From: Frank Li <Frank.Li@nxp.com>
To: gustavo.pimentel@synopsys.com, hongxing.zhu@nxp.com,
l.stach@pengutronix.de, linux-imx@nxp.com,
linux-pci@vger.kernel.org, dmaengine@vger.kernel.org,
fancer.lancer@gmail.com, lznuaa@gmail.com
Cc: vkoul@kernel.org, lorenzo.pieralisi@arm.com, robh@kernel.org,
kw@linux.com, bhelgaas@google.com, shawnguo@kernel.org,
manivannan.sadhasivam@linaro.org
Subject: [PATCH v4 4/8] dmaengine: dw-edma: rename wr(rd)_ch_cnt to ll_wr(rd)_cnt in struct dw_edma_chip
Date: Wed, 9 Mar 2022 15:12:00 -0600 [thread overview]
Message-ID: <20220309211204.26050-5-Frank.Li@nxp.com> (raw)
In-Reply-To: <20220309211204.26050-1-Frank.Li@nxp.com>
There are same name wr(rd)_ch_cnt in struct dw_edma. EDMA driver get
write(read) channel number from register, then save these into dw_edma.
Old wr(rd)_ch_cnt in dw_edma_chip actuall means how many link list memory
are avaiable in ll_region_wr(rd)[EDMA_MAX_WR_CH]. So rename it to
ll_wr(rd)_cnt to indicate actual usage.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
new patch at v4
drivers/dma/dw-edma/dw-edma-core.c | 4 ++--
drivers/dma/dw-edma/dw-edma-pcie.c | 12 ++++++------
include/linux/dma/edma.h | 8 ++++----
3 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c
index 1abf41d49f75b..66dc650577919 100644
--- a/drivers/dma/dw-edma/dw-edma-core.c
+++ b/drivers/dma/dw-edma/dw-edma-core.c
@@ -918,11 +918,11 @@ int dw_edma_probe(struct dw_edma_chip *chip)
raw_spin_lock_init(&dw->lock);
- dw->wr_ch_cnt = min_t(u16, chip->wr_ch_cnt,
+ dw->wr_ch_cnt = min_t(u16, chip->ll_wr_cnt,
dw_edma_v0_core_ch_count(dw, EDMA_DIR_WRITE));
dw->wr_ch_cnt = min_t(u16, dw->wr_ch_cnt, EDMA_MAX_WR_CH);
- dw->rd_ch_cnt = min_t(u16, chip->rd_ch_cnt,
+ dw->rd_ch_cnt = min_t(u16, chip->ll_rd_cnt,
dw_edma_v0_core_ch_count(dw, EDMA_DIR_READ));
dw->rd_ch_cnt = min_t(u16, dw->rd_ch_cnt, EDMA_MAX_RD_CH);
diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c
index ae42bad24dd5a..7732537f96086 100644
--- a/drivers/dma/dw-edma/dw-edma-pcie.c
+++ b/drivers/dma/dw-edma/dw-edma-pcie.c
@@ -230,14 +230,14 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
chip->nr_irqs = nr_irqs;
chip->ops = &dw_edma_pcie_core_ops;
- chip->wr_ch_cnt = vsec_data.wr_ch_cnt;
- chip->rd_ch_cnt = vsec_data.rd_ch_cnt;
+ chip->ll_wr_cnt = vsec_data.wr_ch_cnt;
+ chip->ll_rd_cnt = vsec_data.rd_ch_cnt;
chip->reg_base = pcim_iomap_table(pdev)[vsec_data.rg.bar];
if (!chip->reg_base)
return -ENOMEM;
- for (i = 0; i < chip->wr_ch_cnt; i++) {
+ for (i = 0; i < chip->ll_wr_cnt; 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];
@@ -262,7 +262,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
dt_region->sz = dt_block->sz;
}
- for (i = 0; i < chip->rd_ch_cnt; i++) {
+ for (i = 0; i < chip->ll_rd_cnt; 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];
@@ -302,7 +302,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
chip->reg_base);
- for (i = 0; i < chip->wr_ch_cnt; i++) {
+ for (i = 0; i < chip->ll_wr_cnt; i++) {
pci_dbg(pdev, "L. List:\tWRITE CH%.2u, BAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%p, p=%pa)\n",
i, vsec_data.ll_wr[i].bar,
vsec_data.ll_wr[i].off, chip->ll_region_wr[i].sz,
@@ -314,7 +314,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
chip->dt_region_wr[i].vaddr, &chip->dt_region_wr[i].paddr);
}
- for (i = 0; i < chip->rd_ch_cnt; i++) {
+ for (i = 0; i < chip->ll_rd_cnt; i++) {
pci_dbg(pdev, "L. List:\tREAD CH%.2u, BAR=%u, off=0x%.8lx, sz=0x%zx bytes, addr(v=%p, p=%pa)\n",
i, vsec_data.ll_rd[i].bar,
vsec_data.ll_rd[i].off, chip->ll_region_rd[i].sz,
diff --git a/include/linux/dma/edma.h b/include/linux/dma/edma.h
index e9ce652b88233..c2039246fc08c 100644
--- a/include/linux/dma/edma.h
+++ b/include/linux/dma/edma.h
