ASoC: Updates for v5.1

Lots and lots of new drivers so far, a highlight being the MediaTek
 BTCVSD which is a driver for a Bluetooth radio chip - the first such
 driver we've had upstream.  Hopefully we will soon also see a baseband
 with an upstream driver!
 
  - Support for only powering up channels that are actively being used.
  - Quite a few improvements to simplify the generic card drivers,
    especially the merge of the SCU cards into the main generic drivers.
  - Lots of fixes for probing on Intel systems, trying to rationalize
    things to look more standard from a framework point of view.
  - New drivers for Asahi Kasei Microdevices AK4497, Cirrus Logic CS4341,
    Google ChromeOS embedded controllers, Ingenic JZ4725B, MediaTek
    BTCVSD, MT8183 and MT6358, NXP MICFIL, Rockchip RK3328, Spreadtrum
    DMA controllers, Qualcomm WCD9335, Xilinx S/PDIF and PCM formatters.
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Merge tag 'asoc-v5.1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v5.1

Lots and lots of new drivers so far, a highlight being the MediaTek
BTCVSD which is a driver for a Bluetooth radio chip - the first such
driver we've had upstream.  Hopefully we will soon also see a baseband
with an upstream driver!

 - Support for only powering up channels that are actively being used.
 - Quite a few improvements to simplify the generic card drivers,
   especially the merge of the SCU cards into the main generic drivers.
 - Lots of fixes for probing on Intel systems, trying to rationalize
   things to look more standard from a framework point of view.
 - New drivers for Asahi Kasei Microdevices AK4497, Cirrus Logic CS4341,
   Google ChromeOS embedded controllers, Ingenic JZ4725B, MediaTek
   BTCVSD, MT8183 and MT6358, NXP MICFIL, Rockchip RK3328, Spreadtrum
   DMA controllers, Qualcomm WCD9335, Xilinx S/PDIF and PCM formatters.
This commit is contained in:
Takashi Iwai 2019-02-08 14:20:32 +01:00
commit d02cac152c
1298 changed files with 38948 additions and 8724 deletions

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@ -72,6 +72,10 @@ ForEachMacros:
- 'apei_estatus_for_each_section'
- 'ata_for_each_dev'
- 'ata_for_each_link'
- '__ata_qc_for_each'
- 'ata_qc_for_each'
- 'ata_qc_for_each_raw'
- 'ata_qc_for_each_with_internal'
- 'ax25_for_each'
- 'ax25_uid_for_each'
- 'bio_for_each_integrity_vec'
@ -85,6 +89,7 @@ ForEachMacros:
- 'blk_queue_for_each_rl'
- 'bond_for_each_slave'
- 'bond_for_each_slave_rcu'
- 'bpf_for_each_spilled_reg'
- 'btree_for_each_safe128'
- 'btree_for_each_safe32'
- 'btree_for_each_safe64'
@ -103,6 +108,8 @@ ForEachMacros:
- 'drm_atomic_crtc_for_each_plane'
- 'drm_atomic_crtc_state_for_each_plane'
- 'drm_atomic_crtc_state_for_each_plane_state'
- 'drm_atomic_for_each_plane_damage'
- 'drm_connector_for_each_possible_encoder'
- 'drm_for_each_connector_iter'
- 'drm_for_each_crtc'
- 'drm_for_each_encoder'
@ -121,11 +128,21 @@ ForEachMacros:
- 'for_each_bio'
- 'for_each_board_func_rsrc'
- 'for_each_bvec'
- 'for_each_card_components'
- 'for_each_card_links'
- 'for_each_card_links_safe'
- 'for_each_card_prelinks'
- 'for_each_card_rtds'
- 'for_each_card_rtds_safe'
- 'for_each_cgroup_storage_type'
- 'for_each_child_of_node'
- 'for_each_clear_bit'
- 'for_each_clear_bit_from'
- 'for_each_cmsghdr'
- 'for_each_compatible_node'
- 'for_each_component_dais'
- 'for_each_component_dais_safe'
- 'for_each_comp_order'
- 'for_each_console'
- 'for_each_cpu'
- 'for_each_cpu_and'
@ -133,6 +150,10 @@ ForEachMacros:
- 'for_each_cpu_wrap'
- 'for_each_dev_addr'
- 'for_each_dma_cap_mask'
- 'for_each_dpcm_be'
- 'for_each_dpcm_be_rollback'
- 'for_each_dpcm_be_safe'
- 'for_each_dpcm_fe'
- 'for_each_drhd_unit'
- 'for_each_dss_dev'
- 'for_each_efi_memory_desc'
@ -149,6 +170,7 @@ ForEachMacros:
- 'for_each_iommu'
- 'for_each_ip_tunnel_rcu'
- 'for_each_irq_nr'
- 'for_each_link_codecs'
- 'for_each_lru'
- 'for_each_matching_node'
- 'for_each_matching_node_and_match'
@ -160,6 +182,7 @@ ForEachMacros:
- 'for_each_mem_range_rev'
- 'for_each_migratetype_order'
- 'for_each_msi_entry'
- 'for_each_msi_entry_safe'
- 'for_each_net'
- 'for_each_netdev'
- 'for_each_netdev_continue'
@ -183,12 +206,14 @@ ForEachMacros:
- 'for_each_node_with_property'
- 'for_each_of_allnodes'
- 'for_each_of_allnodes_from'
- 'for_each_of_cpu_node'
- 'for_each_of_pci_range'
- 'for_each_old_connector_in_state'
- 'for_each_old_crtc_in_state'
- 'for_each_oldnew_connector_in_state'
- 'for_each_oldnew_crtc_in_state'
- 'for_each_oldnew_plane_in_state'
- 'for_each_oldnew_plane_in_state_reverse'
- 'for_each_oldnew_private_obj_in_state'
- 'for_each_old_plane_in_state'
- 'for_each_old_private_obj_in_state'
@ -206,14 +231,17 @@ ForEachMacros:
- 'for_each_process'
- 'for_each_process_thread'
- 'for_each_property_of_node'
- 'for_each_registered_fb'
- 'for_each_reserved_mem_region'
- 'for_each_resv_unavail_range'
- 'for_each_rtd_codec_dai'
- 'for_each_rtd_codec_dai_rollback'
- 'for_each_rtdcom'
- 'for_each_rtdcom_safe'
- 'for_each_set_bit'
- 'for_each_set_bit_from'
- 'for_each_sg'
- 'for_each_sg_page'
- 'for_each_sibling_event'
- '__for_each_thread'
- 'for_each_thread'
- 'for_each_zone'
@ -251,6 +279,8 @@ ForEachMacros:
- 'hlist_nulls_for_each_entry_from'
- 'hlist_nulls_for_each_entry_rcu'
- 'hlist_nulls_for_each_entry_safe'
- 'i3c_bus_for_each_i2cdev'
- 'i3c_bus_for_each_i3cdev'
- 'ide_host_for_each_port'
- 'ide_port_for_each_dev'
- 'ide_port_for_each_present_dev'
@ -267,11 +297,14 @@ ForEachMacros:
- 'kvm_for_each_memslot'
- 'kvm_for_each_vcpu'
- 'list_for_each'
- 'list_for_each_codec'
- 'list_for_each_codec_safe'
- 'list_for_each_entry'
- 'list_for_each_entry_continue'
- 'list_for_each_entry_continue_rcu'
- 'list_for_each_entry_continue_reverse'
- 'list_for_each_entry_from'
- 'list_for_each_entry_from_rcu'
- 'list_for_each_entry_from_reverse'
- 'list_for_each_entry_lockless'
- 'list_for_each_entry_rcu'
@ -291,6 +324,7 @@ ForEachMacros:
- 'media_device_for_each_intf'
- 'media_device_for_each_link'
- 'media_device_for_each_pad'
- 'nanddev_io_for_each_page'
- 'netdev_for_each_lower_dev'
- 'netdev_for_each_lower_private'
- 'netdev_for_each_lower_private_rcu'
@ -357,12 +391,14 @@ ForEachMacros:
- 'sk_nulls_for_each'
- 'sk_nulls_for_each_from'
- 'sk_nulls_for_each_rcu'
- 'snd_array_for_each'
- 'snd_pcm_group_for_each_entry'
- 'snd_soc_dapm_widget_for_each_path'
- 'snd_soc_dapm_widget_for_each_path_safe'
- 'snd_soc_dapm_widget_for_each_sink_path'
- 'snd_soc_dapm_widget_for_each_source_path'
- 'tb_property_for_each'
- 'tcf_exts_for_each_action'
- 'udp_portaddr_for_each_entry'
- 'udp_portaddr_for_each_entry_rcu'
- 'usb_hub_for_each_child'
@ -371,6 +407,11 @@ ForEachMacros:
- 'v4l2_m2m_for_each_dst_buf_safe'
- 'v4l2_m2m_for_each_src_buf'
- 'v4l2_m2m_for_each_src_buf_safe'
- 'virtio_device_for_each_vq'
- 'xa_for_each'
- 'xas_for_each'
- 'xas_for_each_conflict'
- 'xas_for_each_marked'
- 'zorro_for_each_dev'
#IncludeBlocks: Preserve # Unknown to clang-format-5.0

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@ -279,3 +279,12 @@ Description:
size in 512B sectors of the zones of the device, with
the eventual exception of the last zone of the device
which may be smaller.
What: /sys/block/<disk>/queue/io_timeout
Date: November 2018
Contact: Weiping Zhang <zhangweiping@didiglobal.com>
Description:
io_timeout is the request timeout in milliseconds. If a request
does not complete in this time then the block driver timeout
handler is invoked. That timeout handler can decide to retry
the request, to fail it or to start a device recovery strategy.

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@ -122,11 +122,18 @@ Description:
statistics (bd_count, bd_reads, bd_writes) in a format
similar to block layer statistics file format.
What: /sys/block/zram<id>/writeback_limit_enable
Date: November 2018
Contact: Minchan Kim <minchan@kernel.org>
Description:
The writeback_limit_enable file is read-write and specifies
eanbe of writeback_limit feature. "1" means eable the feature.
No limit "0" is the initial state.
What: /sys/block/zram<id>/writeback_limit
Date: November 2018
Contact: Minchan Kim <minchan@kernel.org>
Description:
The writeback_limit file is read-write and specifies the maximum
amount of writeback ZRAM can do. The limit could be changed
in run time and "0" means disable the limit.
No limit is the initial state.
in run time.

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@ -357,6 +357,13 @@ video playing/streaming, a very low drop rate may be more important
than maximum throughput. In these cases, consider setting the
strict_guarantees parameter.
slice_idle_us
-------------
Controls the same tuning parameter as slice_idle, but in microseconds.
Either tunable can be used to set idling behavior. Afterwards, the
other tunable will reflect the newly set value in sysfs.
strict_guarantees
-----------------

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@ -88,7 +88,8 @@ shared_tags=[0/1]: Default: 0
zoned=[0/1]: Default: 0
0: Block device is exposed as a random-access block device.
1: Block device is exposed as a host-managed zoned block device.
1: Block device is exposed as a host-managed zoned block device. Requires
CONFIG_BLK_DEV_ZONED.
zone_size=[MB]: Default: 256
Per zone size when exposed as a zoned block device. Must be a power of two.

