habanalabs/gaudi2: add page fault notify event

Each time page fault happens, besides capturing its data, also notify
the user about it.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c
index 61960fa059e0a6a2763221bc1196aea500d5ed71..65c9b535aa69865ed59d75f1ba20c50cd256e59d 100644 (file)
--- a/drivers/misc/habanalabs/gaudi2/gaudi2.c
+++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c
@@ -8253,7 +8253,8 @@ static void gaudi2_handle_hif_fatal(struct hl_device *hdev, u16 event_type, u64
        }
 }
 
-static void gaudi2_handle_page_error(struct hl_device *hdev, u64 mmu_base, bool is_pmmu)
+static void gaudi2_handle_page_error(struct hl_device *hdev, u64 mmu_base, bool is_pmmu,
+                                       u64 *event_mask)
 {
        u32 valid, val;
        u64 addr;
@@ -8270,7 +8271,7 @@ static void gaudi2_handle_page_error(struct hl_device *hdev, u64 mmu_base, bool
 
        dev_err_ratelimited(hdev->dev, "%s page fault on va 0x%llx\n",
                                is_pmmu ? "PMMU" : "HMMU", addr);
-       hl_capture_page_fault(hdev, addr, 0, is_pmmu);
+       hl_handle_page_fault(hdev, addr, 0, is_pmmu, event_mask);
 
        WREG32(mmu_base + MMU_OFFSET(mmDCORE0_HMMU0_MMU_PAGE_ERROR_CAPTURE), 0);
 }
@@ -8296,7 +8297,7 @@ static void gaudi2_handle_access_error(struct hl_device *hdev, u64 mmu_base, boo
 }
 
 static void gaudi2_handle_mmu_spi_sei_generic(struct hl_device *hdev, const char *mmu_name,
-                                               u64 mmu_base, bool is_pmmu)
+                                               u64 mmu_base, bool is_pmmu, u64 *event_mask)
 {
        u32 spi_sei_cause, interrupt_clr = 0x0;
        int i;
@@ -8309,7 +8310,7 @@ static void gaudi2_handle_mmu_spi_sei_generic(struct hl_device *hdev, const char
                                                mmu_name, gaudi2_mmu_spi_sei[i].cause);
 
                        if (i == 0)
-                               gaudi2_handle_page_error(hdev, mmu_base, is_pmmu);
+                               gaudi2_handle_page_error(hdev, mmu_base, is_pmmu, event_mask);
                        else if (i == 1)
                                gaudi2_handle_access_error(hdev, mmu_base, is_pmmu);
 
@@ -8381,7 +8382,7 @@ static bool gaudi2_handle_sm_err(struct hl_device *hdev, u8 sm_index)
        return reset;
 }
 
-static void gaudi2_handle_mmu_spi_sei_err(struct hl_device *hdev, u16 event_type)
+static void gaudi2_handle_mmu_spi_sei_err(struct hl_device *hdev, u16 event_type, u64 *event_mask)
 {
        bool is_pmmu = false;
        char desc[32];
@@ -8439,7 +8440,7 @@ static void gaudi2_handle_mmu_spi_sei_err(struct hl_device *hdev, u16 event_type
                return;
        }
 
-       gaudi2_handle_mmu_spi_sei_generic(hdev, desc, mmu_base, is_pmmu);
+       gaudi2_handle_mmu_spi_sei_generic(hdev, desc, mmu_base, is_pmmu, event_mask);
 }
 
 
@@ -8969,7 +8970,7 @@ static void gaudi2_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_ent
        case GAUDI2_EVENT_HMMU_0_AXI_ERR_RSP ... GAUDI2_EVENT_HMMU_12_AXI_ERR_RSP:
        case GAUDI2_EVENT_PMMU0_PAGE_FAULT_WR_PERM ... GAUDI2_EVENT_PMMU0_SECURITY_ERROR:
        case GAUDI2_EVENT_PMMU_AXI_ERR_RSP_0:
-               gaudi2_handle_mmu_spi_sei_err(hdev, event_type);
+               gaudi2_handle_mmu_spi_sei_err(hdev, event_type, &event_mask);
                reset_flags |= HL_DRV_RESET_FW_FATAL_ERR;
                event_mask |= HL_NOTIFIER_EVENT_USER_ENGINE_ERR;
                break;
@@ -10206,7 +10207,7 @@ static void gaudi2_ack_mmu_error(struct hl_device *hdev, u64 mmu_id)
        if (gaudi2_get_mmu_base(hdev, mmu_id, &mmu_base))
                return;
 
-       gaudi2_handle_page_error(hdev, mmu_base, is_pmmu);
+       gaudi2_handle_page_error(hdev, mmu_base, is_pmmu, NULL);
        gaudi2_handle_access_error(hdev, mmu_base, is_pmmu);
 }