From: Alex Deucher <alexdeucher@gmail.com>
To: amd-gfx@lists.freedesktop.org
Cc: Alex Deucher <alexander.deucher@amd.com>
Subject: [PATCH 2/7] drm/amdgpu: add check for ACPI power resources
Date: Thu, 10 Dec 2020 16:45:13 -0500 [thread overview]
Message-ID: <20201210214518.704305-2-alexander.deucher@amd.com> (raw)
In-Reply-To: <20201210214518.704305-1-alexander.deucher@amd.com>
Check if the device has ACPI power resources so we can
enable runtime pm if so.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 38c029af60c7..c228e7470d51 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
--
2.25.4
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next prev parent reply other threads:[~2020-12-10 21:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-10 21:45 [PATCH 1/7] drm/amdgpu: split BOCO and ATPX handling Alex Deucher
2020-12-10 21:45 ` Alex Deucher [this message]
2020-12-10 21:45 ` [PATCH 3/7] drm/amdgpu: update amdgpu_device_supports_boco() Alex Deucher
2020-12-10 21:45 ` [PATCH 4/7] drm/amdgpu: support runtime pm for GPUs that support BOCO Alex Deucher
2020-12-10 21:45 ` [PATCH 5/7] drm/amdgpu: no need to call pci_ignore_hotplug for _PR3 Alex Deucher
2020-12-10 21:45 ` [PATCH 6/7] drm/amdgpu: simplify logic in atpx resume handling Alex Deucher
2020-12-10 21:45 ` [PATCH 7/7] drm/amdgpu: print what method we are using for runtime pm Alex Deucher
2020-12-11 2:20 ` Quan, Evan
2020-12-11 2:21 ` Quan, Evan
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