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@ -67,6 +67,13 @@ If set to a value larger than 0, the kernel will put the process issuing
IO to sleep for this amount of microseconds before entering classic
polling.
io_timeout (RW)
---------------
io_timeout is the request timeout in milliseconds. If a request does not
complete in this time then the block driver timeout handler is invoked.
That timeout handler can decide to retry the request, to fail it or to start
a device recovery strategy.
iostats (RW)
-------------
This file is used to control (on/off) the iostats accounting of the

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@ -156,22 +156,23 @@ Per-device statistics are exported as various nodes under /sys/block/zram<id>/
A brief description of exported device attributes. For more details please
read Documentation/ABI/testing/sysfs-block-zram.
Name access description
---- ------ -----------
disksize RW show and set the device's disk size
initstate RO shows the initialization state of the device
reset WO trigger device reset
mem_used_max WO reset the `mem_used_max' counter (see later)
mem_limit WO specifies the maximum amount of memory ZRAM can use
to store the compressed data
writeback_limit WO specifies the maximum amount of write IO zram can
write out to backing device as 4KB unit
max_comp_streams RW the number of possible concurrent compress operations
comp_algorithm RW show and change the compression algorithm
compact WO trigger memory compaction
debug_stat RO this file is used for zram debugging purposes
backing_dev RW set up backend storage for zram to write out
idle WO mark allocated slot as idle
Name access description
---- ------ -----------
disksize RW show and set the device's disk size
initstate RO shows the initialization state of the device
reset WO trigger device reset
mem_used_max WO reset the `mem_used_max' counter (see later)
mem_limit WO specifies the maximum amount of memory ZRAM can use
to store the compressed data
writeback_limit WO specifies the maximum amount of write IO zram can
write out to backing device as 4KB unit
writeback_limit_enable RW show and set writeback_limit feature
max_comp_streams RW the number of possible concurrent compress operations
comp_algorithm RW show and change the compression algorithm
compact WO trigger memory compaction
debug_stat RO this file is used for zram debugging purposes
backing_dev RW set up backend storage for zram to write out
idle WO mark allocated slot as idle
User space is advised to use the following files to read the device statistics.
@ -280,32 +281,51 @@ With the command, zram writeback idle pages from memory to the storage.
If there are lots of write IO with flash device, potentially, it has
flash wearout problem so that admin needs to design write limitation
to guarantee storage health for entire product life.
To overcome the concern, zram supports "writeback_limit".
The "writeback_limit"'s default value is 0 so that it doesn't limit
any writeback. If admin want to measure writeback count in a certain
period, he could know it via /sys/block/zram0/bd_stat's 3rd column.
To overcome the concern, zram supports "writeback_limit" feature.
The "writeback_limit_enable"'s default value is 0 so that it doesn't limit
any writeback. IOW, if admin want to apply writeback budget, he should
enable writeback_limit_enable via
$ echo 1 > /sys/block/zramX/writeback_limit_enable
Once writeback_limit_enable is set, zram doesn't allow any writeback
until admin set the budget via /sys/block/zramX/writeback_limit.
(If admin doesn't enable writeback_limit_enable, writeback_limit's value
assigned via /sys/block/zramX/writeback_limit is meaninless.)
If admin want to limit writeback as per-day 400M, he could do it
like below.
MB_SHIFT=20
4K_SHIFT=12
echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
/sys/block/zram0/writeback_limit.
$ MB_SHIFT=20
$ 4K_SHIFT=12
$ echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
/sys/block/zram0/writeback_limit.
$ echo 1 > /sys/block/zram0/writeback_limit_enable
If admin want to allow further write again, he could do it like below
If admin want to allow further write again once the bugdet is exausted,
he could do it like below
echo 0 > /sys/block/zram0/writeback_limit
$ echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
/sys/block/zram0/writeback_limit
If admin want to see remaining writeback budget since he set,
cat /sys/block/zram0/writeback_limit
$ cat /sys/block/zramX/writeback_limit
If admin want to disable writeback limit, he could do
$ echo 0 > /sys/block/zramX/writeback_limit_enable
The writeback_limit count will reset whenever you reset zram(e.g.,
system reboot, echo 1 > /sys/block/zramX/reset) so keeping how many of
writeback happened until you reset the zram to allocate extra writeback
budget in next setting is user's job.
If admin want to measure writeback count in a certain period, he could
know it via /sys/block/zram0/bd_stat's 3rd column.
= memory tracking
With CONFIG_ZRAM_MEMORY_TRACKING, user can know information of the

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@ -157,12 +157,11 @@ Q: Does BPF have a stable ABI?
------------------------------
A: YES. BPF instructions, arguments to BPF programs, set of helper
functions and their arguments, recognized return codes are all part
of ABI. However when tracing programs are using bpf_probe_read() helper
to walk kernel internal datastructures and compile with kernel
internal headers these accesses can and will break with newer
kernels. The union bpf_attr -> kern_version is checked at load time
to prevent accidentally loading kprobe-based bpf programs written
for a different kernel. Networking programs don't do kern_version check.
of ABI. However there is one specific exception to tracing programs
which are using helpers like bpf_probe_read() to walk kernel internal
data structures and compile with kernel internal headers. Both of these
kernel internals are subject to change and can break with newer kernels
such that the program needs to be adapted accordingly.
Q: How much stack space a BPF program uses?
-------------------------------------------

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@ -108,12 +108,13 @@ some, but not all of the other indices changing.
Sometimes you need to ensure that a subsequent call to :c:func:`xa_store`
will not need to allocate memory. The :c:func:`xa_reserve` function
will store a reserved entry at the indicated index. Users of the normal
API will see this entry as containing ``NULL``. If you do not need to
use the reserved entry, you can call :c:func:`xa_release` to remove the
unused entry. If another user has stored to the entry in the meantime,
:c:func:`xa_release` will do nothing; if instead you want the entry to
become ``NULL``, you should use :c:func:`xa_erase`.
will store a reserved entry at the indicated index. Users of the
normal API will see this entry as containing ``NULL``. If you do
not need to use the reserved entry, you can call :c:func:`xa_release`
to remove the unused entry. If another user has stored to the entry
in the meantime, :c:func:`xa_release` will do nothing; if instead you
want the entry to become ``NULL``, you should use :c:func:`xa_erase`.
Using :c:func:`xa_insert` on a reserved entry will fail.
If all entries in the array are ``NULL``, the :c:func:`xa_empty` function
will return ``true``.
@ -183,6 +184,8 @@ Takes xa_lock internally:
* :c:func:`xa_store_bh`
* :c:func:`xa_store_irq`
* :c:func:`xa_insert`
* :c:func:`xa_insert_bh`
* :c:func:`xa_insert_irq`
* :c:func:`xa_erase`
* :c:func:`xa_erase_bh`
* :c:func:`xa_erase_irq`

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@ -235,4 +235,4 @@ cpus {
===========================================
[1] ARM Linux Kernel documentation - CPUs bindings
Documentation/devicetree/bindings/arm/cpus.txt
Documentation/devicetree/bindings/arm/cpus.yaml

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@ -684,7 +684,7 @@ cpus {
===========================================
[1] ARM Linux Kernel documentation - CPUs bindings
Documentation/devicetree/bindings/arm/cpus.txt
Documentation/devicetree/bindings/arm/cpus.yaml
[2] ARM Linux Kernel documentation - PSCI bindings
Documentation/devicetree/bindings/arm/psci.txt

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@ -4,7 +4,7 @@ SP810 System Controller
Required properties:
- compatible: standard compatible string for a Primecell peripheral,
see Documentation/devicetree/bindings/arm/primecell.txt
see Documentation/devicetree/bindings/arm/primecell.yaml
for more details
should be: "arm,sp810", "arm,primecell"

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@ -472,4 +472,4 @@ cpus {
===============================================================================
[1] ARM Linux kernel documentation
Documentation/devicetree/bindings/arm/cpus.txt
Documentation/devicetree/bindings/arm/cpus.yaml

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@ -18,4 +18,4 @@ Required Properties:
Each clock is assigned an identifier and client nodes use this identifier
to specify the clock which they consume.
All these identifier could be found in <dt-bindings/clock/marvell-mmp2.h>.
All these identifiers could be found in <dt-bindings/clock/marvell,mmp2.h>.

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@ -1,6 +1,6 @@
* ARM PrimeCell Color LCD Controller PL110/PL111
See also Documentation/devicetree/bindings/arm/primecell.txt
See also Documentation/devicetree/bindings/arm/primecell.yaml
Required properties:

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@ -27,7 +27,6 @@ Example:
reg = <0x04300000 0x20000>;
reg-names = "kgsl_3d0_reg_memory";
interrupts = <GIC_SPI 80 0>;
interrupt-names = "kgsl_3d0_irq";
clock-names =
"core",
"iface",

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@ -14,8 +14,6 @@ Required properties:
"marvell,armada-8k-gpio" should be used for the Armada 7K and 8K
SoCs (either from AP or CP), see
Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt
and
Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
for specific details about the offset property.

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@ -78,7 +78,7 @@ Sub-nodes:
PPI affinity can be expressed as a single "ppi-partitions" node,
containing a set of sub-nodes, each with the following property:
- affinity: Should be a list of phandles to CPU nodes (as described in
Documentation/devicetree/bindings/arm/cpus.txt).
Documentation/devicetree/bindings/arm/cpus.yaml).
GICv3 has one or more Interrupt Translation Services (ITS) that are
used to route Message Signalled Interrupts (MSI) to the CPUs.

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@ -1,7 +1,8 @@
Altera SOCFPGA Reset Manager
Required properties:
- compatible : "altr,rst-mgr"
- compatible : "altr,rst-mgr" for (Cyclone5/Arria5/Arria10)
"altr,stratix10-rst-mgr","altr,rst-mgr" for Stratix10 ARM64 SoC
- reg : Should contain 1 register ranges(address and length)
- altr,modrst-offset : Should contain the offset of the first modrst register.
- #reset-cells: 1

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@ -120,27 +120,30 @@ Example:
};
USB3 core reset
---------------
Peripheral core reset in glue layer
-----------------------------------
USB3 core reset belongs to USB3 glue layer. Before using the core reset,
it is necessary to control the clocks and resets to enable this layer.
These clocks and resets should be described in each property.
Some peripheral core reset belongs to its own glue layer. Before using
this core reset, it is necessary to control the clocks and resets to enable
this layer. These clocks and resets should be described in each property.
Required properties:
- compatible: Should be
"socionext,uniphier-pro4-usb3-reset" - for Pro4 SoC
"socionext,uniphier-pxs2-usb3-reset" - for PXs2 SoC
"socionext,uniphier-ld20-usb3-reset" - for LD20 SoC
"socionext,uniphier-pxs3-usb3-reset" - for PXs3 SoC
"socionext,uniphier-pro4-usb3-reset" - for Pro4 SoC USB3
"socionext,uniphier-pxs2-usb3-reset" - for PXs2 SoC USB3
"socionext,uniphier-ld20-usb3-reset" - for LD20 SoC USB3
"socionext,uniphier-pxs3-usb3-reset" - for PXs3 SoC USB3
"socionext,uniphier-pro4-ahci-reset" - for Pro4 SoC AHCI
"socionext,uniphier-pxs2-ahci-reset" - for PXs2 SoC AHCI
"socionext,uniphier-pxs3-ahci-reset" - for PXs3 SoC AHCI
- #reset-cells: Should be 1.
- reg: Specifies offset and length of the register set for the device.
- clocks: A list of phandles to the clock gate for USB3 glue layer.
- clocks: A list of phandles to the clock gate for the glue layer.
According to the clock-names, appropriate clocks are required.
- clock-names: Should contain
"gio", "link" - for Pro4 SoC
"link" - for others
- resets: A list of phandles to the reset control for USB3 glue layer.
- resets: A list of phandles to the reset control for the glue layer.
According to the reset-names, appropriate resets are required.
- reset-names: Should contain
"gio", "link" - for Pro4 SoC

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@ -55,7 +55,7 @@ of these nodes are defined by the individual bindings for the specific function
= EXAMPLE
The following example represents the GLINK RPM node on a MSM8996 device, with
the function for the "rpm_request" channel defined, which is used for
regualtors and root clocks.
regulators and root clocks.
apcs_glb: mailbox@9820000 {
compatible = "qcom,msm8996-apcs-hmss-global";

