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Thu, 09 Mar 2023 02:48:19 -0800 (PST) MIME-Version: 1.0 References: <20230307163413.143334-1-bchihi@baylibre.com> In-Reply-To: From: Balsam CHIHI Date: Thu, 9 Mar 2023 11:47:43 +0100 Message-ID: Subject: Re: [PATCH 0/4] Add LVTS support for mt8192 To: Chen-Yu Tsai Cc: daniel.lezcano@linaro.org, angelogioacchino.delregno@collabora.com, rafael@kernel.org, amitk@kernel.org, rui.zhang@intel.com, matthias.bgg@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, rdunlap@infradead.org, ye.xingchen@zte.com.cn, p.zabel@pengutronix.de, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, khilman@baylibre.com, james.lo@mediatek.com, rex-bc.chen@mediatek.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Hi Chen-Yu, On Thu, Mar 9, 2023 at 6:04=E2=80=AFAM Chen-Yu Tsai wr= ote: > > On Wed, Mar 8, 2023 at 12:34=E2=80=AFAM wrote: > > > > From: Balsam CHIHI > > > > Add full LVTS support (MCU thermal domain + AP thermal domain) to Media= Tek MT8192 SoC. > > > > This series is a continuation of the previous series "Add LVTS Thermal = Architecture" v14 : > > https://patchwork.kernel.org/project/linux-pm/cover/20230209105628.= 50294-1-bchihi@baylibre.com/ > > and "Add LVTS's AP thermal domain support for mt8195" : > > https://patchwork.kernel.org/project/linux-pm/cover/20230307154524.= 118541-1-bchihi@baylibre.com/ > > > > Based on top of thermal/linux-next : > > base-commit: 6828e402d06f7c574430b61c05db784cd847b19f > > > > Depends on these patches as they are not yet applyied to thermal/linux-= next branch : > > [1/4] dt-bindings: thermal: mediatek: Add AP domain to LVTS thermal= controllers for mt8195 > > https://patchwork.kernel.org/project/linux-pm/patch/20230307154524.= 118541-2-bchihi@baylibre.com/ > > [2/4] thermal/drivers/mediatek/lvts_thermal: Add AP domain for mt81= 95 > > https://patchwork.kernel.org/project/linux-pm/patch/20230307154524.= 118541-3-bchihi@baylibre.com/ > > > > Balsam CHIHI (4): > > dt-bindings: thermal: mediatek: Add LVTS thermal controller definitio= n > > for mt8192 > > thermal/drivers/mediatek/lvts_thermal: Add mt8192 support > > arm64: dts: mediatek: mt8192: Add thermal zones and thermal nodes > > arm64: dts: mediatek: mt8192: Add temperature mitigation threshold > > I tried this on my Hayato. As soon as lvts_ap probes and its thermal zone= s > are registered, a "critical temperature reached" warning is immediately > triggered for all the zones, a reboot is forced. A NULL pointer dereferen= ce > is also triggered somewhere. I filtered out all the interspersed "critica= l > temperature" messages: > Thank you very much for testing! It seems like interrupts on mt8192 and mt8195 do not behave the same way. I am investigating the issues. > [ 2.943847] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000600 > [ 2.958818] Mem abort info: > [ 2.965996] ESR =3D 0x0000000096000005 > [ 2.973765] SMCCC: SOC_ID: ID =3D jep106:0426:8192 Revision =3D 0x0000= 0000 > [ 2.975442] EC =3D 0x25: DABT (current EL), IL =3D 32 bits > [ 2.987305] SET =3D 0, FnV =3D 0 > [ 2.995521] EA =3D 0, S1PTW =3D 0 > [ 3.004265] FSC =3D 0x05: level 1 translation fault > [ 3.014365] Data abort info: > [ 3.017344] ISV =3D 0, ISS =3D 0x00000005 > [ 3.021279] CM =3D 0, WnR =3D 0 > [ 3.022124] GACT probability NOT on > [ 3.024277] [0000000000000600] user address but active_mm is swapper > [ 3.034190] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP > [ 3.044738] Modules linked in: > [ 3.044745] CPU: 0 PID: 97 Comm: irq/273-1100b00 Not tainted > 6.3.0-rc1-next-20230308-01996-g3c0b9a61a3e5-dirty #575 > c7b94096b594a95f18217c2ad4a2bd6d2c431108 > [ 3.044751] Hardware name: Google Hayato rev1 (DT) > [ 3.044755] pstate: 60000009 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYP= E=3D--) > [ 3.052055] pc : __mutex_lock+0x60/0x438 > [ 3.052066] lr : __mutex_lock+0x54/0x438 > [ 3.052070] sp : ffffffc008883c60 > [ 3.070822] x29: ffffffc008883c60 x28: ffffff80c281a880 x27: 000881f00= 009001f > [ 3.070830] x26: 1fc0000000247c00 x25: ffffff80c281a900 x24: 000000000= 0000000 > [ 3.070837] x23: 0000000000000000 x22: ffffffe5ae5d45f4 x21: 000000000= 0000002 > [ 3.086211] x20: 0000000000000000 x19: 00000000000005a0 x18: fffffffff= fffffff > [ 3.086218] x17: 6568636165722065 x16: 727574617265706d x15: 000000000= 0000028 > [ 3.097773] x14: 0000000000000000 x13: 0000000000003395 x12: ffffffe5a= f7f6ff0 > [ 3.097780] x11: 65706d655428206e x10: 0000000000000000 x9 : ffffffe5a= dcf4b08 > [ 3.097787] x8 : ffffffe5afe03230 x7 : 00000000000261b0 x6 : ffffff80c= 2b86600 > [ 3.105609] x5 : 0000000000000000 x4 : ffffff80c2b86600 x3 : 000000000= 0000000 > [ 3.112565] x2 : ffffff9b505f6000 x1 : 0000000000000000 x0 : 000000000= 0000000 > [ 3.127593] Call trace: > [ 3.127595] __mutex_lock+0x60/0x438 > [ 3.127600] mutex_lock_nested+0x34/0x48 > [ 3.141844] thermal_zone_device_update+0x34/0x80 > [ 3.152879] lvts_irq_handler+0xbc/0x158 > [ 3.152886] irq_thread_fn+0x34/0xb8 > [ 3.161489] irq_thread+0x19c/0x298 > [ 3.161494] kthread+0x11c/0x128 > [ 3.175152] ret_from_fork+0x10/0x20 > [ 3.175163] Code: 97ccbb7c 9000bea0 b9411400 35000080 (f9403260) > [ 3.189402] ---[ end trace 0000000000000000 ]--- > [ 3.193417] Kernel panic - not syncing: Oops: Fatal exception > [ 3.201255] Kernel Offset: 0x25a5c00000 from 0xffffffc008000000 > [ 3.201257] PHYS_OFFSET: 0x40000000 > [ 3.201259] CPU features: 0x600000,01700506,3200720b > [ 3.201263] Memory Limit: none > [ 3.376838] Rebooting in 30 seconds.. > > [...] Best regards, Balsam