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linux/drivers/gpu/drm/radeon
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Lukas Wunner b00e5334ab vga_switcheroo: Add helper for deferred probing 
So far we've got one condition when DRM drivers need to defer probing
on a dual GPU system and it's coded separately into each of the relevant
drivers. As suggested by Daniel Vetter, deduplicate that code in the
drivers and move it to a new vga_switcheroo helper. This yields better
encapsulation of concepts and lets us add further checks in a central
place. (The existing check pertains to pre-retina MacBook Pros and an
additional check is expected to be needed for retinas.)

One might be tempted to check deferred probing conditions in
vga_switcheroo_register_client(), but this is usually called fairly late
during driver load. The GPU is fully brought up and ready for switching
at that point. On boot the ->probe hook is potentially called dozens of
times until it finally succeeds, and each time we'd repeat bringup and
teardown of the GPU, lengthening boot time considerably and cluttering
logfiles. A separate helper is therefore needed which can be called
right at the beginning of the ->probe hook.

Note that amdgpu currently does not call this helper as the AMD GPUs
built into MacBook Pros are only supported by radeon so far.

v2: This helper could eventually be used by audio clients as well,
    so rephrase kerneldoc to refer to "client" instead of "GPU"
    and move the single existing check in an if block specific
    to PCI_CLASS_DISPLAY_VGA devices. Move documentation on
    that check from kerneldoc to a comment. (Daniel Vetter)

v3: Mandate in kerneldoc that registration of client shall only
    happen after calling this helper. (Daniel Vetter)

v4: Rebase on 412c8f7de0 ("drm/radeon: Return -EPROBE_DEFER when
    amdkfd not loaded")

v5: Some Optimus GPUs use PCI_CLASS_DISPLAY_3D, make sure those are
    matched as well. (Emil Velikov)

v6: The if-condition referring to PCI_BASE_CLASS_DISPLAY may be
    considered a functional change. Move to a separate commit to
    keep this a pure refactoring change. (Emil Velikov, Jani Nikula)

