[radeon-alex:drm-next-4.19-wip 110/115] htmldocs: drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:90: warning: Function parameter or member 'type' not described in 'amdgpu_mn'

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tree:   git://people.freedesktop.org/~agd5f/linux.git drm-next-4.19-wip
head:   69c20a808c86d7fd6cd64a9c8cc6b024a88c45fa
commit: b55f236b433d63a5c4c90c5a40c9694eb5cbff34 [110/115] drm/amdgpu: fix documentation of amdgpu_mn.c v2
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

   WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4216: warning: Function parameter or member 'wext.prev_bssid_valid' not described in 'wireless_dev'
   include/net/mac80211.h:2282: warning: Function parameter or member 'radiotap_timestamp.units_pos' not described in 'ieee80211_hw'
   include/net/mac80211.h:2282: warning: Function parameter or member 'radiotap_timestamp.accuracy' not described in 'ieee80211_hw'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.rts_cts_rate_idx' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.use_rts' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.use_cts_prot' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.short_preamble' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.skip_table' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.jiffies' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.vif' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.hw_key' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.flags' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'control.enqueue_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'ack' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'ack.cookie' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.ampdu_ack_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.ampdu_len' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.antenna' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.tx_time' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.is_valid_ack_signal' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'status.status_driver_data' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'driver_rates' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'pad' not described in 'ieee80211_tx_info'
   include/net/mac80211.h:955: warning: Function parameter or member 'rate_driver_data' not described in 'ieee80211_tx_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
   net/mac80211/sta_info.h:586: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
   kernel/sched/fair.c:3719: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
   include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_excl.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_excl.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_excl.active' not described in 'dma_buf'
   include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_shared.cb' not described in 'dma_buf'
   include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_shared.poll' not described in 'dma_buf'
   include/linux/dma-buf.h:307: warning: Function parameter or member 'cb_shared.active' not described in 'dma_buf'
   include/linux/dma-fence-array.h:54: warning: Function parameter or member 'work' not described in 'dma_fence_array'
   include/linux/gpio/driver.h:142: warning: Function parameter or member 'request_key' not described in 'gpio_irq_chip'
   include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.sign' not described in 'iio_chan_spec'
   include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.realbits' not described in 'iio_chan_spec'
   include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.storagebits' not described in 'iio_chan_spec'
   include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.shift' not described in 'iio_chan_spec'
   include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.repeat' not described in 'iio_chan_spec'
   include/linux/iio/iio.h:270: warning: Function parameter or member 'scan_type.endianness' not described in 'iio_chan_spec'
   include/linux/iio/hw-consumer.h:1: warning: no structured comments found
   include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
   include/linux/mtd/rawnand.h:752: warning: Function parameter or member 'timings.sdr' not described in 'nand_data_interface'
   include/linux/mtd/rawnand.h:817: warning: Function parameter or member 'buf' not described in 'nand_op_data_instr'
   include/linux/mtd/rawnand.h:817: warning: Function parameter or member 'buf.in' not described in 'nand_op_data_instr'
   include/linux/mtd/rawnand.h:817: warning: Function parameter or member 'buf.out' not described in 'nand_op_data_instr'
   include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx' not described in 'nand_op_instr'
   include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.cmd' not described in 'nand_op_instr'
   include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.addr' not described in 'nand_op_instr'
   include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.data' not described in 'nand_op_instr'
   include/linux/mtd/rawnand.h:863: warning: Function parameter or member 'ctx.waitrdy' not described in 'nand_op_instr'
   include/linux/mtd/rawnand.h:1010: warning: Function parameter or member 'ctx' not described in 'nand_op_parser_pattern_elem'
   include/linux/mtd/rawnand.h:1010: warning: Function parameter or member 'ctx.addr' not described in 'nand_op_parser_pattern_elem'
   include/linux/mtd/rawnand.h:1010: warning: Function parameter or member 'ctx.data' not described in 'nand_op_parser_pattern_elem'
