diff options
| author | Leonid Ravich <Leonid.Ravich@emc.com> | 2020-04-16 20:06:21 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-04-17 14:58:39 +0300 |
| commit | bd2bf302eef21aafa6da2cf829b87a9e33150658 (patch) | |
| tree | 1887924dc5c14c2c3e5eec3d3f8289474e184c99 /drivers/dma/ioat/dma.c | |
| parent | 2fea2906b5cbeffe49911e4735451af62fc121b4 (diff) | |
| download | linux-bd2bf302eef21aafa6da2cf829b87a9e33150658.tar.xz | |
dmaengine: ioat: fixing chunk sizing macros dependency
changing macros which assumption is chunk size of 2M,
which can be other size
prepare for changing allocation chunk size.
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Leonid Ravich <Leonid.Ravich@emc.com>
Link: https://lore.kernel.org/r/20200416170628.16196-1-leonid.ravich@dell.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/ioat/dma.c')
| -rw-r--r-- | drivers/dma/ioat/dma.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index 18c011e57592..1e0e6c1d5533 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -332,8 +332,8 @@ ioat_alloc_ring_ent(struct dma_chan *chan, int idx, gfp_t flags) u8 *pos; off_t offs; - chunk = idx / IOAT_DESCS_PER_2M; - idx &= (IOAT_DESCS_PER_2M - 1); + chunk = idx / IOAT_DESCS_PER_CHUNK; + idx &= (IOAT_DESCS_PER_CHUNK - 1); offs = idx * IOAT_DESC_SZ; pos = (u8 *)ioat_chan->descs[chunk].virt + offs; phys = ioat_chan->descs[chunk].hw + offs; @@ -370,7 +370,8 @@ ioat_alloc_ring(struct dma_chan *c, int order, gfp_t flags) if (!ring) return NULL; - ioat_chan->desc_chunks = chunks = (total_descs * IOAT_DESC_SZ) / SZ_2M; + chunks = (total_descs * IOAT_DESC_SZ) / IOAT_CHUNK_SIZE; + ioat_chan->desc_chunks = chunks; for (i = 0; i < chunks; i++) { struct ioat_descs *descs = &ioat_chan->descs[i]; @@ -382,8 +383,9 @@ ioat_alloc_ring(struct dma_chan *c, int order, gfp_t flags) for (idx = 0; idx < i; idx++) { descs = &ioat_chan->descs[idx]; - dma_free_coherent(to_dev(ioat_chan), SZ_2M, - descs->virt, descs->hw); + dma_free_coherent(to_dev(ioat_chan), + IOAT_CHUNK_SIZE, + descs->virt, descs->hw); descs->virt = NULL; descs->hw = 0; } @@ -404,7 +406,7 @@ ioat_alloc_ring(struct dma_chan *c, int order, gfp_t flags) for (idx = 0; idx < ioat_chan->desc_chunks; idx++) { dma_free_coherent(to_dev(ioat_chan), - SZ_2M, + IOAT_CHUNK_SIZE, ioat_chan->descs[idx].virt, ioat_chan->descs[idx].hw); ioat_chan->descs[idx].virt = NULL; |