Re: [PATCH 1/6] perf: Add new type PERF_TYPE_PROBE

On Sat, Nov 25, 2017 at 05:59:54PM -0800, Alexei Starovoitov wrote: > If we were poking into 'struct perf_event_attr __user *uptr' > directly like get|put_user(.., >config) > then 32-bit user space with 4-byte aligned u64s would cause > 64-bit kernel to trap on archs like sparc. But surely archs

Re: [PATCH 1/6] perf: Add new type PERF_TYPE_PROBE

On Sat, Nov 25, 2017 at 05:59:54PM -0800, Alexei Starovoitov wrote: > If we were poking into 'struct perf_event_attr __user *uptr' > directly like get|put_user(.., >config) > then 32-bit user space with 4-byte aligned u64s would cause > 64-bit kernel to trap on archs like sparc. But surely archs

Re: [PATCH] input: pegasus_notetaker: add license information

On Sun, Nov 26, 2017 at 12:28:49PM +0100, Philippe Ombredanne wrote: > Greg, Martin: > > On Sun, Nov 26, 2017 at 9:59 AM, Greg Kroah-Hartman > wrote: > > On Sat, Nov 25, 2017 at 04:42:59PM -0800, Dmitry Torokhov wrote: > >> Hi Martin, > >> > >> On Sat, Nov 18, 2017 at

Re: [PATCH] input: pegasus_notetaker: add license information

On Sun, Nov 26, 2017 at 12:28:49PM +0100, Philippe Ombredanne wrote: > Greg, Martin: > > On Sun, Nov 26, 2017 at 9:59 AM, Greg Kroah-Hartman > wrote: > > On Sat, Nov 25, 2017 at 04:42:59PM -0800, Dmitry Torokhov wrote: > >> Hi Martin, > >> > >> On Sat, Nov 18, 2017 at 09:45:18AM +0100, Martin

[PATCH 1/1] timecounter: Make cyclecounter struct part of timecounter struct

There is no real need for the users of timecounters to define cyclecounter and timecounter variables separately. Since timecounter will always be based on cyclecounter, have cyclecounter struct as member of timecounter struct. Suggested-by: Chris Wilson Signed-off-by:

[PATCH 1/1] timecounter: Make cyclecounter struct part of timecounter struct

There is no real need for the users of timecounters to define cyclecounter and timecounter variables separately. Since timecounter will always be based on cyclecounter, have cyclecounter struct as member of timecounter struct. Suggested-by: Chris Wilson Signed-off-by: Sagar Arun Kamble Cc: John

Re: [PATCH v2] input: pegasus_notetaker: add license information

On Mon, Nov 27, 2017 at 08:44:01AM +0100, Martin Kepplinger wrote: > This adds an SPDX license identifier to this driver I wrote some time back. > > Signed-off-by: Martin Kepplinger > --- > > Thanks for the feedback. GPL2+ was what I had in mind. My bad. And as I > already

Re: [PATCH v2] input: pegasus_notetaker: add license information

On Mon, Nov 27, 2017 at 08:44:01AM +0100, Martin Kepplinger wrote: > This adds an SPDX license identifier to this driver I wrote some time back. > > Signed-off-by: Martin Kepplinger > --- > > Thanks for the feedback. GPL2+ was what I had in mind. My bad. And as I > already see a lot of SPDX

[lkp-robot] [x86/mm/kasan] d17a1d97dc: WARNING:at_lib/stackdepot.c:#depot_save_stack

FYI, we noticed the following commit (built with gcc-7): commit: d17a1d97dc208d664c91cc387ffb752c7f85dc61 ("x86/mm/kasan: don't use vmemmap_populate() to initialize shadow") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: trinity with following parameters:

[lkp-robot] [x86/mm/kasan] d17a1d97dc: WARNING:at_lib/stackdepot.c:#depot_save_stack

FYI, we noticed the following commit (built with gcc-7): commit: d17a1d97dc208d664c91cc387ffb752c7f85dc61 ("x86/mm/kasan: don't use vmemmap_populate() to initialize shadow") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: trinity with following parameters:

