[PATCH AUTOSEL 6.0 1/8] rcu: Fix __this_cpu_read() lockdep warning in rcu_force_quiescent_state()
From: Zqiang qiang1.zhang@intel.com
[ Upstream commit ceb1c8c9b8aa9199da46a0f29d2d5f08d9b44c15 ]
Running rcutorture with non-zero fqs_duration module parameter in a kernel built with CONFIG_PREEMPTION=y results in the following splat:
BUG: using __this_cpu_read() in preemptible [00000000] code: rcu_torture_fqs/398 caller is __this_cpu_preempt_check+0x13/0x20 CPU: 3 PID: 398 Comm: rcu_torture_fqs Not tainted 6.0.0-rc1-yoctodev-standard+ Call Trace: <TASK> dump_stack_lvl+0x5b/0x86 dump_stack+0x10/0x16 check_preemption_disabled+0xe5/0xf0 __this_cpu_preempt_check+0x13/0x20 rcu_force_quiescent_state.part.0+0x1c/0x170 rcu_force_quiescent_state+0x1e/0x30 rcu_torture_fqs+0xca/0x160 ? rcu_torture_boost+0x430/0x430 kthread+0x192/0x1d0 ? kthread_complete_and_exit+0x30/0x30 ret_from_fork+0x22/0x30 </TASK>
The problem is that rcu_force_quiescent_state() uses __this_cpu_read() in preemptible code instead of the proper raw_cpu_read(). This commit therefore changes __this_cpu_read() to raw_cpu_read().
Signed-off-by: Zqiang qiang1.zhang@intel.com Reviewed-by: Joel Fernandes (Google) joel@joelfernandes.org Signed-off-by: Paul E. McKenney paulmck@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/rcu/tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 5b52727dcc1c..aedd43e1f21c 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2415,7 +2415,7 @@ void rcu_force_quiescent_state(void) struct rcu_node *rnp_old = NULL;
/* Funnel through hierarchy to reduce memory contention. */ - rnp = __this_cpu_read(rcu_data.mynode); + rnp = raw_cpu_read(rcu_data.mynode); for (; rnp != NULL; rnp = rnp->parent) { ret = (READ_ONCE(rcu_state.gp_flags) & RCU_GP_FLAG_FQS) || !raw_spin_trylock(&rnp->fqslock);
From: Mark Rutland mark.rutland@arm.com
[ Upstream commit d8c1d798a2e5091128c391c6dadcc9be334af3f5 ]
We use is_ttbr0_addr() in noinstr code, but as it's only marked as inline, it's theoretically possible for the compiler to place it out-of-line and instrument it, which would be problematic.
Mark is_ttbr0_addr() as __always_inline such that that can safely be used from noinstr code. For consistency, do the same to is_ttbr1_addr(). Note that while is_ttbr1_addr() calls arch_kasan_reset_tag(), this is a macro (and its callees are either macros or __always_inline), so there is not a risk of transient instrumentation.
Signed-off-by: Mark Rutland mark.rutland@arm.com Cc: Catalin Marinas catalin.marinas@arm.com Cc: Will Deacon will@kernel.org Link: https://lore.kernel.org/r/20221114144042.3001140-1-mark.rutland@arm.com Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/include/asm/processor.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 86eb0bfe3b38..d9144b6e078c 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -308,13 +308,13 @@ static inline void compat_start_thread(struct pt_regs *regs, unsigned long pc, } #endif
-static inline bool is_ttbr0_addr(unsigned long addr) +static __always_inline bool is_ttbr0_addr(unsigned long addr) { /* entry assembly clears tags for TTBR0 addrs */ return addr < TASK_SIZE; }
-static inline bool is_ttbr1_addr(unsigned long addr) +static __always_inline bool is_ttbr1_addr(unsigned long addr) { /* TTBR1 addresses may have a tag if KASAN_SW_TAGS is in use */ return arch_kasan_reset_tag(addr) >= PAGE_OFFSET;
From: Adriana Kobylak anoo@us.ibm.com
[ Upstream commit e184d42a6e085f95f5c4f1a4fbabebab2984cb68 ]
Move the reserved regions to account for a decrease in DRAM when ECC is enabled. ECC takes 1/9th of memory.
