[radeon-alex:amd-staging-dkms-4.18 805/1379] htmldocs: drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1542: warning: Function parameter or member 'vram_base_offset' not described in 'amdgpu_vm_bo_split_mapping'

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tree:   git://people.freedesktop.org/~agd5f/linux.git amd-staging-dkms-4.18
head:   937a0a9df97d4c1c7cecf6faa2f501d175bc3c2a
commit: 67f5976ee4842d01af79144a8355a040ed36b6d2 [805/1379] drm/amdkfd: Copy in non-KFD changes
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)
   mm/mempool.c:228: warning: Function parameter or member 'pool' not described in 'mempool_init'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
   include/net/cfg80211.h:4279: 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:588: warning: Function parameter or member 'rx_stats_avg' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'rx_stats_avg.chain_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.filtered' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.retry_count' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.lost_packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_tdls_pkt_time' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_retries' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.msdu_failed' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.last_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.ack_signal_filled' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'status_stats.avg_ack_signal' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.packets' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.bytes' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.last_rate' not described in 'sta_info'
   net/mac80211/sta_info.h:588: warning: Function parameter or member 'tx_stats.msdu' not described in 'sta_info'
   kernel/sched/fair.c:3760: warning: Function parameter or member 'flags' not described in 'attach_entity_load_avg'
   include/linux/device.h:93: warning: bad line: this bus.
   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/hw-consumer.h:1: warning: no structured comments found
   include/linux/device.h:94: warning: bad line: this bus.
   include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry'
   include/linux/regulator/driver.h:227: warning: Function parameter or member 'resume_early' not described in 'regulator_ops'
   drivers/regulator/core.c:4465: 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/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config'
   drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c:210: warning: Function parameter or member 'target_dev' not described in 'amdgpu_gem_map_attach'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3063: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
>> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1542: warning: Function parameter or member 'vram_base_offset' not described in 'amdgpu_vm_bo_split_mapping'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3064: warning: Function parameter or member 'adev' not described in 'amdgpu_vm_get_task_info'
   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3064: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info'
   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/linux/skbuff.h:852: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'skb_mstamp' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'head_frag' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'encapsulation' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'csum_valid' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'csum_level' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'offload_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'offload_mr_fwd_mark' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff'
   include/linux/skbuff.h:852: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff'
   include/linux/skbuff.h:852: 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:493: warning: Function parameter or member 'sk_backlog.rmem_alloc' not described in 'sock'
   include/net/sock.h:493: warning: Function parameter or member 'sk_backlog.len' not described in 'sock'
   include/net/sock.h:493: warning: Function parameter or member 'sk_backlog.head' not described in 'sock'
   include/net/sock.h:493: warning: Function parameter or member 'sk_backlog.tail' not described in 'sock'
   include/net/sock.h:493: warning: Function parameter or member 'sk_wq_raw' not described in 'sock'
   include/net/sock.h:493: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock'
   include/net/sock.h:493: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock'
   include/net/sock.h:493: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'adj_list.upper' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'adj_list.lower' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'gso_partial_features' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'switchdev_ops' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'name_assign_type' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'mpls_ptr' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'xdp_prog' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member 'nf_hooks_ingress' not described in 'net_device'
   include/linux/netdevice.h:1997: warning: Function parameter or member '____cacheline_aligned_in_smp' not described in 'net_device'
   include/linux/netdevice.h:1997: 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'
   sound/soc/soc-core.c:2787: warning: Excess function parameter 'legacy_dai_naming' description in 'snd_soc_register_dais'
   include/linux/rcupdate.h:571: ERROR: Unexpected indentation.
   include/linux/rcupdate.h:575: ERROR: Unexpected indentation.
   include/linux/rcupdate.h:579: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/rcupdate.h:581: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/rcupdate.h:581: WARNING: Inline literal start-string without end-string.
   lib/reed_solomon/reed_solomon.c:287: ERROR: Unknown target name: "gfp".
