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drm/amdkfd: Add SVM API support capability bits

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SVMAPISupported property added to HSA_CAPABILITY, the value match
HSA_CAPABILITY defined in Thunk spec:

SVMAPISupported: it will not be supported on older kernels that don't
have HMM or on systems with GFXv8 or older GPUs without support for
48-bit virtual addresses.

CoherentHostAccess property added to HSA_MEMORYPROPERTY, the value match
HSA_MEMORYPROPERTY defined in Thunk spec:

CoherentHostAccess: whether or not device memory can be coherently
accessed by the host CPU.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Philip Yang
2020-12-09 21:51:50 -05:00
committed by Alex Deucher
parent 1a3b2b5dca
commit 4c166eb95d
2 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/amd/amdkfd/kfd_topology.c
View File

@@ -1419,6 +1419,12 @@ int kfd_topology_add_device(struct kfd_dev *gpu)
dev->node_props.capability |= (adev->ras_features != 0) ?
HSA_CAP_RASEVENTNOTIFY : 0;
/* SVM API and HMM page migration work together, device memory type
* is initialized to not 0 when page migration register device memory.
*/
if (adev->kfd.dev->pgmap.type != 0)
dev->node_props.capability |= HSA_CAP_SVMAPI_SUPPORTED;
kfd_debug_print_topology();
if (!res)

10
drivers/gpu/drm/amd/amdkfd/kfd_topology.h
View File

@@ -53,8 +53,9 @@
#define HSA_CAP_ASIC_REVISION_MASK 0x03c00000
#define HSA_CAP_ASIC_REVISION_SHIFT 22
#define HSA_CAP_SRAM_EDCSUPPORTED 0x04000000
#define HSA_CAP_SVMAPI_SUPPORTED 0x08000000
#define HSA_CAP_RESERVED 0xf80f8000
#define HSA_CAP_RESERVED 0xf00f8000
struct kfd_node_properties {
uint64_t hive_id;
@@ -98,9 +99,10 @@ struct kfd_node_properties {
#define HSA_MEM_HEAP_TYPE_GPU_LDS 4
#define HSA_MEM_HEAP_TYPE_GPU_SCRATCH 5
#define HSA_MEM_FLAGS_HOT_PLUGGABLE 0x00000001
#define HSA_MEM_FLAGS_NON_VOLATILE 0x00000002
#define HSA_MEM_FLAGS_RESERVED 0xfffffffc
#define HSA_MEM_FLAGS_HOT_PLUGGABLE 0x00000001
#define HSA_MEM_FLAGS_NON_VOLATILE 0x00000002
#define HSA_MEM_FLAGS_COHERENTHOSTACCESS 0x00000004
#define HSA_MEM_FLAGS_RESERVED 0xfffffff8
struct kfd_mem_properties {
struct list_head list;