summaryrefslogtreecommitdiff
path: root/drivers/gpu
AgeCommit message (Collapse)Author
2022-12-08drm/vc4: tests: Add unit test suite for the PV muxingMaxime Ripard
The HVS to PixelValve muxing code is fairly error prone and has a bunch of arbitrary constraints due to the hardware setup. Let's create a test suite that makes sure that the possible combinations work and the invalid ones don't. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-19-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/vc4: tests: Fail the current test if we access a registerMaxime Ripard
Accessing a register when running under kunit is a bad idea since our device is completely mocked. Fail the current test if we ever access any of our hardware registers. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-18-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/vc4: tests: Introduce a mocking infrastructureMaxime Ripard
In order to test the current atomic_check hooks we need to have a DRM device that has roughly the same capabilities and layout that the actual hardware. We'll also need a bunch of functions to create arbitrary atomic states. Let's create some helpers to create a device that behaves like the real one, and some helpers to maintain the atomic state we want to check. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-17-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/vc4: hvs: Provide a function to initialize the HVS structureMaxime Ripard
We'll need to initialize the HVS structure without a backing device to create a mock we'll use for testing. Split the structure initialization part into a separate function. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-16-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/vc4: crtc: Make encoder lookup helper publicMaxime Ripard
We'll need a function that looks up an encoder by its vc4_encoder_type. Such a function is already present in the CRTC code, so let's make it public so that we can reuse it in the unit tests. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-15-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/vc4: crtc: Introduce a lower-level crtc init helperMaxime Ripard
The current vc4_crtc_init() helper assumes that we will be using hardware planes and calls vc4_plane_init(). While it's a reasonable assumption, we'll want to mock the plane and thus provide our own. Let's create a helper that will take the plane as an argument. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-14-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/vc4: Move HVS state to main headerMaxime Ripard
In order to introduce unit tests for the HVS state computation, we'll need access to the vc4_hvs_state struct definition and its associated helpers. Let's move them in our driver header. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-13-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: Add a test for DRM managed actionsMaxime Ripard
DRM-managed actions are supposed to be ran whenever the device is released. Let's introduce a basic unit test to make sure it happens. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-12-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Allow to pass a custom drm_driverMaxime Ripard
Some tests will need to provide their own drm_driver instead of relying on the dumb one in the helpers, so let's create a helper that allows to do so. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-11-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Allow for a custom device struct to be allocatedMaxime Ripard
The current helper to allocate a DRM device doesn't allow for any subclassing by drivers, which is going to be troublesome as we work on getting some kunit testing on atomic modesetting code. Let's use a similar pattern to the other allocation helpers by providing the structure size and offset as arguments. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-10-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Make sure the device is boundMaxime Ripard
The device managed resources are freed when the device is detached, so it has to be bound in the first place. Let's create a fake driver that we will bind to our fake device to benefit from the device managed cleanups in our tests. Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-9-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Switch to a platform_deviceMaxime Ripard
