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[PATCH] MIPS: Octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32_USE_WIR

To: linux-mips@linux-mips.org, ralf@linux-mips.org
Subject: [PATCH] MIPS: Octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB
From: David Daney <ddaney@caviumnetworks.com>
Date: Wed, 3 Mar 2010 11:07:07 -0800
Cc: David Daney <ddaney@caviumnetworks.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
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>
---
 arch/mips/cavium-octeon/setup.c |   67 +--------------------------------------
 1 files changed, 1 insertions(+), 66 deletions(-)

diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index f58eed6..4ba3277 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -186,54 +186,6 @@ void octeon_check_cpu_bist(void)
        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
  *
@@ -502,25 +454,13 @@ void __init prom_init(void)
         * memory when it is getting memory from the
         * bootloader. Later, after the memory allocations are
         * 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
         * is in case we later use hugetlb entries with it.
         */
        addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20,
                                                0, 0, 2 << 20,
                                                "CAVIUM_RESERVE32", 0);
-#endif
        if (addr < 0)
                pr_err("Failed to allocate CAVIUM_RESERVE32 memory area\n");
        else
@@ -822,9 +762,4 @@ void prom_free_prom_memory(void)
                panic("Unable to request_irq(OCTEON_IRQ_RML)\n");
        }
 #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();
 }
-- 
1.6.6.1


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