1 files changed, 45 insertions, 309 deletions

diff --git a/drivers/accel/habanalabs/common/mmu/mmu_v1.c b/drivers/accel/habanalabs/common/mmu/mmu_v1.c
index d925dc4dd097..845d16aaa637 100644
--- a/drivers/accel/habanalabs/common/mmu/mmu_v1.c
+++ b/drivers/accel/habanalabs/common/mmu/mmu_v1.c
@@ -12,166 +12,6 @@
 
 #define MMU_V1_MAX_HOPS	(MMU_HOP4 + 1)
 
-static inline u64 get_phys_addr(struct hl_ctx *ctx, u64 shadow_addr);
-
-static struct pgt_info *get_pgt_info(struct hl_ctx *ctx, u64 hop_addr)
-{
-	struct pgt_info *pgt_info = NULL;
-
-	hash_for_each_possible(ctx->mmu_shadow_hash, pgt_info, node,
-				(unsigned long) hop_addr)
-		if (hop_addr == pgt_info->shadow_addr)
-			break;
-
-	return pgt_info;
-}
-
-static void _free_hop(struct hl_ctx *ctx, struct pgt_info *pgt_info)
-{
-	struct hl_device *hdev = ctx->hdev;
-
-	gen_pool_free(hdev->mmu_priv.dr.mmu_pgt_pool, pgt_info->phys_addr,
-			hdev->asic_prop.mmu_hop_table_size);
-	hash_del(&pgt_info->node);
-	kfree((u64 *) (uintptr_t) pgt_info->shadow_addr);
-	kfree(pgt_info);
-}
-
-static void free_hop(struct hl_ctx *ctx, u64 hop_addr)
-{
-	struct pgt_info *pgt_info = get_pgt_info(ctx, hop_addr);
-
-	_free_hop(ctx, pgt_info);
-}
-
-static u64 alloc_hop(struct hl_ctx *ctx)
-{
-	struct hl_device *hdev = ctx->hdev;
-	struct asic_fixed_properties *prop = &hdev->asic_prop;
-	struct pgt_info *pgt_info;
-	u64 phys_addr, shadow_addr;
-
-	pgt_info = kmalloc(sizeof(*pgt_info), GFP_KERNEL);
-	if (!pgt_info)
-		return ULLONG_MAX;
-
-	phys_addr = (u64) gen_pool_alloc(hdev->mmu_priv.dr.mmu_pgt_pool,
-					prop->mmu_hop_table_size);
-	if (!phys_addr) {
-		dev_err(hdev->dev, "failed to allocate page\n");
-		goto pool_add_err;
-	}
-
-	shadow_addr = (u64) (uintptr_t) kzalloc(prop->mmu_hop_table_size,
-						GFP_KERNEL);
-	if (!shadow_addr)
-		goto shadow_err;
-
-	pgt_info->phys_addr = phys_addr;
-	pgt_info->shadow_addr = shadow_addr;
-	pgt_info->ctx = ctx;
-	pgt_info->num_of_ptes = 0;
-	hash_add(ctx->mmu_shadow_hash, &pgt_info->node, shadow_addr);
-
-	return shadow_addr;
-
-shadow_err:
-	gen_pool_free(hdev->mmu_priv.dr.mmu_pgt_pool, phys_addr,
-			prop->mmu_hop_table_size);
-pool_add_err:
-	kfree(pgt_info);
-
-	return ULLONG_MAX;
-}
-
-static inline u64 get_phys_hop0_addr(struct hl_ctx *ctx)
-{
-	return ctx->hdev->asic_prop.mmu_pgt_addr +
-			(ctx->asid * ctx->hdev->asic_prop.mmu_hop_table_size);
-}
-
-static inline u64 get_hop0_addr(struct hl_ctx *ctx)
-{
-	return (u64) (uintptr_t) ctx->hdev->mmu_priv.dr.mmu_shadow_hop0 +
-			(ctx->asid * ctx->hdev->asic_prop.mmu_hop_table_size);
-}
-
-static void flush(struct hl_ctx *ctx)
-{
-	/* flush all writes from all cores to reach PCI */
-	mb();
-	ctx->hdev->asic_funcs->read_pte(ctx->hdev, get_phys_hop0_addr(ctx));
-}
-
-/* transform the value to physical address when writing to H/W */
-static inline void write_pte(struct hl_ctx *ctx, u64 shadow_pte_addr, u64 val)
-{
-	/*
-	 * The value to write is actually the address of the next shadow hop +
-	 * flags at the 12 LSBs.
-	 * Hence in order to get the value to write to the physical PTE, we
-	 * clear the 12 LSBs and translate the shadow hop to its associated
-	 * physical hop, and add back the original 12 LSBs.
-	 */
-	u64 phys_val = get_phys_addr(ctx, val & HOP_PHYS_ADDR_MASK) |
-				(val & FLAGS_MASK);
-
-	ctx->hdev->asic_funcs->write_pte(ctx->hdev,
-					get_phys_addr(ctx, shadow_pte_addr),
-					phys_val);
-
-	*(u64 *) (uintptr_t) shadow_pte_addr = val;
-}
-
-/* do not transform the value to physical address when writing to H/W */
-static inline void write_final_pte(struct hl_ctx *ctx, u64 shadow_pte_addr,
-					u64 val)
-{
-	ctx->hdev->asic_funcs->write_pte(ctx->hdev,
-					get_phys_addr(ctx, shadow_pte_addr),
-					val);
-	*(u64 *) (uintptr_t) shadow_pte_addr = val;
-}
-
-/* clear the last and present bits */
-static inline void clear_pte(struct hl_ctx *ctx, u64 pte_addr)
-{
-	/* no need to transform the value to physical address */
-	write_final_pte(ctx, pte_addr, 0);
-}
-
-static inline void get_pte(struct hl_ctx *ctx, u64 hop_addr)
-{
-	get_pgt_info(ctx, hop_addr)->num_of_ptes++;
-}
-
-/*
- * put_pte - decrement the num of ptes and free the hop if possible
- *
- * @ctx: pointer to the context structure
- * @hop_addr: addr of the hop
- *
- * This function returns the number of ptes left on this hop. If the number is
- * 0, it means the pte was freed.
- */
-static inline int put_pte(struct hl_ctx *ctx, u64 hop_addr)
-{
-	struct pgt_info *pgt_info = get_pgt_info(ctx, hop_addr);
-	int num_of_ptes_left;
-
-	pgt_info->num_of_ptes--;
-
-	/*
-	 * Need to save the number of ptes left because free_hop might free
-	 * the pgt_info
-	 */
-	num_of_ptes_left = pgt_info->num_of_ptes;
-	if (!num_of_ptes_left)
-		_free_hop(ctx, pgt_info);
-
-	return num_of_ptes_left;
-}
-
 static inline u64 get_hop_pte_addr(struct hl_ctx *ctx, struct hl_mmu_properties *mmu_prop,
 					u64 *hop_addr_arr, u64 virt_addr, enum mmu_hop_num hop_idx)
 {
@@ -183,35 +23,6 @@ static inline u64 get_hop_pte_addr(struct hl_ctx *ctx, struct hl_mmu_properties
 			ctx->hdev->asic_prop.mmu_pte_size * ((virt_addr & mask) >> shift);
 }
 
