From: Wang Wenhu <wenhu.wang@vivo.com>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
oss@buserror.net, christophe.leroy@c-s.fr,
linuxppc-dev@lists.ozlabs.org
Cc: kernel@vivo.com, Wang Wenhu <wenhu.wang@vivo.com>
Subject: [PATCH v3,0/4] drivers: uio: new driver uio_fsl_85xx_cache_sram
Date: Thu, 16 Apr 2020 00:29:25 -0700 [thread overview]
Message-ID: <20200416072929.3489-1-wenhu.wang@vivo.com> (raw)
In-Reply-To: <20200415152442.122873-1-wenhu.wang@vivo.com>
This series add a new uio driver for freescale 85xx platforms to
access the Cache-Sram form user level. This is extremely helpful
for the user-space applications that require high performance memory
accesses.
It fixes the compile errors and warning of the hardware level drivers
and implements the uio driver in uio_fsl_85xx_cache_sram.c.
Changes since v1:
* Addressed comments from Greg K-H
* Moved kfree(info->name) into uio_info_free_internal()
Changes since v2:
* Drop the patch that modifies Kconfigs of arch/powerpc/platforms
and modified the sequence of patches:
01:dropped, 02->03, 03->02, 04->01, 05->04
* Addressed comments from Greg, Scott and Christophe
* Use "uiomem->internal_addr" as if condition for sram memory free,
and memset the uiomem entry
* Modified of_match_table make the driver apart from Cache-Sram HW info
which belong to the HW level driver fsl_85xx_cache_sram to match
* Use roundup_pow_of_two for align calc(really learned a lot from Christophe)
* Remove useless clear block of uiomem entries.
* Use UIO_INFO_VER micro for info->version, and define it as
"devicetree,pseudo", meaning this is pseudo device and probed from
device tree configuration
* Select FSL_85XX_CACHE_SRAM rather than depends on it
Wang Wenhu (4):
powerpc: sysdev: fix compile error for fsl_85xx_l2ctlr
powerpc: sysdev: fix compile error for fsl_85xx_cache_sram
powerpc: sysdev: fix compile warning for fsl_85xx_cache_sram
drivers: uio: new driver for fsl_85xx_cache_sram
arch/powerpc/sysdev/fsl_85xx_cache_sram.c | 3 +-
arch/powerpc/sysdev/fsl_85xx_l2ctlr.c | 1 +
drivers/uio/Kconfig | 9 ++
drivers/uio/Makefile | 1 +
drivers/uio/uio_fsl_85xx_cache_sram.c | 158 ++++++++++++++++++++++
5 files changed, 171 insertions(+), 1 deletion(-)
create mode 100644 drivers/uio/uio_fsl_85xx_cache_sram.c
--
2.17.1
next prev parent reply other threads:[~2020-04-16 8:09 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-15 12:33 [PATCH 0/5] drivers: uio: new driver uio_fsl_85xx_cache_sram Wang Wenhu
2020-04-15 12:33 ` [PATCH 1/5] powerpc: 85xx: make FSL_85XX_CACHE_SRAM configurable Wang Wenhu
2020-04-16 0:58 ` kbuild test robot
2020-04-15 12:33 ` [PATCH 2/5] powerpc: sysdev: fix compile error for fsl_85xx_cache_sram Wang Wenhu
2020-04-15 12:33 ` [PATCH 3/5] powerpc: sysdev: fix compile warning " Wang Wenhu
