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932,869 commits

Author SHA1 Message Date
Masahiro Yamada
75889e9be7 kconfig: remove unneeded setsym label in conf_read_simple()
The two 'goto setsym' statements are reachable only when sym == NULL.

The code below the 'setsym:' label does nothing when sym == NULL
since there is just one if-block guarded by 'if (sym && ...)'.

Hence, 'goto setsym' can be replaced with 'continue'.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-08 10:40:52 +09:00
David S. Miller
83af01ba1c Merge branch 'tc-testing-next'
Lucas Bates says:

====================
tc-testing: implement command timeouts and better results tracking

Patch 1 adds a timeout feature for any command tdc launches in a subshell.
This prevents tdc from hanging indefinitely.

Patches 2-4 introduce a new method for tracking and generating test case
results, and implements it across the core script and all applicable
plugins.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:39:03 -08:00
Lucas Bates
8d189159ac tc-testing: gitignore, ignore generated test results
Ignore any .tap or .xml test result files generated by tdc.

Additionally, ignore plugin symlinks.

Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:39:03 -08:00
Lucas Bates
915c158dea tc-testing: Implement the TdcResults module in tdc
In tdc and the valgrind plugin, begin using the TdcResults module
to track executed test cases.

Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:39:03 -08:00
Lucas Bates
dfe465d33e tc-testing: Add new TdcResults module
This module includes new classes for tdc to use in keeping track
of test case results, instead of generating and tracking a lengthy
string.

The new module can be extended to support multiple formal
test result formats to be friendlier to automation.

Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:39:03 -08:00
Lucas Bates
d37e56df23 tc-testing: Add command timeout feature to tdc
Using an attribute set in the tdc_config.py file, limit the
amount of time tdc will wait for an executed command to
complete and prevent the script from hanging entirely.

This timeout will be applied to all executed commands.

Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:39:03 -08:00
David S. Miller
8b78903bc5 Merge branch 'skb-headroom-slab-out-of-bounds'
Stefano Brivio says:

====================
Fix slab out-of-bounds on insufficient headroom for IPv6 packets

Patch 1/2 fixes a slab out-of-bounds occurring with short SCTP packets over
IPv4 over L2TP over IPv6 on a configuration with relatively low HEADER_MAX.

Patch 2/2 makes sure we avoid writing before the allocated buffer in
neigh_hh_output() in case the headroom is enough for the unaligned hardware
header size, but not enough for the aligned one, and that we warn if we hit
this condition.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:24:40 -08:00
Stefano Brivio
e6ac64d4c4 neighbour: Avoid writing before skb->head in neigh_hh_output()
While skb_push() makes the kernel panic if the skb headroom is less than
the unaligned hardware header size, it will proceed normally in case we
copy more than that because of alignment, and we'll silently corrupt
adjacent slabs.

In the case fixed by the previous patch,
"ipv6: Check available headroom in ip6_xmit() even without options", we
end up in neigh_hh_output() with 14 bytes headroom, 14 bytes hardware
header and write 16 bytes, starting 2 bytes before the allocated buffer.

Always check we're not writing before skb->head and, if the headroom is
not enough, warn and drop the packet.

v2:
 - instead of panicking with BUG_ON(), WARN_ON_ONCE() and drop the packet
   (Eric Dumazet)
 - if we avoid the panic, though, we need to explicitly check the headroom
   before the memcpy(), otherwise we'll have corrupted slabs on a running
   kernel, after we warn
 - use __skb_push() instead of skb_push(), as the headroom check is
   already implemented here explicitly (Eric Dumazet)

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:24:40 -08:00
Stefano Brivio
66033f47ca ipv6: Check available headroom in ip6_xmit() even without options
Even if we send an IPv6 packet without options, MAX_HEADER might not be
enough to account for the additional headroom required by alignment of
hardware headers.

On a configuration without HYPERV_NET, WLAN, AX25, and with IPV6_TUNNEL,
sending short SCTP packets over IPv4 over L2TP over IPv6, we start with
100 bytes of allocated headroom in sctp_packet_transmit(), end up with 54
bytes after l2tp_xmit_skb(), and 14 bytes in ip6_finish_output2().

Those would be enough to append our 14 bytes header, but we're going to
align that to 16 bytes, and write 2 bytes out of the allocated slab in
neigh_hh_output().