-static inline u64 get_alloc_next_hop_addr(struct hl_ctx *ctx, u64 curr_pte,
-						bool *is_new_hop)
-{
-	u64 hop_addr = hl_mmu_get_next_hop_addr(ctx, curr_pte);
-
-	if (hop_addr == ULLONG_MAX) {
-		hop_addr = alloc_hop(ctx);
-		*is_new_hop = (hop_addr != ULLONG_MAX);
-	}
-
-	return hop_addr;
-}
-
-/* translates shadow address inside hop to a physical address */
-static inline u64 get_phys_addr(struct hl_ctx *ctx, u64 shadow_addr)
-{
-	u64 page_mask = (ctx->hdev->asic_prop.mmu_hop_table_size - 1);
-	u64 shadow_hop_addr = shadow_addr & ~page_mask;
-	u64 pte_offset = shadow_addr & page_mask;
-	u64 phys_hop_addr;
-
-	if (shadow_hop_addr != get_hop0_addr(ctx))
-		phys_hop_addr = get_pgt_info(ctx, shadow_hop_addr)->phys_addr;
-	else
-		phys_hop_addr = get_phys_hop0_addr(ctx);
-
-	return phys_hop_addr + pte_offset;
-}
-
 static int dram_default_mapping_init(struct hl_ctx *ctx)
 {
 	struct hl_device *hdev = ctx->hdev;
@@ -232,13 +43,13 @@ static int dram_default_mapping_init(struct hl_ctx *ctx)
 	/* add hop1 and hop2 */
 	total_hops = num_of_hop3 + 2;
 
