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SubjectRe: 2.5.24 doesn't compile on Alpha
On Fri, Jun 21, 2002 at 04:19:57PM +0200, Jurriaan on Alpha wrote:
> I tried #define smp_num_cpus 1 in include/asm-alpha/smp.h (the non-smp
> section) but the same line in include/asm/mmu_context.h works - for a
> while.

I'm running 2.5.24 on sx164 with following (unfinished - SMP is broken)
patch.

Ivan.

--- 2.5.24/drivers/char/rtc.c Mon Jun 3 05:44:47 2002
+++ linux/drivers/char/rtc.c Fri Jun 21 18:07:57 2002
@@ -870,7 +870,9 @@ no_irq:

if (misc_register(&rtc_dev))
{
+#if RTC_IRQ
free_irq(RTC_IRQ, NULL);
+#endif
release_region(RTC_PORT(0), RTC_IO_EXTENT);
return -ENODEV;
}
--- 2.5.24/arch/alpha/lib/stxcpy.S Mon Jun 3 05:44:44 2002
+++ linux/arch/alpha/lib/stxcpy.S Fri Jun 21 18:07:57 2002
@@ -20,7 +20,7 @@
* Furthermore, v0, a3-a5, t11, and t12 are untouched.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noat
.set noreorder
--- 2.5.24/arch/alpha/lib/ev6-stxcpy.S Mon Jun 3 05:44:37 2002
+++ linux/arch/alpha/lib/ev6-stxcpy.S Fri Jun 21 18:07:57 2002
@@ -30,7 +30,7 @@
* Try not to change the actual algorithm if possible for consistency.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noat
.set noreorder
--- 2.5.24/arch/alpha/lib/ev6-stxncpy.S Mon Jun 3 05:44:52 2002
+++ linux/arch/alpha/lib/ev6-stxncpy.S Fri Jun 21 18:07:57 2002
@@ -38,7 +38,7 @@
* Try not to change the actual algorithm if possible for consistency.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noat
.set noreorder
--- 2.5.24/arch/alpha/lib/strncpy_from_user.S Mon Jun 3 05:44:41 2002
+++ linux/arch/alpha/lib/strncpy_from_user.S Fri Jun 21 18:07:57 2002
@@ -12,7 +12,7 @@


#include <asm/errno.h>
-#include <alpha/regdef.h>
+#include <asm/regdef.h>


/* Allow an exception for an insn; exit if we get one. */
--- 2.5.24/arch/alpha/lib/stxncpy.S Mon Jun 3 05:44:48 2002
+++ linux/arch/alpha/lib/stxncpy.S Fri Jun 21 18:07:57 2002
@@ -28,7 +28,7 @@
* Furthermore, v0, a3-a5, t11, t12, and $at are untouched.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noat
.set noreorder
--- 2.5.24/arch/alpha/lib/ev67-strlen_user.S Mon Jun 3 05:44:48 2002
+++ linux/arch/alpha/lib/ev67-strlen_user.S Fri Jun 21 18:07:57 2002
@@ -23,7 +23,7 @@
* Try not to change the actual algorithm if possible for consistency.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>


/* Allow an exception for an insn; exit if we get one. */
--- 2.5.24/arch/alpha/lib/strchr.S Mon Jun 3 05:44:49 2002
+++ linux/arch/alpha/lib/strchr.S Fri Jun 21 18:07:57 2002
@@ -6,7 +6,7 @@
* string, or null if it is not found.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noreorder
.set noat
--- 2.5.24/arch/alpha/lib/strlen_user.S Mon Jun 3 05:44:50 2002
+++ linux/arch/alpha/lib/strlen_user.S Fri Jun 21 18:07:57 2002
@@ -12,7 +12,7 @@
* boundary when doing so.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>


/* Allow an exception for an insn; exit if we get one. */
--- 2.5.24/arch/alpha/lib/ev67-strrchr.S Mon Jun 3 05:44:50 2002
+++ linux/arch/alpha/lib/ev67-strrchr.S Fri Jun 21 18:07:57 2002
@@ -19,7 +19,7 @@
*/


-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noreorder
.set noat
--- 2.5.24/arch/alpha/lib/ev67-strchr.S Mon Jun 3 05:44:50 2002
+++ linux/arch/alpha/lib/ev67-strchr.S Fri Jun 21 18:07:57 2002
@@ -16,7 +16,7 @@
* Try not to change the actual algorithm if possible for consistency.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noreorder
.set noat
--- 2.5.24/arch/alpha/lib/strrchr.S Mon Jun 3 05:44:52 2002
+++ linux/arch/alpha/lib/strrchr.S Fri Jun 21 18:07:57 2002
@@ -6,7 +6,7 @@
* within a null-terminated string, or null if it is not found.
*/

