Linux 5.0-rc4

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Merge tag 'v5.0-rc4' into asoc-5.1

Linux 5.0-rc4
This commit is contained in:
Mark Brown 2019-01-29 12:04:54 +00:00
commit d7c26e63cf
1146 changed files with 11630 additions and 6289 deletions

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@ -72,6 +72,10 @@ ForEachMacros:
- 'apei_estatus_for_each_section' - 'apei_estatus_for_each_section'
- 'ata_for_each_dev' - 'ata_for_each_dev'
- 'ata_for_each_link' - '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_for_each'
- 'ax25_uid_for_each' - 'ax25_uid_for_each'
- 'bio_for_each_integrity_vec' - 'bio_for_each_integrity_vec'
@ -85,6 +89,7 @@ ForEachMacros:
- 'blk_queue_for_each_rl' - 'blk_queue_for_each_rl'
- 'bond_for_each_slave' - 'bond_for_each_slave'
- 'bond_for_each_slave_rcu' - 'bond_for_each_slave_rcu'
- 'bpf_for_each_spilled_reg'
- 'btree_for_each_safe128' - 'btree_for_each_safe128'
- 'btree_for_each_safe32' - 'btree_for_each_safe32'
- 'btree_for_each_safe64' - 'btree_for_each_safe64'
@ -103,6 +108,8 @@ ForEachMacros:
- 'drm_atomic_crtc_for_each_plane' - 'drm_atomic_crtc_for_each_plane'
- 'drm_atomic_crtc_state_for_each_plane' - 'drm_atomic_crtc_state_for_each_plane'
- 'drm_atomic_crtc_state_for_each_plane_state' - '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_connector_iter'
- 'drm_for_each_crtc' - 'drm_for_each_crtc'
- 'drm_for_each_encoder' - 'drm_for_each_encoder'
@ -121,11 +128,21 @@ ForEachMacros:
- 'for_each_bio' - 'for_each_bio'
- 'for_each_board_func_rsrc' - 'for_each_board_func_rsrc'
- 'for_each_bvec' - '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_child_of_node'
- 'for_each_clear_bit' - 'for_each_clear_bit'
- 'for_each_clear_bit_from' - 'for_each_clear_bit_from'
- 'for_each_cmsghdr' - 'for_each_cmsghdr'
- 'for_each_compatible_node' - 'for_each_compatible_node'
- 'for_each_component_dais'
- 'for_each_component_dais_safe'
- 'for_each_comp_order'
- 'for_each_console' - 'for_each_console'
- 'for_each_cpu' - 'for_each_cpu'
- 'for_each_cpu_and' - 'for_each_cpu_and'
@ -133,6 +150,10 @@ ForEachMacros:
- 'for_each_cpu_wrap' - 'for_each_cpu_wrap'
- 'for_each_dev_addr' - 'for_each_dev_addr'
- 'for_each_dma_cap_mask' - '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_drhd_unit'
- 'for_each_dss_dev' - 'for_each_dss_dev'
- 'for_each_efi_memory_desc' - 'for_each_efi_memory_desc'
@ -149,6 +170,7 @@ ForEachMacros:
- 'for_each_iommu' - 'for_each_iommu'
- 'for_each_ip_tunnel_rcu' - 'for_each_ip_tunnel_rcu'
- 'for_each_irq_nr' - 'for_each_irq_nr'
- 'for_each_link_codecs'
- 'for_each_lru' - 'for_each_lru'
- 'for_each_matching_node' - 'for_each_matching_node'
- 'for_each_matching_node_and_match' - 'for_each_matching_node_and_match'
@ -160,6 +182,7 @@ ForEachMacros:
- 'for_each_mem_range_rev' - 'for_each_mem_range_rev'
- 'for_each_migratetype_order' - 'for_each_migratetype_order'
- 'for_each_msi_entry' - 'for_each_msi_entry'
- 'for_each_msi_entry_safe'
- 'for_each_net' - 'for_each_net'
- 'for_each_netdev' - 'for_each_netdev'
- 'for_each_netdev_continue' - 'for_each_netdev_continue'
@ -183,12 +206,14 @@ ForEachMacros:
- 'for_each_node_with_property' - 'for_each_node_with_property'
- 'for_each_of_allnodes' - 'for_each_of_allnodes'
- 'for_each_of_allnodes_from' - 'for_each_of_allnodes_from'
- 'for_each_of_cpu_node'
- 'for_each_of_pci_range' - 'for_each_of_pci_range'
- 'for_each_old_connector_in_state' - 'for_each_old_connector_in_state'
- 'for_each_old_crtc_in_state' - 'for_each_old_crtc_in_state'
- 'for_each_oldnew_connector_in_state' - 'for_each_oldnew_connector_in_state'
- 'for_each_oldnew_crtc_in_state' - 'for_each_oldnew_crtc_in_state'
- 'for_each_oldnew_plane_in_state' - 'for_each_oldnew_plane_in_state'
- 'for_each_oldnew_plane_in_state_reverse'
- 'for_each_oldnew_private_obj_in_state' - 'for_each_oldnew_private_obj_in_state'
- 'for_each_old_plane_in_state' - 'for_each_old_plane_in_state'
- 'for_each_old_private_obj_in_state' - 'for_each_old_private_obj_in_state'
@ -206,14 +231,17 @@ ForEachMacros:
- 'for_each_process' - 'for_each_process'
- 'for_each_process_thread' - 'for_each_process_thread'
- 'for_each_property_of_node' - 'for_each_property_of_node'
- 'for_each_registered_fb'
- 'for_each_reserved_mem_region' - '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'
- 'for_each_rtdcom_safe' - 'for_each_rtdcom_safe'
- 'for_each_set_bit' - 'for_each_set_bit'
- 'for_each_set_bit_from' - 'for_each_set_bit_from'
- 'for_each_sg' - 'for_each_sg'
- 'for_each_sg_page' - 'for_each_sg_page'
- 'for_each_sibling_event'
- '__for_each_thread' - '__for_each_thread'
- 'for_each_thread' - 'for_each_thread'
- 'for_each_zone' - 'for_each_zone'
@ -251,6 +279,8 @@ ForEachMacros:
- 'hlist_nulls_for_each_entry_from' - 'hlist_nulls_for_each_entry_from'
- 'hlist_nulls_for_each_entry_rcu' - 'hlist_nulls_for_each_entry_rcu'
- 'hlist_nulls_for_each_entry_safe' - 'hlist_nulls_for_each_entry_safe'
- 'i3c_bus_for_each_i2cdev'
- 'i3c_bus_for_each_i3cdev'
- 'ide_host_for_each_port' - 'ide_host_for_each_port'
- 'ide_port_for_each_dev' - 'ide_port_for_each_dev'
- 'ide_port_for_each_present_dev' - 'ide_port_for_each_present_dev'
@ -267,11 +297,14 @@ ForEachMacros:
- 'kvm_for_each_memslot' - 'kvm_for_each_memslot'
- 'kvm_for_each_vcpu' - 'kvm_for_each_vcpu'
- 'list_for_each' - 'list_for_each'
- 'list_for_each_codec'
- 'list_for_each_codec_safe'
- 'list_for_each_entry' - 'list_for_each_entry'
- 'list_for_each_entry_continue' - 'list_for_each_entry_continue'
- 'list_for_each_entry_continue_rcu' - 'list_for_each_entry_continue_rcu'
- 'list_for_each_entry_continue_reverse' - 'list_for_each_entry_continue_reverse'
- 'list_for_each_entry_from' - 'list_for_each_entry_from'
- 'list_for_each_entry_from_rcu'
- 'list_for_each_entry_from_reverse' - 'list_for_each_entry_from_reverse'
- 'list_for_each_entry_lockless' - 'list_for_each_entry_lockless'
- 'list_for_each_entry_rcu' - 'list_for_each_entry_rcu'
@ -291,6 +324,7 @@ ForEachMacros:
- 'media_device_for_each_intf' - 'media_device_for_each_intf'
- 'media_device_for_each_link' - 'media_device_for_each_link'
- 'media_device_for_each_pad' - 'media_device_for_each_pad'
- 'nanddev_io_for_each_page'
- 'netdev_for_each_lower_dev' - 'netdev_for_each_lower_dev'
- 'netdev_for_each_lower_private' - 'netdev_for_each_lower_private'
- 'netdev_for_each_lower_private_rcu' - 'netdev_for_each_lower_private_rcu'
@ -357,12 +391,14 @@ ForEachMacros:
- 'sk_nulls_for_each' - 'sk_nulls_for_each'
- 'sk_nulls_for_each_from' - 'sk_nulls_for_each_from'
- 'sk_nulls_for_each_rcu' - 'sk_nulls_for_each_rcu'
- 'snd_array_for_each'
- 'snd_pcm_group_for_each_entry' - 'snd_pcm_group_for_each_entry'
- 'snd_soc_dapm_widget_for_each_path' - 'snd_soc_dapm_widget_for_each_path'
- 'snd_soc_dapm_widget_for_each_path_safe' - 'snd_soc_dapm_widget_for_each_path_safe'
- 'snd_soc_dapm_widget_for_each_sink_path' - 'snd_soc_dapm_widget_for_each_sink_path'
- 'snd_soc_dapm_widget_for_each_source_path' - 'snd_soc_dapm_widget_for_each_source_path'
- 'tb_property_for_each' - 'tb_property_for_each'
- 'tcf_exts_for_each_action'
- 'udp_portaddr_for_each_entry' - 'udp_portaddr_for_each_entry'
- 'udp_portaddr_for_each_entry_rcu' - 'udp_portaddr_for_each_entry_rcu'
- 'usb_hub_for_each_child' - 'usb_hub_for_each_child'
@ -371,6 +407,11 @@ ForEachMacros:
- 'v4l2_m2m_for_each_dst_buf_safe' - 'v4l2_m2m_for_each_dst_buf_safe'
- 'v4l2_m2m_for_each_src_buf' - 'v4l2_m2m_for_each_src_buf'
- 'v4l2_m2m_for_each_src_buf_safe' - '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' - 'zorro_for_each_dev'
#IncludeBlocks: Preserve # Unknown to clang-format-5.0 #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 size in 512B sectors of the zones of the device, with
the eventual exception of the last zone of the device the eventual exception of the last zone of the device
which may be smaller. 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 statistics (bd_count, bd_reads, bd_writes) in a format
similar to block layer statistics file 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 What: /sys/block/zram<id>/writeback_limit
Date: November 2018 Date: November 2018
Contact: Minchan Kim <minchan@kernel.org> Contact: Minchan Kim <minchan@kernel.org>
Description: Description:
The writeback_limit file is read-write and specifies the maximum The writeback_limit file is read-write and specifies the maximum
amount of writeback ZRAM can do. The limit could be changed amount of writeback ZRAM can do. The limit could be changed
in run time and "0" means disable the limit. in run time.
No limit is the initial state.

