Samuel Li [Thu, 8 Oct 2015 20:29:40 +0000 (16:29 -0400)]
drm/amdgpu: add GFX support for Stoney (v2)
Stoney is GFX 8.1.
v2: update to latest golden settings
Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Samuel Li [Thu, 8 Oct 2015 21:17:51 +0000 (17:17 -0400)]
drm/amdgpu: add SDMA support for Stoney (v2)
Stoney is SDMA 3.x.
v2: update to latest golden register settings
Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Samuel Li [Thu, 8 Oct 2015 20:29:06 +0000 (16:29 -0400)]
drm/amdgpu: add DCE support for Stoney
Stoney is DCE 11.x.
Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Samuel Li [Thu, 8 Oct 2015 20:28:41 +0000 (16:28 -0400)]
drm/amdgpu: Update SMC/DPM for Stoney
Stoney is SMC 8.x.
Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Samuel Li [Thu, 8 Oct 2015 20:26:41 +0000 (16:26 -0400)]
drm/amdgpu: add GMC support for Stoney
Stoney is GMC 8.x.
Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Samuel Li [Thu, 8 Oct 2015 18:50:27 +0000 (14:50 -0400)]
drm/amdgpu: add Stoney chip family
Stoney is based on Carrizo with some IP upgrades.
Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Chunming Zhou [Fri, 16 Oct 2015 06:06:19 +0000 (14:06 +0800)]
drm/amdgpu: fix the broken vm->mutex V2
fix the vm->mutex and ww_mutex confilcts.
vm->mutex is always token first, then ww_mutex.
V2: remove unneccessary checking for pt bo.
Change-Id: Iea56e183752c02831126d06d2f5b7a474a6e4743
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Junwei Zhang [Sun, 6 Sep 2015 05:55:03 +0000 (13:55 +0800)]
drm/amdgpu: remove the unnecessary parameter adev for amdgpu_fence_wait_any()
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Christian König [Tue, 1 Sep 2015 13:13:53 +0000 (15:13 +0200)]
drm/amdgpu: remove the exclusive lock
Finally getting rid of it.
Signed-off-by: Christian König <christian.koenig@amd.com>
Christian König [Tue, 1 Sep 2015 08:50:26 +0000 (10:50 +0200)]
drm/amdgpu: remove old lockup detection infrastructure
It didn't worked to well anyway.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Geliang Tang [Sun, 18 Oct 2015 15:29:48 +0000 (23:29 +0800)]
drm: fix trivial typos
s/regsiter/register/
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 15 Oct 2015 20:53:27 +0000 (16:53 -0400)]
drm/amdgpu/dce: simplify suspend/resume
We were basically opencoding the same thing in both
hw_init and resume and hw_fini and suspend.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 15 Oct 2015 22:20:45 +0000 (18:20 -0400)]
drm/amdgpu/gfx8: set TC_WB_ACTION_EN in RELEASE_MEM packet
This is the recommended setting from the hw team for newer
versions of the firmware.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Daniel Vetter [Thu, 15 Oct 2015 07:36:34 +0000 (09:36 +0200)]
drm/radeon: Use rdev->gem.mutex to protect hyperz/cmask owners
This removes the last depency of radeon for dev->struct_mutex!
Also the locking scheme for hyperz/cmask owners seems a bit unsound,
there's no protection in the preclose handler (and that never did hold
dev->struct_mutex while being called). So grab the same lock there,
too.
There's also all the checks in the cs checker, but since the overall
design seems to never stall for the previous owner I figured it's ok
if I leave this racy. It was racy even before I touched it after all
too.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Junwei Zhang [Tue, 13 Oct 2015 03:14:23 +0000 (11:14 +0800)]
drm/amdgpu: fix lockup when clean pending fences
The first lockup fence will lock the fence list of scheduler.
Then cancel the delayed workqueues for all clean pending fences
without waiting the workqueues to finish.
Change-Id: I9bec826de1aa49d587b0662f3fb4a95333979429
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Junwei Zhang [Sat, 10 Oct 2015 00:48:42 +0000 (08:48 +0800)]
drm/amdgpu: add timer to fence to detect scheduler lockup
Change-Id: I67e987db0efdca28faa80b332b75571192130d33
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: David Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Christian König [Mon, 28 Sep 2015 10:00:23 +0000 (12:00 +0200)]
drm/amdgpu: add VM CS mapping trace point
Output all VM mappings a command submission uses.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Thu, 10 Sep 2015 12:00:35 +0000 (14:00 +0200)]
drm/amdgpu: add option to clear VM page tables after every submit
This makes it much easier to find when userspace misses to send some buffers.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Mon, 28 Sep 2015 10:31:26 +0000 (12:31 +0200)]
drm/amdgpu: add option to stop on VM fault
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Thu, 10 Sep 2015 13:00:39 +0000 (15:00 +0200)]
drm/amdgpu: only print meaningful VM faults
Port of radeon commit
9b7d786b900baf7c0d1a7e211570aef1cb27590f.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Mon, 28 Sep 2015 10:01:20 +0000 (12:01 +0200)]
drm/amdgpu: also trace already allocated VMIDs
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Lukas Wunner [Mon, 12 Oct 2015 09:54:18 +0000 (11:54 +0200)]
drm/amdgpu: Drop unnecessary #include <linux/vga_switcheroo.h>
This was added to two radeon files even though they don't use any
vga_switcheroo symbols, the amdgpu fork inherited them:
Added to amdgpu_acpi.c by commit
d7a2952f1ade ("drm/radeon: Add
support for the ATIF ACPI method to the radeon driver").
Added to amdgpu_bios.c by commit
6a9ee8af344e ("vga_switcheroo:
initial implementation (v15)").
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Lukas Wunner [Mon, 12 Oct 2015 09:15:17 +0000 (11:15 +0200)]
drm/radeon: Drop unnecessary #include <linux/vga_switcheroo.h>
This was added to three files even though they don't use any
vga_switcheroo symbols:
Added to radeon_acpi.c by commit
d7a2952f1ade ("drm/radeon: Add
support for the ATIF ACPI method to the radeon driver").
Added to radeon_asic.c by commit
0a10c85129c2 ("drm/radeon: create
radeon_asic.c").
Added to radeon_bios.c by commit
6a9ee8af344e ("vga_switcheroo:
initial implementation (v15)").
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 9 Oct 2015 15:38:49 +0000 (11:38 -0400)]
drm/amdgpu: clean up pageflip interrupt handling
Check to make sure we aren't touching a non-existent
display controller and simplify the code.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 20:30:37 +0000 (16:30 -0400)]
drm/amdgpu: rework sdma structures
Rework the sdma structures in the driver to
consolidate all of the sdma info into a single
structure and allow for asics that may have
different numbers of sdma instances.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 04:03:36 +0000 (00:03 -0400)]
drm/amdgpu: unpin cursor BOs on suspend and pin them again on resume
Everything is evicted from VRAM before suspend, so we need to make
sure all BOs are unpinned and re-pinned after resume. Fixes broken
mouse cursor after resume introduced by commit
b9729b17.
Port of radeon commit:
f3cbb17bcf676a2fc6aedebe9fbebd59e550c51a
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 03:46:49 +0000 (23:46 -0400)]
drm/amdgpu/dce8: Fold set_cursor() into show_cursor()
Port of radeon commit:
8991668ab4e26f985a8485719bce5d6d0623a644
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 15:31:58 +0000 (11:31 -0400)]
drm/amdgpu/dce8: Clean up reference counting and pinning of the cursor BOs
Take a GEM reference for and pin the new cursor BO, unpin and drop the
GEM reference for the old cursor BO in dce8 crtc_cursor_set2, and use
amdgpu_crtc->cursor_addr in dce8 set_cursor.
This fixes dce8 cursor_reset accidentally incrementing the cursor BO
pin count, and cleans up the code a little.
Port of radeon commit:
cd404af0c930104462aa91344f07d002cf8248ed
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 03:38:03 +0000 (23:38 -0400)]
drm/amdgpu/dce8: Move hotspot handling out of set_cursor
It's only needed in dce8 crtc_cursor_set2.
Port of radeon commit:
2e007e611bc0a46dfed1547e0228a57f800e703d
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 03:34:57 +0000 (23:34 -0400)]
drm/amdgpu/dce8: Re-show the cursor after a modeset (v2)
Setting a mode seems to clear the cursor registers, so we need to
re-program them to make sure the cursor is visible.