Running on HW with ECC off, u-boot prints: DRAM: already initialized, 1008 MiB (capacity:1024 MiB, VGA:16 MiB, ECC:off)
And with ECC on, u-boot prints: DRAM: already initialized, 896 MiB (capacity:1024 MiB, VGA:16 MiB, ECC:on, ECC size:896 MiB)
This implies that MCR54 is configured for ECC to be bounded at the bottom of a 16MiB VGA memory region:
1024MiB - 16MiB (VGA) = 1008MiB 1008MiB / 9 (for ECC) = 112MiB 1008MiB - 112MiB = 896MiB (available DRAM)
The flash_memory region currently starts at offset 896MiB: 0xb8000000 (flash_memory offset) - 0x80000000 (base memory address) = 0x38000000 = 896MiB
This is the end of the available DRAM with ECC enabled and therefore it needs to be moved.
Since the flash_memory is 64MiB in size and needs to be 64MiB aligned, it can just be moved up by 64MiB and would sit right at the end of the available DRAM buffer.
The ramoops region currently follows the flash_memory, but it can be moved to sit above flash_memory which would minimize the address-space fragmentation.
Signed-off-by: Adriana Kobylak anoo@us.ibm.com Reviewed-by: Andrew Jeffery andrew@aj.id.au Link: https://lore.kernel.org/r/20220916195535.1020185-1-anoo@linux.ibm.com Signed-off-by: Joel Stanley joel@jms.id.au Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts | 17 ++++++++--------- arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | 16 +++++++++------- 2 files changed, 17 insertions(+), 16 deletions(-)
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts index a6a2bc3b855c..fcc890e3ad73 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts @@ -162,16 +162,9 @@ reserved-memory { #size-cells = <1>; ranges;
- /* LPC FW cycle bridge region requires natural alignment */ - flash_memory: region@b8000000 { - no-map; - reg = <0xb8000000 0x04000000>; /* 64M */ - }; - - /* 48MB region from the end of flash to start of vga memory */ - ramoops@bc000000 { + ramoops@b3e00000 { compatible = "ramoops"; - reg = <0xbc000000 0x200000>; /* 16 * (4 * 0x8000) */ + reg = <0xb3e00000 0x200000>; /* 16 * (4 * 0x8000) */ record-size = <0x8000>; console-size = <0x8000>; ftrace-size = <0x8000>; @@ -179,6 +172,12 @@ ramoops@bc000000 { max-reason = <3>; /* KMSG_DUMP_EMERG */ };
+ /* LPC FW cycle bridge region requires natural alignment */ + flash_memory: region@b4000000 { + no-map; + reg = <0xb4000000 0x04000000>; /* 64M */ + }; + /* VGA region is dictated by hardware strapping */ vga_memory: region@bf000000 { no-map; diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts index bf59a9962379..4879da4cdbd2 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts @@ -95,14 +95,9 @@ reserved-memory { #size-cells = <1>; ranges;
- flash_memory: region@b8000000 { - no-map; - reg = <0xb8000000 0x04000000>; /* 64M */ - }; - - ramoops@bc000000 { + ramoops@b3e00000 { compatible = "ramoops"; - reg = <0xbc000000 0x200000>; /* 16 * (4 * 0x8000) */ + reg = <0xb3e00000 0x200000>; /* 16 * (4 * 0x8000) */ record-size = <0x8000>; console-size = <0x8000>; ftrace-size = <0x8000>; @@ -110,6 +105,13 @@ ramoops@bc000000 { max-reason = <3>; /* KMSG_DUMP_EMERG */ };
+ /* LPC FW cycle bridge region requires natural alignment */ + flash_memory: region@b4000000 { + no-map; + reg = <0xb4000000 0x04000000>; /* 64M */ + }; + + /* VGA region is dictated by hardware strapping */ vga_memory: region@bf000000 { no-map; compatible = "shared-dma-pool";
From: "Guilherme G. Piccoli" gpiccoli@igalia.com
[ Upstream commit 1d044ca035dc22df0d3b39e56f2881071d9118bd ]
The Hyper-V framebuffer code registers a panic notifier in order to try updating its fbdev if the kernel crashed. The notifier callback is straightforward, but it calls the vmbus_sendpacket() routine eventually, and such function takes a spinlock for the ring buffer operations.
Panic path runs in atomic context, with local interrupts and preemption disabled, and all secondary CPUs shutdown. That said, taking a spinlock might cause a lockup if a secondary CPU was disabled with such lock taken. Fix it here by checking if the ring buffer spinlock is busy on Hyper-V framebuffer panic notifier; if so, bail-out avoiding the potential lockup scenario.
