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path: root/drivers/gpu/drm/i915/intel_uc.h
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2018-03-23drm/i915/uc: Fetch uC firmware in init_earlyMichal Wajdeczko
We were fetching uC firmwares in separate uc_init_fw step, while there is no reason why we can't fetch them during init_early. This will also simplify upcoming patches, as size of the firmware may be used for register initialization. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michal Winiarski <michal.winiarski@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180323123451.59244-2-michal.wajdeczko@intel.com
2018-03-19drm/i915/guc: Split relay control and GuC log levelMichał Winiarski
Those two concepts are really separate. Since GuC is writing data into its own buffer and we even provide a way for userspace to read directly from it using i915_guc_log_dump debugfs, there's no real reason to tie log level with relay creation. Let's create a separate debugfs, giving userspace a way to create a relay on demand, when it wants to read a continuous log rather than a snapshot. v2: Don't touch guc_log_level on relay creation error, adjust locking after rebase, s/dev_priv/i915, pass guc to file->private_data (Sagar) Use struct_mutex rather than runtime.lock for set_log_level v3: Tidy ordering of definitions (Sagar) Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180319095348.9716-5-michal.winiarski@intel.com
2018-03-12drm/i915/uc: Sanitize uC together with GEMMichal Wajdeczko
Instead of dancing around uC on reset/suspend/resume scenarios, explicitly sanitize uC when we sanitize GEM to force uC reload and start from known beginning. v2: don't forget about reset path (Daniele) sanitize uc before gem initiated full reset (Daniele) v3: drop redundant disable_communication in init_hw (Daniele) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180312130308.22952-3-michal.wajdeczko@intel.com
2018-03-12drm/i915/uc: Sanitize uC options earlyMichal Wajdeczko
We are sanitizing uC related modparams together with other driver modparams in intel_sanitize_options called from i915_driver_init_hw, but this is too late for us as we will want to use USES_GUC/USES_HUC macros at earlier stage. Since our sanitizing does not require any MMIO access, we can do it in intel_uc_init_early right after we resolve firmware names. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180312130308.22952-2-michal.wajdeczko@intel.com
2018-03-09drm/i915/guc: Create common entry points for log register/unregisterMichał Winiarski
We have many functions responsible for allocating different parts of GuC log runtime called from multiple places. Let's stick with keeping everything in guc_log_register instead. v2: Use more generic intel_uc_register name, keep using "misc" suffix (Michał) s/dev_priv/i915 (Sagar) Make guc_log_relay_* static (sparse) Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180308154707.21716-2-michal.winiarski@intel.com
2018-03-02drm/i915/uc: Introduce intel_uc_suspend|resumeMichal Wajdeczko
We want to use higher level 'uc' functions as the main entry points to the GuC/HuC code to hide some details and keep code layered. While here, move call to disable_guc_interrupts after sending suspend action to the GuC to allow it work also with CTB as comm mechanism. v2: update commit msg (Sagar) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180302111550.21328-1-michal.wajdeczko@intel.com
2018-01-24drm/i915/guc: Fix lockdep due to log relay channel handling under struct_mutexSagar Arun Kamble
This patch fixes lockdep issue due to circular locking dependency of struct_mutex, i_mutex_key, mmap_sem, relay_channels_mutex. For GuC log relay channel we create debugfs file that requires i_mutex_key lock and we are doing that under struct_mutex. So we introduced newer dependency as: &dev->struct_mutex --> &sb->s_type->i_mutex_key#3 --> &mm->mmap_sem However, there is dependency from mmap_sem to struct_mutex. Hence we separate the relay create/destroy operation from under struct_mutex. Also added runtime check of relay buffer status. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> ====================================================== WARNING: possible circular locking dependency detected 4.15.0-rc6-CI-Patchwork_7614+ #1 Not tainted ------------------------------------------------------ debugfs_test/1388 is trying to acquire lock: (&dev->struct_mutex){+.+.