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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 than maximum throughput. In these cases, consider setting the
strict_guarantees parameter. 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 strict_guarantees
----------------- -----------------

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@ -88,7 +88,8 @@ shared_tags=[0/1]: Default: 0
zoned=[0/1]: Default: 0 zoned=[0/1]: Default: 0
0: Block device is exposed as a random-access block device. 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 zone_size=[MB]: Default: 256
Per zone size when exposed as a zoned block device. Must be a power of two. 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 IO to sleep for this amount of microseconds before entering classic
polling. 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) iostats (RW)
------------- -------------
This file is used to control (on/off) the iostats accounting of the 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 A brief description of exported device attributes. For more details please
read Documentation/ABI/testing/sysfs-block-zram. read Documentation/ABI/testing/sysfs-block-zram.
Name access description Name access description
---- ------ ----------- ---- ------ -----------
disksize RW show and set the device's disk size disksize RW show and set the device's disk size
initstate RO shows the initialization state of the device initstate RO shows the initialization state of the device
reset WO trigger device reset reset WO trigger device reset
mem_used_max WO reset the `mem_used_max' counter (see later) mem_used_max WO reset the `mem_used_max' counter (see later)
mem_limit WO specifies the maximum amount of memory ZRAM can use mem_limit WO specifies the maximum amount of memory ZRAM can use
to store the compressed data to store the compressed data
writeback_limit WO specifies the maximum amount of write IO zram can writeback_limit WO specifies the maximum amount of write IO zram can
write out to backing device as 4KB unit write out to backing device as 4KB unit
max_comp_streams RW the number of possible concurrent compress operations writeback_limit_enable RW show and set writeback_limit feature
comp_algorithm RW show and change the compression algorithm max_comp_streams RW the number of possible concurrent compress operations
compact WO trigger memory compaction comp_algorithm RW show and change the compression algorithm
debug_stat RO this file is used for zram debugging purposes compact WO trigger memory compaction
backing_dev RW set up backend storage for zram to write out debug_stat RO this file is used for zram debugging purposes
idle WO mark allocated slot as idle 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. 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 If there are lots of write IO with flash device, potentially, it has
flash wearout problem so that admin needs to design write limitation flash wearout problem so that admin needs to design write limitation
to guarantee storage health for entire product life. 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 To overcome the concern, zram supports "writeback_limit" feature.
any writeback. If admin want to measure writeback count in a certain The "writeback_limit_enable"'s default value is 0 so that it doesn't limit
period, he could know it via /sys/block/zram0/bd_stat's 3rd column. 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 If admin want to limit writeback as per-day 400M, he could do it
like below. like below.
MB_SHIFT=20 $ MB_SHIFT=20
4K_SHIFT=12 $ 4K_SHIFT=12
echo $((400<<MB_SHIFT>>4K_SHIFT)) > \ $ echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
/sys/block/zram0/writeback_limit. /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, 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., 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 system reboot, echo 1 > /sys/block/zramX/reset) so keeping how many of
writeback happened until you reset the zram to allocate extra writeback writeback happened until you reset the zram to allocate extra writeback
budget in next setting is user's job. 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 = memory tracking
With CONFIG_ZRAM_MEMORY_TRACKING, user can know information of the 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 A: YES. BPF instructions, arguments to BPF programs, set of helper
functions and their arguments, recognized return codes are all part functions and their arguments, recognized return codes are all part
of ABI. However when tracing programs are using bpf_probe_read() helper of ABI. However there is one specific exception to tracing programs
to walk kernel internal datastructures and compile with kernel which are using helpers like bpf_probe_read() to walk kernel internal
internal headers these accesses can and will break with newer data structures and compile with kernel internal headers. Both of these
kernels. The union bpf_attr -> kern_version is checked at load time kernel internals are subject to change and can break with newer kernels
to prevent accidentally loading kprobe-based bpf programs written such that the program needs to be adapted accordingly.
for a different kernel. Networking programs don't do kern_version check.
Q: How much stack space a BPF program uses? 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` 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 not need to allocate memory. The :c:func:`xa_reserve` function
will store a reserved entry at the indicated index. Users of the normal will store a reserved entry at the indicated index. Users of the
API will see this entry as containing ``NULL``. If you do not need to normal API will see this entry as containing ``NULL``. If you do
use the reserved entry, you can call :c:func:`xa_release` to remove the not need to use the reserved entry, you can call :c:func:`xa_release`
unused entry. If another user has stored to the entry in the meantime, to remove the unused entry. If another user has stored to the entry
:c:func:`xa_release` will do nothing; if instead you want the entry to in the meantime, :c:func:`xa_release` will do nothing; if instead you
become ``NULL``, you should use :c:func:`xa_erase`. 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 If all entries in the array are ``NULL``, the :c:func:`xa_empty` function
will return ``true``. will return ``true``.
@ -183,6 +184,8 @@ Takes xa_lock internally:
* :c:func:`xa_store_bh` * :c:func:`xa_store_bh`
* :c:func:`xa_store_irq` * :c:func:`xa_store_irq`
* :c:func:`xa_insert` * :c:func:`xa_insert`
* :c:func:`xa_insert_bh`
* :c:func:`xa_insert_irq`
* :c:func:`xa_erase` * :c:func:`xa_erase`
* :c:func:`xa_erase_bh` * :c:func:`xa_erase_bh`
* :c:func:`xa_erase_irq` * :c:func:`xa_erase_irq`

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@ -235,4 +235,4 @@ cpus {
=========================================== ===========================================
[1] ARM Linux Kernel documentation - CPUs bindings [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 [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 [2] ARM Linux Kernel documentation - PSCI bindings
Documentation/devicetree/bindings/arm/psci.txt Documentation/devicetree/bindings/arm/psci.txt

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@ -4,7 +4,7 @@ SP810 System Controller
Required properties: Required properties:
- compatible: standard compatible string for a Primecell peripheral, - 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 for more details
should be: "arm,sp810", "arm,primecell" should be: "arm,sp810", "arm,primecell"

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@ -472,4 +472,4 @@ cpus {
=============================================================================== ===============================================================================
[1] ARM Linux kernel documentation [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 Each clock is assigned an identifier and client nodes use this identifier
to specify the clock which they consume. 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 * 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: Required properties:

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

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@ -14,8 +14,6 @@ Required properties:
"marvell,armada-8k-gpio" should be used for the Armada 7K and 8K "marvell,armada-8k-gpio" should be used for the Armada 7K and 8K
SoCs (either from AP or CP), see 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 Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
for specific details about the offset property. 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, PPI affinity can be expressed as a single "ppi-partitions" node,
containing a set of sub-nodes, each with the following property: containing a set of sub-nodes, each with the following property:
- affinity: Should be a list of phandles to CPU nodes (as described in - 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 GICv3 has one or more Interrupt Translation Services (ITS) that are
used to route Message Signalled Interrupts (MSI) to the CPUs. used to route Message Signalled Interrupts (MSI) to the CPUs.