Cc: Andrea Parri (Microsoft) parri.andrea@gmail.com Cc: Dexuan Cui decui@microsoft.com Cc: Haiyang Zhang haiyangz@microsoft.com Cc: "K. Y. Srinivasan" kys@microsoft.com Cc: Michael Kelley mikelley@microsoft.com Cc: Stephen Hemminger sthemmin@microsoft.com Cc: Tianyu Lan Tianyu.Lan@microsoft.com Cc: Wei Liu wei.liu@kernel.org Tested-by: Fabio A M Martins fabiomirmar@gmail.com Signed-off-by: Guilherme G. Piccoli gpiccoli@igalia.com Reviewed-by: Michael Kelley mikelley@microsoft.com Link: https://lore.kernel.org/r/20220819221731.480795-10-gpiccoli@igalia.com Signed-off-by: Wei Liu wei.liu@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hv/ring_buffer.c | 13 +++++++++++++ drivers/video/fbdev/hyperv_fb.c | 8 +++++++- include/linux/hyperv.h | 2 ++ 3 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c index 59a4aa86d1f3..c6692fd5ab15 100644 --- a/drivers/hv/ring_buffer.c +++ b/drivers/hv/ring_buffer.c @@ -280,6 +280,19 @@ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info) ring_info->pkt_buffer_size = 0; }
+/* + * Check if the ring buffer spinlock is available to take or not; used on + * atomic contexts, like panic path (see the Hyper-V framebuffer driver). + */ + +bool hv_ringbuffer_spinlock_busy(struct vmbus_channel *channel) +{ + struct hv_ring_buffer_info *rinfo = &channel->outbound; + + return spin_is_locked(&rinfo->ring_lock); +} +EXPORT_SYMBOL_GPL(hv_ringbuffer_spinlock_busy); + /* Write to the ring buffer. */ int hv_ringbuffer_write(struct vmbus_channel *channel, const struct kvec *kv_list, u32 kv_count, diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c index b58b445bb529..0839ba7d3a34 100644 --- a/drivers/video/fbdev/hyperv_fb.c +++ b/drivers/video/fbdev/hyperv_fb.c @@ -779,12 +779,18 @@ static void hvfb_ondemand_refresh_throttle(struct hvfb_par *par, static int hvfb_on_panic(struct notifier_block *nb, unsigned long e, void *p) { + struct hv_device *hdev; struct hvfb_par *par; struct fb_info *info;
par = container_of(nb, struct hvfb_par, hvfb_panic_nb); - par->synchronous_fb = true; info = par->info; + hdev = device_to_hv_device(info->device); + + if (hv_ringbuffer_spinlock_busy(hdev->channel)) + return NOTIFY_DONE; + + par->synchronous_fb = true; if (par->need_docopy) hvfb_docopy(par, 0, dio_fb_size); synthvid_update(info, 0, 0, INT_MAX, INT_MAX); diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 3b42264333ef..646f1da9f27e 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1341,6 +1341,8 @@ struct hv_ring_buffer_debug_info { int hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info, struct hv_ring_buffer_debug_info *debug_info);
+bool hv_ringbuffer_spinlock_busy(struct vmbus_channel *channel); + /* Vmbus interface */ #define vmbus_driver_register(driver) \ __vmbus_driver_register(driver, THIS_MODULE, KBUILD_MODNAME)
From: Gaurav Kohli gauravkohli@linux.microsoft.com
[ Upstream commit 32c97d980e2eef25465d453f2956a9ca68926a3c ]
Hyper-V cleanup code comes under panic path where preemption and irq is already disabled. So calling of unregister_syscore_ops might schedule out the thread even for the case where mutex lock is free. hyperv_cleanup unregister_syscore_ops mutex_lock(&syscore_ops_lock) might_sleep Here might_sleep might schedule out this thread, where voluntary preemption config is on and this thread will never comes back. And also this was added earlier to maintain the symmetry which is not required as this can comes during crash shutdown path only.
To prevent the same, removing unregister_syscore_ops function call.
Signed-off-by: Gaurav Kohli gauravkohli@linux.microsoft.com Reviewed-by: Michael Kelley mikelley@microsoft.com Link: https://lore.kernel.org/r/1669443291-2575-1-git-send-email-gauravkohli@linux... Signed-off-by: Wei Liu wei.liu@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/hyperv/hv_init.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index a0165df3c4d8..d03561b2fffe 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -536,8 +536,6 @@ void hyperv_cleanup(void) { union hv_x64_msr_hypercall_contents hypercall_msr;
- unregister_syscore_ops(&hv_syscore_ops); - /* Reset our OS id */ wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0); hv_ghcb_msr_write(HV_X64_MSR_GUEST_OS_ID, 0);
From: Liu Shixin liushixin2@huawei.com
[ Upstream commit 6a46bf558803dd2b959ca7435a5c143efe837217 ]
UBSAN reported a shift-out-of-bounds warning:
left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106 ubsan_epilogue+0xa/0x44 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322 check_special_flags fs/binfmt_misc.c:241 [inline] create_entry fs/binfmt_misc.c:456 [inline] bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654 vfs_write+0x11e/0x580 fs/read_write.c:582 ksys_write+0xcf/0x120 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4194e1
Since the type of Node's flags is unsigned long, we should define these macros with same type too.
