openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/drivers/gpu/drm/radeon
History
Mark Kettenis cef1d00cd5 drm/radeon: fix combios tables on older cards 
Noticed that my old Radeon 7500 hung after printing

   drm: GPU not posted. posting now...

when it wasn't selected as the primary card the BIOS.  Some digging
revealed that it was hanging in combios_parse_mmio_table() while
parsing the ASIC INIT 3 table.  Looking at the BIOS ROM for the card,
it becomes obvious that there is no ASIC INIT 3 table in the BIOS.
The code is just processing random garbage.  No surprise it hangs!

Why do I say that there is no ASIC INIT 3 table is the BIOS?  This
table is found through the MISC INFO table.  The MISC INFO table can
be found at offset 0x5e in the COMBIOS header.  But the header is
smaller than that.  The COMBIOS header starts at offset 0x126.  The
standard PCI Data Structure (the bit that starts with 'PCIR') lives at
offset 0x180.  That means that the COMBIOS header can not be larger
than 0x5a bytes and therefore cannot contain a MISC INFO table.

I looked at a dozen or so BIOS images, some my own, some downloaded from:

    <http://www.techpowerup.com/vgabios/index.php?manufacturer=ATI&page=1>

It is fairly obvious that the size of the COMBIOS header can be found
at offset 0x6 of the header.  Not sure if it is a 16-bit number or
just an 8-bit number, but that doesn't really matter since the tables
seems to be always smaller than 256 bytes.

So I think combios_get_table_offset() should check if the requested
table is present.  This can be done by checking the offset against the
size of the header.  See the diff below.  The diff is against the WIP
OpenBSD codebase that roughly corresponds to Linux 3.8.13 at this
point.  But I don't think this bit of the code changed much since
then.

For what it is worth:

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
 		2013-07-22 15:57:14 -04:00
..
reg_srcs drm/radeon: add WAIT_UNTIL to the non-VM safe regs list for cayman/TN 2013-01-27 22:38:44 -05:00
.gitignore
…
Kconfig drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
Makefile drm/radeon/kms: add dpm support for SI (v7) 2013-06-27 19:40:05 -04:00
ObjectID.h drm/radeon: upstream ObjectID.h updates (v2) 2013-06-26 16:11:34 -04:00
atom-bits.h
…
atom-names.h
…
atom-types.h
…
atom.c drm/radeon: fix endian bugs in atom_allocate_fb_scratch() 2013-05-02 10:01:45 -04:00
atom.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
atombios.h drm/radeon/kms: add dpm support for SI (v7) 2013-06-27 19:40:05 -04:00
atombios_crtc.c drm/radeon/dpm: add helper to calculate vblank time 2013-07-08 17:40:09 -04:00
atombios_dp.c drm/radeon: fix endian issues with DP handling (v3) 2013-07-22 15:57:12 -04:00
atombios_encoders.c drm/radeon/atom: add support for new DVO tables 2013-06-26 16:11:41 -04:00
atombios_i2c.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
avivod.h
…
btc_dpm.c drm/radeon/dpm: implement vblank_too_short callback for btc 2013-07-08 17:40:52 -04:00
btc_dpm.h drm/radeon/dpm/btc: restructure code 2013-06-27 19:16:14 -04:00
btcd.h drm/radeon/kms: add dpm support for btc (v3) 2013-06-27 19:15:44 -04:00
cayman_blit_shaders.c bug.h: add include of it to various implicit C users 2012-02-29 17:15:08 -05:00
cayman_blit_shaders.h drm/radeon/kms: add blit support for cayman (v2) 2011-05-26 09:19:31 +10:00
cik.c drm/radeon: never unpin UVD bo v3 2013-07-14 10:11:30 -04:00
cik_blit_shaders.c drm/radeon: Add CP init for CIK (v7) 2013-06-25 17:50:28 -04:00
cik_blit_shaders.h drm/radeon: Add CP init for CIK (v7) 2013-06-25 17:50:28 -04:00
cik_reg.h drm/radeon/dce8: crtc_set_base updates 2013-06-26 16:11:39 -04:00
cikd.h drm/radeon: add fault decode function for CIK 2013-07-14 10:11:29 -04:00
clearstate_cayman.h drm/radeon: properly set up the RLC on ON/LN/TN (v3) 2013-06-27 10:49:18 -04:00
clearstate_defs.h drm/radeon: properly set up the RLC on ON/LN/TN (v3) 2013-06-27 10:49:18 -04:00
clearstate_evergreen.h drm/radeon: properly set up the RLC on ON/LN/TN (v3) 2013-06-27 10:49:18 -04:00
clearstate_si.h drm/radeon: add clearstate init for verde power gating 2013-06-27 19:16:31 -04:00
cypress_dpm.c drm/radeon/dpm: implement vblank_too_short callback for evergreen 2013-07-08 17:40:42 -04:00
cypress_dpm.h drm/radeon/dpm: add pre/post_set_power_state callback (BTC) 2013-06-27 19:16:19 -04:00
evergreen.c drm/radeon: add a module parameter to disable aspm 2013-07-17 14:52:46 -04:00
evergreen_blit_kms.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
evergreen_blit_shaders.c bug.h: add include of it to various implicit C users 2012-02-29 17:15:08 -05:00
evergreen_blit_shaders.h
…
evergreen_cs.c drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK 2013-03-07 12:58:59 -05:00
evergreen_hdmi.c drm/radeon/hdmi: make sure we have an afmt block assigned 2013-07-14 10:10:53 -04:00
evergreen_reg.h drm/radeon: add accessors of pif_phy indirect register space 2013-06-27 19:16:26 -04:00
evergreen_smc.h drm/radeon/kms: add dpm support for evergreen (v4) 2013-06-27 19:15:22 -04:00
evergreend.h drm/radeon: enable additional power gating features on trinity 2013-06-27 19:16:28 -04:00
mkregtable.c radeon: remove redundant __list_for_each definition from mkregtable.c 2013-07-03 16:07:43 -07:00
ni.c drm/radeon: add fault decode function for cayman/TN (v2) 2013-07-14 10:11:28 -04:00