Port of radeon commit:
6d3759fac636028849f3bbec80c4b77e9bfdb1d2
v2: change radeon reference in error message
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 03:26:15 +0000 (23:26 -0400)]
drm/amdgpu/dce8: Use cursor_set2 hook for enabling / disabling the HW cursor
The cursor_set2 hook provides the cursor hotspot position within the
cursor image. When the hotspot position changes, we can adjust the cursor
position such that the hotspot doesn't move on the screen. This prevents
the cursor from appearing to intermittently jump around on the screen
when the position of the hotspot within the cursor image changes.
Port of radeon commits:
78b1a6010b46a69bcd47b723a80f92693f26d17b
3feba08d79c32777a845c3c8a4ab93092bdf6f19
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 03:20:45 +0000 (23:20 -0400)]
drm/amdgpu/dce11: Fold set_cursor() into show_cursor()
Port of radeon commit:
8991668ab4e26f985a8485719bce5d6d0623a644
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 15:28:49 +0000 (11:28 -0400)]
drm/amdgpu/dce11: Clean up reference counting and pinning of the cursor BOs
Take a GEM reference for and pin the new cursor BO, unpin and drop the
GEM reference for the old cursor BO in dce11 crtc_cursor_set2, and use
amdgpu_crtc->cursor_addr in dce11 set_cursor.
This fixes dce11 cursor_reset accidentally incrementing the cursor BO
pin count, and cleans up the code a little.
Port of radeon commit:
cd404af0c930104462aa91344f07d002cf8248ed
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 7 Oct 2015 21:25:54 +0000 (17:25 -0400)]
drm/amdgpu/dce11: Move hotspot handling out of set_cursor
It's only needed in dce11 crtc_cursor_set2.
Port of radeon commit:
2e007e611bc0a46dfed1547e0228a57f800e703d
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 7 Oct 2015 21:22:23 +0000 (17:22 -0400)]
drm/amdgpu/dce11: Re-show the cursor after a modeset (v2)
Setting a mode seems to clear the cursor registers, so we need to
re-program them to make sure the cursor is visible.
Port of radeon commit:
6d3759fac636028849f3bbec80c4b77e9bfdb1d2
v2: change radeon reference in error output
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 7 Oct 2015 21:07:01 +0000 (17:07 -0400)]
drm/amdgpu/dce11: Use cursor_set2 hook for enabling / disabling the HW cursor
The cursor_set2 hook provides the cursor hotspot position within the
cursor image. When the hotspot position changes, we can adjust the cursor
position such that the hotspot doesn't move on the screen. This prevents
the cursor from appearing to intermittently jump around on the screen
when the position of the hotspot within the cursor image changes.
Port of radeon commits:
78b1a6010b46a69bcd47b723a80f92693f26d17b
3feba08d79c32777a845c3c8a4ab93092bdf6f19
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 25 Sep 2015 13:51:59 +0000 (09:51 -0400)]
drm/amdgpu/dce10: Fold set_cursor() into show_cursor()
Port of radeon commit:
8991668ab4e26f985a8485719bce5d6d0623a644
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 8 Oct 2015 15:25:38 +0000 (11:25 -0400)]
drm/amdgpu/dce10: Clean up reference counting and pinning of the cursor BOs
Take a GEM reference for and pin the new cursor BO, unpin and drop the
GEM reference for the old cursor BO in dce10 crtc_cursor_set2, and use
amdgpu_crtc->cursor_addr in dce10 set_cursor.
This fixes dce10 cursor_reset accidentally incrementing the cursor BO
pin count, and cleans up the code a little.
Port of radeon commit:
cd404af0c930104462aa91344f07d002cf8248ed
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 24 Sep 2015 21:46:19 +0000 (17:46 -0400)]
drm/amdgpu/dce10: Move hotspot handling out of set_cursor
It's only needed in dce10 crtc_cursor_set2.
Port of radeon commit:
2e007e611bc0a46dfed1547e0228a57f800e703d
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 24 Sep 2015 21:43:09 +0000 (17:43 -0400)]
drm/amdgpu/dce10: Re-show the cursor after a modeset (v2)
Setting a mode seems to clear the cursor registers, so we need to
re-program them to make sure the cursor is visible.
Port of radeon commit:
6d3759fac636028849f3bbec80c4b77e9bfdb1d2
v2: change radeon reference in error message
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 24 Sep 2015 21:29:44 +0000 (17:29 -0400)]
drm/amdgpu/dce10: Use cursor_set2 hook for enabling / disabling the HW cursor
The cursor_set2 hook provides the cursor hotspot position within the
cursor image. When the hotspot position changes, we can adjust the cursor
position such that the hotspot doesn't move on the screen. This prevents
the cursor from appearing to intermittently jump around on the screen
when the position of the hotspot within the cursor image changes.
Port of radeon commits:
78b1a6010b46a69bcd47b723a80f92693f26d17b
3feba08d79c32777a845c3c8a4ab93092bdf6f19
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 2 Oct 2015 18:26:41 +0000 (14:26 -0400)]
drm/amdgpu/atom: add support for new div32 opcodes (v3)
Better precision than the regular div opcode.
v2: drop 64 bit divide
v3: fix op handling. This actually is a 64 bit divide.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 2 Oct 2015 18:16:11 +0000 (14:16 -0400)]
drm/amdgpu/atom: add support for new mul32 opcodes (v2)
Better precision than the regular mul opcode.
v2: handle big endian properly.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 2 Oct 2015 18:03:26 +0000 (14:03 -0400)]
drm/amdgpu/atom: add support for process ds opcode
Just skips a data section.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 2 Oct 2015 17:53:33 +0000 (13:53 -0400)]
drm/amdgpu/atom: implement debug opcode
Basically a nop.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 30 Sep 2015 16:24:19 +0000 (12:24 -0400)]
drm/amdgpu: disable hw semaphores by default
These are buggy on some asics and not really used anymore
now that the GPU schedular is enabled.
Change-Id: I67182b409d64de308392a15d1a0a15018071dc0b
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Chunming Zhou [Tue, 15 Sep 2015 08:56:10 +0000 (16:56 +0800)]
drm/amdgpu: enable scheduler by default
Change-Id: Idce64f63e8422324996fc5d583d0bc9a5ac60d0c
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Chunming Zhou [Wed, 23 Sep 2015 09:22:43 +0000 (17:22 +0800)]
drm/amdgpu: add TOPDOWN flag to the whole vram
need to decrease visible vram usage by default.
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: monk.liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Chunming Zhou [Tue, 22 Sep 2015 10:20:50 +0000 (18:20 +0800)]
drm/amdgpu: add vram usage into debugfs
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Alex Deucher [Thu, 3 Sep 2015 21:58:06 +0000 (17:58 -0400)]
drm/amdgpu: split gfx8 gpu init into sw and hw parts
Calculate the driver state in sw_init and program the
registers in hw init.
Acked-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Grazvydas Ignotas [Sun, 23 Aug 2015 00:57:38 +0000 (03:57 +0300)]
drm/radeon: remove volatile qualifier
There doesn't seem to be any need to have 'ib' volatile, the code is
not even consistent with it and some places already miss it. As it is
now it's just making gcc produce worse code. If there are special
requirements for that memory, then proper primitives like memory
barriers or accessor functions should be used, but it doesn't look
like that is needed here.
While at it, change the type to match the one in radeon_ib structure.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Grazvydas Ignotas [Sun, 23 Aug 2015 00:57:37 +0000 (03:57 +0300)]
drm/radeon: refactor register check loop
After this patch the register check loop does the same thing as before,
except that now gcc does better job optimizing it: it now sees that
end_reg was already checked against PACKET3_SET_CONTEXT_REG_END and can
optimize REG_SAFE_BM_SIZE comparison out of evergreen_is_safe_reg()
as (PACKET3_SET_CONTEXT_REG_END >> 7) < REG_SAFE_BM_SIZE.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Grazvydas Ignotas [Sun, 23 Aug 2015 00:57:36 +0000 (03:57 +0300)]
drm/radeon: split evergreen_cs_check_reg
evergreen_cs_check_reg() is a large function and gcc doesn't want to
inline it. It has a quick check for reg_safe_bm[] to see if register
needs special handling, which often results in early exit. However
because the function is large, it has a long prologue/epilogue to
save/restore all the callee-save registers which according to perf is
taking significant amount of time. To avoid this, we can reuse
evergreen_is_safe_reg() to do the early check directly in register loop.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Grazvydas Ignotas [Sun, 23 Aug 2015 00:57:35 +0000 (03:57 +0300)]
drm/radeon: simplify register checker
To avoid having to distinguish between CAYMAN or older on every register
check, place a pointer in evergreen_cs_track and use it unconditionally.