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@ -1,7 +1,8 @@
Altera SOCFPGA Reset Manager Altera SOCFPGA Reset Manager
Required properties: 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) - reg : Should contain 1 register ranges(address and length)
- altr,modrst-offset : Should contain the offset of the first modrst register. - altr,modrst-offset : Should contain the offset of the first modrst register.
- #reset-cells: 1 - #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, Some peripheral core reset belongs to its own glue layer. Before using
it is necessary to control the clocks and resets to enable this layer. this core reset, it is necessary to control the clocks and resets to enable
These clocks and resets should be described in each property. this layer. These clocks and resets should be described in each property.
Required properties: Required properties:
- compatible: Should be - compatible: Should be
"socionext,uniphier-pro4-usb3-reset" - for Pro4 SoC "socionext,uniphier-pro4-usb3-reset" - for Pro4 SoC USB3
"socionext,uniphier-pxs2-usb3-reset" - for PXs2 SoC "socionext,uniphier-pxs2-usb3-reset" - for PXs2 SoC USB3
"socionext,uniphier-ld20-usb3-reset" - for LD20 SoC "socionext,uniphier-ld20-usb3-reset" - for LD20 SoC USB3
"socionext,uniphier-pxs3-usb3-reset" - for PXs3 SoC "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. - #reset-cells: Should be 1.
- reg: Specifies offset and length of the register set for the device. - 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. According to the clock-names, appropriate clocks are required.
- clock-names: Should contain - clock-names: Should contain
"gio", "link" - for Pro4 SoC "gio", "link" - for Pro4 SoC
"link" - for others "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. According to the reset-names, appropriate resets are required.
- reset-names: Should contain - reset-names: Should contain
"gio", "link" - for Pro4 SoC "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 = EXAMPLE
The following example represents the GLINK RPM node on a MSM8996 device, with 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 the function for the "rpm_request" channel defined, which is used for
regualtors and root clocks. regulators and root clocks.
apcs_glb: mailbox@9820000 { apcs_glb: mailbox@9820000 {
compatible = "qcom,msm8996-apcs-hmss-global"; compatible = "qcom,msm8996-apcs-hmss-global";

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

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@ -124,11 +124,11 @@ struct bus_attribute {
ssize_t (*store)(struct bus_type *, const char * buf, size_t count); ssize_t (*store)(struct bus_type *, const char * buf, size_t count);
}; };
Bus drivers can export attributes using the BUS_ATTR macro that works Bus drivers can export attributes using the BUS_ATTR_RW macro that works
similarly to the DEVICE_ATTR macro for devices. For example, a definition similarly to the DEVICE_ATTR_RW macro for devices. For example, a
like this: definition like this:
static BUS_ATTR(debug,0644,show_debug,store_debug); static BUS_ATTR_RW(debug);
is equivalent to declaring: 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. be preserved until there actually is some text is output to the console.
This option causes fbcon to bind immediately to the fbdev device. 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 C. Attaching, Detaching and Unloading
Before going on to how to attach, detach and unload the framebuffer console, an Before going on to how to attach, detach and unload the framebuffer console, an

