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b13201da5f81bbe7d901b9822fadd58492f11541
linux/drivers/gpu/drm/radeon
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Nikita Zhandarovich 8379b4ae63 drm/radeon: fix possible division-by-zero errors 
[ Upstream commit 1becc57cd1 ]

Function rv740_get_decoded_reference_divider() may return 0 due to
unpredictable reference divider value calculated in
radeon_atom_get_clock_dividers(). This will lead to
division-by-zero error once that value is used as a divider
in calculating 'clk_s'.
While unlikely, this issue should nonetheless be prevented so add a
sanity check for such cases by testing 'decoded_ref' value against 0.

Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.

v2: minor coding style fixes (Alex)
In practice this should actually happen as the vbios should be
properly populated.

Fixes: 66229b2005 ("drm/radeon/kms: add dpm support for rv7xx (v4)")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-11 19:39:40 +02:00
..
reg_srcs
…
.gitignore
drm/radeon: fix incorrrect SPDX-License-Identifiers
2022-06-21 17:54:53 -04:00
atom-bits.h
…
atom-names.h
…
atom-types.h
…
atom.c
drm: Convert open-coded yes/no strings to yesno()
2022-02-07 13:04:25 -08:00
atom.h
drm/radeon/atom: Move 'radeon_atom_hw_i2c_*()'s prototypes into shared header
2020-11-16 15:56:34 -05:00
atombios_crtc.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
atombios_dp.c
drm: Rename dp/ to display/
2022-04-25 11:17:45 +02:00
atombios_encoders.c
drm/radeon: Fix eDP for single-display iMac11,2
2023-03-01 22:37:25 -05:00
atombios_i2c.c
gpu: drm: dead code elimination
2019-12-18 16:09:13 -05:00
atombios.h
drm/radeon: Replace 1-element arrays with flexible-array members
2022-12-15 12:18:19 -05:00
avivod.h
…
btc_dpm.c
drm/radeon/btc_dpm: Move 'evergreen_get_pi's prototype to shared header
2020-11-16 15:56:35 -05:00
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
radeon: avoid double free in ci_dpm_init()
2023-07-11 19:39:32 +02:00
ci_dpm.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
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
drm/radeon: Remove KFD_CIK_SDMA_QUEUE_OFFSET
2017-12-20 12:00:22 -05:00
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: fix UVD suspend error
2022-01-18 17:43:36 -05:00
cik.h
drm/radeon/cik: Move 'Move 'cik_sdma_*()'s prototypes to shared header
2020-11-16 15:56:35 -05:00
cikd.h
drm/radeon: deprecate and remove KFD interface
2017-10-30 14:16:21 +01:00
clearstate_cayman.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
clearstate_ci.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
clearstate_defs.h
…
clearstate_evergreen.h
…
clearstate_si.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
cypress_dpm.c
drm/radeon: fix possible division-by-zero errors
2023-07-11 19:39:40 +02:00
cypress_dpm.h
…
dce3_1_afmt.c
drm/radeon: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
dce6_afmt.c
drm/radeon/radeon_audio: Move 'dce6_*()'s prototypes to shared header
2020-11-16 15:56:35 -05:00
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: Move 'r600_dma_cs_next_reloc()'s prototype to shared header
2020-11-16 15:56:35 -05:00
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/evergreen_hdmi: Move 'evergreen_*()' and 'dce4_*()' HDMI prototypes to shared header
2020-11-16 15:56:34 -05:00
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: fix vertical bars appear on monitor (v2)
2016-04-27 12:27:08 -04:00
evergreen_smc.h
…
evergreen.c
drm: Drop drm_framebuffer.h from drm_crtc.h
2022-06-20 23:53:55 +03:00
evergreen.h
drm/radeon/evergreen: Remove the repeated declaration
2021-05-25 23:47:24 -04:00
evergreend.h
drm/radeon: switch UVD code to use UVD_NO_OP for padding
2016-08-24 16:25:05 -04:00
Kconfig
drm: Only select I2C_ALGOBIT for drivers that actually need it
2023-01-10 11:15:44 +01:00
kv_dpm.c
drm/radeon/kv_dpm: Strip out unused functions and their tables
2020-11-13 00:11:53 -05:00
kv_dpm.h
…
kv_smc.c
drm/radeon: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
Makefile
drm/radeon: Drop legacy MST support
2022-08-23 16:53:43 -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
drm/radeon: fix possible division-by-zero errors
2023-07-11 19:39:40 +02:00
ni_dpm.h
drm/radeon/ni_dpm: Move 'ni_get_{pi, ps}()'s into shared header
2020-11-16 15:56:34 -05:00
ni_reg.h
drm/radeon/mst: port some MST setup code from DAL.
