add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/arch/arc/include/asm/processor.h
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@@ -1,9 +1,6 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  *
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  * vineetg: March 2009
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  *  -Implemented task_pt_regs( )
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@@ -17,22 +14,8 @@
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 #ifndef __ASSEMBLY__
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 #include <asm/ptrace.h>
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-
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-#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
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-/* These DPFP regs need to be saved/restored across ctx-sw */
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-struct arc_fpu {
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-	struct {
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-		unsigned int l, h;
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-	} aux_dpfp[2];
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-};
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-#endif
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-
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-#ifdef CONFIG_ARC_PLAT_EZNPS
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-struct eznps_dp {
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-	unsigned int eflags;
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-	unsigned int gpa1;
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-};
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-#endif
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+#include <asm/dsp.h>
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+#include <asm/fpu.h>
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 /* Arch specific stuff which needs to be saved per task.
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  * However these items are not so important so as to earn a place in
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@@ -42,11 +25,11 @@
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 	unsigned long ksp;	/* kernel mode stack pointer */
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 	unsigned long callee_reg;	/* pointer to callee regs */
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 	unsigned long fault_address;	/* dbls as brkpt holder as well */
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+#ifdef CONFIG_ARC_DSP_SAVE_RESTORE_REGS
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+	struct dsp_callee_regs dsp;
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+#endif
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 #ifdef CONFIG_ARC_FPU_SAVE_RESTORE
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 	struct arc_fpu fpu;
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-#endif
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-#ifdef CONFIG_ARC_PLAT_EZNPS
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-	struct eznps_dp dp;
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 #endif
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 };
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@@ -67,16 +50,7 @@
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  * A lot of busy-wait loops in SMP are based off of non-volatile data otherwise
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  * get optimised away by gcc
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  */
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-#ifndef CONFIG_EZNPS_MTM_EXT
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-
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 #define cpu_relax()		barrier()
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-
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-#else
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-
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-#define cpu_relax()     \
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-	__asm__ __volatile__ (".word %0" : : "i"(CTOP_INST_SCHD_RW) : "memory")
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-
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-#endif
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 #define KSTK_EIP(tsk)   (task_pt_regs(tsk)->ret)
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 #define KSTK_ESP(tsk)   (task_pt_regs(tsk)->sp)
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@@ -97,14 +71,6 @@
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 			 unsigned long usp);
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 extern unsigned int get_wchan(struct task_struct *p);
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-
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-/*
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- * Default implementation of macro that returns current
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- * instruction pointer ("program counter").
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- * Should the PC register be read instead ? This macro does not seem to
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- * be used in many places so this wont be all that bad.
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- */
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-#define current_text_addr() ({ __label__ _l; _l: &&_l; })
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 #endif /* !__ASSEMBLY__ */
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@@ -133,25 +99,7 @@
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 #define USER_KERNEL_GUTTER    (VMALLOC_START - TASK_SIZE)
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-#ifdef CONFIG_ARC_PLAT_EZNPS
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-/* NPS architecture defines special window of 129M in user address space for
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- * special memory areas, when accessing this window the MMU do not use TLB.
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- * Instead MMU direct the access to:
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- * 0x57f00000:0x57ffffff -- 1M of closely coupled memory (aka CMEM)
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- * 0x58000000:0x5fffffff -- 16 huge pages, 8M each, with fixed map (aka FMTs)
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- *
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- * CMEM - is the fastest memory we got and its size is 16K.
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- * FMT  - is used to map either to internal/external memory.
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- * Internal memory is the second fast memory and its size is 16M
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- * External memory is the biggest memory (16G) and also the slowest.
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- *
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- * STACK_TOP need to be PMD align (21bit) that is why we supply 0x57e00000.
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- */
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-#define STACK_TOP       0x57e00000
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-#else
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 #define STACK_TOP       TASK_SIZE
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-#endif
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-
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 #define STACK_TOP_MAX   STACK_TOP
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 /* This decides where the kernel will search for a free chunk of vm