-	ctx->dram_default_hops = kzalloc(HL_PTE_SIZE * total_hops,  GFP_KERNEL);
+	ctx->dram_default_hops = kcalloc(total_hops, HL_PTE_SIZE,  GFP_KERNEL);
 	if (!ctx->dram_default_hops)
 		return -ENOMEM;
 
-	hop0_addr = get_hop0_addr(ctx);
+	hop0_addr = hl_mmu_dr_get_hop0_addr(ctx);
 
-	hop1_addr = alloc_hop(ctx);
+	hop1_addr = hl_mmu_dr_alloc_hop(ctx);
 	if (hop1_addr == ULLONG_MAX) {
 		dev_err(hdev->dev, "failed to alloc hop 1\n");
 		rc = -ENOMEM;
@@ -247,7 +58,7 @@ static int dram_default_mapping_init(struct hl_ctx *ctx)
 
 	ctx->dram_default_hops[total_hops - 1] = hop1_addr;
 
-	hop2_addr = alloc_hop(ctx);
+	hop2_addr = hl_mmu_dr_alloc_hop(ctx);
 	if (hop2_addr == ULLONG_MAX) {
 		dev_err(hdev->dev, "failed to alloc hop 2\n");
 		rc = -ENOMEM;
@@ -257,7 +68,7 @@ static int dram_default_mapping_init(struct hl_ctx *ctx)
 	ctx->dram_default_hops[total_hops - 2] = hop2_addr;
 
 	for (i = 0 ; i < num_of_hop3 ; i++) {
-		ctx->dram_default_hops[i] = alloc_hop(ctx);
+		ctx->dram_default_hops[i] = hl_mmu_dr_alloc_hop(ctx);
 		if (ctx->dram_default_hops[i] == ULLONG_MAX) {
 			dev_err(hdev->dev, "failed to alloc hop 3, i: %d\n", i);
 			rc = -ENOMEM;
@@ -268,18 +79,18 @@ static int dram_default_mapping_init(struct hl_ctx *ctx)
 
 	/* need only pte 0 in hops 0 and 1 */
 	pte_val = (hop1_addr & HOP_PHYS_ADDR_MASK) | PAGE_PRESENT_MASK;
-	write_pte(ctx, hop0_addr, pte_val);
+	hl_mmu_dr_write_pte(ctx, hop0_addr, pte_val);
 
 	pte_val = (hop2_addr & HOP_PHYS_ADDR_MASK) | PAGE_PRESENT_MASK;
-	write_pte(ctx, hop1_addr, pte_val);
-	get_pte(ctx, hop1_addr);
+	hl_mmu_dr_write_pte(ctx, hop1_addr, pte_val);
+	hl_mmu_dr_get_pte(ctx, hop1_addr);
 
 	hop2_pte_addr = hop2_addr;
 	for (i = 0 ; i < num_of_hop3 ; i++) {
 		pte_val = (ctx->dram_default_hops[i] & HOP_PHYS_ADDR_MASK) |
 				PAGE_PRESENT_MASK;
-		write_pte(ctx, hop2_pte_addr, pte_val);
-		get_pte(ctx, hop2_addr);
+		hl_mmu_dr_write_pte(ctx, hop2_pte_addr, pte_val);
+		hl_mmu_dr_get_pte(ctx, hop2_addr);
 		hop2_pte_addr += HL_PTE_SIZE;
 	}
 
@@ -289,23 +100,23 @@ static int dram_default_mapping_init(struct hl_ctx *ctx)
 	for (i = 0 ; i < num_of_hop3 ; i++) {
 		hop3_pte_addr = ctx->dram_default_hops[i];
 		for (j = 0 ; j < HOP_PTE_ENTRIES_512 ; j++) {
-			write_final_pte(ctx, hop3_pte_addr, pte_val);
-			get_pte(ctx, ctx->dram_default_hops[i]);
+			hl_mmu_dr_write_final_pte(ctx, hop3_pte_addr, pte_val);
+			hl_mmu_dr_get_pte(ctx, ctx->dram_default_hops[i]);
 			hop3_pte_addr += HL_PTE_SIZE;
 		}
 	}
 