[PATCH] x86/mm/kmmio: Fix mmiotrace for page unaligned addresses

If something calls ioremap with an address not aligned to PAGE_SIZE, the returned address might be not aligned as well. This led to a probe registered on exactly the returned address, but the entire page was armed for mmiotracing. On calling iounmap the address passed to unregister_kmmio_probe

[PATCH] x86/mm/kmmio: Fix mmiotrace for page unaligned addresses

If something calls ioremap with an address not aligned to PAGE_SIZE, the returned address might be not aligned as well. This led to a probe registered on exactly the returned address, but the entire page was armed for mmiotracing. On calling iounmap the address passed to unregister_kmmio_probe

[RFC PATCH 2/3] net: macb: Tie-off unused RX queues

From: "Edgar E. Iglesias" Currently, we only use the first receive queue and leave the remaining DMA descriptor pointers pointing at 0. Disable unused queues by connecting them to a looped descriptor chain without free slots. Signed-off-by: Edgar E. Iglesias

[RFC PATCH 2/3] net: macb: Tie-off unused RX queues

From: "Edgar E. Iglesias" Currently, we only use the first receive queue and leave the remaining DMA descriptor pointers pointing at 0. Disable unused queues by connecting them to a looped descriptor chain without free slots. Signed-off-by: Edgar E. Iglesias Signed-off-by: Harini Katakam

Re: [PATCH] mm:Add watermark slope for high mark

Hi Peter, Thank you for the patch! Yet something to improve: [auto build test ERROR on mmotm/master] [also build test ERROR on v4.15-rc1 next-20171127] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

Re: [PATCH] mm:Add watermark slope for high mark

Hi Peter, Thank you for the patch! Yet something to improve: [auto build test ERROR on mmotm/master] [also build test ERROR on v4.15-rc1 next-20171127] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

[PATCH v2] input: pegasus_notetaker: add license information

This adds an SPDX license identifier to this driver I wrote some time back. Signed-off-by: Martin Kepplinger --- Thanks for the feedback. GPL2+ was what I had in mind. My bad. And as I already see a lot of SPDX tags using /**/ comments, I'll use that too. I think if it is

[PATCH v2] input: pegasus_notetaker: add license information

This adds an SPDX license identifier to this driver I wrote some time back. Signed-off-by: Martin Kepplinger --- Thanks for the feedback. GPL2+ was what I had in mind. My bad. And as I already see a lot of SPDX tags using /**/ comments, I'll use that too. I think if it is hand-written, it

[RFC PATCH 1/3] net: macb: Add RBQP to the macb queues

From: "Edgar E. Iglesias" Add RX queue pointer to macb queues to make it accessible for the multiple queues available. Currently the first RX queue is used. Signed-off-by: Edgar E. Iglesias Signed-off-by: Harini Katakam

[RFC PATCH 3/3] net: macb: Handle HRESP error

From: Harini Katakam Handle HRESP error by doing a SW reset of RX and TX and re-initializing the descriptors, RX and TX queue pointers. Signed-off-by: Harini Katakam Signed-off-by: Michal Simek ---

[RFC PATCH 1/3] net: macb: Add RBQP to the macb queues

From: "Edgar E. Iglesias" Add RX queue pointer to macb queues to make it accessible for the multiple queues available. Currently the first RX queue is used. Signed-off-by: Edgar E. Iglesias Signed-off-by: Harini Katakam Signed-off-by: Michal Simek --- drivers/net/ethernet/cadence/macb.h

[RFC PATCH 3/3] net: macb: Handle HRESP error

From: Harini Katakam Handle HRESP error by doing a SW reset of RX and TX and re-initializing the descriptors, RX and TX queue pointers. Signed-off-by: Harini Katakam Signed-off-by: Michal Simek --- drivers/net/ethernet/cadence/macb.h | 2 + drivers/net/ethernet/cadence/macb_main.c | 65

[RFC PATCH 0/3] Miscellaneous fixes in macb driver

This series fixes the following: -> Ties off unused RX queues -> Handles RX HRESP error Edgar E. Iglesias (2): net: macb: Add RBQP to the macb queues net: macb: Tie-off unused RX queues Harini Katakam (1): net: macb: Handle HRESP error drivers/net/ethernet/cadence/macb.h | 5 ++

