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| author | Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> | 2022-11-08 23:04:30 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:49:05 -0400 |
| commit | 497db7ea33f7cec2a0019894e844789f003dbd22 (patch) | |
| tree | 45bd7dd070689c066ede4dd774cdf5f7d4fd280f /drivers | |
| parent | eaae4beee8a94b30f37341c9d14837c82e7e2647 (diff) | |
| download | linux-497db7ea33f7cec2a0019894e844789f003dbd22.tar.gz linux-497db7ea33f7cec2a0019894e844789f003dbd22.tar.bz2 linux-497db7ea33f7cec2a0019894e844789f003dbd22.zip | |
drm/amdgpu: Check APU supports true APP mode
On GPXIP 9.4.3 APU, in no carveout mode there is no real vram heap and
could be emulated by the driver over the interleaved NUMA system memory
and the APU could also be in the carveout mode during early development
stage or otherwise for debugging purpose so introduce a new member in
amdgpu_gmc to figure out whether the APU is in the native mode as per
the production configuration. AMD_IS_APU cannot be used for Accelerated
Processing Platform APUs as it might be used in a different context on
previous generations or on small APUs.
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Tested-by: Graham Sider <graham.sider@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index 572ef5be539f..e408abfc2daf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -251,6 +251,7 @@ struct amdgpu_gmc { uint64_t last_fault:AMDGPU_GMC_FAULT_RING_ORDER; bool tmz_enabled; + bool is_app_apu; const struct amdgpu_gmc_funcs *gmc_funcs; diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 2966aca9545d..0792c48fe347 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1442,6 +1442,20 @@ static int gmc_v9_0_early_init(void *handle) adev->smuio.funcs->is_host_gpu_xgmi_supported(adev); } + if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(9, 4, 3)) { + enum amdgpu_pkg_type pkg_type = + adev->smuio.funcs->get_pkg_type(adev); + /* On GFXIP 9.4.3. APU, there is no physical VRAM domain present + * and the APU, can be in used two possible modes: + * - carveout mode + * - native APU mode + * "is_app_apu" can be used to identify the APU in the native + * mode. + */ + adev->gmc.is_app_apu = (pkg_type == AMDGPU_PKG_TYPE_APU && + !pci_resource_len(adev->pdev, 0)); + } + gmc_v9_0_set_gmc_funcs(adev); gmc_v9_0_set_irq_funcs(adev); gmc_v9_0_set_umc_funcs(adev); |