Hi Sourab, [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on next-20170731] [cannot apply to v4.13-rc3] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Sagar-Arun-Kamble/i915-perf-support-for-command-stream-based-OA-GPU-and-workload-metrics-capture/20170731-184412 base: git://anongit.freedesktop.org/drm-intel for-linux-next 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/linux/init.h:1: warning: no structured comments found include/linux/mod_devicetable.h:687: warning: Excess struct/union/enum/typedef member 'ver_major' description in 'fsl_mc_device_id' include/linux/mod_devicetable.h:687: warning: Excess struct/union/enum/typedef member 'ver_minor' description in 'fsl_mc_device_id' kernel/sched/core.c:2080: warning: No description found for parameter 'rf' kernel/sched/core.c:2080: warning: Excess function parameter 'cookie' description in 'try_to_wake_up_local' include/linux/wait.h:555: warning: No description found for parameter 'wq' include/linux/wait.h:555: warning: Excess function parameter 'wq_head' description in 'wait_event_interruptible_hrtimeout' include/linux/wait.h:759: warning: No description found for parameter 'wq_head' include/linux/wait.h:759: warning: Excess function parameter 'wq' description in 'wait_event_killable' include/linux/kthread.h:26: warning: Excess function parameter '...' description in 'kthread_create' kernel/sys.c:1: warning: no structured comments found include/linux/device.h:968: warning: No description found for parameter 'dma_ops' drivers/dma-buf/seqno-fence.c:1: warning: no structured comments found include/linux/iio/iio.h:603: warning: No description found for parameter 'trig_readonly' include/linux/iio/trigger.h:151: warning: No description found for parameter 'indio_dev' include/linux/iio/trigger.h:151: warning: No description found for parameter 'trig' include/linux/device.h:969: warning: No description found for parameter 'dma_ops' drivers/ata/libata-eh.c:1449: warning: No description found for parameter 'link' drivers/ata/libata-eh.c:1449: warning: Excess function parameter 'ap' description in 'ata_eh_done' drivers/ata/libata-eh.c:1590: warning: No description found for parameter 'qc' drivers/ata/libata-eh.c:1590: warning: Excess function parameter 'dev' description in 'ata_eh_request_sense' drivers/mtd/nand/nand_base.c:2751: warning: Excess function parameter 'cached' description in 'nand_write_page' drivers/mtd/nand/nand_base.c:2751: warning: Excess function parameter 'cached' description in 'nand_write_page' arch/s390/include/asm/cmb.h:1: warning: no structured comments found drivers/scsi/scsi_lib.c:1116: warning: No description found for parameter 'rq' drivers/scsi/constants.c:1: warning: no structured comments found include/linux/usb/gadget.h:230: warning: No description found for parameter 'claimed' include/linux/usb/gadget.h:230: warning: No description found for parameter 'enabled' include/linux/usb/gadget.h:412: warning: No description found for parameter 'quirk_altset_not_supp' include/linux/usb/gadget.h:412: warning: No description found for parameter 'quirk_stall_not_supp' include/linux/usb/gadget.h:412: warning: No description found for parameter 'quirk_zlp_not_supp' fs/inode.c:1666: warning: No description found for parameter 'rcu' include/linux/jbd2.h:443: warning: No description found for parameter 'i_transaction' include/linux/jbd2.h:443: warning: No description found for parameter 'i_next_transaction' include/linux/jbd2.h:443: warning: No description found for parameter 'i_list' include/linux/jbd2.h:443: warning: No description found for parameter 'i_vfs_inode' include/linux/jbd2.h:443: warning: No description found for parameter 'i_flags' include/linux/jbd2.h:497: warning: No description found for parameter 'h_rsv_handle' include/linux/jbd2.h:497: warning: No description found for parameter 'h_reserved' include/linux/jbd2.h:497: