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path: root/drivers/gpu/drm/i915/intel_guc.c
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2018-03-28drm/i915: Use correct reST syntax for WOPCM and GuC kernel-doc diagramsYaodong Li
GuC Address Space and WOPCM Layout diagrams won't be generated correctly by sphinx build if not using proper reST syntax. This patch uses reST literal blocks to make sure GuC Address Space and WOPCM Layout diagrams to be generated correctly, and it also corrects some errors in the diagram description. v2: - Fixed errors in diagram description v3: - Updated GuC Address Space kernel-doc based on Michal's suggestion v4: - Added WOPCM layout and GuC address space docs into i915.rst (Joonas) Signed-off-by: Jackie Li <yaodong.li@intel.com> Cc: 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: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1521763162-11424-1-git-send-email-yaodong.li@intel.com
2018-03-21drm/i915/guc: Handle GuC log flush event in dedicated functionMichal Wajdeczko
We already try to keep all GuC log related code in separate file, handling flush event should be placed there too. This will also allow future code reuse. v2: rebased 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: Oscar Mateo <oscar.mateo@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180319125049.48932-1-michal.wajdeczko@intel.com
2018-03-20drm/i915/guc: Don't try to enable GuC logging when we're not using GuCMichał Winiarski
When changing the default values for guc_log_level, we accidentally left the log enabled on non-guc platforms. Let's fix that. v2: Define the levels used and remove (now obsolete) comments (Chris) v3: Use "IS" rather than "TO" for booleans (Chris) Fixes: 9605d1ce7c6b ("drm/i915/guc: Default to non-verbose GuC logging") Reported-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sagar Arun Kamble <sagar.a.kamble@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/20180320115517.20423-1-michal.winiarski@intel.com
2018-03-19drm/i915/guc: Demote GuC error messagesMichał Winiarski
We're using those functions in selftests, and the callers are expected to do the error handling anyways. Let's demote all GuC actions and doorbell creation to DEBUG_DRIVER. Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michel Thierry <michel.thierry@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/20180319095348.9716-12-michal.winiarski@intel.com
2018-03-19drm/i915/guc: Allow user to control default GuC loggingMichał Winiarski
While both naming and actual log enable logic in GuC interface are confusing, we can simply expose the default log as yet another log level. GuC logic aside, from i915 point of view we now have the following GuC log levels: 0 Log disabled 1 Non-verbose log 2-5 Verbose log v2: Adjust naming after rebase. v3: Fixed the log_level logic error introduced on rebase. 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/20180319095348.9716-10-michal.winiarski@intel.com
2018-03-19drm/i915/guc: Don't print out relay statistics when relay is disabledMichał Winiarski
If nobody has enabled the relay, we're not comunicating with GuC, which means that the stats don't have any meaning. Let's also remove interrupt counter and tidy the debugfs formatting. v2: Correct stats accounting (Sagar) v3: Corrected one more error in stats accounting, move relay_enabled (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/20180319095348.9716-9-michal.winiarski@intel.com
2018-03-19drm/i915/guc: Get rid of GuC log runtimeMichał Winiarski
Runtime is not a very good name. Let's also move counting relay overflows inside relay struct. v2: Rename things rather than remove the struct (Chris) 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/20180319095348.9716-7-michal.winiarski@intel.com
2018-03-19drm/i915/guc: Keep GuC interrupts enabled when using GuCMichał Winiarski
The GuC log contains a separate space used for crash dump. We even get a separate notification for it. While we're not handling crash differently yet, it makes sense to decouple the two right now to simplify the following patches. v2: Move guc_log_flush_irq_disable up to avoid movement in following patches (Sagar). v3: s/guc_log_flush_irq_*/guc_flush_log_msg_*, rebase after mass rename 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> (v2) 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/20180319095348.9716-1-michal.winiarski@intel.com
2018-03-15drm/i915/guc: Update syntax of GuC log functionsMichal Wajdeczko
