From: Baolin Wang <baolin.wang7@gmail.com>
To: axboe@kernel.dk, paolo.valente@linaro.org,
ulf.hansson@linaro.org, adrian.hunter@intel.com
Cc: ming.lei@redhat.com, arnd@arndb.de, linus.walleij@linaro.org,
baolin.wang7@gmail.com, orsonzhai@gmail.com,
zhang.lyra@gmail.com, linux-mmc@vger.kernel.org,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RESEND RFC PATCH 6/8] mmc: host: sdhci: Remove redundant sg_count member of struct sdhci_host
Date: Mon, 16 Mar 2020 18:01:23 +0800 [thread overview]
Message-ID: <537851f05fb3411859ff0196433635dbaf8b59aa.1584350380.git.baolin.wang7@gmail.com> (raw)
In-Reply-To: <cover.1584350380.git.baolin.wang7@gmail.com>
In-Reply-To: <cover.1584350380.git.baolin.wang7@gmail.com>
The mmc_data structure has a member to save the mapped sg count, so
no need introduce a redundant sg_count of struct sdhci_host, remove it.
This is also a preparation patch to support ADMA3 transfer mode.
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
---
drivers/mmc/host/sdhci.c | 12 +++++-------
drivers/mmc/host/sdhci.h | 2 --
2 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 4de0f48..6d6f450 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -708,7 +708,7 @@ static void sdhci_adma_mark_end(void *desc)
}
static void sdhci_adma_table_pre(struct sdhci_host *host,
- struct mmc_data *data, int sg_count)
+ struct mmc_data *data)
{
struct scatterlist *sg;
unsigned long flags;
@@ -722,14 +722,12 @@ static void sdhci_adma_table_pre(struct sdhci_host *host,
* We currently guess that it is LE.
*/
- host->sg_count = sg_count;
-
desc = host->adma_table;
align = host->align_buffer;
align_addr = host->align_addr;
- for_each_sg(data->sg, sg, host->sg_count, i) {
+ for_each_sg(data->sg, sg, data->sg_count, i) {
addr = sg_dma_address(sg);
len = sg_dma_len(sg);
@@ -801,7 +799,7 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
bool has_unaligned = false;
/* Do a quick scan of the SG list for any unaligned mappings */
- for_each_sg(data->sg, sg, host->sg_count, i)
+ for_each_sg(data->sg, sg, data->sg_count, i)
if (sg_dma_address(sg) & SDHCI_ADMA2_MASK) {
has_unaligned = true;
break;
@@ -813,7 +811,7 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
align = host->align_buffer;
- for_each_sg(data->sg, sg, host->sg_count, i) {
+ for_each_sg(data->sg, sg, data->sg_count, i) {
if (sg_dma_address(sg) & SDHCI_ADMA2_MASK) {
size = SDHCI_ADMA2_ALIGN -
(sg_dma_address(sg) & SDHCI_ADMA2_MASK);
@@ -1133,7 +1131,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
WARN_ON(1);
host->flags &= ~SDHCI_REQ_USE_DMA;
} else if (host->flags & SDHCI_USE_ADMA) {
- sdhci_adma_table_pre(host, data, sg_cnt);
+ sdhci_adma_table_pre(host, data);
sdhci_set_adma_addr(host, host->adma_addr);
} else {
WARN_ON(sg_cnt != 1);
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 96aed99..f33830b 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -589,8 +589,6 @@ struct sdhci_host {
struct sg_mapping_iter sg_miter; /* SG state for PIO */
unsigned int blocks; /* remaining PIO blocks */
- int sg_count; /* Mapped sg entries */
-
void *adma_table; /* ADMA descriptor table */
void *align_buffer; /* Bounce buffer */
void *integr_table; /* ADMA3 intergrate descriptor table */
--
1.9.1
next prev parent reply other threads:[~2020-03-16 10:02 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-16 10:01 [RESEND RFC PATCH 0/8] Add MMC packed request support Baolin Wang
2020-03-16 10:01 ` [RESEND RFC PATCH 1/8] block: Change the dispatch_request() API to support batch requests Baolin Wang
2020-03-16 10:01 ` [RESEND RFC PATCH 2/8] block: Allow sending a batch of requests from the scheduler to hardware Baolin Wang
2020-03-18 10:01 ` Ming Lei
2020-03-18 10:26 ` Baolin Wang
2020-03-20 10:27 ` Baolin Wang
2020-03-23 3:44 ` Ming Lei
2020-03-23 5:36 ` Baolin Wang
2020-03-23 7:26 ` Ming Lei
2020-03-23 8:22 ` Baolin Wang
2020-03-23 8:28 ` Ming Lei
2020-03-23 9:13 ` Baolin Wang
2020-03-23 9:58 ` Ming Lei
2020-03-24 8:29 ` Baolin Wang
2020-03-27 8:30 ` Baolin Wang
2020-04-22 9:21 ` Baolin Wang
2020-04-22 9:25 ` Ming Lei
2020-04-22 9:28 ` Baolin Wang
2020-03-16 10:01 ` [RESEND RFC PATCH 3/8] mmc: Add MMC packed request support for MMC software queue Baolin Wang
2020-03-16 10:01 ` [RESEND RFC PATCH 4/8] mmc: host: sdhci: Introduce ADMA3 transfer mode Baolin Wang
2020-03-16 10:01 ` [RESEND RFC PATCH 5/8] mmc: host: sdhci: Factor out the command configuration Baolin Wang
2020-03-16 10:01 ` Baolin Wang [this message]
2020-03-16 10:01 ` [RESEND RFC PATCH 7/8] mmc: host: sdhci: Add MMC packed request support Baolin Wang
2020-03-16 10:01 ` [RESEND RFC PATCH 8/8] mmc: host: sdhci-sprd: " Baolin Wang
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