- 28 Jan, 2015 2 commits
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Chris Wilson authored
When run as a timer, i915_hangcheck_elapsed() must adhere to all the rules of running in a softirq context. This is advantageous to us as we want to minimise the risk that a driver bug will prevent us from detecting a hung GPU. However, that is irrelevant if the driver bug prevents us from resetting and recovering. Still it is prudent not to rely on mutexes inside the checker, but given the coarseness of dev->struct_mutex doing so is extremely hard. Give in and run from a work queue, i.e. outside of softirq. v2: Use own workqueue to avoid deadlocks (Daniel) Cleanup commit msg and add comment to i915_queue_hangcheck() (Chris) Cc: Jani Nikula <jani.nikula@intel.com> Cc: Daniel Vetter <dnaiel.vetter@ffwll.chm> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (v1) Signed-off-by:Mika Kuoppala <mika.kuoppala@intel.com> [danvet: Remove accidental kerneldoc comment starter, to appease the 0 day builder.] Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Chris Wilson authored
An interesting bug occurs on Pineview through which the root cause is that the writes of the PTE values into the GTT is not serialised with subsequent memory access through the GTT (when using WC updates of the PTE values). This is despite there being a posting read after the GTT update. However, by changing the address of the posting read, the memory access is indeed serialised correctly. Whilst we are manipulating the memory barriers, we can remove the compiler :memory restraint on the intermediate PTE writes knowing that we explicitly perform a posting read afterwards. v2: Replace posting reads with explicit write memory barriers - in particular this is advantages in case of single page objects. Update comments to mention this issue is only with WC writes. Testcase: igt/gem_exec_big #pnv Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88191 Tested-by: huax.lu@intel.com (v1) Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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- 27 Jan, 2015 38 commits
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Kumar Amit Mehta authored
The comment for intel_cpu_fifo_underrun_irq_handler() is not consistent with the code and the rest of the comment for this routine. This patch fixes this typo in comment. Signed-off-by:
Kumar Amit Mehta <gmate.amit@gmail.com> Reviewed-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
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Matt Roper authored
We don't have full atomic modeset support yet, but the "nuclear pageflip" subset of functionality (i.e., plane operations only) should be ready. Allow the user to force atomic on for debug purposes, or for fixed-purpose embedded devices that will only use atomic for plane updates. The term 'nuclear' is used here instead of 'atomic' to make it clear that this doesn't allow full atomic modeset support, just a (very useful) subset of the atomic functionality. We'll drop the kernel parameter and unconditionally enable atomic in a future patch once all of the necessary pieces are in. v2: - Use module_param_named_unsafe() (Daniel) - Simplify comment on DRIVER_ATOMIC guard (Daniel) v3: - Make the parameter "nuclear_pageflip" rather than just "nuclear" for clarity. (Ander) v4: - Make the internal variable "nuclear_pageflip" as well as the command-line option. (Ander) Signed-off-by:
Matt Roper <matthew.d.roper@intel.com> Reviewed-by:
Ander Conselvan de Oliveira <conselvan2@gmail.com> Signed-off-by:
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Matt Roper authored
This will exercise our atomic pipeline for legacy property updates. Signed-off-by:
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Matt Roper authored
The atomic helpers need these to prepare a new state object when starting a new atomic operation. Signed-off-by:
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Matt Roper authored
Even though we only support atomic plane updates at the moment, we still need to add an .atomic_get_property() entrypoint for connectors before we allow the driver to flip on the DRIVER_ATOMIC bit. As soon as that bit gets set, the DRM core will start adding atomic connector properties (in addition to the plane properties we care about at the moment), so we need to be able to handle the new way the DRM core will interact with us. For simplicity, we just lookup driver-specific connector properties in the usual shadow array maintained by the core. Once we get real atomic modeset support for crtc's and planes, this code should be re-written to pull the data out of crtc/connector state structures. v2: Fix intel_dvo and intel_dsi that I missed on the first pass (Ander) Signed-off-by:
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Matt Roper authored