warning: No description found for parameter 'h_type' include/linux/jbd2.h:497: warning: No description found for parameter 'h_line_no' include/linux/jbd2.h:497: warning: No description found for parameter 'h_start_jiffies' include/linux/jbd2.h:497: warning: No description found for parameter 'h_requested_credits' include/linux/jbd2.h:497: warning: No description found for parameter 'saved_alloc_context' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_chkpt_bhs' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_devname' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_average_commit_time' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_min_batch_time' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_max_batch_time' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_commit_callback' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_failed_commit' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_chksum_driver' include/linux/jbd2.h:1050: warning: No description found for parameter 'j_csum_seed' fs/jbd2/transaction.c:511: warning: No description found for parameter 'type' fs/jbd2/transaction.c:511: warning: No description found for parameter 'line_no' fs/jbd2/transaction.c:641: warning: No description found for parameter 'gfp_mask' include/drm/drm_drv.h:553: warning: No description found for parameter 'debugfs_init' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_open_object' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_close_object' include/drm/drm_drv.h:553: warning: No description found for parameter 'prime_handle_to_fd' include/drm/drm_drv.h:553: warning: No description found for parameter 'prime_fd_to_handle' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_export' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_import' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_pin' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_unpin' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_res_obj' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_get_sg_table' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_import_sg_table' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_vmap' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_vunmap' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_mmap' include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_vm_ops' include/drm/drm_drv.h:553: warning: No description found for parameter 'major' include/drm/drm_drv.h:553: warning: No description found for parameter 'minor' include/drm/drm_drv.h:553: warning: No description found for parameter 'patchlevel' include/drm/drm_drv.h:553: warning: No description found for parameter 'name' include/drm/drm_drv.h:553: warning: No description found for parameter 'desc' include/drm/drm_drv.h:553: warning: No description found for parameter 'date' include/drm/drm_drv.h:553: warning: No description found for parameter 'driver_features' drivers/gpu/drm/drm_modes.c:1623: warning: No description found for parameter 'display' drivers/gpu/drm/drm_modes.c:1623: warning: Excess function parameter 'connector' description in 'drm_mode_is_420_only' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_drv.h:2000: warning: No description found for parameter 'emit_sample_capture' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_buffer' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_samples' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_samples_lock' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'poll_wq' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'pollin' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'last_ctx_id' >> drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'last_pid' drivers/gpu/drm/i915/i915_drv.h:2000: warning: No description found for parameter 