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Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  MIPS: 64-bit: Detect virtual memory size
  MIPS: AR7: Fix USB slave mem range typo
  MIPS: Alchemy: Fix dbdma ring destruction memory debugcheck.
This commit is contained in:
Linus Torvalds 2010-02-02 12:45:33 -08:00
parent 7ab02af428 91dfc423cc
commit e770a0f115
7 changed files with 31 additions and 4 deletions
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7
arch/mips/alchemy/common/dbdma.c
View File

@ -412,8 +412,11 @@ u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
if (desc_base == 0)
return 0;
ctp->cdb_membase = desc_base;
desc_base = ALIGN_ADDR(desc_base, sizeof(au1x_ddma_desc_t));
}
} else
ctp->cdb_membase = desc_base;
dp = (au1x_ddma_desc_t *)desc_base;
/* Keep track of the base descriptor. */
@ -831,7 +834,7 @@ void au1xxx_dbdma_chan_free(u32 chanid)
au1xxx_dbdma_stop(chanid);
kfree((void *)ctp->chan_desc_base);
kfree((void *)ctp->cdb_membase);
stp->dev_flags &= ~DEV_FLAGS_INUSE;
dtp->dev_flags &= ~DEV_FLAGS_INUSE;

2
arch/mips/ar7/platform.c
View File

@ -202,7 +202,7 @@ static struct resource usb_res[] = {
.name = "mem",
.flags = IORESOURCE_MEM,
.start = 0x03400000,
.end = 0x034001fff,
.end = 0x03401fff,
},
};

7
arch/mips/include/asm/cpu-features.h
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@ -191,6 +191,9 @@
# ifndef cpu_has_64bit_addresses
# define cpu_has_64bit_addresses 0
# endif
# ifndef cpu_vmbits
# define cpu_vmbits 31
# endif
#endif
#ifdef CONFIG_64BIT
@ -209,6 +212,10 @@
# ifndef cpu_has_64bit_addresses
# define cpu_has_64bit_addresses 1
# endif
# ifndef cpu_vmbits
# define cpu_vmbits cpu_data[0].vmbits
# define __NEED_VMBITS_PROBE
# endif
#endif
#if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint)

3
arch/mips/include/asm/cpu-info.h
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@ -58,6 +58,9 @@ struct cpuinfo_mips {
struct cache_desc tcache; /* Tertiary/split secondary cache */
int srsets; /* Shadow register sets */
int core; /* physical core number */
#ifdef CONFIG_64BIT
int vmbits; /* Virtual memory size in bits */
#endif
#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC)
/*
* In the MIPS MT "SMTC" model, each TC is considered

1
arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
View File

@ -305,6 +305,7 @@ typedef struct dbdma_chan_config {
dbdev_tab_t *chan_dest;
au1x_dma_chan_t *chan_ptr;
au1x_ddma_desc_t *chan_desc_base;
u32 cdb_membase; /* kmalloc base of above */
au1x_ddma_desc_t *get_ptr, *put_ptr, *cur_ptr;
void *chan_callparam;
void (*chan_callback)(int, void *);

4
arch/mips/include/asm/pgtable-64.h
View File

@ -110,7 +110,9 @@
#define VMALLOC_START MAP_BASE
#define VMALLOC_END \
(VMALLOC_START + \
PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE - (1UL << 32))
min(PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, \
(1UL << cpu_vmbits)) - (1UL << 32))
#if defined(CONFIG_MODULES) && defined(KBUILD_64BIT_SYM32) && \
VMALLOC_START != CKSSEG
/* Load modules into 32bit-compatible segment. */

11
arch/mips/kernel/cpu-probe.c
View File

@ -284,6 +284,15 @@ static inline int __cpu_has_fpu(void)
return ((cpu_get_fpu_id() & 0xff00) != FPIR_IMP_NONE);
}
static inline void cpu_probe_vmbits(struct cpuinfo_mips *c)
{
#ifdef __NEED_VMBITS_PROBE
write_c0_entryhi(0x3ffffffffffff000ULL);
back_to_back_c0_hazard();
c->vmbits = fls64(read_c0_entryhi() & 0x3ffffffffffff000ULL);
#endif
}
#define R4K_OPTS (MIPS_CPU_TLB | MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE \
| MIPS_CPU_COUNTER)
@ -969,6 +978,8 @@ __cpuinit void cpu_probe(void)
c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
else
c->srsets = 1;
cpu_probe_vmbits(c);
}
__cpuinit void cpu_report(void)