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@ -41,12 +41,12 @@ processor ID) and a string identifier.
- qcom,local-pid:
Usage: required
Value type: <u32>
Definition: specifies the identfier of the local endpoint of this edge
Definition: specifies the identifier of the local endpoint of this edge
- qcom,remote-pid:
Usage: required
Value type: <u32>
Definition: specifies the identfier of the remote endpoint of this edge
Definition: specifies the identifier of the remote endpoint of this edge
= SUBNODES
Each SMP2P pair contain a set of inbound and outbound entries, these are

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@ -4,7 +4,7 @@ This device supports I2C mode.
Required properties:
- compatible : "asahi-kasei,ak4458"
- compatible : "asahi-kasei,ak4458" or "asahi-kasei,ak4497"
- reg : The I2C address of the device for I2C
Optional properties:

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@ -1,123 +0,0 @@
Audio-Graph-SCU-Card:
Audio-Graph-SCU-Card is "Audio-Graph-Card" + "ALSA DPCM".
It is based on common bindings for device graphs.
see ${LINUX}/Documentation/devicetree/bindings/graph.txt
Basically, Audio-Graph-SCU-Card property is same as
Simple-Card / Simple-SCU-Card / Audio-Graph-Card.
see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
${LINUX}/Documentation/devicetree/bindings/sound/simple-scu-card.txt
${LINUX}/Documentation/devicetree/bindings/sound/audio-graph-card.txt
Below are same as Simple-Card / Audio-Graph-Card.
- label
- dai-format
- frame-master
- bitclock-master
- bitclock-inversion
- frame-inversion
- dai-tdm-slot-num
- dai-tdm-slot-width
- clocks / system-clock-frequency
Below are same as Simple-SCU-Card.
- convert-rate
- convert-channels
- prefix
- routing
Required properties:
- compatible : "audio-graph-scu-card";
- dais : list of CPU DAI port{s}
Example 1. Sampling Rate Conversion
sound_card {
compatible = "audio-graph-scu-card";
label = "sound-card";
prefix = "codec";
routing = "codec Playback", "DAI0 Playback",
"DAI0 Capture", "codec Capture";
convert-rate = <48000>;
dais = <&cpu_port>;
};
audio-codec {
...
port {
codec_endpoint: endpoint {
remote-endpoint = <&cpu_endpoint>;
};
};
};
dai-controller {
...
cpu_port: port {
cpu_endpoint: endpoint {
remote-endpoint = <&codec_endpoint>;
dai-format = "left_j";
...
};
};
};
Example 2. 2 CPU 1 Codec (Mixing)
sound_card {
compatible = "audio-graph-scu-card";
label = "sound-card";
routing = "codec Playback", "DAI0 Playback",
"codec Playback", "DAI1 Playback",
"DAI0 Capture", "codec Capture";
dais = <&cpu_port0
&cpu_port1>;
};
audio-codec {
...
audio-graph-card,prefix = "codec";
audio-graph-card,convert-rate = <48000>;
port {
codec_endpoint0: endpoint {
remote-endpoint = <&cpu_endpoint0>;
};
codec_endpoint1: endpoint {
remote-endpoint = <&cpu_endpoint1>;
};
};
};
dai-controller {
...
ports {
cpu_port0: port {
cpu_endpoint0: endpoint {
remote-endpoint = <&codec_endpoint0>;
dai-format = "left_j";
...
};
};
cpu_port1: port {
cpu_endpoint1: endpoint {
remote-endpoint = <&codec_endpoint1>;
dai-format = "left_j";
...
};
};
};
};

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@ -0,0 +1,22 @@
Cirrus Logic CS4341 audio DAC
This device supports both I2C and SPI (configured with pin strapping
on the board).
Required properties:
- compatible: "cirrus,cs4341a"
- reg : the I2C address of the device for I2C, the chip select
number for SPI.
For required properties on I2C-bus, please consult
Documentation/devicetree/bindings/i2c/i2c.txt
For required properties on SPI-bus, please consult
Documentation/devicetree/bindings/spi/spi-bus.txt
Example:
codec: cs4341@0 {
#sound-dai-cells = <0>;
compatible = "cirrus,cs4341a";
reg = <0>;
spi-max-frequency = <6000000>;
};

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@ -45,6 +45,23 @@ Optional properties:
- fck_parent : Should contain a valid clock name which will be used as parent
for the McASP fck
Optional GPIO support:
If any McASP pin need to be used as GPIO then the McASP node must have:
...
gpio-controller
#gpio-cells = <2>;
...
When requesting a GPIO, the first parameter is the PIN index in McASP_P*
registers.
For example to request the AXR2 pin of mcasp8:
function-gpios = <&mcasp8 2 0>;
Or to request the ACLKR pin of mcasp8:
function-gpios = <&mcasp8 29 0>;
For generic gpio information, please refer to bindings/gpio/gpio.txt
Example:
mcasp0: mcasp0@1d00000 {

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@ -0,0 +1,32 @@
NXP MICFIL Digital Audio Interface (MICFIL).
The MICFIL digital interface provides a 16-bit audio signal from a PDM
microphone bitstream in a configurable output sampling rate.
Required properties:
- compatible : Compatible list, contains "fsl,imx8mm-micfil"
- reg : Offset and length of the register set for the device.
- interrupts : Contains the micfil interrupts.
- clocks : Must contain an entry for each entry in clock-names.
- clock-names : Must include the "ipg_clk" for register access and
"ipg_clk_app" for internal micfil clock.
- dmas : Generic dma devicetree binding as described in
Documentation/devicetree/bindings/dma/dma.txt.
Example:
micfil: micfil@30080000 {
compatible = "fsl,imx8mm-micfil";
reg = <0x0 0x30080000 0x0 0x10000>;
interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MM_CLK_PDM_IPG>,
<&clk IMX8MM_CLK_PDM_ROOT>;
clock-names = "ipg_clk", "ipg_clk_app";
dmas = <&sdma2 24 26 0x80000000>;
};

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@ -0,0 +1,26 @@
* Audio codec controlled by ChromeOS EC
Google's ChromeOS EC codec is a digital mic codec provided by the
Embedded Controller (EC) and is controlled via a host-command interface.
An EC codec node should only be found as a sub-node of the EC node (see
Documentation/devicetree/bindings/mfd/cros-ec.txt).
Required properties:
- compatible: Must contain "google,cros-ec-codec"
- #sound-dai-cells: Should be 1. The cell specifies number of DAIs.
- max-dmic-gain: A number for maximum gain in dB on digital microphone.
Example:
cros-ec@0 {
compatible = "google,cros-ec-spi";
...
cros_ec_codec: ec-codec {
compatible = "google,cros-ec-codec";
#sound-dai-cells = <1>;
max-dmic-gain = <43>;
};
};

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@ -0,0 +1,20 @@
Ingenic JZ4725B codec controller
Required properties:
- compatible : "ingenic,jz4725b-codec"
- reg : codec registers location and length
- clocks : phandle to the AIC clock.
- clock-names: must be set to "aic".
- #sound-dai-cells: Must be set to 0.
Example:
codec: audio-codec@100200a4 {
compatible = "ingenic,jz4725b-codec";
reg = <0x100200a4 0x8>;
#sound-dai-cells = <0>;
clocks = <&cgu JZ4725B_CLK_AIC>;
clock-names = "aic";
};

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@ -0,0 +1,20 @@
Ingenic JZ4740 codec controller
Required properties:
- compatible : "ingenic,jz4740-codec"
- reg : codec registers location and length
- clocks : phandle to the AIC clock.
- clock-names: must be set to "aic".
- #sound-dai-cells: Must be set to 0.
Example:
codec: audio-codec@10020080 {
compatible = "ingenic,jz4740-codec";
reg = <0x10020080 0x8>;
#sound-dai-cells = <0>;
clocks = <&cgu JZ4740_CLK_AIC>;
clock-names = "aic";
};

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@ -0,0 +1,18 @@
Mediatek MT6358 Audio Codec
The communication between MT6358 and SoC is through Mediatek PMIC wrapper.
For more detail, please visit Mediatek PMIC wrapper documentation.
Must be a child node of PMIC wrapper.
Required properties:
- compatible : "mediatek,mt6358-sound".
- Avdd-supply : power source of AVDD
Example:
mt6358_snd {
compatible = "mediatek,mt6358-sound";
Avdd-supply = <&mt6358_vaud28_reg>;
};

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@ -0,0 +1,36 @@
Mediatek AFE PCM controller for mt8183
Required properties:
- compatible = "mediatek,mt68183-audio";
- reg: register location and size
- interrupts: should contain AFE interrupt
- power-domains: should define the power domain
- clocks: Must contain an entry for each entry in clock-names
- clock-names: should have these clock names:
"infra_sys_audio_clk",
"mtkaif_26m_clk",
"top_mux_audio",
"top_mux_aud_intbus",
"top_sys_pll3_d4",
"top_clk26m_clk";
Example:
afe: mt8183-afe-pcm@11220000 {
compatible = "mediatek,mt8183-audio";
reg = <0 0x11220000 0 0x1000>;
interrupts = <GIC_SPI 161 IRQ_TYPE_LEVEL_LOW>;
power-domains = <&scpsys MT8183_POWER_DOMAIN_AUDIO>;
clocks = <&infrasys CLK_INFRA_AUDIO>,
<&infrasys CLK_INFRA_AUDIO_26M_BCLK>,
<&topckgen CLK_TOP_MUX_AUDIO>,
<&topckgen CLK_TOP_MUX_AUD_INTBUS>,
<&topckgen CLK_TOP_SYSPLL_D2_D4>,
<&clk26m>;
clock-names = "infra_sys_audio_clk",
"mtkaif_26m_clk",
"top_mux_audio",
"top_mux_aud_intbus",
"top_sys_pll_d2_d4",
"top_clk26m_clk";
};

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@ -0,0 +1,24 @@
Mediatek ALSA BT SCO CVSD/MSBC Driver
Required properties:
- compatible = "mediatek,mtk-btcvsd-snd";
- reg: register location and size of PKV and SRAM_BANK2
- interrupts: should contain BTSCO interrupt
- mediatek,infracfg: the phandles of INFRASYS
- mediatek,offset: Array contains of register offset and mask
infra_misc_offset,
infra_conn_bt_cvsd_mask,
cvsd_mcu_read_offset,
cvsd_mcu_write_offset,
cvsd_packet_indicator_offset
Example:
mtk-btcvsd-snd@18000000 {
compatible = "mediatek,mtk-btcvsd-snd";
reg=<0 0x18000000 0 0x1000>,
<0 0x18080000 0 0x8000>;
interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_LOW>;
mediatek,infracfg = <&infrasys>;
mediatek,offset = <0xf00 0x800 0xfd0 0xfd4 0xfd8>;
};

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@ -34,12 +34,12 @@ Required properties with SLIMbus Interface:
Definition: Interrupt names of WCD INTR1 and INTR2
Should be: "intr1", "intr2"
- reset-gpio:
- reset-gpios:
Usage: required
Value type: <String Array>
Definition: Reset gpio line
- qcom,ifd:
- slim-ifc-dev:
Usage: required
Value type: <phandle>
Definition: SLIM interface device
@ -104,13 +104,13 @@ Required properties with SLIMbus Interface:
Value type: <u32>
Definition: Must be 1
codec@1{
audio-codec@1{
compatible = "slim217,1a0";
reg = <1 0>;
interrupts = <&msmgpio 54 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "intr2"
reset-gpio = <&msmgpio 64 0>;
qcom,ifd = <&wc9335_ifd>;
reset-gpios = <&msmgpio 64 0>;
slim-ifc-dev = <&wc9335_ifd>;
clock-names = "mclk", "native";
clocks = <&rpmcc RPM_SMD_DIV_CLK1>,
<&rpmcc RPM_SMD_BB_CLK1>;