The device managed resources are ran if the device has bus, which is not the case of a root_device. Let's use a platform_device instead. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-8-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Create the device in another functionMaxime Ripard
We'll need in some tests to control when the device needs to be added and removed, so let's split the device creation from the DRM device creation function. Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-7-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Remove the name parameterMaxime Ripard
The device name isn't really useful, we can just define it instead of exposing it in the API. Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-6-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Rename the device init helperMaxime Ripard
The name doesn't really fit the conventions for the other helpers in DRM/KMS, so let's rename it to make it obvious that we allocate a new DRM device. Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-5-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Switch to EXPORT_SYMBOL_GPLMaxime Ripard
drm_kunit_device_init() among other things will allocate a device and wrap around root_device_register. This function is exported with EXPORT_SYMBOL_GPL, so we can't really change the license. Fixes: a77a3ffa151b ("drm/tests: helpers: Add missing export") Suggested-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-4-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Document drm_kunit_device_init()Maxime Ripard
Commit 44a3928324e9 ("drm/tests: Add Kunit Helpers") introduced the drm_kunit_device_init() function but didn't document it properly. Add that documentation. Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-3-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: Introduce a config option for the KUnit helpersMaxime Ripard
Driver-specific tests will need access to the helpers without pulling every DRM framework test. Let's create an intermediate Kconfig options for the helpers. Suggested-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Maíra Canal <mcanal@igalia.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-2-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-08drm/tests: helpers: Move the helper header to include/drmMaxime Ripard
We'll need to use those helpers from drivers too, so let's move it to a more visible location. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-1-4615a663a84a@cerno.tech Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-12-07drm/i915/perf: Do not parse context image for HSWUmesh Nerlige Ramappa
An earlier commit introduced a mechanism to parse the context image to find the OA context control offset. This resulted in an NPD on haswell when gem_context was passed into i915_perf_open_ioctl params. Haswell does not support logical ring contexts, so ensure that the context image is parsed only for platforms with logical ring contexts and also validate lrc_reg_state. v2: Fix build failure v3: Fix checkpatch error Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7432 Fixes: a5c3a3cbf029 ("drm/i915/perf: Determine gen12 oa ctx offset at runtime") Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221123235342.713068-1-umesh.nerlige.ramappa@intel.com
2022-12-07drm/i915/backlight: convert DRM_DEBUG_KMS() to drm_dbg_kms()Jani Nikula
Fix the final straggler. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/4769f8377be11536bd19840a2e59ef9f8c0a558c.1670405587.git.jani.nikula@intel.com
2022-12-07drm/i915/backlight: drop drm_device local variables in favor of i915Jani Nikula
Prefer only having struct drm_i915_private *i915 around. Drop the drm_device *dev locals. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/6a791b06ab84bb8fb719cd46934eb09644e3edc7.1670405587.git.jani.nikula@intel.com
2022-12-07drm/i915/backlight: mass rename dev_priv to i915Jani Nikula
With the implicit dev_priv usage gone, we can rename dev_priv to i915 throughout. Do some drive-by whitespace cleanups while at it. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/fc8b260bd8fa338edb312637f18ca7e6550d820d.1670405587.git.jani.nikula@intel.com
2022-12-07drm/i915/backlight: drop DISPLAY_MMIO_BASE() use from backlight registersJani Nikula
