github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 12:44:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

dmaengine: dw-edma-pcie: Track non-LL mode in DMA data

Browse Source 
The dw-edma-pcie driver copies static template data into a mutable
dw_edma_pcie_data instance before applying capability-derived updates.
Keep the derived non-LL mode in that copy as well, instead of only
tracking it in a local variable in dw_edma_pcie_probe().

This prepares for keeping capability parsing behind match data without a
separate non-LL output parameter.

No functional change intended.

Suggested-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Link: https://patch.msgid.link/20260721062815.4117887-7-den@valinux.co.jp
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Koichiro Den 2026-07-21 15:28:07 +09:00 committed by Vinod Koul
parent b24a5e9db6
commit 1415d6d1f1
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/dma/dw-edma/dw-edma-pcie.c
View File

@ -73,6 +73,7 @@ struct dw_edma_pcie_data {
u16 wr_ch_cnt;
u16 rd_ch_cnt;
u64 devmem_phys_off;
bool cfg_non_ll;
};
static const struct dw_edma_pcie_data snps_edda_data = {
@ -326,7 +327,6 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
struct dw_edma_chip *chip;
int err, nr_irqs;
int i, mask;
bool non_ll = false;
if (!pdata)
return -ENODEV;
@ -361,14 +361,14 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
* the HDMA IP.
*/
if (vsec_data->devmem_phys_off == DW_PCIE_XILINX_MDB_INVALID_ADDR)
non_ll = true;
vsec_data->cfg_non_ll = true;
/*
* Configure the channel LL and data blocks if number of
* channels enabled in VSEC capability are more than the
* channels configured in xilinx_mdb_data.
*/
if (!non_ll)
if (!vsec_data->cfg_non_ll)
dw_edma_set_chan_region_offset(vsec_data, BAR_2, 0,
DW_PCIE_XILINX_MDB_LL_OFF_GAP,
DW_PCIE_XILINX_MDB_LL_SIZE,
@ -421,7 +421,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
chip->mf = vsec_data->mf;
chip->nr_irqs = nr_irqs;
chip->ops = &dw_edma_pcie_plat_ops;
chip->cfg_non_ll = non_ll;
chip->cfg_non_ll = vsec_data->cfg_non_ll;
chip->ll_wr_cnt = vsec_data->wr_ch_cnt;
chip->ll_rd_cnt = vsec_data->rd_ch_cnt;
@ -430,7 +430,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
if (!chip->reg_base)
return -ENOMEM;
for (i = 0; i < chip->ll_wr_cnt && !non_ll; i++) {
for (i = 0; i < chip->ll_wr_cnt && !vsec_data->cfg_non_ll; i++) {
struct dw_edma_region *ll_region = &chip->ll_region_wr[i];
struct dw_edma_region *dt_region = &chip->dt_region_wr[i];
struct dw_edma_block *ll_block = &vsec_data->ll_wr[i];
@ -457,7 +457,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
dt_region->sz = dt_block->sz;
}
for (i = 0; i < chip->ll_rd_cnt && !non_ll; i++) {
for (i = 0; i < chip->ll_rd_cnt && !vsec_data->cfg_non_ll; i++) {
struct dw_edma_region *ll_region = &chip->ll_region_rd[i];
struct dw_edma_region *dt_region = &chip->dt_region_rd[i];
struct dw_edma_block *ll_block = &vsec_data->ll_rd[i];