It does the same thing we were doing already. I though it needed
work for gen3/4 speeds, but that seems to be covered already.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 41 ++--------------------
1 file changed, 2 insertions(+), 39 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 3785195b5cdf..5bb26d241c08 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3650,43 +3650,6 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
return r;
}
-static void amdgpu_device_get_min_pci_speed_width(struct amdgpu_device *adev,
- enum pci_bus_speed *speed,
- enum pcie_link_width *width)
-{
- struct pci_dev *pdev = adev->pdev;
- enum pci_bus_speed cur_speed;
- enum pcie_link_width cur_width;
- u32 ret = 1;
-
- *speed = PCI_SPEED_UNKNOWN;
- *width = PCIE_LNK_WIDTH_UNKNOWN;
-
- while (pdev) {
- cur_speed = pcie_get_speed_cap(pdev);
- cur_width = pcie_get_width_cap(pdev);
- ret = pcie_bandwidth_available(adev->pdev, NULL,
- NULL, &cur_width);
- if (!ret)
- cur_width = PCIE_LNK_WIDTH_RESRV;
-
- if (cur_speed != PCI_SPEED_UNKNOWN) {
- if (*speed == PCI_SPEED_UNKNOWN)
- *speed = cur_speed;
- else if (cur_speed < *speed)
- *speed = cur_speed;
- }
-
- if (cur_width != PCIE_LNK_WIDTH_UNKNOWN) {
- if (*width == PCIE_LNK_WIDTH_UNKNOWN)
- *width = cur_width;
- else if (cur_width < *width)
- *width = cur_width;
- }
- pdev = pci_upstream_bridge(pdev);
- }
-}
-
/**
* amdgpu_device_get_pcie_info - fence pcie info about the PCIE slot
*
@@ -3720,8 +3683,8 @@ static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
if (adev->pm.pcie_gen_mask && adev->pm.pcie_mlw_mask)
return;
- amdgpu_device_get_min_pci_speed_width(adev, &platform_speed_cap,
- &platform_link_width);
+ pcie_bandwidth_available(adev->pdev, NULL,
+ &platform_speed_cap, &platform_link_width);
if (adev->pm.pcie_gen_mask == 0) {
/* asic caps */
--
2.20.1
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