}, at: [<00000000d5e1d915>] i915_mutex_lock_interruptible+0x47/0x130 [i915] but task is already holding lock: (&mm->mmap_sem){++++}, at: [<0000000029a9c131>] __do_page_fault+0x106/0x560 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&mm->mmap_sem){++++}: _copy_to_user+0x1e/0x70 filldir+0x8c/0xf0 dcache_readdir+0xeb/0x160 iterate_dir+0xdc/0x140 SyS_getdents+0xa0/0x130 entry_SYSCALL_64_fastpath+0x1c/0x89 -> #2 (&sb->s_type->i_mutex_key#3){++++}: start_creating+0x59/0x110 __debugfs_create_file+0x2e/0xe0 relay_create_buf_file+0x62/0x80 relay_late_setup_files+0x84/0x250 guc_log_late_setup+0x4f/0x110 [i915] i915_guc_log_register+0x32/0x40 [i915] i915_driver_load+0x7b6/0x1720 [i915] i915_pci_probe+0x2e/0x90 [i915] pci_device_probe+0x9c/0x120 driver_probe_device+0x2a3/0x480 __driver_attach+0xd9/0xe0 bus_for_each_dev+0x57/0x90 bus_add_driver+0x168/0x260 driver_register+0x52/0xc0 do_one_initcall+0x39/0x150 do_init_module+0x56/0x1ef load_module+0x231c/0x2d70 SyS_finit_module+0xa5/0xe0 entry_SYSCALL_64_fastpath+0x1c/0x89 -> #1 (relay_channels_mutex){+.+.}: relay_open+0x12c/0x2b0 intel_guc_log_runtime_create+0xab/0x230 [i915] intel_guc_init+0x81/0x120 [i915] intel_uc_init+0x29/0xa0 [i915] i915_gem_init+0x182/0x530 [i915] i915_driver_load+0xaa9/0x1720 [i915] i915_pci_probe+0x2e/0x90 [i915] pci_device_probe+0x9c/0x120 driver_probe_device+0x2a3/0x480 __driver_attach+0xd9/0xe0 bus_for_each_dev+0x57/0x90 bus_add_driver+0x168/0x260 driver_register+0x52/0xc0 do_one_initcall+0x39/0x150 do_init_module+0x56/0x1ef load_module+0x231c/0x2d70 SyS_finit_module+0xa5/0xe0 entry_SYSCALL_64_fastpath+0x1c/0x89 -> #0 (&dev->struct_mutex){+.+.}: __mutex_lock+0x81/0x9b0 i915_mutex_lock_interruptible+0x47/0x130 [i915] i915_gem_fault+0x201/0x790 [i915] __do_fault+0x15/0x70 __handle_mm_fault+0x677/0xdc0 handle_mm_fault+0x14f/0x2f0 __do_page_fault+0x2d1/0x560 page_fault+0x4c/0x60 other info that might help us debug this: Chain exists of: &dev->struct_mutex --> &sb->s_type->i_mutex_key#3 --> &mm->mmap_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); lock(&sb->s_type->i_mutex_key#3); lock(&mm->mmap_sem); lock(&dev->struct_mutex); *** DEADLOCK *** 1 lock held by debugfs_test/1388: #0: (&mm->mmap_sem){++++}, at: [<0000000029a9c131>] __do_page_fault+0x106/0x560 stack backtrace: CPU: 2 PID: 1388 Comm: debugfs_test Not tainted 4.15.0-rc6-CI-Patchwork_7614+ #1 Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J4205-ITX, BIOS P1.10 09/29/2016 Call Trace: dump_stack+0x5f/0x86 print_circular_bug.isra.18+0x1d0/0x2c0 __lock_acquire+0x14ae/0x1b60 ? lock_acquire+0xaf/0x200 lock_acquire+0xaf/0x200 ? i915_mutex_lock_interruptible+0x47/0x130 [i915] __mutex_lock+0x81/0x9b0 ? i915_mutex_lock_interruptible+0x47/0x130 [i915] ? i915_mutex_lock_interruptible+0x47/0x130 [i915] ? i915_mutex_lock_interruptible+0x47/0x130 [i915] i915_mutex_lock_interruptible+0x47/0x130 [i915] ? __pm_runtime_resume+0x4f/0x80 i915_gem_fault+0x201/0x790 [i915] __do_fault+0x15/0x70 ? _raw_spin_unlock+0x29/0x40 __handle_mm_fault+0x677/0xdc0 handle_mm_fault+0x14f/0x2f0 __do_page_fault+0x2d1/0x560 ? page_fault+0x36/0x60 page_fault+0x4c/0x60 v2: Added lock protection to guc->log.runtime.relay_chan (Chris) Fixed locking inside guc_flush_logs uncovered by new lockdep. v3: Locking guc_read_update_log_buffer entirely with relay_lock. (Chris) Prepared intel_guc_init_early. Moved relay_lock inside relay_create relay_destroy, relay_file_create, guc_read_update_log_buffer. (Michal) Removed struct_mutex lock around guc_log_flush and removed usage of guc_log_has_relay() from runtime_create path as it needs struct_mutex lock. v4: Handle NULL relay sub buffer pointer earlier in read_update_log_buffer (Chris). Fixed comment suffix **/. (Michal) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104693 Testcase: igt/debugfs_test/read_all_entries # with enable_guc=1 and guc_log_level=1 Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Marta Lofstedt <marta.lofstedt@intel.com> Cc: Michal Winiarski <michal.winiarski@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/1516808821-3638-3-git-send-email-sagar.a.kamble@intel.com
2017-12-14drm/i915/guc: Extract guc_init from guc_init_hwMichał Winiarski
After GPU reset, GuC HW needs to be reinitialized (with FW reload). Unfortunately, we're doing some extra work there (mostly allocating stuff), work that can be moved to guc_init and called once at driver load time. As a side effect we're no longer hitting an assert in i915_ggtt_enable_guc on suspend/resume. v2: Do not duplicate disable_communication / reset_guc_interrupts v3: Add proper teardown after rebase References: 04f7b24eccdf ("drm/i915/guc: Assert that we switch between known ggtt->invalidate functions") Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20171213221352.7173-3-michal.winiarski@intel.com