'emit_sample_capture' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_buffer' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_samples' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_samples_lock' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'poll_wq' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'pollin' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'last_ctx_id' >> drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'last_pid' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_drv.h:2000: warning: No description found for parameter 'emit_sample_capture' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_buffer' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_samples' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'cs_samples_lock' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'poll_wq' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'pollin' drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'last_ctx_id' >> drivers/gpu/drm/i915/i915_drv.h:2083: warning: No description found for parameter 'last_pid' drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:1: warning: no structured comments found drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:1: warning: no structured comments found drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:1: warning: no structured comments found drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:1: warning: no structured comments found drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:1: warning: no structured comments found drivers/gpu/drm/i915/i915_perf.c:691: warning: No description found for parameter 'last_ts' drivers/gpu/drm/i915/i915_perf.c:1: warning: no structured comments found drivers/gpu/drm/i915/i915_perf.c:692: warning: No description found for parameter 'last_ts' drivers/gpu/host1x/bus.c:50: warning: Excess function parameter 'driver' description in 'host1x_subdev_add' Documentation/doc-guide/sphinx.rst:121: ERROR: Unknown target name: "sphinx c domain". kernel/sched/fair.c:7584: WARNING: Inline emphasis start-string without end-string. kernel/time/timer.c:1200: ERROR: Unexpected indentation. kernel/time/timer.c:1202: ERROR: Unexpected indentation. kernel/time/timer.c:1203: WARNING: Block quote ends without a blank line; unexpected unindent. include/linux/wait.h:108: WARNING: Block quote ends without a blank line; unexpected unindent. include/linux/wait.h:111: ERROR: Unexpected indentation. include/linux/wait.h:113: WARNING: Block quote ends without a blank line; unexpected unindent. kernel/time/hrtimer.c:991: WARNING: Block quote ends without a blank line; unexpected unindent. kernel/signal.c:323: WARNING: Inline literal start-string without end-string. kernel/rcu/tree.c:3187: ERROR: Unexpected indentation. kernel/rcu/tree.c:3214: ERROR: Unexpected indentation. kernel/rcu/tree.c:3215: WARNING: Bullet list ends without a blank line; unexpected unindent. include/linux/iio/iio.h:219: ERROR: Unexpected indentation. include/linux/iio/iio.h:220: WARNING: Block quote ends without a blank line; unexpected unindent. include/linux/iio/iio.h:226: WARNING: Definition list ends without a blank line; unexpected unindent. drivers/iio/industrialio-core.c:633: ERROR: Unknown target name: "iio_val". drivers/iio/industrialio-core.c:640: ERROR: Unknown target name: "iio_val". drivers/ata/libata-core.c:5906: ERROR: Unknown target name: "hw". drivers/message/fusion/mptbase.c:5051: WARNING: Definition list ends without a blank line; unexpected unindent. drivers/tty/serial/serial_core.c:1897: WARNING: Definition list ends without a blank line; unexpected unindent. drivers/pci/pci.c:3470: ERROR: Unexpected indentation. include/linux/regulator/driver.h:271: ERROR: Unknown target name: "regulator_regmap_x_voltage". include/linux/spi/spi.h:373: ERROR: Unexpected indentation. drivers/w1/w1_io.c:196: WARNING: Definition list ends without a blank line; unexpected