AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/gpu/drm/radeon
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Paul Parsons 85e290d92b drm/radeon: Fix PCIe lane width calculation 
Two years ago I tried an AMD Radeon E8860 embedded GPU with the drm driver.
The dmesg output included driver warnings about an invalid PCIe lane width.
Tracking the problem back led to si_set_pcie_lane_width_in_smc().
The calculation of the lane widths via ATOM_PPLIB_PCIE_LINK_WIDTH_MASK and
ATOM_PPLIB_PCIE_LINK_WIDTH_SHIFT macros did not increment the resulting
value, per the comment in pptable.h ("lanes - 1"), and per usage elsewhere.
Applying the increment silenced the warnings.
The code has not changed since, so either my analysis was incorrect or the
bug has gone unnoticed. Hence submitting this as an RFC.

Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2018-04-03 13:08:45 -05:00
..
reg_srcs
.gitignore
atom-bits.h
atom-names.h
atom-types.h
atom.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
atom.h
atombios_crtc.c drm: radeon: remove dead code and pointless local lut storage 2017-08-04 11:36:17 +02:00
atombios_dp.c drm/radeon: fix atombios on big endian 2017-10-31 18:24:59 -04:00
atombios_encoders.c drm/radeon: Fix eDP for single-display iMac10,1 (v2) 2017-07-07 11:11:28 -04:00
atombios_i2c.c
atombios.h scripts/spelling.txt: add "aligment" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
avivod.h
btc_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
btc_dpm.h
btcd.h
cayman_blit_shaders.c
cayman_blit_shaders.h
ci_dpm.c drm/radeon: move ci_send_msg_to_smc to where it's used 2017-10-08 20:16:28 -04:00
ci_dpm.h drm/radeon: move ci_send_msg_to_smc to where it's used 2017-10-08 20:16:28 -04:00
ci_smc.c drm/radeon: move ci_send_msg_to_smc to where it's used 2017-10-08 20:16:28 -04:00
cik_blit_shaders.c
cik_blit_shaders.h
cik_reg.h drm/radeon: Remove KFD_CIK_SDMA_QUEUE_OFFSET 2017-12-20 12:00:22 -05:00
cik_sdma.c
cik.c drm/radeon: fix KV harvesting 2018-03-07 16:27:00 -05:00
cikd.h drm/radeon: deprecate and remove KFD interface 2017-10-30 14:16:21 +01:00
clearstate_cayman.h
clearstate_ci.h
clearstate_defs.h
clearstate_evergreen.h
clearstate_si.h
cypress_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
cypress_dpm.h
dce3_1_afmt.c
dce6_afmt.c
evergreen_blit_shaders.c
evergreen_blit_shaders.h
evergreen_cs.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
evergreen_dma.c
evergreen_hdmi.c
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/radeon: fill in rb backend map on evergreen/ni. 2018-01-16 15:35:28 -05:00
evergreend.h drm/radeon: switch UVD code to use UVD_NO_OP for padding 2016-08-24 16:25:05 -04:00
Kconfig
kv_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
kv_dpm.h
kv_smc.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
Makefile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
mkregtable.c drm/radeon/mkregtable: Delete unused list functions and macros 2018-03-05 13:31:11 -05:00
ni_dma.c
ni_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
ni_dpm.h
ni_reg.h
ni.c drm/radeon: fill in rb backend map on evergreen/ni. 2018-01-16 15:35:28 -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
ObjectID.h
ppsmc.h
pptable.h
r100_track.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
r100.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
r100d.h
r200.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
r300_reg.h
r300.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
r300d.h
r420.c drm/radeon: check return value of radeon_ring_lock 2017-04-28 17:33:02 -04:00
r420d.h
r500_reg.h
r520.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
r520d.h
r600_blit_shaders.c
r600_blit_shaders.h
r600_cs.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
r600_dma.c
r600_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
r600_dpm.h
r600_hdmi.c drm/radeon: properly initialize r600_audio_status() data 2017-09-18 23:30:30 -04:00
r600_reg.h
r600.c drm/radeon: Unbreak HPD handling for r600+ 2017-05-24 17:39:33 -04:00
r600d.h drm/radeon: add support for UVD_NO_OP register 2016-08-24 16:25:04 -04:00
radeon_acpi.c drm/radeon: Make radeon_atif_handler static 2017-08-15 14:46:07 -04:00
radeon_acpi.h drm/radeon: Make radeon_atif_handler static 2017-08-15 14:46:07 -04:00
radeon_agp.c
radeon_asic.c drm/radeon: add driver option to disable vce block. 2016-05-02 13:08:53 -04:00
radeon_asic.h drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC 2016-05-04 20:19:03 -04:00
radeon_atombios.c drm/radeon: add missing header dependencies 2016-10-25 14:38:18 -04:00
radeon_atpx_handler.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
radeon_audio.c drm: handle HDMI 2.0 VICs in AVI info-frames 2017-07-14 21:23:54 +03:00
radeon_audio.h
radeon_benchmark.c
radeon_bios.c drm/radeon: remove some dead code 2017-02-08 21:04:29 -05:00
radeon_clocks.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
radeon_combios.c drm/radeon: add a quirk for Toshiba Satellite L20-183 2017-06-20 12:06:51 -04:00
radeon_connectors.c drm/radeon: Don't turn off DP sink when disconnected 2018-03-15 10:41:53 -05:00
radeon_cs.c drm/radeon: Fix preferred typo 2017-08-15 14:46:16 -04:00