[RFC PATCH 0/3] Miscellaneous fixes in macb driver

This series fixes the following: -> Ties off unused RX queues -> Handles RX HRESP error Edgar E. Iglesias (2): net: macb: Add RBQP to the macb queues net: macb: Tie-off unused RX queues Harini Katakam (1): net: macb: Handle HRESP error drivers/net/ethernet/cadence/macb.h | 5 ++

Re: [RFC PATCH 1/2] net: macb: Add RBQP to the macb queues

Hi, Please ignore this series. I'm sending another updated one. Sorry for the inconvenience. Regards, Harini On Mon, Nov 27, 2017 at 12:33 PM, Harini Katakam wrote: > From: "Edgar E. Iglesias" > > Add RX queue pointer to macb queues to

Re: [RFC PATCH 1/2] net: macb: Add RBQP to the macb queues

Hi, Please ignore this series. I'm sending another updated one. Sorry for the inconvenience. Regards, Harini On Mon, Nov 27, 2017 at 12:33 PM, Harini Katakam wrote: > From: "Edgar E. Iglesias" > > Add RX queue pointer to macb queues to make it accessible for the > multiple queues available.

[PATCH v7,2/2] misc: rtsx: Add support for RTS5260

From: Rui Feng Add support for new chip rts5260. In order to support rts5260, the definitions of some internal registers and workflow have to be modified and are different from its predecessors and OCP function is added for RTS5260. So we need this patch to ensure

[PATCH v7,2/2] misc: rtsx: Add support for RTS5260

From: Rui Feng Add support for new chip rts5260. In order to support rts5260, the definitions of some internal registers and workflow have to be modified and are different from its predecessors and OCP function is added for RTS5260. So we need this patch to ensure RTS5260 can work.

[PATCH v7,1/2] misc: rtsx: Move Realtek Card Reader Driver to misc

From: Rui Feng Because Realtek card reader drivers are pcie and usb drivers, and they bridge mmc subsystem and memstick subsystem, they are not mfd drivers. Greg and Lee Jones had a discussion about where to put the drivers, the result is that misc is a good place for

[PATCH v7,1/2] misc: rtsx: Move Realtek Card Reader Driver to misc

From: Rui Feng Because Realtek card reader drivers are pcie and usb drivers, and they bridge mmc subsystem and memstick subsystem, they are not mfd drivers. Greg and Lee Jones had a discussion about where to put the drivers, the result is that misc is a good place for them, so I move all files

Re: [PATCH] s390/drivers: use setup_timer instead of init_timer

On 11/24/2017 01:50 PM, Colin King wrote: > From: Colin Ian King > > Use setup_timer function instead of initializing timer with the > function and data fields. > > Signed-off-by: Colin Ian King > --- > drivers/s390/net/fsm.c | 4 +--- > 1

Re: [PATCH] s390/drivers: use setup_timer instead of init_timer

On 11/24/2017 01:50 PM, Colin King wrote: > From: Colin Ian King > > Use setup_timer function instead of initializing timer with the > function and data fields. > > Signed-off-by: Colin Ian King > --- > drivers/s390/net/fsm.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > >

Re: [PATCH 2/3] hwrng: exynos - add Samsung Exynos True RNG driver

It was <2017-11-24 pią 16:25>, when PrasannaKumar Muralidharan wrote: >> +} >> + >> +static int exynos_trng_do_read(struct hwrng *rng, void *data, size_t max, >> + bool wait) >> +{ >> + struct exynos_trng_dev *trng; >> + u32 val; >> + >> + max = max >

Re: [PATCH 2/3] hwrng: exynos - add Samsung Exynos True RNG driver

It was <2017-11-24 pią 16:25>, when PrasannaKumar Muralidharan wrote: >> +} >> + >> +static int exynos_trng_do_read(struct hwrng *rng, void *data, size_t max, >> + bool wait) >> +{ >> + struct exynos_trng_dev *trng; >> + u32 val; >> + >> + max = max >

[PATCH v4 2/4] vm: add a syscall to map a process memory into a pipe

From: Andrei Vagin It is a hybrid of process_vm_readv() and vmsplice(). vmsplice can map memory from a current address space into a pipe. process_vm_readv can read memory of another process. A new system call can map memory of another process into a pipe. ssize_t

[PATCH v4 2/4] vm: add a syscall to map a process memory into a pipe

From: Andrei Vagin It is a hybrid of process_vm_readv() and vmsplice(). vmsplice can map memory from a current address space into a pipe. process_vm_readv can read memory of another process. A new system call can map memory of another process into a pipe. ssize_t process_vmsplice(pid_t pid,

[PATCH] process_vmsplice.2: New page describing process_vmsplice(2) system call.