KASan says:

[  264.967848] ==================================================================
[  264.967861] BUG: KASAN: slab-out-of-bounds in ip6_finish_output2+0x1aec/0x1c70
[  264.967866] Write of size 16 at addr 000000006af1c7fe by task netperf/6201
[  264.967870]
[  264.967876] CPU: 0 PID: 6201 Comm: netperf Not tainted 4.20.0-rc4+ #1
[  264.967881] Hardware name: IBM 2827 H43 400 (z/VM 6.4.0)
[  264.967887] Call Trace:
[  264.967896] ([<00000000001347d6>] show_stack+0x56/0xa0)
[  264.967903]  [<00000000017e379c>] dump_stack+0x23c/0x290
[  264.967912]  [<00000000007bc594>] print_address_description+0xf4/0x290
[  264.967919]  [<00000000007bc8fc>] kasan_report+0x13c/0x240
[  264.967927]  [<000000000162f5e4>] ip6_finish_output2+0x1aec/0x1c70
[  264.967935]  [<000000000163f890>] ip6_finish_output+0x430/0x7f0
[  264.967943]  [<000000000163fe44>] ip6_output+0x1f4/0x580
[  264.967953]  [<000000000163882a>] ip6_xmit+0xfea/0x1ce8
[  264.967963]  [<00000000017396e2>] inet6_csk_xmit+0x282/0x3f8
[  264.968033]  [<000003ff805fb0ba>] l2tp_xmit_skb+0xe02/0x13e0 [l2tp_core]
[  264.968037]  [<000003ff80631192>] l2tp_eth_dev_xmit+0xda/0x150 [l2tp_eth]
[  264.968041]  [<0000000001220020>] dev_hard_start_xmit+0x268/0x928
[  264.968069]  [<0000000001330e8e>] sch_direct_xmit+0x7ae/0x1350
[  264.968071]  [<000000000122359c>] __dev_queue_xmit+0x2b7c/0x3478
[  264.968075]  [<00000000013d2862>] ip_finish_output2+0xce2/0x11a0
[  264.968078]  [<00000000013d9b14>] ip_finish_output+0x56c/0x8c8
[  264.968081]  [<00000000013ddd1e>] ip_output+0x226/0x4c0
[  264.968083]  [<00000000013dbd6c>] __ip_queue_xmit+0x894/0x1938
[  264.968100]  [<000003ff80bc3a5c>] sctp_packet_transmit+0x29d4/0x3648 [sctp]
[  264.968116]  [<000003ff80b7bf68>] sctp_outq_flush_ctrl.constprop.5+0x8d0/0xe50 [sctp]
[  264.968131]  [<000003ff80b7c716>] sctp_outq_flush+0x22e/0x7d8 [sctp]
[  264.968146]  [<000003ff80b35c68>] sctp_cmd_interpreter.isra.16+0x530/0x6800 [sctp]
[  264.968161]  [<000003ff80b3410a>] sctp_do_sm+0x222/0x648 [sctp]
[  264.968177]  [<000003ff80bbddac>] sctp_primitive_ASSOCIATE+0xbc/0xf8 [sctp]
[  264.968192]  [<000003ff80b93328>] __sctp_connect+0x830/0xc20 [sctp]
[  264.968208]  [<000003ff80bb11ce>] sctp_inet_connect+0x2e6/0x378 [sctp]
[  264.968212]  [<0000000001197942>] __sys_connect+0x21a/0x450
[  264.968215]  [<000000000119aff8>] sys_socketcall+0x3d0/0xb08
[  264.968218]  [<000000000184ea7a>] system_call+0x2a2/0x2c0

[...]

Just like ip_finish_output2() does for IPv4, check that we have enough
headroom in ip6_xmit(), and reallocate it if we don't.

This issue is older than git history.

Reported-by: Jianlin Shi <jishi@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:24:40 -08:00
Eric Dumazet
f9bfe4e6a9 tcp: lack of available data can also cause TSO defer
tcp_tso_should_defer() can return true in three different cases :

 1) We are cwnd-limited
 2) We are rwnd-limited
 3) We are application limited.