We moved GuC log related data and code to separate files and definition but we didn't change functions syntax to follow object-verb pattern. Let's fix that before we continue with next round of code refactoring. v2: rebased Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michal Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180314144539.11152-1-michal.wajdeczko@intel.com [ickle: checkpatch booleans] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-03-14drm/i915: Implement dynamic GuC WOPCM offset and size calculationJackie Li
Hardware may have specific restrictions on GuC WOPCM offset and size. On Gen9, the value of the GuC WOPCM size register needs to be larger than the value of GuC WOPCM offset register + a Gen9 specific offset (144KB) for reserved GuC WOPCM. Fail to enforce such a restriction on GuC WOPCM size will lead to GuC firmware execution failures. On the other hand, with current static GuC WOPCM offset and size values (512KB for both offset and size), the GuC WOPCM size verification will fail on Gen9 even if it can be fixed by lowering the GuC WOPCM offset by calculating its value based on HuC firmware size (which is likely less than 200KB on Gen9), so that we can have a GuC WOPCM size value which is large enough to pass the GuC WOPCM size check. This patch updates the reserved GuC WOPCM size for RC6 context on Gen9 to 24KB to strictly align with the Gen9 GuC WOPCM layout. It also adds support to verify the GuC WOPCM size aganist the Gen9 hardware restrictions. To meet all above requirements, let's provide dynamic partitioning of the WOPCM that will be based on platform specific HuC/GuC firmware sizes. v2: - Removed intel_wopcm_init (Ville/Sagar/Joonas) - Renamed and Moved the intel_wopcm_partition into intel_guc (Sagar) - Removed unnecessary function calls (Joonas) - Init GuC WOPCM partition as soon as firmware fetching is completed v3: - Fixed indentation issues (Chris) - Removed layering violation code (Chris/Michal) - Created separat files for GuC wopcm code (Michal) - Used inline function to avoid code duplication (Michal) v4: - Preset the GuC WOPCM top during early GuC init (Chris) - Fail intel_uc_init_hw() as soon as GuC WOPCM partitioning failed v5: - Moved GuC DMA WOPCM register updating code into intel_wopcm.c - Took care of the locking status before writing to GuC DMA Write-Once registers. (Joonas) v6: - Made sure the GuC WOPCM size to be multiple of 4K (4K aligned) v8: - Updated comments and fixed naming issues (Sagar/Joonas) - Updated commit message to include more description about the hardware restriction on GuC WOPCM size (Sagar) v9: - Minor changes variable names and code comments (Sagar) - Added detailed GuC WOPCM layout drawing (Sagar/Michal) - Refined macro definitions to be reader friendly (Michal) - Removed redundent check to valid flag (Michal) - Unified first parameter for exported GuC WOPCM functions (Michal) - Refined the name and parameter list of hardware restriction checking functions (Michal) v10: - Used shorter function name for internal functions (Joonas) - Moved init-ealry function into c file (Joonas) - Consolidated and removed redundant size checks (Joonas/Michal) - Removed unnecessary unlikely() from code which is only called once during boot (Joonas) - More fixes to kernel-doc format and content (Michal) - Avoided the use of PAGE_MASK for 4K pages (Michal) - Added error log messages to error paths (Michal) v11: - Replaced intel_guc_wopcm with more generic intel_wopcm and attached intel_wopcm to drm_i915_private instead intel_guc (Michal) - dynamic calculation of GuC non-wopcm memory start (a.k.a WOPCM Top offset from GuC WOPCM base) (Michal) - Moved WOPCM marco definitions into .c source file (Michal) - Exported WOPCM layout diagram as kernel-doc (Michal) v12: - Updated naming, function kernel-doc to align with new changes (Michal) v13: - Updated the ordering of s-o-b/cc/r-b tags (Sagar) - Corrected one tense error in comment (Sagar) - Corrected typos and removed spurious comments (Joonas) Bspec: 12690 Signed-off-by: Jackie Li <yaodong.li@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: John Spotswood <john.a.spotswood@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> (v8) Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v9) Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> (v11) Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v12) 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/1520987574-19351-2-git-send-email-yaodong.li@intel.com