unindent. block/bio.c:404: ERROR: Unknown target name: "gfp". include/drm/drm_modeset_helper_vtables.h:1182: WARNING: Bullet list ends without a blank line; unexpected unindent. drivers/gpu/drm/drm_scdc_helper.c:203: ERROR: Unexpected indentation. drivers/gpu/drm/drm_scdc_helper.c:204: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/gpu/todo.rst:111: ERROR: Unknown target name: "drm_fb". sound/soc/soc-core.c:2703: ERROR: Unknown target name: "snd_soc_daifmt". sound/core/jack.c:312: ERROR: Unknown target name: "snd_jack_btn". Documentation/media/v4l-drivers/imx.rst:: WARNING: document isn't included in any toctree Documentation/virtual/kvm/vcpu-requests.rst:: WARNING: document isn't included in any toctree Documentation/dev-tools/kselftest.rst:15: WARNING: Could not lex literal_block as "c". Highlighting skipped. Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected vim +/last_pid +2083 drivers/gpu/drm/i915/i915_drv.h eec688e1 Robert Bragg 2016-11-07 1925 16d98b31 Robert Bragg 2016-12-07 1926 /** 16d98b31 Robert Bragg 2016-12-07 1927 * struct i915_perf_stream_ops - the OPs to support a specific stream type 16d98b31 Robert Bragg 2016-12-07 1928 */ eec688e1 Robert Bragg 2016-11-07 1929 struct i915_perf_stream_ops { 16d98b31 Robert Bragg 2016-12-07 1930 /** 16d98b31 Robert Bragg 2016-12-07 1931 * @enable: Enables the collection of HW samples, either in response to 16d98b31 Robert Bragg 2016-12-07 1932 * `I915_PERF_IOCTL_ENABLE` or implicitly called when stream is opened 16d98b31 Robert Bragg 2016-12-07 1933 * without `I915_PERF_FLAG_DISABLED`. eec688e1 Robert Bragg 2016-11-07 1934 */ eec688e1 Robert Bragg 2016-11-07 1935 void (*enable)(struct i915_perf_stream *stream); eec688e1 Robert Bragg 2016-11-07 1936 16d98b31 Robert Bragg 2016-12-07 1937 /** 16d98b31 Robert Bragg 2016-12-07 1938 * @disable: Disables the collection of HW samples, either in response 16d98b31 Robert Bragg 2016-12-07 1939 * to `I915_PERF_IOCTL_DISABLE` or implicitly called before destroying 16d98b31 Robert Bragg 2016-12-07 1940 * the stream. eec688e1 Robert Bragg 2016-11-07 1941 */ eec688e1 Robert Bragg 2016-11-07 1942 void (*disable)(struct i915_perf_stream *stream); eec688e1 Robert Bragg 2016-11-07 1943 16d98b31 Robert Bragg 2016-12-07 1944 /** 16d98b31 Robert Bragg 2016-12-07 1945 * @poll_wait: Call poll_wait, passing a wait queue that will be woken eec688e1 Robert Bragg 2016-11-07 1946 * once there is something ready to read() for the stream eec688e1 Robert Bragg 2016-11-07 1947 */ eec688e1 Robert Bragg 2016-11-07 1948 void (*poll_wait)(struct i915_perf_stream *stream, eec688e1 Robert Bragg 2016-11-07 1949 struct file *file, eec688e1 Robert Bragg 2016-11-07 1950 poll_table *wait); eec688e1 Robert Bragg 2016-11-07 1951 16d98b31 Robert Bragg 2016-12-07 1952 /** 16d98b31 Robert Bragg 2016-12-07 1953 * @wait_unlocked: For handling a blocking read, wait until there is 16d98b31 Robert Bragg 2016-12-07 1954 * something to ready to read() for the stream. E.g. wait on the same d7965152 Robert Bragg 2016-11-07 1955 * wait queue that would be passed to poll_wait(). eec688e1 Robert Bragg 2016-11-07 1956 */ eec688e1 Robert Bragg 2016-11-07 1957 int (*wait_unlocked)(struct i915_perf_stream *stream); eec688e1 Robert Bragg 2016-11-07 1958 16d98b31 Robert Bragg 2016-12-07 1959 /** 16d98b31 Robert Bragg 2016-12-07 1960 * @read: Copy buffered metrics as records to userspace 16d98b31 Robert Bragg 2016-12-07 1961 * **buf**: the userspace, destination buffer 16d98b31 Robert Bragg 2016-12-07 1962 * **count**: the number of bytes to copy, requested by userspace 16d98b31 Robert Bragg 2016-12-07 1963 * **offset**: zero at the start of the read, updated as the read 16d98b31 Robert Bragg 2016-12-07 1964 * proceeds, it represents how many bytes have been copied so far and 16d98b31 Robert Bragg 2016-12-07 1965 * the buffer offset for copying the next