- 27 Sep, 2018 8 commits
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Jani Nikula authored
Move max firmware size to the same if ladder with firmware name and required version. This allows us to detect the missing max size for a platform without actually loading the firmware, and makes the whole thing easier to maintain. We need to move the power get earlier to allow for early return in the missing platform case. While at it, extend the comment on why we return with the reference held on errors. We also need to move the module parameter override later to reuse the max firmware size, which is independent of the override. v2: Add comment on why we leak the wakeref on errors (Chris) v3: Rebase Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180926133414.22073-2-jani.nikula@intel.com
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Jani Nikula authored
Having two separate if ladders gets increasingly hard to maintain. Put them together. v2: Rebase Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180926133414.22073-1-jani.nikula@intel.com
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José Roberto de Souza authored
A few line above we have another definition of intel_update_rawclk() keeping that one as the function is implemented in intel_cdclk.c. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180918204714.27306-6-jose.souza@intel.com
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José Roberto de Souza authored
symmetric_memory do not change after initialization so lets just set ipc_enabled once for this WA. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180918204714.27306-5-jose.souza@intel.com
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José Roberto de Souza authored
SKL has IPC but it should not be set according to the WA, so lets just mark as it don't have it to simply the code and avoid unnecessary MMIO writes at every call to intel_enable_ipc(). Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180918204714.27306-4-jose.souza@intel.com
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José Roberto de Souza authored
IPC was only added in SKL+(actually we don't even enable for SKL due WA) so without this change, driver was writing to a reserved bit. Also removing the uncessary dev_priv->ipc_enabled = false; as now gens without IPC will not have IPC enabled. v2(Rodrigo): - moved the new handling of WA #0477 to the next patch Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180918204714.27306-3-jose.souza@intel.com
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José Roberto de Souza authored
Right now RESET_PCH_HANDSHAKE_ENABLE is enabled all the times inside of intel_power_domains_init_hw() and if PCH is NOP it is unsed in i915_gem_init_hw(). So making skl_pch_reset_handshake() handle both cases and calling it for the missing gens in intel_power_domains_init_hw(). Ivybridge have a different register and bits but with the same objective so moving it too. v2(Rodrigo): - handling IVYBRIDGE case inside intel_pch_reset_handshake() v4(Rodrigo and Ville): - moving the enable/disable decision to callers Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180918204714.27306-2-jose.souza@intel.com
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José Roberto de Souza authored
Instead of have the same code spread into 4 platforms lets share it. BXT do not have a PCH so here also handling this case by unseting RESET_PCH_HANDSHAKE_ENABLE. v2(Rodrigo): - renamed to intel_pch_reset_handshake() - added comment about why BXT need the bit to be unset v3(Rodrigo and Ville): - added bool have_pch to intel_pch_reset_handshake() - added back BXT comment Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180918204714.27306-1-jose.souza@intel.com
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- 26 Sep, 2018 5 commits
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Madhav Chauhan authored
This patch defines DSI_TA_TIMING_PARAM and DPHY_TA_TIMING_PARAM registers used in dphy programming. v2: Changes (Jani N) - Define mask/shift for bitfields - Use bitfields name as per BSPEC - Define remaining bitfields Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-8-git-send-email-madhav.chauhan@intel.com
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Madhav Chauhan authored
This patch defines DSI_CLK_TIMING_PARAM, DPHY_CLK_TIMING_PARAM, DSI_DATA_TIMING_PARAM, DPHY_DATA_TIMING_PARAM register used in dphy programming. v2: Define mask/shift for bitfields and keep names as per BSPEC (Jani N) Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-6-git-send-email-madhav.chauhan@intel.com
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Chris Wilson authored
/kisskb/src/drivers/gpu/drm/i915/i915_irq.c: warning: 'gu_misc_iir' may be used uninitialized in this function [-Wuninitialized]: => 3120:10 Silence the compiler warning by ensuring that the local variable is initialised and removing the guard that is confusing the older gcc. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Fixes: df0d28c1 ("drm/i915/icl: GSE interrupt moves from DE_MISC to GU_MISC") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180926104718.17462-1-chris@chris-wilson.co.uk
