From: Ranjani Sridharan ranjani.sridharan@linux.intel.com
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 --- sound/soc/sof/core.c | 59 --------------------------------------- sound/soc/sof/pcm.c | 2 +- sound/soc/sof/sof-priv.h | 2 +- sound/soc/sof/trace.c | 4 +-- sound/soc/sof/utils.c | 60 ++++++++++++++++++++++++++++++++++++++++ 5 files changed, 64 insertions(+), 63 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" @@ -213,64 +212,6 @@ void snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code, } 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. */ diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c index 549238a98b2a..9fd73ef08904 100644 --- a/sound/soc/sof/pcm.c +++ b/sound/soc/sof/pcm.c @@ -33,7 +33,7 @@ static int create_page_table(struct snd_soc_component *component, if (!spcm) return -EINVAL;
- return snd_sof_create_page_table(sdev, dmab, + return snd_sof_create_page_table(sdev->dev, dmab, spcm->stream[stream].page_table.area, size); }
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index 31f0eb31598a..18dd832f2053 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -499,7 +499,7 @@ int snd_sof_set_d0_substate(struct snd_sof_dev *sdev,
void snd_sof_new_platform_drv(struct snd_sof_dev *sdev);
-int snd_sof_create_page_table(struct snd_sof_dev *sdev, +int snd_sof_create_page_table(struct device *dev, struct snd_dma_buffer *dmab, unsigned char *page_table, size_t size);
diff --git a/sound/soc/sof/trace.c b/sound/soc/sof/trace.c index b0e4556c8536..4bb65030819d 100644 --- a/sound/soc/sof/trace.c +++ b/sound/soc/sof/trace.c @@ -250,8 +250,8 @@ int snd_sof_init_trace(struct snd_sof_dev *sdev) }
/* create compressed page table for audio firmware */ - ret = snd_sof_create_page_table(sdev, &sdev->dmatb, sdev->dmatp.area, - sdev->dmatb.bytes); + ret = snd_sof_create_page_table(sdev->dev, &sdev->dmatb, + sdev->dmatp.area, sdev->dmatb.bytes); if (ret < 0) goto table_err;
diff --git a/sound/soc/sof/utils.c b/sound/soc/sof/utils.c index 2ac4c3da0320..9831eb57df6c 100644 --- a/sound/soc/sof/utils.c +++ b/sound/soc/sof/utils.c @@ -10,6 +10,7 @@
#include <linux/io-64-nonatomic-lo-hi.h> #include <linux/platform_device.h> +#include <asm/unaligned.h> #include <sound/soc.h> #include <sound/sof.h> #include "sof-priv.h" @@ -110,3 +111,62 @@ void sof_block_read(struct snd_sof_dev *sdev, u32 bar, u32 offset, void *dest, memcpy_fromio(dest, src, size); } EXPORT_SYMBOL(sof_block_read); + +/* + * 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 device *dev, + struct snd_dma_buffer *dmab, + unsigned char *page_table, size_t size) +{ + int i, pages; + + pages = snd_sgbuf_aligned_pages(size); + + dev_dbg(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(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; +} +EXPORT_SYMBOL(snd_sof_create_page_table);