record. eec688e1 Robert Bragg 2016-11-07 1966 * 16d98b31 Robert Bragg 2016-12-07 1967 * Copy as many buffered i915 perf samples and records for this stream 16d98b31 Robert Bragg 2016-12-07 1968 * to userspace as will fit in the given buffer. eec688e1 Robert Bragg 2016-11-07 1969 * 16d98b31 Robert Bragg 2016-12-07 1970 * Only write complete records; returning -%ENOSPC if there isn't room 16d98b31 Robert Bragg 2016-12-07 1971 * for a complete record. eec688e1 Robert Bragg 2016-11-07 1972 * 16d98b31 Robert Bragg 2016-12-07 1973 * Return any error condition that results in a short read such as 16d98b31 Robert Bragg 2016-12-07 1974 * -%ENOSPC or -%EFAULT, even though these may be squashed before 16d98b31 Robert Bragg 2016-12-07 1975 * returning to userspace. eec688e1 Robert Bragg 2016-11-07 1976 */ eec688e1 Robert Bragg 2016-11-07 1977 int (*read)(struct i915_perf_stream *stream, eec688e1 Robert Bragg 2016-11-07 1978 char __user *buf, eec688e1 Robert Bragg 2016-11-07 1979 size_t count, eec688e1 Robert Bragg 2016-11-07 1980 size_t *offset); eec688e1 Robert Bragg 2016-11-07 1981 16d98b31 Robert Bragg 2016-12-07 1982 /** 16d98b31 Robert Bragg 2016-12-07 1983 * @destroy: Cleanup any stream specific resources. eec688e1 Robert Bragg 2016-11-07 1984 * eec688e1 Robert Bragg 2016-11-07 1985 * The stream will always be disabled before this is called. eec688e1 Robert Bragg 2016-11-07 1986 */ eec688e1 Robert Bragg 2016-11-07 1987 void (*destroy)(struct i915_perf_stream *stream); b0aca6b4 Sourab Gupta 2017-07-31 1988 b0aca6b4 Sourab Gupta 2017-07-31 1989 /* b0aca6b4 Sourab Gupta 2017-07-31 1990 * @emit_sample_capture: Emit the commands in the command streamer b0aca6b4 Sourab Gupta 2017-07-31 1991 * for a particular gpu engine. b0aca6b4 Sourab Gupta 2017-07-31 1992 * b0aca6b4 Sourab Gupta 2017-07-31 1993 * The commands are inserted to capture the perf sample data at b0aca6b4 Sourab Gupta 2017-07-31 1994 * specific points during workload execution, such as before and after b0aca6b4 Sourab Gupta 2017-07-31 1995 * the batch buffer. b0aca6b4 Sourab Gupta 2017-07-31 1996 */ b0aca6b4 Sourab Gupta 2017-07-31 1997 void (*emit_sample_capture)(struct i915_perf_stream *stream, b0aca6b4 Sourab Gupta 2017-07-31 1998 struct drm_i915_gem_request *request, b0aca6b4 Sourab Gupta 2017-07-31 1999 bool preallocate); b0aca6b4 Sourab Gupta 2017-07-31 @2000 }; b0aca6b4 Sourab Gupta 2017-07-31 2001 b0aca6b4 Sourab Gupta 2017-07-31 2002 enum i915_perf_stream_state { b0aca6b4 Sourab Gupta 2017-07-31 2003 I915_PERF_STREAM_DISABLED, b0aca6b4 Sourab Gupta 2017-07-31 2004 I915_PERF_STREAM_ENABLE_IN_PROGRESS, b0aca6b4 Sourab Gupta 2017-07-31 2005 I915_PERF_STREAM_ENABLED, eec688e1 Robert Bragg 2016-11-07 2006 }; eec688e1 Robert Bragg 2016-11-07 2007 16d98b31 Robert Bragg 2016-12-07 2008 /** 16d98b31 Robert Bragg 2016-12-07 2009 * struct i915_perf_stream - state for a single open stream FD 16d98b31 Robert Bragg 2016-12-07 2010 */ eec688e1 Robert Bragg 2016-11-07 2011 struct i915_perf_stream { 16d98b31 Robert Bragg 2016-12-07 2012 /** 16d98b31 Robert Bragg 2016-12-07 2013 * @dev_priv: i915 drm device 16d98b31 Robert Bragg 2016-12-07 2014 */ eec688e1 Robert Bragg 2016-11-07 2015 struct drm_i915_private *dev_priv; eec688e1 Robert Bragg 2016-11-07 2016 16d98b31 Robert Bragg 2016-12-07 2017 /** b0aca6b4 Sourab Gupta 2017-07-31 2018 * @engine: Engine to which this stream corresponds. 16d98b31 Robert Bragg 2016-12-07 2019 */ b0aca6b4 Sourab Gupta 2017-07-31 2020 struct intel_engine_cs *engine; eec688e1 Robert Bragg 2016-11-07 2021 16d98b31 Robert Bragg 2016-12-07 2022 /** 16d98b31 Robert Bragg 2016-12-07 2023 * @sample_flags: Flags representing the `DRM_I915_PERF_PROP_SAMPLE_*` 16d98b31 Robert Bragg 2016-12-07 2024 * properties given when opening a stream, representing the contents 16d98b31 Robert Bragg 2016-12-07 2025 * of a single sample as read() by userspace. 