The mailbox payload pointer is void __iomem *. Casting it to u32 * is
incorrect and causes sparse warning.
cast removes address space '__iomem' of expression
Fixes: b87f920b9344 ("accel/amdxdna: Support hardware mailbox")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202501130921.ktqwsMLH-lkp@xxxxxxxxx/
Signed-off-by: Lizhi Hou <lizhi.hou@xxxxxxx>
---
drivers/accel/amdxdna/aie2_ctx.c | 22 +++++++++----------
drivers/accel/amdxdna/aie2_error.c | 8 +++----
drivers/accel/amdxdna/aie2_message.c | 10 ++++-----
drivers/accel/amdxdna/aie2_pci.h | 10 ++++-----
drivers/accel/amdxdna/amdxdna_mailbox.c | 6 ++---
drivers/accel/amdxdna/amdxdna_mailbox.h | 2 +-
.../accel/amdxdna/amdxdna_mailbox_helper.c | 6 ++---
.../accel/amdxdna/amdxdna_mailbox_helper.h | 2 +-
8 files changed, 32 insertions(+), 34 deletions(-)
diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
index 5f43db02b240..5c69ae3c40f8 100644
--- a/drivers/accel/amdxdna/aie2_ctx.c
+++ b/drivers/accel/amdxdna/aie2_ctx.c
@@ -185,7 +185,7 @@ aie2_sched_notify(struct amdxdna_sched_job *job)
}
static int
-aie2_sched_resp_handler(void *handle, const u32 *data, size_t size)
+aie2_sched_resp_handler(void *handle, void __iomem *data, size_t size)
{
struct amdxdna_sched_job *job = handle;
struct amdxdna_gem_obj *cmd_abo;
@@ -203,7 +203,7 @@ aie2_sched_resp_handler(void *handle, const u32 *data, size_t size)
goto out;
}
- status = *data;
+ status = readl(data);
XDNA_DBG(job->hwctx->client->xdna, "Resp status 0x%x", status);
if (status == AIE2_STATUS_SUCCESS)
amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_COMPLETED);
@@ -216,7 +216,7 @@ aie2_sched_resp_handler(void *handle, const u32 *data, size_t size)
}
static int
-aie2_sched_nocmd_resp_handler(void *handle, const u32 *data, size_t size)
+aie2_sched_nocmd_resp_handler(void *handle, void __iomem *data, size_t size)
{
struct amdxdna_sched_job *job = handle;
u32 ret = 0;
@@ -230,7 +230,7 @@ aie2_sched_nocmd_resp_handler(void *handle, const u32 *data, size_t size)
goto out;
}
- status = *data;
+ status = readl(data);
XDNA_DBG(job->hwctx->client->xdna, "Resp status 0x%x", status);
out:
@@ -239,14 +239,14 @@ aie2_sched_nocmd_resp_handler(void *handle, const u32 *data, size_t size)
}
static int
-aie2_sched_cmdlist_resp_handler(void *handle, const u32 *data, size_t size)
+aie2_sched_cmdlist_resp_handler(void *handle, void __iomem *data, size_t size)
{
struct amdxdna_sched_job *job = handle;
struct amdxdna_gem_obj *cmd_abo;
- struct cmd_chain_resp *resp;
struct amdxdna_dev *xdna;
u32 fail_cmd_status;
u32 fail_cmd_idx;
+ u32 cmd_status;
u32 ret = 0;
cmd_abo = job->cmd_bo;
@@ -256,17 +256,17 @@ aie2_sched_cmdlist_resp_handler(void *handle, const u32 *data, size_t size)
goto out;
}
- resp = (struct cmd_chain_resp *)data;
+ cmd_status = readl(data + offsetof(struct cmd_chain_resp, status));
xdna = job->hwctx->client->xdna;
- XDNA_DBG(xdna, "Status 0x%x", resp->status);
- if (resp->status == AIE2_STATUS_SUCCESS) {
+ XDNA_DBG(xdna, "Status 0x%x", cmd_status);
+ if (cmd_status == AIE2_STATUS_SUCCESS) {
amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_COMPLETED);
goto out;
}
/* Slow path to handle error, read from ringbuf on BAR */
- fail_cmd_idx = resp->fail_cmd_idx;
- fail_cmd_status = resp->fail_cmd_status;
+ fail_cmd_idx = readl(data + offsetof(struct cmd_chain_resp, fail_cmd_idx));
+ fail_cmd_status = readl(data + offsetof(struct cmd_chain_resp, fail_cmd_status));
XDNA_DBG(xdna, "Failed cmd idx %d, status 0x%x",
fail_cmd_idx, fail_cmd_status);
diff --git a/drivers/accel/amdxdna/aie2_error.c b/drivers/accel/amdxdna/aie2_error.c
index b1defaa8513b..5ee905632a39 100644