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

View File

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

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

View File

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

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

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

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

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

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

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

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

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

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

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

View File

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

View File

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

View File

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

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

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

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@ -11,19 +11,19 @@ Contents:
batman-adv batman-adv
can can
can_ucan_protocol can_ucan_protocol
dpaa2/index device_drivers/freescale/dpaa2/index
e100 device_drivers/intel/e100
e1000 device_drivers/intel/e1000
e1000e device_drivers/intel/e1000e
fm10k device_drivers/intel/fm10k
igb device_drivers/intel/igb
igbvf device_drivers/intel/igbvf
ixgb device_drivers/intel/ixgb
ixgbe device_drivers/intel/ixgbe
ixgbevf device_drivers/intel/ixgbevf
i40e device_drivers/intel/i40e
iavf device_drivers/intel/iavf
ice device_drivers/intel/ice
kapi kapi
z8530book z8530book
msg_zerocopy 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 size should be set when the call is begun. tx_total_len may not be less
than zero. 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. (*) Get call RTT.
u64 rxrpc_kernel_get_rtt(struct socket *sock, struct rxrpc_call *call); 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. 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 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 packet, one is fast path, another is slow path. The comment in kernel
@ -383,8 +402,6 @@ increase 1.
TCP abort TCP abort
======== ========
* TcpExtTCPAbortOnData * TcpExtTCPAbortOnData
It means TCP layer has data in flight, but need to close the 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 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 stack of kernel will increase TcpExtTCPSACKReorder for both of the
above scenarios. above scenarios.
DSACK DSACK
===== =====
The DSACK is defined in `RFC2883`_. The receiver uses DSACK to report 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. DSACK to the sender.
* TcpExtTCPDSACKRecv * 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. duplicate packet is received.
* TcpExtTCPDSACKOfoRecv * TcpExtTCPDSACKOfoRecv
The TCP stack receives a DSACK, which indicate an out of order The TCP stack receives a DSACK, which indicate an out of order
duplicate packet is received. 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 TCP out of order
=============== ===============
* TcpExtTCPOFOQueue * 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 4.2: https://tools.ietf.org/html/rfc5961#page-9
.. _RFC 5961 section 5.2: https://tools.ietf.org/html/rfc5961#page-11 .. _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 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 Hardware time stamping must also be initialized for each device driver
that is expected to do hardware time stamping. The parameter is defined in 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 { struct hwtstamp_config {
int flags; /* no flags defined right now, must be zero */ int flags; /* no flags defined right now, must be zero */
@ -487,7 +487,7 @@ enum {
HWTSTAMP_FILTER_PTP_V1_L4_EVENT, HWTSTAMP_FILTER_PTP_V1_L4_EVENT,
/* for the complete list of values, please check /* 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. The same can also be done from an application program.
Disable specific CPU's specific idle state from cpuidle sysfs (see 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 # 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 .. [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) .. [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 .. [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> Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@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: flag bits:
RDT (Resource Director Technology) Allocation - "rdt_a" RDT (Resource Director Technology) Allocation - "rdt_a"
CAT (Cache Allocation Technology) - "cat_l3", "cat_l2" 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 F: include/linux/bcm963xx_tag.h
BROADCOM BNX2 GIGABIT ETHERNET DRIVER BROADCOM BNX2 GIGABIT ETHERNET DRIVER
M: Rasesh Mody <rasesh.mody@cavium.com> M: Rasesh Mody <rmody@marvell.com>
M: Dept-GELinuxNICDev@cavium.com M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: drivers/net/ethernet/broadcom/bnx2.* F: drivers/net/ethernet/broadcom/bnx2.*
@ -3072,9 +3072,9 @@ S: Supported
F: drivers/scsi/bnx2i/ F: drivers/scsi/bnx2i/
BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
M: Ariel Elior <ariel.elior@cavium.com> M: Ariel Elior <aelior@marvell.com>
M: Sudarsana Kalluru <sudarsana.kalluru@cavium.com> M: Sudarsana Kalluru <skalluru@marvell.com>
M: everest-linux-l2@cavium.com M: GR-everest-linux-l2@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: drivers/net/ethernet/broadcom/bnx2x/ F: drivers/net/ethernet/broadcom/bnx2x/
@ -3249,9 +3249,9 @@ S: Supported
F: drivers/scsi/bfa/ F: drivers/scsi/bfa/
BROCADE BNA 10 GIGABIT ETHERNET DRIVER BROCADE BNA 10 GIGABIT ETHERNET DRIVER
M: Rasesh Mody <rasesh.mody@cavium.com> M: Rasesh Mody <rmody@marvell.com>
M: Sudarsana Kalluru <sudarsana.kalluru@cavium.com> M: Sudarsana Kalluru <skalluru@marvell.com>
M: Dept-GELinuxNICDev@cavium.com M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: drivers/net/ethernet/brocade/bna/ F: drivers/net/ethernet/brocade/bna/
@ -3471,10 +3471,9 @@ F: drivers/i2c/busses/i2c-octeon*
F: drivers/i2c/busses/i2c-thunderx* F: drivers/i2c/busses/i2c-thunderx*
CAVIUM LIQUIDIO NETWORK DRIVER CAVIUM LIQUIDIO NETWORK DRIVER
M: Derek Chickles <derek.chickles@caviumnetworks.com> M: Derek Chickles <dchickles@marvell.com>
M: Satanand Burla <satananda.burla@caviumnetworks.com> M: Satanand Burla <sburla@marvell.com>
M: Felix Manlunas <felix.manlunas@caviumnetworks.com> M: Felix Manlunas <fmanlunas@marvell.com>
M: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
W: http://www.cavium.com W: http://www.cavium.com
S: Supported S: Supported
@ -3951,7 +3950,7 @@ L: netdev@vger.kernel.org
S: Maintained S: Maintained
F: drivers/net/ethernet/ti/cpmac.c F: drivers/net/ethernet/ti/cpmac.c
CPU FREQUENCY DRIVERS CPU FREQUENCY SCALING FRAMEWORK
M: "Rafael J. Wysocki" <rjw@rjwysocki.net> M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
M: Viresh Kumar <viresh.kumar@linaro.org> M: Viresh Kumar <viresh.kumar@linaro.org>
L: linux-pm@vger.kernel.org L: linux-pm@vger.kernel.org
@ -3959,6 +3958,8 @@ S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git 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) T: git git://git.linaro.org/people/vireshk/linux.git (For ARM Updates)
B: https://bugzilla.kernel.org 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/cpu-freq/
F: Documentation/devicetree/bindings/cpufreq/ F: Documentation/devicetree/bindings/cpufreq/
F: drivers/cpufreq/ F: drivers/cpufreq/
@ -3977,6 +3978,7 @@ F: drivers/cpufreq/arm_big_little.c
CPU POWER MONITORING SUBSYSTEM CPU POWER MONITORING SUBSYSTEM
M: Thomas Renninger <trenn@suse.com> M: Thomas Renninger <trenn@suse.com>
M: Shuah Khan <shuah@kernel.org> M: Shuah Khan <shuah@kernel.org>
M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-pm@vger.kernel.org L: linux-pm@vger.kernel.org
S: Maintained S: Maintained
F: tools/power/cpupower/ F: tools/power/cpupower/
@ -4006,13 +4008,14 @@ S: Supported
F: drivers/cpuidle/cpuidle-exynos.c F: drivers/cpuidle/cpuidle-exynos.c
F: arch/arm/mach-exynos/pm.c F: arch/arm/mach-exynos/pm.c
CPUIDLE DRIVERS CPU IDLE TIME MANAGEMENT FRAMEWORK
M: "Rafael J. Wysocki" <rjw@rjwysocki.net> M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
M: Daniel Lezcano <daniel.lezcano@linaro.org> M: Daniel Lezcano <daniel.lezcano@linaro.org>
L: linux-pm@vger.kernel.org L: linux-pm@vger.kernel.org
S: Maintained S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
B: https://bugzilla.kernel.org B: https://bugzilla.kernel.org
F: Documentation/admin-guide/pm/cpuidle.rst
F: drivers/cpuidle/* F: drivers/cpuidle/*
F: include/linux/cpuidle.h F: include/linux/cpuidle.h
@ -8256,6 +8259,7 @@ F: include/uapi/linux/sunrpc/
KERNEL SELFTEST FRAMEWORK KERNEL SELFTEST FRAMEWORK
M: Shuah Khan <shuah@kernel.org> M: Shuah Khan <shuah@kernel.org>
M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-kselftest@vger.kernel.org L: linux-kselftest@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git T: git git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
Q: https://patchwork.kernel.org/project/linux-kselftest/list/ Q: https://patchwork.kernel.org/project/linux-kselftest/list/
@ -10686,9 +10690,9 @@ S: Maintained
F: drivers/net/netdevsim/* F: drivers/net/netdevsim/*
NETXEN (1/10) GbE SUPPORT NETXEN (1/10) GbE SUPPORT
M: Manish Chopra <manish.chopra@cavium.com> M: Manish Chopra <manishc@marvell.com>
M: Rahul Verma <rahul.verma@cavium.com> M: Rahul Verma <rahulv@marvell.com>
M: Dept-GELinuxNICDev@cavium.com M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: drivers/net/ethernet/qlogic/netxen/ F: drivers/net/ethernet/qlogic/netxen/
@ -12472,8 +12476,8 @@ S: Supported
F: drivers/scsi/qedi/ F: drivers/scsi/qedi/
QLOGIC QL4xxx ETHERNET DRIVER QLOGIC QL4xxx ETHERNET DRIVER
M: Ariel Elior <Ariel.Elior@cavium.com> M: Ariel Elior <aelior@marvell.com>
M: everest-linux-l2@cavium.com M: GR-everest-linux-l2@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: drivers/net/ethernet/qlogic/qed/ F: drivers/net/ethernet/qlogic/qed/
@ -12481,8 +12485,8 @@ F: include/linux/qed/
F: drivers/net/ethernet/qlogic/qede/ F: drivers/net/ethernet/qlogic/qede/
QLOGIC QL4xxx RDMA DRIVER QLOGIC QL4xxx RDMA DRIVER
M: Michal Kalderon <Michal.Kalderon@cavium.com> M: Michal Kalderon <mkalderon@marvell.com>
M: Ariel Elior <Ariel.Elior@cavium.com> M: Ariel Elior <aelior@marvell.com>
L: linux-rdma@vger.kernel.org L: linux-rdma@vger.kernel.org
S: Supported S: Supported
F: drivers/infiniband/hw/qedr/ F: drivers/infiniband/hw/qedr/
@ -12502,7 +12506,7 @@ F: Documentation/scsi/LICENSE.qla2xxx
F: drivers/scsi/qla2xxx/ F: drivers/scsi/qla2xxx/
QLOGIC QLA3XXX NETWORK DRIVER QLOGIC QLA3XXX NETWORK DRIVER
M: Dept-GELinuxNICDev@cavium.com M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: Documentation/networking/device_drivers/qlogic/LICENSE.qla3xxx F: Documentation/networking/device_drivers/qlogic/LICENSE.qla3xxx
@ -12516,16 +12520,16 @@ F: Documentation/scsi/LICENSE.qla4xxx
F: drivers/scsi/qla4xxx/ F: drivers/scsi/qla4xxx/
QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
M: Shahed Shaikh <Shahed.Shaikh@cavium.com> M: Shahed Shaikh <shshaikh@marvell.com>
M: Manish Chopra <manish.chopra@cavium.com> M: Manish Chopra <manishc@marvell.com>
M: Dept-GELinuxNICDev@cavium.com M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: drivers/net/ethernet/qlogic/qlcnic/ F: drivers/net/ethernet/qlogic/qlcnic/
QLOGIC QLGE 10Gb ETHERNET DRIVER QLOGIC QLGE 10Gb ETHERNET DRIVER
M: Manish Chopra <manish.chopra@cavium.com> M: Manish Chopra <manishc@marvell.com>
M: Dept-GELinuxNICDev@cavium.com M: GR-Linux-NIC-Dev@marvell.com
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Supported
F: drivers/net/ethernet/qlogic/qlge/ F: drivers/net/ethernet/qlogic/qlge/
@ -13820,8 +13824,9 @@ F: drivers/media/mmc/siano/
SIFIVE DRIVERS SIFIVE DRIVERS
M: Palmer Dabbelt <palmer@sifive.com> M: Palmer Dabbelt <palmer@sifive.com>
M: Paul Walmsley <paul.walmsley@sifive.com>
L: linux-riscv@lists.infradead.org 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 S: Supported
K: sifive K: sifive
N: sifive N: sifive
@ -14432,6 +14437,11 @@ M: Florian Schilhabel <florian.c.schilhabel@googlemail.com>.
S: Odd Fixes S: Odd Fixes
F: drivers/staging/rtl8712/ 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 STAGING - SILICON MOTION SM750 FRAME BUFFER DRIVER
M: Sudip Mukherjee <sudipm.mukherjee@gmail.com> M: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
M: Teddy Wang <teddy.wang@siliconmotion.com> M: Teddy Wang <teddy.wang@siliconmotion.com>
@ -15802,7 +15812,6 @@ M: Alan Stern <stern@rowland.harvard.edu>
L: linux-usb@vger.kernel.org L: linux-usb@vger.kernel.org
L: usb-storage@lists.one-eyed-alien.net L: usb-storage@lists.one-eyed-alien.net
S: Maintained S: Maintained
W: http://www.one-eyed-alien.net/~mdharm/linux-usb/
F: drivers/usb/storage/ F: drivers/usb/storage/
USB MIDI DRIVER USB MIDI DRIVER
@ -15834,6 +15843,7 @@ F: drivers/usb/common/usb-otg-fsm.c
USB OVER IP DRIVER USB OVER IP DRIVER
M: Valentina Manea <valentina.manea.m@gmail.com> M: Valentina Manea <valentina.manea.m@gmail.com>
M: Shuah Khan <shuah@kernel.org> M: Shuah Khan <shuah@kernel.org>
M: Shuah Khan <skhan@linuxfoundation.org>
L: linux-usb@vger.kernel.org L: linux-usb@vger.kernel.org
S: Maintained S: Maintained
F: Documentation/usb/usbip_protocol.txt F: Documentation/usb/usbip_protocol.txt

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

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

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@ -216,6 +216,14 @@ struct bcr_fp_arcv2 {
#endif #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> #include <soc/arc/timers.h>
struct bcr_bpu_arcompact { struct bcr_bpu_arcompact {
@ -283,7 +291,7 @@ struct cpuinfo_arc_cache {
}; };
struct cpuinfo_arc_bpu { 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 { struct cpuinfo_arc_ccm {
@ -302,7 +310,7 @@ struct cpuinfo_arc {
struct { struct {
unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2, 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, 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; timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
} extn; } extn;
struct bcr_mpy extn_mpy; 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) * __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) if (!word)
return 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) * __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( asm volatile(
" ffs.f %0, %1 \n" /* 0:31; 31(Z) if src 0 */ " ffs.f %0, %1 \n" /* 0:31; 31(Z) if src 0 */

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@ -103,7 +103,8 @@ static const char * const arc_pmu_ev_hw_map[] = {
/* counts condition */ /* counts condition */
[PERF_COUNT_HW_INSTRUCTIONS] = "iall", [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 */ [PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */
#ifdef CONFIG_ISA_ARCV2 #ifdef CONFIG_ISA_ARCV2
[PERF_COUNT_HW_BRANCH_MISSES] = "bpmp", [PERF_COUNT_HW_BRANCH_MISSES] = "bpmp",

