Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

5.11: pinctrl: tigerlake: Fix GPIO mapping for newer version of software #64

Closed
wants to merge 10 commits into from

Conversation

crawfxrd
Copy link
Member

Cherry-pick 2f658f7 to fix TGL-H GPIO mapping.

jackpot51 and others added 10 commits June 22, 2021 10:33
The pin fixup is required to detect headset microphones on the oryp5.

Fixes: 80690a2 ("ALSA: hda/realtek - Add quirk for Tuxedo XC 1509")
Signed-off-by: Tim Crawford <tcrawford@system76.com>
By the specification the 0xF0000-0xF02FF range is only valid when the
DPCD revision is 1.4 or higher. Disable LTTPR support if this isn't so.

Trying to detect LTTPRs returned corrupted values for the above DPCD
range at least on a Skylake host with an LG 43UD79-B monitor with a DPCD
revision 1.2 connected.

v2: Add the actual version check.
v3: Fix s/DRPX/DPRX/ typo.

Fixes: 7b2a4ab ("drm/i915: Switch to LTTPR transparent mode link training")
Cc: <stable@vger.kernel.org> # v5.11
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210317190149.4032966-1-imre.deak@intel.com
(cherry picked from commit 264613b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
By the specification the 0xF0000 - 0xF02FF range is only valid if the
LTTPR revision at 0xF0000 is at least 1.4. Disable the LTTPR support
otherwise.

Fixes: 7b2a4ab ("drm/i915: Switch to LTTPR transparent mode link training")
Cc: <stable@vger.kernel.org> # v5.11
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210317184901.4029798-4-imre.deak@intel.com
(cherry picked from commit 1663ad4)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Up to now we were reading some DRAM information from MCHBAR register
and from pcode what is already not good but some GEN12(TGL-H and ADL-S)
platforms have MCHBAR DRAM information in different offsets.

This was notified to HW team that decided that the best alternative is
always apply the 16gb_dimm watermark adjustment for GEN12+ platforms
and read the remaning DRAM information needed to other display
programming from pcode.

So here moving the DRAM pcode function to intel_dram.c, removing
the duplicated fields from intel_qgv_info, setting and using
information from dram_info.

v2:
- bring back num_points to intel_qgv_info as num_qgv_point can be
overwritten in icl_get_qgv_points()
- add gen12_get_dram_info() and simplify gen11_get_dram_info()

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210128164312.91160-2-jose.souza@intel.com
The software mapping for GPIO, which initially comes from Microsoft,
is subject to change by respective Windows and firmware developers.
Due to the above the driver had been written and published way ahead
of the schedule, and thus the numbering schema used in it is outdated.

Fix the numbering schema in accordance with the real products on market.

Fixes: 653d964 ("pinctrl: tigerlake: Add support for Tiger Lake-H")
Reported-and-tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reported-by: Riccardo Mori <patacca@autistici.org>
Reported-and-tested-by: Lovesh <lovesh.bond@gmail.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213463
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213579
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213857
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
@crawfxrd crawfxrd requested review from a team August 20, 2021 18:22
@crawfxrd crawfxrd changed the title pinctrl: tigerlake: Fix GPIO mapping for newer version of software 5.11: pinctrl: tigerlake: Fix GPIO mapping for newer version of software Aug 20, 2021
@jackpot51 jackpot51 force-pushed the master branch 2 times, most recently from a887ad7 to e862cf5 Compare August 26, 2021 15:31
@jackpot51 jackpot51 closed this Sep 14, 2021
@jackpot51 jackpot51 deleted the tglh-gpios branch September 14, 2021 18:13
jackpot51 pushed a commit that referenced this pull request Feb 7, 2022
commit 8b59b0a upstream.

arm32 uses software to simulate the instruction replaced
by kprobe. some instructions may be simulated by constructing
assembly functions. therefore, before executing instruction
simulation, it is necessary to construct assembly function
execution environment in C language through binding registers.
after kasan is enabled, the register binding relationship will
be destroyed, resulting in instruction simulation errors and
causing kernel panic.

the kprobe emulate instruction function is distributed in three
files: actions-common.c actions-arm.c actions-thumb.c, so disable
KASAN when compiling these files.

