diff options
Diffstat (limited to 'drivers/misc/habanalabs/habanalabs.h')
| -rw-r--r-- | drivers/misc/habanalabs/habanalabs.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h index ee29971822c6..59b25c6fae00 100644 --- a/drivers/misc/habanalabs/habanalabs.h +++ b/drivers/misc/habanalabs/habanalabs.h @@ -143,7 +143,10 @@ enum hl_device_hw_state { * mapping DRAM memory. * @va_space_dram_end_address: end address of virtual memory range for * mapping DRAM memory. + * @dram_size_for_default_page_mapping: DRAM size needed to map to avoid page + * fault. * @mmu_pgt_addr: base physical address in DRAM of MMU page tables. + * @mmu_dram_default_page_addr: DRAM default page physical address. * @mmu_pgt_size: MMU page tables total size. * @mmu_pte_size: PTE size in MMU page tables. * @mmu_hop_table_size: MMU hop table size. @@ -182,7 +185,9 @@ struct asic_fixed_properties { u64 va_space_host_end_address; u64 va_space_dram_start_address; u64 va_space_dram_end_address; + u64 dram_size_for_default_page_mapping; u64 mmu_pgt_addr; + u64 mmu_dram_default_page_addr; u32 mmu_pgt_size; u32 mmu_pte_size; u32 mmu_hop_table_size; @@ -592,6 +597,8 @@ struct hl_va_range { * @cs_sequence: sequence number for CS. Value is assigned to a CS and passed * to user so user could inquire about CS. It is used as * index to cs_pending array. + * @dram_default_hops: array that holds all hops addresses needed for default + * DRAM mapping. * @cs_lock: spinlock to protect cs_sequence. * @dram_phys_mem: amount of used physical DRAM memory by this context. * @thread_restore_token: token to prevent multiple threads of the same context @@ -615,6 +622,7 @@ struct hl_ctx { struct mutex mmu_lock; struct list_head debugfs_list; u64 cs_sequence; + u64 *dram_default_hops; spinlock_t cs_lock; atomic64_t dram_phys_mem; atomic_t thread_restore_token; @@ -1068,6 +1076,7 @@ struct hl_device_reset_work { * @reset_on_lockup: true if a reset should be done in case of stuck CS, false * otherwise. * @dram_supports_virtual_memory: is MMU enabled towards DRAM. + * @dram_default_page_mapping: is DRAM default page mapping enabled. * @init_done: is the initialization of the device done. * @mmu_enable: is MMU enabled. */ @@ -1135,6 +1144,7 @@ struct hl_device { u8 heartbeat; u8 reset_on_lockup; u8 dram_supports_virtual_memory; + u8 dram_default_page_mapping; u8 init_done; /* Parameters for bring-up */ @@ -1329,7 +1339,7 @@ bool hl_userptr_is_pinned(struct hl_device *hdev, u64 addr, u32 size, int hl_mmu_init(struct hl_device *hdev); void hl_mmu_fini(struct hl_device *hdev); -void hl_mmu_ctx_init(struct hl_ctx *ctx); +int hl_mmu_ctx_init(struct hl_ctx *ctx); void hl_mmu_ctx_fini(struct hl_ctx *ctx); int hl_mmu_map(struct hl_ctx *ctx, u64 virt_addr, u64 phys_addr, u32 page_size); int hl_mmu_unmap(struct hl_ctx *ctx, u64 virt_addr, u32 page_size); |