View File

@ -1,15 +1,10 @@
/* // SPDX-License-Identifier: GPL-2.0+
* Linux performance counter support for ARC700 series //
* // Linux performance counter support for ARC CPUs.
* Copyright (C) 2013-2015 Synopsys, Inc. (www.synopsys.com) // This code is inspired by the perf support of various other architectures.
* //
* This code is inspired by the perf support of various other architectures. // Copyright (C) 2013-2018 Synopsys, Inc. (www.synopsys.com)
*
* 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.
*
*/
#include <linux/errno.h> #include <linux/errno.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <linux/module.h> #include <linux/module.h>
@ -19,12 +14,31 @@
#include <asm/arcregs.h> #include <asm/arcregs.h>
#include <asm/stacktrace.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 arc_pmu {
struct pmu pmu; struct pmu pmu;
unsigned int irq; unsigned int irq;
int n_counters; int n_counters;
int n_events;
u64 max_period; u64 max_period;
int ev_hw_idx[PERF_COUNT_ARC_HW_MAX]; 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 { struct arc_pmu_cpu {
@ -49,6 +63,7 @@ static int callchain_trace(unsigned int addr, void *data)
{ {
struct arc_callchain_trace *ctrl = data; struct arc_callchain_trace *ctrl = data;
struct perf_callchain_entry_ctx *entry = ctrl->perf_stuff; struct perf_callchain_entry_ctx *entry = ctrl->perf_stuff;
perf_callchain_store(entry, addr); perf_callchain_store(entry, addr);
if (ctrl->depth++ < 3) if (ctrl->depth++ < 3)
@ -57,8 +72,8 @@ static int callchain_trace(unsigned int addr, void *data)
return -1; return -1;
} }
void void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs) struct pt_regs *regs)
{ {
struct arc_callchain_trace ctrl = { struct arc_callchain_trace ctrl = {
.depth = 0, .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); arc_unwind_core(NULL, regs, callchain_trace, &ctrl);
} }
void void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs) struct pt_regs *regs)
{ {
/* /*
* User stack can't be unwound trivially with kernel dwarf unwinder * 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); static DEFINE_PER_CPU(struct arc_pmu_cpu, arc_pmu_cpu);
/* read counter #idx; note that counter# != event# on ARC! */ /* 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; u32 tmp;
uint64_t result; u64 result;
/* /*
* ARC supports making 'snapshots' of the counters, so we don't * 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); write_aux_reg(ARC_REG_PCT_INDEX, idx);
tmp = read_aux_reg(ARC_REG_PCT_CONTROL); tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
write_aux_reg(ARC_REG_PCT_CONTROL, tmp | ARC_REG_PCT_CONTROL_SN); 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); result |= read_aux_reg(ARC_REG_PCT_SNAPL);
return result; 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, static void arc_perf_event_update(struct perf_event *event,
struct hw_perf_event *hwc, int idx) struct hw_perf_event *hwc, int idx)
{ {
uint64_t prev_raw_count = local64_read(&hwc->prev_count); u64 prev_raw_count = local64_read(&hwc->prev_count);
uint64_t new_raw_count = arc_pmu_read_counter(idx); u64 new_raw_count = arc_pmu_read_counter(idx);
int64_t delta = new_raw_count - prev_raw_count; s64 delta = new_raw_count - prev_raw_count;
/* /*
* We aren't afraid of hwc->prev_count changing beneath our feet * 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; int ret;
if (!is_sampling_event(event)) { 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; hwc->last_period = hwc->sample_period;
local64_set(&hwc->period_left, 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", pr_debug("init cache event with h/w %08x \'%s\'\n",
(int)hwc->config, arc_pmu_ev_hw_map[ret]); (int)hwc->config, arc_pmu_ev_hw_map[ret]);
return 0; 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: default:
return -ENOENT; return -ENOENT;
} }
@ -200,7 +227,7 @@ static int arc_pmu_event_init(struct perf_event *event)
/* starts all counters */ /* starts all counters */
static void arc_pmu_enable(struct pmu *pmu) static void arc_pmu_enable(struct pmu *pmu)
{ {
uint32_t tmp; u32 tmp;
tmp = read_aux_reg(ARC_REG_PCT_CONTROL); tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
write_aux_reg(ARC_REG_PCT_CONTROL, (tmp & 0xffff0000) | 0x1); 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 */ /* stops all counters */
static void arc_pmu_disable(struct pmu *pmu) static void arc_pmu_disable(struct pmu *pmu)
{ {
uint32_t tmp; u32 tmp;
tmp = read_aux_reg(ARC_REG_PCT_CONTROL); tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
write_aux_reg(ARC_REG_PCT_CONTROL, (tmp & 0xffff0000) | 0x0); 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); local64_set(&hwc->period_left, left);
hwc->last_period = period; hwc->last_period = period;
overflow = 1; overflow = 1;
} else if (unlikely(left <= 0)) { } else if (unlikely(left <= 0)) {
/* left underflowed by less than period. */ /* left underflowed by less than period. */
left += period; left += period;
local64_set(&hwc->period_left, left); 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_aux_reg(ARC_REG_PCT_INDEX, idx);
/* Write value */ /* Write value */
write_aux_reg(ARC_REG_PCT_COUNTL, (u32)value); write_aux_reg(ARC_REG_PCT_COUNTL, lower_32_bits(value));
write_aux_reg(ARC_REG_PCT_COUNTH, (value >> 32)); write_aux_reg(ARC_REG_PCT_COUNTH, upper_32_bits(value));
perf_event_update_userpage(event); 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 */ /* Enable interrupt for this counter */
if (is_sampling_event(event)) if (is_sampling_event(event))
write_aux_reg(ARC_REG_PCT_INT_CTRL, 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 */ /* enable ARC pmu here */
write_aux_reg(ARC_REG_PCT_INDEX, idx); /* counter # */ 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 * Reset interrupt flag by writing of 1. This is required
* to make sure pending interrupt was not left. * 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, 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)) { 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)) { if (is_sampling_event(event)) {
/* Mimic full counter overflow as other arches do */ /* 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, 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); 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); idx = __ffs(active_ints);
/* Reset interrupt flag by writing of 1 */ /* 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 * 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. * Now we need to re-enable interrupt for the counter.
*/ */
write_aux_reg(ARC_REG_PCT_INT_CTRL, 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]; event = pmu_cpu->act_counter[idx];
hwc = &event->hw; hwc = &event->hw;
@ -414,7 +442,7 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev)
arc_pmu_stop(event, 0); arc_pmu_stop(event, 0);
} }
active_ints &= ~(1U << idx); active_ints &= ~BIT(idx);
} while (active_ints); } while (active_ints);
done: done:
@ -441,19 +469,108 @@ static void arc_cpu_pmu_irq_init(void *data)
write_aux_reg(ARC_REG_PCT_INT_ACT, 0xffffffff); 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) static int arc_pmu_device_probe(struct platform_device *pdev)
{ {
struct arc_reg_pct_build pct_bcr; struct arc_reg_pct_build pct_bcr;
struct arc_reg_cc_build cc_bcr; struct arc_reg_cc_build cc_bcr;
int i, j, has_interrupts; int i, has_interrupts;
int counter_size; /* in bits */ int counter_size; /* in bits */
union cc_name { union cc_name {
struct { struct {
uint32_t word0, word1; u32 word0, word1;
char sentinel; char sentinel;
} indiv; } indiv;
char str[9]; char str[ARCPMU_EVENT_NAME_LEN];
} cc_name; } cc_name;
@ -463,15 +580,22 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
return -ENODEV; return -ENODEV;
} }
BUILD_BUG_ON(ARC_PERF_MAX_COUNTERS > 32); 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); 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); arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu), GFP_KERNEL);
if (!arc_pmu) if (!arc_pmu)
return -ENOMEM; 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; has_interrupts = is_isa_arcv2() ? pct_bcr.i : 0;
arc_pmu->n_counters = pct_bcr.c; 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", pr_info("ARC perf\t: %d counters (%d bits), %d conditions%s\n",
arc_pmu->n_counters, counter_size, cc_bcr.c, 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++) for (i = 0; i < PERF_COUNT_ARC_HW_MAX; i++)
arc_pmu->ev_hw_idx[i] = -1; arc_pmu->ev_hw_idx[i] = -1;
/* loop thru all available h/w condition indexes */ /* loop thru all available h/w condition indexes */
for (j = 0; j < cc_bcr.c; j++) { for (i = 0; i < cc_bcr.c; i++) {
write_aux_reg(ARC_REG_CC_INDEX, j); write_aux_reg(ARC_REG_CC_INDEX, i);
cc_name.indiv.word0 = read_aux_reg(ARC_REG_CC_NAME0); cc_name.indiv.word0 = read_aux_reg(ARC_REG_CC_NAME0);
cc_name.indiv.word1 = read_aux_reg(ARC_REG_CC_NAME1); cc_name.indiv.word1 = read_aux_reg(ARC_REG_CC_NAME1);
/* See if it has been mapped to a perf event_id */ arc_pmu_map_hw_event(i, cc_name.str);
for (i = 0; i < ARRAY_SIZE(arc_pmu_ev_hw_map); i++) { arc_pmu_add_raw_event_attr(i, cc_name.str);
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_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) { arc_pmu->pmu = (struct pmu) {
.pmu_enable = arc_pmu_enable, .pmu_enable = arc_pmu_enable,
.pmu_disable = arc_pmu_disable, .pmu_disable = arc_pmu_disable,
@ -514,6 +634,7 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
.start = arc_pmu_start, .start = arc_pmu_start,
.stop = arc_pmu_stop, .stop = arc_pmu_stop,
.read = arc_pmu_read, .read = arc_pmu_read,
.attr_groups = arc_pmu->attr_groups,
}; };
if (has_interrupts) { if (has_interrupts) {
@ -535,17 +656,19 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
} else } else
arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT; 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[] = { static const struct of_device_id arc_pmu_match[] = {
{ .compatible = "snps,arc700-pct" }, { .compatible = "snps,arc700-pct" },
{ .compatible = "snps,archs-pct" }, { .compatible = "snps,archs-pct" },
{}, {},
}; };
MODULE_DEVICE_TABLE(of, arc_pmu_match); MODULE_DEVICE_TABLE(of, arc_pmu_match);
#endif
static struct platform_driver arc_pmu_driver = { static struct platform_driver arc_pmu_driver = {
.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()]; struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
const struct id_to_str *tbl; const struct id_to_str *tbl;
struct bcr_isa_arcv2 isa; struct bcr_isa_arcv2 isa;
struct bcr_actionpoint ap;
FIX_PTR(cpu); FIX_PTR(cpu);
@ -195,6 +196,7 @@ static void read_arc_build_cfg_regs(void)
cpu->bpu.full = bpu.ft; cpu->bpu.full = bpu.ft;
cpu->bpu.num_cache = 256 << bpu.bce; cpu->bpu.num_cache = 256 << bpu.bce;
cpu->bpu.num_pred = 2048 << bpu.pte; cpu->bpu.num_pred = 2048 << bpu.pte;
cpu->bpu.ret_stk = 4 << bpu.rse;
if (cpu->core.family >= 0x54) { if (cpu->core.family >= 0x54) {
unsigned int exec_ctrl; unsigned int exec_ctrl;
@ -207,8 +209,11 @@ static void read_arc_build_cfg_regs(void)
} }
} }
READ_BCR(ARC_REG_AP_BCR, bcr); READ_BCR(ARC_REG_AP_BCR, ap);
cpu->extn.ap = bcr.ver ? 1 : 0; if (ap.ver) {
cpu->extn.ap_num = 2 << ap.num;
cpu->extn.ap_full = !!ap.min;
}
READ_BCR(ARC_REG_SMART_BCR, bcr); READ_BCR(ARC_REG_SMART_BCR, bcr);
cpu->extn.smart = bcr.ver ? 1 : 0; 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); READ_BCR(ARC_REG_RTT_BCR, bcr);
cpu->extn.rtt = bcr.ver ? 1 : 0; 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); READ_BCR(ARC_REG_ISA_CFG_BCR, isa);
/* some hacks for lack of feature BCR info in old ARC700 cores */ /* 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) if (cpu->bpu.ver)
n += scnprintf(buf + n, len - n, 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, "full"),
IS_AVAIL1(!cpu->bpu.full, "partial"), 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()) { if (is_isa_arcv2()) {
struct bcr_lpb lpb; 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_sp, "SP "),
IS_AVAIL1(cpu->extn.fpu_dp, "DP ")); IS_AVAIL1(cpu->extn.fpu_dp, "DP "));
if (cpu->extn.debug) if (cpu->extn.ap_num | cpu->extn.smart | cpu->extn.rtt) {
n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s%s\n", n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s",
IS_AVAIL1(cpu->extn.ap, "ActionPoint "),
IS_AVAIL1(cpu->extn.smart, "smaRT "), IS_AVAIL1(cpu->extn.smart, "smaRT "),
IS_AVAIL1(cpu->extn.rtt, "RTT ")); 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) 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", 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/arcregs.h>
#include <asm/irqflags.h> #include <asm/irqflags.h>
#define ARC_PATH_MAX 256
/* /*
* Common routine to print scratch regs (r0-r12) or callee regs (r13-r25) * Common routine to print scratch regs (r0-r12) or callee regs (r13-r25)
* -Prints 3 regs per line and a CR. * -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); 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; char *path_nm = NULL;
struct mm_struct *mm; struct mm_struct *mm;
struct file *exe_file; struct file *exe_file;
char buf[ARC_PATH_MAX];
mm = get_task_mm(tsk); mm = get_task_mm(tsk);
if (!mm) if (!mm)
@ -72,7 +75,7 @@ static void print_task_path_n_nm(struct task_struct *tsk, char *buf)
mmput(mm); mmput(mm);
if (exe_file) { 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); fput(exe_file);
} }
@ -80,10 +83,9 @@ static void print_task_path_n_nm(struct task_struct *tsk, char *buf)
pr_info("Path: %s\n", !IS_ERR(path_nm) ? path_nm : "?"); 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; struct vm_area_struct *vma;
char *nm = buf;
struct mm_struct *active_mm = current->active_mm; struct mm_struct *active_mm = current->active_mm;
/* can't use print_vma_addr() yet as it doesn't check for /* 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 the container VMA is not found
*/ */
if (vma && (vma->vm_start <= address)) { if (vma && (vma->vm_start <= address)) {
char buf[ARC_PATH_MAX];
char *nm = "?";
if (vma->vm_file) { 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)) if (IS_ERR(nm))
nm = "?"; nm = "?";
} }
@ -173,13 +178,14 @@ void show_regs(struct pt_regs *regs)
{ {
struct task_struct *tsk = current; struct task_struct *tsk = current;
struct callee_regs *cregs; struct callee_regs *cregs;
char *buf;
buf = (char *)__get_free_page(GFP_KERNEL); /*
if (!buf) * generic code calls us with preemption disabled, but some calls
return; * 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_regs_print_info(KERN_INFO);
show_ecr_verbose(regs); show_ecr_verbose(regs);
@ -189,7 +195,7 @@ void show_regs(struct pt_regs *regs)
(void *)regs->blink, (void *)regs->ret); (void *)regs->blink, (void *)regs->ret);
if (user_mode(regs)) 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); pr_info("[STAT32]: 0x%08lx", regs->status32);
@ -222,7 +228,7 @@ void show_regs(struct pt_regs *regs)
if (cregs) if (cregs)
show_callee_regs(cregs); show_callee_regs(cregs);
free_page((unsigned long)buf); preempt_disable();
} }
void show_kernel_fault_diag(const char *str, struct pt_regs *regs, void show_kernel_fault_diag(const char *str, struct pt_regs *regs,