for example, use kprobe insert on cap_capable+20 after kasan
enabled, the cap_capable assembly code is as follows:
<cap_capable>:
e92d47f0	push	{r4, r5, r6, r7, r8, r9, sl, lr}
e1a05000	mov	r5, r0
e280006c	add	r0, r0, #108    ; 0x6c
e1a04001	mov	r4, r1
e1a06002	mov	r6, r2
e59fa090	ldr	sl, [pc, #144]  ;
ebfc7bf8	bl	c03aa4b4 <__asan_load4>
e595706c	ldr	r7, [r5, #108]  ; 0x6c
e2859014	add	r9, r5, #20
......
The emulate_ldr assembly code after enabling kasan is as follows:
c06f1384 <emulate_ldr>:
e92d47f0	push	{r4, r5, r6, r7, r8, r9, sl, lr}
e282803c	add	r8, r2, #60     ; 0x3c
e1a05000	mov	r5, r0
e7e37855	ubfx	r7, r5, #16, #4
e1a00008	mov	r0, r8
e1a09001	mov	r9, r1
e1a04002	mov	r4, r2
ebf35462	bl	c03c6530 <__asan_load4>
e357000f	cmp	r7, #15
e7e36655	ubfx	r6, r5, #12, #4
e205a00f	and	sl, r5, #15
0a000001	beq	c06f13bc <emulate_ldr+0x38>
e0840107	add	r0, r4, r7, lsl #2
ebf3545c	bl	c03c6530 <__asan_load4>
e084010a	add	r0, r4, sl, lsl #2
ebf3545a	bl	c03c6530 <__asan_load4>
e2890010	add	r0, r9, #16
ebf35458	bl	c03c6530 <__asan_load4>
e5990010	ldr	r0, [r9, #16]
e12fff30	blx	r0
e356000f	cm	r6, #15
1a000014	bne	c06f1430 <emulate_ldr+0xac>
e1a06000	mov	r6, r0
e2840040	add	r0, r4, #64     ; 0x40
......

when running in emulate_ldr to simulate the ldr instruction, panic
occurred, and the log is as follows:
Unable to handle kernel NULL pointer dereference at virtual address
00000090
pgd = ecb46400
[00000090] *pgd=2e0fa003, *pmd=00000000
Internal error: Oops: 206 [#1] SMP ARM
PC is at cap_capable+0x14/0xb0
LR is at emulate_ldr+0x50/0xc0
psr: 600d0293 sp : ecd63af8  ip : 00000004  fp : c0a7c30c
r10: 00000000  r9 : c30897f4  r8 : ecd63cd4
r7 : 0000000f  r6 : 0000000a  r5 : e59fa090  r4 : ecd63c98
r3 : c06ae294  r2 : 00000000  r1 : b7611300  r0 : bf4ec008
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 32c5387d  Table: 2d546400  DAC: 55555555
Process bash (pid: 1643, stack limit = 0xecd60190)
(cap_capable) from (kprobe_handler+0x218/0x340)
(kprobe_handler) from (kprobe_trap_handler+0x24/0x48)
(kprobe_trap_handler) from (do_undefinstr+0x13c/0x364)
(do_undefinstr) from (__und_svc_finish+0x0/0x30)
(__und_svc_finish) from (cap_capable+0x18/0xb0)
(cap_capable) from (cap_vm_enough_memory+0x38/0x48)
(cap_vm_enough_memory) from
(security_vm_enough_memory_mm+0x48/0x6c)
(security_vm_enough_memory_mm) from
(copy_process.constprop.5+0x16b4/0x25c8)
(copy_process.constprop.5) from (_do_fork+0xe8/0x55c)
(_do_fork) from (SyS_clone+0x1c/0x24)
(SyS_clone) from (__sys_trace_return+0x0/0x10)
Code: 0050a0e1 6c0080e2 0140a0e1 0260a0e1 (f801f0e7)

Fixes: 35aa1df ("ARM kprobes: instruction single-stepping support")
Fixes: 4210157 ("ARM: 9017/2: Enable KASan for ARM")
Signed-off-by: huangshaobo <huangshaobo6@huawei.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
jackpot51 pushed a commit that referenced this pull request Feb 28, 2022
commit 8b59b0a upstream.

arm32 uses software to simulate the instruction replaced
by kprobe. some instructions may be simulated by constructing
assembly functions. therefore, before executing instruction
simulation, it is necessary to construct assembly function
execution environment in C language through binding registers.
after kasan is enabled, the register binding relationship will
be destroyed, resulting in instruction simulation errors and
causing kernel panic.

the kprobe emulate instruction function is distributed in three
files: actions-common.c actions-arm.c actions-thumb.c, so disable
KASAN when compiling these files.