Signed-off-by: Mike Rapoport --- man2/process_vmsplice.2 | 188 1 file changed, 188 insertions(+) create mode 100644 man2/process_vmsplice.2 diff --git a/man2/process_vmsplice.2 b/man2/process_vmsplice.2 new file mode

[PATCH] process_vmsplice.2: New page describing process_vmsplice(2) system call.

Signed-off-by: Mike Rapoport --- man2/process_vmsplice.2 | 188 1 file changed, 188 insertions(+) create mode 100644 man2/process_vmsplice.2 diff --git a/man2/process_vmsplice.2 b/man2/process_vmsplice.2 new file mode 100644 index

[PATCH v4 1/4] fs/splice: introduce pages_to_pipe helper

Signed-off-by: Mike Rapoport --- fs/splice.c | 57 - 1 file changed, 36 insertions(+), 21 deletions(-) diff --git a/fs/splice.c b/fs/splice.c index 39e2dc0..7f1ffc5 100644 --- a/fs/splice.c +++ b/fs/splice.c @@

[PATCH v4 1/4] fs/splice: introduce pages_to_pipe helper

Signed-off-by: Mike Rapoport --- fs/splice.c | 57 - 1 file changed, 36 insertions(+), 21 deletions(-) diff --git a/fs/splice.c b/fs/splice.c index 39e2dc0..7f1ffc5 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1185,6 +1185,36 @@ static

[PATCH v4 4/4] test: add a test for the process_vmsplice syscall

From: Andrei Vagin This test checks that process_vmsplice() can splice pages from a remote process and returns EFAULT, if process_vmsplice() tries to splice pages by an unaccessiable address. Signed-off-by: Andrei Vagin Signed-off-by: Mike Rapoport

[PATCH v4 3/4] x86: wire up the process_vmsplice syscall

From: Andrei Vagin Signed-off-by: Andrei Vagin --- arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/x86/entry/syscalls/syscall_32.tbl

[PATCH v4 3/4] x86: wire up the process_vmsplice syscall

From: Andrei Vagin Signed-off-by: Andrei Vagin --- arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 448ac21..dc64bf5

[PATCH v4 4/4] test: add a test for the process_vmsplice syscall

From: Andrei Vagin This test checks that process_vmsplice() can splice pages from a remote process and returns EFAULT, if process_vmsplice() tries to splice pages by an unaccessiable address. Signed-off-by: Andrei Vagin Signed-off-by: Mike Rapoport ---

[PATCH v4 0/4] vm: add a syscall to map a process memory into a pipe

Hi, This patches introduces new process_vmsplice system call that combines functionality of process_vm_read and vmsplice. It allows to map the memory of another process into a pipe, similarly to what vmsplice does for its own address space. The patch 2/4 ("vm: add a syscall to map a process

[PATCH v4 0/4] vm: add a syscall to map a process memory into a pipe

Hi, This patches introduces new process_vmsplice system call that combines functionality of process_vm_read and vmsplice. It allows to map the memory of another process into a pipe, similarly to what vmsplice does for its own address space. The patch 2/4 ("vm: add a syscall to map a process

[PATCH RESEND] net: phy: harmonize phy_id{,_mask} data type

From: Richard Leitner Previously phy_id was u32 and phy_id_mask was unsigned int. As the phy_id_mask defines the important bits of the phy_id (and is therefore the same size) these two variables should be the same data type. Signed-off-by: Richard Leitner

[PATCH RESEND] net: phy: harmonize phy_id{,_mask} data type

From: Richard Leitner Previously phy_id was u32 and phy_id_mask was unsigned int. As the phy_id_mask defines the important bits of the phy_id (and is therefore the same size) these two variables should be the same data type. Signed-off-by: Richard Leitner Reviewed-by: Florian Fainelli

