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| author |   Ohad Sharabi <osharabi@habana.ai> | 2022-03-24 16:34:49 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-22 21:01:18 +0200 |
| commit | ab4ea5872842766b0155b2517db61a4ae99d98e0 (patch) | |
| tree | 40c6c06043e36b7ed25b4afff96aaff28bf8cb53 /drivers/misc/habanalabs/goya/goya.c | |
| parent | habanalabs/gaudi: use lower_32_bits() for casting (diff) | |
| download | linux-dev-ab4ea5872842766b0155b2517db61a4ae99d98e0.tar.xz linux-dev-ab4ea5872842766b0155b2517db61a4ae99d98e0.zip | |
habanalabs: use for_each_sgtable_dma_sg for dma sgt
Instead of using for_each_sg when iterating sgt that contains dma
entries, use the more proper for_each_sgtable_dma_sg macro.
In addition, both Goya and Gaudi have the exact same implementation
of the asic function that encapsulate the usage of this macro, so
it is better to move that implementation to the common code.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/habanalabs/goya/goya.c')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 41 |
1 files changed, 5 insertions, 36 deletions
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 48235795a55d..75736ccdfe4b 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -3311,35 +3311,6 @@ void goya_cpu_accessible_dma_pool_free(struct hl_device *hdev, size_t size, hl_fw_cpu_accessible_dma_pool_free(hdev, size, vaddr); } -static int goya_dma_map_sg(struct hl_device *hdev, struct scatterlist *sgl, - int nents, enum dma_data_direction dir) -{ - struct scatterlist *sg; - int i; - - if (!dma_map_sg(&hdev->pdev->dev, sgl, nents, dir)) - return -ENOMEM; - - /* Shift to the device's base physical address of host memory */ - for_each_sg(sgl, sg, nents, i) - sg->dma_address += HOST_PHYS_BASE; - - return 0; -} - -static void goya_dma_unmap_sg(struct hl_device *hdev, struct scatterlist *sgl, - int nents, enum dma_data_direction dir) -{ - struct scatterlist *sg; - int i; - - /* Cancel the device's base physical address of host memory */ - for_each_sg(sgl, sg, nents, i) - sg->dma_address -= HOST_PHYS_BASE; - - dma_unmap_sg(&hdev->pdev->dev, sgl, nents, dir); -} - u32 goya_get_dma_desc_list_size(struct hl_device *hdev, struct sg_table *sgt) { struct scatterlist *sg, *sg_next_iter; @@ -3349,8 +3320,7 @@ u32 goya_get_dma_desc_list_size(struct hl_device *hdev, struct sg_table *sgt) dma_desc_cnt = 0; - for_each_sg(sgt->sgl, sg, sgt->nents, count) { - + for_each_sgtable_dma_sg(sgt, sg, count) { len = sg_dma_len(sg); addr = sg_dma_address(sg); @@ -3404,8 +3374,7 @@ static int goya_pin_memory_before_cs(struct hl_device *hdev, list_add_tail(&userptr->job_node, parser->job_userptr_list); - rc = hdev->asic_funcs->asic_dma_map_sg(hdev, userptr->sgt->sgl, - userptr->sgt->nents, dir); + rc = hdev->asic_funcs->asic_dma_map_sgtable(hdev, userptr->sgt, dir); if (rc) { dev_err(hdev->dev, "failed to map sgt with DMA region\n"); goto unpin_memory; @@ -3869,7 +3838,7 @@ static int goya_patch_dma_packet(struct hl_device *hdev, sgt = userptr->sgt; dma_desc_cnt = 0; - for_each_sg(sgt->sgl, sg, sgt->nents, count) { + for_each_sgtable_dma_sg(sgt, sg, count) { len = sg_dma_len(sg); dma_addr = sg_dma_address(sg); @@ -5497,9 +5466,9 @@ static const struct hl_asic_funcs goya_funcs = { .asic_dma_pool_free = goya_dma_pool_free, .cpu_accessible_dma_pool_alloc = goya_cpu_accessible_dma_pool_alloc, .cpu_accessible_dma_pool_free = goya_cpu_accessible_dma_pool_free, - .hl_dma_unmap_sg = goya_dma_unmap_sg, + .hl_dma_unmap_sgtable = hl_dma_unmap_sgtable, .cs_parser = goya_cs_parser, - .asic_dma_map_sg = goya_dma_map_sg, + .asic_dma_map_sgtable = hl_dma_map_sgtable, .get_dma_desc_list_size = goya_get_dma_desc_list_size, .add_end_of_cb_packets = goya_add_end_of_cb_packets, .update_eq_ci = goya_update_eq_ci, |