From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/drivers/ntb/hw/intel/ntb_hw_gen3.c | 44 +++++++++++++++++++++++++++++++++++++-------
1 files changed, 37 insertions(+), 7 deletions(-)
diff --git a/kernel/drivers/ntb/hw/intel/ntb_hw_gen3.c b/kernel/drivers/ntb/hw/intel/ntb_hw_gen3.c
index b3fa247..ffcfc3e 100644
--- a/kernel/drivers/ntb/hw/intel/ntb_hw_gen3.c
+++ b/kernel/drivers/ntb/hw/intel/ntb_hw_gen3.c
@@ -415,9 +415,8 @@
return ret;
}
-static int intel_ntb3_link_enable(struct ntb_dev *ntb,
- enum ntb_speed max_speed,
- enum ntb_width max_width)
+int intel_ntb3_link_enable(struct ntb_dev *ntb, enum ntb_speed max_speed,
+ enum ntb_width max_width)
{
struct intel_ntb_dev *ndev;
u32 ntb_ctl;
@@ -532,7 +531,38 @@
return 0;
}
-static int intel_ntb3_peer_db_set(struct ntb_dev *ntb, u64 db_bits)
+int intel_ntb3_peer_db_addr(struct ntb_dev *ntb, phys_addr_t *db_addr,
+ resource_size_t *db_size,
+ u64 *db_data, int db_bit)
+{
+ phys_addr_t db_addr_base;
+ struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+
+ if (unlikely(db_bit >= BITS_PER_LONG_LONG))
+ return -EINVAL;
+
+ if (unlikely(BIT_ULL(db_bit) & ~ntb_ndev(ntb)->db_valid_mask))
+ return -EINVAL;
+
+ ndev_db_addr(ndev, &db_addr_base, db_size, ndev->peer_addr,
+ ndev->peer_reg->db_bell);
+
+ if (db_addr) {
+ *db_addr = db_addr_base + (db_bit * 4);
+ dev_dbg(&ndev->ntb.pdev->dev, "Peer db addr %llx db bit %d\n",
+ *db_addr, db_bit);
+ }
+
+ if (db_data) {
+ *db_data = 1;
+ dev_dbg(&ndev->ntb.pdev->dev, "Peer db data %llx db bit %d\n",
+ *db_data, db_bit);
+ }
+
+ return 0;
+}
+
+int intel_ntb3_peer_db_set(struct ntb_dev *ntb, u64 db_bits)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
int bit;
@@ -550,7 +580,7 @@
return 0;
}
-static u64 intel_ntb3_db_read(struct ntb_dev *ntb)
+u64 intel_ntb3_db_read(struct ntb_dev *ntb)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
@@ -559,7 +589,7 @@
ndev->self_reg->db_clear);
}
-static int intel_ntb3_db_clear(struct ntb_dev *ntb, u64 db_bits)
+int intel_ntb3_db_clear(struct ntb_dev *ntb, u64 db_bits)
{
struct intel_ntb_dev *ndev = ntb_ndev(ntb);
@@ -584,7 +614,7 @@
.db_clear = intel_ntb3_db_clear,
.db_set_mask = intel_ntb_db_set_mask,
.db_clear_mask = intel_ntb_db_clear_mask,
- .peer_db_addr = intel_ntb_peer_db_addr,
+ .peer_db_addr = intel_ntb3_peer_db_addr,
.peer_db_set = intel_ntb3_peer_db_set,
.spad_is_unsafe = intel_ntb_spad_is_unsafe,
.spad_count = intel_ntb_spad_count,
--
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