   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.
   drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
   drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
   drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
   drivers/video/fbdev/core/modedb.c:647: WARNING: Inline strong start-string without end-string.
   drivers/ata/libata-core.c:5946: ERROR: Unknown target name: "hw".
   drivers/message/fusion/mptbase.c:5054: WARNING: Definition list ends without a blank line; unexpected unindent.
   drivers/tty/serial/serial_core.c:1892: WARNING: Definition list ends without a blank line; unexpected unindent.
   include/linux/mtd/rawnand.h:1446: WARNING: Inline strong start-string without end-string.
   include/linux/mtd/rawnand.h:1448: WARNING: Inline strong start-string without end-string.
   include/linux/regulator/driver.h:279: ERROR: Unknown target name: "regulator_regmap_x_voltage".
   Documentation/driver-api/soundwire/locking.rst:50: ERROR: Inconsistent literal block quoting.
   Documentation/driver-api/soundwire/locking.rst:51: WARNING: Line block ends without a blank line.
   Documentation/driver-api/soundwire/locking.rst:55: WARNING: Inline substitution_reference start-string without end-string.
   Documentation/driver-api/soundwire/locking.rst:56: WARNING: Line block ends without a blank line.
   Documentation/driver-api/soundwire/stream.rst:177: WARNING: Explicit markup ends without a blank line; unexpected unindent.
   Documentation/driver-api/soundwire/stream.rst:203: WARNING: Explicit markup ends without a blank line; unexpected unindent.
   Documentation/driver-api/soundwire/stream.rst:248: WARNING: Explicit markup ends without a blank line; unexpected unindent.
   Documentation/driver-api/soundwire/stream.rst:277: WARNING: Explicit markup ends without a blank line; unexpected unindent.
   Documentation/driver-api/soundwire/stream.rst:304: WARNING: Explicit markup ends without a blank line; unexpected unindent.

vim +1542 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

d38ceaf9 Alex Deucher      2015-04-20  1513  
d38ceaf9 Alex Deucher      2015-04-20  1514  /**
a14faa65 Christian König   2016-01-25  1515   * amdgpu_vm_bo_split_mapping - split a mapping into smaller chunks
a14faa65 Christian König   2016-01-25  1516   *
a14faa65 Christian König   2016-01-25  1517   * @adev: amdgpu_device pointer
3cabaa54 Christian König   2016-06-06  1518   * @exclusive: fence we need to sync to
8358dcee Christian König   2016-03-30  1519   * @pages_addr: DMA addresses to use for mapping
a14faa65 Christian König   2016-01-25  1520   * @vm: requested vm
a14faa65 Christian König   2016-01-25  1521   * @mapping: mapped range and flags to use for the update
8358dcee Christian König   2016-03-30  1522   * @flags: HW flags for the mapping
63e0ba40 Christian König   2016-08-16  1523   * @nodes: array of drm_mm_nodes with the MC addresses
a14faa65 Christian König   2016-01-25  1524   * @fence: optional resulting fence
a14faa65 Christian König   2016-01-25  1525   *
a14faa65 Christian König   2016-01-25  1526   * Split the mapping into smaller chunks so that each update fits
a14faa65 Christian König   2016-01-25  1527   * into a SDMA IB.
8df7b3b4 Andrey Grodzovsky 2018-06-11  1528   *
8df7b3b4 Andrey Grodzovsky 2018-06-11  1529   * Returns:
8df7b3b4 Andrey Grodzovsky 2018-06-11  1530   * 0 for success, -EINVAL for failure.
