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src/fmm.c: fallback to old userptr reg if SVM fails

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Fallback to old userptr registration in case SVM method fails.

Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Change-Id: I70c3ec74a8b4f762713e6a0619453642f3fca8e5
Signed-off-by: Chris Freehill <cfreehil@amd.com>
This commit is contained in:
Alex Sierra
2024-07-04 10:08:26 -05:00
committed by Chris Freehill
parent 84567b6416
commit 626eb4bfaf
1 changed files with 7 additions and 4 deletions
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libhsakmt/src/fmm.c
+7 -4
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@@ -3123,7 +3123,7 @@ static HSAKMT_STATUS _fmm_map_to_gpu_userptr(void *addr, uint64_t size,
/* Map and return the GPUVM address adjusted by the offset
* from the start of the page
*/
if (is_svm_api_supported) {
if (!object && is_svm_api_supported) {
svm_addr = (void*)((HSAuint64)addr - page_offset);
if (!nodes_to_map) {
nodes_to_map = all_gpu_id_array;
@@ -3518,12 +3518,15 @@ HSAKMT_STATUS fmm_register_memory(void *address, uint64_t size_in_bytes,
return HSAKMT_STATUS_SUCCESS;
/* Register a new user ptr */
if (is_svm_api_supported)
return fmm_register_mem_svm_api(address,
if (is_svm_api_supported) {
ret = fmm_register_mem_svm_api(address,
size_in_bytes,
coarse_grain,
ext_coherent);
if (ret == HSAKMT_STATUS_SUCCESS)
return ret;
pr_debug("SVM failed, falling back to old registration\n");
}
ret = fmm_register_user_memory(address,
size_in_bytes,
&object,