Paul Parsons ba250be924 drm/radeon: Fix PCIe lane width calculation ... commit 85e290d92b4b794d0c758c53007eb4248d385386 upstream. 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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-04-24 09:32:09 +02:00
..
reg_srcs
.gitignore
atom-bits.h
atom-names.h
atom-types.h
atom.c
atom.h
atombios.h
atombios_crtc.c	drm/radeon: Ensure vblank interrupt is enabled on DPMS transition to on	2016-12-02 09:09:01 +01:00
atombios_dp.c	drm/radeon: fix atombios on big endian	2017-12-05 11:22:51 +01:00
atombios_encoders.c	drm/radeon: Fix eDP for single-display iMac10,1 (v2)	2017-07-27 15:06:06 -07:00
atombios_i2c.c
avivod.h
btc_dpm.c
btc_dpm.h
btcd.h
cayman_blit_shaders.c	drm: fix trivial typos	2015-10-21 11:35:11 -04:00
cayman_blit_shaders.h
ci_dpm.c	drm/radeon/ci: disable mclk switching for high refresh rates (v2)	2017-07-27 15:06:06 -07:00
ci_dpm.h
ci_smc.c
cik.c	drm/radeon: fix KV harvesting	2018-03-18 11:17:49 +01:00
cik_blit_shaders.c
cik_blit_shaders.h
cik_reg.h
cik_sdma.c	drm/radeon: SDMA fix hibernation (CI GPU family).	2015-06-29 11:21:41 -04:00
cikd.h
clearstate_cayman.h
clearstate_ci.h
clearstate_defs.h
clearstate_evergreen.h
clearstate_si.h
cypress_dpm.c
cypress_dpm.h
dce3_1_afmt.c
dce6_afmt.c	drm/radeon: Add a common function for DFS handling	2016-03-03 15:07:21 -08:00
drm_buffer.c
drm_buffer.h
evergreen.c	drm/radeon: Unbreak HPD handling for r600+	2017-06-07 12:06:00 +02:00
evergreen_blit_shaders.c	drm: fix trivial typos	2015-10-21 11:35:11 -04:00
evergreen_blit_shaders.h
evergreen_cs.c	drm/radeon: remove volatile qualifier	2015-10-02 16:08:30 -04:00
evergreen_dma.c
evergreen_hdmi.c	drm/radeon: fix DP audio support for APU with DCE4.1 display engine	2016-03-03 15:07:21 -08:00
evergreen_reg.h	drm/radeon: fix vertical bars appear on monitor (v2)	2016-05-04 14:48:46 -07:00
evergreen_smc.h
evergreend.h	drm/radeon: fix DP audio support for APU with DCE4.1 display engine	2016-03-03 15:07:21 -08:00
Kconfig
kv_dpm.c
kv_dpm.h
kv_smc.c
Makefile
mkregtable.c
ni.c	drm/radeon: drop register readback in cayman_cp_int_cntl_setup	2016-11-10 16:36:36 +01:00
ni_dma.c
ni_dpm.c
ni_dpm.h
ni_reg.h
nid.h
nislands_smc.h
ObjectID.h
ppsmc.h
pptable.h
r100.c	drm/radeon: Fixup hw vblank counter/ts for new drm_update_vblank_count() (v2)	2015-12-04 13:11:41 -05:00
r100_track.h
r100d.h
r200.c
r300.c
r300_cmdbuf.c
r300_reg.h
r300d.h
r420.c
r420d.h
r500_reg.h
r520.c
r520d.h
r600.c	drm/radeon: Unbreak HPD handling for r600+	2017-06-07 12:06:00 +02:00
r600_blit.c
r600_blit_shaders.c	drm: fix trivial typos	2015-10-21 11:35:11 -04:00
r600_blit_shaders.h
r600_cp.c	drm: Remove __OS_HAS_AGP	2015-09-30 10:44:48 +02:00
r600_cs.c
r600_dma.c