radeon_cursor.c drm/radeon: switch to drm_*{get,put} helpers 2017-08-15 14:46:12 -04:00
radeon_device.c drm/radeon: insist on 32-bit DMA for Cedar on PPC64/PPC64LE 2018-02-26 23:09:38 -05:00
radeon_display.c drm/radeon: Handle 64-bit return from drm_crtc_vblank_count() 2018-02-15 11:49:42 -08:00
radeon_dp_auxch.c drm/radeon/dp_auxch: Ratelimit aux transfer debug messages 2017-03-29 23:53:21 -04:00
radeon_dp_mst.c drm/radeon: use raw buffer printk specifier 2018-02-19 14:17:04 -05:00
radeon_drv.c vga_switcheroo: Use device link for HDA controller 2018-03-13 22:58:09 +01:00
radeon_drv.h
radeon_encoders.c
radeon_family.h
radeon_fb.c drm/radeon: Use drm_fb_helper_lastclose() and _poll_changed() 2017-12-06 12:48:34 -05:00
radeon_fence.c sched/wait: Rename wait_queue_t => wait_queue_entry_t 2017-06-20 12:18:27 +02:00
radeon_gart.c drm: use set_memory.h header 2017-05-08 17:15:14 -07:00
radeon_gem.c drm/radeon: fix prime teardown order 2018-03-14 15:39:42 -05:00
radeon_i2c.c drm/radeon: fix up dp aux tear down (v2) 2016-10-12 15:44:13 -04:00
radeon_ib.c
radeon_irq_kms.c Merge branch 'drm-next-4.14' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-08-02 12:43:12 +10:00
radeon_kms.c drm/radeon: Use drm_fb_helper_lastclose() and _poll_changed() 2017-12-06 12:48:34 -05:00
radeon_legacy_crtc.c drm: radeon: remove dead code and pointless local lut storage 2017-08-04 11:36:17 +02:00
radeon_legacy_encoders.c drm/radeon: add missing header dependencies 2016-10-25 14:38:18 -04:00
radeon_legacy_tv.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
radeon_mn.c drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
radeon_mode.h drm/radeon: Use drm_fb_helper_lastclose() and _poll_changed() 2017-12-06 12:48:34 -05:00
radeon_object.c drm/radeon: fix prime teardown order 2018-03-14 15:39:42 -05:00
radeon_object.h drm/ttm: add evict parameter to ttm_bo_driver::move_notify 2017-01-27 11:13:15 -05:00
radeon_pm.c Revert "drm/radeon/pm: autoswitch power state when in balanced mode" 2018-02-20 16:27:16 -05:00
radeon_prime.c drm/radeon: Maintain prime import/export refcount for BOs 2017-04-07 12:20:40 -04:00
radeon_reg.h
radeon_ring.c drm: drop drm_[cm]alloc* helpers 2017-05-18 17:22:39 +02:00
radeon_sa.c
radeon_semaphore.c
radeon_sync.c dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
radeon_test.c drm/radeon: check return value of radeon_fence_emit 2017-04-28 17:33:02 -04:00
radeon_trace_points.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
radeon_trace.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
radeon_ttm.c drm/ttm: add bo as parameter to the ttm_tt_create callback 2018-03-14 14:38:27 -05:00
radeon_ucode.c
radeon_ucode.h
radeon_uvd.c drm/radeon: adjust tested variable 2018-01-29 23:18:17 -05:00
radeon_vce.c
radeon_vm.c drm/ttm: add operation ctx to ttm_bo_validate v2 2017-12-06 12:48:01 -05:00
radeon.h drm/radeon: only enable swiotlb path when need v2 2018-02-13 13:35:14 -05:00
rs100d.h
rs400.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
rs400d.h
rs600.c drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC 2016-05-04 20:19:03 -04:00
rs600d.h
rs690.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
rs690d.h
rs780_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
rs780_dpm.h
rs780d.h
rv6xx_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
rv6xx_dpm.h
rv6xxd.h
rv200d.h
rv250d.h
rv350d.h
rv515.c gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-29 23:53:24 -04:00
rv515d.h
rv730_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
rv730d.h
rv740_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
rv740d.h
rv770_dma.c
rv770_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
rv770_dpm.h
rv770_smc.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
rv770_smc.h
rv770.c drm/radeon: switch UVD code to use UVD_NO_OP for padding 2016-08-24 16:25:05 -04:00
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.c
si_blit_shaders.h
si_dma.c
si_dpm.c drm/radeon: Fix PCIe lane width calculation 2018-04-03 13:08:45 -05:00
si_dpm.h
si_reg.h
si_smc.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
si.c Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
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 phase shedding setup 2016-09-28 16:13:16 -04:00
smu7_discrete.h
smu7_fusion.h
smu7.h
sumo_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
sumo_dpm.h
sumo_smc.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
sumod.h
trinity_dpm.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
trinity_dpm.h
trinity_smc.c drm/radeon: fix include notation and remove -Iinclude/drm flag 2017-05-17 14:36:40 +02:00
trinityd.h
uvd_v1_0.c drm/radeon: handle more than 10 UVD sessions 2016-05-04 20:19:43 -04:00
uvd_v2_2.c drm/radeon: handle more than 10 UVD sessions 2016-05-04 20:19:43 -04:00
uvd_v3_1.c
uvd_v4_2.c drm/radeon: handle more than 10 UVD sessions 2016-05-04 20:19:43 -04:00
vce_v1_0.c drm/radeon: avoid kernel segfault in vce when gpu fails to resume 2017-02-08 20:59:16 -05:00
vce_v2_0.c drm/radeon: add header comment for clarification to vce_v2_0_enable_mgcg() 2017-07-14 11:05:55 -04:00