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Xtensa fixes for v6.9:
- fix unused variable warning caused by empty flush_dcache_page() definition - fix stack unwinding on windowed noMMU XIP configurations - fix Coccinelle warning 'opportunity for min()' in xtensa ISS platform code -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEK2eFS5jlMn3N6xfYUfnMkfg/oEQFAmYzg8gTHGpjbXZia2Jj QGdtYWlsLmNvbQAKCRBR+cyR+D+gRKD2D/9IAjvtl7FCj8GerGCuzZY5QY3ut/jx jnH9hyO2Clw1ZwREOP6CcTD7ppR59ZH8Yi8h4c/0j5hhDHlLUdPxgJNzBFiDKhTD l7LWaWF3D4ZnqMPKkNbN8BTu3U23+/PenT7na0NruLBLLVgIPcSGXWHCCpr4PLDX oZ4daDjgju7R/vGXhrsb4g+1/t65RKwmP5eBCvWw9dY5iT5ItTuxh2ONsAaRmkEG aBZwlMez7jhnCHix5IgzEkaqg+BxQ/Db6ZFjrq17nCMereq8mQRZmQQTwH89Q37B Vs3HkMqwRpp2Xn1FxNClW4/x5qHaczPH3o3ga1ZJlvnD6gUzHeyMdAGn+1Lixrwk 4SEf6Lefsjkv6jIHyrc+rSr7bBW0pkvdJrZJEsg4PvhL1AW34oN9YNEuaYVLaoPH MjRYF59mT4k6prpuTe2umGbitqgcXqzYSIo/CUdEUIxZQg/7rnW+xSwgOXa681M0 ZnSKvPftB1On/6N9bwM48rOl1DufOMp65iqMD99ms1FsKk2n79Pw6Py1mjyWQw+X Bc73C+O4MLw/NgKel5f3Ez+tVefM6RBCw81ot2WFGpS3xcT1FyWno82+QvmyB1jJ 9H+fHlbTDt6jm1h5jdm5M5vLxt0ScL1VHcYnPeLwpplM1+aMTLt7zljnZc7Mu4yz 7vo+KrAUsHJKUg== =GG+I -----END PGP SIGNATURE----- Merge tag 'xtensa-20240502' of https://github.com/jcmvbkbc/linux-xtensa Pull xtensa fixes from Max Filippov: - fix unused variable warning caused by empty flush_dcache_page() definition - fix stack unwinding on windowed noMMU XIP configurations - fix Coccinelle warning 'opportunity for min()' in xtensa ISS platform code * tag 'xtensa-20240502' of https://github.com/jcmvbkbc/linux-xtensa: xtensa: remove redundant flush_dcache_page and ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE macros tty: xtensa/iss: Use min() to fix Coccinelle warning xtensa: fix MAKE_PC_FROM_RA second argument
This commit is contained in:
Linus Torvalds
commit
09bf0f196f
@ -100,6 +100,10 @@ void flush_cache_range(struct vm_area_struct*, ulong, ulong);
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void flush_icache_range(unsigned long start, unsigned long end);
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void flush_cache_page(struct vm_area_struct*,
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unsigned long, unsigned long);
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#define flush_cache_all flush_cache_all
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#define flush_cache_range flush_cache_range
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#define flush_icache_range flush_icache_range
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#define flush_cache_page flush_cache_page
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#else
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#define flush_cache_all local_flush_cache_all
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#define flush_cache_range local_flush_cache_range
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@ -136,20 +140,7 @@ void local_flush_cache_page(struct vm_area_struct *vma,
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#else
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#define flush_cache_all() do { } while (0)
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#define flush_cache_mm(mm) do { } while (0)
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#define flush_cache_dup_mm(mm) do { } while (0)
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#define flush_cache_vmap(start,end) do { } while (0)
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#define flush_cache_vmap_early(start,end) do { } while (0)
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#define flush_cache_vunmap(start,end) do { } while (0)
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
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#define flush_dcache_page(page) do { } while (0)
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#define flush_icache_range local_flush_icache_range
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#define flush_cache_page(vma, addr, pfn) do { } while (0)
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#define flush_cache_range(vma, start, end) do { } while (0)
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#endif
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@ -162,15 +153,14 @@ void local_flush_cache_page(struct vm_area_struct *vma,
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__invalidate_icache_range(start,(end) - (start)); \
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} while (0)
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#define flush_dcache_mmap_lock(mapping) do { } while (0)
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#define flush_dcache_mmap_unlock(mapping) do { } while (0)
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#if defined(CONFIG_MMU) && (DCACHE_WAY_SIZE > PAGE_SIZE)
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extern void copy_to_user_page(struct vm_area_struct*, struct page*,
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unsigned long, void*, const void*, unsigned long);
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extern void copy_from_user_page(struct vm_area_struct*, struct page*,
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unsigned long, void*, const void*, unsigned long);
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#define copy_to_user_page copy_to_user_page
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#define copy_from_user_page copy_from_user_page
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#else
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@ -186,4 +176,6 @@ extern void copy_from_user_page(struct vm_area_struct*, struct page*,
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#endif
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#include <asm-generic/cacheflush.h>
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#endif /* _XTENSA_CACHEFLUSH_H */
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@ -115,9 +115,9 @@
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#define MAKE_RA_FOR_CALL(ra,ws) (((ra) & 0x3fffffff) | (ws) << 30)
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/* Convert return address to a valid pc