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/575885fd440c2b13c3f19ddf44360cfbbff35f50.1464685538.git.lukas@wunner.de
2016-05-31 13:15:57 +02:00
..
reg_srcs drm/radeon: allow geom rings to be setup on r600/r700 (v2) 2014-02-06 12:13:52 +10:00
.gitignore
atom-bits.h
atom-names.h
atom-types.h
atom.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
atom.h drm/radeon: add locking around atombios scratch space usage 2014-11-11 17:22:26 -05:00
atombios_crtc.c drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC 2016-05-04 20:19:03 -04:00
atombios_dp.c Merge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux into drm-next 2016-03-18 07:16:25 +10:00
atombios_encoders.c drm/radeon: make sure vertical front porch is at least 1 2016-05-03 14:50:54 -04:00
atombios_i2c.c drm/radeon: add locking around atombios scratch space usage 2014-11-11 17:22:26 -05:00
atombios.h drm/radeon: fix comment 2015-05-26 15:09:03 +02:00
avivod.h
btc_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
btc_dpm.h Revert "drm/radeon: drop btc_get_max_clock_from_voltage_dependency_table" 2014-10-13 11:34:13 -04:00
btcd.h drm/radeon/dpm: use the driver state for dpm debugfs 2014-02-06 12:22:46 -05:00
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: fix indentation. 2016-03-16 18:08:06 -04:00
ci_dpm.h drm/radeon: bind fan control on CI cards to hwmon interface (v2) 2015-01-22 10:38:48 -05:00
ci_smc.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
cik_blit_shaders.c
cik_blit_shaders.h
cik_reg.h drm/radeon: Add H/W debugger kfd->kgd functions 2015-06-03 11:31:12 +03:00
cik_sdma.c drm/radeon: Avoid double gpu reset by adding a timeout on IB ring tests. 2016-02-10 14:17:15 -05:00
cik.c drm/radeon: allow to force hard GPU reset. 2016-05-02 13:08:54 -04:00
cikd.h drm/radeon: handle more than 10 UVD sessions 2016-05-04 20:19:43 -04:00
clearstate_cayman.h drm/radeon: use NULL instead of zero in clearstate headers 2014-06-02 10:25:07 -04:00
clearstate_ci.h drm/radeon: use NULL instead of zero in clearstate headers 2014-06-02 10:25:07 -04:00
clearstate_defs.h
clearstate_evergreen.h drm/radeon: convert SI,CIK to use sumo_rlc functions 2013-08-30 16:30:08 -04:00
clearstate_si.h drm/radeon: use NULL instead of zero in clearstate headers 2014-06-02 10:25:07 -04:00
cypress_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
cypress_dpm.h
dce3_1_afmt.c drm/radeon: use proper ACR regisiter for DCE3.2 2015-06-01 23:16:22 -04:00
dce6_afmt.c drm/radeon: Add a common function for DFS handling 2016-01-27 12:48:32 -05:00
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: add cayman VM support for append packet. 2016-05-04 20:30:16 -04:00
evergreen_dma.c drm/radeon: split semaphore and sync object handling v2 2014-11-20 13:00:16 -05:00
evergreen_hdmi.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
evergreen_reg.h drm/radeon: fix vertical bars appear on monitor (v2) 2016-04-27 12:27:08 -04:00
evergreen_smc.h drm/radeon/dpm: fix typo in EVERGREEN_SMC_FIRMWARE_HEADER_softRegisters 2014-03-06 16:46:58 -05:00
evergreen.c Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
evergreend.h drm/radeon: add support for SET_APPEND_CNT packet3 (v2) 2016-05-04 20:19:49 -04:00
Kconfig drm/radeon: remove UMS support 2015-12-02 12:45:54 -05:00
kv_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
kv_dpm.h drm/radeon/dpm: handle bapm on kb/kv 2013-09-11 11:44:38 -04:00
kv_smc.c drm/radeon/dpm: handle bapm on kb/kv 2013-09-11 11:44:38 -04:00
Makefile drm/radeon: remove UMS support 2015-12-02 12:45:54 -05:00
mkregtable.c Replace mentions of "list_struct" to "list_head" 2014-11-20 14:45:15 +01:00
ni_dma.c drm/radeon: Remove rdev->gart.pages_addr array 2015-01-22 11:48:03 -05:00
ni_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
ni_dpm.h drm/radeon/dpm: implement vblank_too_short callback for si 2013-07-08 17:41:11 -04:00
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: allow to force hard GPU reset. 2016-05-02 13:08:54 -04:00
nid.h drm/radeon: implement tn_set_vce_clocks 2015-05-26 10:31:21 -04:00
nislands_smc.h
ObjectID.h
ppsmc.h drm/radeon/dpm: add thermal dpm support for CI 2014-11-20 13:00:10 -05:00
pptable.h drm/radeon/dpm: add smc fan control for CI (v2) 2014-11-20 13:00:10 -05:00
r100_track.h
r100.c drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC 2016-05-04 20:19:03 -04:00
r100d.h
r200.c drm/radeon: rename radeon_cs_reloc to radeon_bo_list 2014-12-03 14:26:47 -05:00
r300_reg.h
