From 9ca5b8a170d180889bec0424c27fdd2ee84d2d99 Mon Sep 17 00:00:00 2001 From: Likun Gao Date: Tue, 15 Dec 2020 11:32:20 -0500 Subject: drm/amdgpu: add judgement for suspend/resume sequence S0ix only makes sense on APUs since they are part of the platform, so only when the ASIC is APU should set amdgpu_acpi_is_s0ix_supported flag to deal with the related situation. Signed-off-by: Likun Gao Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 6e2953233231..b24de64f4490 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1311,11 +1311,11 @@ int amdgpu_acpi_pcie_notify_device_ready(struct amdgpu_device *adev); void amdgpu_acpi_get_backlight_caps(struct amdgpu_device *adev, struct amdgpu_dm_backlight_caps *caps); -bool amdgpu_acpi_is_s0ix_supported(void); +bool amdgpu_acpi_is_s0ix_supported(struct amdgpu_device *adev); #else static inline int amdgpu_acpi_init(struct amdgpu_device *adev) { return 0; } static inline void amdgpu_acpi_fini(struct amdgpu_device *adev) { } -static inline bool amdgpu_acpi_is_s0ix_supported(void) { return false; } +static inline bool amdgpu_acpi_is_s0ix_supported(struct amdgpu_device *adev) { return false; } #endif int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser, -- cgit v1.2.3 From fd496ca892f52df6eb0a0bfcdef1378aed966624 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 9 Dec 2020 12:45:23 -0500 Subject: drm/amdgpu: split BOCO and ATPX handling In preparation for systems that support d3cold on dGPUs independent of PX/HG. No functional change intended. Acked-by: Evan Quan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 33 ++++++++++++++++++++++-------- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 18 ++++++++++++---- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 4 ++-- 4 files changed, 42 insertions(+), 14 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index b24de64f4490..859aae780056 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1230,6 +1230,7 @@ void amdgpu_device_program_register_sequence(struct amdgpu_device *adev, const u32 *registers, const u32 array_size); +bool amdgpu_device_supports_atpx(struct drm_device *dev); bool amdgpu_device_supports_boco(struct drm_device *dev); bool amdgpu_device_supports_baco(struct drm_device *dev); bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 0ec7c28c4d5a..a96150ab0774 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -211,6 +211,23 @@ static ssize_t amdgpu_device_get_serial_number(struct device *dev, static DEVICE_ATTR(serial_number, S_IRUGO, amdgpu_device_get_serial_number, NULL); +/** + * amdgpu_device_supports_atpx - Is the device a dGPU with HG/PX power control + * + * @dev: drm_device pointer + * + * Returns true if the device is a dGPU with HG/PX power control, + * otherwise return false. + */ +bool amdgpu_device_supports_atpx(struct drm_device *dev) +{ + struct amdgpu_device *adev = drm_to_adev(dev); + + if (adev->flags & AMD_IS_PX) + return true; + return false; +} + /** * amdgpu_device_supports_boco - Is the device a dGPU with HG/PX power control * @@ -1398,7 +1415,7 @@ static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, struct drm_device *dev = pci_get_drvdata(pdev); int r; - if (amdgpu_device_supports_boco(dev) && state == VGA_SWITCHEROO_OFF) + if (amdgpu_device_supports_atpx(dev) && state == VGA_SWITCHEROO_OFF) return; if (state == VGA_SWITCHEROO_ON) { @@ -3177,7 +3194,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, struct drm_device *ddev = adev_to_drm(adev); struct pci_dev *pdev = adev->pdev; int r, i; - bool boco = false; + bool atpx = false; u32 max_MBps; adev->shutdown = false; @@ -3349,15 +3366,15 @@ int amdgpu_device_init(struct amdgpu_device *adev, if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) vga_client_register(adev->pdev, adev, NULL, amdgpu_device_vga_set_decode); - if (amdgpu_device_supports_boco(ddev)) - boco = true; + if (amdgpu_device_supports_atpx(ddev)) + atpx = true; if (amdgpu_has_atpx() && (amdgpu_is_atpx_hybrid() || amdgpu_has_atpx_dgpu_power_cntl()) && !pci_is_thunderbolt_attached(adev->pdev)) vga_switcheroo_register_client(adev->pdev, - &amdgpu_switcheroo_ops, boco); - if (boco) + &amdgpu_switcheroo_ops, atpx); + if (atpx) vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain); if (amdgpu_emu_mode == 1) { @@ -3540,7 +3557,7 @@ fence_driver_init: failed: amdgpu_vf_error_trans_all(adev); - if (boco) + if (atpx) vga_switcheroo_fini_domain_pm_ops(adev->dev); failed_unmap: @@ -3604,7 +3621,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev) amdgpu_has_atpx_dgpu_power_cntl()) && !pci_is_thunderbolt_attached(adev->pdev)) vga_switcheroo_unregister_client(adev->pdev); - if (amdgpu_device_supports_boco(adev_to_drm(adev))) + if (amdgpu_device_supports_atpx(adev_to_drm(adev))) vga_switcheroo_fini_domain_pm_ops(adev->dev); if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) vga_client_register(adev->pdev, NULL, NULL, NULL); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index ebdab31f9de9..90b8ce762aee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1340,7 +1340,7 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev) } adev->in_runpm = true; - if (amdgpu_device_supports_boco(drm_dev)) + if (amdgpu_device_supports_atpx(drm_dev)) drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; drm_kms_helper_poll_disable(drm_dev); @@ -1348,7 +1348,7 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev) if (ret) return ret; - if (amdgpu_device_supports_boco(drm_dev)) { + if (amdgpu_device_supports_atpx(drm_dev)) { /* Only need to handle PCI state in the driver for ATPX * PCI core handles it for _PR3. */ @@ -1361,6 +1361,11 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev) pci_set_power_state(pdev, PCI_D3cold); } drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; + } else if (amdgpu_device_supports_boco(drm_dev)) { + /* Only need to handle PCI state in the driver for ATPX + * PCI core handles it for _PR3. + */ + pci_ignore_hotplug(pdev); } else if (amdgpu_device_supports_baco(drm_dev)) { amdgpu_device_baco_enter(drm_dev); } @@ -1378,7 +1383,7 @@ static int amdgpu_pmops_runtime_resume(struct device *dev) if (!adev->runpm) return -EINVAL; - if (amdgpu_device_supports_boco(drm_dev)) { + if (amdgpu_device_supports_atpx(drm_dev)) { drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; /* Only need to handle PCI state in the driver for ATPX @@ -1394,12 +1399,17 @@ static int amdgpu_pmops_runtime_resume(struct device *dev) return ret; pci_set_master(pdev); } + } else if (amdgpu_device_supports_boco(drm_dev)) { + /* Only need to handle PCI state in the driver for ATPX + * PCI core handles it for _PR3. + */ + pci_set_master(pdev); } else if (amdgpu_device_supports_baco(drm_dev)) { amdgpu_device_baco_exit(drm_dev); } ret = amdgpu_device_resume(drm_dev, false); drm_kms_helper_poll_enable(drm_dev); - if (amdgpu_device_supports_boco(drm_dev)) + if (amdgpu_device_supports_atpx(drm_dev)) drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; adev->in_runpm = false; return 0; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index fc12fc72366f..38fb903338a4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -156,7 +156,7 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) goto out; } - if (amdgpu_device_supports_boco(dev) && + if (amdgpu_device_supports_atpx(dev) && (amdgpu_runtime_pm != 0)) { /* enable runpm by default for boco */ adev->runpm = true; } else if (amdgpu_device_supports_baco(dev) && @@ -192,7 +192,7 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) if (adev->runpm) { /* only need to skip on ATPX */ - if (amdgpu_device_supports_boco(dev) && + if (amdgpu_device_supports_atpx(dev) && !amdgpu_is_atpx_hybrid()) dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE); pm_runtime_use_autosuspend(dev->dev); -- cgit v1.2.3 From b10c1c5b3a4e3f1f166ab48c3619d8348a4e9c5d Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 9 Dec 2020 13:07:30 -0500 Subject: drm/amdgpu: add check for ACPI power resources Check if the device has ACPI power resources so we can enable runtime pm if so. Acked-by: Evan Quan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 4 ++++ 2 files changed, 5 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 859aae780056..e119185210de 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1024,6 +1024,7 @@ struct amdgpu_device { /* enable runtime pm on the device */ bool runpm; bool in_runpm; + bool has_pr3; bool pm_sysfs_en; bool ucode_sysfs_en; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 38fb903338a4..ec8fff7839ef 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -133,6 +133,7 @@ void amdgpu_register_gpu_instance(struct amdgpu_device *adev) int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) { struct drm_device *dev; + struct pci_dev *parent; int r, acpi_status; dev = adev_to_drm(adev); @@ -144,6 +145,9 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags) !pci_is_thunderbolt_attached(dev->pdev)) flags |= AMD_IS_PX; + parent = pci_upstream_bridge(adev->pdev); + adev->has_pr3 = parent ? pci_pr3_present(parent) : false; + /* amdgpu_device_init should report only fatal error * like memory allocation failure or iomapping failure, * or memory manager initialization failure, it must -- cgit v1.2.3