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* Note: We assume that the stack pointer is in the same 1GB ranges as the ra
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* Note: 'text' is the address within the same 1GB range as the ra
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*/
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#define MAKE_PC_FROM_RA(ra,sp) (((ra) & 0x3fffffff) | ((sp) & 0xc0000000))
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#define MAKE_PC_FROM_RA(ra, text) (((ra) & 0x3fffffff) | ((unsigned long)(text) & 0xc0000000))
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#elif defined(__XTENSA_CALL0_ABI__)
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@ -127,9 +127,9 @@
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#define MAKE_RA_FOR_CALL(ra, ws) (ra)
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/* Convert return address to a valid pc
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* Note: We assume that the stack pointer is in the same 1GB ranges as the ra
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* Note: 'text' is not used as 'ra' is always the full address
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*/
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#define MAKE_PC_FROM_RA(ra, sp) (ra)
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#define MAKE_PC_FROM_RA(ra, text) (ra)
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#else
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#error Unsupported Xtensa ABI
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@ -87,7 +87,7 @@ struct pt_regs {
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# define user_mode(regs) (((regs)->ps & 0x00000020)!=0)
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# define instruction_pointer(regs) ((regs)->pc)
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# define return_pointer(regs) (MAKE_PC_FROM_RA((regs)->areg[0], \
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(regs)->areg[1]))
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(regs)->pc))
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# ifndef CONFIG_SMP
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# define profile_pc(regs) instruction_pointer(regs)
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@ -47,6 +47,7 @@
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#include <asm/asm-offsets.h>
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#include <asm/regs.h>
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#include <asm/hw_breakpoint.h>
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#include <asm/sections.h>
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#include <asm/traps.h>
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extern void ret_from_fork(void);
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@ -380,7 +381,7 @@ unsigned long __get_wchan(struct task_struct *p)
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int count = 0;
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sp = p->thread.sp;
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pc = MAKE_PC_FROM_RA(p->thread.ra, p->thread.sp);
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pc = MAKE_PC_FROM_RA(p->thread.ra, _text);
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do {
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if (sp < stack_page + sizeof(struct task_struct) ||
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@ -392,7 +393,7 @@ unsigned long __get_wchan(struct task_struct *p)
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/* Stack layout: sp-4: ra, sp-3: sp' */
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pc = MAKE_PC_FROM_RA(SPILL_SLOT(sp, 0), sp);
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pc = MAKE_PC_FROM_RA(SPILL_SLOT(sp, 0), _text);
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sp = SPILL_SLOT(sp, 1);
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} while (count++ < 16);
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return 0;
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@ -13,6 +13,7 @@
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#include <linux/stacktrace.h>
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#include <asm/ftrace.h>
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#include <asm/sections.h>
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#include <asm/stacktrace.h>
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#include <asm/traps.h>
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#include <linux/uaccess.h>
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@ -189,7 +190,7 @@ void walk_stackframe(unsigned long *sp,
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if (a1 <= (unsigned long)sp)
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break;
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frame.pc = MAKE_PC_FROM_RA(a0, a1);
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frame.pc = MAKE_PC_FROM_RA(a0, _text);
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frame.sp = a1;
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if (fn(&frame, data))
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@ -166,10 +166,8 @@ late_initcall(rs_init);
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static void iss_console_write(struct console *co, const char *s, unsigned count)
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{
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if (s && *s != 0) {
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int len = strlen(s);
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simc_write(1, s, count < len ? count : len);
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}
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if (s && *s != 0)
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simc_write(1, s, min(count, strlen(s)));
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}
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static struct tty_driver* iss_console_device(struct console *c, int *index)
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