[RFC PATCH 2/2] net: macb: Tie-off unused RX queues

From: "Edgar E. Iglesias" Currently, we only use the first receive queue and leave the remaining DMA descriptor pointers pointing at 0. Disable unused queues by connecting them to a looped descriptor chain without free slots. Signed-off-by: Edgar E. Iglesias

[RFC PATCH 2/2] net: macb: Tie-off unused RX queues

From: "Edgar E. Iglesias" Currently, we only use the first receive queue and leave the remaining DMA descriptor pointers pointing at 0. Disable unused queues by connecting them to a looped descriptor chain without free slots. Signed-off-by: Edgar E. Iglesias Signed-off-by: Harini Katakam

[RFC PATCH 1/2] net: macb: Add RBQP to the macb queues

From: "Edgar E. Iglesias" Add RX queue pointer to macb queues to make it accessible for the multiple queues available. Currently the first RX queue is used. Signed-off-by: Edgar E. Iglesias Signed-off-by: Harini Katakam

[RFC PATCH 1/2] net: macb: Add RBQP to the macb queues

From: "Edgar E. Iglesias" Add RX queue pointer to macb queues to make it accessible for the multiple queues available. Currently the first RX queue is used. Signed-off-by: Edgar E. Iglesias Signed-off-by: Harini Katakam Signed-off-by: Michal Simek --- drivers/net/ethernet/cadence/macb.h

Re: [PATCH v4 2/4] tpm: ignore burstcount to improve tpm_tis send() performance

Hmm, this is almost 20 years old code ( I think the original code did a burst write and didn't check for error conditions until the very last byte write. I seem to remember that there was some text in the original standard to that effect (this may have gone back as far as IBM's ESS spec). The

Re: [PATCH v4 2/4] tpm: ignore burstcount to improve tpm_tis send() performance

Hmm, this is almost 20 years old code ( I think the original code did a burst write and didn't check for error conditions until the very last byte write. I seem to remember that there was some text in the original standard to that effect (this may have gone back as far as IBM's ESS spec). The

[PATCH] i2c: core: decrease reference count of device node in i2c_unregister_device

Reference count of device node was increased in of_i2c_register_device, but without decreasing it in i2c_unregister_device. Then the dynamically added device node will never be released. Fix this by adding the of_node_put. Signed-off-by: Lixin Wang ---

[PATCH] i2c: core: decrease reference count of device node in i2c_unregister_device

Reference count of device node was increased in of_i2c_register_device, but without decreasing it in i2c_unregister_device. Then the dynamically added device node will never be released. Fix this by adding the of_node_put. Signed-off-by: Lixin Wang --- drivers/i2c/i2c-core-base.c | 4 +++- 1

Re: [PATCH] mm:Add watermark slope for high mark

Hi Peter, Thank you for the patch! Yet something to improve: [auto build test ERROR on mmotm/master] [also build test ERROR on v4.15-rc1 next-20171124] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

Re: [PATCH] mm:Add watermark slope for high mark

Hi Peter, Thank you for the patch! Yet something to improve: [auto build test ERROR on mmotm/master] [also build test ERROR on v4.15-rc1 next-20171124] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

[PATCH v3 02/21] fpga: mgr: add region_id to fpga_image_info

This patch adds region_id to fpga_image_info data structure, it allows driver to pass region id information to fpga-mgr via fpga_image_info for fpga reconfiguration function. Signed-off-by: Wu Hao v3: add one line comment for region_id --- include/linux/fpga/fpga-mgr.h |

[PATCH v3 01/21] docs: fpga: add a document for Intel FPGA driver overview

Add a document for Intel FPGA driver overview. Signed-off-by: Enno Luebbers Signed-off-by: Xiao Guangrong Signed-off-by: Wu Hao v2: added FME fpga-mgr/bridge/region platform driver to driver organization.

