1 files changed, 50 insertions, 154 deletions

diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index d1782f6368be..fe65aeeb3947 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -31,7 +31,6 @@
 #include <asm/oplib.h>
 #include <asm/openprom.h>
 #include <asm/mmu_context.h>
-#include <asm/sun4paddr.h>
 #include <asm/highmem.h>
 #include <asm/btfixup.h>
 #include <asm/cacheflush.h>
@@ -52,15 +51,11 @@ extern int num_segmaps, num_contexts;
 
 extern unsigned long page_kernel;
 
-#ifdef CONFIG_SUN4
-#define SUN4C_VAC_SIZE sun4c_vacinfo.num_bytes
-#else
 /* That's it, we prom_halt() on sun4c if the cache size is something other than 65536.
  * So let's save some cycles and just use that everywhere except for that bootup
  * sanity check.
  */
 #define SUN4C_VAC_SIZE 65536
-#endif
 
 #define SUN4C_KERNEL_BUCKETS 32
 
@@ -285,75 +280,32 @@ void __init sun4c_probe_vac(void)
 {
         sun4c_disable_vac();
 
-        if (ARCH_SUN4) {
-                switch (idprom->id_machtype) {
-
-                case (SM_SUN4|SM_4_110):
-                        sun4c_vacinfo.type = VAC_NONE;
-                        sun4c_vacinfo.num_bytes = 0;
-                        sun4c_vacinfo.linesize = 0;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        prom_printf("No VAC. Get some bucks and buy a real computer.");
-                        prom_halt();
-                        break;
-
-                case (SM_SUN4|SM_4_260):
-                        sun4c_vacinfo.type = VAC_WRITE_BACK;
-                        sun4c_vacinfo.num_bytes = 128 * 1024;
-                        sun4c_vacinfo.linesize = 16;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        break;
-
-                case (SM_SUN4|SM_4_330):
-                        sun4c_vacinfo.type = VAC_WRITE_THROUGH;
-                        sun4c_vacinfo.num_bytes = 128 * 1024;
-                        sun4c_vacinfo.linesize = 16;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        break;
-
-                case (SM_SUN4|SM_4_470):
-                        sun4c_vacinfo.type = VAC_WRITE_BACK;
-                        sun4c_vacinfo.num_bytes = 128 * 1024;
-                        sun4c_vacinfo.linesize = 32;
-                        sun4c_vacinfo.do_hwflushes = 0;
-                        break;
-
-                default:
-                        prom_printf("Cannot initialize VAC - weird sun4 model idprom->id_machtype = %d", idprom->id_machtype);
-                        prom_halt();
-                };
+        if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
+            (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
+                /* PROM on SS1 lacks this info, to be super safe we
+                 * hard code it here since this arch is cast in stone.
+                 */
+                sun4c_vacinfo.num_bytes = 65536;
+                sun4c_vacinfo.linesize = 16;
         } else {
-                sun4c_vacinfo.type = VAC_WRITE_THROUGH;
+                sun4c_vacinfo.num_bytes =
+                 prom_getintdefault(prom_root_node, "vac-size", 65536);
+                sun4c_vacinfo.linesize =
+                 prom_getintdefault(prom_root_node, "vac-linesize", 16);
+        }
+        sun4c_vacinfo.do_hwflushes =
+         prom_getintdefault(prom_root_node, "vac-hwflush", 0);
 
-                if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
-                    (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
-                        /* PROM on SS1 lacks this info, to be super safe we
-                         * hard code it here since this arch is cast in stone.
-                         */
-                        sun4c_vacinfo.num_bytes = 65536;
-                        sun4c_vacinfo.linesize = 16;
-                } else {
-                        sun4c_vacinfo.num_bytes =
-                         prom_getintdefault(prom_root_node, "vac-size", 65536);
-                        sun4c_vacinfo.linesize =
-                         prom_getintdefault(prom_root_node, "vac-linesize", 16);
-                }
+        if (sun4c_vacinfo.do_hwflushes == 0)
                 sun4c_vacinfo.do_hwflushes =
-                 prom_getintdefault(prom_root_node, "vac-hwflush", 0);
-
-                if (sun4c_vacinfo.do_hwflushes == 0)
-                        sun4c_vacinfo.do_hwflushes =
-                         prom_getintdefault(prom_root_node, "vac_hwflush", 0);
+                 prom_getintdefault(prom_root_node, "vac_hwflush", 0);
 