for example, use kprobe insert on cap_capable+20 after kasan
enabled, the cap_capable assembly code is as follows:
<cap_capable>:
e92d47f0	push	{r4, r5, r6, r7, r8, r9, sl, lr}
e1a05000	mov	r5, r0
e280006c	add	r0, r0, #108    ; 0x6c
e1a04001	mov	r4, r1
e1a06002	mov	r6, r2
e59fa090	ldr	sl, [pc, #144]  ;
ebfc7bf8	bl	c03aa4b4 <__asan_load4>
e595706c	ldr	r7, [r5, #108]  ; 0x6c
e2859014	add	r9, r5, #20
......
The emulate_ldr assembly code after enabling kasan is as follows:
c06f1384 <emulate_ldr>:
e92d47f0	push	{r4, r5, r6, r7, r8, r9, sl, lr}
e282803c	add	r8, r2, #60     ; 0x3c
e1a05000	mov	r5, r0
e7e37855	ubfx	r7, r5, #16, #4
e1a00008	mov	r0, r8
e1a09001	mov	r9, r1
e1a04002	mov	r4, r2
ebf35462	bl	c03c6530 <__asan_load4>
e357000f	cmp	r7, #15
e7e36655	ubfx	r6, r5, #12, #4
e205a00f	and	sl, r5, #15
0a000001	beq	c06f13bc <emulate_ldr+0x38>
e0840107	add	r0, r4, r7, lsl #2
ebf3545c	bl	c03c6530 <__asan_load4>
e084010a	add	r0, r4, sl, lsl #2
ebf3545a	bl	c03c6530 <__asan_load4>
e2890010	add	r0, r9, #16
ebf35458	bl	c03c6530 <__asan_load4>
e5990010	ldr	r0, [r9, #16]
e12fff30	blx	r0
e356000f	cm	r6, #15
1a000014	bne	c06f1430 <emulate_ldr+0xac>
e1a06000	mov	r6, r0
e2840040	add	r0, r4, #64     ; 0x40
......

when running in emulate_ldr to simulate the ldr instruction, panic
occurred, and the log is as follows:
Unable to handle kernel NULL pointer dereference at virtual address
00000090
pgd = ecb46400
[00000090] *pgd=2e0fa003, *pmd=00000000
Internal error: Oops: 206 [#1] SMP ARM
PC is at cap_capable+0x14/0xb0
LR is at emulate_ldr+0x50/0xc0
psr: 600d0293 sp : ecd63af8  ip : 00000004  fp : c0a7c30c
r10: 00000000  r9 : c30897f4  r8 : ecd63cd4
r7 : 0000000f  r6 : 0000000a  r5 : e59fa090  r4 : ecd63c98
r3 : c06ae294  r2 : 00000000  r1 : b7611300  r0 : bf4ec008
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 32c5387d  Table: 2d546400  DAC: 55555555
Process bash (pid: 1643, stack limit = 0xecd60190)
(cap_capable) from (kprobe_handler+0x218/0x340)
(kprobe_handler) from (kprobe_trap_handler+0x24/0x48)
(kprobe_trap_handler) from (do_undefinstr+0x13c/0x364)
(do_undefinstr) from (__und_svc_finish+0x0/0x30)
(__und_svc_finish) from (cap_capable+0x18/0xb0)
(cap_capable) from (cap_vm_enough_memory+0x38/0x48)
(cap_vm_enough_memory) from
(security_vm_enough_memory_mm+0x48/0x6c)
(security_vm_enough_memory_mm) from
(copy_process.constprop.5+0x16b4/0x25c8)
(copy_process.constprop.5) from (_do_fork+0xe8/0x55c)
(_do_fork) from (SyS_clone+0x1c/0x24)
(SyS_clone) from (__sys_trace_return+0x0/0x10)
Code: 0050a0e1 6c0080e2 0140a0e1 0260a0e1 (f801f0e7)

Fixes: 35aa1df ("ARM kprobes: instruction single-stepping support")
Fixes: 4210157 ("ARM: 9017/2: Enable KASan for ARM")
Signed-off-by: huangshaobo <huangshaobo6@huawei.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13r0ck pushed a commit that referenced this pull request Jun 15, 2023
[ Upstream commit d6352da ]

'__net_initdata' becomes a no-op with CONFIG_NET_NS=y, but when this
option is disabled it becomes '__initdata', which means the data can be
freed after the initialization phase. This annotation is obviously
incorrect for the devlink net device notifier block which is still
registered after the initialization phase [1].

Fix this crash by removing the '__net_initdata' annotation.

[1]
general protection fault, probably for non-canonical address 0xcccccccccccccccc: 0000 [#1] PREEMPT SMP
CPU: 3 PID: 117 Comm: (udev-worker) Not tainted 6.4.0-rc1-custom-gdf0acdc59b09 #64
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc37 04/01/2014
RIP: 0010:notifier_call_chain+0x58/0xc0
[...]
Call Trace:
 <TASK>
 dev_set_mac_address+0x85/0x120
 dev_set_mac_address_user+0x30/0x50
 do_setlink+0x219/0x1270
 rtnl_setlink+0xf7/0x1a0
 rtnetlink_rcv_msg+0x142/0x390
 netlink_rcv_skb+0x58/0x100
 netlink_unicast+0x188/0x270
 netlink_sendmsg+0x214/0x470
 __sys_sendto+0x12f/0x1a0
 __x64_sys_sendto+0x24/0x30
 do_syscall_64+0x38/0x80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: e93c937 ("devlink: change per-devlink netdev notifier to static one")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Closes: https://lore.kernel.org/netdev/600ddf9e-589a-2aa0-7b69-a438f833ca10@samsung.com/
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230515162925.1144416-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

5 participants