Also make use of the fact that both reg_safe_bm[] arrays are of the same
length to remove another CAYMAN check.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Lukas Wunner [Sat, 5 Sep 2015 09:17:35 +0000 (11:17 +0200)]
drm/amdgpu: Spell vga_switcheroo consistently
Currently everyone and their dog has their own favourite spelling
for vga_switcheroo. This makes it hard to grep dmesg for log entries
relating to vga_switcheroo. It also makes it hard to find related
source files in the tree.
vga_switcheroo.c uses pr_fmt "vga_switcheroo". Use that everywhere.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Lukas Wunner [Sat, 5 Sep 2015 09:14:43 +0000 (11:14 +0200)]
drm/radeon: Spell vga_switcheroo consistently
Currently everyone and their dog has their own favourite spelling
for vga_switcheroo. This makes it hard to grep dmesg for log entries
relating to vga_switcheroo. It also makes it hard to find related
source files in the tree.
vga_switcheroo.c uses pr_fmt "vga_switcheroo". Use that everywhere.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Dave Airlie [Fri, 2 Oct 2015 05:41:17 +0000 (15:41 +1000)]
Merge tag 'drm-intel-next-2015-09-11' of git://anongit.freedesktop.org/drm-intel into drm-next
- initialize backlight from VBT as fallback (Jani)
- hpd A support from Ville
- various atomic polish all over (mostly from Maarten)
- first parts of virtualize gpu guest support on bdw from
Zhiyuan Lv
- GuC fixes from Alex
- polish for the chv clocks code (Ville)
- various things all over, as usual
* tag 'drm-intel-next-2015-09-11' of git://anongit.freedesktop.org/drm-intel: (145 commits)
drm/i915: Update DRIVER_DATE to
20150911
drm/i915: Remove one very outdated comment
drm/i915: Use crtc->state for duplication.
drm/i915: Do not handle a null plane state.
drm/i915: Remove legacy plane updates for cursor and sprite planes.
drm/i915: Use atomic state when changing cursor visibility.
drm/i915: Use the atomic state in intel_update_primary_planes.
drm/i915: Use the plane state in intel_crtc_info.
drm/i915: Use atomic plane state in the primary plane update.
drm/i915: add attached connector to hdmi container
drm/i915: don't hard code vlv backlight frequency if unset
drm/i915: initialize backlight max from VBT
drm/i915: use pch backlight override on hsw too
drm/i915/bxt: Clean up bxt_init_clock_gating
drm/i915: Fix cmdparser STORE/LOAD command descriptors
drm/i915: Dump pfit state as hex
drm/i915: access the PP_ON_DELAYS/PP_OFF_DELAYS regs only pre GEN5
drm/i915: access the PP_CONTROL reg only pre GEN5
drm/i915: Refactor common ringbuffer allocation code
drm/i915: use the yesno helper for logging
...
Dave Airlie [Tue, 29 Sep 2015 22:35:45 +0000 (08:35 +1000)]
Merge tag 'topic/drm-misc-2015-09-25' of git://anongit.freedesktop.org/drm-intel into drm-next
Another attempt at drm-misc for 4.4 ...
- better atomic helpers for runtime pm drivers
- atomic fbdev
- dp aux i2c STATUS_UPDATE handling (for short i2c replies from the sink)
- bunch of constify patches
- inital kerneldoc for vga switcheroo
- some vblank code cleanups from Ville and Thierry
- various polish all over
* tag 'topic/drm-misc-2015-09-25' of git://anongit.freedesktop.org/drm-intel: (57 commits)
drm/irq: Add drm_crtc_vblank_count_and_time()
drm/irq: Rename drm_crtc -> crtc
drm: drm_atomic_crtc_get_property should be static
drm/gma500: Remove DP_LINK_STATUS_SIZE redefinition
vga_switcheroo: Set active attribute to false for audio clients
drm/core: Preserve the fb id on close.
drm/core: Preserve the framebuffer after removing it.
drm: Use vblank timestamps to guesstimate how many vblanks were missed
drm: store_vblank() is never called with NULL timestamp
drm: Clean up drm_calc_vbltimestamp_from_scanoutpos() vbl_status
drm: Limit the number of .get_vblank_counter() retries
drm: Pass flags to drm_update_vblank_count()
drm/i915: Fix vblank count variable types
drm: Kill pixeldur_ns
drm: Stop using linedur_ns and pixeldur_ns for vblank timestamps
drm: Move timestamping constants into drm_vblank_crtc
drm/fbdev: Update legacy plane->fb refcounting for atomic restore
drm: fix kernel-doc warnings in drm_crtc.h
vga_switcheroo: Sort headers alphabetically
drm: Spell vga_switcheroo consistently
...
Linus Torvalds [Sun, 27 Sep 2015 11:50:08 +0000 (07:50 -0400)]
Linux 4.3-rc3
Linus Torvalds [Sun, 27 Sep 2015 10:51:42 +0000 (06:51 -0400)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two bugfixes from Andy addressing at least some of the subtle NMI
related wreckage which has been reported by Sasha Levin"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/nmi/64: Fix a paravirt stack-clobbering bug in the NMI code
x86/paravirt: Replace the paravirt nop with a bona fide empty function
Linus Torvalds [Sun, 27 Sep 2015 10:50:23 +0000 (06:50 -0400)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fix from Thomass Gleixner:
"A bugfix for the atmel aic5 irq chip driver which caches the wrong
data and thereby breaking resume"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/atmel-aic5: Use per chip mask caches in mask/unmask()
Linus Torvalds [Sun, 27 Sep 2015 10:48:48 +0000 (06:48 -0400)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"Just two fixes: wire up the new system calls added during the last
merge window, and fix another user access site"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: alignment: fix alignment handling for uaccess changes
ARM: wire up new syscalls
Linus Torvalds [Sun, 27 Sep 2015 10:45:18 +0000 (06:45 -0400)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Our first real batch of fixes this release cycle. Nothing really
concerning, and diffstat is a bit inflated due to some DT contents
moving around on STi platforms.
There's a collection of them here:
- A fixup for a build breakage that hits on arm64 allmodconfig in
QCOM SCM firmware drivers
- MMC fixes for OMAP that had quite a bit of breakage this merge
window.
- Misc build/warning fixes on PXA and OMAP
- A couple of minor fixes for Beagleboard X15 which is now starting
to see a few more users in the wild"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
ARM: sti: dt: adapt DT to fix probe/bind issues in DRM driver
ARM: dts: fix omap2+ address translation for pbias
firmware: qcom: scm: Add function stubs for ARM64
ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
ARM: omap2plus_defconfig: enable GPIO_PCA953X
ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
ARM: dts: am57xx-beagle-x15: Update Phy supplies
ARM: pxa: balloon3: Fix build error
ARM: dts: Fixup model name for HP t410 dts
ARM: dts: DRA7: fix a typo in ethernet
ARM: omap2plus_defconfig: make PCF857x built-in
ARM: dts: Use ti,pbias compatible string for pbias
ARM: OMAP5: Cleanup options for SoC only build
ARM: DRA7: Select missing options for SoC only build
ARM: OMAP2+: board-generic: Remove stale of_irq macros
ARM: OMAP4+: PM: erratum is used by OMAP5 and DRA7 as well
ARM: dts: omap3-igep: Move eth IRQ pinmux to IGEPv2 common dtsi
ARM: dts: am57xx-beagle-x15: Add wakeup irq for mcp79410
ARM: dts: am335x-phycore-som: Fix mpu voltage
...
Linus Torvalds [Sun, 27 Sep 2015 10:42:54 +0000 (06:42 -0400)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
"Four fixes from testing at the recent SMB3 Plugfest including two
important authentication ones (one fixes authentication problems to
some popular servers when clock times differ more than two hours
between systems, the other fixes Kerberos authentication for SMB3)"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
fix encryption error checks on mount
[SMB3] Fix sec=krb5 on smb3 mounts
cifs: use server timestamp for ntlmv2 authentication
disabling oplocks/leases via module parm enable_oplocks broken for SMB3
Olof Johansson [Sun, 27 Sep 2015 05:23:26 +0000 (22:23 -0700)]
Merge tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux into fixes
ARM: pxa: fixes for v4.3
These fixes are mainly regression fixes triggered by irq changes,
common clock framework introduction and sound side-effect of
other platforms.
* tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux:
ARM: pxa: balloon3: Fix build error
ARM: pxa: ssp: Fix build error by removing originally incorrect DT binding
ARM: pxa: fix DFI bus lockups on startup
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sun, 27 Sep 2015 05:22:31 +0000 (22:22 -0700)]
Merge tag 'omap-for-v4.3/fixes-rc2' of git://git./linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.3-rc cycle:
- Two more patches to fix most of the MMC regressions with the
PBIAS regulator changes. At least two MMC driver related issues
still seems to remain for omap3 legacy booting and omap4 duovero.
Note that the dts changes depend on a recent regulator fix, and
are based on the regulator commit now in mainline kernel
- Enable autoidle for am43xx clocks to prevent clocks from staying
always on
- Fix i2c5 pinctrl offsets for omap5-uevm
- Enable PCA953X as that's needed for HDMI to work on omap5
- Update phy supplies for beagle x15 beta board
- Use palmas-usb for on beagle x15 to start using the related
driver that recently got merged
* tag 'omap-for-v4.3/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: fix omap2+ address translation for pbias
ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
ARM: omap2plus_defconfig: enable GPIO_PCA953X
ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
ARM: dts: am57xx-beagle-x15: Update Phy supplies
regulator: pbias: program pbias register offset in pbias driver
ARM: omap2plus_defconfig: Enable MUSB DMA support
ARM: DRA752: Add ID detect for ES2.0
ARM: OMAP3: vc: fix 'or' always true warning
ARM: OMAP2+: Fix booting if no timer parent clock is available
ARM: OMAP2+: omap-device: fix race deferred probe of omap_hsmmc vs omap_device_late_init
Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Torvalds [Sun, 27 Sep 2015 01:05:23 +0000 (21:05 -0400)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- check the return value of platform_get_irq as signed int in xgene.
- skip adf_dev_restore on virtual functions in qat.
- fix double-free with backlogged requests in marvell_cesa"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
hwrng: xgene - fix handling platform_get_irq
crypto: qat - VF should never trigger SBR on PH
crypto: marvell - properly handle CRYPTO_TFM_REQ_MAY_BACKLOG-flagged requests
Linus Torvalds [Sun, 27 Sep 2015 01:02:42 +0000 (21:02 -0400)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
"This includes a iser-target series from Jenny + Sagi @ Mellanox that
addresses the few remaining active I/O shutdown bugs, along with a
patch to support zero-copy for immediate data payloads that gives a
nice performance improvement for small block WRITEs.
Also included are some recent >= v4.2 regression bug-fixes. The most
notable is a RCU conversion regression for SPC-3 PR registrations, and
recent removal of obsolete RFC-3720 markers that introduced a login
regression bug with MSFT iSCSI initiators.
Thanks to everyone who has been testing + reporting bugs for v4.x"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi-target: Avoid OFMarker + IFMarker negotiation
target: Make TCM_WRITE_PROTECT failure honor D_SENSE bit
target: Fix target_sense_desc_format NULL pointer dereference
target: Propigate backend read-only to core_tpg_add_lun
target: Fix PR registration + APTPL RCU conversion regression
iser-target: Skip data copy if all the command data comes as immediate
iser-target: Change the recv buffers posting logic
iser-target: Fix pending connections handling in target stack shutdown sequnce
iser-target: Remove np_ prefix from isert_np members
iser-target: Remove unused variables
iser-target: Put the reference on commands waiting for unsol data
iser-target: remove command with state ISTATE_REMOVE
Linus Torvalds [Sun, 27 Sep 2015 01:00:28 +0000 (21:00 -0400)]
Merge tag 'usb-4.3-rc3' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB driver fixes for 4.3-rc3.
There's the usual assortment of new device ids, combined with xhci and
gadget driver fixes. Full details in the shortlog. All of these have
been in linux-next with no reported problems"
* tag 'usb-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (34 commits)
MAINTAINERS: remove amd5536udc USB gadget driver maintainer
USB: whiteheat: fix potential null-deref at probe
xhci: init command timeout timer earlier to avoid deleting it uninitialized
xhci: change xhci 1.0 only restrictions to support xhci 1.1
usb: xhci: exit early in xhci_setup_device() if we're halted or dying
usb: xhci: stop everything on the first call to xhci_stop
usb: xhci: Clear XHCI_STATE_DYING on start
usb: xhci: lock mutex on xhci_stop
xhci: Move xhci_pme_quirk() behind #ifdef CONFIG_PM
xhci: give command abortion one more chance before killing xhci
usb: Use the USB_SS_MULT() macro to get the burst multiplier.
usb: dwc3: gadget: Fix BUG in RT config
usb: musb: fix cppi channel teardown for isoch transfer
usb: phy: isp1301: Export I2C module alias information
usb: gadget: drop null test before destroy functions
usb: gadget: dummy_hcd: in transfer(), return data sent, not limit
usb: gadget: dummy_hcd: fix rescan logic for transfer
usb: gadget: dummy_hcd: fix unneeded else-if condition
usb: gadget: dummy_hcd: emulate sending zlp in packet logic
usb: musb: dsps: fix polling in device-only mode
...
Linus Torvalds [Sun, 27 Sep 2015 00:58:38 +0000 (20:58 -0400)]
Merge tag 'tty-4.3-rc3' of git://git./linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"Here is one serial driver fix for 4.3-rc3 that resolves a module
loading issue due to splitting up of the 8250 driver into smaller
pieces. It's been in linux-next with no reported problems"
* tag 'tty-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: Add missing module license for 8250_base.ko
Linus Torvalds [Sun, 27 Sep 2015 00:56:50 +0000 (20:56 -0400)]
Merge tag 'staging-4.3-rc3' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some tiny staging driver and documentation fixes for 4.3-rc3.
All of these resolve reported issues that people have found and have
been in the linux-next tree for a while with no problems"
* tag 'staging-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
MAINTAINERS: Update email address for Martyn Welch
staging: ion: fix corruption of ion_import_dma_buf
staging: dgap: Remove myself from the MAINTAINERS file
staging: most: Add dependency to HAS_IOMEM
staging: unisys: remove reference of visorutil
staging: unisys: visornic: handle error return from device registration
staging: unisys: stop device registration before visorbus registration
staging: unisys: visorbus: Unregister driver on error
staging: unisys: visornic: Fix receive bytes statistics
staging: unisys: unregister netdev when create debugfs fails
staging: fbtft: replace master->setup() with spi_setup()
staging: fbtft: fix 9-bit SPI support detection
staging/lustre: change Lustre URLs and mailing list
staging/android: Update ION TODO per LPC discussion
Staging: most: MOST and MOSTCORE should depend on HAS_DMA
staging: most: fix HDM_USB dependencies and build errors
Linus Torvalds [Sun, 27 Sep 2015 00:54:53 +0000 (20:54 -0400)]
Merge tag 'driver-core-4.3-rc3' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is one driver core fix for 4.3-rc3 that resolves a reported oops"
* tag 'driver-core-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
cpu/cacheinfo: Fix teardown path
Linus Torvalds [Sun, 27 Sep 2015 00:53:15 +0000 (20:53 -0400)]
Merge tag 'char-misc-4.3-rc3' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here's some tiny char and misc driver fixes that resolve some reported
errors for 4.3-rc3.
All of these have been in linux-next with no problems for a while"
* tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
extcon: Fix attached value returned by is_extcon_changed
Drivers: hv: vmbus: fix init_vp_index() for reloading hv_netvsc
mei: fix debugfs files leak on error path
thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2 controller
Linus Torvalds [Sat, 26 Sep 2015 10:01:33 +0000 (06:01 -0400)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) When we run a tap on netlink sockets, we have to copy mmap'd SKBs
instead of cloning them. From Daniel Borkmann.
2) When converting classical BPF into eBPF, fix the setting of the
source reg to BPF_REG_X. From Tycho Andersen.
3) Fix igmpv3/mldv2 report parsing in the bridge multicast code, from
Linus Lussing.
4) Fix dst refcounting for ipv6 tunnels, from Martin KaFai Lau.
5) Set NLM_F_REPLACE flag properly when replacing ipv6 routes, from
Roopa Prabhu.
6) Add some new cxgb4 PCI device IDs, from Hariprasad Shenai.
7) Fix headroom tests and SKB leaks in ipv6 fragmentation code, from
Florian Westphal.
8) Check DMA mapping errors in bna driver, from Ivan Vecera.
9) Several 8139cp bug fixes (dev_kfree_skb_any in interrupt context,
misclearing of interrupt status in TX timeout handler, etc.) from
David Woodhouse.
10) In tipc, reset SKB header pointer after skb_linearize(), from Erik
Hugne.
11) Fix autobind races et al. in netlink code, from Herbert Xu with
help from Tejun Heo and others.