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@ -0,0 +1,23 @@
* Rockchip Rk3328 internal codec
Required properties:
- compatible: "rockchip,rk3328-codec"
- reg: physical base address of the controller and length of memory mapped
region.
- rockchip,grf: the phandle of the syscon node for GRF register.
- clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names.
- clock-names: should be "pclk".
- spk-depop-time-ms: speak depop time msec.
Example for rk3328 internal codec:
codec: codec@ff410000 {
compatible = "rockchip,rk3328-codec";
reg = <0x0 0xff410000 0x0 0x1000>;
rockchip,grf = <&grf>;
clocks = <&cru PCLK_ACODEC>;
clock-names = "pclk";
spk-depop-time-ms = 100;
status = "disabled";
};

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@ -37,6 +37,15 @@ VDDIO 1.8V 2.5V 3.3V
2 = 3.33 mA 5.74 mA 8.03 mA
3 = 4.99 mA 8.61 mA 12.05 mA
- sclk-strength: the SCLK pad strength. Possible values are:
0, 1, 2 and 3 as per the table below:
VDDIO 1.8V 2.5V 3.3V
0 = Disable
1 = 1.66 mA 2.87 mA 4.02 mA
2 = 3.33 mA 5.74 mA 8.03 mA
3 = 4.99 mA 8.61 mA 12.05 mA
Example:
sgtl5000: codec@a {

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@ -1,94 +0,0 @@
ASoC Simple SCU Sound Card
Simple SCU Sound Card is "Simple Sound Card" + "ALSA DPCM".
For example, you can use this driver if you want to exchange sampling rate convert,
Mixing, etc...
Required properties:
- compatible : "simple-scu-audio-card"
"renesas,rsrc-card"
Optional properties:
- simple-audio-card,name : see simple-audio-card.txt
- simple-audio-card,cpu : see simple-audio-card.txt
- simple-audio-card,codec : see simple-audio-card.txt
Optional subnode properties:
- simple-audio-card,format : see simple-audio-card.txt
- simple-audio-card,frame-master : see simple-audio-card.txt
- simple-audio-card,bitclock-master : see simple-audio-card.txt
- simple-audio-card,bitclock-inversion : see simple-audio-card.txt
- simple-audio-card,frame-inversion : see simple-audio-card.txt
- simple-audio-card,convert-rate : platform specified sampling rate convert
- simple-audio-card,convert-channels : platform specified converted channel size (2 - 8 ch)
- simple-audio-card,prefix : see routing
- simple-audio-card,widgets : Please refer to widgets.txt.
- simple-audio-card,routing : A list of the connections between audio components.
Each entry is a pair of strings, the first being the connection's sink,
the second being the connection's source. Valid names for sources.
use audio-prefix if some components is using same sink/sources naming.
it can be used if compatible was "renesas,rsrc-card";
Required CPU/CODEC subnodes properties:
- sound-dai : see simple-audio-card.txt
Optional CPU/CODEC subnodes properties:
- clocks / system-clock-frequency : see simple-audio-card.txt
Example 1. Sampling Rate Conversion
sound {
compatible = "simple-scu-audio-card";
simple-audio-card,name = "rsnd-ak4643";
simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&sndcodec>;
simple-audio-card,frame-master = <&sndcodec>;
simple-audio-card,convert-rate = <48000>;
simple-audio-card,prefix = "ak4642";
simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
"DAI0 Capture", "ak4642 Capture";
sndcpu: simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
sndcodec: simple-audio-card,codec {
sound-dai = <&ak4643>;
system-clock-frequency = <11289600>;
};
};
Example 2. 2 CPU 1 Codec (Mixing)
sound {
compatible = "simple-scu-audio-card";
simple-audio-card,name = "rsnd-ak4643";
simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&dpcmcpu>;
simple-audio-card,frame-master = <&dpcmcpu>;
simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
"ak4642 Playback", "DAI1 Playback";
dpcmcpu: cpu@0 {
sound-dai = <&rcar_sound 0>;
};
cpu@1 {
sound-dai = <&rcar_sound 1>;
};
codec {
prefix = "ak4642";
sound-dai = <&ak4643>;
clocks = <&audio_clock>;
};
};

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@ -0,0 +1,23 @@
* Spreadtrum DMA platfrom bindings
Required properties:
- compatible: Should be "sprd,pcm-platform".
- dmas: Specify the list of DMA controller phandle and DMA request line ordered pairs.
- dma-names: Identifier string for each DMA request line in the dmas property.
These strings correspond 1:1 with the ordered pairs in dmas.
Example:
audio_platform:platform@0 {
compatible = "sprd,pcm-platform";
dmas = <&agcp_dma 1 1>, <&agcp_dma 2 2>,
<&agcp_dma 3 3>, <&agcp_dma 4 4>,
<&agcp_dma 5 5>, <&agcp_dma 6 6>,
<&agcp_dma 7 7>, <&agcp_dma 8 8>,
<&agcp_dma 9 9>, <&agcp_dma 10 10>;
dma-names = "normal_p_l", "normal_p_r",
"normal_c_l", "normal_c_r",
"voice_c", "fast_p",
"loop_c", "loop_p",
"voip_c", "voip_p";
};

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@ -0,0 +1,29 @@
Device-Tree bindings for Xilinx PL audio formatter
The IP core supports DMA, data formatting(AES<->PCM conversion)
of audio samples.
Required properties:
- compatible: "xlnx,audio-formatter-1.0"
- interrupt-names: Names specified to list of interrupts in same
order mentioned under "interrupts".
List of supported interrupt names are:
"irq_mm2s" : interrupt from MM2S block
"irq_s2mm" : interrupt from S2MM block
- interrupts-parent: Phandle for interrupt controller.
- interrupts: List of Interrupt numbers.
- reg: Base address and size of the IP core instance.
- clock-names: List of input clocks.
Required elements: "s_axi_lite_aclk", "aud_mclk"
- clocks: Input clock specifier. Refer to common clock bindings.
Example:
audio_ss_0_audio_formatter_0: audio_formatter@80010000 {
compatible = "xlnx,audio-formatter-1.0";
interrupt-names = "irq_mm2s", "irq_s2mm";
interrupt-parent = <&gic>;
interrupts = <0 104 4>, <0 105 4>;
reg = <0x0 0x80010000 0x0 0x1000>;
clock-names = "s_axi_lite_aclk", "aud_mclk";
clocks = <&clk 71>, <&clk_wiz_1 0>;
};

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@ -0,0 +1,28 @@
Device-Tree bindings for Xilinx SPDIF IP
The IP supports playback and capture of SPDIF audio
Required properties:
- compatible: "xlnx,spdif-2.0"
- clock-names: List of input clocks.
Required elements: "s_axi_aclk", "aud_clk_i"
- clocks: Input clock specifier. Refer to common clock bindings.
- reg: Base address and address length of the IP core instance.
- interrupts-parent: Phandle for interrupt controller.
- interrupts: List of Interrupt numbers.
- xlnx,spdif-mode: 0 :- receiver mode
1 :- transmitter mode
- xlnx,aud_clk_i: input audio clock value.
Example:
spdif_0: spdif@80010000 {
clock-names = "aud_clk_i", "s_axi_aclk";
clocks = <&misc_clk_0>, <&clk 71>;
compatible = "xlnx,spdif-2.0";
interrupt-names = "spdif_interrupt";
interrupt-parent = <&gic>;
interrupts = <0 91 4>;
reg = <0x0 0x80010000 0x0 0x10000>;
xlnx,spdif-mode = <1>;
xlnx,aud_clk_i = <49152913>;
};

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@ -124,11 +124,11 @@ struct bus_attribute {
ssize_t (*store)(struct bus_type *, const char * buf, size_t count);
};
Bus drivers can export attributes using the BUS_ATTR macro that works
similarly to the DEVICE_ATTR macro for devices. For example, a definition
like this:
Bus drivers can export attributes using the BUS_ATTR_RW macro that works
similarly to the DEVICE_ATTR_RW macro for devices. For example, a
definition like this:
static BUS_ATTR(debug,0644,show_debug,store_debug);
static BUS_ATTR_RW(debug);
is equivalent to declaring:

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@ -163,6 +163,14 @@ C. Boot options
be preserved until there actually is some text is output to the console.
This option causes fbcon to bind immediately to the fbdev device.
7. fbcon=logo-pos:<location>
The only possible 'location' is 'center' (without quotes), and when
given, the bootup logo is moved from the default top-left corner
location to the center of the framebuffer. If more than one logo is
displayed due to multiple CPUs, the collected line of logos is moved
as a whole.
C. Attaching, Detaching and Unloading
Before going on to how to attach, detach and unload the framebuffer console, an

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@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | TODO |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

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@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

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@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | ok |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | ok |
| csky: | ok |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | ok |
| hexagon: | ok |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | TODO |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | TODO |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

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@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | TODO |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | ok |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

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@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | ok |
| c6x: | TODO |
| csky: | ok |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | TODO |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -34,6 +34,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | .. |
| arm64: | ok |
| c6x: | .. |
| csky: | .. |
| h8300: | .. |
| hexagon: | .. |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | ok |
| csky: | ok |
| h8300: | ok |
| hexagon: | ok |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | .. |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | ok |
| c6x: | ok |
| csky: | ok |
| h8300: | ok |
| hexagon: | ok |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | TODO |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | .. |
| csky: | .. |
| h8300: | .. |
| hexagon: | .. |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | TODO |
| c6x: | .. |
| csky: | TODO |
| h8300: | .. |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | TODO |
| arm64: | TODO |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -11,6 +11,7 @@
| arm: | .. |
| arm64: | ok |
| c6x: | .. |
| csky: | .. |
| h8300: | .. |
| hexagon: | .. |
| ia64: | ok |

View File

@ -11,6 +11,7 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| csky: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |

View File

@ -344,7 +344,9 @@ struct bus_attribute {
Declaring:
BUS_ATTR(_name, _mode, _show, _store)
static BUS_ATTR_RW(name);
static BUS_ATTR_RO(name);
static BUS_ATTR_WO(name);
Creation/Removal:

View File

@ -11,19 +11,19 @@ Contents:
batman-adv
can
can_ucan_protocol
dpaa2/index
e100
e1000
e1000e
fm10k
igb
igbvf
ixgb
ixgbe
ixgbevf
i40e
iavf
ice
device_drivers/freescale/dpaa2/index
device_drivers/intel/e100
device_drivers/intel/e1000
device_drivers/intel/e1000e
device_drivers/intel/fm10k
device_drivers/intel/igb
device_drivers/intel/igbvf
device_drivers/intel/ixgb
device_drivers/intel/ixgbe
device_drivers/intel/ixgbevf
device_drivers/intel/i40e
device_drivers/intel/iavf
device_drivers/intel/ice
kapi
z8530book
msg_zerocopy