We want to enable/test plane updates via the atomic interface, but as soon as we flip DRIVER_ATOMIC on, the DRM core will take some atomic codepaths to lookup properties during drmModeGetConnector() and some of those codepaths unconditionally dereference connector->state (specifically when looking up the CRTC ID property in drm_atomic_connector_get_property()). Create a dummy connector state for each connector at init time to ensure the DRM core doesn't try to dereference a NULL connector->state. The actual connector properties will never be updated or contain useful information, but since we're doing this specifically for testing/debug of the plane operations (and only when a specific kernel module option is given), that shouldn't really matter. Once we start creating connector states, the DRM core will want to be able to clean them up for us. We also need to hook up the destruction entrypoint to the core's helper. v2: Squash in the patch to set the state destruction hook (Ander & Bob) v3: Only create dummy connector states when we're actually faking atomic support. (Ander) Signed-off-by: -
Matt Roper authored
Add the top-level atomic entrypoints for check/commit. These won't get called yet; we still need to either enable the atomic ioctl or switch to using the non-transitional atomic helpers for legacy operations. v2: - Use plane->pipe rather than plane->possible_crtcs while ensuring that only a single CRTC is in use. Either way will work fine since i915 drm_plane's are always tied to a single CRTC, but plane->pipe is slightly more intuitive. (Ander) - Simplify crtc/connector checking logic. (Ander) Signed-off-by:
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Matt Roper authored
When we flip on the DRIVER_ATOMIC bit, the DRM core will start calling this entrypoint to set and lookup driver-specific plane property values, rather than maintaining a shadow copy in object->properties. Note that although we add these functions to the plane vtable, they will not yet be called. Future patches that switch our .set_property() handler and/or enable full atomic functionality are required before these code paths will be executed. Signed-off-by:
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Matt Roper authored
All of the previous refactoring/consolidation of plane code has resulted in intel_primary_plane_funcs, intel_cursor_plane_funcs, and intel_sprite_plane_funcs being identical. Replace all of these with a single 'intel_plane_funcs' vtable for simplicity. Signed-off-by:
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Matt Roper authored
Runtime state that can be manipulated via properties should now go in intel_plane_state/drm_plane_state so that it can be tracked as part of an atomic transaction. We add a new 'intel_create_plane_state' function so that the proper initial value for this property (and future properties) doesn't have to be repeated at each plane initialization site. v2: - Stick rotation in common drm_plane_state rather than intel_plane_state. (Daniel) - Add intel_create_plane_state() to consolidate the places where we have to set initial state values. (Ander) Signed-off-by:
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Ville Syrjälä authored
Replace all the vlv_gpu_freq(), vlv_freq_opcode(), *GT_FREQUENCY_MULTIPLIER, and /GT_FREQUENCY_MULTIPLIER instances with intel_gpu_freq() and intel_freq_opcode() calls. Most of the change was performed with the following semantic patch: @@ expression E; @@ ( - E * GT_FREQUENCY_MULTIPLIER + intel_gpu_freq(dev_priv, E) | - E *= GT_FREQUENCY_MULTIPLIER + E = intel_gpu_freq(dev_priv, E) | - E /= GT_FREQUENCY_MULTIPLIER + E = intel_freq_opcode(dev_priv, E) | - do_div(E, GT_FREQUENCY_MULTIPLIER) + E = intel_freq_opcode(dev_priv, E) ) @@ expression E1, E2; @@ ( - vlv_gpu_freq(E1, E2) + intel_gpu_freq(E1, E2) | - vlv_freq_opcode(E1, E2) + intel_freq_opcode(E1, E2) ) @@ expression E1, E2, E3, E4; @@ ( - if (IS_VALLEYVIEW(E1)) { - E2 = intel_gpu_freq(E3, E4); - } else { - E2 = intel_gpu_freq(E3, E4); - } + E2 = intel_gpu_freq(E3, E4); | - if (IS_VALLEYVIEW(E1)) { - E2 = intel_freq_opcode(E3, E4); - } else { - E2 = intel_freq_opcode(E3, E4); - } + E2 = intel_freq_opcode(E3, E4); ) One hunk was manually undone as intel_gpu_freq() ended up calling itself. Supposedly it would be possible to exclude certain functions via !=~, but I couldn't get that to work. Also the removal of vlv_gpu_freq() and vlv_opcode_freq() compat wrappers was done manually. Signed-off-by:Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Ville Syrjälä authored
Rename the vlv_gpu_freq() and vlv_freq_opecode() functions to have an intel_ prefix, and handle non-VLV/CHV platforms in them as well. Leave the vlv_ names around for now since they're currently used. Signed-off-by:
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Ville Syrjälä authored
Currently the 'gt_cur_freq_mhz' file shows the actual GPU frequency on VLV/CHV, and the last requested frequency on other platforms. Change the meaning of the file on VLV/CHV to follow the the other platforms, and introduce a new file 'gt_act_freq_mhz' which shows the actual frequency on all platforms. Signed-off-by:
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Ville Syrjälä authored
Currently we don't call valleyview_set_rps() when changing the min/max limits through sysfs if the current frequency is still within the new limits. However that means we sometimes forget to update PMINTRMSK. Eg. if the current frequency is at the old minimum, and then we reduce the minum further we should then enable the 'down' interrupts in PMINTRMSK but currently we don't. Fix it up by always calling valleyview_set_rps() (just like we do for !vlv/chv platforms). This also allows the code to be simplified a bit. Signed-off-by:
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Vandana Kannan authored
Calls have been added to invalidate/flush DRRS whenever invalidate/flush is called as part of frontbuffer tracking. Apart from calls as a result of GEM tracking to fb invalidate/flush, a call has been added to invalidate fb obj from crtc_page_flip as well. This is to track busyness through flip calls. The call to fb_obj_invalidate (in flip) is placed before queuing flip for this obj. drrs_invalidate() and drrs_flush() check for drrs.dp which would be NULL if it was setup in drrs_enable(). This covers for the condition when DRRS is not supported. v2: Removing the call to invalidate_drrs from page_flip. This has not been tested on Android yet, but, in case DRRS transtions do not work as expected, check by adding back this call in page_flip. Signed-off-by:
Vandana Kannan <vandana.kannan@intel.com> Reviewed-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
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Vandana Kannan authored
Calling enable/disable DRRS when enable/disable DDI are called. These functions are responsible for setup of drrs data (in enable) and reset of drrs (in disable). has_drrs is true when downclock_mode is found and SEAMLESS_DRRS is set in the VBT. A check has been added for has_drrs in these functions, to make sure the functions go through only if DRRS will work on the platform with the attached panel. V2: [By Ram]: WARN_ON is used when intel_edp_drrs_enable() is called more than once [Rodrigo] Signed-off-by:
Ramalingam C <ramalingam.c@intel.com> Reviewed-by:
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Vandana Kannan authored
Add DRRS work function to trigger a switch to low refresh rate, when no activity is detected on screen till 1 sec duration. v2: [By Ram]: drrs.dp also protected with drrs.mutex and worker function is renamed to intel_edp_drrs_downclock_work [Chris] Signed-off-by:
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Daniel Vetter authored
Self-explanatory code is better code. Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Reviewed-by:
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Jani Nikula authored
Const is good for you. No functional changes. Signed-off-by:
Shobhit Kumar <shobhit.kumar@intel.com> Signed-off-by:
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Jani Nikula authored
Remove all the trivial and/or dummy callbacks from intel dsi device ops. Merge send_otp_cmds into panel_reset as they're called back to back. This will be helpful for switching to use drm_panel for the callbacks. If we ever need the additional callbacks, we should add them to drm_panel funcs. Signed-off-by:
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Jani Nikula authored
Add port parameter to wait_for_dsi_fifo_empty, and call it for each dsi port. We can now remove the transitional intel_dsi_pipe_to_port() function. Signed-off-by:
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Jani Nikula authored
wait_for_dsi_fifo_empty can be static in intel_dsi.c. No functional changes. Signed-off-by:
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Jani Nikula authored
This seems like the right thing to do. This also gets rid of a call to intel_dsi_pipe_to_port() which we want to remove eventually. v2: add braces to fix else logic (Shobhit) Signed-off-by:
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Jani Nikula authored
Instead of having the for each dsi port loop within dpi_send_cmd(), add a port parameter to the function and call it for each port instead. This is a rewrite of commit 4510cd77 Author: Gaurav K Singh <gaurav.k.singh@intel.com> Date: Thu Dec 4 10:58:51 2014 +0530 drm/i915: Dual link needs Shutdown and Turn on packet for both ports to add more flexibility in using dpi_send_cmd() for just one port as necessary. No functional changes. Signed-off-by:
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Ville Syrjälä authored
We set the WIZ hashing mode to 16x4 for all the other gen6+ platfotrms, so let's follow suit on VLV. My VLV is AWOL currently so I didn't test this, but since the results for all the other platforms agree that 16x4 is the fastest we might assume the same holds for VLV. Signed-off-by:
Arun Siluvery <arun.siluvery@linux.intel.com> Signed-off-by:
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Ville Syrjälä authored
I ran a few tests with xonotic and synmark2 trying out the different WIZ hashing modes on CHV. The results seem to match the results I got with IVB/HSW when I did the similar tests on them in the past. That is 16x4 is generally the fastest mode, 8x8 comes next and finally 8x4. On CHV the difference between the modes is at most ~1% in most tests. IIRC on IVB/HSW the difference was a little bigger, but as there doesn't seem to be any real downside to 16x4 let's use it by default. Signed-off-by:
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Ville Syrjälä authored
Drop WaDisablePwrmtrEvent:chv as it's no longer needed. Also remove the WaSetMaskForGfxBusyness:chv note, but we still leave the GEN6_RP_MEDIA_IS_GFX bit enabled as that's still the recommended setting. Signed-off-by:
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Ville Syrjälä authored
Wa4x4STCOptimizationDisable got only implemented for BDW, but according to the w/a database CHV needs it too, so add it. Signed-off-by:
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Daniel Vetter authored
We can push down the decision whether to force flushing into the implementation since in all places that matter obj->pin_display is accurate already. The only place where the optimization really matters is the sw_finish_ioctl, and that already checks for obj->pin_display on its own. I suspect that this was simply an artifact of how commit 2c22569b Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Aug 9 12:26:45 2013 +0100 drm/i915: Update rules for writing through the LLC with the cpu evolved - only v2 added the pin_display tracking. Note that we still retain the gist of this logic from the above commit with the explicit force argument for the low-level clflush function. Ville noted in his review that there's a slight behavioural change in the set_to_gtt_domain function, which now also will flush display plane data. This opens-open the potential for userspace to start doing buggy things by omitting the sw_finish_ioctl, which is why I've rejected a functional equivalent patch from Ville a while ago: http://lists.freedesktop.org/archives/intel-gfx/2013-November/036421.html But on second consideration it's not that evil, and in any case the justification here is more clarity, not allowing crazy userspace. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Damien Lespiau authored
Suggested-by:
Damien Lespiau <damien.lespiau@intel.com> Signed-off-by:
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Damien Lespiau authored
Smatch doesn't like: struct drm_framebuffer *fb; fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL); and warns with: warn: struct type mismatch 'drm_framebuffer vs intel_framebuffer' This implicit cast was correct as struct intel_framebuffer has struct drm_framebuffer as its first member, but in case someone want to reorder the fields for some reason, it's slightly safer to access the underlying drm_framebuffer through intel_fb->base. Also, having fewer static analysis warnings is a worthy goal. Cc: kbuild@01.org Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Chris Wilson authored
Currently we are hitting the WARN inside i915_gem_object_set_cache_level() as we can now have an unbound object in the GTT write domain (due to 43566ded "drm/i915: Broaden application of set-domain(GTT)"). To avoid the warning, we need to track when we elided the clflush on a cacheable object and then evict the cache for the object when we move the object out of a cacheable domain. Reported-by:
Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by:
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Mika Kuoppala authored
We increase it when we pin, so for the casual reader rename it to cause less confusion. Signed-off-by:
Thomas Daniel <thomas.daniel@intel.com> Signed-off-by:
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Mika Kuoppala authored
We pin when we submit to execlist queue. Balance the pinning when the submitted queue is cleaned on reset. Cc: Dave Gordon <david.s.gordon@intel.com> Signed-off-by:
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Zhipeng Gong authored
This will let userland only try to use the new ring when the appropriate kernel is present v2: change the number to be consistent with upstream (Zhipeng) Signed-off-by:
Zhipeng Gong <zhipeng.gong@intel.com> Reviewed--by:
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Zhipeng Gong authored
On Skylake GT3 we have 2 Video Command Streamers (VCS), which is asymmetrical. For example, HEVC GPU commands can be only dispatched to VCS1 ring. But userspace has no control when using VCS1 or VCS2. This patch introduces a mechanism to avoid the default ping-pong mode and use one specific ring through execution flag. This mechanism is usable for all the platforms with 2 VCS rings. The open source usage is from these two commits in vaapi/intel: commit 702050f04131a44ef8ac16651708ce8a8d98e4b8 Author: Zhao, Yakui <yakui.zhao@intel.com> Date: Mon Nov 17 12:44:19 2014 +0800 Allow the batchbuffer to be submitted with override flag commit a56efcdf27d11ad9b21664b4a2cda72d7f90f5a8 Author: Zhao Yakui <yakui.zhao@intel.com> Date: Mon Nov 17 12:44:22 2014 +0800 Add the override flag to assure that HEVC video command always uses BSD ring0 for SKL GT3 machine v2: fix whitespace (Rodrigo) v3: remove incorrect chunk that came on -collector rebase. (Rodrigo) v4: change the comment (Zhipeng) v5: address Daniel's comment (Zhipeng) Signed-off-by:
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Damien Lespiau authored
This vfunc and related structure are only used for fast boot, so let's rename them to not take them as general purpose ones. v2: Fix conflicts caused by the introduction of struct intel_crtc_state Reviewed-By: Tvrtko Ursulin <tvrtko.ursulin@intel.com> (v1) Suggested-by:
Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
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Damien Lespiau authored
Universal planes have changed a bit the register organization. v2: Rebase on top of the latest drm-intel-nightly v3: Use PLANE_SIZE to retrieve the fb size (Tvrtko) Don't use BUG() (Tvrtko) v4: Use MISSING_CASE (Daniel) Reviewed-By:Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by:
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