Neal pointed out that my recent fix went too far, since
it assumed that if we were not in 1) case, we must be rwnd-limited

Fix this by properly populating the is_cwnd_limited and
is_rwnd_limited booleans.

After this change, we can finally move the silly check for FIN
flag only for the application-limited case.

The same move for EOR bit will be handled in net-next,
since commit 1c09f7d073 ("tcp: do not try to defer skbs
with eor mark (MSG_EOR)") is scheduled for linux-4.21

Tested by running 200 concurrent netperf -t TCP_RR -- -r 60000,100
and checking none of them was rwnd_limited in the chrono_stat
output from "ss -ti" command.

Fixes: 41727549de ("tcp: Do not underestimate rwnd_limited")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:18:22 -08:00
yupeng
0fbe82e628 net: call sk_dst_reset when set SO_DONTROUTE
after set SO_DONTROUTE to 1, the IP layer should not route packets if
the dest IP address is not in link scope. But if the socket has cached
the dst_entry, such packets would be routed until the sk_dst_cache
expires. So we should clean the sk_dst_cache when a user set
SO_DONTROUTE option. Below are server/client python scripts which
could reprodue this issue:

server side code:

==========================================================================
import socket
import struct
import time

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('0.0.0.0', 9000))
s.listen(1)
sock, addr = s.accept()
sock.setsockopt(socket.SOL_SOCKET, socket.SO_DONTROUTE, struct.pack('i', 1))
while True:
    sock.send(b'foo')
    time.sleep(1)
==========================================================================

client side code:
==========================================================================
import socket
import time

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('server_address', 9000))
while True:
    data = s.recv(1024)
    print(data)
==========================================================================

Signed-off-by: yupeng <yupeng0921@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:11:54 -08:00
David Ahern
58956317c8 neighbor: Improve garbage collection
The existing garbage collection algorithm has a number of problems:

1. The gc algorithm will not evict PERMANENT entries as those entries
   are managed by userspace, yet the existing algorithm walks the entire
   hash table which means it always considers PERMANENT entries when
   looking for entries to evict. In some use cases (e.g., EVPN) there
   can be tens of thousands of PERMANENT entries leading to wasted
   CPU cycles when gc kicks in. As an example, with 32k permanent
   entries, neigh_alloc has been observed taking more than 4 msec per
   invocation.

2. Currently, when the number of neighbor entries hits gc_thresh2 and
   the last flush for the table was more than 5 seconds ago gc kicks in
   walks the entire hash table evicting *all* entries not in PERMANENT
   or REACHABLE state and not marked as externally learned. There is no
   discriminator on when the neigh entry was created or if it just moved
   from REACHABLE to another NUD_VALID state (e.g., NUD_STALE).

   It is possible for entries to be created or for established neighbor
   entries to be moved to STALE (e.g., an external node sends an ARP
   request) right before the 5 second window lapses:

        -----|---------x|----------|-----
            t-5         t         t+5

   If that happens those entries are evicted during gc causing unnecessary
   thrashing on neighbor entries and userspace caches trying to track them.

   Further, this contradicts the description of gc_thresh2 which says
   "Entries older than 5 seconds will be cleared".

   One workaround is to make gc_thresh2 == gc_thresh3 but that negates the
   whole point of having separate thresholds.

3. Clearing *all* neigh non-PERMANENT/REACHABLE/externally learned entries
   when gc_thresh2 is exceeded is over kill and contributes to trashing
   especially during startup.

This patch addresses these problems as follows:

1. Use of a separate list_head to track entries that can be garbage
   collected along with a separate counter. PERMANENT entries are not
   added to this list.

   The gc_thresh parameters are only compared to the new counter, not the
   total entries in the table. The forced_gc function is updated to only
   walk this new gc_list looking for entries to evict.

2. Entries are added to the list head at the tail and removed from the
   front.

3. Entries are only evicted if they were last updated more than 5 seconds
   ago, adhering to the original intent of gc_thresh2.