   include/linux/mtd/rawnand.h:1313: warning: Function parameter or member 'manufacturer.desc' not described in 'nand_chip'
   include/linux/mtd/rawnand.h:1313: warning: Function parameter or member 'manufacturer.priv' not described in 'nand_chip'
   include/linux/regulator/driver.h:222: warning: Function parameter or member 'resume_early' not described in 'regulator_ops'
   drivers/regulator/core.c:4306: warning: Excess function parameter 'state' description in 'regulator_suspend_late'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw0' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw1' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw2' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.esw3' not described in 'irb'
   arch/s390/include/asm/cio.h:245: warning: Function parameter or member 'esw.eadm' not described in 'irb'
   drivers/usb/typec/mux.c:186: warning: Function parameter or member 'mux' not described in 'typec_mux_unregister'
   drivers/usb/typec/mux.c:186: warning: Excess function parameter 'sw' description in 'typec_mux_unregister'
>> drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:90: warning: Function parameter or member 'type' not described in 'amdgpu_mn'
>> drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:282: warning: Function parameter or member 'mm' not described in 'amdgpu_mn_invalidate_range_start_hsa'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver'
   include/drm/drm_drv.h:610: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver'
   drivers/gpu/drm/i915/i915_vma.h:48: warning: cannot understand function prototype: 'struct i915_vma '
   drivers/gpu/drm/i915/i915_vma.h:1: warning: no structured comments found
   include/drm/tinydrm/tinydrm.h:34: warning: Function parameter or member 'fb_dirty' not described in 'tinydrm_device'
   drivers/gpu/drm/tinydrm/mipi-dbi.c:272: warning: Function parameter or member 'crtc_state' not described in 'mipi_dbi_enable_flush'
   drivers/gpu/drm/tinydrm/mipi-dbi.c:272: warning: Function parameter or member 'plane_state' not described in 'mipi_dbi_enable_flush'
   include/media/v4l2-dev.h:42: warning: Enum value 'VFL_TYPE_MAX' not described in enum 'vfl_devnode_type'
   include/linux/skbuff.h:850: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'skb_mstamp' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member '__unused' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'pfmemalloc' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'offload_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'offload_mr_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
   include/linux/skbuff.h:850: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff'
   include/net/sock.h:234: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_portpair' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_cookie' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_listener' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common'
   include/net/sock.h:234: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common'
   include/net/sock.h:488: warning: Function parameter or member 'sk_backlog.rmem_alloc' not described in 'sock'
   include/net/sock.h:488: warning: Function parameter or member 'sk_backlog.len' not described in 'sock'
   include/net/sock.h:488: warning: Function parameter or member 'sk_backlog.head' not described in 'sock'
   include/net/sock.h:488: warning: Function parameter or member 'sk_backlog.tail' not described in 'sock'
   include/net/sock.h:488: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
   include/net/sock.h:488: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
   include/net/sock.h:488: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'adj_list.upper' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'adj_list.lower' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'switchdev_ops' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member '____cacheline_aligned_in_smp' not described in 'net_device'
   include/linux/netdevice.h:1955: warning: Function parameter or member 'qdisc_hash' not described in 'net_device'
   include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state'
   include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state'
   include/linux/rcupdate.h:572: ERROR: Unexpected indentation.
   include/linux/rcupdate.h:576: ERROR: Unexpected indentation.
   include/linux/rcupdate.h:580: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/rcupdate.h:582: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/rcupdate.h:582: WARNING: Inline literal start-string without end-string.
   Documentation/crypto/crypto_engine.rst:13: ERROR: Unexpected indentation.
   Documentation/crypto/crypto_engine.rst:15: WARNING: Block quote ends without a blank line; unexpected unindent.
   kernel/time/timer.c:1259: ERROR: Unexpected indentation.
   kernel/time/timer.c:1261: ERROR: Unexpected indentation.
   kernel/time/timer.c:1262: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/wait.h:110: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/wait.h:113: ERROR: Unexpected indentation.
   include/linux/wait.h:115: WARNING: Block quote ends without a blank line; unexpected unindent.
   kernel/time/hrtimer.c:1129: WARNING: Block quote ends without a blank line; unexpected unindent.
   kernel/signal.c:327: WARNING: Inline literal start-string without end-string.
   Documentation/driver-api/device_connection.rst:42: ERROR: Error in "kernel-doc" directive:
   maximum 4 argument(s) allowed, 7 supplied.

