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ef24ff4f5cda39f8a2e7da3d57773da8fbe600ce
linux/drivers/gpu/drm/radeon
History
Wang Jiang 5f08eee9c3 drm/radeon: restore hardware polling in fence_is_signaled to fix performance regression 
Commit 527ba26e50 ("drm/radeon: delete radeon_fence_process in
is_signaled, no deadlock") removed the hardware polling from
radeon_fence_is_signaled() to fix a self-deadlock caused by
wake_up_all(&rdev->fence_queue) being called with the fence queue
lock held.

However, removing the polling entirely causes significant performance
regression (e.g. glxgears FPS drop) because the fence signaled check
becomes purely passive — it only reads the cached last_seq without
probing the GPU, so completed GPU work is not detected in time,
causing unnecessary CPU stalls in sync-heavy workloads.

Fix this by calling radeon_fence_activity() directly instead of
radeon_fence_process(). radeon_fence_activity() reads the hardware
fence counter and updates last_seq via atomic ops without calling
wake_up_all(), thus avoiding the deadlock while restoring timely
fence detection.

Fixes: 527ba26e50 ("drm/radeon: delete radeon_fence_process in is_signaled, no deadlock")
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Wang Jiang <jiangwang@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit f59ad4cca2)
Cc: stable@vger.kernel.org
2026-08-06 14:33:39 -04:00
..
reg_srcs
…
.gitignore
drm/radeon: fix incorrrect SPDX-License-Identifiers
2022-06-21 17:54:53 -04:00
atom-bits.h
drm/radeon: Clean up errors in ni_dpm.c
2024-01-18 15:39:02 -05:00
atom-names.h
…
atom-types.h
…
atom.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
atom.h
drm/radeon: check PS, WS index
2024-01-15 18:35:37 -05:00
atombios_crtc.c
drm/radeon: Do not implement mode_set_base_atomic callback
2025-12-02 09:20:36 +01:00
atombios_dp.c
drm/display: dp: change drm_dp_dpcd_read_link_status() return value
2025-03-25 16:20:38 +02:00
atombios_encoders.c
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
2026-02-21 20:03:00 -08:00
atombios_i2c.c
drm/radeon: check PS, WS index
2024-01-15 18:35:37 -05:00
atombios.h
drm/radeon: fixing typo in macro name
2025-05-22 12:02:01 -04:00
avivod.h
…
btc_dpm.c
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
2026-02-21 20:03:00 -08:00
btc_dpm.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
btcd.h
…
cayman_blit_shaders.h
drm/radeon: change cayman_default_state table from global to static
2022-04-11 13:50:35 -04:00
ci_dpm.c
drm/radeon: add missing revision check for CI
2026-05-05 09:56:48 -04:00
ci_dpm.h
drm/radeon: Clean up errors in ci_dpm.h
2024-01-18 15:40:19 -05:00
ci_smc.c
drm/radeon: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
cik_blit_shaders.h
drm/radeon: change cik_default_state table from global to static
2022-04-26 11:43:51 -04:00
cik_reg.h
…
cik_sdma.c
drm/radeon/cik_sdma: Move 'amdgpu_cik_gpu_check_soft_reset()'s prototype to shared header
2020-11-16 15:56:35 -05:00
cik.c
drm/radeon: replace nested min calls with min3
2026-04-17 15:41:13 -04:00
cik.h
drm/radeon/cik: Move 'Move 'cik_sdma_*()'s prototypes to shared header
2020-11-16 15:56:35 -05:00
cikd.h
…
clearstate_cayman.h
drm/radeon: Clean up errors in clearstate_cayman.h
2024-01-18 15:40:15 -05:00
clearstate_ci.h
drm/radeon: Clean up errors in clearstate_ci.h