12) Missing SET_NETDEV_DEV in sunvnet driver, from Sowmini Varadhan.
13) Fix various races in timewait timer and reqsk_queue_hadh_req, from
Eric Dumazet.
14) Fix array overruns in mac80211, from Johannes Berg and Dan
Carpenter.
15) Fix data race in rhashtable_rehash_one(), from Dmitriy Vyukov.
16) Fix race between poll_one_napi and napi_disable, from Neil Horman.
17) Fix byte order in geneve tunnel port config, from John W Linville.
18) Fix handling of ARP replies over lightweight tunnels, from Jiri
Benc.
19) We can loop when fib rule dumps cross multiple SKBs, fix from Wilson
Kok and Roopa Prabhu.
20) Several reference count handling bug fixes in the PHY/MDIO layer
from Russel King.
21) Fix lockdep splat in ppp_dev_uninit(), from Guillaume Nault.
22) Fix crash in icmp_route_lookup(), from David Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
net: Fix panic in icmp_route_lookup
net: update docbook comment for __mdiobus_register()
ppp: fix lockdep splat in ppp_dev_uninit()
net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected
phy: marvell: add link partner advertised modes
net: fix net_device refcounting
phy: add phy_device_remove()
phy: fixed-phy: properly validate phy in fixed_phy_update_state()
net: fix phy refcounting in a bunch of drivers
of_mdio: fix MDIO phy device refcounting
phy: add proper phy struct device refcounting
phy: fix mdiobus module safety
net: dsa: fix of_mdio_find_bus() device refcount leak
phy: fix of_mdio_find_bus() device refcount leak
ip6_tunnel: Reduce log level in ip6_tnl_err() to debug
ip6_gre: Reduce log level in ip6gre_err() to debug
fib_rules: fix fib rule dumps across multiple skbs
bnx2x: byte swap rss_key to comply to Toeplitz specs
net: revert "net_sched: move tp->root allocation into fw_init()"
lwtunnel: remove source and destination UDP port config option
...
David Ahern [Thu, 24 Sep 2015 21:31:29 +0000 (15:31 -0600)]
net: Fix panic in icmp_route_lookup
Andrey reported a panic:
[ 7249.865507] BUG: unable to handle kernel pointer dereference at
000000b4
[ 7249.865559] IP: [<
c16afeca>] icmp_route_lookup+0xaa/0x320
[ 7249.865598] *pdpt =
0000000030f7f001 *pde =
0000000000000000
[ 7249.865637] Oops: 0000 [#1]
...
[ 7249.866811] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
4.3.0-999-generic #
201509220155
[ 7249.866876] Hardware name: MSI MS-7250/MS-7250, BIOS 080014 08/02/2006
[ 7249.866916] task:
c1a5ab00 ti:
c1a52000 task.ti:
c1a52000
[ 7249.866949] EIP: 0060:[<
c16afeca>] EFLAGS:
00210246 CPU: 0
[ 7249.866981] EIP is at icmp_route_lookup+0xaa/0x320
[ 7249.867012] EAX:
00000000 EBX:
f483ba48 ECX:
00000000 EDX:
f2e18a00
[ 7249.867045] ESI:
000000c0 EDI:
f483ba70 EBP:
f483b9ec ESP:
f483b974
[ 7249.867077] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 7249.867108] CR0:
8005003b CR2:
000000b4 CR3:
36ee07c0 CR4:
000006f0
[ 7249.867141] Stack:
[ 7249.867165]
320310ee 00000000 00000042 320310ee 00000000 c1aeca00
f3920240 f0c69180
[ 7249.867268]
f483ba04 f855058b a89b66cd f483ba44 f8962f4b 00000000
e659266c f483ba54
[ 7249.867361]
8004753c f483ba5c f8962f4b f2031140 000003c1 ffbd8fa0
c16b0e00 00000064
[ 7249.867448] Call Trace:
[ 7249.867494] [<
f855058b>] ? e1000_xmit_frame+0x87b/0xdc0 [e1000e]
[ 7249.867534] [<
f8962f4b>] ? tcp_in_window+0xeb/0xb10 [nf_conntrack]
[ 7249.867576] [<
f8962f4b>] ? tcp_in_window+0xeb/0xb10 [nf_conntrack]
[ 7249.867615] [<
c16b0e00>] ? icmp_send+0xa0/0x380
[ 7249.867648] [<
c16b102f>] icmp_send+0x2cf/0x380
[ 7249.867681] [<
f89c8126>] nf_send_unreach+0xa6/0xc0 [nf_reject_ipv4]
[ 7249.867714] [<
f89cd0da>] reject_tg+0x7a/0x9f [ipt_REJECT]
[ 7249.867746] [<
f88c29a7>] ipt_do_table+0x317/0x70c [ip_tables]
[ 7249.867780] [<
f895e0a6>] ? __nf_conntrack_find_get+0x166/0x3b0
[nf_conntrack]
[ 7249.867838] [<
f895eea8>] ? nf_conntrack_in+0x398/0x600 [nf_conntrack]
[ 7249.867889] [<
f84c0035>] iptable_filter_hook+0x35/0x80 [iptable_filter]
[ 7249.867933] [<
c16776a1>] nf_iterate+0x71/0x80
[ 7249.867970] [<
c1677715>] nf_hook_slow+0x65/0xc0
[ 7249.868002] [<
c1681811>] __ip_local_out_sk+0xc1/0xd0
[ 7249.868034] [<
c1680f30>] ? ip_forward_options+0x1a0/0x1a0
[ 7249.868066] [<
c1681836>] ip_local_out_sk+0x16/0x30
[ 7249.868097] [<
c1684054>] ip_send_skb+0x14/0x80
[ 7249.868129] [<
c16840f4>] ip_push_pending_frames+0x34/0x40
[ 7249.868163] [<
c16844a2>] ip_send_unicast_reply+0x282/0x310
[ 7249.868196] [<
c16a0863>] tcp_v4_send_reset+0x1b3/0x380
[ 7249.868227] [<
c16a1b63>] tcp_v4_rcv+0x323/0x990
[ 7249.868257] [<
c16776a1>] ? nf_iterate+0x71/0x80
[ 7249.868289] [<
c167dc2b>] ip_local_deliver_finish+0x8b/0x230
[ 7249.868322] [<
c167df4c>] ip_local_deliver+0x4c/0xa0
[ 7249.868353] [<
c167dba0>] ? ip_rcv_finish+0x390/0x390
[ 7249.868384] [<
c167d88c>] ip_rcv_finish+0x7c/0x390
[ 7249.868415] [<
c167e280>] ip_rcv+0x2e0/0x420
...
Prior to the VRF change the oif was not set in the flow struct, so the
VRF support should really have only added the vrf_master_ifindex lookup.
Fixes: 613d09b30f8b ("net: Use VRF device index for lookups on TX")
Cc: Andrey Melnikov <temnota.am@gmail.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Fri, 25 Sep 2015 10:56:56 +0000 (11:56 +0100)]
net: update docbook comment for __mdiobus_register()
Update the docbook comment for __mdiobus_register() to include the new
module owner argument. This resolves a warning found by the 0-day
builder.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Greg Kroah-Hartman [Sat, 26 Sep 2015 03:45:27 +0000 (20:45 -0700)]
MAINTAINERS: remove amd5536udc USB gadget driver maintainer
Thomas can no longer work on the driver, so he asked me to mark the
MAINTAINER entry as "Orphan" with the hope that someone else would
someday pick it up.
Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Fri, 25 Sep 2015 23:20:55 +0000 (16:20 -0700)]
Merge branch 'for-4.3-fixes' of git://git./linux/kernel/git/tj/cgroup
Pull another cgroup fix from Tejun Heo:
"The cgroup writeback support got inadvertently enabled for traditional
hierarchies revealing two regressions which are currently being worked
on. It shouldn't have been enabled on traditional hierarchies, so
disable it on them. This is enough to make the regressions go away
for people who aren't experimenting with cgroup"
* 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup, writeback: don't enable cgroup writeback on traditional hierarchies
Guillaume Nault [Thu, 24 Sep 2015 10:54:01 +0000 (12:54 +0200)]
ppp: fix lockdep splat in ppp_dev_uninit()
ppp_dev_uninit() locks all_ppp_mutex while under rtnl mutex protection.
ppp_create_interface() must then lock these mutexes in that same order
to avoid possible deadlock.