2016-04-06 14:57:46 -04:00
ni.c
drm/radeon: fix UVD suspend error
2022-01-18 17:43:36 -05:00
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
drm/radeon: switch UVD code to use UVD_NO_OP for padding
2016-08-24 16:25:05 -04:00
nislands_smc.h
drm/radeon/ni_dpm: Fix booting bug
2021-05-13 10:45:15 -04:00
ObjectID.h
…
ppsmc.h
…
pptable.h
…
r100_track.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
r100.c
drm: Drop drm_framebuffer.h from drm_crtc.h
2022-06-20 23:53:55 +03:00
r100d.h
…
r200.c
drm/radeon: fix r1xx/r2xx register checker for POT textures
2019-12-03 16:26:59 -05:00
r300_reg.h
gpu/drm/radeon: Fix typo in comments
2022-06-23 17:21:49 -04:00
r300.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
r300d.h
…
r420.c
drm/radeon: delete useless function return values & remove meaningless if(r) check code
2021-06-22 16:51:45 -04:00
r420d.h
…
r500_reg.h
…
r520.c
drm/radeon: delete useless function return values & remove meaningless if(r) check code
2021-06-22 16:51:45 -04:00
r520d.h
…
r600_cs.c
drm/radeon/r600_cs: remove r600_cs_legacy_get_tiling_conf() declaration
2022-09-13 14:52:14 -04:00
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
drm/radeon: make array encoded_lanes static
2021-09-23 15:17:28 -04:00
r600_dpm.h
drm/radeon: prepare header files for drmP.h removal
2019-06-10 22:30:24 +02:00
r600_hdmi.c
drm/radeon/radeon_audio: Move 'r600_*' prototypes into shared header
2020-11-16 15:56:35 -05:00
r600_reg.h
drm/radeon: enable ABGR and XBGR formats (v2)
2018-08-27 11:10:19 -05:00
r600.c
drm/radeon: fix UVD suspend error
2022-01-18 17:43:36 -05:00
r600.h
drm/radeon/radeon_audio: Move 'r600_*' prototypes into shared header
2020-11-16 15:56:35 -05:00
r600d.h
drm/radeon: add support for UVD_NO_OP register
2016-08-24 16:25:04 -04:00
radeon_acpi.c
drm: Include <linux/backlight.h> where needed
2023-01-13 13:13:57 +01:00
radeon_acpi.h
drm/radeon: Make radeon_atif_handler static
2017-08-15 14:46:07 -04:00
radeon_agp.c
drm/radeon: Move AGP data structures into radeon
2021-05-10 15:46:50 +02:00
radeon_asic.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
radeon_asic.h
drm/radeon: remove the repeated declaration
2021-05-25 23:47:30 -04:00
radeon_atombios.c
drm/radeon: Replace one-element array with flexible-array member
2022-11-04 16:05:53 -04:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191
2019-05-30 11:29:21 -07:00
radeon_audio.c
drm/radeon: Add HD-audio component notifier support (v6)
2022-11-10 15:29:00 -05:00
radeon_audio.h
drm/radeon/radeon_audio: Move 'dce3_2_*' prototypes to shared location
2020-11-16 15:56:33 -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: Fix PCI device refcount leak in radeon_atrm_get_bios()
2022-11-29 11:03:38 -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: Remove references to struct drm_device.pdev
2021-01-06 15:43:46 +01:00
radeon_connectors.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
radeon_cs.c
drm/ttm: rework on ttm_resource to use size_t type
2022-10-27 11:42:58 +02:00
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
Merge tag 'amd-drm-next-6.3-2023-01-13' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
2023-01-16 15:04:13 +10:00
radeon_device.h
drm/radeon/radeon: Move prototype into shared header
2020-11-16 15:56:33 -05:00
radeon_display.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
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/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
radeon_drv.h
drm/radeon/radeon_drv: Move prototypes to a shared headerfile
2020-11-13 00:03:49 -05:00
radeon_encoders.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
radeon_family.h
…
radeon_fb.c
drm/fb-helper: Remove drm_fb_helper_unprepare() from drm_fb_helper_fini()
2023-02-21 13:26:18 +01:00
radeon_fence.c
Merge drm/drm-next into drm-misc-next
2021-09-14 09:25:30 +02:00
radeon_gart.c
drm/radeon: use the dummy page for GART if needed
2021-05-19 22:32:24 -04:00
radeon_gem.c
drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl
2023-06-28 11:14:23 +02:00
radeon_i2c.c
drm/radeon: Remove references to struct drm_device.pdev
2021-01-06 15:43:46 +01:00
radeon_ib.c
drm/radeon: do not use drm middle layer for debugfs (v2)
2021-02-18 16:43:10 -05:00
radeon_irq_kms.c
drm/radeon: reintroduce radeon_dp_work_func content
2023-05-30 14:17:23 +01:00
radeon_kms.c