2024-01-18 15:40:13 -05:00
clearstate_defs.h
…
clearstate_evergreen.h
drm/radeon: Fix warning using plain integer as NULL
2023-11-17 09:29:54 -05:00
clearstate_si.h
drm/radeon: that open brace { should be on the previous line
2023-07-27 14:47:29 -04:00
cypress_dpm.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
cypress_dpm.h
…
dce3_1_afmt.c
drm/radeon: include drm/drm_edid.h only where needed
2023-12-13 15:28:31 -05:00
dce6_afmt.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
dce6_afmt.h
drm/radeon/radeon_audio: Move 'dce6_*()'s prototypes to shared header
2020-11-16 15:56:35 -05:00
evergreen_blit_shaders.h
drm/radeon/kms: change evergreen_default_state table from global to static
2022-04-19 13:58:32 -04:00
evergreen_cs.c
drm/radeon/evergreen_cs: Add missing NULL prefix check in surface check
2026-05-19 11:49:56 -04:00
evergreen_dma.c
drm/radeon/evergreen_dma: Move 'evergreen_gpu_check_soft_reset()'s prototype to shared header
2020-11-16 15:56:34 -05:00
evergreen_hdmi.c
drm/radeon: convert to using is_hdmi and has_audio from display info
2024-05-23 14:37:24 +03:00
evergreen_hdmi.h
drm/radeon/evergreen_hdmi: Move 'evergreen_*()' and 'dce4_*()' HDMI prototypes to shared header
2020-11-16 15:56:34 -05:00
evergreen_reg.h
drm/radeon: Clean up errors in evergreen_reg.h
2024-01-18 15:39:55 -05:00
evergreen_smc.h
drm/radeon/dpm: Clean up errors in evergreen_smc.h
2024-01-18 15:40:17 -05:00
evergreen.c
drm/radeon: Convert legacy DRM logging in evergreen.c to drm_* helpers
2025-12-16 13:29:15 -05:00
evergreen.h
drm/radeon/evergreen: Remove the repeated declaration
2021-05-25 23:47:24 -04:00
evergreend.h
…
Kconfig
PCI: Add CONFIG_MMU dependency
2025-04-23 15:40:30 -05:00
kv_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
kv_dpm.h
…
kv_smc.c
drm/radeon: Clean up errors in kv_smc.c
2024-01-18 15:39:53 -05:00
Makefile
drm/radeon: Only build fbdev if DRM_FBDEV_EMULATION is set
2023-03-31 11:18:42 -04:00
mkregtable.c
drm/radeon: change SPDX identifier to MIT
2018-10-15 16:16:12 -05:00
ni_dma.c
drm/radeon/ni_dma: Move 'cayman_gpu_check_soft_reset()'s prototype to shared header
2020-11-16 15:56:34 -05:00
ni_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
ni_dpm.h
drm/radeon/ni_dpm: Clean up errors in ni_dpm.c
2024-01-18 15:38:59 -05:00
ni_reg.h
…
ni.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
ni.h
drm/radeon/ni_dma: Move 'cayman_gpu_check_soft_reset()'s prototype to shared header
2020-11-16 15:56:34 -05:00
nid.h
…
nislands_smc.h
drm/radeon/ni_dpm: Clean up errors in nislands_smc.h
2024-01-18 15:40:36 -05:00
ObjectID.h
…
ppsmc.h
…
pptable.h
drm/radeon: Remove __counted_by from ClockInfoArray.clockInfo[]
2026-01-05 17:23:41 -05:00
r100_track.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
r100.c
drm/radeon: fix r100_copy_blit for large BOs
2026-06-17 18:19:00 -04:00
r100d.h
…
r200.c
drm/radeon: use dev_warn_once() in CS parsers
2025-09-05 17:38:42 -04:00
r300_reg.h
gpu/drm/radeon: Clean up errors in evergreen.c
2024-01-18 15:39:50 -05:00
r300.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
r300d.h
…
r420.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
r420d.h
…
r500_reg.h
…
r520.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
r520d.h
…
r600_cs.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
