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Use D3DKMTEnumAdapters3 for adapter enumeration

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D3DKMTEnumAdapters3 is required to enumerate MCDM compute-only adapters

Signed-off-by: Jakub Bujak <jbujak@nvidia.com>
This commit is contained in:
Jakub Bujak 2024-03-08 15:18:19 +01:00
parent df9732dae4
commit 44ae31d101
1 changed files with 71 additions and 7 deletions
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78
internal/dxcore/dxcore.c
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@ -41,14 +41,17 @@ static const char * const dxcore_nvidia_driver_store_components[] = {
*/ */
struct dxcore_enumAdapters2; struct dxcore_enumAdapters2;
struct dxcore_enumAdapters3;
struct dxcore_queryAdapterInfo; struct dxcore_queryAdapterInfo;
typedef int(*pfnDxcoreEnumAdapters2)(struct dxcore_enumAdapters2* pParams); typedef int(*pfnDxcoreEnumAdapters2)(struct dxcore_enumAdapters2* pParams);
typedef int(*pfnDxcoreEnumAdapters3)(struct dxcore_enumAdapters3* pParams);
typedef int(*pfnDxcoreQueryAdapterInfo)(struct dxcore_queryAdapterInfo* pParams); typedef int(*pfnDxcoreQueryAdapterInfo)(struct dxcore_queryAdapterInfo* pParams);
struct dxcore_lib { struct dxcore_lib {
void* hDxcoreLib; void* hDxcoreLib;
pfnDxcoreEnumAdapters2 pDxcoreEnumAdapters2; pfnDxcoreEnumAdapters2 pDxcoreEnumAdapters2;
pfnDxcoreEnumAdapters3 pDxcoreEnumAdapters3;
pfnDxcoreQueryAdapterInfo pDxcoreQueryAdapterInfo; pfnDxcoreQueryAdapterInfo pDxcoreQueryAdapterInfo;
}; };
@ -66,6 +69,15 @@ struct dxcore_enumAdapters2
struct dxcore_adapterInfo *pAdapters; struct dxcore_adapterInfo *pAdapters;
}; };
#define ENUMADAPTER3_FILTER_COMPUTE_ONLY (0x0000000000000001)
struct dxcore_enumAdapters3
{
unsigned long long Filter;
unsigned int NumAdapters;
struct dxcore_adapterInfo *pAdapters;
};
enum dxcore_kmtqueryAdapterInfoType enum dxcore_kmtqueryAdapterInfoType
{ {
DXCORE_QUERYDRIVERVERSION = 13, DXCORE_QUERYDRIVERVERSION = 13,
@ -239,7 +251,37 @@ static void dxcore_add_adapter(struct dxcore_context* pCtx, struct dxcore_lib* p
log_infof("Adding new adapter via dxcore hAdapter:%x luid:%llx wddm version:%d", pAdapterInfo->hAdapter, *((unsigned long long*)&pAdapterInfo->AdapterLuid), wddmVersion); log_infof("Adding new adapter via dxcore hAdapter:%x luid:%llx wddm version:%d", pAdapterInfo->hAdapter, *((unsigned long long*)&pAdapterInfo->AdapterLuid), wddmVersion);
} }
static void dxcore_enum_adapters(struct dxcore_context* pCtx, struct dxcore_lib* pLib) static int dxcore_enum_adapters3(struct dxcore_context* pCtx, struct dxcore_lib* pLib)
{
struct dxcore_enumAdapters3 params = {0};
unsigned int adapterIndex = 0;
// Include compute-only in addition to display+compute adapters
params.Filter = ENUMADAPTER3_FILTER_COMPUTE_ONLY;
params.NumAdapters = 0;
params.pAdapters = NULL;
if (pLib->pDxcoreEnumAdapters3(&params)) {
log_err("Failed to enumerate adapters via enumAdapers3");
return 1;
}