2017-12-14drm/i915/guc: Move GuC workqueue allocations outside of the mutexMichał Winiarski
This gets rid of the following lockdep splat: ====================================================== WARNING: possible circular locking dependency detected 4.15.0-rc2-CI-Patchwork_7428+ #1 Not tainted ------------------------------------------------------ debugfs_test/1351 is trying to acquire lock: (&dev->struct_mutex){+.+.}, at: [<000000009d90d1a3>] i915_mutex_lock_interruptible+0x47/0x130 [i915] but task is already holding lock: (&mm->mmap_sem){++++}, at: [<000000005df01c1e>] __do_page_fault+0x106/0x560 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&mm->mmap_sem){++++}: __might_fault+0x63/0x90 _copy_to_user+0x1e/0x70 filldir+0x8c/0xf0 dcache_readdir+0xeb/0x160 iterate_dir+0xe6/0x150 SyS_getdents+0xa0/0x130 entry_SYSCALL_64_fastpath+0x1c/0x89 -> #5 (&sb->s_type->i_mutex_key#5){++++}: lockref_get+0x9/0x20 -> #4 ((completion)&req.done){+.+.}: wait_for_common+0x54/0x210 devtmpfs_create_node+0x130/0x150 device_add+0x5ad/0x5e0 device_create_groups_vargs+0xd4/0xe0 device_create+0x35/0x40 msr_device_create+0x22/0x40 cpuhp_invoke_callback+0xc5/0xbf0 cpuhp_thread_fun+0x167/0x210 smpboot_thread_fn+0x17f/0x270 kthread+0x173/0x1b0 ret_from_fork+0x24/0x30 -> #3 (cpuhp_state-up){+.+.}: cpuhp_issue_call+0x132/0x1c0 __cpuhp_setup_state_cpuslocked+0x12f/0x2a0 __cpuhp_setup_state+0x3a/0x50 page_writeback_init+0x3a/0x5c start_kernel+0x393/0x3e2 secondary_startup_64+0xa5/0xb0 -> #2 (cpuhp_state_mutex){+.+.}: __mutex_lock+0x81/0x9b0 __cpuhp_setup_state_cpuslocked+0x4b/0x2a0 __cpuhp_setup_state+0x3a/0x50 page_alloc_init+0x1f/0x26 start_kernel+0x139/0x3e2 secondary_startup_64+0xa5/0xb0 -> #1 (cpu_hotplug_lock.rw_sem){++++}: cpus_read_lock+0x34/0xa0 apply_workqueue_attrs+0xd/0x40 __alloc_workqueue_key+0x2c7/0x4e1 intel_guc_submission_init+0x10c/0x650 [i915] intel_uc_init_hw+0x29e/0x460 [i915] i915_gem_init_hw+0xca/0x290 [i915] i915_gem_init+0x115/0x3a0 [i915] i915_driver_load+0x9a8/0x16c0 [i915] i915_pci_probe+0x2e/0x90 [i915] pci_device_probe+0x9c/0x120 driver_probe_device+0x2a3/0x480 __driver_attach+0xd9/0xe0 bus_for_each_dev+0x57/0x90 bus_add_driver+0x168/0x260 driver_register+0x52/0xc0 do_one_initcall+0x39/0x150 do_init_module+0x56/0x1ef load_module+0x231c/0x2d70 SyS_finit_module+0xa5/0xe0 entry_SYSCALL_64_fastpath+0x1c/0x89 -> #0 (&dev->struct_mutex){+.+.}: lock_acquire+0xaf/0x200 __mutex_lock+0x81/0x9b0 i915_mutex_lock_interruptible+0x47/0x130 [i915] i915_gem_fault+0x201/0x760 [i915] __do_fault+0x15/0x70 __handle_mm_fault+0x85b/0xe40 handle_mm_fault+0x14f/0x2f0 __do_page_fault+0x2d1/0x560 page_fault+0x22/0x30 other info that might help us debug this: Chain exists of: &dev->struct_mutex --> &sb->s_type->i_mutex_key#5 --> &mm->mmap_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); lock(&sb->s_type->i_mutex_key#5); lock(&mm->mmap_sem); lock(&dev->struct_mutex); *** DEADLOCK *** 1 lock held by debugfs_test/1351: #0: (&mm->mmap_sem){++++}, at: [<000000005df01c1e>] __do_page_fault+0x106/0x560 stack backtrace: CPU: 2 PID: 1351 Comm: debugfs_test Not tainted 4.15.0-rc2-CI-Patchwork_7428+ #1 Hardware name: /NUC6i5SYB, BIOS SYSKLi35.86A.0057.2017.0119.1758 01/19/2017 Call Trace: dump_stack+0x5f/0x86 print_circular_bug+0x230/0x3b0 check_prev_add+0x439/0x7b0 ? lockdep_init_map_crosslock+0x20/0x20 ? unwind_get_return_address+0x16/0x30 ? __lock_acquire+0x1385/0x15a0 __lock_acquire+0x1385/0x15a0 lock_acquire+0xaf/0x200 ? i915_mutex_lock_interruptible+0x47/0x130 [i915] __mutex_lock+0x81/0x9b0 ? i915_mutex_lock_interruptible+0x47/0x130 [i915] ? i915_mutex_lock_interruptible+0x47/0x130 [i915] ? i915_mutex_lock_interruptible+0x47/0x130 [i915] i915_mutex_lock_interruptible+0x47/0x130 [i915] ? __pm_runtime_resume+0x4f/0x80 i915_gem_fault+0x201/0x760 [i915] __do_fault+0x15/0x70 __handle_mm_fault+0x85b/0xe40 handle_mm_fault+0x14f/0x2f0 __do_page_fault+0x2d1/0x560 page_fault+0x22/0x30 RIP: 0033:0x7f98d6f49116 RSP: 002b:00007ffd6ffc3278 EFLAGS: 00010283 RAX: 00007f98d39a2bc0 RBX: 0000000000000000 RCX: 0000000000001680 RDX: 0000000000001680 RSI: 00007ffd6ffc3400 RDI: 00007f98d39a2bc0 RBP: 00007ffd6ffc33a0 R08: 0000000000000000 R09: 00000000000005a0 R10: 000055e847c2a830 R11: 0000000000000002 R12: 0000000000000001 R13: 000055e847c1d040 R14: 00007ffd6ffc3400 R15: 00007f98d6752ba0 v2: Init preempt_work unconditionally (Chris) v3: Mention that we need the enable_guc=1 for lockdep splat (Chris) Testcase: igt/debugfs_test/read_all_entries # with i915.enable_guc=1 Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20171213221352.7173-2-michal.winiarski@intel.com