r600_dpm.c	drm/radeon: change vblank_time's calculation method to reduce computational error.	2016-10-31 04:13:58 -06:00
r600_dpm.h
r600_hdmi.c
r600_reg.h
r600d.h
radeon.h	drm/radeon: cleaned up VCO output settings for DP audio	2016-03-03 15:07:21 -08:00
radeon_acpi.c	drm/radeon: Drop unnecessary #include <linux/vga_switcheroo.h>	2015-10-14 16:16:37 -04:00
radeon_acpi.h
radeon_agp.c	add blacklist for thinkpad T40p	2015-11-30 14:44:34 -05:00
radeon_asic.c	drm/radeon: Drop unnecessary #include <linux/vga_switcheroo.h>	2015-10-14 16:16:37 -04:00
radeon_asic.h
radeon_atombios.c	drm/radeon: fix firmware info version checks	2016-08-20 18:09:23 +02:00
radeon_atpx_handler.c	drm/radeon: add a delay after ATPX dGPU power off	2016-08-20 18:09:22 +02:00
radeon_audio.c	drm/radeon: Add a common function for DFS handling	2016-03-03 15:07:21 -08:00
radeon_audio.h	drm/radeon: Add a common function for DFS handling	2016-03-03 15:07:21 -08:00
radeon_benchmark.c
radeon_bios.c	drm/radeon: Drop unnecessary #include <linux/vga_switcheroo.h>	2015-10-14 16:16:37 -04:00
radeon_clocks.c
radeon_combios.c	drm/radeon: add a quirk for Toshiba Satellite L20-183	2017-06-29 12:48:52 +02:00
radeon_connectors.c	drm/radeon: Don't turn off DP sink when disconnected	2018-03-28 18:40:15 +02:00
radeon_cp.c	drm: Remove __OS_HAS_AGP	2015-09-30 10:44:48 +02:00
radeon_cs.c
radeon_cursor.c	drm/radeon: Use mode h/vdisplay fields to hide out of bounds HW cursor	2017-02-23 17:43:09 +01:00
radeon_device.c	drm/radeon: add a PX quirk for another K53TK variant	2017-06-29 12:48:52 +02:00
radeon_display.c	drm/radeon: Fail fb creation from imported dma-bufs.	2018-03-22 09:23:25 +01:00
radeon_dp_auxch.c	Revert "drm/radeon: fix DP link training issue with second 4K monitor"	2016-11-10 16:36:35 +01:00
radeon_dp_mst.c	drm/radeon/mst: fix regression in lane/link handling.	2016-09-15 08:27:47 +02:00
radeon_drv.c	drm/irq: Use unsigned int pipe in public API	2015-10-06 12:57:47 +02:00
radeon_drv.h	drm/irq: Use unsigned int pipe in public API	2015-10-06 12:57:47 +02:00
radeon_encoders.c	drm/radeon: move bl encoder assignment into bl init	2015-10-29 11:13:18 -04:00
radeon_family.h
radeon_fb.c	Revert "drm/radeon: dont switch vt on suspend"	2017-12-05 11:22:51 +01:00
radeon_fence.c
radeon_gart.c	drm/radeon: Don't flush the GART TLB if rdev->gart.ptr == NULL	2015-07-16 12:39:37 -04:00
radeon_gem.c	drm/radeon: fix user ptr race condition	2015-07-16 12:39:37 -04:00
radeon_i2c.c
radeon_ib.c
radeon_ioc32.c
radeon_irq.c	drm/irq: Use unsigned int pipe in public API	2015-10-06 12:57:47 +02:00
radeon_irq_kms.c	drm/radeon: Retry DDC probing on DVI on failure if we got an HPD interrupt	2015-12-04 13:09:12 -05:00
