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Message-Id: <20201109170853.23683-1-ogabbay@kernel.org>
Date: Mon, 9 Nov 2020 19:08:52 +0200
From: Oded Gabbay <ogabbay@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: SW_Drivers@...ana.ai
Subject: [PATCH] habanalabs: move asic property to correct structure
Whether an ASIC has MMU towards its DRAM is an ASIC property, so
move it to the asic fixed properties structure.
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
drivers/misc/habanalabs/common/debugfs.c | 2 +-
drivers/misc/habanalabs/common/habanalabs.h | 4 ++--
drivers/misc/habanalabs/common/memory.c | 6 +++---
drivers/misc/habanalabs/common/mmu_v1.c | 4 ++--
drivers/misc/habanalabs/gaudi/gaudi.c | 3 +--
drivers/misc/habanalabs/goya/goya.c | 2 +-
6 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c
index 104b9686e57b..3d9bd86312e2 100644
--- a/drivers/misc/habanalabs/common/debugfs.c
+++ b/drivers/misc/habanalabs/common/debugfs.c
@@ -598,7 +598,7 @@ static bool hl_is_device_va(struct hl_device *hdev, u64 addr)
if (!hdev->mmu_enable)
goto out;
- if (hdev->dram_supports_virtual_memory &&
+ if (prop->dram_supports_virtual_memory &&
(addr >= prop->dmmu.start_addr && addr < prop->dmmu.end_addr))
return true;
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index 822f90087e04..a1d82de60ef6 100644
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -411,6 +411,7 @@ struct hl_mmu_properties {
* false otherwise
* @fw_security_status_valid: security status bits are valid and can be fetched
* from BOOT_DEV_STS0
+ * @dram_supports_virtual_memory: is there an MMU towards the DRAM
*/
struct asic_fixed_properties {
struct hw_queue_properties *hw_queues_props;
@@ -467,6 +468,7 @@ struct asic_fixed_properties {
u8 completion_queues_count;
u8 fw_security_disabled;
u8 fw_security_status_valid;
+ u8 dram_supports_virtual_memory;
};
/**
@@ -1772,7 +1774,6 @@ struct hl_mmu_funcs {
* @heartbeat: is heartbeat sanity check towards CPU-CP enabled.
* @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.
* @memory_scrub: true to perform device memory scrub in various locations,
* such as context-switch, context close, page free, etc.
@@ -1886,7 +1887,6 @@ struct hl_device {
u8 hard_reset_pending;
u8 heartbeat;
u8 reset_on_lockup;
- u8 dram_supports_virtual_memory;
u8 dram_default_page_mapping;
u8 memory_scrub;
u8 pmmu_huge_range;
diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index 01e93e83d3af..f27ca80d3c3c 100644
--- a/drivers/misc/habanalabs/common/memory.c
+++ b/drivers/misc/habanalabs/common/memory.c
@@ -1351,7 +1351,7 @@ int hl_mem_ioctl(struct hl_fpriv *hpriv, void *data)
* the user's input, the driver can't ensure the validity
* of this accounting.
*/
- if (!hdev->dram_supports_virtual_memory) {
+ if (!hdev->asic_prop.dram_supports_virtual_memory) {
atomic64_add(args->in.alloc.mem_size,
&ctx->dram_phys_mem);
atomic64_add(args->in.alloc.mem_size,
@@ -1380,7 +1380,7 @@ int hl_mem_ioctl(struct hl_fpriv *hpriv, void *data)
* the user's input, the driver can't ensure the validity
* of this accounting.
*/
- if (!hdev->dram_supports_virtual_memory) {
+ if (!hdev->asic_prop.dram_supports_virtual_memory) {
atomic64_sub(args->in.alloc.mem_size,
&ctx->dram_phys_mem);
atomic64_sub(args->in.alloc.mem_size,
@@ -1915,7 +1915,7 @@ void hl_vm_ctx_fini(struct hl_ctx *ctx)
* because the user notifies us on allocations. If the user is no more,
* all DRAM is available
*/
- if (!ctx->hdev->dram_supports_virtual_memory)
+ if (!ctx->hdev->asic_prop.dram_supports_virtual_memory)
atomic64_set(&ctx->hdev->dram_used_mem, 0);
}
diff --git a/drivers/misc/habanalabs/common/mmu_v1.c b/drivers/misc/habanalabs/common/mmu_v1.c
index ac3784523baa..5f62cb158eef 100644
--- a/drivers/misc/habanalabs/common/mmu_v1.c
+++ b/drivers/misc/habanalabs/common/mmu_v1.c
@@ -262,7 +262,7 @@ static int dram_default_mapping_init(struct hl_ctx *ctx)
hop2_pte_addr, hop3_pte_addr, pte_val;
int rc, i, j, hop3_allocated = 0;
- if ((!hdev->dram_supports_virtual_memory) ||
+ if ((!prop->dram_supports_virtual_memory) ||
(!hdev->dram_default_page_mapping) ||
(ctx->asid == HL_KERNEL_ASID_ID))
return 0;
@@ -362,7 +362,7 @@ static void dram_default_mapping_fini(struct hl_ctx *ctx)
hop2_pte_addr, hop3_pte_addr;
int i, j;
- if ((!hdev->dram_supports_virtual_memory) ||
+ if ((!prop->dram_supports_virtual_memory) ||
(!hdev->dram_default_page_mapping) ||
(ctx->asid == HL_KERNEL_ASID_ID))
return;
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 1135b2cc5860..8d6cffd28381 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -462,6 +462,7 @@ static int gaudi_get_fixed_properties(struct hl_device *hdev)
prop->mmu_hop_table_size = HOP_TABLE_SIZE;
prop->mmu_hop0_tables_total_size = HOP0_TABLES_TOTAL_SIZE;
prop->dram_page_size = PAGE_SIZE_2MB;
+ prop->dram_supports_virtual_memory = false;
prop->pmmu.hop0_shift = HOP0_SHIFT;
prop->pmmu.hop1_shift = HOP1_SHIFT;
@@ -3573,8 +3574,6 @@ static int gaudi_mmu_init(struct hl_device *hdev)
if (gaudi->hw_cap_initialized & HW_CAP_MMU)
return 0;
- hdev->dram_supports_virtual_memory = false;
-
for (i = 0 ; i < prop->max_asid ; i++) {
hop0_addr = prop->mmu_pgt_addr +
(i * prop->mmu_hop_table_size);
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 002fc53fb39d..bf21f05f7849 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -410,6 +410,7 @@ int goya_get_fixed_properties(struct hl_device *hdev)
prop->mmu_hop_table_size = HOP_TABLE_SIZE;
prop->mmu_hop0_tables_total_size = HOP0_TABLES_TOTAL_SIZE;
prop->dram_page_size = PAGE_SIZE_2MB;
+ prop->dram_supports_virtual_memory = true;
prop->dmmu.hop0_shift = HOP0_SHIFT;
prop->dmmu.hop1_shift = HOP1_SHIFT;
@@ -2481,7 +2482,6 @@ int goya_mmu_init(struct hl_device *hdev)
if (goya->hw_cap_initialized & HW_CAP_MMU)
return 0;
- hdev->dram_supports_virtual_memory = true;
hdev->dram_default_page_mapping = true;
for (i = 0 ; i < prop->max_asid ; i++) {
--
2.17.1
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