2017-12-06drm/i915/guc: Combine enable_guc_loading|submission modparamsMichal Wajdeczko
We currently have two module parameters that control GuC: "enable_guc_loading" and "enable_guc_submission". Whenever we need submission=1, we also need loading=1. We also need loading=1 when we want to want to load and verify the HuC. Lets combine above module parameters into one "enable_guc" modparam. New supported bit values are: 0=disable GuC (no GuC submission, no HuC) 1=enable GuC submission 2=enable HuC load Special value "-1" can be used to let driver decide what option should be enabled for given platform based on hardware/firmware availability or preference. Explicit enabling any of the GuC features makes GuC load a required step, fallback to non-GuC mode will not be supported. v2: Don't use -EIO v3: define modparam bits (Chris) v4: rely on implicit cast (Chris) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20171206135316.32556-6-michal.wajdeczko@intel.com
2017-10-06drm/i915/guc: Move GuC core definitions into dedicated filesMichal Wajdeczko
Move GuC core definitions into dedicated files as we want to keep GuC specific code in separated files. v2: move all functions in single patch (Joonas) fix old checkpatch issues (Sagar) v3: rebased Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> #1 Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171004181343.66348-4-michal.wajdeczko@intel.com
2017-10-06drm/i915/guc: Move GuC submission declarations into dedicated headerMichal Wajdeczko
Move GuC submission declarations into dedicated header as we want to keep uC specific code in separate files. v2: fix include (Chris) update commit message (Joonas) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: MichaĹ Winiarski <michal.winiarski@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171004181343.66348-3-michal.wajdeczko@intel.com
2017-10-06drm/i915/guc: Move GuC log declarations into dedicated headerMichal Wajdeczko
Move GuC log declarations into dedicated header as we want to keep component specific code in separate files. v2: fix includes (Chris) update commit message (Joonas) Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171004181343.66348-2-michal.wajdeczko@intel.com
2017-10-04drm/i915/huc: Move HuC declarations into dedicated headerMichal Wajdeczko
We want to keep each uC specific code in separate files. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171004153327.32608-6-michal.wajdeczko@intel.com
2017-10-04drm/i915/uc: Move uC fw helper code into dedicated filesMichal Wajdeczko
This is a prerequisite to unblock next steps. v2: correct include order (Joonas) v3: use common function prefix (Joonas) add kerneldoc (Michal) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171004153327.32608-5-michal.wajdeczko@intel.com
2017-10-04drm/i915/uc: Create intel_uc_init_mmioSagar Arun Kamble
This patch adds new function intel_uc_init_mmio which will initialize MMIO access related variables prior to uc load/init. v2: Removed unnecessary export of guc_send_init_regs. Created intel_uc_init_mmio that currently wraps guc_init_send_regs. (Michal) v3 (Michal): add kerneldoc (Joonas) Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michał Winiarski <michal.winiarski@intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171004153327.32608-4-michal.wajdeczko@intel.com
2017-10-04drm/i915/uc: Drop unnecessary forward declarationMichal Wajdeczko
We don't need it here. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171004153327.32608-3-michal.wajdeczko@intel.com
2017-09-26drm/i915/huc: Reorganize HuC authenticationSagar Arun Kamble