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Chris Wilson authored
In commit 9144d75e ("include/linux/bitops.h: introduce BITS_PER_TYPE"), we made BITS_PER_TYPE available to all and now we can use the macro to replace some open-coded computation of sizeof(T) * BITS_PER_BYTE. Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180926104707.17410-1-chris@chris-wilson.co.uk
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Jani Nikula authored
Catch up in general, and get DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT specifically. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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- 25 Sep, 2018 5 commits
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Ville Syrjälä authored
commit 4e0b83a5 ("drm/i915: Extract per-platform plane->check() functions") removed the plane max stride check for sprite planes. I was going to add it back when introducing GTT remapping for the display, but after further thought it seems better to re-introduce it separately. So let's add the max stride check back. And let's do it in a nicer form than what we had before and do it for all plane types (easy now that we have the ->max_stride() plane vfunc). Only sprite planes really need this for now since primary planes are capable of scanning out the current max fb size we allow, and cursors have more stringent stride checks elsewhere. Cc: José Roberto de Souza <jose.souza@intel.com> Fixes: 4e0b83a5 ("drm/i915: Extract per-platform plane->check() functions") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180918140243.12207-1-ville.syrjala@linux.intel.comReviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
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Juha-Pekka Heikkila authored
From gen11 onwards RGB565 90/270 plane rotation is supported on hardware. IGT: https://patchwork.freedesktop.org/series/48756/Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> [mlankhorst: Rebase on top of current dinq (self), fix grammar (Ville).] Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1535373473-3594-3-git-send-email-juhapekka.heikkila@gmail.com
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Chris Wilson authored
Our execlist dispatch code requires a ppGTT so make sure we enforce that option in intel_sanitize_enable_ppgtt(). The comment already tries to explain that execlists requires ppgtt, but was written when gen8 may have also taken the legacy path; so rewrite the code to match the comment by using HAS_EXECLISTS() feature instead of the gen. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180922141804.21183-1-chris@chris-wilson.co.uk
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Mahesh Kumar authored
This cleanup patch makes changes to use for_each_pipe loop during bit-mask assignment of allowed crtc with encoder. changes: - use BIT(i) macro instead of (1 << i) (Chris) changes from V2: - use int for consistency (Jani) changes from V3: - instead use enum pipe (Ville) changes from V4: - drop DP/HDMI changes, as already part of patch from ville Cc: Jani Nikula <jani.nikula@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180919083126.31805-1-mahesh1.kumar@intel.com
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Chris Wilson authored
In the sequence <0>[ 531.960431] drv_self-4806 7.... 527402570us : intel_gpu_reset: engine_mask=1, ret=0, retry=0 <0>[ 531.960431] drv_self-4806 7.... 527402571us : execlists_reset: rcs0 request global=115de, current=71133 <0>[ 531.960431] drv_self-4806 7d..1 527402571us : execlists_cancel_port_requests: rcs0:port0 global=71134 (fence 826b:198), (current 71133) <0>[ 531.960431] drv_self-4806 7d..1 527402572us : execlists_cancel_port_requests: rcs0:port1 global=71135 (fence 826c:53), (current 71133) <0>[ 531.960431] drv_self-4806 7d..1 527402572us : __i915_request_unsubmit: rcs0 fence 826c:53 <- global=71135, current 71133 <0>[ 531.960431] drv_self-4806 7d..1 527402579us : __i915_request_unsubmit: rcs0 fence 826b:198 <- global=71134, current 71133 <0>[ 531.960431] drv_self-4806 7.... 527402613us : intel_engine_cancel_stop_cs: rcs0 <0>[ 531.960431] drv_self-4806 7.... 527402624us : execlists_reset_finish: rcs0 we are missing the execlists_submission_tasklet() invocation before the execlists_reset_fini() implying that either the queue is empty, or we failed to schedule and run the tasklet on finish. Add an assert so we are sure that on unsubmitting the incomplete request after reset, the queue is indeed populated. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180919195544.1511-12-chris@chris-wilson.co.uk
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- 24 Sep, 2018 4 commits
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Madhav Chauhan authored
This patch programs the time (in escape clocks) to drive the link in the initialization (i.e. LP-11) state. v2: Rebase v3: Remove step hard coding comments (Jani N) Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-5-git-send-email-madhav.chauhan@intel.com