[PATCH v3 00/21] Intel FPGA Device Drivers

Hi All, Here is v3 patch-series adding drivers for Intel FPGA devices. The Intel FPGA driver provides interfaces for userspace applications to configure, enumerate, open, and access FPGA accelerators on platforms equipped with Intel(R) PCIe based FPGA solutions and enables system level

[PATCH v3 02/21] fpga: mgr: add region_id to fpga_image_info

This patch adds region_id to fpga_image_info data structure, it allows driver to pass region id information to fpga-mgr via fpga_image_info for fpga reconfiguration function. Signed-off-by: Wu Hao v3: add one line comment for region_id --- include/linux/fpga/fpga-mgr.h | 2 ++ 1 file

[PATCH v3 01/21] docs: fpga: add a document for Intel FPGA driver overview

Add a document for Intel FPGA driver overview. Signed-off-by: Enno Luebbers Signed-off-by: Xiao Guangrong Signed-off-by: Wu Hao v2: added FME fpga-mgr/bridge/region platform driver to driver organization. updated open discussion per current implementation. fixed some typos. v3:

[PATCH v3 00/21] Intel FPGA Device Drivers

Hi All, Here is v3 patch-series adding drivers for Intel FPGA devices. The Intel FPGA driver provides interfaces for userspace applications to configure, enumerate, open, and access FPGA accelerators on platforms equipped with Intel(R) PCIe based FPGA solutions and enables system level

Re: [PATCH v2] checkpatch: Add a warning for log messages that don't end in a new line

On Sun, 26 Nov 2017, Logan Gunthorpe wrote: > > > On 26/11/17 11:42 PM, Julia Lawall wrote: > > Although I guess that in that case the whole exercise is pointless? > > Because every print will at runtime be followed by another print, which > > will add either the newline or a continuation. > >

Re: [PATCH v2] checkpatch: Add a warning for log messages that don't end in a new line

On Sun, 26 Nov 2017, Logan Gunthorpe wrote: > > > On 26/11/17 11:42 PM, Julia Lawall wrote: > > Although I guess that in that case the whole exercise is pointless? > > Because every print will at runtime be followed by another print, which > > will add either the newline or a continuation. > >

[PATCH v3 04/21] fpga: add device feature list support

Device Feature List (DFL) defines a feature list structure that creates a link list of feature headers within the MMIO space to provide an extensible way of adding features. This patch introduces a kernel module to provide basic infrastructure to support FPGA devices which implement the Device

[PATCH v3 04/21] fpga: add device feature list support

Device Feature List (DFL) defines a feature list structure that creates a link list of feature headers within the MMIO space to provide an extensible way of adding features. This patch introduces a kernel module to provide basic infrastructure to support FPGA devices which implement the Device

[PATCH v3 06/21] fpga: dfl: adds fpga_cdev_find_port

For feature devices, e.g FPGA Management Engine (FME), it may require fpga_cdev_find_port function to find dedicate port for further actions, so export this function from feature device driver module. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers

[PATCH v3 07/21] fpga: dfl: add feature device infrastructure

From: Xiao Guangrong This patch abstracts the common operations of the sub features, and defines the feature_ops data structure, including init, uinit and ioctl function pointers. And this patch adds some common helper functions for FME and AFU drivers, e.g

[PATCH v3 06/21] fpga: dfl: adds fpga_cdev_find_port

For feature devices, e.g FPGA Management Engine (FME), it may require fpga_cdev_find_port function to find dedicate port for further actions, so export this function from feature device driver module. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao

[PATCH v3 07/21] fpga: dfl: add feature device infrastructure

From: Xiao Guangrong This patch abstracts the common operations of the sub features, and defines the feature_ops data structure, including init, uinit and ioctl function pointers. And this patch adds some common helper functions for FME and AFU drivers, e.g feature_dev_use_begin/end which are

[PATCH v3 10/21] fpga: dfl: add FPGA Management Engine driver basic framework

From: Kang Luwei The FPGA Management Engine (FME) provides power, thermal management, performance counters, partial reconfiguration and other functions. For each function, it is packaged into a private feature linked to the FME feature device in the 'Device Feature List'.