r600_dma.c
drm/radeon/r600_dma: Move 'r600_gpu_check_soft_reset()'s prototype to shared location
2020-11-16 15:56:34 -05:00
r600_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
r600_dpm.h
drm/radeon: Clean up errors in r600_dpm.h
2024-01-18 15:38:52 -05:00
r600_hdmi.c
drm/radeon/radeon_audio: Remove unused r600_hdmi_audio_workaround
2025-04-22 08:51:45 -04:00
r600_reg.h
drm/radeon: enable ABGR and XBGR formats (v2)
2018-08-27 11:10:19 -05:00
r600.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
r600.h
drm/radeon/radeon_audio: Move 'r600_*' prototypes into shared header
2020-11-16 15:56:35 -05:00
r600d.h
…
radeon_acpi.c
ACPI: AC: Define ACPI_AC_CLASS in one place
2026-03-13 16:48:28 +01:00
radeon_acpi.h
drm/radeon: Fix missing prototypes in radeon_atpx_handler.c
2023-06-15 11:06:58 -04:00
radeon_agp.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
radeon_asic.c
drm/radeon: Clean up errors in radeon_asic.c
2024-01-18 15:39:16 -05:00
radeon_asic.h
drm/radeon/radeon_audio: Remove unused r600_hdmi_audio_workaround
2025-04-22 08:51:45 -04:00
radeon_atombios.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
radeon_atombios.h
drm/radeon/radeon_encoders: Move 'radeon_atom_backlight_init's prototype to shared header
2020-11-16 15:56:34 -05:00
radeon_atpx_handler.c
drm/radeon: Clean up errors in radeon_atpx_handler.c
2024-01-18 15:38:46 -05:00
radeon_audio.c
drm/radeon/radeon_connectors: use struct drm_edid instead of struct edid
2026-05-27 10:51:15 -04:00
radeon_audio.h
drm/radeon: Clean up errors in radeon_audio.h
2024-01-18 15:39:27 -05:00
radeon_benchmark.c
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
radeon_bios.c
drm/radeon: Use pci_get_base_class() to reduce duplicated code
2023-09-28 16:54:54 -05:00
radeon_clocks.c
drm/radeon: Don't include <drm/drm_pci.h>
2019-12-05 08:44:28 +01:00
radeon_combios.c
drm/radeon/radeon_connectors: use struct drm_edid instead of struct edid
2026-05-27 10:51:15 -04:00
radeon_connectors.c
drm/radeon/radeon_connectors: remove radeon_connector_free_edid
2026-05-27 10:51:19 -04:00
radeon_cs.c
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
2026-02-21 20:03:00 -08:00
radeon_cursor.c
drm/radeon: remove _unlocked suffix in drm_gem_object_put_unlocked
2020-05-19 22:31:34 +01:00
radeon_device.c
drm/radeon: Test for fbdev GEM object with generic helper
2026-03-06 16:31:42 -05:00
radeon_device.h
drm/radeon/radeon: Move prototype into shared header
2020-11-16 15:56:33 -05:00
radeon_display.c
drm/radeon: add WQ_PERCPU to alloc_workqueue users
2026-04-03 13:52:39 -04:00
radeon_dp_auxch.c
drm/radeon: Do not use deprecated drm log API
2023-01-18 10:00:03 +01:00
radeon_drv.c
drm/amdgpu: Use amdgpu by default for CIK APUs too
2026-04-03 14:04:57 -04:00
radeon_drv.h
drm: remove driver date from struct drm_driver and all drivers
2024-12-05 12:35:42 +02:00
radeon_encoders.c
drm/radeon: Fix encoder->possible_clones
2024-10-15 11:25:01 -04:00
radeon_family.h
…
radeon_fbdev.c
drm/radeon: Test for fbdev GEM object with generic helper
2026-03-06 16:31:42 -05:00
radeon_fence.c
drm/radeon: restore hardware polling in fence_is_signaled to fix performance regression
2026-08-06 14:33:39 -04:00
radeon_gart.c
drm/radeon: Use vmalloc_array and vcalloc to simplify code
2025-08-18 17:06:24 -04:00
radeon_gem.c