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Madhav Chauhan authored
This patch enables DDI buffer by writing to DDI_BUF_CTL register and wait for DDI status to be *not idle* for a port. v2: Rebase v3: Remove step hard coding comments (Jani N) Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-4-git-send-email-madhav.chauhan@intel.com
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Madhav Chauhan authored
This patch setup voltage swing before enabling combo PHY DDI (shared with DSI). Note that DSI voltage swing programming is for high speed data buffers. HW automatically handles the voltage swing for the low power data buffers. v2: Rebase v3: Address various review comments related to VSWING programming (Jani N) Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-3-git-send-email-madhav.chauhan@intel.com
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Madhav Chauhan authored
This patch set the loadgen select and latency optimization for aux and transmit lanes of combo phy transmitters. It will be used for MIPI DSI HS operations. v2: Rebase v3: Add empty line to make code more legible (Ville). Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-2-git-send-email-madhav.chauhan@intel.com
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- 21 Sep, 2018 10 commits
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Maarten Lankhorst authored
We can't make NV12 work any other way. The scaler doesn't handle odd coordinates well, and we will get visual corruption on the screen. Changes since v1: - Put the check in intel_plane_check_src_coordinates. (Ville) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-9-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
This cleans the code up slightly, and will make other changes easier. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-8-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
On skylake we can switch to a high quality scaler mode when only 1 out of 2 scalers are used, but on GLK and later bit 28 has a different meaning. Don't set it, and make clear the distinction between SKL and later PS values. Changes since v1: - Add missing break statement. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> [mlankhorst: Remove extra newline] Link: https://patchwork.freedesktop.org/patch/msgid/20180921144437.20037-1-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
drm_atomic_helper_commit_planes_on_crtc calls begin_commit, then plane_update hooks, then flush_commit. Because we keep our own visibility tracking through plane_state->visible there's no need to rely on the atomic hooks for this. By explicitly writing our own helper, we can update visible planes as needed, which is useful to make NV12 support work as intended. Changes since v1: - Reword commit message. (Matt Roper) - Rename to intel_update_planes_on_crtc(). (Matt) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-6-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
This will only disable planes we actually had marked as visible in crtc_state->visible_planes and cleans up intel_crtc_disable_plane() slightly. This is also useful for when we start enabling NV12 support for gen11, in which we will make the separate Y plane visible, but ignore the Y plane's state. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-5-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
We need to assume the plane has been visible before, even if no CRTC is assigned to the plane. This is because when enabling a nv12 plane on gen11, we will have to enable an extra plane and make it visible by marking it in crtc_state->active_planes for intel_update_planes_on_crtc(). Additionally, clear visible flag in intel_plane_atomic_check, in case we ever hit a bug with visibility. Our code implicitly assumes that plane_state->visible is only true when crtc and fb are set, so we will either null deref in intel_fbc_choose_crtc() or do something bad during the actual commit which cares even more. Changes since v1: - Unconditionally clear crtc_state->active_planes as well. - Reword commit message, since this is now a preparation patch for NV12 Y / UV plane linking. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> [mlankhorst: Clear nv12_planes in the beginning as well, clarify commit message] Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-4-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
While we may not update new_crtc_state, we may clear active_planes if the new cursor update state will disable the cursor, but we fail after. If this is immediately followed by a modeset disable, we may soon not disable the planes correctly when we start depending on active_planes. Changes since v1: - Clarify why we cannot swap crtc_state. (Matt) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-3-maarten.lankhorst@linux.intel.com
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Maarten Lankhorst authored