--- a/drivers/accel/amdxdna/aie2_error.c
+++ b/drivers/accel/amdxdna/aie2_error.c
@@ -209,16 +209,14 @@ static u32 aie2_error_backtrack(struct amdxdna_dev_hdl *ndev, void *err_info, u3
return err_col;
}
-static int aie2_error_async_cb(void *handle, const u32 *data, size_t size)
+static int aie2_error_async_cb(void *handle, void __iomem *data, size_t size)
{
- struct async_event_msg_resp *resp;
struct async_event *e = handle;
if (data) {
- resp = (struct async_event_msg_resp *)data;
- e->resp.type = resp->type;
+ e->resp.type = readl(data + offsetof(struct async_event_msg_resp, type));
wmb(); /* Update status in the end, so that no lock for here */
- e->resp.status = resp->status;
+ e->resp.status = readl(data + offsetof(struct async_event_msg_resp, status));
}
queue_work(e->wq, &e->work);
return 0;
diff --git a/drivers/accel/amdxdna/aie2_message.c b/drivers/accel/amdxdna/aie2_message.c
index 9e2c9a44f76a..bf4219e32cc1 100644
--- a/drivers/accel/amdxdna/aie2_message.c
+++ b/drivers/accel/amdxdna/aie2_message.c
@@ -356,7 +356,7 @@ int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf,
}
int aie2_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size,
- void *handle, int (*cb)(void*, const u32 *, size_t))
+ void *handle, int (*cb)(void*, void __iomem *, size_t))
{
struct async_event_msg_req req = { 0 };
struct xdna_mailbox_msg msg = {
@@ -435,7 +435,7 @@ int aie2_config_cu(struct amdxdna_hwctx *hwctx)
}
int aie2_execbuf(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t))
+ int (*notify_cb)(void *, void __iomem *, size_t))
{
struct mailbox_channel *chann = hwctx->priv->mbox_chann;
struct amdxdna_dev *xdna = hwctx->client->xdna;
@@ -640,7 +640,7 @@ aie2_cmd_op_to_msg_op(u32 op)
int aie2_cmdlist_multi_execbuf(struct amdxdna_hwctx *hwctx,
struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t))
+ int (*notify_cb)(void *, void __iomem *, size_t))
{
struct amdxdna_gem_obj *cmdbuf_abo = aie2_cmdlist_get_cmd_buf(job);
struct mailbox_channel *chann = hwctx->priv->mbox_chann;
@@ -705,7 +705,7 @@ int aie2_cmdlist_multi_execbuf(struct amdxdna_hwctx *hwctx,
int aie2_cmdlist_single_execbuf(struct amdxdna_hwctx *hwctx,
struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t))
+ int (*notify_cb)(void *, void __iomem *, size_t))
{
struct amdxdna_gem_obj *cmdbuf_abo = aie2_cmdlist_get_cmd_buf(job);
struct mailbox_channel *chann = hwctx->priv->mbox_chann;
@@ -740,7 +740,7 @@ int aie2_cmdlist_single_execbuf(struct amdxdna_hwctx *hwctx,
}
int aie2_sync_bo(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t))
+ int (*notify_cb)(void *, void __iomem *, size_t))
{
struct mailbox_channel *chann = hwctx->priv->mbox_chann;
struct amdxdna_gem_obj *abo = to_xdna_obj(job->bos[0]);
diff --git a/drivers/accel/amdxdna/aie2_pci.h b/drivers/accel/amdxdna/aie2_pci.h
index f2d95531ddc2..385914840eaa 100644
--- a/drivers/accel/amdxdna/aie2_pci.h
+++ b/drivers/accel/amdxdna/aie2_pci.h
@@ -271,18 +271,18 @@ int aie2_destroy_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwc
int aie2_map_host_buf(struct amdxdna_dev_hdl *ndev, u32 context_id, u64 addr, u64 size);
int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf, u32 size, u32 *cols_filled);
int aie2_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size,
- void *handle, int (*cb)(void*, const u32 *, size_t));
+ void *handle, int (*cb)(void*, void __iomem *, size_t));
int aie2_config_cu(struct amdxdna_hwctx *hwctx);
int aie2_execbuf(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t));
+ int (*notify_cb)(void *, void __iomem *, size_t));
int aie2_cmdlist_single_execbuf(struct amdxdna_hwctx *hwctx,
struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t));
+ int (*notify_cb)(void *, void __iomem *, size_t));
int aie2_cmdlist_multi_execbuf(struct amdxdna_hwctx *hwctx,
struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t));
+ int (*notify_cb)(void *, void __iomem *, size_t));
int aie2_sync_bo(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
- int (*notify_cb)(void *, const u32 *, size_t));
+ int (*notify_cb)(void *, void __iomem *, size_t));
/* aie2_hwctx.c */
int aie2_hwctx_init(struct amdxdna_hwctx *hwctx);
diff --git a/drivers/accel/amdxdna/amdxdna_mailbox.c b/drivers/accel/amdxdna/amdxdna_mailbox.c
index 814b16bb1953..de7bf0fb4594 100644
--- a/drivers/accel/amdxdna/amdxdna_mailbox.c
+++ b/drivers/accel/amdxdna/amdxdna_mailbox.c
@@ -90,7 +90,7 @@ struct mailbox_pkg {
struct mailbox_msg {
void *handle;
- int (*notify_cb)(void *handle, const u32 *data, size_t size);
+ int (*notify_cb)(void *handle, void __iomem *data, size_t size);
size_t pkg_size; /* package size in bytes */
struct mailbox_pkg pkg;
};
@@ -243,7 +243,7 @@ mailbox_send_msg(struct mailbox_channel *mb_chann, struct mailbox_msg *mb_msg)
static int
mailbox_get_resp(struct mailbox_channel *mb_chann, struct xdna_msg_header *header,
- void *data)
+ void __iomem *data)
{
struct mailbox_msg *mb_msg;
int msg_id;
@@ -331,7 +331,7 @@ static int mailbox_get_msg(struct mailbox_channel *mb_chann)
memcpy_fromio((u32 *)&header + 1, read_addr, rest);
read_addr += rest;
- ret = mailbox_get_resp(mb_chann, &header, (u32 *)read_addr);
+ ret = mailbox_get_resp(mb_chann, &header, read_addr);
mailbox_set_headptr(mb_chann, head + msg_size);
/* After update head, it can equal to ringbuf_size. This is expected. */
diff --git a/drivers/accel/amdxdna/amdxdna_mailbox.h b/drivers/accel/amdxdna/amdxdna_mailbox.h
index 57954c303bdd..ea367f2fb738 100644
--- a/drivers/accel/amdxdna/amdxdna_mailbox.h
+++ b/drivers/accel/amdxdna/amdxdna_mailbox.h
@@ -25,7 +25,7 @@ struct mailbox_channel;
struct xdna_mailbox_msg {
u32 opcode;
void *handle;
- int (*notify_cb)(void *handle, const u32 *data, size_t size);
+ int (*notify_cb)(void *handle, void __iomem *data, size_t size);
u8 *send_data;
size_t send_size;
};
diff --git a/drivers/accel/amdxdna/amdxdna_mailbox_helper.c b/drivers/accel/amdxdna/amdxdna_mailbox_helper.c
index 5139a9c96a91..6d0c24513476 100644
--- a/drivers/accel/amdxdna/amdxdna_mailbox_helper.c
+++ b/drivers/accel/amdxdna/amdxdna_mailbox_helper.c
@@ -16,7 +16,7 @@
#include "amdxdna_mailbox_helper.h"
#include "amdxdna_pci_drv.h"
-int xdna_msg_cb(void *handle, const u32 *data, size_t size)
+int xdna_msg_cb(void *handle, void __iomem *data, size_t size)
{
struct xdna_notify *cb_arg = handle;
int ret;
@@ -29,9 +29,9 @@ int xdna_msg_cb(void *handle, const u32 *data, size_t size)
goto out;
}
+ memcpy_fromio(cb_arg->data, data, cb_arg->size);
print_hex_dump_debug("resp data: ", DUMP_PREFIX_OFFSET,
- 16, 4, data, cb_arg->size, true);
- memcpy(cb_arg->data, data, cb_arg->size);
+ 16, 4, cb_arg->data, cb_arg->size, true);
out:
ret = cb_arg->error;
complete(&cb_arg->comp);
diff --git a/drivers/accel/amdxdna/amdxdna_mailbox_helper.h b/drivers/accel/amdxdna/amdxdna_mailbox_helper.h
index 23e1317b79fe..710ff8873d61 100644
--- a/drivers/accel/amdxdna/amdxdna_mailbox_helper.h
+++ b/drivers/accel/amdxdna/amdxdna_mailbox_helper.h
@@ -35,7 +35,7 @@ struct xdna_notify {
.notify_cb = xdna_msg_cb, \
}
-int xdna_msg_cb(void *handle, const u32 *data, size_t size);
+int xdna_msg_cb(void *handle, void __iomem *data, size_t size);
int xdna_send_msg_wait(struct amdxdna_dev *xdna, struct mailbox_channel *chann,
struct xdna_mailbox_msg *msg);
--
2.34.1