params.pAdapters = malloc(sizeof(struct dxcore_adapterInfo) * params.NumAdapters);
if (pLib->pDxcoreEnumAdapters3(&params)) {
free(params.pAdapters);
log_err("Failed to enumerate adapters via enumAdapers3");
return 1;
}
for (adapterIndex = 0; adapterIndex < params.NumAdapters; adapterIndex++) {
dxcore_add_adapter(pCtx, pLib, &params.pAdapters[adapterIndex]);
}
free(params.pAdapters);
return 0;
}
static int dxcore_enum_adapters2(struct dxcore_context* pCtx, struct dxcore_lib* pLib)
{ {
struct dxcore_enumAdapters2 params = {0}; struct dxcore_enumAdapters2 params = {0};
unsigned int adapterIndex = 0; unsigned int adapterIndex = 0;
@ -248,15 +290,15 @@ static void dxcore_enum_adapters(struct dxcore_context* pCtx, struct dxcore_lib*
params.pAdapters = NULL; params.pAdapters = NULL;
if (pLib->pDxcoreEnumAdapters2(&params)) { if (pLib->pDxcoreEnumAdapters2(&params)) {
log_err("Failed to enumerate adapters via dxcore"); log_err("Failed to enumerate adapters via enumAdapters2");
return; return 1;
} }
params.pAdapters = malloc(sizeof(struct dxcore_adapterInfo) * params.NumAdapters); params.pAdapters = malloc(sizeof(struct dxcore_adapterInfo) * params.NumAdapters);
if (pLib->pDxcoreEnumAdapters2(&params)) { if (pLib->pDxcoreEnumAdapters2(&params)) {
free(params.pAdapters); free(params.pAdapters);
log_err("Failed to enumerate adapters via dxcore"); log_err("Failed to enumerate adapters via enumAdapters2");
return; return 1;
} }
for (adapterIndex = 0; adapterIndex < params.NumAdapters; adapterIndex++) { for (adapterIndex = 0; adapterIndex < params.NumAdapters; adapterIndex++) {
@ -264,6 +306,27 @@ static void dxcore_enum_adapters(struct dxcore_context* pCtx, struct dxcore_lib*
} }
free(params.pAdapters); free(params.pAdapters);
return 0;
}
static void dxcore_enum_adapters(struct dxcore_context* pCtx, struct dxcore_lib* pLib)
{
int status;
if (pLib->pDxcoreEnumAdapters3) {
status = dxcore_enum_adapters3(pCtx, pLib);
if (status == 0) {
return;
}
}
// Fall back to EnumAdapters2 if the OS doesn't support EnumAdapters3
if (pLib->pDxcoreEnumAdapters2) {
status = dxcore_enum_adapters2(pCtx, pLib);
if (status == 0) {
return;
}
}
log_err("Failed to enumerate adapters via dxcore");
} }
int dxcore_init_context(struct dxcore_context* pCtx) int dxcore_init_context(struct dxcore_context* pCtx)
@ -280,8 +343,9 @@ int dxcore_init_context(struct dxcore_context* pCtx)
} }
lib.pDxcoreEnumAdapters2 = (pfnDxcoreEnumAdapters2)dlsym(lib.hDxcoreLib, "D3DKMTEnumAdapters2"); lib.pDxcoreEnumAdapters2 = (pfnDxcoreEnumAdapters2)dlsym(lib.hDxcoreLib, "D3DKMTEnumAdapters2");
if (!lib.pDxcoreEnumAdapters2) { lib.pDxcoreEnumAdapters3 = (pfnDxcoreEnumAdapters3)dlsym(lib.hDxcoreLib, "D3DKMTEnumAdapters3");
log_err("dxcore library is present but the symbol D3DKMTEnumAdapters2 is missing"); if (!lib.pDxcoreEnumAdapters2 && !lib.pDxcoreEnumAdapters3) {
log_err("dxcore library is present but the symbols D3DKMTEnumAdapters2 and D3DKMTEnumAdapters3 are missing");
goto error; goto error;
} }