[ 120.880011] ======================================================
[ 120.880011] [ INFO: possible circular locking dependency detected ]
[ 120.880011] 4.2.0 #1 Not tainted
[ 120.880011] -------------------------------------------------------
[ 120.880011] ppp-apitest/15827 is trying to acquire lock:
[ 120.880011] (&pn->all_ppp_mutex){+.+.+.}, at: [<
ffffffffa0145f56>] ppp_dev_uninit+0x64/0xb0 [ppp_generic]
[ 120.880011]
[ 120.880011] but task is already holding lock:
[ 120.880011] (rtnl_mutex){+.+.+.}, at: [<
ffffffff812e4255>] rtnl_lock+0x12/0x14
[ 120.880011]
[ 120.880011] which lock already depends on the new lock.
[ 120.880011]
[ 120.880011]
[ 120.880011] the existing dependency chain (in reverse order) is:
[ 120.880011]
[ 120.880011] -> #1 (rtnl_mutex){+.+.+.}:
[ 120.880011] [<
ffffffff81073a6f>] lock_acquire+0xcf/0x10e
[ 120.880011] [<
ffffffff813ab18a>] mutex_lock_nested+0x56/0x341
[ 120.880011] [<
ffffffff812e4255>] rtnl_lock+0x12/0x14
[ 120.880011] [<
ffffffff812d9d94>] register_netdev+0x11/0x27
[ 120.880011] [<
ffffffffa0147b17>] ppp_ioctl+0x289/0xc98 [ppp_generic]
[ 120.880011] [<
ffffffff8113b367>] do_vfs_ioctl+0x4ea/0x532
[ 120.880011] [<
ffffffff8113b3fd>] SyS_ioctl+0x4e/0x7d
[ 120.880011] [<
ffffffff813ad7d7>] entry_SYSCALL_64_fastpath+0x12/0x6f
[ 120.880011]
[ 120.880011] -> #0 (&pn->all_ppp_mutex){+.+.+.}:
[ 120.880011] [<
ffffffff8107334e>] __lock_acquire+0xb07/0xe76
[ 120.880011] [<
ffffffff81073a6f>] lock_acquire+0xcf/0x10e
[ 120.880011] [<
ffffffff813ab18a>] mutex_lock_nested+0x56/0x341
[ 120.880011] [<
ffffffffa0145f56>] ppp_dev_uninit+0x64/0xb0 [ppp_generic]
[ 120.880011] [<
ffffffff812d5263>] rollback_registered_many+0x19e/0x252
[ 120.880011] [<
ffffffff812d5381>] rollback_registered+0x29/0x38
[ 120.880011] [<
ffffffff812d53fa>] unregister_netdevice_queue+0x6a/0x77
[ 120.880011] [<
ffffffffa0146a94>] ppp_release+0x42/0x79 [ppp_generic]
[ 120.880011] [<
ffffffff8112d9f6>] __fput+0xec/0x192
[ 120.880011] [<
ffffffff8112dacc>] ____fput+0x9/0xb
[ 120.880011] [<
ffffffff8105447a>] task_work_run+0x66/0x80
[ 120.880011] [<
ffffffff81001801>] prepare_exit_to_usermode+0x8c/0xa7
[ 120.880011] [<
ffffffff81001900>] syscall_return_slowpath+0xe4/0x104
[ 120.880011] [<
ffffffff813ad931>] int_ret_from_sys_call+0x25/0x9f
[ 120.880011]
[ 120.880011] other info that might help us debug this:
[ 120.880011]
[ 120.880011] Possible unsafe locking scenario:
[ 120.880011]
[ 120.880011] CPU0 CPU1
[ 120.880011] ---- ----
[ 120.880011] lock(rtnl_mutex);
[ 120.880011] lock(&pn->all_ppp_mutex);
[ 120.880011] lock(rtnl_mutex);
[ 120.880011] lock(&pn->all_ppp_mutex);
[ 120.880011]
[ 120.880011] *** DEADLOCK ***
Fixes: 8cb775bc0a34 ("ppp: fix device unregistration upon netns deletion")
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sudip Mukherjee [Thu, 24 Sep 2015 10:16:53 +0000 (15:46 +0530)]
net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected
The builds of allmodconfig of avr32 is failing with:
drivers/net/ethernet/via/via-rhine.c:1098:2: error: implicit declaration
of function 'pci_iomap' [-Werror=implicit-function-declaration]
drivers/net/ethernet/via/via-rhine.c:1119:2: error: implicit declaration
of function 'pci_iounmap' [-Werror=implicit-function-declaration]
The generic empty pci_iomap and pci_iounmap is used only if CONFIG_PCI
is not defined and CONFIG_GENERIC_PCI_IOMAP is defined.
Add GENERIC_PCI_IOMAP in the dependency list for VIA_RHINE as we are
getting build failure when CONFIG_PCI and CONFIG_GENERIC_PCI_IOMAP both
are not defined.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Wed, 23 Sep 2015 23:07:17 +0000 (00:07 +0100)]
phy: marvell: add link partner advertised modes
Read the standard link partner advertisment registers and store it in
phydev->lp_advertising, so ethtool can report this information to
userspace via ethtool. Zero it as per genphy if autonegotiation is
disabled. Tested with a Marvell
88E1512 PHY.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 25 Sep 2015 19:08:41 +0000 (12:08 -0700)]
Merge branch 'for-linus-4.3' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"This is an assorted set I've been queuing up:
Jeff Mahoney tracked down a tricky one where we ended up starting IO
on the wrong mapping for special files in btrfs_evict_inode. A few
people reported this one on the list.
Filipe found (and provided a test for) a difficult bug in reading
compressed extents, and Josef fixed up some quota record keeping with
snapshot deletion. Chandan killed off an accounting bug during DIO
that lead to WARN_ONs as we freed inodes"
* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: keep dropped roots in cache until transaction commit
Btrfs: Direct I/O: Fix space accounting
btrfs: skip waiting on ordered range for special files
Btrfs: fix read corruption of compressed and shared extents
Btrfs: remove unnecessary locking of cleaner_mutex to avoid deadlock
Btrfs: don't initialize a space info as full to prevent ENOSPC
Linus Torvalds [Fri, 25 Sep 2015 18:33:52 +0000 (11:33 -0700)]
Merge tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable patches:
- fix v4.2 SEEK on files over 2 gigs
- Fix a layout segment reference leak when pNFS I/O falls back to inband I/O.
- Fix recovery of recalled read delegations
Bugfixes:
- Fix a case where NFSv4 fails to send CLOSE after a server reboot
- Fix sunrpc to wait for connections to complete before retrying
- Fix sunrpc races between transport connect/disconnect and shutdown
- Fix an infinite loop when layoutget fail with BAD_STATEID
- nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
- Fix a bogus WARN_ON_ONCE() in O_DIRECT when layout commit_through_mds is set
- Fix layoutreturn/close ordering issues"
* tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS41: make close wait for layoutreturn
NFS: Skip checking ds_cinfo.buckets when lseg's commit_through_mds is set
NFSv4.x/pnfs: Don't try to recover stateids twice in layoutget
NFSv4: Recovery of recalled read delegations is broken
NFS: Fix an infinite loop when layoutget fail with BAD_STATEID
NFS: Do cleanup before resetting pageio read/write to mds
SUNRPC: xs_sock_mark_closed() does not need to trigger socket autoclose
SUNRPC: Lock the transport layer on shutdown
nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
SUNRPC: Ensure that we wait for connections to complete before retrying
SUNRPC: drop null test before destroy functions
nfs: fix v4.2 SEEK on files over 2 gigs
SUNRPC: Fix races between socket connection and destroy code
nfs: fix pg_test page count calculation
Failing to send a CLOSE if file is opened WRONLY and server reboots on a 4.x mount
Linus Torvalds [Fri, 25 Sep 2015 18:25:30 +0000 (11:25 -0700)]
Merge tag 'sound-4.3-rc3' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This ended up with a larger set of fixes than wished, unfortunately.
