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path: root/drivers/hwtracing/coresight/coresight-tmc-etr.c
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Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc-etr.c')
-rw-r--r--drivers/hwtracing/coresight/coresight-tmc-etr.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index b29c2db94d96..714f9e867e5f 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -255,6 +255,7 @@ void tmc_free_sg_table(struct tmc_sg_table *sg_table)
tmc_free_table_pages(sg_table);
tmc_free_data_pages(sg_table);
}
+EXPORT_SYMBOL_GPL(tmc_free_sg_table);
/*
* Alloc pages for the table. Since this will be used by the device,
@@ -340,6 +341,7 @@ struct tmc_sg_table *tmc_alloc_sg_table(struct device *dev,
return sg_table;
}
+EXPORT_SYMBOL_GPL(tmc_alloc_sg_table);
/*
* tmc_sg_table_sync_data_range: Sync the data buffer written
@@ -360,6 +362,7 @@ void tmc_sg_table_sync_data_range(struct tmc_sg_table *table,
PAGE_SIZE, DMA_FROM_DEVICE);
}
}
+EXPORT_SYMBOL_GPL(tmc_sg_table_sync_data_range);
/* tmc_sg_sync_table: Sync the page table */
void tmc_sg_table_sync_table(struct tmc_sg_table *sg_table)
@@ -372,6 +375,7 @@ void tmc_sg_table_sync_table(struct tmc_sg_table *sg_table)
dma_sync_single_for_device(real_dev, table_pages->daddrs[i],
PAGE_SIZE, DMA_TO_DEVICE);
}
+EXPORT_SYMBOL_GPL(tmc_sg_table_sync_table);
/*
* tmc_sg_table_get_data: Get the buffer pointer for data @offset
@@ -401,6 +405,7 @@ ssize_t tmc_sg_table_get_data(struct tmc_sg_table *sg_table,
*bufpp = page_address(data_pages->pages[pg_idx]) + pg_offset;
return len;
}
+EXPORT_SYMBOL_GPL(tmc_sg_table_get_data);
#ifdef ETR_SG_DEBUG
/* Map a dma address to virtual address */
@@ -766,6 +771,7 @@ tmc_etr_get_catu_device(struct tmc_drvdata *drvdata)
return NULL;
}
+EXPORT_SYMBOL_GPL(tmc_etr_get_catu_device);
static inline int tmc_etr_enable_catu(struct tmc_drvdata *drvdata,
struct etr_buf *etr_buf)
@@ -788,10 +794,21 @@ static inline void tmc_etr_disable_catu(struct tmc_drvdata *drvdata)
static const struct etr_buf_operations *etr_buf_ops[] = {
[ETR_MODE_FLAT] = &etr_flat_buf_ops,
[ETR_MODE_ETR_SG] = &etr_sg_buf_ops,
- [ETR_MODE_CATU] = IS_ENABLED(CONFIG_CORESIGHT_CATU)
- ? &etr_catu_buf_ops : NULL,
+ [ETR_MODE_CATU] = NULL,
};
+void tmc_etr_set_catu_ops(const struct etr_buf_operations *catu)
+{
+ etr_buf_ops[ETR_MODE_CATU] = catu;
+}
+EXPORT_SYMBOL_GPL(tmc_etr_set_catu_ops);
+
+void tmc_etr_remove_catu_ops(void)
+{
+ etr_buf_ops[ETR_MODE_CATU] = NULL;
+}
+EXPORT_SYMBOL_GPL(tmc_etr_remove_catu_ops);
+
static inline int tmc_etr_mode_alloc_buf(int mode,
struct tmc_drvdata *drvdata,
struct etr_buf *etr_buf, int node,