16d98b31 Robert Bragg 2016-12-07 2026 */ eec688e1 Robert Bragg 2016-11-07 2027 u32 sample_flags; 16d98b31 Robert Bragg 2016-12-07 2028 16d98b31 Robert Bragg 2016-12-07 2029 /** 16d98b31 Robert Bragg 2016-12-07 2030 * @sample_size: Considering the configured contents of a sample 16d98b31 Robert Bragg 2016-12-07 2031 * combined with the required header size, this is the total size 16d98b31 Robert Bragg 2016-12-07 2032 * of a single sample record. 16d98b31 Robert Bragg 2016-12-07 2033 */ d7965152 Robert Bragg 2016-11-07 2034 int sample_size; eec688e1 Robert Bragg 2016-11-07 2035 16d98b31 Robert Bragg 2016-12-07 2036 /** 16d98b31 Robert Bragg 2016-12-07 2037 * @ctx: %NULL if measuring system-wide across all contexts or a 16d98b31 Robert Bragg 2016-12-07 2038 * specific context that is being monitored. 16d98b31 Robert Bragg 2016-12-07 2039 */ eec688e1 Robert Bragg 2016-11-07 2040 struct i915_gem_context *ctx; 16d98b31 Robert Bragg 2016-12-07 2041 16d98b31 Robert Bragg 2016-12-07 2042 /** b0aca6b4 Sourab Gupta 2017-07-31 2043 * @state: Current stream state, which can be either disabled, enabled, b0aca6b4 Sourab Gupta 2017-07-31 2044 * or enable_in_progress, while considering whether the stream was b0aca6b4 Sourab Gupta 2017-07-31 2045 * opened in a disabled state and based on `I915_PERF_IOCTL_ENABLE` and b0aca6b4 Sourab Gupta 2017-07-31 2046 * `I915_PERF_IOCTL_DISABLE` calls. 16d98b31 Robert Bragg 2016-12-07 2047 */ b0aca6b4 Sourab Gupta 2017-07-31 2048 enum i915_perf_stream_state state; b0aca6b4 Sourab Gupta 2017-07-31 2049 b0aca6b4 Sourab Gupta 2017-07-31 2050 /** b0aca6b4 Sourab Gupta 2017-07-31 2051 * @cs_mode: Whether command stream based perf sample collection is b0aca6b4 Sourab Gupta 2017-07-31 2052 * enabled for this stream b0aca6b4 Sourab Gupta 2017-07-31 2053 */ b0aca6b4 Sourab Gupta 2017-07-31 2054 bool cs_mode; b0aca6b4 Sourab Gupta 2017-07-31 2055 b0aca6b4 Sourab Gupta 2017-07-31 2056 /** b0aca6b4 Sourab Gupta 2017-07-31 2057 * @using_oa: Whether OA unit is in use for this particular stream b0aca6b4 Sourab Gupta 2017-07-31 2058 */ b0aca6b4 Sourab Gupta 2017-07-31 2059 bool using_oa; eec688e1 Robert Bragg 2016-11-07 2060 16d98b31 Robert Bragg 2016-12-07 2061 /** 16d98b31 Robert Bragg 2016-12-07 2062 * @ops: The callbacks providing the implementation of this specific 16d98b31 Robert Bragg 2016-12-07 2063 * type of configured stream. 16d98b31 Robert Bragg 2016-12-07 2064 */ d7965152 Robert Bragg 2016-11-07 2065 const struct i915_perf_stream_ops *ops; b0aca6b4 Sourab Gupta 2017-07-31 2066 b0aca6b4 Sourab Gupta 2017-07-31 2067 /* Command stream based perf data buffer */ b0aca6b4 Sourab Gupta 2017-07-31 2068 struct { b0aca6b4 Sourab Gupta 2017-07-31 2069 struct i915_vma *vma; b0aca6b4 Sourab Gupta 2017-07-31 2070 u8 *vaddr; 71fd8fc0 Sourab Gupta 2017-07-31 2071 #define I915_PERF_CMD_STREAM_BUF_STATUS_OVERFLOW (1<<0) 71fd8fc0 Sourab Gupta 2017-07-31 2072 u32 status; b0aca6b4 Sourab Gupta 2017-07-31 2073 } cs_buffer; b0aca6b4 Sourab Gupta 2017-07-31 2074 b0aca6b4 Sourab Gupta 2017-07-31 2075 struct list_head cs_samples; b0aca6b4 Sourab Gupta 2017-07-31 2076 spinlock_t cs_samples_lock; b0aca6b4 Sourab Gupta 2017-07-31 2077 b0aca6b4 Sourab Gupta 2017-07-31 2078 wait_queue_head_t poll_wq; b0aca6b4 Sourab Gupta 2017-07-31 2079 bool pollin; 7405a923 Sourab Gupta 2017-07-31 2080 7405a923 Sourab Gupta 2017-07-31 2081 u32 last_ctx_id; 928b6006 Sourab Gupta 2017-07-31 2082 u32 last_pid; d7965152 Robert Bragg 2016-11-07 @2083 }; d7965152 Robert Bragg 2016-11-07 2084 :::::: The code at line 2083 was first introduced by commit :::::: d79651522e89c4ffa8992b48dfe449f0c583f809 drm/i915: Enable i915 perf stream for Haswell OA unit :::::: TO: Robert Bragg <robert@xxxxxxxxxxxxx> :::::: CC: Daniel Vetter <daniel.vetter@xxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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