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 8/8] mmc: host: sdhci-sprd: Add MMC packed request support
Date: Mon, 16 Mar 2020 18:01:25 +0800 [thread overview]
Message-ID: <060083eadc085cc93149475f3259cf2eb9d81d83.1584350380.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>
Enable the ADMA3 transfer mode as well as adding packed operations
to support MMC packed requests to improve IO performance.
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
---
drivers/mmc/host/sdhci-sprd.c | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index 49afe1c..daa38ed 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -390,6 +390,12 @@ static void sdhci_sprd_request_done(struct sdhci_host *host,
mmc_request_done(host->mmc, mrq);
}
+static void sdhci_sprd_packed_request_done(struct sdhci_host *host,
+ struct mmc_packed_request *prq)
+{
+ mmc_hsq_finalize_packed_request(host->mmc, prq);
+}
+
static struct sdhci_ops sdhci_sprd_ops = {
.read_l = sdhci_sprd_readl,
.write_l = sdhci_sprd_writel,
@@ -404,6 +410,7 @@ static void sdhci_sprd_request_done(struct sdhci_host *host,
.get_max_timeout_count = sdhci_sprd_get_max_timeout_count,
.get_ro = sdhci_sprd_get_ro,
.request_done = sdhci_sprd_request_done,
+ .packed_request_done = sdhci_sprd_packed_request_done,
};
static void sdhci_sprd_request(struct mmc_host *mmc, struct mmc_request *mrq)
@@ -546,10 +553,18 @@ static void sdhci_sprd_phy_param_parse(struct sdhci_sprd_host *sprd_host,
SDHCI_QUIRK_MISSING_CAPS,
.quirks2 = SDHCI_QUIRK2_BROKEN_HS200 |
SDHCI_QUIRK2_USE_32BIT_BLK_CNT |
- SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+ SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+ SDHCI_QUIRK2_USE_ADMA3_SUPPORT,
.ops = &sdhci_sprd_ops,
};
+static const struct hsq_packed_ops packed_ops = {
+ .packed_algo = mmc_hsq_packed_algo_rw,
+ .prepare_hardware = sdhci_prepare_packed,
+ .unprepare_hardware = sdhci_unprepare_packed,
+ .packed_request = sdhci_packed_request,
+};
+
static int sdhci_sprd_probe(struct platform_device *pdev)
{
struct sdhci_host *host;
@@ -676,7 +691,18 @@ static int sdhci_sprd_probe(struct platform_device *pdev)
goto err_cleanup_host;
}
- ret = mmc_hsq_init(hsq, host->mmc, NULL, 0);
+ /*
+ * If the host controller can support ADMA3 mode, we can enable the
+ * packed request mode to improve the read/write performance.
+ *
+ * Considering the maximum ADMA3 entries (default is 16) and the request
+ * latency, we set the default maximum packed requests number is 8.
+ */
+ if (host->flags & SDHCI_USE_ADMA3)
+ ret = mmc_hsq_init(hsq, host->mmc, &packed_ops,
+ SDHCI_MAX_ADMA3_ENTRIES / 2);
+ else
+ ret = mmc_hsq_init(hsq, host->mmc, NULL, 0);
if (ret)
goto err_cleanup_host;
--
1.9.1
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 ` [RESEND RFC PATCH 6/8] mmc: host: sdhci: Remove redundant sg_count member of struct sdhci_host Baolin Wang
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 ` Baolin Wang [this message]
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=060083eadc085cc93149475f3259cf2eb9d81d83.1584350380.git.baolin.wang7@gmail.com \
--to=baolin.wang7@gmail.com \
--cc=adrian.hunter@intel.com \
--cc=arnd@arndb.de \
--cc=axboe@kernel.dk \
--cc=linus.walleij@linaro.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=ming.lei@redhat.com \
--cc=orsonzhai@gmail.com \
--cc=paolo.valente@linaro.org \
--cc=ulf.hansson@linaro.org \
--cc=zhang.lyra@gmail.com \
/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).