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This commit is contained in:
Bernhard Stoeckner
2025-04-17 19:35:38 +02:00
parent e8113f665d
commit 4159579888
1142 changed files with 309085 additions and 272273 deletions
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33
kernel-open/nvidia-uvm/uvm_pmm_gpu.c
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@@ -175,6 +175,10 @@
#include "uvm_test.h"
#include "uvm_linux.h"
#if defined(CONFIG_PCI_P2PDMA) && defined(NV_STRUCT_PAGE_HAS_ZONE_DEVICE_DATA)
#include <linux/pci-p2pdma.h>
#endif
static int uvm_global_oversubscription = 1;
module_param(uvm_global_oversubscription, int, S_IRUGO);
MODULE_PARM_DESC(uvm_global_oversubscription, "Enable (1) or disable (0) global oversubscription support.");
@@ -3349,6 +3353,25 @@ void uvm_pmm_gpu_device_p2p_deinit(uvm_gpu_t *gpu)
gpu->device_p2p_initialised = false;
}
#else // CONFIG_PCI_P2PDMA
// Coherent platforms can do P2PDMA without CONFIG_PCI_P2PDMA
void uvm_pmm_gpu_device_p2p_init(uvm_gpu_t *gpu)
{
gpu->device_p2p_initialised = false;
uvm_mutex_init(&gpu->device_p2p_lock, UVM_LOCK_ORDER_GLOBAL);
if (uvm_parent_gpu_is_coherent(gpu->parent)) {
// A coherent system uses normal struct pages.
gpu->device_p2p_initialised = true;
return;
}
}
void uvm_pmm_gpu_device_p2p_deinit(uvm_gpu_t *gpu)
{
gpu->device_p2p_initialised = false;
}
#endif // CONFIG_PCI_P2PDMA
static void process_lazy_free(uvm_pmm_gpu_t *pmm)
@@ -3898,8 +3921,14 @@ NV_STATUS uvm_test_pmm_query_pma_stats(UVM_TEST_PMM_QUERY_PMA_STATS_PARAMS *para
if (!gpu)
return NV_ERR_INVALID_DEVICE;
params->pma_stats.numFreePages64k = READ_ONCE(gpu->pmm.pma_stats->numFreePages64k);
params->pma_stats.numFreePages2m = READ_ONCE(gpu->pmm.pma_stats->numFreePages2m);
if (gpu->mem_info.size != 0) {
params->pma_stats.numFreePages64k = READ_ONCE(gpu->pmm.pma_stats->numFreePages64k);
params->pma_stats.numFreePages2m = READ_ONCE(gpu->pmm.pma_stats->numFreePages2m);
}
else {
params->pma_stats.numFreePages64k = 0;
params->pma_stats.numFreePages2m = 0;
}
uvm_gpu_release(gpu);
return NV_OK;