vim +90 drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c

d38ceaf9 Alex Deucher    2015-04-20  @90  
b55f236b Christian König 2018-06-05   91  /**
b55f236b Christian König 2018-06-05   92   * struct amdgpu_mn_node
b55f236b Christian König 2018-06-05   93   *
b55f236b Christian König 2018-06-05   94   * @it: interval node defining start-last of the affected address range
b55f236b Christian König 2018-06-05   95   * @bos: list of all BOs in the affected address range
b55f236b Christian König 2018-06-05   96   *
b55f236b Christian König 2018-06-05   97   * Manages all BOs which are affected of a certain range of address space.
b55f236b Christian König 2018-06-05   98   */
d38ceaf9 Alex Deucher    2015-04-20   99  struct amdgpu_mn_node {
d38ceaf9 Alex Deucher    2015-04-20  100  	struct interval_tree_node	it;
d38ceaf9 Alex Deucher    2015-04-20  101  	struct list_head		bos;
d38ceaf9 Alex Deucher    2015-04-20  102  };
d38ceaf9 Alex Deucher    2015-04-20  103  
d38ceaf9 Alex Deucher    2015-04-20  104  /**
b55f236b Christian König 2018-06-05  105   * amdgpu_mn_destroy - destroy the MMU notifier
d38ceaf9 Alex Deucher    2015-04-20  106   *
d38ceaf9 Alex Deucher    2015-04-20  107   * @work: previously sheduled work item
d38ceaf9 Alex Deucher    2015-04-20  108   *
d38ceaf9 Alex Deucher    2015-04-20  109   * Lazy destroys the notifier from a work item
d38ceaf9 Alex Deucher    2015-04-20  110   */
d38ceaf9 Alex Deucher    2015-04-20  111  static void amdgpu_mn_destroy(struct work_struct *work)
d38ceaf9 Alex Deucher    2015-04-20  112  {
b593fc01 Christian König 2018-06-13  113  	struct amdgpu_mn *amn = container_of(work, struct amdgpu_mn, work);
b593fc01 Christian König 2018-06-13  114  	struct amdgpu_device *adev = amn->adev;
d38ceaf9 Alex Deucher    2015-04-20  115  	struct amdgpu_mn_node *node, *next_node;
d38ceaf9 Alex Deucher    2015-04-20  116  	struct amdgpu_bo *bo, *next_bo;
d38ceaf9 Alex Deucher    2015-04-20  117  
d38ceaf9 Alex Deucher    2015-04-20  118  	mutex_lock(&adev->mn_lock);
b593fc01 Christian König 2018-06-13  119  	down_write(&amn->lock);
b593fc01 Christian König 2018-06-13  120  	hash_del(&amn->node);
f808c13f Davidlohr Bueso 2017-09-08  121  	rbtree_postorder_for_each_entry_safe(node, next_node,
b593fc01 Christian König 2018-06-13  122  					     &amn->objects.rb_root, it.rb) {
d38ceaf9 Alex Deucher    2015-04-20  123  		list_for_each_entry_safe(bo, next_bo, &node->bos, mn_list) {
d38ceaf9 Alex Deucher    2015-04-20  124  			bo->mn = NULL;
d38ceaf9 Alex Deucher    2015-04-20  125  			list_del_init(&bo->mn_list);
d38ceaf9 Alex Deucher    2015-04-20  126  		}
d38ceaf9 Alex Deucher    2015-04-20  127  		kfree(node);
d38ceaf9 Alex Deucher    2015-04-20  128  	}
b593fc01 Christian König 2018-06-13  129  	up_write(&amn->lock);
b8ea3783 Felix Kuehling  2016-02-16  130  	mutex_unlock(&adev->mn_lock);
b593fc01 Christian König 2018-06-13  131  	mmu_notifier_unregister_no_release(&amn->mn, amn->mm);
b593fc01 Christian König 2018-06-13  132  	kfree(amn);
d38ceaf9 Alex Deucher    2015-04-20  133  }
d38ceaf9 Alex Deucher    2015-04-20  134  
d38ceaf9 Alex Deucher    2015-04-20  135  /**
d38ceaf9 Alex Deucher    2015-04-20  136   * amdgpu_mn_release - callback to notify about mm destruction
d38ceaf9 Alex Deucher    2015-04-20  137   *
d38ceaf9 Alex Deucher    2015-04-20  138   * @mn: our notifier
b55f236b Christian König 2018-06-05  139   * @mm: the mm this callback is about
d38ceaf9 Alex Deucher    2015-04-20  140   *
d38ceaf9 Alex Deucher    2015-04-20  141   * Shedule a work item to lazy destroy our notifier.