None of the remaining backlight registers that use DISPLAY_MMIO_BASE() are used on VLV/CHV, which are the only platforms that have non-zero base. Just drop the DISPLAY_MMIO_BASE() use, reducing the implicit dev_priv references. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/75ae3f2945912f908df2444d4f0ab97a23b89897.1670405587.git.jani.nikula@intel.com
2022-12-07drm/i915/backlight: use VLV_DISPLAY_BASE for VLV/CHV backlight registersJani Nikula
Since the VLV/CHV backlight registers are only used on VLV/CHV, there's no need to dynamically look up DISPLAY_MMIO_BASE(). We know it's VLV_DISPLAY_BASE. Use it statically, reducing the implicit dev_priv references. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/eb252083a56ec64b4fdb58d4d30abcf305a3a9c2.1670405587.git.jani.nikula@intel.com
2022-12-07drm/amd/display: fix array index out of bound error in DCN32 DMLAurabindo Pillai
[Why&How] LinkCapacitySupport array is indexed with the number of voltage states and not the number of max DPPs. Fix the error by changing the array declaration to use the correct (larger) array size of total number of voltage states. Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org # 6.0.x
2022-12-07drm/amdgpu/sdma_v4_0: turn off SDMA ring buffer in the s2idle suspendPrike Liang
In the SDMA s0ix save process requires to turn off SDMA ring buffer for avoiding the SDMA in-flight request, otherwise will suffer from SDMA page fault which causes by page request from in-flight SDMA ring accessing at SDMA restore phase. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2248 Cc: stable@vger.kernel.org # 6.0,5.15+ Fixes: f8f4e2a51834 ("drm/amdgpu: skipping SDMA hw_init and hw_fini for S0ix.") Signed-off-by: Prike Liang <Prike.Liang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Tested-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-07drm/i915: Fix documentation for intel_uncore_forcewake_put__lockedMiaoqian Lin
intel_uncore_forcewake_put__locked() is used to release a reference. Fixes: a6111f7b6604 ("drm/i915: Reduce locking in execlist command submission") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221207112909.2655251-1-linmq006@gmail.com
2022-12-07drm/i915/fbc: drop uncore locking around i8xx/i965 fbc nukeJani Nikula
The locking should not be needed after commits de5bd083d247 ("drm/i915/fbc: Skip nuke when flip is pending") and 7cfd1a18c5f9 ("drm/i915: Remove remaining locks from i9xx plane udpates"). Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221205122918.3092092-1-jani.nikula@intel.com
2022-12-07drm: panel-orientation-quirks: Add quirk for DynaBook K50Allen Ballway
Like the ASUS T100HAN for which there is already a quirk, the DynaBook K50 has a 800x1280 portrait screen mounted in the tablet part of a landscape oriented 2-in-1. Update the quirk to be more generic and apply to this device. Signed-off-by: Allen Ballway <ballway@chromium.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221130170811.1.Iee9a494547541dade9eeee9521cc8b811e76a8a0@changeid
2022-12-07drm: panel-orientation-quirks: Add quirk for Lenovo Yoga Tab 3 X90FHans de Goede
The Lenovo Yoga Tab 3 X90F has a portrait 1600x2560 LCD used in landscape mode, add a quirk for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221127181539.104223-1-hdegoede@redhat.com
2022-12-07drm/i915/gt: remove some limited use register access wrappersJani Nikula
Remove rmw_set(), rmw_clear(), clear_register(), rmw_set_fw(), and rmw_clear_fw(). They're just one too many levels of abstraction for register access, for very specific purposes. clear_register() seems like a micro-optimization bypassing the write when the register is already clear, but that trick has ceased to work since commit 06b975d58fd6 ("drm/i915: make intel_uncore_rmw() write unconditionally"). Just clear the register in the most obvious way. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221123164916.4128733-1-jani.nikula@intel.com
2022-12-07drm/i915/hwmon: Silence "mailbox access failed" warning in snb_pcode_readAshutosh Dixit
hwm_pcode_read_i1 is called during i915 load. This results in the following warning from snb_pcode_read because POWER_SETUP_SUBCOMMAND_READ_I1 is unsupported on DG1/DG2. [drm:snb_pcode_read [i915]] warning: pcode (read from mbox 47c) \ mailbox access failed for snb_pcode_read_p [i915]: -6 The code handles the unsupported command but the warning in dmesg is a red herring which has resulted in a couple of bugs being filed. Therefore silence the warning by avoiding calling snb_pcode_read_p for DG1/DG2. Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com> Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221203031454.1280538-1-ashutosh.dixit@intel.com