a14faa65 Christian König   2016-01-25  1531   */
a14faa65 Christian König   2016-01-25  1532  static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
f54d1867 Chris Wilson      2016-10-25  1533  				      struct dma_fence *exclusive,
8358dcee Christian König   2016-03-30  1534  				      dma_addr_t *pages_addr,
a14faa65 Christian König   2016-01-25  1535  				      struct amdgpu_vm *vm,
a14faa65 Christian König   2016-01-25  1536  				      struct amdgpu_bo_va_mapping *mapping,
67f5976e Kent Russell      2017-11-14  1537  				      uint64_t vram_base_offset,
6b777607 Chunming Zhou     2016-09-21  1538  				      uint64_t flags,
63e0ba40 Christian König   2016-08-16  1539  				      struct drm_mm_node *nodes,
f54d1867 Chris Wilson      2016-10-25  1540  				      struct dma_fence **fence)
a14faa65 Christian König   2016-01-25  1541  {
9fc8fc70 Christian König   2017-09-18 @1542  	unsigned min_linear_pages = 1 << adev->vm_manager.fragment_size;
570144c6 Christian König   2017-08-30  1543  	uint64_t pfn, start = mapping->start;
a14faa65 Christian König   2016-01-25  1544  	int r;
a14faa65 Christian König   2016-01-25  1545  
a14faa65 Christian König   2016-01-25  1546  	/* normally,bo_va->flags only contians READABLE and WIRTEABLE bit go here
a14faa65 Christian König   2016-01-25  1547  	 * but in case of something, we filter the flags in first place
a14faa65 Christian König   2016-01-25  1548  	 */
a14faa65 Christian König   2016-01-25  1549  	if (!(mapping->flags & AMDGPU_PTE_READABLE))
a14faa65 Christian König   2016-01-25  1550  		flags &= ~AMDGPU_PTE_READABLE;
a14faa65 Christian König   2016-01-25  1551  	if (!(mapping->flags & AMDGPU_PTE_WRITEABLE))
a14faa65 Christian König   2016-01-25  1552  		flags &= ~AMDGPU_PTE_WRITEABLE;
a14faa65 Christian König   2016-01-25  1553  
15b31c59 Alex Xie          2017-03-03  1554  	flags &= ~AMDGPU_PTE_EXECUTABLE;
15b31c59 Alex Xie          2017-03-03  1555  	flags |= mapping->flags & AMDGPU_PTE_EXECUTABLE;
15b31c59 Alex Xie          2017-03-03  1556  
b0fd18b0 Alex Xie          2017-03-03  1557  	flags &= ~AMDGPU_PTE_MTYPE_MASK;
b0fd18b0 Alex Xie          2017-03-03  1558  	flags |= (mapping->flags & AMDGPU_PTE_MTYPE_MASK);
b0fd18b0 Alex Xie          2017-03-03  1559  
d0766e98 Zhang, Jerry      2017-04-19  1560  	if ((mapping->flags & AMDGPU_PTE_PRT) &&
d0766e98 Zhang, Jerry      2017-04-19  1561  	    (adev->asic_type >= CHIP_VEGA10)) {
d0766e98 Zhang, Jerry      2017-04-19  1562  		flags |= AMDGPU_PTE_PRT;
d0766e98 Zhang, Jerry      2017-04-19  1563  		flags &= ~AMDGPU_PTE_VALID;
d0766e98 Zhang, Jerry      2017-04-19  1564  	}
d0766e98 Zhang, Jerry      2017-04-19  1565  
a14faa65 Christian König   2016-01-25  1566  	trace_amdgpu_vm_bo_update(mapping);
a14faa65 Christian König   2016-01-25  1567  
63e0ba40 Christian König   2016-08-16  1568  	pfn = mapping->offset >> PAGE_SHIFT;
63e0ba40 Christian König   2016-08-16  1569  	if (nodes) {
63e0ba40 Christian König   2016-08-16  1570  		while (pfn >= nodes->size) {
63e0ba40 Christian König   2016-08-16  1571  			pfn -= nodes->size;
63e0ba40 Christian König   2016-08-16  1572  			++nodes;
63e0ba40 Christian König   2016-08-16  1573  		}
63e0ba40 Christian König   2016-08-16  1574  	}
63e0ba40 Christian König   2016-08-16  1575  
63e0ba40 Christian König   2016-08-16  1576  	do {
9fc8fc70 Christian König   2017-09-18  1577  		dma_addr_t *dma_addr = NULL;
63e0ba40 Christian König   2016-08-16  1578  		uint64_t max_entries;
63e0ba40 Christian König   2016-08-16  1579  		uint64_t addr, last;
63e0ba40 Christian König   2016-08-16  1580  
63e0ba40 Christian König   2016-08-16  1581  		if (nodes) {
63e0ba40 Christian König   2016-08-16  1582  			addr = nodes->start << PAGE_SHIFT;
63e0ba40 Christian König   2016-08-16  1583  			max_entries = (nodes->size - pfn) *
