From cf4ce59b3b70238352c7f1729f0f7223214828ad Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 20 Sep 2024 01:46:19 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux add concurrent mode
---
kernel/arch/powerpc/include/asm/thread_info.h | 66 +++++++++++++++++++++------------
1 files changed, 42 insertions(+), 24 deletions(-)
diff --git a/kernel/arch/powerpc/include/asm/thread_info.h b/kernel/arch/powerpc/include/asm/thread_info.h
index 3c00020..ff31d2f 100644
--- a/kernel/arch/powerpc/include/asm/thread_info.h
+++ b/kernel/arch/powerpc/include/asm/thread_info.h
@@ -10,18 +10,36 @@
#define _ASM_POWERPC_THREAD_INFO_H
#include <asm/asm-const.h>
+#include <asm/page.h>
#ifdef __KERNEL__
-#define THREAD_SHIFT CONFIG_THREAD_SHIFT
+#ifdef CONFIG_KASAN
+#define MIN_THREAD_SHIFT (CONFIG_THREAD_SHIFT + 1)
+#else
+#define MIN_THREAD_SHIFT CONFIG_THREAD_SHIFT
+#endif
+
+#if defined(CONFIG_VMAP_STACK) && MIN_THREAD_SHIFT < PAGE_SHIFT
+#define THREAD_SHIFT PAGE_SHIFT
+#else
+#define THREAD_SHIFT MIN_THREAD_SHIFT
+#endif
#define THREAD_SIZE (1 << THREAD_SHIFT)
-#ifdef CONFIG_PPC64
-#define CURRENT_THREAD_INFO(dest, sp) stringify_in_c(clrrdi dest, sp, THREAD_SHIFT)
+/*
+ * By aligning VMAP'd stacks to 2 * THREAD_SIZE, we can detect overflow by
+ * checking sp & (1 << THREAD_SHIFT), which we can do cheaply in the entry
+ * assembly.
+ */
+#ifdef CONFIG_VMAP_STACK
+#define THREAD_ALIGN_SHIFT (THREAD_SHIFT + 1)
#else
-#define CURRENT_THREAD_INFO(dest, sp) stringify_in_c(rlwinm dest, sp, 0, 0, 31-THREAD_SHIFT)
+#define THREAD_ALIGN_SHIFT THREAD_SHIFT
#endif
+
+#define THREAD_ALIGN (1 << THREAD_ALIGN_SHIFT)
#ifndef __ASSEMBLY__
#include <linux/cache.h>
@@ -29,12 +47,11 @@
#include <asm/page.h>
#include <asm/accounting.h>
+#define SLB_PRELOAD_NR 16U
/*
* low level task data.
*/
struct thread_info {
- struct task_struct *task; /* main task structure */
- int cpu; /* cpu we're on */
int preempt_count; /* 0 => preemptable,
<0 => BUG */
unsigned long local_flags; /* private flags for thread */
@@ -44,6 +61,10 @@
#if defined(CONFIG_VIRT_CPU_ACCOUNTING_NATIVE) && defined(CONFIG_PPC32)
struct cpu_accounting_data accounting;
#endif
+ unsigned char slb_preload_nr;
+ unsigned char slb_preload_tail;
+ u32 slb_preload_esid[SLB_PRELOAD_NR];
+
/* low level flags - has atomic operations done on it */
unsigned long flags ____cacheline_aligned_in_smp;
};
@@ -53,8 +74,6 @@
*/
#define INIT_THREAD_INFO(tsk) \
{ \
- .task = &tsk, \
- .cpu = 0, \
.preempt_count = INIT_PREEMPT_COUNT, \
.flags = 0, \
}
@@ -62,16 +81,13 @@
#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
/* how to get the thread information struct from C */
-static inline struct thread_info *current_thread_info(void)
-{
- unsigned long val;
-
- asm (CURRENT_THREAD_INFO(%0,1) : "=r" (val));
-
- return (struct thread_info *)val;
-}
-
extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
+
+#ifdef CONFIG_PPC_BOOK3S_64
+void arch_setup_new_exec(void);
+#define arch_setup_new_exec arch_setup_new_exec
+#endif
+
#endif /* __ASSEMBLY__ */
/*
@@ -80,8 +96,8 @@
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
#define TIF_SIGPENDING 1 /* signal pending */
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
-#define TIF_FSCHECK 3 /* Check FS is USER_DS on return */
-#define TIF_32BIT 4 /* 32 bit binary */
+#define TIF_NOTIFY_SIGNAL 3 /* signal notifications exist */
+#define TIF_SYSCALL_EMU 4 /* syscall emulation active */
#define TIF_RESTORE_TM 5 /* need to restore TM FP/VEC/VSX */
#define TIF_PATCH_PENDING 6 /* pending live patching update */
#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
@@ -100,11 +116,13 @@
#define TIF_ELF2ABI 18 /* function descriptors must die! */
#endif
#define TIF_POLLING_NRFLAG 19 /* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_32BIT 20 /* 32 bit binary */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
+#define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_32BIT (1<<TIF_32BIT)
#define _TIF_RESTORE_TM (1<<TIF_RESTORE_TM)
@@ -119,15 +137,15 @@
#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
#define _TIF_EMULATE_STACK_STORE (1<<TIF_EMULATE_STACK_STORE)
#define _TIF_NOHZ (1<<TIF_NOHZ)
-#define _TIF_FSCHECK (1<<TIF_FSCHECK)
+#define _TIF_SYSCALL_EMU (1<<TIF_SYSCALL_EMU)
#define _TIF_SYSCALL_DOTRACE (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
_TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
- _TIF_NOHZ)
+ _TIF_NOHZ | _TIF_SYSCALL_EMU)
#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
_TIF_NOTIFY_RESUME | _TIF_UPROBE | \
_TIF_RESTORE_TM | _TIF_PATCH_PENDING | \
- _TIF_FSCHECK)
+ _TIF_NOTIFY_SIGNAL)
#define _TIF_PERSYSCALL_MASK (_TIF_RESTOREALL|_TIF_NOERROR)
/* Bits in local_flags */
@@ -150,10 +168,10 @@
return (ti->local_flags & flags) != 0;
}
-#ifdef CONFIG_PPC64
+#ifdef CONFIG_COMPAT
#define is_32bit_task() (test_thread_flag(TIF_32BIT))
#else
-#define is_32bit_task() (1)
+#define is_32bit_task() (IS_ENABLED(CONFIG_PPC32))
#endif
#if defined(CONFIG_PPC64)
--
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