2022-12-06drm/gud: Enable synchronous flushing by defaultNoralf Trønnes
gud has a module parameter that controls whether framebuffer flushing happens synchronously during the commit or asynchronously in a worker. GNOME before version 3.38 handled all displays in the same rendering loop. This lead to gud slowing down the refresh rate for a faster monitor. This has now been fixed so lets change the default. The plan is to remove async flushing in the future. The code is now structured in a way that makes it easy to do this. Link: https://blogs.gnome.org/shell-dev/2020/07/02/splitting-up-the-frame-clock/ Suggested-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221122-gud-shadow-plane-v2-6-435037990a83@tronnes.org
2022-12-06drm/gud: Use the shadow plane helperNoralf Trønnes
Use the shadow plane helper to take care of mapping the framebuffer for CPU access. The synchronous flushing is now done inline without the use of a worker. The async path now uses a shadow buffer to hold framebuffer changes and it doesn't read the framebuffer behind userspace's back anymore. v2: - Use src as variable name for iosys_map (Thomas) - Prepare imported buffer for CPU access in the driver (Thomas) Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221122-gud-shadow-plane-v2-5-435037990a83@tronnes.org
2022-12-06drm/gud: Prepare buffer for CPU access in gud_flush_work()Noralf Trønnes
In preparation for moving to the shadow plane helper prepare the framebuffer for CPU access as early as possible. v2: - Use src as variable name for iosys_map (Thomas) Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221122-gud-shadow-plane-v2-4-435037990a83@tronnes.org
2022-12-06drm/gud: Split up gud_flush_work()Noralf Trønnes
In preparation for inlining synchronous flushing split out the part of gud_flush_work() that can be shared by the sync and async code paths. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221122-gud-shadow-plane-v2-3-435037990a83@tronnes.org
2022-12-06drm/gud: Don't retry a failed framebuffer flushNoralf Trønnes
If a framebuffer flush fails the driver will do one retry by requeing the worker. Currently the worker is used even for synchronous flushing, but a later patch will inline it, so this needs to change. Thinking about how to solve this I came to the conclusion that this retry mechanism was a fix for a problem that was only in the mind of the developer (me) and not something that solved a real problem. So let's remove this for now and revisit later should it become necessary. gud_add_damage() has now only one caller so it can be inlined. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221122-gud-shadow-plane-v2-2-435037990a83@tronnes.org
2022-12-06drm/gud: Fix UBSAN warningNoralf Trønnes
UBSAN complains about invalid value for bool: [ 101.165172] [drm] Initialized gud 1.0.0 20200422 for 2-3.2:1.0 on minor 1 [ 101.213360] gud 2-3.2:1.0: [drm] fb1: guddrmfb frame buffer device [ 101.213426] usbcore: registered new interface driver gud [ 101.989431] ================================================================================ [ 101.989441] UBSAN: invalid-load in linux/include/linux/iosys-map.h:253:9 [ 101.989447] load of value 121 is not a valid value for type '_Bool' [ 101.989451] CPU: 1 PID: 455 Comm: kworker/1:6 Not tainted 5.18.0-rc5-gud-5.18-rc5 #3 [ 101.989456] Hardware name: Hewlett-Packard HP EliteBook 820 G1/1991, BIOS L71 Ver. 01.44 04/12/2018 [ 101.989459] Workqueue: events_long gud_flush_work [gud] [ 101.989471] Call Trace: [ 101.989474] <TASK> [ 101.989479] dump_stack_lvl+0x49/0x5f [ 101.989488] dump_stack+0x10/0x12 [ 101.989493] ubsan_epilogue+0x9/0x3b [ 101.989498] __ubsan_handle_load_invalid_value.cold+0x44/0x49 [ 101.989504] dma_buf_vmap.cold+0x38/0x3d [ 101.989511] ? find_busiest_group+0x48/0x300 [ 101.989520] drm_gem_shmem_vmap+0x76/0x1b0 [drm_shmem_helper] [ 101.989528] drm_gem_shmem_object_vmap+0x9/0xb [drm_shmem_helper] [ 101.989535] drm_gem_vmap+0x26/0x60 [drm] [ 101.989594] drm_gem_fb_vmap+0x47/0x150 [drm_kms_helper] [ 101.989630] gud_prep_flush+0xc1/0x710 [gud] [ 101.989639] ? _raw_spin_lock+0x17/0x40 [ 101.989648] gud_flush_work+0x1e0/0x430 [gud] [ 101.989653] ? __switch_to+0x11d/0x470 [ 101.989664] process_one_work+0x21f/0x3f0 [ 101.989673] worker_thread+0x200/0x3e0 [ 101.989679] ? rescuer_thread+0x390/0x390 [ 101.989684] kthread+0xfd/0x130 [ 101.989690] ? kthread_complete_and_exit+0x20/0x20 [ 101.989696] ret_from_fork+0x22/0x30 [ 101.989706] </TASK> [ 101.989708] ================================================================================ The source of this warning is in iosys_map_clear() called from dma_buf_vmap(). It conditionally sets values based on map->is_iomem. The iosys_map variables are allocated uninitialized on the stack leading to ->is_iomem having all kinds of values and not only 0/1. Fix this by zeroing the iosys_map variables. Fixes: 40e1a70b4aed ("drm: Add GUD USB Display driver") Cc: <stable@vger.kernel.org> # v5.18+ Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20221122-gud-shadow-plane-v2-1-435037990a83@tronnes.org
2022-12-06drm/amdgpu: fix mmhub register base coding errorYang Wang
fix MMHUB register base coding error. Fixes: ec6837591f992 ("drm/amdgpu/gmc10: program the smallK fragment size") Signed-off-by: Yang Wang <KevinYang.Wang@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2022-12-06drm/amdgpu: add tmz support for GC IP v11.0.4Tim Huang
Add tmz support for GC 11.0.4. Signed-off-by: Tim Huang <tim.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amdgpu: enable GFX Clock Gating control for GC IP v11.0.4Tim Huang
Enable GFX IP v11.0.4 CG gate/ungate control. Signed-off-by: Tim Huang <tim.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amdgpu: enable GFX Power Gating for GC IP v11.0.4Tim Huang
Enable GFX Power Gating control for GC IP v11.0.4. Signed-off-by: Tim Huang <tim.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amdgpu: enable GFX IP v11.0.4 CG supportTim Huang
Add CG support for GFX/MC/HDP/ATHUB/IH/BIF. Signed-off-by: Tim Huang <tim.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amdgpu: Make amdgpu_ring_mux functions as staticJiadong Zhu
lkp robot reported missing-prototypes and unused-but-set-variable warnings on some functions of amdgpu_mcbp_mux.c. Make them static and remove the unused variable. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Jiadong Zhu <Jiadong.Zhu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amdgpu: generally allow over-commit during BO allocationChristian König
We already fallback to a dummy BO with no backing store when we allocate GDS,GWS and OA resources and to GTT when we allocate VRAM. Drop all those workarounds and generalize this for GTT as well. This fixes ENOMEM issues with runaway applications which try to allocate/free GTT in a loop and are otherwise only limited by the CPU speed. The CS will wait for the cleanup of freed up BOs to satisfy the various domain specific limits and so effectively throttle those buggy applications down to a sane allocation behavior again. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amd/display: fix array index out of bound error in DCN32 DMLAurabindo Pillai
[Why&How] LinkCapacitySupport array is indexed with the number of voltage states and not the number of max DPPs. Fix the error by changing the array declaration to use the correct (larger) array size of total number of voltage states. Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amd/display: 3.2.215Aric Cyr
Acked-by: Stylon Wang <stylon.wang@amd.com> Signed-off-by: Aric Cyr <aric.cyr@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amd/display: set optimized required for comp buf changesDillon Varone
[Description] When compressed buffer allocation changes, optimized required flag should be set to trigger an update in optimize bandwidth. Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Stylon Wang <stylon.wang@amd.com> Signed-off-by: Dillon Varone <Dillon.Varone@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-06drm/amd/display: Add debug option to skip PSR CRTC disableNicholas Kazlauskas
[Why] It's currently tied to Z10 support, and is required for Z10, but we can still support Z10 display off without PSR. We currently need to skip the PSR CRTC disable to prevent stuttering and underflow from occuring during PSR-SU. [How] Add a debug option to allow specifying this separately. Reviewed-by: Robin Chen <robin.chen@amd.com> Acked-by: Stylon Wang <stylon.wang@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>