2020-04-15 12:33 ` [PATCH 4/5] powerpc: sysdev: fix compile error for fsl_85xx_l2ctlr Wang Wenhu
2020-04-15 12:33 ` [PATCH 5/5] drivers: uio: new driver for fsl_85xx_cache_sram Wang Wenhu
2020-04-15 12:49 ` Greg KH
2020-04-15 14:07 ` [PATCH 5/5] drivers: uio: new driver for fsl_85xx_cache_sram>On Wed, Apr 15, 2020 at 05:33:46AM -0700, Wang Wenhu wrote: Wang Wenhu
2020-04-15 15:24 ` [PATCH v2,0/5] drivers: uio: new driver uio_fsl_85xx_cache_sram Wang Wenhu
2020-04-15 15:24 ` [PATCH v2,1/5] powerpc: 85xx: make FSL_85XX_CACHE_SRAM configurable Wang Wenhu
2020-04-15 16:26 ` Christophe Leroy
2020-04-15 16:29 ` Christophe Leroy
2020-04-15 18:53 ` Scott Wood
2020-04-16 4:11 ` Wang Wenhu
2020-04-15 15:24 ` [PATCH v2,2/5] powerpc: sysdev: fix compile error for fsl_85xx_cache_sram Wang Wenhu
2020-04-15 15:24 ` [PATCH v2,3/5] powerpc: sysdev: fix compile warning " Wang Wenhu
2020-04-15 15:24 ` [PATCH v2,4/5] powerpc: sysdev: fix compile error for fsl_85xx_l2ctlr Wang Wenhu
2020-04-15 15:24 ` [PATCH v2,5/5] drivers: uio: new driver for fsl_85xx_cache_sram Wang Wenhu
2020-04-15 16:52 ` Christophe Leroy
2020-04-15 19:27 ` Scott Wood
2020-04-16 6:30 ` Greg KH
2020-04-16 19:36 ` Scott Wood
2020-04-16 5:22 ` Wang Wenhu
2020-04-16 6:02 ` Christophe Leroy
2020-04-15 19:26 ` Scott Wood
2020-04-16 6:30 ` Greg KH
2020-04-16 19:40 ` Scott Wood
2020-04-16 7:29 ` Wang Wenhu [this message]
2020-04-16 7:29 ` [PATCH v3,1/4] powerpc: sysdev: fix compile error for fsl_85xx_l2ctlr Wang Wenhu
2020-04-16 7:29 ` [PATCH v3,2/4] powerpc: sysdev: fix compile error for fsl_85xx_cache_sram Wang Wenhu
2020-04-16 7:29 ` [PATCH v3,3/4] powerpc: sysdev: fix compile warning " Wang Wenhu
2020-04-16 7:29 ` [PATCH v3,4/4] drivers: uio: new driver " Wang Wenhu
2020-04-16 7:41 ` [PATCH v3,0/4] drivers: uio: new driver uio_fsl_85xx_cache_sram Wang Wenhu
2020-04-16 7:41 ` [PATCH v3,1/4] powerpc: sysdev: fix compile error for fsl_85xx_l2ctlr Wang Wenhu
2020-04-16 7:41 ` [PATCH v3,2/4] powerpc: sysdev: fix compile error for fsl_85xx_cache_sram Wang Wenhu
2020-04-16 7:41 ` [PATCH v3,3/4] powerpc: sysdev: fix compile warning " Wang Wenhu
2020-04-16 7:41 ` [PATCH v3,4/4] drivers: uio: new driver " Wang Wenhu
2020-04-16 7:49 ` [PATCH v3,0/4] drivers: uio: new driver uio_fsl_85xx_cache_sram Wang Wenhu
2020-04-16 7:49 ` [PATCH v3,1/4] powerpc: sysdev: fix compile error for fsl_85xx_l2ctlr Wang Wenhu
2020-04-16 7:49 ` [PATCH v3,2/4] powerpc: sysdev: fix compile error for fsl_85xx_cache_sram Wang Wenhu
2020-04-16 7:49 ` [PATCH v3,3/4] powerpc: sysdev: fix compile warning " Wang Wenhu
2020-04-16 7:49 ` [PATCH v3,4/4] drivers: uio: new driver " Wang Wenhu
2020-04-16 9:29 ` Re:[PATCH v3,0/4] drivers: uio: new driver uio_fsl_85xx_cache_sram 王文虎
2020-04-16 10:36 ` [PATCH " Christophe Leroy
2020-04-16 11:14 ` 王文虎
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