d38ceaf9 Alex Deucher    2015-04-20  142   */
d38ceaf9 Alex Deucher    2015-04-20  143  static void amdgpu_mn_release(struct mmu_notifier *mn,
d38ceaf9 Alex Deucher    2015-04-20  144  			      struct mm_struct *mm)
d38ceaf9 Alex Deucher    2015-04-20  145  {
b593fc01 Christian König 2018-06-13  146  	struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
b55f236b Christian König 2018-06-05  147  
b593fc01 Christian König 2018-06-13  148  	INIT_WORK(&amn->work, amdgpu_mn_destroy);
b593fc01 Christian König 2018-06-13  149  	schedule_work(&amn->work);
d38ceaf9 Alex Deucher    2015-04-20  150  }
d38ceaf9 Alex Deucher    2015-04-20  151  
3fe89771 Christian König 2017-09-12  152  
3fe89771 Christian König 2017-09-12  153  /**
b55f236b Christian König 2018-06-05  154   * amdgpu_mn_lock - take the write side lock for this notifier
b55f236b Christian König 2018-06-05  155   *
b55f236b Christian König 2018-06-05  156   * @mn: our notifier
3fe89771 Christian König 2017-09-12  157   */
3fe89771 Christian König 2017-09-12  158  void amdgpu_mn_lock(struct amdgpu_mn *mn)
3fe89771 Christian König 2017-09-12  159  {
3fe89771 Christian König 2017-09-12  160  	if (mn)
3fe89771 Christian König 2017-09-12  161  		down_write(&mn->lock);
3fe89771 Christian König 2017-09-12  162  }
3fe89771 Christian König 2017-09-12  163  
3fe89771 Christian König 2017-09-12  164  /**
b55f236b Christian König 2018-06-05  165   * amdgpu_mn_unlock - drop the write side lock for this notifier
b55f236b Christian König 2018-06-05  166   *
b55f236b Christian König 2018-06-05  167   * @mn: our notifier
3fe89771 Christian König 2017-09-12  168   */
3fe89771 Christian König 2017-09-12  169  void amdgpu_mn_unlock(struct amdgpu_mn *mn)
3fe89771 Christian König 2017-09-12  170  {
3fe89771 Christian König 2017-09-12  171  	if (mn)
3fe89771 Christian König 2017-09-12  172  		up_write(&mn->lock);
3fe89771 Christian König 2017-09-12  173  }
3fe89771 Christian König 2017-09-12  174  
d38ceaf9 Alex Deucher    2015-04-20  175  /**
b55f236b Christian König 2018-06-05  176   * amdgpu_mn_read_lock - take the read side lock for this notifier
1ed3d256 Christian König 2017-09-05  177   *
b593fc01 Christian König 2018-06-13  178   * @amn: our notifier
1ed3d256 Christian König 2017-09-05  179   */
b593fc01 Christian König 2018-06-13  180  static void amdgpu_mn_read_lock(struct amdgpu_mn *amn)
1ed3d256 Christian König 2017-09-05  181  {
b593fc01 Christian König 2018-06-13  182  	mutex_lock(&amn->read_lock);
b593fc01 Christian König 2018-06-13  183  	if (atomic_inc_return(&amn->recursion) == 1)
b593fc01 Christian König 2018-06-13  184  		down_read_non_owner(&amn->lock);
b593fc01 Christian König 2018-06-13  185  	mutex_unlock(&amn->read_lock);
1ed3d256 Christian König 2017-09-05  186  }
1ed3d256 Christian König 2017-09-05  187  
1ed3d256 Christian König 2017-09-05  188  /**
b55f236b Christian König 2018-06-05  189   * amdgpu_mn_read_unlock - drop the read side lock for this notifier
1ed3d256 Christian König 2017-09-05  190   *
b593fc01 Christian König 2018-06-13  191   * @amn: our notifier
1ed3d256 Christian König 2017-09-05  192   */
b593fc01 Christian König 2018-06-13  193  static void amdgpu_mn_read_unlock(struct amdgpu_mn *amn)
1ed3d256 Christian König 2017-09-05  194  {
b593fc01 Christian König 2018-06-13  195  	if (atomic_dec_return(&amn->recursion) == 0)
b593fc01 Christian König 2018-06-13  196  		up_read_non_owner(&amn->lock);
1ed3d256 Christian König 2017-09-05  197  }
1ed3d256 Christian König 2017-09-05  198  
d38ceaf9 Alex Deucher    2015-04-20  199  /**
ae20f12d Christian König 2016-03-18  200   * amdgpu_mn_invalidate_node - unmap all BOs of a node
d38ceaf9 Alex Deucher    2015-04-20  201   *
ae20f12d Christian König 2016-03-18  202   * @node: the node with the BOs to unmap
b55f236b Christian König 2018-06-05  203   * @start: start of address range affected
b55f236b Christian König 2018-06-05  204   * @end: end of address range affected
d38ceaf9 Alex Deucher    2015-04-20  205   *
b55f236b Christian König 2018-06-05  206   * Block for operations on BOs to finish and mark pages as accessed and
b55f236b Christian König 2018-06-05  207   * potentially dirty.