As diffstat shows, the majority of changes are for various ASoC
drivers (Realtek, Wolfson codec drivers, etc), in addition to a couple
of HD-audio regression fixes. All these are reasonably small and
nothing to scare much"
* tag 'sound-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
ALSA: hda - Disable power_save_node for Thinkpads
ALSA: hda/tegra - async probe for avoiding module loading deadlock
ASoC: rt5645: Prevent the pop sound in case of playback and the jack is plugging
ASoC: rt5645: Increase the delay time to remove the pop sound
ASoC: rt5645: Use the type SOC_DAPM_SINGLE_AUTODISABLE to prevent the weird sound in runtime of power up
ASoC: pxa: pxa2xx-ac97: fix dma requestor lines
MAINTAINERS: Update website and git repo for Wolfson Microelectronics
ASoC: fsl_ssi: Fix checking of dai format for AC97 mode
ASoC: wm0010: fix error path
ASoC: wm0010: fix memory leak
ASoC: wm8960: correct the max register value of mic boost pga
ASoC: wm8962: remove 64k sample rate support
ASoC: davinci-mcasp: Fix devm_kasprintf format string
ASoC: fix broken pxa SoC support
ASoC: davinci-mcasp: Set .symmetric_rates = 1 in snd_soc_dai_driver
ASoC: au1x: psc-i2s: Fix unused variable 'ret' warning
ASoC: SPEAr: Make SND_SPEAR_SOC select SND_SOC_GENERIC_DMAENGINE_PCM
ASoC: mediatek: Increase periods_min in capture
ASoC: davinci-mcasp: Revise the FIFO threshold calculation
ASoC: wm8960: correct gain value for input PGA and add microphone PGA
...
Linus Torvalds [Fri, 25 Sep 2015 18:16:53 +0000 (11:16 -0700)]
Merge tag 'pci-v4.3-fixes-1' of git://git./linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"These are fixes for things we merged for v4.3 (VPD, MSI, and bridge
window management), and a new Renesas R8A7794 SoC device ID.
Details:
Resource management:
- Revert pci_read_bridge_bases() unification (Bjorn Helgaas)
- Clear IORESOURCE_UNSET when clipping a bridge window (Bjorn
Helgaas)
MSI:
- Fix MSI IRQ domains for VFs on virtual buses (Alex Williamson)
Renesas R-Car host bridge driver:
- Add R8A7794 support (Sergei Shtylyov)
Miscellaneous:
- Fix devfn for VPD access through function 0 (Alex Williamson)
- Use function 0 VPD only for identical functions (Alex Williamson)"
* tag 'pci-v4.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: rcar: Add R8A7794 support
PCI: Use function 0 VPD for identical functions, regular VPD for others
PCI: Fix devfn for VPD access through function 0
PCI/MSI: Fix MSI IRQ domains for VFs on virtual buses
PCI: Clear IORESOURCE_UNSET when clipping a bridge window
PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code"
Linus Torvalds [Fri, 25 Sep 2015 17:51:40 +0000 (10:51 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"AMD fixes for bugs introduced in the 4.2 merge window, and a few PPC
bug fixes too"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: disable halt_poll_ns as default for s390x
KVM: x86: fix off-by-one in reserved bits check
KVM: x86: use correct page table format to check nested page table reserved bits
KVM: svm: do not call kvm_set_cr0 from init_vmcb
KVM: x86: trap AMD MSRs for the TSeg base and mask
KVM: PPC: Book3S: Take the kvm->srcu lock in kvmppc_h_logical_ci_load/store()
KVM: PPC: Book3S HV: Pass the correct trap argument to kvmhv_commence_exit
KVM: PPC: Book3S HV: Fix handling of interrupted VCPUs
kvm: svm: reset mmu on VCPU reset
Linus Torvalds [Fri, 25 Sep 2015 17:11:26 +0000 (10:11 -0700)]
Merge tag 'powerpc-4.3-3' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Wire up sys_membarrier()
- cxl: Fix lockdep warning while creating afu_err_buff from Vaibhav
* tag 'powerpc-4.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
cxl: Fix lockdep warning while creating afu_err_buff attribute
powerpc: Wire up sys_membarrier()
David Hildenbrand [Fri, 18 Sep 2015 10:34:53 +0000 (12:34 +0200)]
KVM: disable halt_poll_ns as default for s390x
We observed some performance degradation on s390x with dynamic
halt polling. Until we can provide a proper fix, let's enable
halt_poll_ns as default only for supported architectures.
Architectures are now free to set their own halt_poll_ns
default value.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 22 Sep 2015 08:15:59 +0000 (10:15 +0200)]
KVM: x86: fix off-by-one in reserved bits check
29ecd6601904 ("KVM: x86: avoid uninitialized variable warning",
2015-09-06) introduced a not-so-subtle problem, which probably
escaped review because it was not part of the patch context.
Before the patch, leaf was always equal to iterator.level. After,
it is equal to iterator.level - 1 in the call to is_shadow_zero_bits_set,
and when is_shadow_zero_bits_set does another "-1" the check on
reserved bits becomes incorrect. Using "iterator.level" in the call
fixes this call trace:
WARNING: CPU: 2 PID: 17000 at arch/x86/kvm/mmu.c:3385 handle_mmio_page_fault.part.93+0x1a/0x20 [kvm]()
Modules linked in: tun sha256_ssse3 sha256_generic drbg binfmt_misc ipv6 vfat fat fuse dm_crypt dm_mod kvm_amd kvm crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd fam15h_power amd64_edac_mod k10temp edac_core amdkfd amd_iommu_v2 radeon acpi_cpufreq
[...]
Call Trace:
dump_stack+0x4e/0x84
warn_slowpath_common+0x95/0xe0
warn_slowpath_null+0x1a/0x20
handle_mmio_page_fault.part.93+0x1a/0x20 [kvm]
tdp_page_fault+0x231/0x290 [kvm]
? emulator_pio_in_out+0x6e/0xf0 [kvm]
kvm_mmu_page_fault+0x36/0x240 [kvm]
? svm_set_cr0+0x95/0xc0 [kvm_amd]
pf_interception+0xde/0x1d0 [kvm_amd]
handle_exit+0x181/0xa70 [kvm_amd]
? kvm_arch_vcpu_ioctl_run+0x68b/0x1730 [kvm]
kvm_arch_vcpu_ioctl_run+0x6f6/0x1730 [kvm]
? kvm_arch_vcpu_ioctl_run+0x68b/0x1730 [kvm]
? preempt_count_sub+0x9b/0xf0
? mutex_lock_killable_nested+0x26f/0x490
? preempt_count_sub+0x9b/0xf0
kvm_vcpu_ioctl+0x358/0x710 [kvm]
? __fget+0x5/0x210
? __fget+0x101/0x210
do_vfs_ioctl+0x2f4/0x560
? __fget_light+0x29/0x90
SyS_ioctl+0x4c/0x90
entry_SYSCALL_64_fastpath+0x16/0x73
---[ end trace
37901c8686d84de6 ]---
Reported-by: Borislav Petkov <bp@alien8.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 22 Sep 2015 21:02:14 +0000 (23:02 +0200)]
KVM: x86: use correct page table format to check nested page table reserved bits
Intel CPUID on AMD host or vice versa is a weird case, but it can
happen. Handle it by checking the host CPU vendor instead of the
guest's in reset_tdp_shadow_zero_bits_mask. For speed, the
check uses the fact that Intel EPT has an X (executable) bit while
AMD NPT has NX.
Reported-by: Borislav Petkov <bp@alien8.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 21 Sep 2015 05:46:55 +0000 (07:46 +0200)]
KVM: svm: do not call kvm_set_cr0 from init_vmcb
kvm_set_cr0 may want to call kvm_zap_gfn_range and thus access the
memslots array (SRCU protected). Using a mini SRCU critical section
is ugly, and adding it to kvm_arch_vcpu_create doesn't work because
the VMX vcpu_create callback calls synchronize_srcu.
Fixes this lockdep splat:
===============================
[ INFO: suspicious RCU usage. ]
4.3.0-rc1+ #1 Not tainted
-------------------------------
include/linux/kvm_host.h:488 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 0
1 lock held by qemu-system-i38/17000:
#0: (&(&kvm->mmu_lock)->rlock){+.+...}, at: kvm_zap_gfn_range+0x24/0x1a0 [kvm]
[...]
Call Trace:
dump_stack+0x4e/0x84
lockdep_rcu_suspicious+0xfd/0x130
kvm_zap_gfn_range+0x188/0x1a0 [kvm]
kvm_set_cr0+0xde/0x1e0 [kvm]
init_vmcb+0x760/0xad0 [kvm_amd]
svm_create_vcpu+0x197/0x250 [kvm_amd]
kvm_arch_vcpu_create+0x47/0x70 [kvm]
kvm_vm_ioctl+0x302/0x7e0 [kvm]
? __lock_is_held+0x51/0x70
? __fget+0x101/0x210
do_vfs_ioctl+0x2f4/0x560
? __fget_light+0x29/0x90
SyS_ioctl+0x4c/0x90
entry_SYSCALL_64_fastpath+0x16/0x73
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Nicholas Bellinger [Wed, 23 Sep 2015 05:32:14 +0000 (22:32 -0700)]
iscsi-target: Avoid OFMarker + IFMarker negotiation
This patch fixes a v4.2+ regression introduced by commit
c04a6091
that removed support for obsolete sync-and-steering markers usage
as originally defined in RFC-3720.
