int hl_mmu_va_to_pa(struct hl_ctx *ctx, u64 virt_addr, u64 *phys_addr);
int hl_mmu_get_tlb_info(struct hl_ctx *ctx, u64 virt_addr,
struct hl_mmu_hop_info *hops);
+bool hl_is_dram_va(struct hl_device *hdev, u64 virt_addr);
int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name,
void __iomem *dst, u32 src_offset, u32 size);
{
struct hl_device *hdev = ctx->hdev;
u64 next_vaddr, i;
+ bool is_host_addr;
u32 page_size;
+ is_host_addr = !hl_is_dram_va(hdev, vaddr);
page_size = phys_pg_pack->page_size;
next_vaddr = vaddr;
/*
* unmapping on Palladium can be really long, so avoid a CPU
* soft lockup bug by sleeping a little between unmapping pages
+ *
+ * In addition, when unmapping host memory we pass through
+ * the Linux kernel to unpin the pages and that takes a long
+ * time. Therefore, sleep every 32K pages to avoid soft lockup
*/
- if (hdev->pldm)
- usleep_range(500, 1000);
+ if (hdev->pldm || (is_host_addr && (i & 0x7FFF) == 0))
+ usleep_range(50, 200);
}
}
#include "habanalabs.h"
-static bool is_dram_va(struct hl_device *hdev, u64 virt_addr)
+bool hl_is_dram_va(struct hl_device *hdev, u64 virt_addr)
{
struct asic_fixed_properties *prop = &hdev->asic_prop;
if (!hdev->mmu_enable)
return 0;
- is_dram_addr = is_dram_va(hdev, virt_addr);
+ is_dram_addr = hl_is_dram_va(hdev, virt_addr);
if (is_dram_addr)
mmu_prop = &prop->dmmu;
if (!hdev->mmu_enable)
return 0;
- is_dram_addr = is_dram_va(hdev, virt_addr);
+ is_dram_addr = hl_is_dram_va(hdev, virt_addr);
if (is_dram_addr)
mmu_prop = &prop->dmmu;