 20 deletions(-) (limited to 'drivers/accel/ivpu') diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c index 39f6d1b98fd6..303d92753387 100644 --- a/drivers/accel/ivpu/ivpu_drv.c +++ b/drivers/accel/ivpu/ivpu_drv.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (C) 2020-2023 Intel Corporation + * Copyright (C) 2020-2024 Intel Corporation */ #include @@ -387,12 +387,15 @@ int ivpu_shutdown(struct ivpu_device *vdev) { int ret; - ivpu_prepare_for_reset(vdev); + /* Save PCI state before powering down as it sometimes gets corrupted if NPU hangs */ + pci_save_state(to_pci_dev(vdev->drm.dev)); ret = ivpu_hw_power_down(vdev); if (ret) ivpu_warn(vdev, "Failed to power down HW: %d\n", ret); + pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot); + return ret; } @@ -560,11 +563,11 @@ static int ivpu_dev_init(struct ivpu_device *vdev) /* Power up early so the rest of init code can access VPU registers */ ret = ivpu_hw_power_up(vdev); if (ret) - goto err_power_down; + goto err_shutdown; ret = ivpu_mmu_global_context_init(vdev); if (ret) - goto err_power_down; + goto err_shutdown; ret = ivpu_mmu_init(vdev); if (ret) @@ -601,10 +604,8 @@ err_mmu_rctx_fini: ivpu_mmu_reserved_context_fini(vdev); err_mmu_gctx_fini: ivpu_mmu_global_context_fini(vdev); -err_power_down: - ivpu_hw_power_down(vdev); - if (IVPU_WA(d3hot_after_power_off)) - pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot); +err_shutdown: + ivpu_shutdown(vdev); err_xa_destroy: xa_destroy(&vdev->db_xa); xa_destroy(&vdev->submitted_jobs_xa); @@ -628,9 +629,8 @@ static void ivpu_bo_unbind_all_user_contexts(struct ivpu_device *vdev) static void ivpu_dev_fini(struct ivpu_device *vdev) { ivpu_pm_disable(vdev); + ivpu_prepare_for_reset(vdev); ivpu_shutdown(vdev); - if (IVPU_WA(d3hot_after_power_off)) - pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot); ivpu_jobs_abort_all(vdev); ivpu_job_done_consumer_fini(vdev); diff --git a/drivers/accel/ivpu/ivpu_drv.h b/drivers/accel/ivpu/ivpu_drv.h index 7be0500d9bb8..bb4374d0eaec 100644 --- a/drivers/accel/ivpu/ivpu_drv.h +++ b/drivers/accel/ivpu/ivpu_drv.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * Copyright (C) 2020-2023 Intel Corporation + * Copyright (C) 2020-2024 Intel Corporation */ #ifndef __IVPU_DRV_H__ @@ -90,7 +90,6 @@ struct ivpu_wa_table { bool punit_disabled; bool clear_runtime_mem; - bool d3hot_after_power_off; bool interrupt_clear_with_0; bool disable_clock_relinquish; bool disable_d0i3_msg; diff --git a/drivers/accel/ivpu/ivpu_hw_37xx.c b/drivers/accel/ivpu/ivpu_hw_37xx.c index 9a0c9498baba..5e2865f9f7d6 100644 --- a/drivers/accel/ivpu/ivpu_hw_37xx.c +++ b/drivers/accel/ivpu/ivpu_hw_37xx.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (C) 2020-2023 Intel Corporation + * Copyright (C) 2020-2024 Intel Corporation */ #include "ivpu_drv.h" @@ -75,7 +75,6 @@ static void ivpu_hw_wa_init(struct ivpu_device *vdev) { vdev->wa.punit_disabled = false; vdev->wa.clear_runtime_mem = false; - vdev->wa.d3hot_after_power_off = true; REGB_WR32(VPU_37XX_BUTTRESS_INTERRUPT_STAT, BUTTRESS_ALL_IRQ_MASK); if (REGB_RD32(VPU_37XX_BUTTRESS_INTERRUPT_STAT) == BUTTRESS_ALL_IRQ_MASK) { @@ -86,7 +85,6 @@ static void ivpu_hw_wa_init(struct ivpu_device *vdev) IVPU_PRINT_WA(punit_disabled); IVPU_PRINT_WA(clear_runtime_mem); - IVPU_PRINT_WA(d3hot_after_power_off); IVPU_PRINT_WA(interrupt_clear_with_0); } diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c index 7cce1c928a7f..9cbd7af6576b 100644 --- a/drivers/accel/ivpu/ivpu_pm.c +++ b/drivers/accel/ivpu/ivpu_pm.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (C) 2020-2023 Intel Corporation + * Copyright (C) 2020-2024 Intel Corporation */ #include @@ -58,15 +58,12 @@ static int ivpu_suspend(struct ivpu_device *vdev) { int ret; - /* Save PCI state before powering down as it sometimes gets corrupted if NPU hangs */ - pci_save_state(to_pci_dev(vdev->drm.dev)); + ivpu_prepare_for_reset(vdev); ret = ivpu_shutdown(vdev); if (ret) ivpu_err(vdev, "Failed to shutdown VPU: %d\n", ret); - pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot); - return ret; } -- cgit v1.2.3