[PATCH v3 10/21] fpga: dfl: add FPGA Management Engine driver basic framework

From: Kang Luwei The FPGA Management Engine (FME) provides power, thermal management, performance counters, partial reconfiguration and other functions. For each function, it is packaged into a private feature linked to the FME feature device in the 'Device Feature List'. It's a platform device

[PATCH] f2fs: avoid false positive of free secs check

Sometimes f2fs_gc is called with no target victim (e.g. xfstest generic/027, ndirty_node:545 ndiry_dent:1 ndirty_imeta:513 rsvd_segs:21 free_segs:27, has_not_enough_free_secs will return true). This patch first merges pages and then converts into sections. Signed-off-by: Yunlong Song

[PATCH v3 11/21] fpga: dfl: fme: add header sub feature support

From: Kang Luwei The header register set is always present for FPGA Management Engine (FME), this patch implements init and uinit function for header sub feature and introduce several read-only sysfs interfaces for the capability and status. Sysfs interfaces: *

[PATCH] f2fs: avoid false positive of free secs check

Sometimes f2fs_gc is called with no target victim (e.g. xfstest generic/027, ndirty_node:545 ndiry_dent:1 ndirty_imeta:513 rsvd_segs:21 free_segs:27, has_not_enough_free_secs will return true). This patch first merges pages and then converts into sections. Signed-off-by: Yunlong Song ---

[PATCH v3 11/21] fpga: dfl: fme: add header sub feature support

From: Kang Luwei The header register set is always present for FPGA Management Engine (FME), this patch implements init and uinit function for header sub feature and introduce several read-only sysfs interfaces for the capability and status. Sysfs interfaces: *

[PATCH v3 09/21] fpga: intel-dfl-pci: add enumeration for feature devices

The Device Feature List (DFL) is implemented in MMIO, and features are linked via the DFLs. This patch enables pcie driver to prepare enumeration information (e.g locations of all device feature lists in MMIO) and use common APIs provided by the Device Feature List framework to enumerate each

[PATCH v3 09/21] fpga: intel-dfl-pci: add enumeration for feature devices

The Device Feature List (DFL) is implemented in MMIO, and features are linked via the DFLs. This patch enables pcie driver to prepare enumeration information (e.g locations of all device feature lists in MMIO) and use common APIs provided by the Device Feature List framework to enumerate each

[PATCH v3 15/21] fpga: dfl: add fpga bridge platform driver for FME

This patch adds fpga bridge platform driver for FPGA Management Engine. It implements the enable_set call back for fpga bridge. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao

[PATCH v3 15/21] fpga: dfl: add fpga bridge platform driver for FME

This patch adds fpga bridge platform driver for FPGA Management Engine. It implements the enable_set call back for fpga bridge. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao Signed-off-by: Christopher Rauer Signed-off-by: Wu Hao v3: rename driver to

[PATCH v3 18/21] fpga: dfl: afu: add header sub feature support

The port header register set is always present for port, it is mainly for capability, control and status of the ports that AFU connected to. This patch implements header sub feature support. Below user interfaces are created by this patch. Sysfs interface: * /sys/class/fpga_region///id

[PATCH v3 16/21] fpga: dfl: add fpga region platform driver for FME

This patch adds fpga region platform driver for FPGA Management Engine. It register an fpga region with given fpga manager / bridge device. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao

[PATCH v3 12/21] fpga: dfl: fme: add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support

FPGA_GET_API_VERSION and FPGA_CHECK_EXTENSION ioctls are common ones which need to be supported by all feature devices drivers including FME and AFU. Userspace application can use these ioctl interfaces to get the API info and check if specific extension is supported or not in current driver.

[PATCH v3 16/21] fpga: dfl: add fpga region platform driver for FME

This patch adds fpga region platform driver for FPGA Management Engine. It register an fpga region with given fpga manager / bridge device. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao Signed-off-by: Christopher Rauer Signed-off-by: Wu Hao v3:

[PATCH v3 12/21] fpga: dfl: fme: add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support

FPGA_GET_API_VERSION and FPGA_CHECK_EXTENSION ioctls are common ones which need to be supported by all feature devices drivers including FME and AFU. Userspace application can use these ioctl interfaces to get the API info and check if specific extension is supported or not in current driver.