radeon_kfd.c	drm/radeon: Modify kgd_engine_type enum to match CZ	2015-07-20 09:16:47 +03:00
radeon_kfd.h
radeon_kms.c	drm/radeon: Fixup hw vblank counter/ts for new drm_update_vblank_count() (v2)	2015-12-04 13:11:41 -05:00
radeon_legacy_crtc.c	drm/radeon: Ensure vblank interrupt is enabled on DPMS transition to on	2016-12-02 09:09:01 +01:00
radeon_legacy_encoders.c	drm/radeon: move bl encoder assignment into bl init	2015-10-29 11:13:18 -04:00
radeon_legacy_tv.c
radeon_mem.c
radeon_mn.c
radeon_mode.h	drm/radeon: Hide the HW cursor while it's out of bounds	2017-01-09 08:07:46 +01:00
radeon_object.c	radeon: hide pointless #warning when compile testing	2018-04-24 09:32:03 +02:00
radeon_object.h
radeon_pm.c	Revert "drm/radeon/pm: adjust display configuration after powerstate"	2016-03-16 08:43:00 -07:00
radeon_prime.c
radeon_reg.h
radeon_ring.c
radeon_sa.c	drm/radeon: hold reference to fences in radeon_sa_bo_new	2016-03-03 15:07:22 -08:00
radeon_semaphore.c
radeon_state.c
radeon_sync.c
radeon_test.c
radeon_trace.h
radeon_trace_points.c
radeon_ttm.c	drm/radeon: Override fpfn for all VRAM placements in radeon_evict_flags	2017-04-08 09:53:31 +02:00
radeon_ucode.c
radeon_ucode.h
radeon_uvd.c	drm/radeon: adjust tested variable	2018-02-22 15:44:59 +01:00
radeon_vce.c	radeon: Fix VCE IB test on Big-Endian systems	2015-12-09 00:23:56 -05:00
radeon_vm.c	drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr	2016-03-03 15:07:21 -08:00
rs100d.h
rs400.c
rs400d.h
rs600.c	drm/radeon: Retry DDC probing on DVI on failure if we got an HPD interrupt	2015-12-04 13:09:12 -05:00
rs600d.h
rs690.c	drm/radeon: Fixup hw vblank counter/ts for new drm_update_vblank_count() (v2)	2015-12-04 13:11:41 -05:00
rs690d.h
rs780_dpm.c
rs780_dpm.h
rs780d.h
rv6xx_dpm.c
rv6xx_dpm.h
rv6xxd.h
rv200d.h
rv250d.h
rv350d.h
rv515.c
rv515d.h
rv730_dpm.c	drm/radeon: make some dpm errors debug only	2015-11-25 11:28:42 -05:00
rv730d.h
rv740_dpm.c
rv740d.h
rv770.c
rv770_dma.c
rv770_dpm.c	drm/radeon: make some dpm errors debug only	2015-11-25 11:28:42 -05:00
rv770_dpm.h
rv770_smc.c
rv770_smc.h
rv770d.h
si.c	drm/radeon: Unbreak HPD handling for r600+	2017-06-07 12:06:00 +02:00
si_blit_shaders.c
si_blit_shaders.h
si_dma.c
si_dpm.c	drm/radeon: Fix PCIe lane width calculation	2018-04-24 09:32:09 +02:00
si_dpm.h
si_reg.h
si_smc.c
sid.h	drm/radeon: Fix "slow" audio over DP on DCE8+	2016-03-03 15:07:21 -08:00
sislands_smc.h	drm/radeon/si/dpm: fix phase shedding setup	2016-10-31 04:13:58 -06:00
smu7.h
smu7_discrete.h
smu7_fusion.h
sumo_dpm.c
sumo_dpm.h
sumo_smc.c
sumod.h
trinity_dpm.c
trinity_dpm.h
trinity_smc.c
trinityd.h
uvd_v1_0.c
uvd_v2_2.c
uvd_v3_1.c
uvd_v4_2.c
vce_v1_0.c	drm/radeon: properly byte swap vce firmware setup	2016-03-03 15:07:21 -08:00
vce_v2_0.c