d38ceaf9 Alex Deucher    2015-04-20  208   */
ae20f12d Christian König 2016-03-18  209  static void amdgpu_mn_invalidate_node(struct amdgpu_mn_node *node,
d38ceaf9 Alex Deucher    2015-04-20  210  				      unsigned long start,
d38ceaf9 Alex Deucher    2015-04-20  211  				      unsigned long end)
d38ceaf9 Alex Deucher    2015-04-20  212  {
d38ceaf9 Alex Deucher    2015-04-20  213  	struct amdgpu_bo *bo;
7ab7e8a4 Jack Xiao       2015-04-27  214  	long r;
d38ceaf9 Alex Deucher    2015-04-20  215  
d38ceaf9 Alex Deucher    2015-04-20  216  	list_for_each_entry(bo, &node->bos, mn_list) {
d38ceaf9 Alex Deucher    2015-04-20  217  
ae20f12d Christian König 2016-03-18  218  		if (!amdgpu_ttm_tt_affect_userptr(bo->tbo.ttm, start, end))
a961ea73 Christian König 2015-05-04  219  			continue;
a961ea73 Christian König 2015-05-04  220  
d38ceaf9 Alex Deucher    2015-04-20  221  		r = reservation_object_wait_timeout_rcu(bo->tbo.resv,
d38ceaf9 Alex Deucher    2015-04-20  222  			true, false, MAX_SCHEDULE_TIMEOUT);
7ab7e8a4 Jack Xiao       2015-04-27  223  		if (r <= 0)
7ab7e8a4 Jack Xiao       2015-04-27  224  			DRM_ERROR("(%ld) failed to wait for user bo\n", r);
d38ceaf9 Alex Deucher    2015-04-20  225  
1b0c0f9d Christian König 2017-09-05  226  		amdgpu_ttm_tt_mark_user_pages(bo->tbo.ttm);
d38ceaf9 Alex Deucher    2015-04-20  227  	}
d38ceaf9 Alex Deucher    2015-04-20  228  }
0d2b42b0 Christian König 2016-03-18  229  
ae20f12d Christian König 2016-03-18  230  /**
e52482de Felix Kuehling  2018-03-23  231   * amdgpu_mn_invalidate_range_start_gfx - callback to notify about mm change
ae20f12d Christian König 2016-03-18  232   *
ae20f12d Christian König 2016-03-18  233   * @mn: our notifier
b55f236b Christian König 2018-06-05  234   * @mm: the mm this callback is about
ae20f12d Christian König 2016-03-18  235   * @start: start of updated range
ae20f12d Christian König 2016-03-18  236   * @end: end of updated range
ae20f12d Christian König 2016-03-18  237   *
b55f236b Christian König 2018-06-05  238   * Block for operations on BOs to finish and mark pages as accessed and
b55f236b Christian König 2018-06-05  239   * potentially dirty.
ae20f12d Christian König 2016-03-18  240   */
e52482de Felix Kuehling  2018-03-23  241  static void amdgpu_mn_invalidate_range_start_gfx(struct mmu_notifier *mn,
ae20f12d Christian König 2016-03-18  242  						 struct mm_struct *mm,
ae20f12d Christian König 2016-03-18  243  						 unsigned long start,
ae20f12d Christian König 2016-03-18  244  						 unsigned long end)
ae20f12d Christian König 2016-03-18  245  {
b593fc01 Christian König 2018-06-13  246  	struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
ae20f12d Christian König 2016-03-18  247  	struct interval_tree_node *it;
ae20f12d Christian König 2016-03-18  248  
ae20f12d Christian König 2016-03-18  249  	/* notification is exclusive, but interval is inclusive */
ae20f12d Christian König 2016-03-18  250  	end -= 1;
ae20f12d Christian König 2016-03-18  251  
b593fc01 Christian König 2018-06-13  252  	amdgpu_mn_read_lock(amn);
ae20f12d Christian König 2016-03-18  253  
b593fc01 Christian König 2018-06-13  254  	it = interval_tree_iter_first(&amn->objects, start, end);
ae20f12d Christian König 2016-03-18  255  	while (it) {
ae20f12d Christian König 2016-03-18  256  		struct amdgpu_mn_node *node;
ae20f12d Christian König 2016-03-18  257  
ae20f12d Christian König 2016-03-18  258  		node = container_of(it, struct amdgpu_mn_node, it);
ae20f12d Christian König 2016-03-18  259  		it = interval_tree_iter_next(it, start, end);
ae20f12d Christian König 2016-03-18  260  
