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[linux-6.6.y]Loongarch driver fixes and backport #674

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Merged
Avenger-285714 merged 7 commits into from
Mar 26, 2025
Merged

[linux-6.6.y]Loongarch driver fixes and backport #674

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6f54d46
drivers/char: add ACPI firmware support for Loongson SE driver
AaronDot Mar 19, 2025
698cd28
ALSA: hda: Add AZX_DCAPS_NO_TCSEL flag for Loongson HDA devices
AaronDot Mar 19, 2025
984bede
LoongArch: Correct the cacheinfo sharing information
AaronDot Mar 19, 2025
ed17da9
LoongArch: set CONFIG_CMA_SIZE_MBYTES to 0
AaronDot Mar 19, 2025
c279e60
ice: fix unaligned access in ice_create_lag_recipe
AaronDot Mar 19, 2025
af4003e
blutetooth/btusb: delay 1ms while suspending
AaronDot Mar 19, 2025
7a8bfa3
Merge branch 'linux-6.6.y' into loongarch-sync
Mar 26, 2025
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1 change: 1 addition & 0 deletions arch/loongarch/configs/loongson3_defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -2184,6 +2184,7 @@ CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC7=m
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
CONFIG_BOOT_PRINTK_DELAY=y
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6 changes: 6 additions & 0 deletions arch/loongarch/kernel/cacheinfo.c
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Expand Up @@ -51,6 +51,12 @@ static void cache_cpumap_setup(unsigned int cpu)
continue;

sib_leaf = sib_cpu_ci->info_list + index;
/* SMT cores share all caches */
if (cpus_are_siblings(i, cpu)) {
cpumask_set_cpu(cpu, &sib_leaf->shared_cpu_map);
cpumask_set_cpu(i, &this_leaf->shared_cpu_map);
}
/* Node's cores share shared caches */
if (cache_leaves_are_shared(this_leaf, sib_leaf)) {
cpumask_set_cpu(cpu, &sib_leaf->shared_cpu_map);
cpumask_set_cpu(i, &this_leaf->shared_cpu_map);
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3 changes: 3 additions & 0 deletions drivers/bluetooth/btusb.c
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Expand Up @@ -4113,6 +4113,9 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
if (data->suspend_count++)
return 0;

#ifdef CONFIG_LOONGARCH
mdelay(1);
Comment on lines +4116 to +4117
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@sourcery-ai sourcery-ai bot Mar 19, 2025

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question (performance): Added delay in btusb suspend on Loongarch.

The 1ms delay introduced for Loongarch platforms appears intended to allow hardware settling. Confirm that this delay is sufficient and does not adversely affect system suspend latency across all targeted devices.

#endif
spin_lock_irq(&data->txlock);
if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
set_bit(BTUSB_SUSPENDING, &data->flags);
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