@@ -40,8 +40,8 @@ enum dw_edma_map_format {
* @nr_irqs: total dma irq number
* @ops DMA channel to IRQ number mapping
* @reg_base DMA register base address
- * @wr_ch_cnt DMA write channel number
- * @rd_ch_cnt DMA read channel number
+ * @ll_wr_cnt DMA write link list number
+ * @ll_rd_cnt DMA read link list number
* @rg_region DMA register region
* @ll_region_wr DMA descriptor link list memory for write channel
* @ll_region_rd DMA descriptor link list memory for read channel
@@ -56,8 +56,8 @@ struct dw_edma_chip {
void __iomem *reg_base;
- u16 wr_ch_cnt;
- u16 rd_ch_cnt;
+ u16 ll_wr_cnt;
+ u16 ll_rd_cnt;
/* link list address */
struct dw_edma_region ll_region_wr[EDMA_MAX_WR_CH];
struct dw_edma_region ll_region_rd[EDMA_MAX_RD_CH];
--
2.24.0.rc1
next prev parent reply other threads:[~2022-03-09 21:12 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-09 21:11 [PATCH v4 0/8] Enable designware PCI EP EDMA locally Frank Li
2022-03-09 21:11 ` [PATCH v4 1/8] dmaengine: dw-edma: Detach the private data and chip info structures Frank Li
2022-03-10 12:50 ` Serge Semin
2022-03-10 20:20 ` Serge Semin
2022-03-10 20:29 ` Zhi Li
2022-03-11 11:03 ` Serge Semin
2022-03-11 15:29 ` Zhi Li
2022-03-12 19:56 ` Serge Semin
2022-03-12 19:54 ` Serge Semin
2022-03-09 21:11 ` [PATCH v4 2/8] dmaengine: dw-edma: remove unused field irq in struct dw_edma_chip Frank Li
2022-03-10 12:52 ` Serge Semin
2022-03-09 21:11 ` [PATCH v4 3/8] dmaengine: dw-edma: change rg_region to reg_base " Frank Li
2022-03-10 12:56 ` Serge Semin
2022-03-09 21:12 ` Frank Li [this message]
2022-03-10 12:37 ` [PATCH v4 4/8] dmaengine: dw-edma: rename wr(rd)_ch_cnt to ll_wr(rd)_cnt " Serge Semin
2022-03-10 16:26 ` Zhi Li
2022-03-10 16:51 ` Zhi Li
2022-03-10 18:45 ` Serge Semin
2022-03-09 21:12 ` [PATCH v4 5/8] dmaengine: dw-edma: Fix programming the source & dest addresses for ep Frank Li
2022-03-10 16:31 ` Serge Semin
2022-03-10 16:50 ` Zhi Li
2022-03-10 19:37 ` Serge Semin
2022-03-10 20:16 ` Zhi Li
2022-03-11 12:38 ` Serge Semin
2022-03-11 15:37 ` Zhi Li
2022-03-11 16:03 ` Zhi Li
2022-03-11 17:14 ` Serge Semin
2022-03-11 17:55 ` Manivannan Sadhasivam
2022-03-11 19:08 ` Serge Semin
2022-03-11 17:46 ` Manivannan Sadhasivam
2022-03-11 17:41 ` Manivannan Sadhasivam
2022-03-11 19:01 ` Serge Semin
2022-03-12 5:37 ` Manivannan Sadhasivam
2022-03-14 8:33 ` Serge Semin
2022-03-18 18:06 ` Manivannan Sadhasivam
2022-03-18 18:19 ` Serge Semin
2022-03-20 23:16 ` Serge Semin
2022-03-22 13:55 ` Zhi Li
2022-03-22 14:03 ` Serge Semin
2022-03-22 22:25 ` Serge Semin
2022-03-09 21:12 ` [PATCH v4 6/8] dmaengine: dw-edma: Don't rely on the deprecated "direction" member Frank Li
2022-03-10 17:29 ` Serge Semin
2022-03-10 17:41 ` Manivannan Sadhasivam
2022-03-10 17:52 ` Serge Semin
2022-03-11 17:58 ` Manivannan Sadhasivam
2022-03-09 21:12 ` [PATCH v4 7/8] dmaengine: dw-edma: add flags at struct dw_edma_chip Frank Li
2022-03-10 1:07 ` kernel test robot
2022-03-10 1:07 ` kernel test robot
2022-03-10 17:46 ` Serge Semin
2022-03-10 17:54 ` Zhi Li
2022-03-10 18:25 ` Serge Semin
2022-03-09 21:12 ` [PATCH v4 8/8] PCI: endpoint: functions/pci-epf-test: Support PCI controller DMA Frank Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220309211204.26050-5-Frank.Li@nxp.com \
--to=frank.li@nxp.com \
--cc=bhelgaas@google.com \
--cc=dmaengine@vger.kernel.org \
--cc=fancer.lancer@gmail.com \
--cc=gustavo.pimentel@synopsys.com \
--cc=hongxing.zhu@nxp.com \
--cc=kw@linux.com \
--cc=l.stach@pengutronix.de \
--cc=linux-imx@nxp.com \
--cc=linux-pci@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=lznuaa@gmail.com \
--cc=manivannan.sadhasivam@linaro.org \
--cc=robh@kernel.org \
--cc=shawnguo@kernel.org \
--cc=vkoul@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).