ni_dpm.c drm/radeon/dpm: implement vblank_too_short callback for cayman 2013-07-08 17:41:01 -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
…
nid.h drm/radeon: add fault decode function for cayman/TN (v2) 2013-07-14 10:11:28 -04:00
nislands_smc.h drm/radeon/kms: add dpm support for cayman (v5) 2013-06-27 19:16:10 -04:00
ppsmc.h drm/radeon/dpm: implement force performance level for TN 2013-07-05 18:10:06 -04:00
r100.c drm/radeon: use radeon device for request firmware 2013-07-14 10:11:27 -04:00
r100_track.h drm/radeon: use common next_reloc function 2013-01-31 16:24:45 -05:00
r100d.h drm/radeon: consolidate redundant macros and constants 2013-01-31 16:24:46 -05:00
r200.c drm/radeon: use common next_reloc function 2013-01-31 16:24:45 -05:00
r300.c radeon: Fix system hang issue when using KMS with older cards 2013-06-03 10:17:54 -04:00
r300_cmdbuf.c drm/radeon: check incoming cliprects pointer 2013-05-13 15:23:34 +10:00
r300_reg.h
…
r300d.h drm/radeon: consolidate redundant macros and constants 2013-01-31 16:24:46 -05:00
r420.c radeon: Fix system hang issue when using KMS with older cards 2013-06-03 10:17:54 -04:00
r420d.h
…
r500_reg.h drm/radeon: disable the crtcs in mc_stop (r5xx-r7xx) (v2) 2013-04-22 10:39:09 -04:00
r520.c radeon: Fix system hang issue when using KMS with older cards 2013-06-03 10:17:54 -04:00
r520d.h
…
r600.c drm/radeon: wait for 3D idle before using CP DMA 2013-07-22 15:57:11 -04:00
r600_audio.c drm/radeon: clean up audio dto programming 2013-04-23 18:03:53 -04:00
r600_blit.c drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
r600_blit_kms.c drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
r600_blit_shaders.c The following text was taken from the original review request: 2012-03-24 10:08:39 -07:00
r600_blit_shaders.h Annotate int2float() as being a pure function. 2012-09-20 13:10:34 -04:00
r600_cp.c drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
r600_cs.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-02-25 16:46:44 -08:00
r600_dpm.c drm/radeon/dpm: add helper to calculate vblank time 2013-07-08 17:40:09 -04:00
r600_dpm.h drm/radeon/dpm: add helper to calculate vblank time 2013-07-08 17:40:09 -04:00
r600_hdmi.c drm/radeon/hdmi: make sure we have an afmt block assigned 2013-07-14 10:10:53 -04:00
r600_reg.h drm/radeon: add indirect accessors for UVD CTX registers 2013-06-27 19:16:30 -04:00
r600d.h drm/radeon: implement bo copy callback using CP DMA (v2) 2013-07-14 10:11:26 -04:00
radeon.h drm/radeon: add a module parameter to disable aspm 2013-07-17 14:52:46 -04:00
radeon_acpi.c drm/radeon: implement apci perf request 2013-06-27 19:16:23 -04:00
radeon_acpi.h drm/radeon: implement handler for ACPI event 2012-09-20 13:10:36 -04:00
radeon_agp.c radeon: add AGPMode 1 quirk for RV250 2012-11-20 11:47:32 -05:00
radeon_asic.c drm/radeon/dpm: add debugfs support for RS780/RS880 (v3) 2013-07-17 16:47:52 -04:00
radeon_asic.h drm/radeon/dpm: add debugfs support for RS780/RS880 (v3) 2013-07-17 16:47:52 -04:00
radeon_atombios.c drm/radeon/dpm/atom: fix broken gcc harder 2013-07-17 16:35:06 -04:00
radeon_atpx_handler.c drm/radeon: properly validate the atpx interface 2013-02-20 08:51:21 -05:00
radeon_benchmark.c drm/radeon/benchmark: allow same domains for dma copy 2013-03-15 18:47:18 -04:00
radeon_bios.c Merge branch 'drm-radeon-sun-hainan' of git://people.freedesktop.org/~airlied/linux 2013-05-21 08:50:57 -07:00
radeon_blit_common.h drm/radeon/kms: common definitions for blit copy code 2012-02-03 09:31:14 +00:00