View File

@ -1000,51 +1000,6 @@ The kernel interface functions are as follows:
size should be set when the call is begun. tx_total_len may not be less
than zero.
(*) Check to see the completion state of a call so that the caller can assess
whether it needs to be retried.
enum rxrpc_call_completion {
RXRPC_CALL_SUCCEEDED,
RXRPC_CALL_REMOTELY_ABORTED,
RXRPC_CALL_LOCALLY_ABORTED,
RXRPC_CALL_LOCAL_ERROR,
RXRPC_CALL_NETWORK_ERROR,
};
int rxrpc_kernel_check_call(struct socket *sock, struct rxrpc_call *call,
enum rxrpc_call_completion *_compl,
u32 *_abort_code);
On return, -EINPROGRESS will be returned if the call is still ongoing; if
it is finished, *_compl will be set to indicate the manner of completion,
*_abort_code will be set to any abort code that occurred. 0 will be
returned on a successful completion, -ECONNABORTED will be returned if the
client failed due to a remote abort and anything else will return an
appropriate error code.
The caller should look at this information to decide if it's worth
retrying the call.
(*) Retry a client call.
int rxrpc_kernel_retry_call(struct socket *sock,
struct rxrpc_call *call,
struct sockaddr_rxrpc *srx,
struct key *key);
This attempts to partially reinitialise a call and submit it again while
reusing the original call's Tx queue to avoid the need to repackage and
re-encrypt the data to be sent. call indicates the call to retry, srx the
new address to send it to and key the encryption key to use for signing or
encrypting the packets.
For this to work, the first Tx data packet must still be in the transmit
queue, and currently this is only permitted for local and network errors
and the call must not have been aborted. Any partially constructed Tx
packet is left as is and can continue being filled afterwards.
It returns 0 if the call was requeued and an error otherwise.
(*) Get call RTT.
u64 rxrpc_kernel_get_rtt(struct socket *sock, struct rxrpc_call *call);

View File

@ -336,7 +336,26 @@ time client replies ACK, this socket will get another chance to move
to the accept queue.
TCP Fast Open
* TcpEstabResets
Defined in `RFC1213 tcpEstabResets`_.
.. _RFC1213 tcpEstabResets: https://tools.ietf.org/html/rfc1213#page-48
* TcpAttemptFails
Defined in `RFC1213 tcpAttemptFails`_.
.. _RFC1213 tcpAttemptFails: https://tools.ietf.org/html/rfc1213#page-48
* TcpOutRsts
Defined in `RFC1213 tcpOutRsts`_. The RFC says this counter indicates
the 'segments sent containing the RST flag', but in linux kernel, this
couner indicates the segments kerenl tried to send. The sending
process might be failed due to some errors (e.g. memory alloc failed).
.. _RFC1213 tcpOutRsts: https://tools.ietf.org/html/rfc1213#page-52
TCP Fast Path
============
When kernel receives a TCP packet, it has two paths to handler the
packet, one is fast path, another is slow path. The comment in kernel
@ -383,8 +402,6 @@ increase 1.
TCP abort
========
* TcpExtTCPAbortOnData
It means TCP layer has data in flight, but need to close the
connection. So TCP layer sends a RST to the other side, indicate the
@ -545,7 +562,6 @@ packet yet, the sender would know packet 4 is out of order. The TCP
stack of kernel will increase TcpExtTCPSACKReorder for both of the
above scenarios.
DSACK
=====
The DSACK is defined in `RFC2883`_. The receiver uses DSACK to report
@ -566,13 +582,63 @@ The TCP stack receives an out of order duplicate packet, so it sends a
DSACK to the sender.
* TcpExtTCPDSACKRecv
The TCP stack receives a DSACK, which indicate an acknowledged
The TCP stack receives a DSACK, which indicates an acknowledged
duplicate packet is received.
* TcpExtTCPDSACKOfoRecv
The TCP stack receives a DSACK, which indicate an out of order
duplicate packet is received.
invalid SACK and DSACK
====================
When a SACK (or DSACK) block is invalid, a corresponding counter would
be updated. The validation method is base on the start/end sequence
number of the SACK block. For more details, please refer the comment
of the function tcp_is_sackblock_valid in the kernel source code. A
SACK option could have up to 4 blocks, they are checked
individually. E.g., if 3 blocks of a SACk is invalid, the
corresponding counter would be updated 3 times. The comment of the
`Add counters for discarded SACK blocks`_ patch has additional
explaination:
.. _Add counters for discarded SACK blocks: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=18f02545a9a16c9a89778b91a162ad16d510bb32
* TcpExtTCPSACKDiscard
This counter indicates how many SACK blocks are invalid. If the invalid
SACK block is caused by ACK recording, the TCP stack will only ignore
it and won't update this counter.
* TcpExtTCPDSACKIgnoredOld and TcpExtTCPDSACKIgnoredNoUndo
When a DSACK block is invalid, one of these two counters would be
updated. Which counter will be updated depends on the undo_marker flag
of the TCP socket. If the undo_marker is not set, the TCP stack isn't
likely to re-transmit any packets, and we still receive an invalid
DSACK block, the reason might be that the packet is duplicated in the
middle of the network. In such scenario, TcpExtTCPDSACKIgnoredNoUndo
will be updated. If the undo_marker is set, TcpExtTCPDSACKIgnoredOld
will be updated. As implied in its name, it might be an old packet.
SACK shift
=========
The linux networking stack stores data in sk_buff struct (skb for
short). If a SACK block acrosses multiple skb, the TCP stack will try
to re-arrange data in these skb. E.g. if a SACK block acknowledges seq
10 to 15, skb1 has seq 10 to 13, skb2 has seq 14 to 20. The seq 14 and
15 in skb2 would be moved to skb1. This operation is 'shift'. If a
SACK block acknowledges seq 10 to 20, skb1 has seq 10 to 13, skb2 has
seq 14 to 20. All data in skb2 will be moved to skb1, and skb2 will be
discard, this operation is 'merge'.
* TcpExtTCPSackShifted
A skb is shifted
* TcpExtTCPSackMerged
A skb is merged
* TcpExtTCPSackShiftFallback
A skb should be shifted or merged, but the TCP stack doesn't do it for
some reasons.
TCP out of order
===============
* TcpExtTCPOFOQueue
@ -662,6 +728,60 @@ unacknowledged number (more strict than `RFC 5961 section 5.2`_).
.. _RFC 5961 section 4.2: https://tools.ietf.org/html/rfc5961#page-9
.. _RFC 5961 section 5.2: https://tools.ietf.org/html/rfc5961#page-11
TCP receive window
=================
* TcpExtTCPWantZeroWindowAdv
Depending on current memory usage, the TCP stack tries to set receive
window to zero. But the receive window might still be a no-zero
value. For example, if the previous window size is 10, and the TCP
stack receives 3 bytes, the current window size would be 7 even if the
window size calculated by the memory usage is zero.
* TcpExtTCPToZeroWindowAdv
The TCP receive window is set to zero from a no-zero value.
* TcpExtTCPFromZeroWindowAdv
The TCP receive window is set to no-zero value from zero.
Delayed ACK
==========
The TCP Delayed ACK is a technique which is used for reducing the
packet count in the network. For more details, please refer the
`Delayed ACK wiki`_
.. _Delayed ACK wiki: https://en.wikipedia.org/wiki/TCP_delayed_acknowledgment
* TcpExtDelayedACKs
A delayed ACK timer expires. The TCP stack will send a pure ACK packet
and exit the delayed ACK mode.
* TcpExtDelayedACKLocked
A delayed ACK timer expires, but the TCP stack can't send an ACK
immediately due to the socket is locked by a userspace program. The
TCP stack will send a pure ACK later (after the userspace program
unlock the socket). When the TCP stack sends the pure ACK later, the
TCP stack will also update TcpExtDelayedACKs and exit the delayed ACK
mode.
* TcpExtDelayedACKLost
It will be updated when the TCP stack receives a packet which has been
ACKed. A Delayed ACK loss might cause this issue, but it would also be
triggered by other reasons, such as a packet is duplicated in the
network.
Tail Loss Probe (TLP)
===================
TLP is an algorithm which is used to detect TCP packet loss. For more
details, please refer the `TLP paper`_.
.. _TLP paper: https://tools.ietf.org/html/draft-dukkipati-tcpm-tcp-loss-probe-01
* TcpExtTCPLossProbes
A TLP probe packet is sent.
* TcpExtTCPLossProbeRecovery
A packet loss is detected and recovered by TLP.
examples
=======

View File

@ -417,7 +417,7 @@ is again deprecated and ts[2] holds a hardware timestamp if set.
Hardware time stamping must also be initialized for each device driver
that is expected to do hardware time stamping. The parameter is defined in
/include/linux/net_tstamp.h as:
include/uapi/linux/net_tstamp.h as:
struct hwtstamp_config {
int flags; /* no flags defined right now, must be zero */
@ -487,7 +487,7 @@ enum {
HWTSTAMP_FILTER_PTP_V1_L4_EVENT,
/* for the complete list of values, please check
* the include file /include/linux/net_tstamp.h
* the include file include/uapi/linux/net_tstamp.h
*/
};

View File

@ -165,7 +165,7 @@ Do some work...
The same can also be done from an application program.
Disable specific CPU's specific idle state from cpuidle sysfs (see
Documentation/cpuidle/sysfs.txt):
Documentation/admin-guide/pm/cpuidle.rst):
# echo 1 > /sys/devices/system/cpu/cpu$cpu/cpuidle/state$state/disable

View File

@ -242,6 +242,6 @@ References
==========
.. [white-paper] http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2013/12/AMD_Memory_Encryption_Whitepaper_v7-Public.pdf
.. [api-spec] http://support.amd.com/TechDocs/55766_SEV-KM%20API_Specification.pdf
.. [api-spec] http://support.amd.com/TechDocs/55766_SEV-KM_API_Specification.pdf
.. [amd-apm] http://support.amd.com/TechDocs/24593.pdf (section 15.34)
.. [kvm-forum] http://www.linux-kvm.org/images/7/74/02x08A-Thomas_Lendacky-AMDs_Virtualizatoin_Memory_Encryption_Technology.pdf

View File

@ -9,7 +9,7 @@ Fenghua Yu <fenghua.yu@intel.com>
Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>
This feature is enabled by the CONFIG_RESCTRL and the X86 /proc/cpuinfo
This feature is enabled by the CONFIG_X86_RESCTRL and the x86 /proc/cpuinfo
flag bits:
RDT (Resource Director Technology) Allocation - "rdt_a"
CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"

