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cdc8a1e11f
linux/drivers/gpu/drm
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Matthew Brost cdc8a1e11f
drm/xe: Do not preempt fence signaling CS instructions 
If a batch buffer is complete, it makes little sense to preempt the
fence signaling instructions in the ring, as the largest portion of the
work (the batch buffer) is already done and fence signaling consists of
only a few instructions. If these instructions are preempted, the GuC
would need to perform a context switch just to signal the fence, which
is costly and delays fence signaling. Avoid this scenario by disabling
preemption immediately after the BB start instruction and re-enabling it
after executing the fence signaling instructions.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Carlos Santa <carlos.santa@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patch.msgid.link/20260115004546.58060-1-matthew.brost@intel.com
(cherry picked from commit 2bcbf2dcde)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-02 11:12:28 -05:00
..
adp
amd drm/amd: Disable MES LR compute W/A 2026-02-25 17:58:06 -05:00
arm Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
armada Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
aspeed
ast Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
atmel-hlcdc Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
bridge Merge drm/drm-fixes into drm-misc-fixes 2026-02-23 10:09:45 +01:00
ci mm.git review status for linus..mm-nonmm-stable 2026-02-12 12:13:01 -08:00
clients Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
display Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
etnaviv Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
exynos Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
fsl-dcu Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
gma500 Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
gud Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
hisilicon drm/hisilicon/hibmc: Adding reset colorbar cfg in dp init. 2026-01-20 10:53:14 +02:00
hyperv drm/hyperv: Remove reference to hyperv_fb driver 2026-02-14 11:09:38 +01:00
i915 drm/i915/alpm: ALPM disable fixes 2026-02-23 12:44:06 +02:00
imagination Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
imx Merge drm/drm-fixes into drm-misc-fixes 2026-02-23 10:09:45 +01:00
ingenic Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
kmb Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
lib
lima Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
logicvc drm/logicvc: Fix device node reference leak in logicvc_drm_config_parse() 2026-02-10 15:18:36 +01:00
loongson Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
mcde
mediatek Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
meson drm/meson/dw-hdmi: convert to of_drm_find_and_get_bridge() 2026-01-21 13:59:56 +01:00
mgag200 Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
msm Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
mxsfb Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
nouveau Merge drm/drm-fixes into drm-misc-fixes 2026-02-23 10:09:45 +01:00
nova
omapdrm Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
panel Several fixes for amdxdna around PM handling, error reporting and 2026-02-06 12:52:15 +10:00
panfrost Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
panthor Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
pl111 Linux 6.19-rc7 2026-01-28 12:44:28 +10:00
qxl Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
radeon Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
renesas Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
rockchip Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
scheduler Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
sitronix Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
solomon Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
sprd
sti Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
stm
sun4i Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
sysfb Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tegra Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tests Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tidss Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tilcdc Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tiny Merge drm/drm-fixes into drm-misc-fixes 2026-02-23 10:09:45 +01:00
ttm Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
tve200
tyr Driver core changes for 7.0-rc1 2026-02-11 17:43:59 -08:00
udl Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
v3d Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
vboxvideo Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
vc4 Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
vgem Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
virtio Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
vkms Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
vmwgfx Merge drm/drm-fixes into drm-misc-fixes 2026-02-23 10:09:45 +01:00
xe drm/xe: Do not preempt fence signaling CS instructions 2026-03-02 11:12:28 -05:00
xen Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
xlnx Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_atomic_helper.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
drm_atomic_state_helper.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
drm_atomic_uapi.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_atomic.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
drm_auth.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_blend.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_bridge_helper.c
drm_bridge.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_buddy.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
drm_cache.c
drm_client_event.c
drm_client_modeset.c drm/client: Do not destroy NULL modes 2026-02-25 09:31:54 +02:00
drm_client_sysrq.c
drm_client.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_color_mgmt.c
drm_colorop.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_connector.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_crtc_helper_internal.h
drm_crtc_helper.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
drm_crtc_internal.h
drm_crtc.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
drm_damage_helper.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_debugfs_crc.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_debugfs.c drm/debug: don't register files for unsupported HDMI InfoFrames 2026-01-19 13:11:47 +02:00
drm_displayid_internal.h
drm_displayid.c
drm_draw_internal.h
drm_draw.c
drm_drv.c
drm_dumb_buffers.c
drm_edid_load.c
drm_edid.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_eld.c
drm_encoder.c
drm_exec.c
drm_fb_dma_helper.c
drm_fb_helper.c Linux 6.19-rc7 2026-01-28 12:44:28 +10:00
drm_fbdev_dma.c
drm_fbdev_shmem.c
drm_fbdev_ttm.c
drm_file.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_flip_work.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
drm_format_helper.c
drm_format_internal.h
drm_fourcc.c
drm_framebuffer.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_gem_atomic_helper.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
drm_gem_dma_helper.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_gem_framebuffer_helper.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_gem_shmem_helper.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_gem_ttm_helper.c
drm_gem_vram_helper.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_gem.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_gpusvm.c drm/gpusvm: Fix drm_gpusvm_pages_valid_unlocked() kernel-doc 2026-02-24 09:25:36 -08:00
drm_gpuvm.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_internal.h
drm_ioc32.c
drm_ioctl.c
drm_kms_helper_common.c
drm_lease.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
drm_managed.c
drm_mipi_dbi.c
drm_mipi_dsi.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_mm.c
drm_mode_config.c
drm_mode_object.c drm/mode_object: add drm_object_immutable_property_get_value() 2026-01-14 02:18:31 +02:00
drm_modes.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_modeset_helper.c
drm_modeset_lock.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
drm_of.c
drm_pagemap_util.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_pagemap.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_panel_backlight_quirks.c
drm_panel_orientation_quirks.c
drm_panel.c
drm_panic_qr.rs
drm_panic.c drm/panic: Fix expected string for QR_CODE in drm_panic_type_map 2026-01-09 08:53:27 +00:00
drm_pci.c
drm_plane_helper.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
drm_plane.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
drm_prime.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_print.c
drm_privacy_screen_x86.c
drm_privacy_screen.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_probe_helper.c
drm_property.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_rect.c
drm_self_refresh_helper.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_simple_kms_helper.c
drm_suballoc.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
drm_syncobj.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_sysfs.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_trace_points.c
drm_trace.h
drm_vblank_helper.c
drm_vblank_work.c
drm_vblank.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_vma_manager.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drm_writeback.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
Kconfig Partly revert "drm/hyperv: Remove reference to hyperv_fb driver" 2026-02-14 14:38:23 -08:00
Kconfig.debug
Makefile Kbuild/Kconfig updates for 7.0 2026-02-11 13:40:35 -08:00