Prepared intel_auth_huc to separate HuC specific functionality from GuC send action. Created new header intel_huc.h to group HuC specific declarations. v2: Changed argument preparation for AUTHENTICATE_HUC. s/intel_auth_huc/intel_huc_auth. Deferred creation of intel_huc.h to later patch. v3: Rebase as intel_guc.h is removed. Added param description to intel_huc_auth. (Michal) v4: Rebase as intel_guc.h is added again. :) v5: Rebase w.r.t removal of GuC code restructuring. v6-v7: Rebase. v8: Tagged subject as drm/i915/huc. (Michal Wajdeczko) Added kernel-doc description to intel_huc_auth and intel_guc_auth_huc. s/dev_priv/i915 and removed unnecessary variable offset. (Joonas) v9: Rebase. Had conflict with i915_modparams change. Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michał Winiarski <michal.winiarski@intel.com> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1506410236-17926-1-git-send-email-sagar.a.kamble@intel.com
2017-09-18drm/i915/guc: Cleanup adding GuC work itemsMichał Winiarski
We can just operate on the wq_tail directly (in the process descriptor). This allows us to remove the duplicated tail from the client. While I'm here let's also remove the constants kept in the client and document our locking requirements. This causes a small change in one of GuC debugfs files. We're no longer reporting constant values (which I don't think is a problem), but we're also no longer reporting the tail (does anyone care?). v2: Update tail after wqi contents. (Chris) v3: Really update tail after wqi contents. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20170918092536.12287-1-michal.winiarski@intel.com Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-09-18drm/i915/guc: Simplify GuC doorbell logicMichał Winiarski
All we're really doing is incrementing a simple counter in a doorbell_info struct. We can do without extra variables and a separate counter kept in guc_client. Since it's gone, we're also removing its debugfs. The only functional change here, is that we're no longer treating 0 as a special value. GuC doesn't seem to care, why should we? v2: Restore desc->tail update. v3: Drop the retry loop, assert that doorbell cookie doesn't change behind our back. v4: WARN rather than BUG, use xchg. (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170914105125.3031-1-michal.winiarski@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-09-18drm/i915/guc: Submit GuC workitems containing coalesced requestsMichał Winiarski
To create an upper bound on number of GuC workitems, we need to change the way that requests are being submitted. Rather than submitting each request as an individual workitem, we can do coalescing in a similar way we're handlig execlist submission ports. We also need to stop pretending that we're doing "lite-restore" in GuC submission (we would create a workitem each time we hit this condition). This allows us to completely remove the reservation, replacing it with a compile time check. v2: Also coalesce when replaying on reset (Daniele) v3: Consistent wq_resv - per-request (Daniele) v4: Squash removing wq_resv v5: Reflect i915_guc_submit argument changes in doc v6: Rebase on top of execlists reset/restart fix (Chris,Michał) References: https://bugs.freedesktop.org/show_bug.cgi?id=101873 Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Jeff McGee <jeff.mcgee@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20170914083216.10192-2-michal.winiarski@intel.com Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-09-18drm/i915/guc: Remove obsolete comments and remove unused variableMichał Winiarski
Originally removed in: c1adab970348 ("drm/i915/guc: Remove failed doorbell stat from debugfs") f1448a62a103 ("drm/i915/guc: Remove last submission result from debugfs") Were accidentally restored in: 925344ccc91d ("BackMerge tag 'v4.12-rc5' into drm-next") We can also remove unused variable and replace it with a WARN. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20170914083216.10192-1-michal.winiarski@intel.com Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-06-16BackMerge tag 'v4.12-rc5' into drm-nextDave Airlie
Linux 4.12-rc5 for nouveau fixes
2017-06-07drm/i915/guc: Remove stale comment for q_failMichal Wajdeczko
This member was dropped long time ago. Fixes: 774439e1 ("drm/i915/guc: re-optimise i915_guc_client layout") Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170518113104.54400-1-michal.wajdeczko@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit 4afc67be8e203ee8f5e95e829c0777eae7a14702) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-05-26drm/i915/guc: capture GuC logs if FW fails to loadDaniele Ceraolo Spurio