View File

@ -3052,8 +3052,8 @@ F: include/linux/bcm963xx_nvram.h
F: include/linux/bcm963xx_tag.h
BROADCOM BNX2 GIGABIT ETHERNET DRIVER
M: Rasesh Mody <rasesh.mody@cavium.com>
M: Dept-GELinuxNICDev@cavium.com
M: Rasesh Mody <rmody@marvell.com>
M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/bnx2.*
@ -3072,9 +3072,9 @@ S: Supported
F: drivers/scsi/bnx2i/
BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
M: Ariel Elior <ariel.elior@cavium.com>
M: Sudarsana Kalluru <sudarsana.kalluru@cavium.com>
M: everest-linux-l2@cavium.com
M: Ariel Elior <aelior@marvell.com>
M: Sudarsana Kalluru <skalluru@marvell.com>
M: GR-everest-linux-l2@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/bnx2x/
@ -3249,9 +3249,9 @@ S: Supported
F: drivers/scsi/bfa/
BROCADE BNA 10 GIGABIT ETHERNET DRIVER
M: Rasesh Mody <rasesh.mody@cavium.com>
M: Sudarsana Kalluru <sudarsana.kalluru@cavium.com>
M: Dept-GELinuxNICDev@cavium.com
M: Rasesh Mody <rmody@marvell.com>
M: Sudarsana Kalluru <skalluru@marvell.com>
M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/brocade/bna/
@ -3471,10 +3471,9 @@ F: drivers/i2c/busses/i2c-octeon*
F: drivers/i2c/busses/i2c-thunderx*
CAVIUM LIQUIDIO NETWORK DRIVER
M: Derek Chickles <derek.chickles@caviumnetworks.com>
M: Satanand Burla <satananda.burla@caviumnetworks.com>
M: Felix Manlunas <felix.manlunas@caviumnetworks.com>
M: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
M: Derek Chickles <dchickles@marvell.com>
M: Satanand Burla <sburla@marvell.com>
M: Felix Manlunas <fmanlunas@marvell.com>
L: netdev@vger.kernel.org
W: http://www.cavium.com
S: Supported
@ -3688,6 +3687,14 @@ N: cros_ec
N: cros-ec
F: drivers/power/supply/cros_usbpd-charger.c
CHROMEOS EC CODEC DRIVER
M: Cheng-Yi Chiang <cychiang@chromium.org>
S: Maintained
R: Enric Balletbo i Serra <enric.balletbo@collabora.com>
R: Guenter Roeck <groeck@chromium.org>
F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
F: sound/soc/codecs/cros_ec_codec.*
CIRRUS LOGIC AUDIO CODEC DRIVERS
M: Brian Austin <brian.austin@cirrus.com>
M: Paul Handrigan <Paul.Handrigan@cirrus.com>
@ -3951,7 +3958,7 @@ L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/ti/cpmac.c
CPU FREQUENCY DRIVERS
CPU FREQUENCY SCALING FRAMEWORK
M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
M: Viresh Kumar <viresh.kumar@linaro.org>
L: linux-pm@vger.kernel.org
@ -3959,6 +3966,8 @@ S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
T: git git://git.linaro.org/people/vireshk/linux.git (For ARM Updates)
B: https://bugzilla.kernel.org
F: Documentation/admin-guide/pm/cpufreq.rst
F: Documentation/admin-guide/pm/intel_pstate.rst
F: Documentation/cpu-freq/
F: Documentation/devicetree/bindings/cpufreq/
F: drivers/cpufreq/
@ -3977,6 +3986,7 @@ F: drivers/cpufreq/arm_big_little.c
CPU POWER MONITORING SUBSYSTEM
M: Thomas Renninger <trenn@suse.com>
M: Shuah Khan <shuah@kernel.org>
M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-pm@vger.kernel.org
S: Maintained
F: tools/power/cpupower/
@ -4006,13 +4016,14 @@ S: Supported
F: drivers/cpuidle/cpuidle-exynos.c
F: arch/arm/mach-exynos/pm.c
CPUIDLE DRIVERS
CPU IDLE TIME MANAGEMENT FRAMEWORK
M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
M: Daniel Lezcano <daniel.lezcano@linaro.org>
L: linux-pm@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
B: https://bugzilla.kernel.org
F: Documentation/admin-guide/pm/cpuidle.rst
F: drivers/cpuidle/*
F: include/linux/cpuidle.h
@ -6143,7 +6154,7 @@ FREESCALE SOC SOUND DRIVERS
M: Timur Tabi <timur@kernel.org>
M: Nicolin Chen <nicoleotsuka@gmail.com>
M: Xiubo Li <Xiubo.Lee@gmail.com>
R: Fabio Estevam <fabio.estevam@nxp.com>
R: Fabio Estevam <festevam@gmail.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
@ -8256,6 +8267,7 @@ F: include/uapi/linux/sunrpc/
KERNEL SELFTEST FRAMEWORK
M: Shuah Khan <shuah@kernel.org>
M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-kselftest@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
Q: https://patchwork.kernel.org/project/linux-kselftest/list/
@ -10686,9 +10698,9 @@ S: Maintained
F: drivers/net/netdevsim/*
NETXEN (1/10) GbE SUPPORT
M: Manish Chopra <manish.chopra@cavium.com>
M: Rahul Verma <rahul.verma@cavium.com>
M: Dept-GELinuxNICDev@cavium.com
M: Manish Chopra <manishc@marvell.com>
M: Rahul Verma <rahulv@marvell.com>
M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/netxen/
@ -10889,7 +10901,7 @@ F: include/linux/nvmem-consumer.h
F: include/linux/nvmem-provider.h
NXP SGTL5000 DRIVER
M: Fabio Estevam <fabio.estevam@nxp.com>
M: Fabio Estevam <festevam@gmail.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/sound/sgtl5000.txt
@ -12472,8 +12484,8 @@ S: Supported
F: drivers/scsi/qedi/
QLOGIC QL4xxx ETHERNET DRIVER
M: Ariel Elior <Ariel.Elior@cavium.com>
M: everest-linux-l2@cavium.com
M: Ariel Elior <aelior@marvell.com>
M: GR-everest-linux-l2@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qed/
@ -12481,8 +12493,8 @@ F: include/linux/qed/
F: drivers/net/ethernet/qlogic/qede/
QLOGIC QL4xxx RDMA DRIVER
M: Michal Kalderon <Michal.Kalderon@cavium.com>
M: Ariel Elior <Ariel.Elior@cavium.com>
M: Michal Kalderon <mkalderon@marvell.com>
M: Ariel Elior <aelior@marvell.com>
L: linux-rdma@vger.kernel.org
S: Supported
F: drivers/infiniband/hw/qedr/
@ -12502,7 +12514,7 @@ F: Documentation/scsi/LICENSE.qla2xxx
F: drivers/scsi/qla2xxx/
QLOGIC QLA3XXX NETWORK DRIVER
M: Dept-GELinuxNICDev@cavium.com
M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: Documentation/networking/device_drivers/qlogic/LICENSE.qla3xxx
@ -12516,16 +12528,16 @@ F: Documentation/scsi/LICENSE.qla4xxx
F: drivers/scsi/qla4xxx/
QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
M: Shahed Shaikh <Shahed.Shaikh@cavium.com>
M: Manish Chopra <manish.chopra@cavium.com>
M: Dept-GELinuxNICDev@cavium.com
M: Shahed Shaikh <shshaikh@marvell.com>
M: Manish Chopra <manishc@marvell.com>
M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qlcnic/
QLOGIC QLGE 10Gb ETHERNET DRIVER
M: Manish Chopra <manish.chopra@cavium.com>
M: Dept-GELinuxNICDev@cavium.com
M: Manish Chopra <manishc@marvell.com>
M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qlge/
@ -13820,8 +13832,9 @@ F: drivers/media/mmc/siano/
SIFIVE DRIVERS
M: Palmer Dabbelt <palmer@sifive.com>
M: Paul Walmsley <paul.walmsley@sifive.com>
L: linux-riscv@lists.infradead.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux.git
T: git git://github.com/sifive/riscv-linux.git
S: Supported
K: sifive
N: sifive
@ -14432,6 +14445,11 @@ M: Florian Schilhabel <florian.c.schilhabel@googlemail.com>.
S: Odd Fixes
F: drivers/staging/rtl8712/
STAGING - REALTEK RTL8188EU DRIVERS
M: Larry Finger <Larry.Finger@lwfinger.net>
S: Odd Fixes
F: drivers/staging/rtl8188eu/
STAGING - SILICON MOTION SM750 FRAME BUFFER DRIVER
M: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
M: Teddy Wang <teddy.wang@siliconmotion.com>
@ -15802,7 +15820,6 @@ M: Alan Stern <stern@rowland.harvard.edu>
L: linux-usb@vger.kernel.org
L: usb-storage@lists.one-eyed-alien.net
S: Maintained
W: http://www.one-eyed-alien.net/~mdharm/linux-usb/
F: drivers/usb/storage/
USB MIDI DRIVER
@ -15834,6 +15851,7 @@ F: drivers/usb/common/usb-otg-fsm.c
USB OVER IP DRIVER
M: Valentina Manea <valentina.manea.m@gmail.com>
M: Shuah Khan <shuah@kernel.org>
M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-usb@vger.kernel.org
S: Maintained
F: Documentation/usb/usbip_protocol.txt

View File

@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 0
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc4
NAME = Shy Crocodile
# *DOCUMENTATION*
@ -955,6 +955,7 @@ ifdef CONFIG_STACK_VALIDATION
endif
endif
PHONY += prepare0
ifeq ($(KBUILD_EXTMOD),)
core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/
@ -1061,8 +1062,7 @@ scripts: scripts_basic scripts_dtc
# archprepare is used in arch Makefiles and when processed asm symlink,
# version.h and scripts_basic is processed / created.
# Listed in dependency order
PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
PHONY += prepare archprepare prepare1 prepare2 prepare3
# prepare3 is used to check if we are building in a separate output directory,
# and if so do:
@ -1360,11 +1360,11 @@ mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
mrproper-dirs := $(addprefix _mrproper_,scripts)
PHONY += $(mrproper-dirs) mrproper archmrproper
PHONY += $(mrproper-dirs) mrproper
$(mrproper-dirs):
$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
mrproper: clean archmrproper $(mrproper-dirs)
mrproper: clean $(mrproper-dirs)
$(call cmd,rmdirs)
$(call cmd,rmfiles)

View File

@ -3,23 +3,19 @@ generic-y += bugs.h
generic-y += compat.h
generic-y += device.h
generic-y += div64.h
generic-y += dma-mapping.h
generic-y += emergency-restart.h
generic-y += extable.h
generic-y += fb.h
generic-y += ftrace.h
generic-y += hardirq.h
generic-y += hw_irq.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kmap_types.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
generic-y += msi.h
generic-y += parport.h
generic-y += pci.h
generic-y += percpu.h
generic-y += preempt.h
generic-y += topology.h

View File

@ -216,6 +216,14 @@ struct bcr_fp_arcv2 {
#endif
};
struct bcr_actionpoint {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:21, min:1, num:2, ver:8;
#else
unsigned int ver:8, num:2, min:1, pad:21;
#endif
};
#include <soc/arc/timers.h>
struct bcr_bpu_arcompact {
@ -283,7 +291,7 @@ struct cpuinfo_arc_cache {
};
struct cpuinfo_arc_bpu {
unsigned int ver, full, num_cache, num_pred;
unsigned int ver, full, num_cache, num_pred, ret_stk;
};
struct cpuinfo_arc_ccm {
@ -302,7 +310,7 @@ struct cpuinfo_arc {
struct {
unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2,
fpu_sp:1, fpu_dp:1, dual:1, dual_enb:1, pad2:4,
debug:1, ap:1, smart:1, rtt:1, pad3:4,
ap_num:4, ap_full:1, smart:1, rtt:1, pad3:1,
timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
} extn;
struct bcr_mpy extn_mpy;

View File

@ -340,7 +340,7 @@ static inline __attribute__ ((const)) int __fls(unsigned long x)
/*
* __ffs: Similar to ffs, but zero based (0-31)
*/
static inline __attribute__ ((const)) int __ffs(unsigned long word)
static inline __attribute__ ((const)) unsigned long __ffs(unsigned long word)
{
if (!word)
return word;
@ -400,9 +400,9 @@ static inline __attribute__ ((const)) int ffs(unsigned long x)
/*
* __ffs: Similar to ffs, but zero based (0-31)
*/
static inline __attribute__ ((const)) int __ffs(unsigned long x)
static inline __attribute__ ((const)) unsigned long __ffs(unsigned long x)
{
int n;
unsigned long n;
asm volatile(
" ffs.f %0, %1 \n" /* 0:31; 31(Z) if src 0 */

View File

@ -103,7 +103,8 @@ static const char * const arc_pmu_ev_hw_map[] = {
/* counts condition */
[PERF_COUNT_HW_INSTRUCTIONS] = "iall",
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmp", /* Excludes ZOL jumps */
/* All jump instructions that are taken */
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmptak",
[PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */
#ifdef CONFIG_ISA_ARCV2
[PERF_COUNT_HW_BRANCH_MISSES] = "bpmp",