4. Forced gc is stopped once the number of gc_entries drops below
   gc_thresh2.

5. Since gc checks do not apply to PERMANENT entries, gc levels are skipped
   when allocating a new neighbor for a PERMANENT entry. By extension this
   means there are no explicit limits on the number of PERMANENT entries
   that can be created, but this is no different than FIB entries or FDB
   entries.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 16:03:10 -08:00
David S. Miller
12edfdfc79 Merge branch 'hns3-error-handling'
Salil Mehta says:

====================
net: hns3: Additions/optimizations related to HNS3 H/W err handling

This patch set primarily does following addtions and optimizations
related to error handling in HNS3 Ethernet driver:

 1. Name changes for enable and process functions and minor loop
    optimizations. [PATCH 1-6]
 2. Modify query and clearing of RAS errors using new set of commands
    because modules specific commands for clearing RCB PPP PF, SSU are
    obselete. [PATCH 7]
 3. Deletes logging 1-bit errors for RAS in HNS3 driver as these never
    get reported to the driver. [PATCH 8]
 4. Add handling of NIC hw errors reported through MSIx rather than
    PCIe AER channel. [PATCH 9]
 5. Add handling for the HW RAS and MSIx errors in the modules MAC, PPP
    PF, MSIx SRAM, RCB and SSU. [PATCH 10-13]
 6. Add handling of RoCEE RAS errors. [PATCH 14]
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:02 -08:00
Shiju Jose
630ba007f4 net: hns3: add handling of RDMA RAS errors
This patch handles the RDMA RAS errors.
1. Enable RAS interrupt, print error detail info and clear error status.
2. Do CORE reset to recovery when these non-fatal errors happened.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
c3529177db net: hns3: handle hw errors of SSU
This patch enables and handles hw errors of the Storage Switch Unit(SSU).

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
f69b10b317 net: hns3: handle hw errors of PPU(RCB)
This patch enables and handles hw RAS and MSIx errors of PPU(RCB).

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
8fc9d3e3b4 net: hns3: handle hw errors of PPP PF
This patch handles PF hw errors of PPP(Programmable Packet Processor).

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
7838f908e2 net: hns3: add handling of hw errors of MAC
This patch adds enable and handling of hw errors of
the MAC block.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Salil Mehta
f6162d4412 net: hns3: add handling of hw errors reported through MSIX
This patch adds handling for HNS3 hardware errors(non-standard)
which are reported through MSIX interrupts and not through
PCIe AER channel.

These MSIX reported hardware errors are handled using common
misc. interrupt handler. Hardware error related registers
cannot be cleared in context to the interrupt received as
they require *heavy* access to hardware using IMP(Integrated
Mangement Processor) commands. Hence, we defer the clearing
of such error events till later time.

Since, we have defered exact identification of errors we
will have to defer the level of receovery/reset which
might be required. Hence, a new reset type UNKNOWN reset
has been introduced which effectively defers the assertion
of the reset till we get hold of kind of errors at later
time.

Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
8bb147927c net: hns3: deleted logging 1 bit errors
This patch deletes logging 1 bit errors for the following reasons.
1. AER does not notify 1 bit errors to the device drivers.
   However AER reports 1 bit errors to the userspace through the
   trace_aer_event for logging in the rasdaemon.
2. Firmware clears the status of 1 bit errors in the hw registers.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
332fbf5765 net: hns3: add handling of hw ras errors using new set of commands
1. This patch adds handling of hw ras errors using new set of
   common commands.
2. Updated the error message tables to match the register's name and
   error status returned by the commands.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
481a626a60 net: hns3: add optimization in the hclge_hw_error_set_state
1. This patch adds minor loop optimization in the
   hclge_hw_error_set_state function.
2. Adds logging module's name if it fails to configure the
   error interrupts.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
381c356e95 net: hns3: rename process_hw_error function
This patch renames process_hw_error function to
handle_hw_ras_error function to match the purpose
of the function. This is because hw errors reported through
ras and msix interrupts will be handled separately.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
166b04c3ee net: hns3: deletes unnecessary settings of the descriptor data
This patch deletes unnecessary setting of the descriptor data
to 0 for disabling error interrupts because
it is already done by the hclge_cmd_setup_basic_desc function.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
f3fa4a94db net: hns3: re-enable error interrupts on hw reset
This patch adds calling hclge_hw_error_set_state function
to re-enable the error interrupts those will be disabled on
the hw reset.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:01 -08:00
Shiju Jose
98da4027af net: hns3: rename enable error interrupt functions
This patch
- renames the enable error interrupt functions.
  The reason is that these functions
  are used for both enable and disable error interrupts.