We're currently deleting the GuC logs if the FW fails to load, but those are still useful to understand why the loading failed. Keeping the object around allows us to access them after driver load is completed. v2: keep the object around instead of using kernel memory (chris) don't store the logs in the gpu_error struct (Chris) add a check on guc_log_level to avoid snapshotting empty logs v3: use separate debugfs for error log (Chris) v4: rebased v5: clean up obj selection, move err_load inside guc_log, move err_load cleanup, rename functions (Michal) v6: move obj back to intel_guc, move functions to intel_uc.c, don't clear obj on new GuC load, free object only if enable_guc_loading is set (Michal) Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Oscar Mateo <oscar.mateo@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1495475428-19295-1-git-send-email-daniele.ceraolospurio@intel.com Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Tested-by: Michel Thierry <michel.thierry@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-05-26drm/i915/guc: Introduce buffer based cmd transportMichal Wajdeczko
Buffer based command transport can replace MMIO based mechanism. It may be used to perform host-2-guc and guc-to-host communication. Portions of this patch are based on work by: Michel Thierry <michel.thierry@intel.com> Robert Beckett <robert.beckett@intel.com> Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> v2: use gem_object_pin_map (Chris) don't use DEBUG_RATELIMITED (Chris) don't track action stats (Chris) simplify next fence (Chris) use READ_ONCE (Chris) move blob allocation to new function (Chris) v3: use static owner id (Daniele) v4: but keep channel initialization generic (Daniele) and introduce owner_sub_id (Daniele) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/20170526111326.87280-3-michal.wajdeczko@intel.com
2017-05-19drm/i915/guc: Remove action status and statistics from debugfsMichal Wajdeczko
Usefulness of these stats was over-advertised. v2: remove duplicated engine stats (Chris) Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170515170610.35528-1-michal.wajdeczko@intel.com Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-05-19drm/i915/guc: Remove last submission result from debugfsMichal Wajdeczko
Debugfs does not seems to be a right place to display transient data. If we want to capture errors, we should log them. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170518113104.54400-3-michal.wajdeczko@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-05-19drm/i915/guc: Remove failed doorbell stat from debugfsMichal Wajdeczko
This stat is almost always zero unless fatal error occurs, which should be reported by other means anyway. Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170518113104.54400-2-michal.wajdeczko@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-05-19drm/i915/guc: Remove stale comment for q_failMichal Wajdeczko
This member was dropped long time ago. Fixes: 774439e1 ("drm/i915/guc: re-optimise i915_guc_client layout") Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170518113104.54400-1-michal.wajdeczko@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-05-11drm/i915/guc: Make scratch register base and count flexibleMichal Wajdeczko
We are using some scratch registers in MMIO based send function. Make their base and count flexible in preparation of upcoming GuC firmware/hardware changes. While around, change cmd len parameter verification from WARN_ON to GEM_BUG_ON as we don't need this all the time. v2: call out WARN/GEM_BUG change in the commit msg (Daniele) v3: don't overqualify the ints (Chris) v4: rebase and use proper enum Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Suggested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-05-11drm/i915/guc: Move notification code into virtual functionMichal Wajdeczko
Prepare for alternate GuC notification mechanism. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> [Joonas: Added newlines] Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-05-02drm/i915/guc: Enable send function only after successful initMichal Wajdeczko
It is safer to setup valid send function after successful GuC hardware initialization. In addition we prepare placeholder where we can setup any alternate GuC communication mechanism. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170502103243.54940-1-michal.wajdeczko@intel.com [ickle: Fixup ENODEV for an impossible error path] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-04-04drm/i915/huc: Simplify intel_huc_init_hw()Michal Wajdeczko