drm/radeon: fix integer overflow in radeon_align_pitch()
2026-04-17 15:41:16 -04:00
radeon_i2c.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
radeon_ib.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
radeon_irq_kms.c
drm/radeon: Make MSI address limit based on the device DMA limit
2026-01-31 01:11:48 +01:00
radeon_kms.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
radeon_kms.h
drm/radeon: Convert to Linux IRQ interfaces
2021-08-10 20:13:49 +02:00
radeon_legacy_crtc.c
drm/radeon: Do not implement mode_set_base_atomic callback
2025-12-02 09:20:36 +01:00
radeon_legacy_encoders.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
radeon_legacy_encoders.h
drm/radeon/radeon_legacy_encoders: Move 'radeon_add_legacy_encoder's prototype to shared location
2020-11-16 15:56:33 -05:00
radeon_legacy_tv.c
drm/radeon: Move assignment outside if condition
2023-07-27 14:47:34 -04:00
radeon_mn.c
dma-buf: add DMA_RESV_USAGE_BOOKKEEP v3
2022-04-07 12:53:54 +02:00
radeon_mode.h
drm/radeon/radeon_connectors: use struct drm_edid instead of struct edid
2026-05-27 10:51:15 -04:00
radeon_object.c
drm/radeon: switch over to drm_exec v2
2024-11-20 13:59:34 +01:00
radeon_object.h
drm/radeon: switch over to drm_exec v2
2024-11-20 13:59:34 +01:00
radeon_pm.c
drm/radeon/pm: Remove redundant ternary operators
2025-09-05 17:38:40 -04:00
radeon_pm.h
drm/radeon/radeon_pm: Move 'radeon_pm_acpi_event_handler' prototype into shared header
2020-11-16 15:56:33 -05:00
radeon_prime.c
drm/gem: Acquire reservation lock in drm_gem_{pin/unpin}()
2024-03-11 13:33:50 +01:00
radeon_prime.h
drm/radeon/radeon_drv: Move 'radeon_gem_prime_import_sg_table()'s prototype to shared header
2020-11-16 15:56:35 -05:00
radeon_reg.h
…
radeon_ring.c
drm/radeon: fix memory leak in radeon_ring_restore() on lock failure
2026-04-17 15:41:16 -04:00
radeon_sa.c
drm/radeon: make fence wait in suballocator uninterrruptable
2023-09-07 17:45:34 +02:00
radeon_semaphore.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
radeon_sync.c
Backmerge tag 'v5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
2022-05-03 16:08:48 +10:00
radeon_test.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
radeon_trace_points.c
drm/radeon: drop use of drmP.h (1/2)
2019-06-10 22:30:24 +02:00
radeon_trace.h
drm/ttm: rework on ttm_resource to use size_t type
2022-10-27 11:42:58 +02:00
radeon_ttm.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
radeon_ttm.h
drm/radeon: Implement mmap as GEM object function
2021-05-26 20:56:29 +02:00
radeon_ucode.c
drm/radeon: drop use of drmP.h (1/2)
2019-06-10 22:30:24 +02:00
radeon_ucode.h
…
radeon_uvd.c
drm/radeon/uvd: Replace nested max() with single max3()
2025-03-19 15:51:40 -04:00
radeon_vce.c
drm/radeon: convert VCE logging to drm_* helpers
2026-01-20 17:28:06 -05:00
radeon_vm.c
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
2026-02-21 20:03:00 -08:00
radeon.h
drm: include drm_print.h where needed
2025-10-31 10:34:52 +02:00
rs100d.h
…
rs400.c
drm/radeon: Fix rs400_gpu_init for ATI mobility radeon Xpress 200M
2025-03-05 10:43:01 -05:00
rs400d.h
…
rs600.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
rs600d.h
…
rs690.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
rs690d.h
…
rs780_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
rs780_dpm.h
…
rs780d.h
…