radeon_clocks.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
radeon_combios.c drm/radeon: fix combios tables on older cards 2013-07-22 15:57:14 -04:00
radeon_connectors.c drm/radeon: Properly handle DDC probe for DP bridges 2013-01-03 15:04:38 -05:00
radeon_cp.c drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
radeon_cs.c drm/ttm: make ttm reservation calls behave like reservation calls 2013-06-28 12:02:20 +10:00
radeon_cursor.c drm/radeon/cik: add hw cursor support (v2) 2013-06-26 16:11:38 -04:00
radeon_device.c drm/radeon: implement simple doorbell page allocator 2013-06-27 10:49:07 -04:00
radeon_display.c drm/radeon/atom: add DCE8 encoder support 2013-06-26 16:11:40 -04:00
radeon_drv.c drm/radeon: add a module parameter to disable aspm 2013-07-17 14:52:46 -04:00
radeon_drv.h drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
radeon_encoders.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
radeon_family.h drm/radeon: add CIK chip families 2013-06-25 17:50:22 -04:00
radeon_fb.c treewide: Fix typo in printk 2013-05-28 12:02:13 +02:00
radeon_fence.c drm/radeon: never unpin UVD bo v3 2013-07-14 10:11:30 -04:00
radeon_gart.c drm/radeon/vm: only align the pt base to 32k 2013-07-22 15:57:11 -04:00
radeon_gem.c radeon: add bo tracking debugfs 2013-05-02 10:09:47 -04:00
radeon_i2c.c drm/radeon: Properly handle DDC probe for DP bridges 2013-01-03 15:04:38 -05:00
radeon_ioc32.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
radeon_irq.c drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
radeon_irq_kms.c radeon kms: do not flush uninitialized hotplug work 2013-07-15 09:37:38 -04:00
radeon_kms.c drm/radeon: add cik tile mode array query 2013-06-27 10:49:12 -04:00
radeon_legacy_crtc.c drm/radeon: Remove superfluous variable 2013-05-20 10:44:57 -04:00
radeon_legacy_encoders.c radeon/kms: force rn50 chip to always report connected on analog output 2013-01-10 17:05:37 -05:00
radeon_legacy_tv.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
radeon_mem.c drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
radeon_mode.h drm/radeon/dpm: add helper to calculate vblank time 2013-07-08 17:40:09 -04:00
radeon_object.c drm/radeon: add missing ttm_eu_backoff_reservation to radeon_bo_list_validate 2013-07-14 10:11:27 -04:00
radeon_object.h drm/radeon: allow selection of alignment in the sub-allocator 2013-07-14 10:11:31 -04:00
radeon_pm.c drm/radeon/dpm: add checks against vblank time 2013-07-08 17:40:20 -04:00
radeon_prime.c drm/radeon: implement unpin function, v2 2013-06-28 11:55:11 +10:00
radeon_reg.h drm/radeon/cik: add hw cursor support (v2) 2013-06-26 16:11:38 -04:00
radeon_ring.c drm/radeon: allow selection of alignment in the sub-allocator 2013-07-14 10:11:31 -04:00
radeon_sa.c drm/radeon: allow selection of alignment in the sub-allocator 2013-07-14 10:11:31 -04:00
radeon_semaphore.c drm/radeon: improve semaphore debugging on lockup 2013-01-15 09:07:13 -05:00
radeon_state.c drm/radeon: Deprecate UMS support v2 2013-01-31 16:24:47 -05:00
radeon_test.c drm/radeon: get rid of ttm_bo_is_reserved usage 2013-06-28 12:04:12 +10:00
radeon_trace.h
…
radeon_trace_points.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
radeon_ttm.c drm/radeon: Fix VRAM size calculation for VRAM >= 4GB 2013-05-20 10:44:57 -04:00
radeon_ucode.h drm/radeon/kms: add dpm support for SI (v7) 2013-06-27 19:40:05 -04:00
radeon_uvd.c drm/radeon: never unpin UVD bo v3 2013-07-14 10:11:30 -04:00
rs100d.h
…
rs400.c radeon: Fix system hang issue when using KMS with older cards 2013-06-03 10:17:54 -04:00