r300.c drm/radeon: allow to force hard GPU reset. 2016-05-02 13:08:54 -04:00
r300d.h
r420.c drm/radeon: Only flush HDP cache for indirect buffers from userspace 2014-08-18 17:09:44 -04:00
r420d.h
r500_reg.h drm/radeon: Bypass hw lut's for > 8 bpc framebuffer scanout. 2014-06-13 12:22:30 -04:00
r520.c drm/radeon: resume old pm late 2014-03-06 16:46:56 -05:00
r520d.h
r600_blit_shaders.c drm: fix trivial typos 2015-10-21 11:35:11 -04:00
r600_blit_shaders.h drm/radeon/kms: remove r6xx+ blit copy routines 2013-08-30 16:29:57 -04:00
r600_cs.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
r600_dma.c drm/radeon: Avoid double gpu reset by adding a timeout on IB ring tests. 2016-02-10 14:17:15 -05:00
r600_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
r600_dpm.h drm/radeon/dpm: add smc fan control for SI (v2) 2014-11-20 13:00:09 -05:00
r600_hdmi.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
r600_reg.h
r600.c drm/radeon: don't include RADEON_HPD_NONE in HPD IRQ enable bitsets 2016-05-02 15:25:40 -04:00
r600d.h Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-10-14 09:39:08 +02:00
radeon_acpi.c drm/radeon: Drop unnecessary #include <linux/vga_switcheroo.h> 2015-10-14 16:16:37 -04:00
radeon_acpi.h drm/radeon: update radeon acpi header 2016-02-26 14:16:58 -05:00
radeon_agp.c add blacklist for thinkpad T40p 2015-11-30 14:44:34 -05:00
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: fix indentation. 2016-03-16 18:08:06 -04:00
radeon_atpx_handler.c drm/radeon: print a message if ATPX dGPU power control is missing 2016-04-18 11:26:26 -04:00
radeon_audio.c drm/radeon: Add a common function for DFS handling 2016-01-27 12:48:32 -05:00
radeon_audio.h drm/radeon: Add a common function for DFS handling 2016-01-27 12:48:32 -05:00
radeon_benchmark.c drm/radeon: fix the crash in benchmark functions 2015-02-02 11:39:35 -05:00
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 PCI: Remove includes of asm/pci-bridge.h 2016-02-05 16:29:28 -06:00
radeon_connectors.c drm/radeon: fix initial connector audio value 2016-04-14 00:26:29 -04:00
radeon_cs.c drm: remove unused dev variables 2016-05-18 19:16:24 +02:00
radeon_cursor.c drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
radeon_device.c Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
radeon_display.c drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
radeon_dp_auxch.c drm/radeon/native: Send out the full AUX address 2015-08-31 11:38:30 -04:00
radeon_dp_mst.c drm/radeon: use helper for mst connector dpms. 2016-04-06 14:58:42 -04:00
radeon_drv.c vga_switcheroo: Add helper for deferred probing 2016-05-31 13:15:57 +02:00
radeon_drv.h drm/radeon: remove UMS support 2015-12-02 12:45:54 -05:00
radeon_encoders.c drm/radeon: move bl encoder assignment into bl init 2015-10-29 11:13:18 -04:00
radeon_family.h drm/radeon: add Mullins chip family 2014-05-06 12:19:57 +02:00
radeon_fb.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
radeon_fence.c drm/radeon: Avoid double gpu reset by adding a timeout on IB ring tests. 2016-02-10 14:17:15 -05:00
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: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
radeon_i2c.c drm/radeon/radeon_i2c: Remove unused function 2015-01-22 10:38:51 -05:00
radeon_ib.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
radeon_ioc32.c drm: Remove DRM_ARRAY_SIZE() for ARRAY_SIZE() 2014-06-10 09:36:17 +10:00
radeon_irq_kms.c drm: Nuke ->vblank_disable_allowed 2016-05-21 07:03:31 +10:00
radeon_kfd.c drm/radeon: Return -EPROBE_DEFER when amdkfd not loaded 2016-02-27 22:52:40 +02:00
radeon_kfd.h drm/radeon: Return -EPROBE_DEFER when amdkfd not loaded 2016-02-27 22:52:40 +02:00
radeon_kms.c drm/radeon: Drop unnecessary unsigned int < 0 check 2016-01-04 12:30:46 -05:00
radeon_legacy_crtc.c drm/radeon: Only call drm_vblank_on/off between drm_vblank_init/cleanup 2016-04-01 10:09:28 -04:00
radeon_legacy_encoders.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
radeon_legacy_tv.c
radeon_mn.c drm/radeon: fix userptr lockup 2015-05-07 11:00:15 -04:00
radeon_mode.h Merge branch 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-next 2015-12-23 14:15:26 +10:00
radeon_object.c drm/ttm: remove lazy parameter from ttm_bo_wait 2016-05-04 20:21:26 -04:00
radeon_object.h drm/ttm: remove use_ticket parameter from ttm_bo_reserve 2016-05-04 20:21:21 -04:00
radeon_pm.c Merge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux into drm-next 2016-03-18 07:16:25 +10:00
