ASoC: SOF: core: modify the signature for snd_sof_create_page_table

Modify the signature for snd_sof_create_page_table to
take struct device pointer as an argument instead of
struct snd_sof_dev as this will be used by both the SOF
core device and its clients. Also, move the definition
out of core.c to utils.c.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191204211556.12671-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 0 insertions, 59 deletions

diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 805918d3bcc0..6a7f342203e9 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -10,7 +10,6 @@
 
 #include <linux/firmware.h>
 #include <linux/module.h>
-#include <asm/unaligned.h>
 #include <sound/soc.h>
 #include <sound/sof.h>
 #include "sof-priv.h"
@@ -214,64 +213,6 @@ out:
 EXPORT_SYMBOL(snd_sof_get_status);
 
 /*
- * Generic buffer page table creation.
- * Take the each physical page address and drop the least significant unused
- * bits from each (based on PAGE_SIZE). Then pack valid page address bits
- * into compressed page table.
- */
-
-int snd_sof_create_page_table(struct snd_sof_dev *sdev,
-			      struct snd_dma_buffer *dmab,
-			      unsigned char *page_table, size_t size)
-{
-	int i, pages;
-
-	pages = snd_sgbuf_aligned_pages(size);
-
-	dev_dbg(sdev->dev, "generating page table for %p size 0x%zx pages %d\n",
-		dmab->area, size, pages);
-
-	for (i = 0; i < pages; i++) {
-		/*
-		 * The number of valid address bits for each page is 20.
-		 * idx determines the byte position within page_table
-		 * where the current page's address is stored
-		 * in the compressed page_table.
-		 * This can be calculated by multiplying the page number by 2.5.
-		 */
-		u32 idx = (5 * i) >> 1;
-		u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT;
-		u8 *pg_table;
-
-		dev_vdbg(sdev->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
-
-		pg_table = (u8 *)(page_table + idx);
-
-		/*
-		 * pagetable compression:
-		 * byte 0     byte 1     byte 2     byte 3     byte 4     byte 5
-		 * ___________pfn 0__________ __________pfn 1___________  _pfn 2...
-		 * .... ....  .... ....  .... ....  .... ....  .... ....  ....
-		 * It is created by:
-		 * 1. set current location to 0, PFN index i to 0
-		 * 2. put pfn[i] at current location in Little Endian byte order
-		 * 3. calculate an intermediate value as
-		 *    x = (pfn[i+1] << 4) | (pfn[i] & 0xf)
-		 * 4. put x at offset (current location + 2) in LE byte order
-		 * 5. increment current location by 5 bytes, increment i by 2
-		 * 6. continue to (2)
-		 */
-		if (i & 1)
-			put_unaligned_le32((pg_table[0] & 0xf) | pfn << 4,
-					   pg_table);
-		else
-			put_unaligned_le32(pfn, pg_table);
-	}
-
-	return pages;
-}
-
-/*
  * SOF Driver enumeration.
  */
 static int sof_machine_check(struct snd_sof_dev *sdev)