rs400d.h
…
rs600.c radeon: Fix system hang issue when using KMS with older cards 2013-06-03 10:17:54 -04:00
rs600d.h drm/radeon/kms: add register definitions for audio 2012-04-24 09:50:13 +01:00
rs690.c drm/radeon/kms: fix up rs780/rs880 display watermark calc for dpm 2013-06-27 10:49:21 -04:00
rs690d.h drm/radeon: Use direct mapping for fast fb access on RS690 2013-04-09 10:31:31 -04:00
rs780_dpm.c drm/radeon/dpm: add debugfs support for RS780/RS880 (v3) 2013-07-17 16:47:52 -04:00
rs780_dpm.h drm/radeon/kms: add dpm support for rs780/rs880 2013-06-27 10:49:25 -04:00
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: add a module parameter to disable aspm 2013-07-17 14:52:46 -04:00
rv6xx_dpm.h drm/radeon/kms: add dpm support for rv6xx (v3) 2013-06-27 10:50:08 -04:00
rv6xxd.h drm/radeon/kms: add dpm support for rv6xx (v3) 2013-06-27 10:50:08 -04:00
rv200d.h
…
rv250d.h
…
rv350d.h
…
rv515.c drm/radeon/kms: fix up 6xx/7xx display watermark calc for dpm 2013-06-27 10:49:22 -04:00
rv515d.h drm/radeon: consolidate redundant macros and constants 2013-01-31 16:24:46 -05:00
rv730_dpm.c drm/radeon/kms: add dpm support for rv7xx (v4) 2013-06-27 19:14:59 -04:00
rv730d.h drm/radeon/kms: add dpm support for rv7xx (v4) 2013-06-27 19:14:59 -04:00
rv740_dpm.c drm/radeon/dpm/rv7xx: restructure code 2013-06-27 19:16:12 -04:00
rv740d.h drm/radeon/kms: add dpm support for rv7xx (v4) 2013-06-27 19:14:59 -04:00
rv770.c drm/radeon: never unpin UVD bo v3 2013-07-14 10:11:30 -04:00
rv770_dpm.c drm/radeon: add a module parameter to disable aspm 2013-07-17 14:52:46 -04:00
rv770_dpm.h drm/radeon/dpm: implement force performance levels for 7xx/eg/btc 2013-07-05 18:09:30 -04:00
rv770_smc.c drm/radeon/kms: add dpm support for cayman (v5) 2013-06-27 19:16:10 -04:00
rv770_smc.h drm/radeon: add dpm UVD handling for evergreen/btc asics 2013-06-27 19:15:47 -04:00
rv770d.h drm/radeon/dpm: add debugfs support for 7xx/evergreen/btc 2013-07-01 16:08:32 -04:00
si.c drm/radeon: add a module parameter to disable aspm 2013-07-17 14:52:46 -04:00
si_blit_shaders.c The following text was taken from the original review request: 2012-03-24 10:08:39 -07:00
si_blit_shaders.h drm/radeon/kms: add support for CP setup on SI 2012-03-21 06:55:54 +00:00
si_dpm.c drm/radeon/dpm: implement vblank_too_short callback for si 2013-07-08 17:41:11 -04:00
si_dpm.h drm/radeon/kms: add dpm support for SI (v7) 2013-06-27 19:40:05 -04:00
si_reg.h drm/radeon: SI tiling fixes for display 2012-06-20 19:55:56 +01:00
si_smc.c drm/radeon/kms: add dpm support for SI (v7) 2013-06-27 19:40:05 -04:00
sid.h drm/radeon: add fault decode function for SI (v2) 2013-07-14 10:11:29 -04:00
sislands_smc.h drm/radeon/kms: add dpm support for SI (v7) 2013-06-27 19:40:05 -04:00
sumo_dpm.c drm/radeon/dpm/sumo: handle boost states properly when forcing a perf level 2013-07-15 09:37:25 -04:00
sumo_dpm.h drm/radeon/dpm: remove local sumo_get_xclk() 2013-06-27 19:16:22 -04:00
sumo_smc.c drm/radeon/dpm: remove local sumo_get_xclk() 2013-06-27 19:16:22 -04:00
sumod.h drm/radeon: add dpm UVD handling for sumo asics 2013-06-27 19:15:48 -04:00
trinity_dpm.c drm/radeon/dpm: implement force performance level for TN 2013-07-05 18:10:06 -04:00
trinity_dpm.h drm/radeon/dpm: implement force performance level for TN 2013-07-05 18:10:06 -04:00
trinity_smc.c drm/radeon/dpm: implement force performance level for TN 2013-07-05 18:10:06 -04:00
trinityd.h drm/radeon: add dpm UVD handling for TN asics (v2) 2013-06-27 19:15:48 -04:00