2018-03-14drm/i915/guc: Rename guc_ggtt_offset to intel_guc_ggtt_offsetJackie Li
GuC related exported functions should start with "intel_guc_" prefix and pass intel_guc as the first parameter since its GuC related. Current guc_ggtt_offset() failed to follow this code convention and this is a problem for future patches that needs to access intel_guc data to verify the GGTT offset against the GuC WOPCM top. This patch renames the guc_ggtt_offset to intel_guc_ggtt_offset and updates the related code to pass intel_guc pointer to this function call, so that we can have a unified coding style for GuC code and also enable the future patches to get GuC related data from intel_guc to do the offset verification. Meanwhile, this patch also moves the GUC_GGTT_TOP from intel_guc_regs.h to intel_guc.h since it is not GuC register related definition. v8: - Fixed coding style issues and moved GUC_GGTT_TOP to intel_guc.h (Sagar) - Updated commit message to explain to reason and motivation to add intel_guc as the first parameter of intel_guc_ggtt_offset (Chris) v9: - Fixed code alignment issue due to line break (Chris) v10: - Removed unnecessary comments, redundant code and avoided reuse variable to avoid potential issues (Joonas) v13: - Updated the ordering of s-o-b/cc/r-b tags (Sagar) Signed-off-by: Jackie Li <yaodong.li@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@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: Sagar Arun Kamble <sagar.a.kamble@intel.com> (v8) Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v9) Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> (v11) Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v12) 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/1520987574-19351-1-git-send-email-yaodong.li@intel.com
2018-03-09drm/i915/guc: Move GuC notification handling to separate functionMichal Wajdeczko
To allow future code reuse. While here, fix comment style. v2: Notifications are a separate thing - rename the handler (Sagar) Suggested-by: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> 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: Oscar Mateo <oscar.mateo@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/20180308154707.21716-3-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
2018-02-27drm/i915/cnl: Add WaRsDisableCoarsePowerGatingRodrigo Vivi
Old Wa added now forever on CNL all steppings. With CPU P states enabled along with RC6, dispatcher hangs can happen. Cc: Rafael Antognolli <rafael.antognolli@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180222200535.9290-1-rodrigo.vivi@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
2018-01-18drm/i915/guc: Redefine guc_log_level modparam valuesMichal Wajdeczko
We used value -1 to indicate "disabled" and values 0..3 to indicate "enabled", but most of our other modparams are using -1 for "auto" mode and 0 for "disable". For consistency let's change our log level values to: -1: auto (depends on platform and Kconfig.debug settings) 0: disabled 1: enabled (severity level 0 = min) 2: enabled (severity level 1) 3: enabled (severity level 2) 4: enabled (severity level 3 = max) v2: fix commit message (Sagar) display sanitized modparam value (Sagar) unify sanitize messages (Sagar/Michal) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180111152441.21676-1-michal.wajdeczko@intel.com Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-01-03drm/i915/guc : Decoupling ADS and logs from submissionSujaritha Sundaresan
The Additional Data Struct (ADS) contains objects that are required by GuC post FW load and are not necessarily submission-only. Even with submission disabled we may require something inside the ADS, so it makes more sense for them to be always created. Similarly, we need to access GuC logs and even if GuC submission is disabled, to debug issues with GuC loading or with whatever we're using GuC for. v2: re-wording commit message (Sagar) Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> 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/1514928025-29659-1-git-send-email-sujaritha.sundaresan@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
2017-12-14drm/i915/guc: Move shared data allocation away from submission pathMichał Winiarski
