diff options
| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2017-12-08 23:08:58 -0500 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2017-12-08 23:08:58 -0500 |
| commit | 520b8fb755ccfb07d8d743da5753cff1fcb74b9f (patch) | |
| tree | 20d8d603e2560c04160c2449d8b8e90274d50c49 /drivers/gpu/drm/amd/amdkfd/kfd_crat.h | |
| parent | bc0c75a36722be4537a9266940ddcd4f826234c4 (diff) | |
drm/amdkfd: Add topology support for CPUs
Currently, the KFD topology information is generated by parsing the CRAT
(ACPI) table. However, at present CRAT table is available only for AMD
APUs. To support CPUs on systems without a CRAT table, the KFD driver will
create a Virtual CRAT (VCRAT) table and then the existing code will parse
that table to generate topology.
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_crat.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_crat.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.h b/drivers/gpu/drm/amd/amdkfd/kfd_crat.h index c15adbd1461e..1711ab664ec6 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.h @@ -44,6 +44,10 @@ #define CRAT_OEMID_64BIT_MASK ((1ULL << (CRAT_OEMID_LENGTH * 8)) - 1) +/* Compute Unit flags */ +#define COMPUTE_UNIT_CPU (1 << 0) /* Create Virtual CRAT for CPU */ +#define COMPUTE_UNIT_GPU (1 << 1) /* Create Virtual CRAT for GPU */ + struct crat_header { uint32_t signature; uint32_t length; @@ -302,9 +306,14 @@ struct cdit_header { #pragma pack() +struct kfd_dev; + int kfd_create_crat_image_acpi(void **crat_image, size_t *size); void kfd_destroy_crat_image(void *crat_image); int kfd_parse_crat_table(void *crat_image, struct list_head *device_list, uint32_t proximity_domain); +int kfd_create_crat_image_virtual(void **crat_image, size_t *size, + int flags, struct kfd_dev *kdev, + uint32_t proximity_domain); #endif /* KFD_CRAT_H_INCLUDED */ |