From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yusuke Goda Date: Tue, 20 Jul 2010 06:32:44 +0000 Subject: Re: [PATCH] drivers/mfd/sh_mobile_sdhi.c: uses optimized block Message-Id: <4C45430C.4060501@renesas.com> List-Id: References: <4C3F0433.8010005@emtrion.de> In-Reply-To: <4C3F0433.8010005@emtrion.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: linux-sh@vger.kernel.org Hi Markus I tried the test of this patch. However, I was not able to apply a patch. Is this patch a patch for which kernel(commit number)? cheers, Goda Markus Pietrek wrote: > On the SH7723, these settings improve PIO reads from 4MB/s to 13MB/s and = writes from 1MB/s to 4.1MB/s >=20 > Signed-off-by: Markus Pietrek > --- > drivers/mfd/sh_mobile_sdhi.c | 9 +++++++++ > drivers/mmc/host/tmio_mmc.c | 14 ++++++++++++++ > include/linux/mfd/tmio.h | 9 +++++++++ > 3 files changed, 32 insertions(+), 0 deletions(-) >=20 > diff --git a/drivers/mfd/sh_mobile_sdhi.c b/drivers/mfd/sh_mobile_sdhi.c > index cd16459..0bd80a3 100644 > --- a/drivers/mfd/sh_mobile_sdhi.c > +++ b/drivers/mfd/sh_mobile_sdhi.c > @@ -107,6 +107,15 @@ static int __init sh_mobile_sdhi_probe(struct platfo= rm_device *pdev) > mmc_data->hclk =3D clk_get_rate(priv->clk); > mmc_data->set_pwr =3D sh_mobile_sdhi_set_pwr; > mmc_data->capabilities =3D MMC_CAP_MMC_HIGHSPEED; > + > + /* values are taken from the firmware based sh_sdhi.c driver */ > + mmc_data->max_hw_segs =3D 32; > + mmc_data->max_phys_segs =3D 32; > + mmc_data->max_blk_count =3D 65535; /* actually it's 65536, but th= e value 65536 is handled differently and we want to keep the code simple */ > + mmc_data->max_req_size =3D 131072; > + mmc_data->max_seg_size =3D mmc_data->max_req_size; > + mmc_data->max_blk_size =3D mmc_data->max_blk_size; > + > if (p) { > mmc_data->flags =3D p->tmio_flags; > mmc_data->ocr_mask =3D p->tmio_ocr_mask; > diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c > index ee7d0a5..cdb3a6a 100644 > --- a/drivers/mmc/host/tmio_mmc.c > +++ b/drivers/mmc/host/tmio_mmc.c > @@ -847,6 +847,20 @@ static int __devinit tmio_mmc_probe(struct platform_= device *dev) > mmc->caps |=3D pdata->capabilities; > mmc->f_max =3D pdata->hclk; > mmc->f_min =3D mmc->f_max / 512; > + > + if (pdata->max_hw_segs) > + mmc->max_hw_segs =3D pdata->max_hw_segs; > + if (pdata->max_phys_segs) > + mmc->max_phys_segs =3D pdata->max_phys_segs; > + if (pdata->max_seg_size) > + mmc->max_seg_size =3D pdata->max_seg_size; > + if (pdata->max_req_size) > + mmc->max_req_size =3D pdata->max_req_size; > + if (pdata->max_blk_size) > + mmc->max_blk_size =3D pdata->max_blk_size; > + if (pdata->max_blk_count) > + mmc->max_blk_count =3D pdata->max_blk_count; > + > if (pdata->ocr_mask) > mmc->ocr_avail =3D pdata->ocr_mask; > else > diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h > index f07425b..4eb7358 100644 > --- a/include/linux/mfd/tmio.h > +++ b/include/linux/mfd/tmio.h > @@ -71,6 +71,15 @@ struct tmio_mmc_data { > unsigned long capabilities; > unsigned long flags; > u32 ocr_mask; /* available volt= ages */ > + > + /* overrides for "struct mmc_host" variables */ > + unsigned int max_seg_size; > + unsigned short max_hw_segs; > + unsigned short max_phys_segs; > + unsigned int max_req_size; > + unsigned int max_blk_size; > + unsigned int max_blk_count; > + > struct tmio_mmc_dma *dma; > void (*set_pwr)(struct platform_device *host, int state); > void (*set_clk_div)(struct platform_device *host, int state); > -- > 1.7.0.4 >=20 >=20 > _____________________________________ >=20 > Amtsgericht Mannheim > HRB 110 300 > Gesch=E4ftsf=FChrer: Dieter Baur, Ramona Maurer > _____________________________________ >=20 > Important Note: > - This e-mail may contain trade secrets or privileged, undisclosed or oth= erwise confidential information. > - If you have received this e-mail in error, you are hereby notified that= any review, copying or distribution of it is strictly prohibited. > - Please inform us immediately and destroy the original transmittal. >=20 > Thank you for your cooperation. > -- > To unsubscribe from this list: send the line "unsubscribe linux-sh" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20