We need shared data for actions (e.g. guc suspend/resume), and we're using those with GuC submission disabled. Let's introduce intel_guc_init and move shared data alloc there. This fixes GPF during module unload with HuC, but without GuC submission: BUG: unable to handle kernel NULL pointer dereference at 000000005aee7809 IP: intel_guc_suspend+0x34/0x140 [i915] PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP Modules linked in: i915(O-) netconsole x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel mei_me i2c_i801 mei prime_numbers [last unloaded: i915] CPU: 2 PID: 2794 Comm: rmmod Tainted: G U W O 4.15.0-rc2+ #297 Hardware name: /NUC6i5SYB, BIOS SYSKLi35.86A.0054.2016.0930.1102 09/30/2016 task: 0000000055945c61 task.stack: 00000000264ccb43 RIP: 0010:intel_guc_suspend+0x34/0x140 [i915] RSP: 0018:ffffc90000483df8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff880829180000 RCX: 0000000000000000 RDX: 0000000000000006 RSI: ffff880844c2c938 RDI: ffff880844c2c000 RBP: ffff880829180000 R08: 00000000a29c58c1 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa040ba40 R13: ffffffffa040bab0 R14: ffff88084a195060 R15: 000055df3ef357a0 FS: 00007ff43c043740(0000) GS:ffff88084e200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000f9 CR3: 000000083f179005 CR4: 00000000003606e0 Call Trace: i915_gem_suspend+0x9d/0x130 [i915] ? i915_driver_unload+0x68/0x180 [i915] i915_driver_unload+0x70/0x180 [i915] i915_pci_remove+0x15/0x20 [i915] pci_device_remove+0x36/0xb0 device_release_driver_internal+0x15f/0x220 driver_detach+0x3a/0x80 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x29/0x90 SyS_delete_module+0x150/0x1e0 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x7ff43b51b5c7 RSP: 002b:00007ffe6825a758 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff43b51b5c7 RDX: 000000000000000a RSI: 0000000000000800 RDI: 000055df3ef35808 RBP: 0000000000000000 R08: 00007ffe682596d1 R09: 0000000000000000 R10: 00007ff43b594880 R11: 0000000000000206 R12: 000055df3ef357a0 R13: 00007ffe68259740 R14: 000055df3ef35260 R15: 000055df3ef357a0 Code: 00 00 02 74 03 31 c0 c3 53 48 89 fb 48 83 ec 10 e8 52 0f f8 ff 48 b8 01 05 00 00 02 00 00 00 48 89 44 24 04 48 8b 83 00 12 00 00 <f6> 80 f9 00 00 00 01 0f 84 a7 00 00 00 f6 80 98 00 00 00 01 0f RIP: intel_guc_suspend+0x34/0x140 [i915] RSP: ffffc90000483df8 CR2: 00000000000000f9 ---[ end trace 23a192a61d937a3e ]--- Fixes: b8e5eb960b28 ("drm/i915/guc: Allocate separate shared data object for GuC communication") 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/20171213221352.7173-1-michal.winiarski@intel.com
2017-12-06drm/i915/guc: Introduce USES_GUC_xxx helper macrosMichal Wajdeczko
In the upcoming patch we will change the way how to recognize when GuC is in use. Using helper macros will minimize scope of that changes. While here, update dev_info message. 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> 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/20171206135316.32556-3-michal.wajdeczko@intel.com
2017-12-06drm/i915/guc: Move firmware selection to init_earlyMichal Wajdeczko
Doing GuC firmware path selection from sanitize_options function is not perfect, while there is no problem with doing so during early init stage as we already have all needed data. 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> 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/20171206135316.32556-2-michal.wajdeczko@intel.com
2017-12-01drm/i915: Remove unsafe i915.enable_rc6Chris Wilson
It has been many years since the last confirmed sighting (and fix) of an RC6 related bug (usually a system hang). Remove the parameter to stop users from setting dangerous values, as they often set it during triage and end up disabling the entire runtime pm instead (the option is not a fine scalpel!). Furthermore, it allows users to set known dangerous values which were intended for testing and not for production use. For testing, we can always patch in the required setting without having to expose ourselves to random abuse. v2: Fixup NEEDS_WaRsDisableCoarsePowerGating fumble, and document the lack of ilk support better. v3: Clear intel_info->rc6p if we don't support rc6 itself. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171201113030.18360-1-chris@chris-wilson.co.uk
2017-11-16drm/i915/guc: Rename i915_guc_submission.c|h to intel_guc_submission.c|hSagar Arun Kamble
With all component structures and functions named appropriately, change the names of GuC submission source files. There were bunch of style issues in guc_submission.c that are highlighted now by checkpatch. Fix those. Update name in Documentation/gpu. (Joonas) v2: Rebase. v3: Rebase. Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Michal Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Oscar Mateo <oscar.mateo@intel.com> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1510839162-25197-6-git-send-email-sagar.a.kamble@intel.com Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-11-02drm/i915/guc: Add support for reset engine using GuC commandsMichel Thierry