- removes redundant logs from the enable error interrupt functions.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:00 -08:00
Shiju Jose
fe0f7d698d net: hns3: remove existing process error functions and reorder hw_blk table
1.The command interface for queryng and clearing hw errors is
  changed, which requires the new process error functions to be added.
  This patch removes all the current process error functions and
  associated definitions. The new functions to handle ras errors
  would be added in this patch set.

2. Fixed order issue of the hw_blk table.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-07 15:57:00 -08:00
Christian König
22666cc148 drm/amdgpu: move IV prescreening into the GMC code
The GMC/VM subsystem is causing the faults, so move the handling here as
well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 18:14:26 -05:00
Christian König
a655dad4b2 drm/amdgpu: remove VM fault_credit handling
printk_ratelimit() is much better suited to limit the number of reported
VM faults.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 18:14:20 -05:00
Christian König
2026057736 drm/amdgpu: send IVs to the KFD only after processing them v3
This allows us to filter out VM faults in the GMC code.

v2: don't filter out all faults
v3: fix copy&paste typo, send all IV to the KFD, don't change message level

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 18:14:07 -05:00
Felix Kuehling
b408a54884 drm/amdkfd: Add support for doorbell BOs
This allows user mode to map doorbell pages into GPUVM address space.
That way GPUs can submit to user mode queues (self-dispatch).

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 18:14:00 -05:00
Felix Kuehling
1dde0ea95b drm/amdkfd: Add DMABuf import functionality
This is used for interoperability between ROCm compute and graphics
APIs. It allows importing graphics driver BOs into the ROCm SVM
address space for zero-copy GPU access.

The API is split into two steps (query and import) to allow user mode
to manage the virtual address space allocation for the imported buffer.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 18:13:54 -05:00
Felix Kuehling
3704d56e1a drm/amdkfd: Add NULL-pointer check
top_dev->gpu is NULL for CPUs. Avoid dereferencing it if NULL.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 18:13:48 -05:00
Felix Kuehling
611736d844 drm/amdgpu: Add KFD VRAM limit checking
We don't want KFD processes evicting each other over VRAM usage.
Therefore prevent overcommitting VRAM among KFD applications with
a per-GPU limit. Also leave enough room for page tables on top
of the application memory usage.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 18:13:15 -05:00
Kuehling, Felix
5634e38cda drm/amdgpu: Workaround build failure due to trace conflict
Avoid including mmu_context.h in amdgpu_amdkfd.h since that may be
included in other header files that define traces. This leads to
conflicts due to traces defined in other headers included via
mmu_context.h.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:47 -05:00
hersen wu
9ed9203c3e drm/amd/powerplay: rv dal-pplib interface refactor powerplay part
[WHY] clarify dal input parameters to pplib interface, remove
un-used parameters. dal knows exactly which parameters needed
and their effects at pplib and smu sides.

current dal sequence for dcn1_update_clock to pplib:

1.smu10_display_clock_voltage_request for dcefclk
2.smu10_display_clock_voltage_request for fclk
3.phm_store_dal_configuration_data {
  set_min_deep_sleep_dcfclk
  set_active_display_count
  store_cc6_data --- this data never be referenced

new sequence will be:

1. set_display_count  --- need add new pplib interface
2. set_min_deep_sleep_dcfclk -- new pplib interface
3. set_hard_min_dcfclk_by_freq
4. set_hard_min_fclk_by_freq

after this code refactor, smu10_display_clock_voltage_request,
phm_store_dal_configuration_data will not be needed for rv.

[HOW] step 1: add new functions at pplib interface
      step 2: add new functions at amdgpu dm and dc

Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:47 -05:00
wentalou
49ebca7986 drm/amdgpu: Skip ring soft recovery when fence was NULL
amdgpu_ring_soft_recovery would have Call-Trace,
when s_fence->parent was NULL inside amdgpu_job_timedout.
Check fence first, as drm_sched_hw_job_reset did.