View File

@ -7,11 +7,39 @@
*/ */
#include <linux/linkage.h> #include <linux/linkage.h>
#include <asm/cache.h>
#undef PREALLOC_NOT_AVAIL /*
* The memset implementation below is optimized to use prefetchw and prealloc
* instruction in case of CPU with 64B L1 data cache line (L1_CACHE_SHIFT == 6)
* If you want to implement optimized memset for other possible L1 data cache
* line lengths (32B and 128B) you should rewrite code carefully checking
* we don't call any prefetchw/prealloc instruction for L1 cache lines which
* don't belongs to memset area.
*/
#if L1_CACHE_SHIFT == 6
.macro PREALLOC_INSTR reg, off
prealloc [\reg, \off]
.endm
.macro PREFETCHW_INSTR reg, off
prefetchw [\reg, \off]
.endm
#else
.macro PREALLOC_INSTR
.endm
.macro PREFETCHW_INSTR
.endm
#endif
ENTRY_CFI(memset) ENTRY_CFI(memset)
prefetchw [r0] ; Prefetch the write location PREFETCHW_INSTR r0, 0 ; Prefetch the first write location
mov.f 0, r2 mov.f 0, r2
;;; if size is zero ;;; if size is zero
jz.d [blink] jz.d [blink]
@ -48,11 +76,8 @@ ENTRY_CFI(memset)
lpnz @.Lset64bytes lpnz @.Lset64bytes
;; LOOP START ;; LOOP START
#ifdef PREALLOC_NOT_AVAIL PREALLOC_INSTR r3, 64 ; alloc next line w/o fetching
prefetchw [r3, 64] ;Prefetch the next write location
#else
prealloc [r3, 64]
#endif
#ifdef CONFIG_ARC_HAS_LL64 #ifdef CONFIG_ARC_HAS_LL64
std.ab r4, [r3, 8] std.ab r4, [r3, 8]
std.ab r4, [r3, 8] std.ab r4, [r3, 8]
@ -85,7 +110,6 @@ ENTRY_CFI(memset)
lsr.f lp_count, r2, 5 ;Last remaining max 124 bytes lsr.f lp_count, r2, 5 ;Last remaining max 124 bytes
lpnz .Lset32bytes lpnz .Lset32bytes
;; LOOP START ;; LOOP START
prefetchw [r3, 32] ;Prefetch the next write location
#ifdef CONFIG_ARC_HAS_LL64 #ifdef CONFIG_ARC_HAS_LL64
std.ab r4, [r3, 8] std.ab r4, [r3, 8]
std.ab r4, [r3, 8] std.ab r4, [r3, 8]

