diff options
| author |   Kenneth Feng <kenneth.feng@amd.com> | 2025-04-01 16:04:41 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2025-04-11 16:54:48 -0400 |
| commit | c770ef19673fb1defcbde2ee2b91c3c89bfcf164 (patch) | |
| tree | 196495628aaf0b7c6f2402ccd4ac1f8848737c79 /drivers/gpu/drm/amd/amdgpu | |
| parent | drm/amdgpu: remove the duplicated mes queue active state setting (diff) | |
| download | wireguard-linux-c770ef19673fb1defcbde2ee2b91c3c89bfcf164.tar.xz wireguard-linux-c770ef19673fb1defcbde2ee2b91c3c89bfcf164.zip | |
drm/amd/amdgpu: disable ASPM in some situations
disable ASPM with some ASICs on some specific platforms.
required from PCIe controller owner.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 6b38b0511330..84ddd02579bb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -85,6 +85,7 @@ #if IS_ENABLED(CONFIG_X86) #include <asm/intel-family.h> +#include <asm/cpu_device_id.h> #endif MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin"); @@ -1873,6 +1874,35 @@ static bool amdgpu_device_pcie_dynamic_switching_supported(struct amdgpu_device return true; } +static bool amdgpu_device_aspm_support_quirk(struct amdgpu_device *adev) +{ +#if IS_ENABLED(CONFIG_X86) + struct cpuinfo_x86 *c = &cpu_data(0); + + if (!(amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(12, 0, 0) || + amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(12, 0, 1))) + return false; + + if (c->x86 == 6 && + adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5) { + switch (c->x86_model) { + case VFM_MODEL(INTEL_ALDERLAKE): + case VFM_MODEL(INTEL_ALDERLAKE_L): + case VFM_MODEL(INTEL_RAPTORLAKE): + case VFM_MODEL(INTEL_RAPTORLAKE_P): + case VFM_MODEL(INTEL_RAPTORLAKE_S): + return true; + default: + return false; + } + } else { + return false; + } +#else + return false; +#endif +} + /** * amdgpu_device_should_use_aspm - check if the device should program ASPM * @@ -1897,6 +1927,8 @@ bool amdgpu_device_should_use_aspm(struct amdgpu_device *adev) } if (adev->flags & AMD_IS_APU) return false; + if (amdgpu_device_aspm_support_quirk(adev)) + return false; return pcie_aspm_enabled(adev->pdev); } |