On last guc/huc cleanup series we've simplified guc init hw function but missed the one for the huc. While here, change its signature as we don't care about huc loading status. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170331115709.181940-1-michal.wajdeczko@intel.com
2017-03-31drm/i915/uc: Drop use of MISSING_CASE on trivial enumsMichal Wajdeczko
We can rely on compiler to notify us if we miss any case. This approach may also reduce driver size (reported ~4K). Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170331102652.177664-1-michal.wajdeczko@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-03-31drm/i915/huc: Remove unused intel_huc_fini()Michal Wajdeczko
This function is no longer used. Its functionality is covered by intel_uc_fini_fw(). Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-31drm/i915/uc: Add intel_uc_fw_type_repr()Michal Wajdeczko
Some of the DRM_NOTE messages are just using "uC" without specifying which uc they are related to. We can be more user friendly. v2: moved to the header (Joonas) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-31drm/i915/uc: Move intel_uc_fw_status_repr() to intel_uc.hMichal Wajdeczko
The file fits better. Also use "<invalid>" for invalid case. v2: move directly to .h (Joonas) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-27drm/i915/uc: Make intel_uc_prepare_fw() staticMichal Wajdeczko
There is no need to expose this function as it is called from one function only. Also move it up to avoid forward declaration. v2: drop intel_ prefix (Oscar) and rename to fetch_uc_fw (Michal) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170327094510.167400-1-michal.wajdeczko@intel.com Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-03-23drm/i915/guc: Refactor the concept "GuC context descriptor" into "GuC stage ↵Oscar Mateo
descriptor" A GuC context and a HW context are in no way related, so the name "GuC context descriptor" is very unfortunate, because a new reader of the code gets overwhelmed very quickly with a lot of things called "context" that refer to different things. We can improve legibility a lot by simply renaming a few objects in the GuC code. v2: - Rebased - s/ctx_desc_pool/stage_desc_pool - Move some explanations to the definition of the guc_stage_desc struct (Chris) v3: - Calculate gemsize with less intermediate steps (Joonas) - Use BIT() macro (Joonas) Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-23drm/i915/guc: Improve the GuC documentation & comments about proxy submissionsOscar Mateo
While at it, fix a typo (s/ring_lcra/ring_lrca) and improve the naming of one firware interface field (s/ring_tail/submit_element_info, since it can contain more than just the ring tail). No change in functionality. v2: - Remove reference to "unique user" of the GuC (Daniele) - Keep mention to renaming from "GuC context" to "client" (Daniele) Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-23drm/i915/guc: Make intel_guc_send a function pointerOscar Mateo
Prepare for an alternate GuC communication interface. v2: Make a few functions static and name them correctly while we are at it (Oscar), but leave an intel_guc_send_mmio interface for users that require old-style communication. v3: Send intel_uc_init_early back to the top (Michal). Signed-off-by: Michel Thierry <michel.thierry@intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-23drm/i915/guc: Break out the GuC log extras into their own "runtime" structOscar Mateo
When initializing the GuC log struct, there is an object we need to allocate always, since the GuC needs its address at fw load time. The rest is only needed during runtime, in the sense that we only create if we actually enable GuC logging. Make that distinction explicit by subdividing further the intel_guc_log struct. v2: Call the new struct "runtime", instead of "extras" (Joonas) v3: Check indent (Joonas) Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-23drm/i915/guc: Add onion teardown to the GuC setupOscar Mateo
