kernel/linux.git/drivers/gpu/drm/xe/xe_module.c, branch v6.11.8

drm/xe: Support 'nomodeset' kernel command-line option

2024-11-08T15:31:03+00:00

commit 014125c64d09e58e90dde49fbb57d802a13e2559 upstream. Setting 'nomodeset' on the kernel command line disables all graphics drivers with modesetting capabilities, leaving only firmware drivers, such as simpledrm or efifb. Most DRM drivers automatically support 'nomodeset' via DRM's module helper macros. In xe, which uses regular module_init(), manually call drm_firmware_drivers_only() to test for 'nomodeset'. Do not register the driver if set. v2: - use xe's init table (Lucas) - do NULL test for init/exit functions Signed-off-by: Thomas Zimmermann Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20240827121003.97429-1-tzimmermann@suse.de Signed-off-by: Lucas De Marchi Signed-off-by: Greg Kroah-Hartman

drm/xe/uapi: Rename xe perf layer as xe observation layer

2024-07-11T13:54:24+00:00

In Xe, the perf layer allows capture of HW counter streams. These HW counters are generally performance related but don't have to be necessarily so. Also, the name "perf" is a carryover from i915 and is not preferred. Here we propose the name "observation" for this common layer which allows capture of different types of these counter streams. v2: Rename observability layer to observation layer (Lucas/Rodrigo) v3: Rename sysctl file to "observation_paranoid" (Jose) Fixes: 52c2e956dceb ("drm/xe/perf/uapi: "Perf" layer to support multiple perf counter stream types") Fixes: fe8929bdf835 ("drm/xe/perf/uapi: Add perf_stream_paranoid sysctl") Acked-by: Lucas De Marchi Acked-by: Rodrigo Vivi Signed-off-by: Ashutosh Dixit Reviewed-by: Umesh Nerlige Ramappa Acked-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20240703164801.2561423-1-ashutosh.dixit@intel.com (cherry picked from commit 8169b2097d88d99d7e4a72e20e4b549efe9eb8d7) Signed-off-by: Rodrigo Vivi

drm/xe/perf/uapi: Add perf_stream_paranoid sysctl

2024-06-18T19:40:26+00:00

Normally only superuser/root can access perf counter data. However, superuser can set perf_stream_paranoid sysctl to 0 to allow non-privileged users to also access perf data. perf_stream_paranoid is introduced at the perf layer to allow different perf stream types to share this access mechanism. v2: Add kernel doc for non-static functions (Michal) Acked-by: Rodrigo Vivi Acked-by: José Roberto de Souza Reviewed-by: Umesh Nerlige Ramappa Signed-off-by: Ashutosh Dixit Link: https://patchwork.freedesktop.org/patch/msgid/20240618014609.3233427-3-ashutosh.dixit@intel.com

drm/xe: Force wedged state and block GT reset upon any GPU hang

2024-04-24T16:12:58+00:00

In many validation situations when debugging GPU Hangs, it is useful to preserve the GT situation from the moment that the timeout occurred. This patch introduces a module parameter that could be used on situations like this. If xe.wedged module parameter is set to 2, Xe will be declared wedged on every single execution timeout (a.k.a. GPU hang) right after devcoredump snapshot capture and without attempting any kind of GT reset and blocking entirely any kind of execution. v2: Really block gt_reset from guc side. (Lucas) s/wedged/busted (Lucas) v3: - s/busted/wedged - Really use global_flags (Dafna) - More robust timeout handling when wedging it. v4: A really robust clean exit done by Matt Brost. No more kernel warns on unbind. v5: Simplify error message (Lucas) Cc: Matthew Brost Cc: Dafna Hirschfeld Cc: Lucas De Marchi Cc: Alan Previn Cc: Himanshu Somaiya Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20240423221817.1285081-3-rodrigo.vivi@intel.com Signed-off-by: Rodrigo Vivi

drm/xe: Add max_vfs module parameter

2024-04-10T09:26:17+00:00

We want to have an option to limit the number of the VFs that the PF driver will be able to manage. With this limit set to zero we will also have a way to completely disable the PF functionality. Since we currently don't support SR-IOV on any platform, we start with this limit set to zero by default. Signed-off-by: Michal Wajdeczko Reviewed-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20240404154431.583-2-michal.wajdeczko@intel.com

drm/xe/pmu: Remove PMU from Xe till uapi is finalized

2023-12-21T16:46:59+00:00

PMU uapi is likely to change in the future. Till the uapi is finalized, remove PMU from Xe. PMU can be re-added after uapi is finalized. v2: Include xe_drm.h in xe/tests/xe_dma_buf.c (Francois) Signed-off-by: Ashutosh Dixit Acked-by: Aravind Iddamsetty Acked-by: Lucas De Marchi Reviewed-by: Umesh Nerlige Ramappa Acked-by: José Roberto de Souza Acked-by: Mateusz Naklicki Signed-off-by: Rodrigo Vivi

drm/xe/gsc: Define GSC FW for MTL

2023-12-21T16:45:06+00:00

We track GSC FW based on its compatibility version, which is what determines the interface it supports. Also add a modparam override like the ones for GuC and HuC. v2: fix module param description (John) Signed-off-by: Daniele Ceraolo Spurio Cc: Alan Previn Cc: John Harrison Reviewed-by: John Harrison Signed-off-by: Rodrigo Vivi

drm/xe: Encapsulate all the module parameters

2023-12-21T16:45:05+00:00

Encapsulate all the module parameters in one single global struct variable. This also removes the extra xe_module.h from includes. v2: naming consistency as suggested by Jani and Lucas v3: fix checkpatch errors/warnings v4: adding blank line after struct declaration Cc: Jani Nikula Cc: Lucas De Marchi Signed-off-by: Bommithi Sakeena Reviewed-by: Lucas De Marchi Signed-off-by: Rodrigo Vivi

drm/xe/display: Implement display support

2023-12-21T16:43:39+00:00

As for display, the intent is to share the display code with the i915 driver so that there is maximum reuse there. We do this by recompiling i915/display code twice. Now that i915 has been adapted to support the Xe build, we can add the xe/display support. This initial work is a collaboration of many people and unfortunately this squashed patch won't fully honor the proper credits. But let's try to add a few from the squashed patches: Co-developed-by: Matthew Brost Co-developed-by: Jani Nikula Co-developed-by: Lucas De Marchi Co-developed-by: Matt Roper Co-developed-by: Mauro Carvalho Chehab Co-developed-by: Rodrigo Vivi Co-developed-by: Dave Airlie Signed-off-by: Maarten Lankhorst Signed-off-by: Rodrigo Vivi Signed-off-by: Lucas De Marchi

drm/xe/uc: Add GuC/HuC firmware path overrides

2023-12-21T16:41:14+00:00

When testing a new binary and/or debugging binary-related issues, it is useful to have the option to change which binary is loaded without having to update and re-compile the kernel. To support this option, this patch adds 2 new modparams to override the FW path for GuC and HuC. The HuC modparam can also be set to an empty string to disable HuC loading. Note that those modparams only take effect on platforms where we already have a default FW, so we're sure there is support for FW loading and the kernel isn't going to explode in an undefined path. v2: simplify comment (John), rebase on s/guc_submission_enabled/uc_enabled Signed-off-by: Daniele Ceraolo Spurio Cc: John Harrison Cc: Matthew Brost Reviewed-by: John Harrison Signed-off-by: Rodrigo Vivi