Signed-off-by: Wentao Lou <Wentao.Lou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:47 -05:00
Xiangliang Yu
53450efd6e drm/amdgpu/psp: Destroy psp ring when doing gpu reset
PSP ring need to be destroy before starting reinit for vf.
This patche move it from hypervisor driver into guest.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Frank Min <Frank.Min@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:46 -05:00
Xiangliang Yu
5ec996dfb6 drm/amdgpu/psp: Add support VMR ring for VF
PSP only support VMR ring for SRIOV vf since v45 and all commands will
be send to VMR ring for executing.

VMR ring use C2PMSG 101 ~ 103 instead of C2PMSG 64 ~ 71.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:46 -05:00
Xiangliang Yu
d63cda5bfc drm/amdgpu/psp: Get psp fw version through reading register
If PSP FW is running already, driver will not load PSP FW again and skip
it. So psp fw version is not correct if reading it from FW binary file,
need to get right version from register.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:46 -05:00
Christian König
07daa8a078 drm/amdgpu: always reserve one more shared slot for pipelined BO moves
This allows us to drop the extra reserve in TTM.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:45 -05:00
Christian König
0aa7aa24cc drm/amdgpu: always reserve two slots for the VM
And drop the now superflous extra reservations.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:45 -05:00
Christian König
049aca4363 drm/amdgpu: fix using shared fence for exported BOs v2
It is perfectly possible that the BO list is created before the BO is
exported. While at it clean up setting shared to one instead of true.

v2: add comment and simplify logic

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:44 -05:00
Christian König
a9f34c70fd drm/ttm: allow reserving more than one shared slot v3
Let's support simultaneous submissions to multiple engines.

v2: rename the field to num_shared and fix up all users
v3: rebased

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:44 -05:00
Aaron Liu
c50fe0c5b1 drm/amdgpu: both support PCO FP5/AM4 rlc fw
For Picasso && AM4 SOCKET board, we use picasso_rlc_am4.bin
For Picasso && FP5 SOCKET board, we use picasso_rlc.bin

Judgment method:
PCO AM4: revision >= 0xC8 && revision <= 0xCF
         or revision >= 0xD8 && revision <= 0xDF
otherwise is PCO FP5

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Reviewed-by: Huang Rui <ray.huang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:53:13 -05:00
Linus Torvalds
5f179793f0 virtio fixes
A couple of last-minute fixes.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull vhost/virtio fixes from Michael Tsirkin:
 "A couple of last-minute fixes"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost/vsock: fix use-after-free in network stack callers
  virtio/s390: fix race in ccw_io_helper()
  virtio/s390: avoid race on vcdev->config
  vhost/vsock: fix reset orphans race with close timeout
2018-12-07 14:34:10 -08:00
Alex Deucher
34c08da209 drm/amdgpu/powerplay: check MC firmware for FFC support
Check if the MC firmware supports FFC and tell the SMC so
mclk switching is handled properly.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:24:14 -05:00
Alex Deucher
c6296f5a65 drm/amdgpu/powerplay: update smu7_ppsmc.h
Add new messages for polaris.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-07 17:24:14 -05:00
Linus Torvalds
b8bf4692c9 - Avoid sending IPIs with interrupts disabled
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Avoid sending IPIs with interrupts disabled"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: hibernate: Avoid sending cross-calling with interrupts disabled
2018-12-07 14:18:49 -08:00
Carlo Caione
8b3e6f8999 arm64: dts: meson: Fix IRQ trigger type for macirq
A long running stress test on a custom board shipping an AXG SoCs and a
Realtek RTL8211F PHY revealed that after a few hours the connection
speed would drop drastically, from ~1000Mbps to ~3Mbps. At the same time
the 'macirq' (eth0) IRQ would stop being triggered at all and as
consequence the GMAC IRQs never ACKed.

After a painful investigation the problem seemed to be due to a wrong
defined IRQ type for the GMAC IRQ that should be LEVEL_HIGH instead of
EDGE_RISING.

The change in the macirq IRQ type also solved another long standing
issue affecting this SoC/PHY where EEE was causing the network
connection to die after stressing it with iperf3 (even though much
sooner). It's now possible to remove the 'eee-broken-1000t' quirk as
well.

Fixes: feb3cbea09 ("ARM64: dts: meson-gxbb-odroidc2: fix GbE tx link breakage")
Fixes: 6d28d57751 ("ARM64: dts: meson-axg: fix ethernet stability issue")
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-12-07 13:48:58 -08:00