-	flush(ctx);
+	hl_mmu_dr_flush(ctx);
 
 	return 0;
 
 hop3_err:
 	for (i = 0 ; i < hop3_allocated ; i++)
-		free_hop(ctx, ctx->dram_default_hops[i]);
+		hl_mmu_dr_free_hop(ctx, ctx->dram_default_hops[i]);
 
-	free_hop(ctx, hop2_addr);
+	hl_mmu_dr_free_hop(ctx, hop2_addr);
 hop2_err:
-	free_hop(ctx, hop1_addr);
+	hl_mmu_dr_free_hop(ctx, hop1_addr);
 hop1_err:
 	kfree(ctx->dram_default_hops);
 
@@ -329,7 +140,7 @@ static void dram_default_mapping_fini(struct hl_ctx *ctx)
 	do_div(num_of_hop3, prop->dram_page_size);
 	do_div(num_of_hop3, HOP_PTE_ENTRIES_512);
 
-	hop0_addr = get_hop0_addr(ctx);
+	hop0_addr = hl_mmu_dr_get_hop0_addr(ctx);
 	/* add hop1 and hop2 */
 	total_hops = num_of_hop3 + 2;
 	hop1_addr = ctx->dram_default_hops[total_hops - 1];
@@ -338,101 +149,26 @@ static void dram_default_mapping_fini(struct hl_ctx *ctx)
 	for (i = 0 ; i < num_of_hop3 ; i++) {
 		hop3_pte_addr = ctx->dram_default_hops[i];
 		for (j = 0 ; j < HOP_PTE_ENTRIES_512 ; j++) {
-			clear_pte(ctx, hop3_pte_addr);
-			put_pte(ctx, ctx->dram_default_hops[i]);
+			hl_mmu_dr_clear_pte(ctx, hop3_pte_addr);
+			hl_mmu_dr_put_pte(ctx, ctx->dram_default_hops[i]);
 			hop3_pte_addr += HL_PTE_SIZE;
 		}
 	}
 
 	hop2_pte_addr = hop2_addr;
 	for (i = 0 ; i < num_of_hop3 ; i++) {
-		clear_pte(ctx, hop2_pte_addr);
-		put_pte(ctx, hop2_addr);
+		hl_mmu_dr_clear_pte(ctx, hop2_pte_addr);
+		hl_mmu_dr_put_pte(ctx, hop2_addr);
 		hop2_pte_addr += HL_PTE_SIZE;
 	}
 
-	clear_pte(ctx, hop1_addr);
-	put_pte(ctx, hop1_addr);
-	clear_pte(ctx, hop0_addr);
+	hl_mmu_dr_clear_pte(ctx, hop1_addr);
+	hl_mmu_dr_put_pte(ctx, hop1_addr);
+	hl_mmu_dr_clear_pte(ctx, hop0_addr);
 
 	kfree(ctx->dram_default_hops);
 
-	flush(ctx);
-}
-
-/**
- * hl_mmu_v1_init() - initialize the MMU module.
- * @hdev: habanalabs device structure.
- *
- * This function does the following:
- * - Create a pool of pages for pgt_infos.
- * - Create a shadow table for pgt
- *
- * Return: 0 for success, non-zero for failure.
- */
-static int hl_mmu_v1_init(struct hl_device *hdev)
-{
-	struct asic_fixed_properties *prop = &hdev->asic_prop;
-	int rc;
-
-	hdev->mmu_priv.dr.mmu_pgt_pool =
-			gen_pool_create(__ffs(prop->mmu_hop_table_size), -1);
-
-	if (!hdev->mmu_priv.dr.mmu_pgt_pool) {
-		dev_err(hdev->dev, "Failed to create page gen pool\n");
-		return -ENOMEM;
-	}
-
-	rc = gen_pool_add(hdev->mmu_priv.dr.mmu_pgt_pool, prop->mmu_pgt_addr +
-			prop->mmu_hop0_tables_total_size,
-			prop->mmu_pgt_size - prop->mmu_hop0_tables_total_size,
-			-1);
-	if (rc) {
-		dev_err(hdev->dev, "Failed to add memory to page gen pool\n");
-		goto err_pool_add;
-	}
-
-	hdev->mmu_priv.dr.mmu_shadow_hop0 = kvcalloc(prop->max_asid, prop->mmu_hop_table_size,
-										GFP_KERNEL);
-	if (ZERO_OR_NULL_PTR(hdev->mmu_priv.dr.mmu_shadow_hop0)) {
-		rc = -ENOMEM;
-		goto err_pool_add;
-	}
-
-	/* MMU H/W init will be done in device hw_init() */
-
-	return 0;
-
-err_pool_add:
-	gen_pool_destroy(hdev->mmu_priv.dr.mmu_pgt_pool);
-
-	return rc;
-}
-
-/**
- * hl_mmu_v1_fini() - release the MMU module.
- * @hdev: habanalabs device structure.
- *
- * This function does the following:
- * - Disable MMU in H/W.
- * - Free the pgt_infos pool.
- *
- * All contexts should be freed before calling this function.
- */
-static void hl_mmu_v1_fini(struct hl_device *hdev)
-{
-	/* MMU H/W fini was already done in device hw_fini() */
-
-	if (!ZERO_OR_NULL_PTR(hdev->mmu_priv.dr.mmu_shadow_hop0)) {
-		kvfree(hdev->mmu_priv.dr.mmu_shadow_hop0);
-		gen_pool_destroy(hdev->mmu_priv.dr.mmu_pgt_pool);
-
-		/* Make sure that if we arrive here again without init was
-		 * called we won't cause kernel panic. This can happen for
-		 * example if we fail during hard reset code at certain points
-		 */
-		hdev->mmu_priv.dr.mmu_shadow_hop0 = NULL;
-	}
+	hl_mmu_dr_flush(ctx);
 }
 