-#include <alpha/regdef.h>
+#include <asm/regdef.h>

.set noreorder
.set noat
--- 2.5.24/arch/alpha/lib/ev6-strncpy_from_user.S Mon Jun 3 05:44:53 2002
+++ linux/arch/alpha/lib/ev6-strncpy_from_user.S Fri Jun 21 18:07:57 2002
@@ -27,7 +27,7 @@


#include <asm/errno.h>
-#include <alpha/regdef.h>
+#include <asm/regdef.h>


/* Allow an exception for an insn; exit if we get one. */
--- 2.5.24/arch/alpha/kernel/pci.c Mon Jun 3 05:44:41 2002
+++ linux/arch/alpha/kernel/pci.c Fri Jun 21 18:07:58 2002
@@ -190,12 +190,12 @@ pcibios_align_resource(void *data, struc
#undef MB
#undef GB

-static void __init
+static int __init
pcibios_init(void)
{
- if (!alpha_mv.init_pci)
- return;
- alpha_mv.init_pci();
+ if (alpha_mv.init_pci)
+ alpha_mv.init_pci();
+ return 0;
}

subsys_initcall(pcibios_init);
--- 2.5.24/arch/alpha/kernel/signal.c Mon Jun 10 14:25:18 2002
+++ linux/arch/alpha/kernel/signal.c Fri Jun 21 18:07:57 2002
@@ -18,6 +18,7 @@
#include <linux/smp_lock.h>
#include <linux/stddef.h>
#include <linux/tty.h>
+#include <linux/binfmts.h>

#include <asm/bitops.h>
#include <asm/uaccess.h>
--- 2.5.24/arch/alpha/kernel/osf_sys.c Mon Jun 10 14:25:18 2002
+++ linux/arch/alpha/kernel/osf_sys.c Fri Jun 21 18:07:57 2002
@@ -33,6 +33,7 @@
#include <linux/file.h>
#include <linux/types.h>
#include <linux/ipc.h>
+#include <linux/namei.h>

#include <asm/fpu.h>
#include <asm/io.h>
--- 2.5.24/arch/alpha/kernel/alpha_ksyms.c Mon Jun 3 05:44:41 2002
+++ linux/arch/alpha/kernel/alpha_ksyms.c Fri Jun 21 18:07:58 2002
@@ -214,7 +214,6 @@ EXPORT_SYMBOL(flush_tlb_page);
EXPORT_SYMBOL(smp_imb);
EXPORT_SYMBOL(cpu_data);
EXPORT_SYMBOL(__cpu_number_map);
-EXPORT_SYMBOL(smp_num_cpus);
EXPORT_SYMBOL(smp_call_function);
EXPORT_SYMBOL(smp_call_function_on_cpu);
EXPORT_SYMBOL(global_irq_holder);
--- 2.5.24/arch/alpha/kernel/setup.c Thu Jun 20 14:27:39 2002
+++ linux/arch/alpha/kernel/setup.c Fri Jun 21 18:09:36 2002
@@ -1109,7 +1109,7 @@ show_cpuinfo(struct seq_file *f, void *s
#ifdef CONFIG_SMP
seq_printf(f, "cpus active\t\t: %d\n"
"cpu active mask\t\t: %016lx\n",
- smp_num_cpus, cpu_present_mask);
+ num_online_cpus(), cpu_present_mask);
#endif

return 0;
--- 2.5.24/include/asm-alpha/page.h Mon Jun 3 05:44:52 2002
+++ linux/include/asm-alpha/page.h Fri Jun 21 18:07:58 2002
@@ -15,10 +15,10 @@
#define STRICT_MM_TYPECHECKS

extern void clear_page(void *page);
-#define clear_user_page(page, vaddr) clear_page(page)
+#define clear_user_page(page, vaddr, pg) clear_page(page)

extern void copy_page(void * _to, void * _from);
-#define copy_user_page(to, from, vaddr) copy_page(to, from)
+#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)

#ifdef STRICT_MM_TYPECHECKS
/*
@@ -95,8 +95,12 @@ extern __inline__ int get_order(unsigned
#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
#ifndef CONFIG_DISCONTIGMEM
-#define virt_to_page(kaddr) (mem_map + (__pa(kaddr) >> PAGE_SHIFT))
-#define VALID_PAGE(page) (((page) - mem_map) < max_mapnr)
+#define pfn_to_page(pfn) (mem_map + (pfn))
+#define page_to_pfn(page) ((unsigned long)((page) - mem_map))
+#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+
+#define pfn_valid(pfn) ((pfn) < max_mapnr)
+#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
#endif /* CONFIG_DISCONTIGMEM */