rv6xx_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
rv6xx_dpm.h
drm/radeon/kms: Clean up errors in rv6xx_dpm.h
2024-01-18 15:39:14 -05:00
rv6xxd.h
…
rv200d.h
…
rv250d.h
…
rv350d.h
…
rv515.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
rv515d.h
…
rv730_dpm.c
drm/radeon/rv770: Move 'rv770_get_*()'s prototypes to shared header
2020-11-16 15:56:34 -05:00
rv730d.h
…
rv740_dpm.c
drm/radeon: fix possible division-by-zero errors
2023-06-09 10:44:47 -04:00
rv740d.h
…
rv770_dma.c
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
rv770_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
rv770_dpm.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
rv770_smc.c
drm/radeon: that open brace { should be on the previous line
2023-07-27 14:47:31 -04:00
rv770_smc.h
drm/radeon: Clean up errors in rv770_smc.h
2024-01-18 15:39:45 -05:00
rv770.c
drm/radeon: change rdev->ddev to rdev_to_drm(rdev)
2024-07-23 17:31:59 -04:00
rv770.h
drm/radeon/rv770: Move 'rv770_get_*()'s prototypes to shared header
2020-11-16 15:56:34 -05:00
rv770d.h
…
si_blit_shaders.h
drm/radeon: change si_default_state table from global to static
2022-04-06 10:20:25 -04:00
si_dma.c
drm/radeon/si_dma: Move 'si_gpu_check_soft_reset()'s prototype to shared header
2020-11-16 15:56:34 -05:00
si_dpm.c
drm/radeon: apply state adjust rules to some additional HAINAN vairants
2026-03-17 18:04:15 -04:00
si_dpm.h
drm/radeon: Clean up errors in si_dpm.h
2024-01-18 15:39:35 -05:00
si_reg.h
…
si_smc.c
drm/radeon: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
si.c
drm/radeon: replace nested min calls with min3
2026-04-17 15:41:13 -04:00
si.h
drm/radeon/evergreen: Move 'si_get_csb_*()'s prototypes to shared header
2020-11-16 15:56:35 -05:00
sid.h
drm/radeon: fix MAX_POWER_SHIFT value
2025-04-07 15:18:32 -04:00
sislands_smc.h
drm/radeon/si_dpm: open brace '{' following struct go on the same line
2023-07-25 13:47:27 -04:00
smu7_discrete.h
drm/radeon: Clean up errors in smu7_discrete.h
2024-01-18 15:39:04 -05:00
smu7_fusion.h
drm/radeon/kms: Clean up errors in smu7_fusion.h
2024-01-18 15:40:06 -05:00
smu7.h
drm/radeon/kms: Clean up errors in smu7.h
2024-01-18 15:40:08 -05:00
sumo_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
sumo_dpm.h
drm/radeon/sumo_dpm: Move 'sumo_get_pi()'s prototype into shared header
2020-11-13 00:12:30 -05:00
sumo_smc.c
drm/radeon/sumo_dpm: Move 'sumo_get_pi()'s prototype into shared header
2020-11-13 00:12:30 -05:00
sumod.h
…
trinity_dpm.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
trinity_dpm.h
drm/radeon/dpm: Clean up errors in trinity_dpm.h
2024-01-18 15:39:09 -05:00
trinity_smc.c
drm/radeon: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
trinityd.h
…
uvd_v1_0.c
drm/radeon: convert UVD v1.0 logging to drm_* helpers
2026-01-08 11:43:13 -05:00
uvd_v2_2.c
drm/radeon: fix typoes in comments
2020-09-22 17:37:38 -04:00
uvd_v3_1.c
drm/radeon: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
uvd_v4_2.c
drm/radeon: fix typoes in comments
2020-09-22 17:37:38 -04:00
vce_v1_0.c
drm/radeon: OLAND boards don't have VCE
2021-02-18 16:43:09 -05:00
vce_v2_0.c
drm/radeon/cik: Move 'vce_v2_0_enable_mgcg()'s prototype to shared header
2020-11-16 15:56:35 -05:00
vce.h
drm/radeon/cik: Move 'vce_v2_0_enable_mgcg()'s prototype to shared header
2020-11-16 15:56:35 -05:00