Signed-off-by: Liu Shixin liushixin2@huawei.com Signed-off-by: Kees Cook keescook@chromium.org Link: https://lore.kernel.org/r/20221102025123.1117184-1-liushixin2@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/binfmt_misc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index e1eae7ea823a..bb202ad369d5 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -44,10 +44,10 @@ static LIST_HEAD(entries); static int enabled = 1;
enum {Enabled, Magic}; -#define MISC_FMT_PRESERVE_ARGV0 (1 << 31) -#define MISC_FMT_OPEN_BINARY (1 << 30) -#define MISC_FMT_CREDENTIALS (1 << 29) -#define MISC_FMT_OPEN_FILE (1 << 28) +#define MISC_FMT_PRESERVE_ARGV0 (1UL << 31) +#define MISC_FMT_OPEN_BINARY (1UL << 30) +#define MISC_FMT_CREDENTIALS (1UL << 29) +#define MISC_FMT_OPEN_FILE (1UL << 28)
typedef struct { struct list_head list;
From: Andre Przywara andre.przywara@arm.com
[ Upstream commit f40cf244c3feb4e1a442f8029b691add2c65b3ab ]
Add the nodes for the MUSB and the four USB host controllers to the SoC .dtsi, along with the PHY node needed to bind all of them together.
EHCI/OHCI and MUSB are compatible to previous SoCs, but the PHY requires some quirks (handled in the driver).
Signed-off-by: Andre Przywara andre.przywara@arm.com Reviewed-by: Jernej Skrabec jernej.skrabec@gmail.com Link: https://lore.kernel.org/r/20221031111358.3387297-6-andre.przywara@arm.com Signed-off-by: Jernej Skrabec jernej.skrabec@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 160 ++++++++++++++++++ 1 file changed, 160 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi index 622a1f7d1641..74aed0d232a9 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi @@ -504,6 +504,166 @@ mdio0: mdio { }; };
+ usbotg: usb@5100000 { + compatible = "allwinner,sun50i-h616-musb", + "allwinner,sun8i-h3-musb"; + reg = <0x05100000 0x0400>; + clocks = <&ccu CLK_BUS_OTG>; + resets = <&ccu RST_BUS_OTG>; + interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "mc"; + phys = <&usbphy 0>; + phy-names = "usb"; + extcon = <&usbphy 0>; + status = "disabled"; + }; + + usbphy: phy@5100400 { + compatible = "allwinner,sun50i-h616-usb-phy"; + reg = <0x05100400 0x24>, + <0x05101800 0x14>, + <0x05200800 0x14>, + <0x05310800 0x14>, + <0x05311800 0x14>; + reg-names = "phy_ctrl", + "pmu0", + "pmu1", + "pmu2", + "pmu3"; + clocks = <&ccu CLK_USB_PHY0>, + <&ccu CLK_USB_PHY1>, + <&ccu CLK_USB_PHY2>, + <&ccu CLK_USB_PHY3>, + <&ccu CLK_BUS_EHCI2>; + clock-names = "usb0_phy", + "usb1_phy", + "usb2_phy", + "usb3_phy", + "pmu2_clk"; + resets = <&ccu RST_USB_PHY0>, + <&ccu RST_USB_PHY1>, + <&ccu RST_USB_PHY2>, + <&ccu RST_USB_PHY3>; + reset-names = "usb0_reset", + "usb1_reset", + "usb2_reset", + "usb3_reset"; + status = "disabled"; + #phy-cells = <1>; + }; + + ehci0: usb@5101000 { + compatible = "allwinner,sun50i-h616-ehci", + "generic-ehci"; + reg = <0x05101000 0x100>; + interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI0>, + <&ccu CLK_BUS_EHCI0>, + <&ccu CLK_USB_OHCI0>; + resets = <&ccu RST_BUS_OHCI0>, + <&ccu RST_BUS_EHCI0>; + phys = <&usbphy 0>; + phy-names = "usb"; + status = "disabled"; + }; + + ohci0: usb@5101400 { + compatible = "allwinner,sun50i-h616-ohci", + "generic-ohci"; + reg = <0x05101400 0x100>; + interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI0>, + <&ccu CLK_USB_OHCI0>; + resets = <&ccu RST_BUS_OHCI0>; + phys = <&usbphy 0>; + phy-names = "usb"; + status = "disabled"; + }; + + ehci1: usb@5200000 { + compatible = "allwinner,sun50i-h616-ehci", + "generic-ehci"; + reg = <0x05200000 0x100>; + interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI1>, + <&ccu