#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
--- 2.5.24/include/asm-alpha/pgtable.h Mon Jun 3 05:44:45 2002
+++ linux/include/asm-alpha/pgtable.h Fri Jun 21 18:07:58 2002
@@ -179,11 +179,12 @@ extern unsigned long __zero_page(void);
#endif
#if defined(CONFIG_ALPHA_GENERIC) || \
(defined(CONFIG_ALPHA_EV6) && !defined(USE_48_BIT_KSEG))
-#define PHYS_TWIDDLE(phys) \
- ((((phys) & 0xc0000000000UL) == 0x40000000000UL) \
- ? ((phys) ^= 0xc0000000000UL) : (phys))
+#define KSEG_PFN (0xc0000000000UL >> PAGE_SHIFT)
+#define PHYS_TWIDDLE(pfn) \
+ ((((pfn) & KSEG_PFN) == (0x40000000000UL >> PAGE_SHIFT)) \
+ ? ((pfn) ^= KSEG_PFN) : (pfn))
#else
-#define PHYS_TWIDDLE(phys) (phys)
+#define PHYS_TWIDDLE(pfn) (pfn)
#endif

/*
@@ -199,12 +200,13 @@ extern unsigned long __zero_page(void);
#endif

#ifndef CONFIG_DISCONTIGMEM
+#define pte_pfn(pte) (pte_val(pte) >> 32)
+#define pte_page(pte) pfn_to_page(pte_pfn(pte))
#define mk_pte(page, pgprot) \
({ \
pte_t pte; \
\
- pte_val(pte) = ((unsigned long)(page - mem_map) << 32) | \
- pgprot_val(pgprot); \
+ pte_val(pte) = (page_to_pfn(page) << 32) | pgprot_val(pgprot); \
pte; \
})
#else
@@ -219,10 +221,20 @@ extern unsigned long __zero_page(void);
\
pte; \
})
+#define pte_page(x) \
+({ \
+ unsigned long kvirt; \
+ struct page * __xx; \
+ \
+ kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT)); \
+ __xx = virt_to_page(kvirt); \
+ \
+ __xx; \
+})
#endif

-extern inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot)
-{ pte_t pte; pte_val(pte) = (PHYS_TWIDDLE(physpage) << (32-PAGE_SHIFT)) | pgprot_val(pgprot); return pte; }
+extern inline pte_t pfn_pte(unsigned long physpfn, pgprot_t pgprot)
+{ pte_t pte; pte_val(pte) = (PHYS_TWIDDLE(physpfn) << 32) | pgprot_val(pgprot); return pte; }

extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{ pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
@@ -233,20 +245,6 @@ extern inline void pmd_set(pmd_t * pmdp,
extern inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
{ pgd_val(*pgdp) = _PAGE_TABLE | ((((unsigned long) pmdp) - PAGE_OFFSET) << (32-PAGE_SHIFT)); }

-#ifndef CONFIG_DISCONTIGMEM
-#define pte_page(x) (mem_map+(unsigned long)((pte_val(x) >> 32)))
-#else
-#define pte_page(x) \
-({ \
- unsigned long kvirt; \
- struct page * __xx; \
- \
- kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT)); \
- __xx = virt_to_page(kvirt); \
- \
- __xx; \
-})
-#endif

extern inline unsigned long
pmd_page_kernel(pmd_t pmd)
--- 2.5.24/include/asm-alpha/tlb.h Mon Jun 3 05:44:48 2002
+++ linux/include/asm-alpha/tlb.h Fri Jun 21 18:07:58 2002
@@ -1 +1,15 @@
+#ifndef _ALPHA_TLB_H
+#define _ALPHA_TLB_H
+
+#define tlb_start_vma(tlb, vma) do { } while (0)
+#define tlb_end_vma(tlb, vma) do { } while (0)
+#define tlb_remove_tlb_entry(tlb, pte, addr) do { } while (0)
+
+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
+
#include <asm-generic/tlb.h>
+
+#define pte_free_tlb(tlb,pte) pte_free(pte)
+#define pmd_free_tlb(tlb,pmd) pmd_free(pmd)
+
+#endif
--- 2.5.24/include/asm-alpha/bitops.h Mon Jun 3 05:44:49 2002
+++ linux/include/asm-alpha/bitops.h Fri Jun 21 18:07:58 2002
@@ -315,6 +315,20 @@ static inline int ffs(int word)
return word ? result+1 : 0;
}