Starting with intel_guc_loader, down to intel_guc_submission and finally to intel_guc_log. v2: - Null execbuf client outside guc_client_free (Daniele) - Assert if things try to get allocated twice (Daniele/Joonas) - Null guc->log.buf_addr when destroyed (Daniele) - Newline between returning success and error labels (Joonas) - Remove some unnecessary comments (Joonas) - Keep guc_log_create_extras naming convention (Joonas) - Helper function guc_log_has_extras (Joonas) - No need for separate relay_channel create/destroy. It's just another extra. - No need to nullify guc->log.flush_wq when destroyed (Joonas) - Hoist the check for has_extras out of guc_log_create_extras (Joonas) - Try to do i915_guc_log_register/unregister calls (kind of) symmetric (Daniele) - Make sure initel_guc_fini is not called before init is ever called (Daniele) v3: - Remove unnecessary parenthesis (Joonas) - Check for logs enabled on debugfs registration - Rebase on top of Tvrtko's "Fix request re-submission after reset" v4: - Rebased - Comment around enabling/disabling interrupts inside GuC logging (Joonas) Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-23drm/i915/guc: Keep the ctx_pool_vaddr mapped, for easy accessOscar Mateo
The GuC descriptor is big in size. If we use a local definition of guc_desc we have a chance to overflow stack, so avoid it. Also, Chris abhors scatterlists :) v2: Rebased, helper function to retrieve the context descriptor, s/ctx_pool_vma/ctx_pool/ v3: Zero out guc_context_desc before initialization v4: Do not do arithmetic on void pointers (Daniele) v5: Nicer than arithmetic on pointers (Chris, Joonas) Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-23drm/i915/guc: Sanitize GuC client initializationJoonas Lahtinen
Started adding proper teardown to guc_client_alloc, ended up removing quite a few dead ends where errors communicating with the GuC were silently ignored. There also seemed to be quite a few erronous teardown actions performed in case of an error (ordering wrong). v2: - Increase function symmetry/proximity (Michal/Daniele) - Fix __reserve_doorbell accounting for high priority (Daniele) - Call __update_doorbell_desc! (Daniele) - Isolate __guc_{,de}allocate_doorbell (Michal/Daniele) v3: - "Select" a cacheline is a more accurate verb than "reserve" (Daniele). - We cannot update & create the doorbell without reserving it first, so move the whole doorbell creation for execbuf_client to the submission enable (Oscar).i - Add a fixme for ignoring possible doorbell destroy errors. v4: - Remove comment about is_high_priority (Daniele) - Debug message typo (Daniele) - Reuse __get_doorbell in more places (Daniele) - Do not do arithmetic on void pointers (Daniele) - Add comment to __reset_doorbell (Daniele) v5: - gccisms like arithmetic on void pointers are not frowned upon (Oscar) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
2017-03-16drm/i915/uc: Rename intel_uc_fw.fw to .typeArkadiusz Hiler
This field is used to determine which kind of firmware the struct describes (GuC/HuC) - the name does not reflect. The enum used here have "type" in the name, so let's go with that. Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170315133415.15343-1-arkadiusz.hiler@intel.com
2017-03-15drm/i915/uc: Separate firmware selection and preparationArkadiusz Hiler
intel_{h,g}uc_init_fw selects correct firmware and then triggers it's preparation (fetch + initial parsing). This change separates out select steps, so those can be called by the sanitize_options(). Then, during the init_fw(), we prepare the firmware if the firmware was selected. Cc: Michal Winiarski <michal.winiarski@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-15drm/i915/guc: Simplify intel_guc_init_hw()Arkadiusz Hiler
Current version of intel_guc_init_hw() does a lot: - cares about submission - loads huc - implement WA This change offloads some of the logic to intel_uc_init_hw(), which now cares about the above. v2: rename guc_hw_reset and fix typo in define name (M. Wajdeczko) v3: rename once again v4: remove spurious comments and add some style (J. Lahtinen) v5: flow changes, got rid of dead checks (M. Wajdeczko) v6: rebase v7: rebase & onion teardown (J. Lahtinen) Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Michal Winiarski <michal.winiarski@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-15drm/i915/guc: Extract param logic form guc_init_fw()Arkadiusz Hiler
Let intel_guc_init_fw() focus on determining and fetching the correct firmware. This patch introduces intel_uc_sanitize_options() that is called from intel_sanitize_options(). Then, if we have GuC, we can call intel_guc_init_fw() conditionally and we do not have to do the internal checks. v2: fix comment, notify when nuking GuC explicitly enabled (M. Wajdeczko) v3: fix comment again, change the nuke message (M. Wajdeczko) v4: update title to reflect new function name + rebase v5: text && remove 2 uneccessary checks (M. Wajdeczko) Cc: Michal Winiarski <michal.winiarski@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 02:18:16 +0000