radeon_prime.c drm/radeon: export reservation_object from dmabuf to ttm 2014-10-03 09:19:17 -04:00
radeon_reg.h
radeon_ring.c drm/radeon: always dump the ring content if it's available 2015-03-27 10:17:43 -04:00
radeon_sa.c drm/radeon: hold reference to fences in radeon_sa_bo_new 2016-02-10 14:07:44 -05:00
radeon_semaphore.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
radeon_sync.c drm/radeon: track VM update fences separately 2014-11-20 13:00:17 -05:00
radeon_test.c drm/radeon: fix the crash in test functions 2015-02-02 11:39:36 -05:00
radeon_trace_points.c
radeon_trace.h tracing/drm: Remove unused TRACE_SYSTEM_STRING define 2015-04-07 12:29:23 -04:00
radeon_ttm.c Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
radeon_ucode.c drm/radeon: add new firmware header definitions (v3) 2014-08-05 08:53:22 -04:00
radeon_ucode.h drm/radeon: add new firmware header definitions (v3) 2014-08-05 08:53:22 -04:00
radeon_uvd.c drm/radeon: handle more than 10 UVD sessions 2016-05-04 20:19:43 -04:00
radeon_vce.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
radeon_vm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
radeon.h drm/radeon: handle more than 10 UVD sessions 2016-05-04 20:19:43 -04:00
rs100d.h
rs400.c drm/radeon: Split off gart_get_page_entry ASIC hook from set_page_entry 2015-01-22 11:46:17 -05:00
rs400d.h
rs600.c drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC 2016-05-04 20:19:03 -04:00
rs600d.h
rs690.c drm/radeon: Fixup hw vblank counter/ts for new drm_update_vblank_count() (v2) 2015-12-18 17:29:47 -05:00
rs690d.h
rs780_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
rs780_dpm.h
rs780d.h drm/radeon/dpm: add debugfs support for RS780/RS880 (v3) 2013-07-17 16:47:52 -04:00
rv6xx_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
rv6xx_dpm.h
rv6xxd.h
rv200d.h
rv250d.h
rv350d.h
rv515.c drm/radeon: make sure mode init is complete in bandwidth_update 2014-11-06 15:42:44 -05:00
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 drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
rv740d.h
rv770_dma.c drm/radeon: split semaphore and sync object handling v2 2014-11-20 13:00:16 -05:00
rv770_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
rv770_dpm.h drm/radeon: comment out some currently unused 7xx dpm code 2015-01-22 10:38:58 -05:00
rv770_smc.c drm/radeon: protect concurrent smc register access with a spinlock 2013-09-11 11:44:28 -04:00
rv770_smc.h drm/radeon: protect concurrent smc register access with a spinlock 2013-09-11 11:44:28 -04:00
rv770.c drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC 2016-05-04 20:19:03 -04:00
rv770d.h drm/radeon: disable semaphores for UVD V1 (v2) 2015-05-04 15:03:56 -04:00
si_blit_shaders.c
si_blit_shaders.h
si_dma.c drm/radeon: Remove rdev->gart.pages_addr array 2015-01-22 11:48:03 -05:00
si_dpm.c drm/radeon: add a quirk for a XFX R9 270X 2016-04-18 11:18:35 -04:00
si_dpm.h drm/radeon: bind fan control on SI cards to hwmon interface 2015-01-22 10:38:48 -05:00
si_reg.h
si_smc.c drm/radeon/si: Add support for new ucode format (v3) 2014-08-05 08:53:23 -04:00
si.c drm/radeon: Allow setting shader registers using DMA/COPY packet3 on SI. 2016-05-04 20:23:15 -04:00
sid.h drm/radeon: Fix "slow" audio over DP on DCE8+ 2015-12-18 17:29:46 -05:00
sislands_smc.h drm/radeon/dpm: add smc fan control for SI (v2) 2014-11-20 13:00:09 -05:00
smu7_discrete.h drm/radeon/dpm: add smc fan control for CI (v2) 2014-11-20 13:00:10 -05:00
smu7_fusion.h drm/radeon/kms: add dpm support for KB/KV 2013-08-30 16:30:28 -04:00
smu7.h drm/radeon/kms: add dpm support for KB/KV 2013-08-30 16:30:28 -04:00
sumo_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
sumo_dpm.h drm/radeon: comment out some currently unused sumo dpm code 2015-01-22 10:38:57 -05:00
sumo_smc.c drm/radeon/dpm: make some functions static for sumo 2014-01-07 12:55:50 -05:00
sumod.h
trinity_dpm.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00
trinity_dpm.h drm/radeon/dpm: add bapm callback for trinity 2013-09-11 11:44:39 -04:00
trinity_smc.c drm/radeon/dpm: make some functions static for TN 2014-01-07 12:55:57 -05:00
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 drm/radeon: allow semaphore emission to fail 2013-11-15 15:56:09 -05:00
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: properly byte swap vce firmware setup 2016-01-22 10:50:24 -05:00
vce_v2_0.c drm/radeon: fix indentation. 2016-03-16 18:08:06 -04:00