 /**
@@ -476,7 +212,7 @@ static void hl_mmu_v1_ctx_fini(struct hl_ctx *ctx)
 		dev_err_ratelimited(hdev->dev,
 			"pgt_info of addr 0x%llx of asid %d was not destroyed, num_ptes: %d\n",
 			pgt_info->phys_addr, ctx->asid, pgt_info->num_of_ptes);
-		_free_hop(ctx, pgt_info);
+		hl_mmu_dr_free_pgt_node(ctx, pgt_info);
 	}
 }
 
@@ -495,7 +231,7 @@ static int hl_mmu_v1_unmap(struct hl_ctx *ctx,
 
 	for (hop_idx = MMU_HOP0; hop_idx < MMU_HOP4; hop_idx++) {
 		if (hop_idx == MMU_HOP0) {
-			hop_addr[hop_idx] = get_hop0_addr(ctx);
+			hop_addr[hop_idx] = hl_mmu_dr_get_hop0_addr(ctx);
 		} else {
 			hop_addr[hop_idx] = hl_mmu_get_next_hop_addr(ctx, curr_pte);
 			if (hop_addr[hop_idx] == ULLONG_MAX)
@@ -546,30 +282,30 @@ static int hl_mmu_v1_unmap(struct hl_ctx *ctx,
 		}
 
 		hop_idx = MMU_HOP3;
-		write_final_pte(ctx, hop_pte_addr[hop_idx], default_pte);
-		put_pte(ctx, hop_addr[hop_idx]);
+		hl_mmu_dr_write_final_pte(ctx, hop_pte_addr[hop_idx], default_pte);
+		hl_mmu_dr_put_pte(ctx, hop_addr[hop_idx]);
 	} else {
 		if (!(curr_pte & PAGE_PRESENT_MASK))
 			goto not_mapped;
 
 		if (hop_addr[MMU_HOP4])
-			clear_pte(ctx, hop_pte_addr[MMU_HOP4]);
+			hl_mmu_dr_clear_pte(ctx, hop_pte_addr[MMU_HOP4]);
 		else
-			clear_pte(ctx, hop_pte_addr[MMU_HOP3]);
+			hl_mmu_dr_clear_pte(ctx, hop_pte_addr[MMU_HOP3]);
 
-		if (hop_addr[MMU_HOP4] && !put_pte(ctx, hop_addr[MMU_HOP4]))
+		if (hop_addr[MMU_HOP4] && !hl_mmu_dr_put_pte(ctx, hop_addr[MMU_HOP4]))
 			clear_hop3 = true;
 
 		if (!clear_hop3)
 			goto mapped;
 
 		for (hop_idx = MMU_HOP3; hop_idx >= 0; hop_idx--) {
-			clear_pte(ctx, hop_pte_addr[hop_idx]);
+			hl_mmu_dr_clear_pte(ctx, hop_pte_addr[hop_idx]);
 
 			if (hop_idx == MMU_HOP0)
 				break;
 