View File

@ -141,12 +141,17 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
*/ */
fault = handle_mm_fault(vma, address, flags); fault = handle_mm_fault(vma, address, flags);
/* If Pagefault was interrupted by SIGKILL, exit page fault "early" */
if (fatal_signal_pending(current)) { if (fatal_signal_pending(current)) {
if ((fault & VM_FAULT_ERROR) && !(fault & VM_FAULT_RETRY))
up_read(&mm->mmap_sem); /*
if (user_mode(regs)) * if fault retry, mmap_sem already relinquished by core mm
* so OK to return to user mode (with signal handled first)
*/
if (fault & VM_FAULT_RETRY) {
if (!user_mode(regs))
goto no_context;
return; return;
}
} }
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);

View File

@ -119,7 +119,8 @@ void __init setup_arch_memory(void)
*/ */
memblock_add_node(low_mem_start, low_mem_sz, 0); memblock_add_node(low_mem_start, low_mem_sz, 0);
memblock_reserve(low_mem_start, __pa(_end) - low_mem_start); memblock_reserve(CONFIG_LINUX_LINK_BASE,
__pa(_end) - CONFIG_LINUX_LINK_BASE);
#ifdef CONFIG_BLK_DEV_INITRD #ifdef CONFIG_BLK_DEV_INITRD
if (phys_initrd_size) { if (phys_initrd_size) {

View File

@ -94,6 +94,28 @@ vbat: fixedregulator0 {
regulator-boot-on; regulator-boot-on;
}; };
baseboard_3v3: fixedregulator-3v3 {
/* TPS73701DCQ */
compatible = "regulator-fixed";
regulator-name = "baseboard_3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vbat>;
regulator-always-on;
regulator-boot-on;
};
baseboard_1v8: fixedregulator-1v8 {
/* TPS73701DCQ */
compatible = "regulator-fixed";
regulator-name = "baseboard_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vbat>;
regulator-always-on;
regulator-boot-on;
};
backlight_lcd: backlight-regulator { backlight_lcd: backlight-regulator {
compatible = "regulator-fixed"; compatible = "regulator-fixed";
regulator-name = "lcd_backlight_pwr"; regulator-name = "lcd_backlight_pwr";
@ -105,7 +127,7 @@ backlight_lcd: backlight-regulator {
sound { sound {
compatible = "simple-audio-card"; compatible = "simple-audio-card";
simple-audio-card,name = "DA850/OMAP-L138 EVM"; simple-audio-card,name = "DA850-OMAPL138 EVM";
simple-audio-card,widgets = simple-audio-card,widgets =
"Line", "Line In", "Line", "Line In",
"Line", "Line Out"; "Line", "Line Out";
@ -210,10 +232,9 @@ tlv320aic3106: tlv320aic3106@18 {
/* Regulators */ /* Regulators */
IOVDD-supply = <&vdcdc2_reg>; IOVDD-supply = <&vdcdc2_reg>;
/* Derived from VBAT: Baseboard 3.3V / 1.8V */ AVDD-supply = <&baseboard_3v3>;
AVDD-supply = <&vbat>; DRVDD-supply = <&baseboard_3v3>;
DRVDD-supply = <&vbat>; DVDD-supply = <&baseboard_1v8>;
DVDD-supply = <&vbat>;
}; };
tca6416: gpio@20 { tca6416: gpio@20 {
compatible = "ti,tca6416"; compatible = "ti,tca6416";

View File

@ -39,9 +39,39 @@ dsp_memory_region: dsp-memory@c3000000 {
}; };
}; };
vcc_5vd: fixedregulator-vcc_5vd {
compatible = "regulator-fixed";
regulator-name = "vcc_5vd";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-boot-on;
};
vcc_3v3d: fixedregulator-vcc_3v3d {
/* TPS650250 - VDCDC1 */
compatible = "regulator-fixed";
regulator-name = "vcc_3v3d";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vcc_5vd>;
regulator-always-on;
regulator-boot-on;
};
vcc_1v8d: fixedregulator-vcc_1v8d {
/* TPS650250 - VDCDC2 */
compatible = "regulator-fixed";
regulator-name = "vcc_1v8d";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vcc_5vd>;
regulator-always-on;
regulator-boot-on;
};
sound { sound {
compatible = "simple-audio-card"; compatible = "simple-audio-card";
simple-audio-card,name = "DA850/OMAP-L138 LCDK"; simple-audio-card,name = "DA850-OMAPL138 LCDK";
simple-audio-card,widgets = simple-audio-card,widgets =
"Line", "Line In", "Line", "Line In",
"Line", "Line Out"; "Line", "Line Out";
@ -221,6 +251,12 @@ tlv320aic3106: tlv320aic3106@18 {
compatible = "ti,tlv320aic3106"; compatible = "ti,tlv320aic3106";
reg = <0x18>; reg = <0x18>;
status = "okay"; status = "okay";
/* Regulators */
IOVDD-supply = <&vcc_3v3d>;
AVDD-supply = <&vcc_3v3d>;
DRVDD-supply = <&vcc_3v3d>;
DVDD-supply = <&vcc_1v8d>;
}; };
}; };

View File

@ -36,8 +36,8 @@ gpio_fan {
compatible = "gpio-fan"; compatible = "gpio-fan";
pinctrl-0 = <&pmx_fan_high_speed &pmx_fan_low_speed>; pinctrl-0 = <&pmx_fan_high_speed &pmx_fan_low_speed>;
pinctrl-names = "default"; pinctrl-names = "default";
gpios = <&gpio1 14 GPIO_ACTIVE_LOW gpios = <&gpio1 14 GPIO_ACTIVE_HIGH
&gpio1 13 GPIO_ACTIVE_LOW>; &gpio1 13 GPIO_ACTIVE_HIGH>;
gpio-fan,speed-map = <0 0 gpio-fan,speed-map = <0 0
3000 1 3000 1
6000 2>; 6000 2>;

View File

@ -1 +1,95 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_ARM_XEN_PAGE_COHERENT_H
#define _ASM_ARM_XEN_PAGE_COHERENT_H
#include <linux/dma-mapping.h>
#include <asm/page.h>
#include <xen/arm/page-coherent.h> #include <xen/arm/page-coherent.h>
static inline const struct dma_map_ops *xen_get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dev_dma_ops)
return dev->archdata.dev_dma_ops;
return get_arch_dma_ops(NULL);
}
static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, gfp_t flags, unsigned long attrs)
{
return xen_get_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs);
}
static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
void *cpu_addr, dma_addr_t dma_handle, unsigned long attrs)
{
xen_get_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
}
static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
dma_addr_t dev_addr, unsigned long offset, size_t size,
enum dma_data_direction dir, unsigned long attrs)
{
unsigned long page_pfn = page_to_xen_pfn(page);
unsigned long dev_pfn = XEN_PFN_DOWN(dev_addr);
unsigned long compound_pages =
(1<<compound_order(page)) * XEN_PFN_PER_PAGE;
bool local = (page_pfn <= dev_pfn) &&
(dev_pfn - page_pfn < compound_pages);
/*
* Dom0 is mapped 1:1, while the Linux page can span across
* multiple Xen pages, it's not possible for it to contain a
* mix of local and foreign Xen pages. So if the first xen_pfn
* == mfn the page is local otherwise it's a foreign page
* grant-mapped in dom0. If the page is local we can safely
* call the native dma_ops function, otherwise we call the xen
* specific function.
*/
if (local)
xen_get_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
else
__xen_dma_map_page(hwdev, page, dev_addr, offset, size, dir, attrs);
}
static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
size_t size, enum dma_data_direction dir, unsigned long attrs)
{
unsigned long pfn = PFN_DOWN(handle);
/*
* Dom0 is mapped 1:1, while the Linux page can be spanned accross
* multiple Xen page, it's not possible to have a mix of local and
* foreign Xen page. Dom0 is mapped 1:1, so calling pfn_valid on a
* foreign mfn will always return false. If the page is local we can
* safely call the native dma_ops function, otherwise we call the xen
* specific function.
*/
if (pfn_valid(pfn)) {
if (xen_get_dma_ops(hwdev)->unmap_page)
xen_get_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs);
} else
__xen_dma_unmap_page(hwdev, handle, size, dir, attrs);
}
static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
unsigned long pfn = PFN_DOWN(handle);
if (pfn_valid(pfn)) {
if (xen_get_dma_ops(hwdev)->sync_single_for_cpu)
xen_get_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir);
} else
__xen_dma_sync_single_for_cpu(hwdev, handle, size, dir);
}
static inline void xen_dma_sync_single_for_device(struct device *hwdev,
dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
unsigned long pfn = PFN_DOWN(handle);
if (pfn_valid(pfn)) {
if (xen_get_dma_ops(hwdev)->sync_single_for_device)
xen_get_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir);
} else
__xen_dma_sync_single_for_device(hwdev, handle, size, dir);
}
#endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */

View File

@ -208,9 +208,9 @@ static struct gpiod_lookup_table mmc_gpios_table = {
.dev_id = "da830-mmc.0", .dev_id = "da830-mmc.0",
.table = { .table = {
/* gpio chip 1 contains gpio range 32-63 */ /* gpio chip 1 contains gpio range 32-63 */
GPIO_LOOKUP("davinci_gpio.0", DA830_MMCSD_CD_PIN, "cd", GPIO_LOOKUP("davinci_gpio", DA830_MMCSD_CD_PIN, "cd",
GPIO_ACTIVE_LOW), GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA830_MMCSD_WP_PIN, "wp", GPIO_LOOKUP("davinci_gpio", DA830_MMCSD_WP_PIN, "wp",
GPIO_ACTIVE_LOW), GPIO_ACTIVE_LOW),
}, },
}; };

View File

@ -805,9 +805,9 @@ static struct gpiod_lookup_table mmc_gpios_table = {
.dev_id = "da830-mmc.0", .dev_id = "da830-mmc.0",
.table = { .table = {
/* gpio chip 2 contains gpio range 64-95 */ /* gpio chip 2 contains gpio range 64-95 */
GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_CD_PIN, "cd", GPIO_LOOKUP("davinci_gpio", DA850_MMCSD_CD_PIN, "cd",
GPIO_ACTIVE_LOW), GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_WP_PIN, "wp", GPIO_LOOKUP("davinci_gpio", DA850_MMCSD_WP_PIN, "wp",
GPIO_ACTIVE_HIGH), GPIO_ACTIVE_HIGH),
}, },
}; };

View File

@ -117,9 +117,9 @@ static struct platform_device davinci_nand_device = {
static struct gpiod_lookup_table i2c_recovery_gpiod_table = { static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
.dev_id = "i2c_davinci.1", .dev_id = "i2c_davinci.1",
.table = { .table = {
GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SDA_PIN, "sda", GPIO_LOOKUP("davinci_gpio", DM355_I2C_SDA_PIN, "sda",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SCL_PIN, "scl", GPIO_LOOKUP("davinci_gpio", DM355_I2C_SCL_PIN, "scl",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
}, },
}; };

View File

@ -660,9 +660,9 @@ static struct i2c_board_info __initdata i2c_info[] = {
static struct gpiod_lookup_table i2c_recovery_gpiod_table = { static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
.dev_id = "i2c_davinci.1", .dev_id = "i2c_davinci.1",
.table = { .table = {
GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SDA_PIN, "sda", GPIO_LOOKUP("davinci_gpio", DM644X_I2C_SDA_PIN, "sda",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SCL_PIN, "scl", GPIO_LOOKUP("davinci_gpio", DM644X_I2C_SCL_PIN, "scl",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
}, },
}; };

View File

@ -134,9 +134,9 @@ static const short hawk_mmcsd0_pins[] = {
static struct gpiod_lookup_table mmc_gpios_table = { static struct gpiod_lookup_table mmc_gpios_table = {
.dev_id = "da830-mmc.0", .dev_id = "da830-mmc.0",
.table = { .table = {
GPIO_LOOKUP("davinci_gpio.0", DA850_HAWK_MMCSD_CD_PIN, "cd", GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_CD_PIN, "cd",
GPIO_ACTIVE_LOW), GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA850_HAWK_MMCSD_WP_PIN, "wp", GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_WP_PIN, "wp",
GPIO_ACTIVE_LOW), GPIO_ACTIVE_LOW),
}, },
}; };

View File

@ -390,10 +390,14 @@ static int __ref impd1_probe(struct lm_device *dev)
char *mmciname; char *mmciname;
lookup = devm_kzalloc(&dev->dev, lookup = devm_kzalloc(&dev->dev,
sizeof(*lookup) + 3 * sizeof(struct gpiod_lookup), struct_size(lookup, table, 3),
GFP_KERNEL); GFP_KERNEL);
chipname = devm_kstrdup(&dev->dev, devname, GFP_KERNEL); chipname = devm_kstrdup(&dev->dev, devname, GFP_KERNEL);
mmciname = kasprintf(GFP_KERNEL, "lm%x:00700", dev->id); mmciname = devm_kasprintf(&dev->dev, GFP_KERNEL,
"lm%x:00700", dev->id);
if (!lookup || !chipname || !mmciname)
return -ENOMEM;
lookup->dev_id = mmciname; lookup->dev_id = mmciname;
/* /*
* Offsets on GPIO block 1: * Offsets on GPIO block 1:

View File

@ -32,6 +32,8 @@ void __iomem *rst_manager_base_addr;
void __iomem *sdr_ctl_base_addr; void __iomem *sdr_ctl_base_addr;
unsigned long socfpga_cpu1start_addr; unsigned long socfpga_cpu1start_addr;
extern void __init socfpga_reset_init(void);
static void __init socfpga_sysmgr_init(void) static void __init socfpga_sysmgr_init(void)
{ {
struct device_node *np; struct device_node *np;
@ -64,6 +66,7 @@ static void __init socfpga_init_irq(void)
if (IS_ENABLED(CONFIG_EDAC_ALTERA_OCRAM)) if (IS_ENABLED(CONFIG_EDAC_ALTERA_OCRAM))
socfpga_init_ocram_ecc(); socfpga_init_ocram_ecc();
socfpga_reset_init();
} }
static void __init socfpga_arria10_init_irq(void) static void __init socfpga_arria10_init_irq(void)
@ -74,6 +77,7 @@ static void __init socfpga_arria10_init_irq(void)
socfpga_init_arria10_l2_ecc(); socfpga_init_arria10_l2_ecc();
if (IS_ENABLED(CONFIG_EDAC_ALTERA_OCRAM)) if (IS_ENABLED(CONFIG_EDAC_ALTERA_OCRAM))
socfpga_init_arria10_ocram_ecc(); socfpga_init_arria10_ocram_ecc();
socfpga_reset_init();
} }
static void socfpga_cyclone5_restart(enum reboot_mode mode, const char *cmd) static void socfpga_cyclone5_restart(enum reboot_mode mode, const char *cmd)

View File

@ -183,7 +183,7 @@ &cp0_pcie0 {
pinctrl-0 = <&cp0_pcie_pins>; pinctrl-0 = <&cp0_pcie_pins>;
num-lanes = <4>; num-lanes = <4>;
num-viewport = <8>; num-viewport = <8>;
reset-gpio = <&cp0_gpio1 20 GPIO_ACTIVE_LOW>; reset-gpios = <&cp0_gpio2 20 GPIO_ACTIVE_LOW>;
status = "okay"; status = "okay";
}; };

View File

@ -28,6 +28,23 @@ psci {
method = "smc"; method = "smc";
}; };
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
/*
* This area matches the mapping done with a
* mainline U-Boot, and should be updated by the
* bootloader.
*/
psci-area@4000000 {
reg = <0x0 0x4000000 0x0 0x200000>;
no-map;
};
};
ap806 { ap806 {
#address-cells = <2>; #address-cells = <2>;
#size-cells = <2>; #size-cells = <2>;

View File

@ -506,11 +506,15 @@ CONFIG_SND_SOC_ROCKCHIP=m
CONFIG_SND_SOC_ROCKCHIP_SPDIF=m CONFIG_SND_SOC_ROCKCHIP_SPDIF=m
CONFIG_SND_SOC_ROCKCHIP_RT5645=m CONFIG_SND_SOC_ROCKCHIP_RT5645=m
CONFIG_SND_SOC_RK3399_GRU_SOUND=m CONFIG_SND_SOC_RK3399_GRU_SOUND=m
CONFIG_SND_MESON_AXG_SOUND_CARD=m
CONFIG_SND_SOC_SAMSUNG=y CONFIG_SND_SOC_SAMSUNG=y
CONFIG_SND_SOC_RCAR=m CONFIG_SND_SOC_RCAR=m
CONFIG_SND_SOC_AK4613=m CONFIG_SND_SOC_AK4613=m
CONFIG_SND_SIMPLE_CARD=m CONFIG_SND_SIMPLE_CARD=m
CONFIG_SND_AUDIO_GRAPH_CARD=m CONFIG_SND_AUDIO_GRAPH_CARD=m
CONFIG_SND_SOC_ES7134=m
CONFIG_SND_SOC_ES7241=m
CONFIG_SND_SOC_TAS571X=m
CONFIG_I2C_HID=m CONFIG_I2C_HID=m
CONFIG_USB=y CONFIG_USB=y
CONFIG_USB_OTG=y CONFIG_USB_OTG=y

View File

@ -2,7 +2,7 @@
#ifndef __ASM_PROTOTYPES_H #ifndef __ASM_PROTOTYPES_H
#define __ASM_PROTOTYPES_H #define __ASM_PROTOTYPES_H
/* /*
* CONFIG_MODEVERIONS requires a C declaration to generate the appropriate CRC * CONFIG_MODVERSIONS requires a C declaration to generate the appropriate CRC
* for each symbol. Since commit: * for each symbol. Since commit:
* *
* 4efca4ed05cbdfd1 ("kbuild: modversions for EXPORT_SYMBOL() for asm") * 4efca4ed05cbdfd1 ("kbuild: modversions for EXPORT_SYMBOL() for asm")

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