[PATCH v3 18/21] fpga: dfl: afu: add header sub feature support

The port header register set is always present for port, it is mainly for capability, control and status of the ports that AFU connected to. This patch implements header sub feature support. Below user interfaces are created by this patch. Sysfs interface: * /sys/class/fpga_region///id

[PATCH v3 20/21] fpga: dfl: afu: add user afu sub feature support

From: Xiao Guangrong User Accelerated Function Unit sub feature exposes the MMIO region of the AFU. After valid green bitstream (GBS) is programmed and port is enabled, then this MMIO region could be accessed. This patch adds support to enumerate the AFU MMIO

[PATCH v3 20/21] fpga: dfl: afu: add user afu sub feature support

From: Xiao Guangrong User Accelerated Function Unit sub feature exposes the MMIO region of the AFU. After valid green bitstream (GBS) is programmed and port is enabled, then this MMIO region could be accessed. This patch adds support to enumerate the AFU MMIO region and expose it to userspace

Re: [PATCH v2] checkpatch: Add a warning for log messages that don't end in a new line

On 26/11/17 11:42 PM, Julia Lawall wrote: > Although I guess that in that case the whole exercise is pointless? > Because every print will at runtime be followed by another print, which > will add either the newline or a continuation. Yes, in practice the '\n' at the end of every log line is

Re: [PATCH v2] checkpatch: Add a warning for log messages that don't end in a new line

On 26/11/17 11:42 PM, Julia Lawall wrote: > Although I guess that in that case the whole exercise is pointless? > Because every print will at runtime be followed by another print, which > will add either the newline or a continuation. Yes, in practice the '\n' at the end of every log line is

[PATCH v3 19/21] fpga: dfl: afu: add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support

FPGA_GET_API_VERSION and FPGA_CHECK_EXTENSION ioctls are common ones which need to be supported by all feature devices drivers including FME and AFU. This patch implements above 2 ioctls in FPGA Accelerated Function Unit (AFU) driver. Signed-off-by: Tim Whisonant

[PATCH v3 14/21] fpga: dfl: add fpga manager platform driver for FME

This patch adds fpga manager driver for FPGA Management Engine (FME). It implements fpga_manager_ops for FPGA Partial Reconfiguration function. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao

[PATCH v3 19/21] fpga: dfl: afu: add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support

FPGA_GET_API_VERSION and FPGA_CHECK_EXTENSION ioctls are common ones which need to be supported by all feature devices drivers including FME and AFU. This patch implements above 2 ioctls in FPGA Accelerated Function Unit (AFU) driver. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers

[PATCH v3 14/21] fpga: dfl: add fpga manager platform driver for FME

This patch adds fpga manager driver for FPGA Management Engine (FME). It implements fpga_manager_ops for FPGA Partial Reconfiguration function. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao Signed-off-by: Christopher Rauer Signed-off-by: Kang Luwei

[PATCH v3 21/21] fpga: dfl: afu: add FPGA_PORT_DMA_MAP/UNMAP ioctls support

DMA memory regions are required for Accelerated Function Unit (AFU) usage. These two ioctls allow user space applications to map user memory regions for dma, and unmap them after use. Iova is returned from driver to user space application via FPGA_PORT_DMA_MAP ioctl. Application needs to unmap it

[PATCH v3 21/21] fpga: dfl: afu: add FPGA_PORT_DMA_MAP/UNMAP ioctls support

DMA memory regions are required for Accelerated Function Unit (AFU) usage. These two ioctls allow user space applications to map user memory regions for dma, and unmap them after use. Iova is returned from driver to user space application via FPGA_PORT_DMA_MAP ioctl. Application needs to unmap it

[PATCH v3 03/21] fpga: mgr: add status for fpga-manager

This patch adds status to fpga-manager data structure, to allow driver to store full/partial reconfiguration errors and other status information, and adds one status callback to fpga_manager_ops to allow fpga_manager to collect latest status when failures are detected. The following sysfs file is

[PATCH v3 05/21] fpga: dfl: add chardev support for feature devices

For feature devices drivers, both the FPGA Management Engine (FME) and Accelerated Function Unit (AFU) driver need to expose user interfaces via the device file, for example, mmap and ioctls. This patch adds chardev support in the fpga-dfl driver for feature devices, FME and AFU. It reserves the

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