drm/radeon: remove resource accounting v2
2022-02-15 17:51:09 +01:00
radeon_kms.h
drm/radeon: Convert to Linux IRQ interfaces
2021-08-10 20:13:49 +02:00
radeon_legacy_crtc.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
radeon_legacy_encoders.c
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
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: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
radeon_mn.c
dma-buf: add DMA_RESV_USAGE_BOOKKEEP v3
2022-04-07 12:53:54 +02:00
radeon_mode.h
drm/radeon: Remove unnecessary include statements for drm_crtc_helper.h
2023-01-18 09:25:31 +01:00
radeon_object.c
drm/ttm: rework on ttm_resource to use size_t type
2022-10-27 11:42:58 +02:00
radeon_object.h
drm/radeon: remove resource accounting v2
2022-02-15 17:51:09 +01:00
radeon_pm.c
drm/ttm: remove ttm_bo_(un)lock_delayed_workqueue
2022-12-06 10:28:12 +01:00
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/ttm: merge ttm_bo_api.h and ttm_bo_driver.h v2
2022-12-06 12:54:14 +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: do not use drm middle layer for debugfs (v2)
2021-02-18 16:43:10 -05:00
radeon_sa.c
drm/radeon: Initialize fences array entries in radeon_sa_bo_next_hole
2022-06-08 11:41:09 -04:00
radeon_semaphore.c
drm/radeon: drop use of drmP.h (1/2)
2019-06-10 22:30:24 +02:00
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
drm/radeon: switch driver from bo->resv to bo->base.resv
2019-08-06 08:21:54 +02:00
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
drm/ttm: revert "prevent moving of pinned BOs"
2023-01-25 17:27:51 +01:00
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: use DMA_RESV_USAGE_KERNEL
2022-04-07 12:53:54 +02:00
radeon_vce.c
drm/radeon: Fix syntax errors in comments
2021-12-14 16:11:02 -05:00
radeon_vm.c
dma-buf/drivers: make reserving a shared slot mandatory v4
2022-04-06 17:38:25 +02:00
radeon.h
drm/ttm: merge ttm_bo_api.h and ttm_bo_driver.h v2
2022-12-06 12:54:14 +01:00
rs100d.h
…
rs400.c
drm/radeon: delete useless function return values & remove meaningless if(r) check code
2021-06-22 16:51:45 -04:00
rs400d.h
…
rs600.c
drm: Drop drm_framebuffer.h from drm_crtc.h
2022-06-20 23:53:55 +03:00
rs600d.h
…
rs690.c
drm/radeon: delete useless function return values & remove meaningless if(r) check code
2021-06-22 16:51:45 -04:00
rs690d.h
…
rs780_dpm.c
drm/radeon: Remove references to struct drm_device.pdev
2021-01-06 15:43:46 +01:00
rs780_dpm.h
…
rs780d.h
…
rv6xx_dpm.c
drm/radeon: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
rv6xx_dpm.h
…
rv6xxd.h
…
rv200d.h
…
rv250d.h
…
rv350d.h
…
rv515.c
drm/radeon: delete useless function return values & remove meaningless if(r) check code
2021-06-22 16:51:45 -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
2023-07-11 19:39:40 +02:00
rv740d.h
…
rv770_dma.c
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
rv770_dpm.c
drm/radeon/btc_dpm: Move 'evergreen_get_pi's prototype to shared header
2020-11-16 15:56:35 -05:00
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: drop use of drmP.h (2/2)
2019-06-10 22:30:24 +02:00
rv770_smc.h
…
rv770.c
drm: Drop drm_framebuffer.h from drm_crtc.h
2022-06-20 23:53:55 +03:00
rv770.h
drm/radeon/rv770: Move 'rv770_get_*()'s prototypes to shared header
2020-11-16 15:56:34 -05:00
rv770d.h
drm/radeon: switch UVD code to use UVD_NO_OP for padding
2016-08-24 16:25:05 -04:00
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: change cac_weights_* to static
2022-04-26 11:43:57 -04:00
si_dpm.h
drm/radeon/ci_dpm: Move 'si_*()'s prototypes to shared header
2020-11-16 15:56:35 -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: fix UVD suspend error
2022-01-18 17:43:36 -05:00
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: allow TA_CS_BC_BASE_ADDR on SI
2016-10-12 15:44:15 -04:00
sislands_smc.h
drm/radeon/si_dpm: Fix SMU power state load
2021-05-13 10:45:29 -04:00
smu7_discrete.h
…
smu7_fusion.h
…
smu7.h
…
sumo_dpm.c
drm/radeon: Add implementation of get_current_vddc for Sumo
2020-10-27 17:43:42 -04:00
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
drm/radeon/si_dpm: Move 'vce_v1_0_enable_mgcg()'s prototype to shared header
2020-11-16 15:56:35 -05:00
trinity_dpm.h
…
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: fix typoes in comments
2020-09-22 17:37:38 -04:00
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