kernel/linux.git/drivers/gpu/drm/xe/xe_tile.c, branch v6.12.80

drm/xe: Move suballocator init to after display init

2025-05-29T09:03:08+00:00

[ Upstream commit 380b0cdaa76bc8f5c16db16eaf48751e792ff041 ] No allocations should be done before we have had a chance to preserve the display fb. Reviewed-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20241210083111.230484-4-dev@lankhorst.se Signed-off-by: Maarten Lankhorst Signed-off-by: Sasha Levin

drm/xe: Fix xe_tile_init_noalloc() error propagation

2025-05-29T09:02:49+00:00

[ Upstream commit 0bcf41171c64234e79eb3552d00f0aad8a47e8d3 ] Propagate the error to the caller so initialization properly stops if sysfs creation fails. Reviewed-by: Francois Dugast Reviewed-by: Himal Prasad Ghimiray Link: https://patchwork.freedesktop.org/patch/msgid/20250213192909.996148-4-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi Signed-off-by: Sasha Levin

drm/xe/pcode: Treat pcode as per-tile rather than per-GT

2024-09-03T14:36:46+00:00

There's only one instance of the pcode per tile, and for GT-related accesses both the primary and media GT share the same register interface. Since Xe was using per-GT locking, the pcode mutex wasn't actually protecting everything that it should since concurrent accesses related to a tile's primary GT and media GT were possible. Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Signed-off-by: Matt Roper Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20240829220619.789159-5-matthew.d.roper@intel.com (cherry picked from commit 3034cc8107b8d0c7d1b56584394e215dab57f8a3) Signed-off-by: Rodrigo Vivi

drm/xe/tile: Abort driver load for sysfs creation failure

2024-04-18T20:30:17+00:00

Ensure that the status of all tile associated sysfs entries creation is relayed to xe_tile_init_noalloc, leading to a driver load abort if any sysfs creation failures occur. -v2 Avoid unnecessary warn/error messages. (Lucas) Cc: Rodrigo Vivi Cc: Lucas De Marchi Signed-off-by: Himal Prasad Ghimiray Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20240412181211.1155732-7-himal.prasad.ghimiray@intel.com Signed-off-by: Lucas De Marchi

drm/xe: Remove useless mem_access during probe

2024-04-18T12:31:39+00:00

xe_pm_init is the very last thing during the xe_pci_probe(), hence these protections are useless from the point of view of ensuring that the device is awake. Let's remove it so we continue towards the goal of killing xe_device_mem_access. v2: Adding more cases v3: Provide a separate fix for xe_tile_init_noalloc return (Matt) Adding a new case where display HDCP init calls which are also called at display probe time. Cc: Matthew Auld Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/msgid/20240417203952.25503-5-rodrigo.vivi@intel.com Signed-off-by: Rodrigo Vivi

drm/xe: Return immediately on tile_init failure

2024-03-06T21:35:44+00:00

There's no reason to proceed with applying workaround and initing sysfs if we are going to abort the probe upon failure. Fixes: e5a845fd8fa4 ("drm/xe: Add sysfs entry for tile") Cc: Lucas De Marchi Cc: Matt Roper Cc: Matthew Auld Reviewed-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20240306203110.146387-1-rodrigo.vivi@intel.com Signed-off-by: Rodrigo Vivi

drm/xe: Reorder GGTT init to earlier point in probe

2023-12-21T16:45:11+00:00

GuC will need to be loaded earlier during probe. Having functional GGTT is one of the prerequisites. Also rename xe_ggtt_init_noalloc to xe_ggtt_init_early to match the new call site. Signed-off-by: Michał Winiarski Reviewed-by: Matt Roper Signed-off-by: Rodrigo Vivi

drm/xe: Introduce xe_tile_init_early and use at earlier point in probe

2023-12-21T16:45:10+00:00

It also merges the GT (which is part of tile) initialization happening at xe_info_init with allocating other per-tile data structures into a common helper function. Signed-off-by: Michał Winiarski Reviewed-by: Matthew Brost Signed-off-by: Rodrigo Vivi

drm/xe/wa: Apply tile workarounds at probe/resume

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

Although the vast majority of workarounds the driver needs to implement are either GT-based or display-based, there are occasionally workarounds that reside outside those parts of the hardware (i.e., in they target registers in the sgunit/soc); we can consider these to be "tile" workarounds since there will be instance of these registers per tile. The registers in question should only lose their values during a function-level reset, so they only need to be applied during probe and resume; the registers will not be affected by GT/engine resets. Tile workarounds are rare (there's only one, 22010954014, that's relevant to Xe at the moment) so it's probably not worth updating the xe_rtp design to handle tile-level workarounds yet, although we may want to consider that in the future if/when more of these show up on future platforms. Reviewed-by: Lucas De Marchi Acked-by: Jani Nikula Link: https://lore.kernel.org/r/20230913231411.291933-13-matthew.d.roper@intel.com Signed-off-by: Matt Roper Signed-off-by: Rodrigo Vivi

drm/xe: Make usable size of VRAM readable

2023-12-21T16:35:06+00:00

Current size member of vram struct does not give complete information as what "size" contains. Does it contain reserved portions or not. Name it usable size and accordingly describe other size members as well. Reviewed-by: Matthew Brost Reviewed-by: Lucas De Marchi Signed-off-by: Tejas Upadhyay Signed-off-by: Rodrigo Vivi