CLK_BUS_EHCI1>, + <&ccu CLK_USB_OHCI1>; + resets = <&ccu RST_BUS_OHCI1>, + <&ccu RST_BUS_EHCI1>; + phys = <&usbphy 1>; + phy-names = "usb"; + status = "disabled"; + }; + + ohci1: usb@5200400 { + compatible = "allwinner,sun50i-h616-ohci", + "generic-ohci"; + reg = <0x05200400 0x100>; + interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI1>, + <&ccu CLK_USB_OHCI1>; + resets = <&ccu RST_BUS_OHCI1>; + phys = <&usbphy 1>; + phy-names = "usb"; + status = "disabled"; + }; + + ehci2: usb@5310000 { + compatible = "allwinner,sun50i-h616-ehci", + "generic-ehci"; + reg = <0x05310000 0x100>; + interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI2>, + <&ccu CLK_BUS_EHCI2>, + <&ccu CLK_USB_OHCI2>; + resets = <&ccu RST_BUS_OHCI2>, + <&ccu RST_BUS_EHCI2>; + phys = <&usbphy 2>; + phy-names = "usb"; + status = "disabled"; + }; + + ohci2: usb@5310400 { + compatible = "allwinner,sun50i-h616-ohci", + "generic-ohci"; + reg = <0x05310400 0x100>; + interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI2>, + <&ccu CLK_USB_OHCI2>; + resets = <&ccu RST_BUS_OHCI2>; + phys = <&usbphy 2>; + phy-names = "usb"; + status = "disabled"; + }; + + ehci3: usb@5311000 { + compatible = "allwinner,sun50i-h616-ehci", + "generic-ehci"; + reg = <0x05311000 0x100>; + interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI3>, + <&ccu CLK_BUS_EHCI3>, + <&ccu CLK_USB_OHCI3>; + resets = <&ccu RST_BUS_OHCI3>, + <&ccu RST_BUS_EHCI3>; + phys = <&usbphy 3>; + phy-names = "usb"; + status = "disabled"; + }; + + ohci3: usb@5311400 { + compatible = "allwinner,sun50i-h616-ohci", + "generic-ohci"; + reg = <0x05311400 0x100>; + interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_OHCI3>, + <&ccu CLK_USB_OHCI3>; + resets = <&ccu RST_BUS_OHCI3>; + phys = <&usbphy 3>; + phy-names = "usb"; + status = "disabled"; + }; + rtc: rtc@7000000 { compatible = "allwinner,sun50i-h616-rtc"; reg = <0x07000000 0x400>;
From: Marijn Suijten marijn.suijten@somainline.org
[ Upstream commit 7372b944a6ba5ac86628eaacc89ed4f103435cb9 ]
When enabling the APPS SMMU the mainline driver reconfigures the SMMU from its bootloader configuration, losing the stream mapping for (among which) the SDHCI hardware and breaking its ADMA feature. This feature can be disabled with:
sdhci.debug_quirks=0x40
But it is of course desired to have this feature enabled and working through the SMMU.
Signed-off-by: Marijn Suijten marijn.suijten@somainline.org Reviewed-by: Konrad Dybcio konrad.dybcio@somainline.org Reviewed-by: Luca Weiss luca.weiss@fairphone.com Tested-by: Luca Weiss luca.weiss@fairphone.com # sm7225-fairphone-fp4 Signed-off-by: Bjorn Andersson andersson@kernel.org Link: https://lore.kernel.org/r/20221030073232.22726-11-marijn.suijten@somainline.... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sm6350.dtsi | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi index d06aefdf3d9e..f4cf49b4848b 100644 --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi @@ -482,6 +482,7 @@ sdhc_1: mmc@7c4000 { interrupts = <GIC_SPI 641 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 644 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "hc_irq", "pwr_irq"; + iommus = <&apps_smmu 0x60 0x0>;
clocks = <&gcc GCC_SDCC1_AHB_CLK>, <&gcc GCC_SDCC1_APPS_CLK>, @@ -928,6 +929,7 @@ sdhc_2: mmc@8804000 { interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "hc_irq", "pwr_irq"; + iommus = <&apps_smmu 0x560 0x0>;
clocks = <&gcc GCC_SDCC2_AHB_CLK>, <&gcc GCC_SDCC2_APPS_CLK>,
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Sasha Levin