View File

@ -1,15 +1,10 @@
/*
* Linux performance counter support for ARC700 series
*
* Copyright (C) 2013-2015 Synopsys, Inc. (www.synopsys.com)
*
* This code is inspired by the perf support of various other architectures.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
// SPDX-License-Identifier: GPL-2.0+
//
// Linux performance counter support for ARC CPUs.
// This code is inspired by the perf support of various other architectures.
//
// Copyright (C) 2013-2018 Synopsys, Inc. (www.synopsys.com)
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/module.h>
@ -19,12 +14,31 @@
#include <asm/arcregs.h>
#include <asm/stacktrace.h>
/* HW holds 8 symbols + one for null terminator */
#define ARCPMU_EVENT_NAME_LEN 9
enum arc_pmu_attr_groups {
ARCPMU_ATTR_GR_EVENTS,
ARCPMU_ATTR_GR_FORMATS,
ARCPMU_NR_ATTR_GR
};
struct arc_pmu_raw_event_entry {
char name[ARCPMU_EVENT_NAME_LEN];
};
struct arc_pmu {
struct pmu pmu;
unsigned int irq;
int n_counters;
int n_events;
u64 max_period;
int ev_hw_idx[PERF_COUNT_ARC_HW_MAX];
struct arc_pmu_raw_event_entry *raw_entry;
struct attribute **attrs;
struct perf_pmu_events_attr *attr;
const struct attribute_group *attr_groups[ARCPMU_NR_ATTR_GR + 1];
};
struct arc_pmu_cpu {
@ -49,6 +63,7 @@ static int callchain_trace(unsigned int addr, void *data)
{
struct arc_callchain_trace *ctrl = data;
struct perf_callchain_entry_ctx *entry = ctrl->perf_stuff;
perf_callchain_store(entry, addr);
if (ctrl->depth++ < 3)
@ -57,8 +72,8 @@ static int callchain_trace(unsigned int addr, void *data)
return -1;
}
void
perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
struct pt_regs *regs)
{
struct arc_callchain_trace ctrl = {
.depth = 0,
@ -68,8 +83,8 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re
arc_unwind_core(NULL, regs, callchain_trace, &ctrl);
}
void
perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
struct pt_regs *regs)
{
/*
* User stack can't be unwound trivially with kernel dwarf unwinder
@ -82,10 +97,10 @@ static struct arc_pmu *arc_pmu;
static DEFINE_PER_CPU(struct arc_pmu_cpu, arc_pmu_cpu);
/* read counter #idx; note that counter# != event# on ARC! */
static uint64_t arc_pmu_read_counter(int idx)
static u64 arc_pmu_read_counter(int idx)
{
uint32_t tmp;
uint64_t result;
u32 tmp;
u64 result;
/*
* ARC supports making 'snapshots' of the counters, so we don't
@ -94,7 +109,7 @@ static uint64_t arc_pmu_read_counter(int idx)
write_aux_reg(ARC_REG_PCT_INDEX, idx);
tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
write_aux_reg(ARC_REG_PCT_CONTROL, tmp | ARC_REG_PCT_CONTROL_SN);
result = (uint64_t) (read_aux_reg(ARC_REG_PCT_SNAPH)) << 32;
result = (u64) (read_aux_reg(ARC_REG_PCT_SNAPH)) << 32;
result |= read_aux_reg(ARC_REG_PCT_SNAPL);
return result;
@ -103,9 +118,9 @@ static uint64_t arc_pmu_read_counter(int idx)
static void arc_perf_event_update(struct perf_event *event,
struct hw_perf_event *hwc, int idx)
{
uint64_t prev_raw_count = local64_read(&hwc->prev_count);
uint64_t new_raw_count = arc_pmu_read_counter(idx);
int64_t delta = new_raw_count - prev_raw_count;
u64 prev_raw_count = local64_read(&hwc->prev_count);
u64 new_raw_count = arc_pmu_read_counter(idx);
s64 delta = new_raw_count - prev_raw_count;
/*
* We aren't afraid of hwc->prev_count changing beneath our feet
@ -155,7 +170,7 @@ static int arc_pmu_event_init(struct perf_event *event)
int ret;
if (!is_sampling_event(event)) {
hwc->sample_period = arc_pmu->max_period;
hwc->sample_period = arc_pmu->max_period;
hwc->last_period = hwc->sample_period;
local64_set(&hwc->period_left, hwc->sample_period);
}
@ -192,6 +207,18 @@ static int arc_pmu_event_init(struct perf_event *event)
pr_debug("init cache event with h/w %08x \'%s\'\n",
(int)hwc->config, arc_pmu_ev_hw_map[ret]);
return 0;
case PERF_TYPE_RAW:
if (event->attr.config >= arc_pmu->n_events)
return -ENOENT;
hwc->config |= event->attr.config;
pr_debug("init raw event with idx %lld \'%s\'\n",
event->attr.config,
arc_pmu->raw_entry[event->attr.config].name);
return 0;
default:
return -ENOENT;
}
@ -200,7 +227,7 @@ static int arc_pmu_event_init(struct perf_event *event)
/* starts all counters */
static void arc_pmu_enable(struct pmu *pmu)
{
uint32_t tmp;
u32 tmp;
tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
write_aux_reg(ARC_REG_PCT_CONTROL, (tmp & 0xffff0000) | 0x1);
}
@ -208,7 +235,7 @@ static void arc_pmu_enable(struct pmu *pmu)
/* stops all counters */
static void arc_pmu_disable(struct pmu *pmu)
{
uint32_t tmp;
u32 tmp;
tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
write_aux_reg(ARC_REG_PCT_CONTROL, (tmp & 0xffff0000) | 0x0);
}
@ -228,7 +255,7 @@ static int arc_pmu_event_set_period(struct perf_event *event)
local64_set(&hwc->period_left, left);
hwc->last_period = period;
overflow = 1;
} else if (unlikely(left <= 0)) {
} else if (unlikely(left <= 0)) {
/* left underflowed by less than period. */
left += period;
local64_set(&hwc->period_left, left);
@ -246,8 +273,8 @@ static int arc_pmu_event_set_period(struct perf_event *event)
write_aux_reg(ARC_REG_PCT_INDEX, idx);
/* Write value */
write_aux_reg(ARC_REG_PCT_COUNTL, (u32)value);
write_aux_reg(ARC_REG_PCT_COUNTH, (value >> 32));
write_aux_reg(ARC_REG_PCT_COUNTL, lower_32_bits(value));
write_aux_reg(ARC_REG_PCT_COUNTH, upper_32_bits(value));
perf_event_update_userpage(event);
@ -277,7 +304,7 @@ static void arc_pmu_start(struct perf_event *event, int flags)
/* Enable interrupt for this counter */
if (is_sampling_event(event))
write_aux_reg(ARC_REG_PCT_INT_CTRL,
read_aux_reg(ARC_REG_PCT_INT_CTRL) | (1 << idx));
read_aux_reg(ARC_REG_PCT_INT_CTRL) | BIT(idx));
/* enable ARC pmu here */
write_aux_reg(ARC_REG_PCT_INDEX, idx); /* counter # */
@ -295,9 +322,9 @@ static void arc_pmu_stop(struct perf_event *event, int flags)
* Reset interrupt flag by writing of 1. This is required
* to make sure pending interrupt was not left.
*/
write_aux_reg(ARC_REG_PCT_INT_ACT, 1 << idx);
write_aux_reg(ARC_REG_PCT_INT_ACT, BIT(idx));
write_aux_reg(ARC_REG_PCT_INT_CTRL,
read_aux_reg(ARC_REG_PCT_INT_CTRL) & ~(1 << idx));
read_aux_reg(ARC_REG_PCT_INT_CTRL) & ~BIT(idx));
}
if (!(event->hw.state & PERF_HES_STOPPED)) {
@ -349,9 +376,10 @@ static int arc_pmu_add(struct perf_event *event, int flags)
if (is_sampling_event(event)) {
/* Mimic full counter overflow as other arches do */
write_aux_reg(ARC_REG_PCT_INT_CNTL, (u32)arc_pmu->max_period);
write_aux_reg(ARC_REG_PCT_INT_CNTL,
lower_32_bits(arc_pmu->max_period));
write_aux_reg(ARC_REG_PCT_INT_CNTH,
(arc_pmu->max_period >> 32));
upper_32_bits(arc_pmu->max_period));
}
write_aux_reg(ARC_REG_PCT_CONFIG, 0);
@ -392,7 +420,7 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev)
idx = __ffs(active_ints);
/* Reset interrupt flag by writing of 1 */
write_aux_reg(ARC_REG_PCT_INT_ACT, 1 << idx);
write_aux_reg(ARC_REG_PCT_INT_ACT, BIT(idx));
/*
* On reset of "interrupt active" bit corresponding
@ -400,7 +428,7 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev)
* Now we need to re-enable interrupt for the counter.
*/
write_aux_reg(ARC_REG_PCT_INT_CTRL,
read_aux_reg(ARC_REG_PCT_INT_CTRL) | (1 << idx));
read_aux_reg(ARC_REG_PCT_INT_CTRL) | BIT(idx));
event = pmu_cpu->act_counter[idx];
hwc = &event->hw;
@ -414,7 +442,7 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev)
arc_pmu_stop(event, 0);
}
active_ints &= ~(1U << idx);
active_ints &= ~BIT(idx);
} while (active_ints);
done:
@ -441,19 +469,108 @@ static void arc_cpu_pmu_irq_init(void *data)
write_aux_reg(ARC_REG_PCT_INT_ACT, 0xffffffff);
}
/* Event field occupies the bottom 15 bits of our config field */
PMU_FORMAT_ATTR(event, "config:0-14");
static struct attribute *arc_pmu_format_attrs[] = {
&format_attr_event.attr,
NULL,
};
static struct attribute_group arc_pmu_format_attr_gr = {
.name = "format",
.attrs = arc_pmu_format_attrs,
};
static ssize_t arc_pmu_events_sysfs_show(struct device *dev,
struct device_attribute *attr,
char *page)
{
struct perf_pmu_events_attr *pmu_attr;
pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);
return sprintf(page, "event=0x%04llx\n", pmu_attr->id);
}
/*
* We don't add attrs here as we don't have pre-defined list of perf events.
* We will generate and add attrs dynamically in probe() after we read HW
* configuration.
*/
static struct attribute_group arc_pmu_events_attr_gr = {
.name = "events",
};
static void arc_pmu_add_raw_event_attr(int j, char *str)
{
memmove(arc_pmu->raw_entry[j].name, str, ARCPMU_EVENT_NAME_LEN - 1);
arc_pmu->attr[j].attr.attr.name = arc_pmu->raw_entry[j].name;
arc_pmu->attr[j].attr.attr.mode = VERIFY_OCTAL_PERMISSIONS(0444);
arc_pmu->attr[j].attr.show = arc_pmu_events_sysfs_show;
arc_pmu->attr[j].id = j;
arc_pmu->attrs[j] = &(arc_pmu->attr[j].attr.attr);
}
static int arc_pmu_raw_alloc(struct device *dev)
{
arc_pmu->attr = devm_kmalloc_array(dev, arc_pmu->n_events + 1,
sizeof(*arc_pmu->attr), GFP_KERNEL | __GFP_ZERO);
if (!arc_pmu->attr)
return -ENOMEM;
arc_pmu->attrs = devm_kmalloc_array(dev, arc_pmu->n_events + 1,
sizeof(*arc_pmu->attrs), GFP_KERNEL | __GFP_ZERO);
if (!arc_pmu->attrs)
return -ENOMEM;
arc_pmu->raw_entry = devm_kmalloc_array(dev, arc_pmu->n_events,
sizeof(*arc_pmu->raw_entry), GFP_KERNEL | __GFP_ZERO);
if (!arc_pmu->raw_entry)
return -ENOMEM;
return 0;
}
static inline bool event_in_hw_event_map(int i, char *name)
{
if (!arc_pmu_ev_hw_map[i])
return false;
if (!strlen(arc_pmu_ev_hw_map[i]))
return false;
if (strcmp(arc_pmu_ev_hw_map[i], name))
return false;
return true;
}
static void arc_pmu_map_hw_event(int j, char *str)
{
int i;
/* See if HW condition has been mapped to a perf event_id */
for (i = 0; i < ARRAY_SIZE(arc_pmu_ev_hw_map); i++) {
if (event_in_hw_event_map(i, str)) {
pr_debug("mapping perf event %2d to h/w event \'%8s\' (idx %d)\n",
i, str, j);
arc_pmu->ev_hw_idx[i] = j;
}
}
}
static int arc_pmu_device_probe(struct platform_device *pdev)
{
struct arc_reg_pct_build pct_bcr;
struct arc_reg_cc_build cc_bcr;
int i, j, has_interrupts;
int i, has_interrupts;
int counter_size; /* in bits */
union cc_name {
struct {
uint32_t word0, word1;
u32 word0, word1;
char sentinel;
} indiv;
char str[9];
char str[ARCPMU_EVENT_NAME_LEN];
} cc_name;
@ -463,15 +580,22 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
return -ENODEV;
}
BUILD_BUG_ON(ARC_PERF_MAX_COUNTERS > 32);
BUG_ON(pct_bcr.c > ARC_PERF_MAX_COUNTERS);
if (WARN_ON(pct_bcr.c > ARC_PERF_MAX_COUNTERS))
return -EINVAL;
READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
BUG_ON(!cc_bcr.v); /* Counters exist but No countable conditions ? */
if (WARN(!cc_bcr.v, "Counters exist but No countable conditions?"))
return -EINVAL;
arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu), GFP_KERNEL);
if (!arc_pmu)
return -ENOMEM;
arc_pmu->n_events = cc_bcr.c;
if (arc_pmu_raw_alloc(&pdev->dev))
return -ENOMEM;
has_interrupts = is_isa_arcv2() ? pct_bcr.i : 0;
arc_pmu->n_counters = pct_bcr.c;
@ -481,30 +605,26 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
pr_info("ARC perf\t: %d counters (%d bits), %d conditions%s\n",
arc_pmu->n_counters, counter_size, cc_bcr.c,
has_interrupts ? ", [overflow IRQ support]":"");
has_interrupts ? ", [overflow IRQ support]" : "");
cc_name.str[8] = 0;
cc_name.str[ARCPMU_EVENT_NAME_LEN - 1] = 0;
for (i = 0; i < PERF_COUNT_ARC_HW_MAX; i++)
arc_pmu->ev_hw_idx[i] = -1;
/* loop thru all available h/w condition indexes */
for (j = 0; j < cc_bcr.c; j++) {
write_aux_reg(ARC_REG_CC_INDEX, j);
for (i = 0; i < cc_bcr.c; i++) {
write_aux_reg(ARC_REG_CC_INDEX, i);
cc_name.indiv.word0 = read_aux_reg(ARC_REG_CC_NAME0);
cc_name.indiv.word1 = read_aux_reg(ARC_REG_CC_NAME1);
/* See if it has been mapped to a perf event_id */
for (i = 0; i < ARRAY_SIZE(arc_pmu_ev_hw_map); i++) {
if (arc_pmu_ev_hw_map[i] &&
!strcmp(arc_pmu_ev_hw_map[i], cc_name.str) &&
strlen(arc_pmu_ev_hw_map[i])) {
pr_debug("mapping perf event %2d to h/w event \'%8s\' (idx %d)\n",
i, cc_name.str, j);
arc_pmu->ev_hw_idx[i] = j;
}
}
arc_pmu_map_hw_event(i, cc_name.str);
arc_pmu_add_raw_event_attr(i, cc_name.str);
}
arc_pmu_events_attr_gr.attrs = arc_pmu->attrs;
arc_pmu->attr_groups[ARCPMU_ATTR_GR_EVENTS] = &arc_pmu_events_attr_gr;
arc_pmu->attr_groups[ARCPMU_ATTR_GR_FORMATS] = &arc_pmu_format_attr_gr;
arc_pmu->pmu = (struct pmu) {
.pmu_enable = arc_pmu_enable,
.pmu_disable = arc_pmu_disable,
@ -514,6 +634,7 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
.start = arc_pmu_start,
.stop = arc_pmu_stop,
.read = arc_pmu_read,
.attr_groups = arc_pmu->attr_groups,
};
if (has_interrupts) {
@ -535,17 +656,19 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
} else
arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
return perf_pmu_register(&arc_pmu->pmu, pdev->name, PERF_TYPE_RAW);
/*
* perf parser doesn't really like '-' symbol in events name, so let's
* use '_' in arc pct name as it goes to kernel PMU event prefix.
*/
return perf_pmu_register(&arc_pmu->pmu, "arc_pct", PERF_TYPE_RAW);
}
#ifdef CONFIG_OF
static const struct of_device_id arc_pmu_match[] = {
{ .compatible = "snps,arc700-pct" },
{ .compatible = "snps,archs-pct" },
{},
};
MODULE_DEVICE_TABLE(of, arc_pmu_match);
#endif
static struct platform_driver arc_pmu_driver = {
.driver = {