This patch adds per engine reset and recovery (TDR) support when GuC is used to submit workloads to GPU. In the case of i915 directly submission to ELSP, driver manages hang detection, recovery and resubmission. With GuC submission these tasks are shared between driver and GuC. i915 is still responsible for detecting a hang, and when it does it only requests GuC to reset that Engine. GuC internally manages acquiring forcewake and idling the engine before resetting it. Once the reset is successful, i915 takes over again and handles the resubmission. The scheduler in i915 knows which requests are pending so after resetting a engine, pending workloads/requests are resubmitted again. v2: s/i915_guc_request_engine_reset/i915_guc_reset_engine/ to match the non-guc function names. v3: Removed debug message about engine restarting from which request, since the new baseline do it regardless of submission mode. (Chris) v4: Rebase. v5: Do not pass unnecessary reporting flags to the fw (Jeff); tasklet_schedule(&execlists->irq_tasklet) handles the resubmit; rebase. v6: Rename the existing reset engine function and share a similar interface between guc and non-guc paths (Chris). Signed-off-by: Michel Thierry <michel.thierry@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20171031225309.10888-1-michel.thierry@intel.com Reviewed-by: Jeff McGee <jeff.mcgee@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-10-26drm/i915/guc: Allocate separate shared data object for GuC communicationMichał Winiarski
We were using first page of kernel context render state for sharing data with GuC. While it's justified by the fact that those pages are not used (note, GuC still enforces this layout and refuses to work if we remove the extra page in front), it's also confusing (why are we using this particular page?). Let's allocate a separate object instead. v2: Drop kernel_context from GuC suspend/resume action handlers (Michel) Suggested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> 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: Jeff McGee <jeff.mcgee@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Oscar Mateo <oscar.mateo@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/20171025200020.16636-4-michal.winiarski@intel.com
2017-10-16drm/i915/guc: Small fixups post code moveMichal Wajdeczko
Existing code needs some style fixes. To avoid polluting pure move patch, do it now as separate step. 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> 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/20171016144724.17244-4-michal.wajdeczko@intel.com
2017-10-16drm/i915/guc: Move GuC boot param initialization out of xferMichal Wajdeczko
We want to keep ucode xfer functions separate from other initialization. Once separated, add explicit forcewake. v2: use BLITTER domain only and add comment (Daniele) 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: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> #1 Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171016144724.17244-3-michal.wajdeczko@intel.com
2017-10-16drm/i915: Move intel_guc_wopcm_size to intel_guc.cMichal Wajdeczko
Function intel_guc_wopcm_size didn't fit well in the old place. With this move upcoming cleanup will be simpler. 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: 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/20171016144724.17244-2-michal.wajdeczko@intel.com
2017-10-11drm/i915: Rename intel_enable_rc6 to intel_rc6_enabledSagar Arun Kamble
This function gives the status of RC6, whether disabled or if enabled then which state. intel_enable_rc6 will be used for enabling RC6 in the next patch. v2: Rebase. v3: Rebase. Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Imre Deak <imre.deak@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com> #1 Reviewed-by: Ewelina Musial <ewelina.musial@intel.com> #1 Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/1507360055-19948-10-git-send-email-sagar.a.kamble@intel.com Acked-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20171010213010.7415-9-chris@chris-wilson.co.uk
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
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