+/*
+ * fls: find last bit set.
+ */
+#if defined(__alpha_cix__) && defined(__alpha_fix__)
+static inline int fls(int word)
+{
+ long result;
+ __asm__("ctlz %1,%0" : "=r"(result) : "r"(word & 0xffffffff));
+ return 64 - result;
+}
+#else
+#define fls generic_fls
+#endif
+
/* Compute powers of two for the given integer. */
static inline int floor_log2(unsigned long word)
{
--- 2.5.24/include/asm-alpha/regdef.h Thu Jan 1 00:00:00 1970
+++ linux/include/asm-alpha/regdef.h Fri Jun 21 18:07:58 2002
@@ -0,0 +1,44 @@
+#ifndef __alpha_regdef_h__
+#define __alpha_regdef_h__
+
+#define v0 $0 /* function return value */
+
+#define t0 $1 /* temporary registers (caller-saved) */
+#define t1 $2
+#define t2 $3
+#define t3 $4
+#define t4 $5
+#define t5 $6
+#define t6 $7
+#define t7 $8
+
+#define s0 $9 /* saved-registers (callee-saved registers) */
+#define s1 $10
+#define s2 $11
+#define s3 $12
+#define s4 $13
+#define s5 $14
+#define s6 $15
+#define fp s6 /* frame-pointer (s6 in frame-less procedures) */
+
+#define a0 $16 /* argument registers (caller-saved) */
+#define a1 $17
+#define a2 $18
+#define a3 $19
+#define a4 $20
+#define a5 $21
+
+#define t8 $22 /* more temps (caller-saved) */
+#define t9 $23
+#define t10 $24
+#define t11 $25
+#define ra $26 /* return address register */
+#define t12 $27
+
+#define pv t12 /* procedure-variable register */
+#define AT $at /* assembler temporary */
+#define gp $29 /* global pointer */
+#define sp $30 /* stack pointer */
+#define zero $31 /* reads as zero, writes are noops */
+
+#endif /* __alpha_regdef_h__ */
--- 2.5.24/include/asm-alpha/hardirq.h Mon Jun 3 05:44:41 2002
+++ linux/include/asm-alpha/hardirq.h Fri Jun 21 18:07:58 2002
@@ -56,7 +56,7 @@ static inline int irqs_running (void)
{
int i;

- for (i = 0; i < smp_num_cpus; i++)
+ for (i = 0; i < NR_CPUS; i++)
if (local_irq_count(i))
return 1;
return 0;
--- 2.5.24/include/asm-alpha/mmu_context.h Mon Jun 3 05:44:50 2002
+++ linux/include/asm-alpha/mmu_context.h Fri Jun 21 18:07:58 2002
@@ -227,8 +227,9 @@ init_new_context(struct task_struct *tsk
{
int i;

- for (i = 0; i < smp_num_cpus; i++)
- mm->context[cpu_logical_map(i)] = 0;
+ for (i = 0; i < NR_CPUS; i++)
+ if (cpu_online(i))
+ mm->context[i] = 0;
tsk->thread_info->pcb.ptbr
= ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
return 0;
--- 2.5.24/include/asm-alpha/smp.h Mon Jun 3 05:44:47 2002
+++ linux/include/asm-alpha/smp.h Fri Jun 21 18:07:58 2002
@@ -42,15 +42,6 @@ extern struct cpuinfo_alpha cpu_data[NR_

#define PROC_CHANGE_PENALTY 20

-/* Map from cpu id to sequential logical cpu number. This will only
- not be idempotent when cpus failed to come on-line. */
-extern int __cpu_number_map[NR_CPUS];
-#define cpu_number_map(cpu) __cpu_number_map[cpu]
-
-/* The reverse map from sequential logical cpu number to cpu id. */
-extern int __cpu_logical_map[NR_CPUS];
-#define cpu_logical_map(cpu) __cpu_logical_map[cpu]
-
#define hard_smp_processor_id() __hard_smp_processor_id()
#define smp_processor_id() (current_thread_info()->cpu)

--- 2.5.24/include/asm-alpha/system.h Mon Jun 3 05:44:51 2002
+++ linux/include/asm-alpha/system.h Fri Jun 21 18:07:58 2002
@@ -130,8 +130,12 @@ struct el_common_EV6_mcheck {
extern void halt(void) __attribute__((noreturn));
#define __halt() __asm__ __volatile__ ("call_pal %0 #halt" : : "i" (PAL_halt))

-#define prepare_to_switch() do { } while(0)
-#define switch_to(prev,next) \
+#define prepare_arch_schedule(prev) do { } while(0)
+#define finish_arch_schedule(prev) do { } while(0)
+#define prepare_arch_switch(rq) do { } while(0)
+#define finish_arch_switch(rq) spin_unlock_irq(&(rq)->lock)
+
+#define switch_to(prev,next,last) \
do { \
alpha_switch_to(virt_to_phys(&(next)->thread_info->pcb), (prev)); \
check_mmu_context(); \
-
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