The regression would involve attempting to send OFMarker=No +
IFMarker=No keys during opertional negotiation login phase,
including when initiators did not actually propose these keys.
The result for MSFT iSCSI initiators would be random junk in
TCP stream after the last successful login request was been sent
signaling the move to full feature phase (FFP) operation.
To address this bug, go ahead and avoid negotiating these keys
by default unless the initiator explicitly proposes them, but
still respond to them with 'No' if they are proposed.
Reported-by: Dragan Milivojević <galileo@pkm-inc.com>
Bisected-by: Christophe Vu-Brugier <cvubrugier@fastmail.fm>
Tested-by: Christophe Vu-Brugier <cvubrugier@fastmail.fm>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Nicholas Bellinger [Thu, 17 Sep 2015 03:23:53 +0000 (20:23 -0700)]
target: Make TCM_WRITE_PROTECT failure honor D_SENSE bit
This patch changes transport_lookup_cmd_lun() to obtain
se_lun->lun_ref + se_cmd->se_device rcu_dereference during
TCM_WRITE_PROTECT -> CHECK_CONDITION failure status.
Do this to ensure the active control D_SENSE mode page bit
is being honored.
Reported-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Nicholas Bellinger [Wed, 16 Sep 2015 06:07:45 +0000 (23:07 -0700)]
target: Fix target_sense_desc_format NULL pointer dereference
This patch allows target_sense_desc_format() to be called without a
valid se_device pointer, which can occur during an early exception
ahead of transport_lookup_cmd_lun() setting up se_cmd->se_device.
This addresses a v4.3-rc1 specific NULL pointer dereference
regression introduced by commit
4e4937e8.
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Nicholas Bellinger [Wed, 16 Sep 2015 00:27:35 +0000 (17:27 -0700)]
target: Propigate backend read-only to core_tpg_add_lun
This patch adds a DF_READ_ONLY flag that is used by IBLOCK to
signal when a backend has been set to read-only mode, in order
to propigate read-only status up to core_tpg_add_lun() for all
future LUN fabric exports.
With this is place, existing emulation for reporting read-only
in spc_emulate_modesense() and normal transport_lookup_cmd_lun()
TCM_WRITE_PROTECTED status checking just works as expected.
Reported-by: Joeue Deng <joeue404@gmail.com>
Reported-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Nicholas Bellinger [Sun, 13 Sep 2015 09:30:46 +0000 (02:30 -0700)]
target: Fix PR registration + APTPL RCU conversion regression
This patch fixes a v4.2+ regression introduced by commit
79dc9c9e86
where lookup of t10_pr_registration->pr_reg_deve and associated
->pr_kref get was missing from __core_scsi3_do_alloc_registration(),
which is responsible for setting DEF_PR_REG_ACTIVE.
This would result in REGISTER operations completing successfully,
but subsequent core_scsi3_pr_seq_non_holder() checking would fail
with !DEF_PR_REG_ACTIVE -> RESERVATION CONFLICT status.
Update __core_scsi3_add_registration() to drop ->pr_kref reference
after registration and any optional ALL_TG_PT=1 processing has
completed. Update core_scsi3_decode_spec_i_port() to release
the new parent local_pr_reg->pr_kref as well.
Also, update __core_scsi3_check_aptpl_registration() to perform
the same target_nacl_find_deve() lookup + ->pr_kref get, now that
__core_scsi3_add_registration() expects to drop the reference.
Finally, since there are cases when se_dev_entry->se_lun_acl can
still be dereferenced in core_scsi3_lunacl_undepend_item() while
holding ->pr_kref, go ahead and move explicit rcu_assign_pointer()
NULL assignments within core_disable_device_list_for_node() until
after orig->pr_comp finishes.
Reported-by: Scott L. Lykens <scott@lykens.org>
Tested-by: Scott L. Lykens <scott@lykens.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Lee Duncan <lduncan@suse.com>
Cc: <stable@vger.kernel.org> # v4.2+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
David S. Miller [Fri, 25 Sep 2015 06:04:53 +0000 (23:04 -0700)]
Merge branch 'phy-mdio-refcnt'
Russell King says:
====================
Phy, mdiobus, and netdev struct device fixes
The third version of this series fixes the build error which David
identified, and drops the broken changes for the Cavium Thunger BGX
ethernet driver as this driver requires some complex changes to
resolve the leakage - and this is best done by people who can test
the driver.
Compared to v2, the only patch which has changed is patch 6
"net: fix phy refcounting in a bunch of drivers"
I _think_ I've been able to build-test all the drivers touched by
that patch to some degree now, though several of them needed the
Kconfig hacked to allow it (not all had || COMPILE_TEST clause on
their dependencies.)
Previous cover letters below:
This is the second version of the series, with the comments David had
on the first patch fixed up. Original series description with updated
diffstat below.
While looking at the DSA code, I noticed we have a
of_find_net_device_by_node(), and it looks like users of that are
similarly buggy - it looks like net/dsa/dsa.c is the only user. Fix
that too.
Hi,
While looking at the phy code, I identified a number of weaknesses
where refcounting on device structures was being leaked, where
modules could be removed while in-use, and where the fixed-phy could
end up having unintended consequences caused by incorrect calls to
fixed_phy_update_state().
This patch series resolves those issues, some of which were discovered
with testing on an Armada 388 board. Not all patches are fully tested,
particularly the one which touches several network drivers.
When resolving the struct device refcounting problems, several different
solutions were considered before settling on the implementation here -
one of the considerations was to avoid touching many network drivers.
The solution here is:
phy_attach*() - takes a refcount
phy_detach*() - drops the phy_attach refcount
Provided drivers always attach and detach their phys, which they should
already be doing, this should change nothing, even if they leak a refcount.
of_phy_find_device() and of_* functions which use that take
a refcount. Arrange for this refcount to be dropped once
the phy is attached.
This is the reason why the previous change is important - we can't drop
this refcount taken by of_phy_find_device() until something else holds
a reference on the device. This resolves the leaked refcount caused by
using of_phy_connect() or of_phy_attach().
Even without the above changes, these drivers are leaking by calling
of_phy_find_device(). These drivers are addressed by adding the
appropriate release of that refcount.
The mdiobus code also suffered from the same kind of leak, but thankfully
this only happened in one place - the mdio-mux code.
I also found that the try_module_get() in the phy layer code was utterly
useless: phydev->dev.driver was guaranteed to always be NULL, so
try_module_get() was always being called with a NULL argument. I proved
this with my SFP code, which declares its own MDIO bus - the module use
count was never incremented irrespective of how I set the MDIO bus up.
This allowed the MDIO bus code to be removed from the kernel while there
were still PHYs attached to it.
One other bug was discovered: while using in-band-status with mvneta, it
was found that if a real phy is attached with in-band-status enabled,
and another ethernet interface is using the fixed-phy infrastructure, the
interface using the fixed-phy infrastructure is configured according to
the other interface using the in-band-status - which is caused by the
fixed-phy code not verifying that the phy_device passed in is actually
a fixed-phy device, rather than a real MDIO phy.
Lastly, having mdio_bus reversing phy_device_register() internals seems
like a layering violation - it's trivial to move that code to the phy
device layer.
====================
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Thu, 24 Sep 2015 19:36:33 +0000 (20:36 +0100)]
net: fix net_device refcounting
of_find_net_device_by_node() uses class_find_device() internally to
lookup the corresponding network device. class_find_device() returns
a reference to the embedded struct device, with its refcount
incremented.
Add a comment to the definition in net/core/net-sysfs.c indicating the
need to drop this refcount, and fix the DSA code to drop this refcount
when the OF-generated platform data is cleaned up and freed. Also
arrange for the ref to be dropped when handling errors.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Thu, 24 Sep 2015 19:36:28 +0000 (20:36 +0100)]
phy: add phy_device_remove()
Add a phy_device_remove() function to complement phy_device_register(),
which undoes the effects of phy_device_register() by removing the phy
device from visibility, but not freeing it.
This allows these details to be moved out of the mdio bus code into
the phy code where this action belongs.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Thu, 24 Sep 2015 19:36:23 +0000 (20:36 +0100)]
phy: fixed-phy: properly validate phy in fixed_phy_update_state()
Validate that the phy_device passed into fixed_phy_update_state() is a
fixed-phy device before walking the list of phys for a fixed phy at the
same address.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>