From: Lijo Lazar Date: Thu, 6 Feb 2025 12:10:42 +0000 (+0530) Subject: drm/amdgpu: Calculate IP specific xgmi bandwidth X-Git-Tag: v6.15-rc1~120^2~2^2~16 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=357506799bacb21ba1ed7d64e02ac9c4a1f45b31;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: Calculate IP specific xgmi bandwidth Use IP version specific xgmi speed/width for bandwidth calculation. Signed-off-by: Lijo Lazar Reviewed-by: Jonathan Kim Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 9e9fec5b52ded..17ce1677378e2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2757,6 +2757,9 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev) if (!total) return -ENODEV; + if (adev->gmc.xgmi.supported) + amdgpu_xgmi_early_init(adev); + ip_block = amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_GFX); if (ip_block->status.valid != false) amdgpu_amdkfd_device_probe(adev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c index 7fdf30f1161c1..6029a799074d5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c @@ -844,7 +844,9 @@ int amdgpu_xgmi_get_bandwidth(struct amdgpu_device *adev, struct amdgpu_device * { bool peer_mode = bw_mode == AMDGPU_XGMI_BW_MODE_PER_PEER; int unit_scale = bw_unit == AMDGPU_XGMI_BW_UNIT_MBYTES ? 1000 : 1; - int speed = 25, num_lanes = 16, num_links = !peer_mode ? 1 : -1; + int num_lanes = adev->gmc.xgmi.max_width; + int speed = adev->gmc.xgmi.max_speed; + int num_links = !peer_mode ? 1 : -1; if (!(min_bw && max_bw)) return -EINVAL;