-			if (put_pte(ctx, hop_addr[hop_idx]))
+			if (hl_mmu_dr_put_pte(ctx, hop_addr[hop_idx]))
 				goto mapped;
 		}
 	}
@@ -616,10 +352,10 @@ static int hl_mmu_v1_map(struct hl_ctx *ctx, u64 virt_addr, u64 phys_addr,
 
 	for (hop_idx = MMU_HOP0; hop_idx < num_hops; hop_idx++) {
 		if (hop_idx == MMU_HOP0) {
-			hop_addr[hop_idx] = get_hop0_addr(ctx);
+			hop_addr[hop_idx] = hl_mmu_dr_get_hop0_addr(ctx);
 		} else {
 			hop_addr[hop_idx] =
-					get_alloc_next_hop_addr(ctx, curr_pte, &hop_new[hop_idx]);
+				hl_mmu_dr_get_alloc_next_hop_addr(ctx, curr_pte, &hop_new[hop_idx]);
 			if (hop_addr[hop_idx] == ULLONG_MAX)
 				goto err;
 		}
@@ -666,27 +402,27 @@ static int hl_mmu_v1_map(struct hl_ctx *ctx, u64 virt_addr, u64 phys_addr,
 	curr_pte = (phys_addr & HOP_PHYS_ADDR_MASK) | mmu_prop->last_mask
 			| PAGE_PRESENT_MASK;
 
-	write_final_pte(ctx, hop_pte_addr[num_hops - 1], curr_pte);
+	hl_mmu_dr_write_final_pte(ctx, hop_pte_addr[num_hops - 1], curr_pte);
 
 	for (hop_idx = MMU_HOP1; hop_idx < num_hops; hop_idx++) {
 		prev_hop = hop_idx - 1;
 
 		if (hop_new[hop_idx]) {
 			curr_pte = (hop_addr[hop_idx] & HOP_PHYS_ADDR_MASK) | PAGE_PRESENT_MASK;
-			write_pte(ctx, hop_pte_addr[prev_hop], curr_pte);
+			hl_mmu_dr_write_pte(ctx, hop_pte_addr[prev_hop], curr_pte);
 			if (hop_idx != MMU_HOP1)
-				get_pte(ctx, hop_addr[prev_hop]);
+				hl_mmu_dr_get_pte(ctx, hop_addr[prev_hop]);
 		}
 	}
 
-	get_pte(ctx, hop_addr[num_hops - 1]);
+	hl_mmu_dr_get_pte(ctx, hop_addr[num_hops - 1]);
 
 	return 0;
 
 err:
 	for (hop_idx = num_hops; hop_idx > MMU_HOP0; hop_idx--) {
 		if (hop_new[hop_idx])
-			free_hop(ctx, hop_addr[hop_idx]);
+			hl_mmu_dr_free_hop(ctx, hop_addr[hop_idx]);
 	}
 
 	return rc;
@@ -752,7 +488,7 @@ static int hl_mmu_v1_get_tlb_info(struct hl_ctx *ctx, u64 virt_addr,
 	if (is_huge)
 		used_hops--;
 
-	hops->hop_info[0].hop_addr = get_phys_hop0_addr(ctx);
+	hops->hop_info[0].hop_addr = hl_mmu_dr_get_phys_hop0_addr(ctx);
 	hops->hop_info[0].hop_pte_addr =
 			hl_mmu_get_hop_pte_phys_addr(ctx, mmu_prop, 0,
 					hops->hop_info[0].hop_addr, virt_addr);
@@ -801,13 +537,13 @@ static int hl_mmu_v1_get_tlb_info(struct hl_ctx *ctx, u64 virt_addr,
  */
 void hl_mmu_v1_set_funcs(struct hl_device *hdev, struct hl_mmu_funcs *mmu)
 {
-	mmu->init = hl_mmu_v1_init;
-	mmu->fini = hl_mmu_v1_fini;
+	mmu->init = hl_mmu_dr_init;
+	mmu->fini = hl_mmu_dr_fini;
 	mmu->ctx_init = hl_mmu_v1_ctx_init;
 	mmu->ctx_fini = hl_mmu_v1_ctx_fini;
 	mmu->map = hl_mmu_v1_map;
 	mmu->unmap = hl_mmu_v1_unmap;
-	mmu->flush = flush;
+	mmu->flush = hl_mmu_dr_flush;
 	mmu->swap_out = hl_mmu_v1_swap_out;
 	mmu->swap_in = hl_mmu_v1_swap_in;
 	mmu->get_tlb_info = hl_mmu_v1_get_tlb_info;