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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2012-11-15 15:55:30 +0100 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2012-11-20 15:59:00 +0100 |
| commit | b503fa01990f6875640339d8f4ba98dbc068f821 (patch) | |
| tree | 7364cad331b4b2a06622716f28398b8c05b69730 /drivers/dma | |
| parent | 9aedbdbab39c8aa58c0b2a0791fb10df6eebc123 (diff) | |
| download | linux-b503fa01990f6875640339d8f4ba98dbc068f821.tar.gz linux-b503fa01990f6875640339d8f4ba98dbc068f821.tar.bz2 linux-b503fa01990f6875640339d8f4ba98dbc068f821.zip | |
dma: mv_xor: remove the pool_size from platform_data
The pool_size is always PAGE_SIZE, and since it is a software
configuration paramter (and not a hardware description parameter), we
cannot make it part of the Device Tree binding, so we'd better remove
it from the platform_data as well.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/mv_xor.c | 15 | ||||
| -rw-r--r-- | drivers/dma/mv_xor.h | 1 |
2 files changed, 7 insertions, 9 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index fc983bf38438..ec741b4607e2 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -603,7 +603,7 @@ static int mv_xor_alloc_chan_resources(struct dma_chan *chan) int idx; struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan); struct mv_xor_desc_slot *slot = NULL; - int num_descs_in_pool = mv_chan->pool_size/MV_XOR_SLOT_SIZE; + int num_descs_in_pool = MV_XOR_POOL_SIZE/MV_XOR_SLOT_SIZE; /* Allocate descriptor slots */ idx = mv_chan->slots_allocated; @@ -1074,7 +1074,7 @@ static int mv_xor_channel_remove(struct mv_xor_chan *mv_chan) dma_async_device_unregister(&mv_chan->dmadev); - dma_free_coherent(dev, mv_chan->pool_size, + dma_free_coherent(dev, MV_XOR_POOL_SIZE, mv_chan->dma_desc_pool_virt, mv_chan->dma_desc_pool); list_for_each_entry_safe(chan, _chan, &mv_chan->dmadev.channels, @@ -1088,8 +1088,7 @@ static int mv_xor_channel_remove(struct mv_xor_chan *mv_chan) static struct mv_xor_chan * mv_xor_channel_add(struct mv_xor_device *xordev, struct platform_device *pdev, - int idx, dma_cap_mask_t cap_mask, - size_t pool_size, int irq) + int idx, dma_cap_mask_t cap_mask, int irq) { int ret = 0; struct mv_xor_chan *mv_chan; @@ -1109,9 +1108,8 @@ mv_xor_channel_add(struct mv_xor_device *xordev, * note: writecombine gives slightly better performance, but * requires that we explicitly flush the writes */ - mv_chan->pool_size = pool_size; mv_chan->dma_desc_pool_virt = - dma_alloc_writecombine(&pdev->dev, mv_chan->pool_size, + dma_alloc_writecombine(&pdev->dev, MV_XOR_POOL_SIZE, &mv_chan->dma_desc_pool, GFP_KERNEL); if (!mv_chan->dma_desc_pool_virt) return ERR_PTR(-ENOMEM); @@ -1193,7 +1191,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev, return mv_chan; err_free_dma: - dma_free_coherent(&pdev->dev, pool_size, + dma_free_coherent(&pdev->dev, MV_XOR_POOL_SIZE, mv_chan->dma_desc_pool_virt, mv_chan->dma_desc_pool); return ERR_PTR(ret); } @@ -1296,8 +1294,7 @@ static int mv_xor_probe(struct platform_device *pdev) xordev->channels[i] = mv_xor_channel_add(xordev, pdev, i, - cd->cap_mask, - cd->pool_size, irq); + cd->cap_mask, irq); if (IS_ERR(xordev->channels[i])) { ret = PTR_ERR(xordev->channels[i]); goto err_channel_add; diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index dab9f30e564a..698b4487b348 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -24,6 +24,7 @@ #include <linux/interrupt.h> #define USE_TIMER +#define MV_XOR_POOL_SIZE PAGE_SIZE #define MV_XOR_SLOT_SIZE 64 #define MV_XOR_THRESHOLD 1 #define MV_XOR_MAX_CHANNELS 2 |