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MIPS: Octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB 

The config option CAVIUM_RESERVE32_USE_WIRED_TLB is not supported.
Remove the dead code controlled by it.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1028/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2010-03-03 11:07:07 -08:00 committed by Ralf Baechle
parent 1874a08860
commit 1ef2887030
1 changed files with 1 additions and 66 deletions
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67
arch/mips/cavium-octeon/setup.c
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@ -186,54 +186,6 @@ void octeon_check_cpu_bist(void)
write_octeon_c0_dcacheerr(0); write_octeon_c0_dcacheerr(0);
} }
#ifdef CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB
/**
* Called on every core to setup the wired tlb entry needed
* if CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB is set.
*
*/
static void octeon_hal_setup_per_cpu_reserved32(void *unused)
{
/*
* The config has selected to wire the reserve32 memory for all
* userspace applications. We need to put a wired TLB entry in for each
* 512MB of reserve32 memory. We only handle double 256MB pages here,
* so reserve32 must be multiple of 512MB.
*/
uint32_t size = CONFIG_CAVIUM_RESERVE32;
uint32_t entrylo0 =
0x7 | ((octeon_reserve32_memory & ((1ul << 40) - 1)) >> 6);
uint32_t entrylo1 = entrylo0 + (256 << 14);
uint32_t entryhi = (0x80000000UL - (CONFIG_CAVIUM_RESERVE32 << 20));
while (size >= 512) {
#if 0
pr_info("CPU%d: Adding double wired TLB entry for 0x%lx\n",
smp_processor_id(), entryhi);
#endif
add_wired_entry(entrylo0, entrylo1, entryhi, PM_256M);
entrylo0 += 512 << 14;
entrylo1 += 512 << 14;
entryhi += 512 << 20;
size -= 512;
}
}
#endif /* CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB */
/**
* Called to release the named block which was used to made sure
* that nobody used the memory for something else during
* init. Now we'll free it so userspace apps can use this
* memory region with bootmem_alloc.
*
* This function is called only once from prom_free_prom_memory().
*/
void octeon_hal_setup_reserved32(void)
{
#ifdef CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB
on_each_cpu(octeon_hal_setup_per_cpu_reserved32, NULL, 0, 1);
#endif
}
/** /**
* Reboot Octeon * Reboot Octeon
* *
@ -502,25 +454,13 @@ void __init prom_init(void)
* memory when it is getting memory from the * memory when it is getting memory from the
* bootloader. Later, after the memory allocations are * bootloader. Later, after the memory allocations are
* complete, the reserve32 will be freed. * complete, the reserve32 will be freed.
*/ *
#ifdef CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB
if (CONFIG_CAVIUM_RESERVE32 & 0x1ff)
pr_err("CAVIUM_RESERVE32 isn't a multiple of 512MB. "
"This is required if CAVIUM_RESERVE32_USE_WIRED_TLB "
"is set\n");
else
addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20,
0, 0, 512 << 20,
"CAVIUM_RESERVE32", 0);
#else
/*
* Allocate memory for RESERVED32 aligned on 2MB boundary. This * Allocate memory for RESERVED32 aligned on 2MB boundary. This
* is in case we later use hugetlb entries with it. * is in case we later use hugetlb entries with it.
*/ */
addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20, addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20,
0, 0, 2 << 20, 0, 0, 2 << 20,
"CAVIUM_RESERVE32", 0); "CAVIUM_RESERVE32", 0);
#endif
if (addr < 0) if (addr < 0)
pr_err("Failed to allocate CAVIUM_RESERVE32 memory area\n"); pr_err("Failed to allocate CAVIUM_RESERVE32 memory area\n");
else else
@ -817,9 +757,4 @@ void prom_free_prom_memory(void)
panic("Unable to request_irq(OCTEON_IRQ_RML)\n"); panic("Unable to request_irq(OCTEON_IRQ_RML)\n");
} }
#endif #endif
/* This call is here so that it is performed after any TLB
initializations. It needs to be after these in case the
CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB option is set */
octeon_hal_setup_reserved32();
} }