View File

@ -123,6 +123,7 @@ static void read_arc_build_cfg_regs(void)
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
const struct id_to_str *tbl;
struct bcr_isa_arcv2 isa;
struct bcr_actionpoint ap;
FIX_PTR(cpu);
@ -195,6 +196,7 @@ static void read_arc_build_cfg_regs(void)
cpu->bpu.full = bpu.ft;
cpu->bpu.num_cache = 256 << bpu.bce;
cpu->bpu.num_pred = 2048 << bpu.pte;
cpu->bpu.ret_stk = 4 << bpu.rse;
if (cpu->core.family >= 0x54) {
unsigned int exec_ctrl;
@ -207,8 +209,11 @@ static void read_arc_build_cfg_regs(void)
}
}
READ_BCR(ARC_REG_AP_BCR, bcr);
cpu->extn.ap = bcr.ver ? 1 : 0;
READ_BCR(ARC_REG_AP_BCR, ap);
if (ap.ver) {
cpu->extn.ap_num = 2 << ap.num;
cpu->extn.ap_full = !!ap.min;
}
READ_BCR(ARC_REG_SMART_BCR, bcr);
cpu->extn.smart = bcr.ver ? 1 : 0;
@ -216,8 +221,6 @@ static void read_arc_build_cfg_regs(void)
READ_BCR(ARC_REG_RTT_BCR, bcr);
cpu->extn.rtt = bcr.ver ? 1 : 0;
cpu->extn.debug = cpu->extn.ap | cpu->extn.smart | cpu->extn.rtt;
READ_BCR(ARC_REG_ISA_CFG_BCR, isa);
/* some hacks for lack of feature BCR info in old ARC700 cores */
@ -299,10 +302,10 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
if (cpu->bpu.ver)
n += scnprintf(buf + n, len - n,
"BPU\t\t: %s%s match, cache:%d, Predict Table:%d",
"BPU\t\t: %s%s match, cache:%d, Predict Table:%d Return stk: %d",
IS_AVAIL1(cpu->bpu.full, "full"),
IS_AVAIL1(!cpu->bpu.full, "partial"),
cpu->bpu.num_cache, cpu->bpu.num_pred);
cpu->bpu.num_cache, cpu->bpu.num_pred, cpu->bpu.ret_stk);
if (is_isa_arcv2()) {
struct bcr_lpb lpb;
@ -336,11 +339,17 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
IS_AVAIL1(cpu->extn.fpu_sp, "SP "),
IS_AVAIL1(cpu->extn.fpu_dp, "DP "));
if (cpu->extn.debug)
n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s%s\n",
IS_AVAIL1(cpu->extn.ap, "ActionPoint "),
if (cpu->extn.ap_num | cpu->extn.smart | cpu->extn.rtt) {
n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s",
IS_AVAIL1(cpu->extn.smart, "smaRT "),
IS_AVAIL1(cpu->extn.rtt, "RTT "));
if (cpu->extn.ap_num) {
n += scnprintf(buf + n, len - n, "ActionPoint %d/%s",
cpu->extn.ap_num,
cpu->extn.ap_full ? "full":"min");
}
n += scnprintf(buf + n, len - n, "\n");
}
if (cpu->dccm.sz || cpu->iccm.sz)
n += scnprintf(buf + n, len - n, "Extn [CCM]\t: DCCM @ %x, %d KB / ICCM: @ %x, %d KB\n",

View File

@ -18,6 +18,8 @@
#include <asm/arcregs.h>
#include <asm/irqflags.h>
#define ARC_PATH_MAX 256
/*
* Common routine to print scratch regs (r0-r12) or callee regs (r13-r25)
* -Prints 3 regs per line and a CR.
@ -58,11 +60,12 @@ static void show_callee_regs(struct callee_regs *cregs)
print_reg_file(&(cregs->r13), 13);
}
static void print_task_path_n_nm(struct task_struct *tsk, char *buf)
static void print_task_path_n_nm(struct task_struct *tsk)
{
char *path_nm = NULL;
struct mm_struct *mm;
struct file *exe_file;
char buf[ARC_PATH_MAX];
mm = get_task_mm(tsk);
if (!mm)
@ -72,7 +75,7 @@ static void print_task_path_n_nm(struct task_struct *tsk, char *buf)
mmput(mm);
if (exe_file) {
path_nm = file_path(exe_file, buf, 255);
path_nm = file_path(exe_file, buf, ARC_PATH_MAX-1);
fput(exe_file);
}
@ -80,10 +83,9 @@ done:
pr_info("Path: %s\n", !IS_ERR(path_nm) ? path_nm : "?");
}
static void show_faulting_vma(unsigned long address, char *buf)
static void show_faulting_vma(unsigned long address)
{
struct vm_area_struct *vma;
char *nm = buf;
struct mm_struct *active_mm = current->active_mm;
/* can't use print_vma_addr() yet as it doesn't check for
@ -96,8 +98,11 @@ static void show_faulting_vma(unsigned long address, char *buf)
* if the container VMA is not found
*/
if (vma && (vma->vm_start <= address)) {
char buf[ARC_PATH_MAX];
char *nm = "?";
if (vma->vm_file) {
nm = file_path(vma->vm_file, buf, PAGE_SIZE - 1);
nm = file_path(vma->vm_file, buf, ARC_PATH_MAX-1);
if (IS_ERR(nm))
nm = "?";
}
@ -173,13 +178,14 @@ void show_regs(struct pt_regs *regs)
{
struct task_struct *tsk = current;
struct callee_regs *cregs;
char *buf;
buf = (char *)__get_free_page(GFP_KERNEL);
if (!buf)
return;
/*
* generic code calls us with preemption disabled, but some calls
* here could sleep, so re-enable to avoid lockdep splat
*/
preempt_enable();
print_task_path_n_nm(tsk, buf);
print_task_path_n_nm(tsk);
show_regs_print_info(KERN_INFO);
show_ecr_verbose(regs);
@ -189,7 +195,7 @@ void show_regs(struct pt_regs *regs)
(void *)regs->blink, (void *)regs->ret);
if (user_mode(regs))
show_faulting_vma(regs->ret, buf); /* faulting code, not data */
show_faulting_vma(regs->ret); /* faulting code, not data */
pr_info("[STAT32]: 0x%08lx", regs->status32);
@ -222,7 +228,7 @@ void show_regs(struct pt_regs *regs)
if (cregs)
show_callee_regs(cregs);
free_page((unsigned long)buf);
preempt_disable();
}
void show_kernel_fault_diag(const char *str, struct pt_regs *regs,

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