ae20f12d Christian König 2016-03-18  261  		amdgpu_mn_invalidate_node(node, start, end);
ae20f12d Christian König 2016-03-18  262  	}
1ed3d256 Christian König 2017-09-05  263  }
ae20f12d Christian König 2016-03-18  264  
1ed3d256 Christian König 2017-09-05  265  /**
e52482de Felix Kuehling  2018-03-23  266   * amdgpu_mn_invalidate_range_start_hsa - callback to notify about mm change
e52482de Felix Kuehling  2018-03-23  267   *
e52482de Felix Kuehling  2018-03-23  268   * @mn: our notifier
e52482de Felix Kuehling  2018-03-23  269   * @mn: the mm this callback is about
e52482de Felix Kuehling  2018-03-23  270   * @start: start of updated range
e52482de Felix Kuehling  2018-03-23  271   * @end: end of updated range
e52482de Felix Kuehling  2018-03-23  272   *
e52482de Felix Kuehling  2018-03-23  273   * We temporarily evict all BOs between start and end. This
e52482de Felix Kuehling  2018-03-23  274   * necessitates evicting all user-mode queues of the process. The BOs
e52482de Felix Kuehling  2018-03-23  275   * are restorted in amdgpu_mn_invalidate_range_end_hsa.
e52482de Felix Kuehling  2018-03-23  276   */
e52482de Felix Kuehling  2018-03-23  277  static void amdgpu_mn_invalidate_range_start_hsa(struct mmu_notifier *mn,
e52482de Felix Kuehling  2018-03-23  278  						 struct mm_struct *mm,
e52482de Felix Kuehling  2018-03-23  279  						 unsigned long start,
e52482de Felix Kuehling  2018-03-23  280  						 unsigned long end)
e52482de Felix Kuehling  2018-03-23  281  {
b593fc01 Christian König 2018-06-13 @282  	struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
e52482de Felix Kuehling  2018-03-23  283  	struct interval_tree_node *it;
e52482de Felix Kuehling  2018-03-23  284  
e52482de Felix Kuehling  2018-03-23  285  	/* notification is exclusive, but interval is inclusive */
e52482de Felix Kuehling  2018-03-23  286  	end -= 1;
e52482de Felix Kuehling  2018-03-23  287  
b593fc01 Christian König 2018-06-13  288  	amdgpu_mn_read_lock(amn);
e52482de Felix Kuehling  2018-03-23  289  
b593fc01 Christian König 2018-06-13  290  	it = interval_tree_iter_first(&amn->objects, start, end);
e52482de Felix Kuehling  2018-03-23  291  	while (it) {
e52482de Felix Kuehling  2018-03-23  292  		struct amdgpu_mn_node *node;
e52482de Felix Kuehling  2018-03-23  293  		struct amdgpu_bo *bo;
e52482de Felix Kuehling  2018-03-23  294  
e52482de Felix Kuehling  2018-03-23  295  		node = container_of(it, struct amdgpu_mn_node, it);
e52482de Felix Kuehling  2018-03-23  296  		it = interval_tree_iter_next(it, start, end);
e52482de Felix Kuehling  2018-03-23  297  
e52482de Felix Kuehling  2018-03-23  298  		list_for_each_entry(bo, &node->bos, mn_list) {
e52482de Felix Kuehling  2018-03-23  299  			struct kgd_mem *mem = bo->kfd_bo;
e52482de Felix Kuehling  2018-03-23  300  
e52482de Felix Kuehling  2018-03-23  301  			if (amdgpu_ttm_tt_affect_userptr(bo->tbo.ttm,
e52482de Felix Kuehling  2018-03-23  302  							 start, end))
e52482de Felix Kuehling  2018-03-23  303  				amdgpu_amdkfd_evict_userptr(mem, mm);
e52482de Felix Kuehling  2018-03-23  304  		}
e52482de Felix Kuehling  2018-03-23  305  	}
e52482de Felix Kuehling  2018-03-23  306  }
e52482de Felix Kuehling  2018-03-23  307  

:::::: The code at line 90 was first introduced by commit
:::::: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 drm/amdgpu: add core driver (v4)

:::::: TO: Alex Deucher <alexander.deucher@xxxxxxx>
:::::: CC: Alex Deucher <alexander.deucher@xxxxxxx>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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