eb2ac2fc Michel Dänzer     2018-06-22  1584  				AMDGPU_GPU_PAGES_IN_CPU_PAGE;
63e0ba40 Christian König   2016-08-16  1585  		} else {
63e0ba40 Christian König   2016-08-16  1586  			addr = 0;
63e0ba40 Christian König   2016-08-16  1587  			max_entries = S64_MAX;
63e0ba40 Christian König   2016-08-16  1588  		}
63e0ba40 Christian König   2016-08-16  1589  
8358dcee Christian König   2016-03-30  1590  		if (pages_addr) {
9fc8fc70 Christian König   2017-09-18  1591  			uint64_t count;
9fc8fc70 Christian König   2017-09-18  1592  
63e0ba40 Christian König   2016-08-16  1593  			max_entries = min(max_entries, 16ull * 1024ull);
38e624a1 Michel Dänzer     2018-06-21  1594  			for (count = 1;
eb2ac2fc Michel Dänzer     2018-06-22  1595  			     count < max_entries / AMDGPU_GPU_PAGES_IN_CPU_PAGE;
38e624a1 Michel Dänzer     2018-06-21  1596  			     ++count) {
9fc8fc70 Christian König   2017-09-18  1597  				uint64_t idx = pfn + count;
9fc8fc70 Christian König   2017-09-18  1598  
9fc8fc70 Christian König   2017-09-18  1599  				if (pages_addr[idx] !=
9fc8fc70 Christian König   2017-09-18  1600  				    (pages_addr[idx - 1] + PAGE_SIZE))
9fc8fc70 Christian König   2017-09-18  1601  					break;
9fc8fc70 Christian König   2017-09-18  1602  			}
9fc8fc70 Christian König   2017-09-18  1603  
9fc8fc70 Christian König   2017-09-18  1604  			if (count < min_linear_pages) {
9fc8fc70 Christian König   2017-09-18  1605  				addr = pfn << PAGE_SHIFT;
9fc8fc70 Christian König   2017-09-18  1606  				dma_addr = pages_addr;
9fc8fc70 Christian König   2017-09-18  1607  			} else {
9fc8fc70 Christian König   2017-09-18  1608  				addr = pages_addr[pfn];
eb2ac2fc Michel Dänzer     2018-06-22  1609  				max_entries = count * AMDGPU_GPU_PAGES_IN_CPU_PAGE;
9fc8fc70 Christian König   2017-09-18  1610  			}
9fc8fc70 Christian König   2017-09-18  1611  
63e0ba40 Christian König   2016-08-16  1612  		} else if (flags & AMDGPU_PTE_VALID) {
67f5976e Kent Russell      2017-11-14  1613  			addr += vram_base_offset;
63e0ba40 Christian König   2016-08-16  1614  			addr += pfn << PAGE_SHIFT;
9fc8fc70 Christian König   2017-09-18  1615  		}
a14faa65 Christian König   2016-01-25  1616  
a9f87f64 Christian König   2017-03-30  1617  		last = min((uint64_t)mapping->last, start + max_entries - 1);
9fc8fc70 Christian König   2017-09-18  1618  		r = amdgpu_vm_bo_update_mapping(adev, exclusive, dma_addr, vm,
a14faa65 Christian König   2016-01-25  1619  						start, last, flags, addr,
a14faa65 Christian König   2016-01-25  1620  						fence);
a14faa65 Christian König   2016-01-25  1621  		if (r)
a14faa65 Christian König   2016-01-25  1622  			return r;
a14faa65 Christian König   2016-01-25  1623  
eb2ac2fc Michel Dänzer     2018-06-22  1624  		pfn += (last - start + 1) / AMDGPU_GPU_PAGES_IN_CPU_PAGE;
63e0ba40 Christian König   2016-08-16  1625  		if (nodes && nodes->size == pfn) {
63e0ba40 Christian König   2016-08-16  1626  			pfn = 0;
63e0ba40 Christian König   2016-08-16  1627  			++nodes;
a14faa65 Christian König   2016-01-25  1628  		}
63e0ba40 Christian König   2016-08-16  1629  		start = last + 1;
63e0ba40 Christian König   2016-08-16  1630  
a9f87f64 Christian König   2017-03-30  1631  	} while (unlikely(start != mapping->last + 1));
a14faa65 Christian König   2016-01-25  1632  
a14faa65 Christian König   2016-01-25  1633  	return 0;
a14faa65 Christian König   2016-01-25  1634  }
a14faa65 Christian König   2016-01-25  1635  

:::::: The code at line 1542 was first introduced by commit
:::::: 9fc8fc709b356c85034cbcb3b84c9d8b77865f52 drm/amdgpu: add VM support for huge pages v2

:::::: TO: Christian König <christian.koenig@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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