Use old/new_intel_crtc_state, and get rid of all the conversion casts where they don't add anything. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-2-maarten.lankhorst@linux.intel.com
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Joonas Lahtinen authored
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Joonas Lahtinen authored
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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- 20 Sep, 2018 8 commits
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
This is a new pull for drm-next on top of last weeks with the following changes: - Fixed 64 bit divide - Fixed vram type on vega20 - Misc vega20 fixes - Misc DC fixes - Fix GDS/GWS/OA domain handling Previous changes from last week: amdgpu/kfd: - Picasso (new APU) support - Raven2 (new APU) support - Vega20 enablement - ACP powergating improvements - Add ABGR/XBGR display support - VCN JPEG engine support - Initial xGMI support - Use load balancing for engine scheduling - Lots of new documentation - Rework and clean up i2c and aux handling in DC - Add DP YCbCr 4:2:0 support in DC - Add DMCU firmware loading for Raven (used for ABM and PSR) - New debugfs features in DC - LVDS support in DC - Implement wave kill for gfx/compute (light weight reset for shaders) - Use AGP aperture to avoid gart mappings when possible - GPUVM performance improvements - Bulk moves for more efficient GPUVM LRU handling - Merge amdgpu and amdkfd into one module - Enable gfxoff and stutter mode on Raven - Misc cleanups Scheduler: - Load balancing support - Bug fixes ttm: - Bulk move functionality - Bug fixes radeon: - Misc cleanups Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920150438.12693-1-alexander.deucher@amd.com
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Chris Wilson authored
Fix up the error unwind for logical_ring_init() failing by moving the cleanup into the callers who own the various bits of state during initialisation, so we don't forget to free the state allocated by the caller. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920195948.16448-1-chris@chris-wilson.co.uk
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Chris Wilson authored
Once we have flushed the first request through the system to both load a context and record the default state; tell the GPU to park and idle itself, putting itself immediately (hopefully at least) into a powersaving state, and allowing ourselves to start from known state after setting up all our bookkeeping. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920161343.1117-1-chris@chris-wilson.co.uk
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Chris Wilson authored
As we emit requests or touch HW directly for some of the live tests, the requirement is that we hold the rpm wakeref before doing so. We want a mix of granularity since we will want to test runtime suspend, so try to mark up only the critical sections where we need rpm for the live test. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108002Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920144934.16611-1-chris@chris-wilson.co.uk
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Matthew Auld authored
It really wants dev_priv anyway, also now matches i915_gem_init_stolen. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-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> Link: https://patchwork.freedesktop.org/patch/msgid/20180920142707.19659-2-matthew.auld@intel.com
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Matthew Auld authored
If we copy all the contents of the sg across and not just the page link, we can then also put it to work in fake_get_huge_pages and beyond. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180920142707.19659-1-matthew.auld@intel.com
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Chris Wilson authored
Stolen memory is lost across S4 (hibernate) or S3-RST as it is a portion of ordinary volatile RAM. As we allocate our rings from stolen, this may include the rings used for our preempt context and their breadcrumb instructions. In order to allow preemption following hibernation and loss of stolen memory, we therefore need to repopulate the instructions inside the lost ring upon resume. To handle both module load and resume, we simply defer constructing the ring to first use. Testcase: igt/drv_selftest/live_gem Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michał Winiarski <michal.winiarski@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180919205432.18394-1-chris@chris-wilson.co.uk
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Chris Wilson authored
We need to exercise the HW and submission paths for switching contexts rapidly to check that features such as execlists' wa_tail are adequate. Plus it's an interesting baseline latency metric. v2: Check the initial request for allocation errors v3: Use finite waits for more robust handling of broken code Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180920105809.1872-1-chris@chris-wilson.co.uk
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