-                if (sun4c_vacinfo.num_bytes != 65536) {
-                        prom_printf("WEIRD Sun4C VAC cache size, "
-                                    "tell sparclinux@vger.kernel.org");
-                        prom_halt();
-                }
+        if (sun4c_vacinfo.num_bytes != 65536) {
+                prom_printf("WEIRD Sun4C VAC cache size, "
+                            "tell sparclinux@vger.kernel.org");
+                prom_halt();
         }
 
-        sun4c_vacinfo.num_lines =
-                (sun4c_vacinfo.num_bytes / sun4c_vacinfo.linesize);
         switch (sun4c_vacinfo.linesize) {
         case 16:
                 sun4c_vacinfo.log2lsize = 4;
@@ -447,49 +399,18 @@ static void __init patch_kernel_fault_handler(void)
 
 static void __init sun4c_probe_mmu(void)
 {
-        if (ARCH_SUN4) {
-                switch (idprom->id_machtype) {
-                case (SM_SUN4|SM_4_110):
-                        prom_printf("No support for 4100 yet\n");
-                        prom_halt();
-                        num_segmaps = 256;
-                        num_contexts = 8;
-                        break;
-
-                case (SM_SUN4|SM_4_260):
-                        /* should be 512 segmaps. when it get fixed */
-                        num_segmaps = 256;
-                        num_contexts = 16;
-                        break;
-
-                case (SM_SUN4|SM_4_330):
-                        num_segmaps = 256;
-                        num_contexts = 16;
-                        break;
-
-                case (SM_SUN4|SM_4_470):
-                        /* should be 1024 segmaps. when it get fixed */
-                        num_segmaps = 256;
-                        num_contexts = 64;
-                        break;
-                default:
-                        prom_printf("Invalid SUN4 model\n");
-                        prom_halt();
-                };
+        if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
+            (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
+                /* Hardcode these just to be safe, PROM on SS1 does
+                * not have this info available in the root node.
+                */
+                num_segmaps = 128;
+                num_contexts = 8;
         } else {
-                if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
-                    (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
-                        /* Hardcode these just to be safe, PROM on SS1 does
-                        * not have this info available in the root node.
-                        */
-                        num_segmaps = 128;
-                        num_contexts = 8;
-                } else {
-                        num_segmaps =
-                            prom_getintdefault(prom_root_node, "mmu-npmg", 128);
-                        num_contexts =
-                            prom_getintdefault(prom_root_node, "mmu-nctx", 0x8);
-                }
+                num_segmaps =
+                    prom_getintdefault(prom_root_node, "mmu-npmg", 128);
+                num_contexts =
+                    prom_getintdefault(prom_root_node, "mmu-nctx", 0x8);
         }
         patch_kernel_fault_handler();
 }
@@ -501,18 +422,14 @@ void __init sun4c_probe_memerr_reg(void)
         int node;
         struct linux_prom_registers regs[1];
 
-        if (ARCH_SUN4) {
-                sun4c_memerr_reg = ioremap(sun4_memreg_physaddr, PAGE_SIZE);
-        } else {
-                node = prom_getchild(prom_root_node);
-                node = prom_searchsiblings(prom_root_node, "memory-error");
-                if (!node)
-                        return;
-                if (prom_getproperty(node, "reg", (char *)regs, sizeof(regs)) <= 0)
-                        return;
-                /* hmm I think regs[0].which_io is zero here anyways */
-                sun4c_memerr_reg = ioremap(regs[0].phys_addr, regs[0].reg_size);
-        }
+        node = prom_getchild(prom_root_node);
+        node = prom_searchsiblings(prom_root_node, "memory-error");
+        if (!node)
+                return;
+        if (prom_getproperty(node, "reg", (char *)regs, sizeof(regs)) <= 0)
+                return;
+        /* hmm I think regs[0].which_io is zero here anyways */
+        sun4c_memerr_reg = ioremap(regs[0].phys_addr, regs[0].reg_size);
 }
 
 static inline void sun4c_init_ss2_cache_bug(void)
@@ -521,7 +438,6 @@ static inline void sun4c_init_ss2_cache_bug(void)
 
         if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS2)) ||
             (idprom->id_machtype == (SM_SUN4C | SM_4C_IPX)) ||
-            (idprom->id_machtype == (SM_SUN4 | SM_4_330)) ||
             (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC))) {
                 /* Whee.. */
                 printk("SS2 cache bug detected, uncaching trap table page\n");
@@ -532,8 +448,8 @@ static inline void sun4c_init_ss2_cache_bug(void)
 }
 
 /* Addr is always aligned on a page boundary for us already. */
-static int sun4c_map_dma_area(dma_addr_t *pba, unsigned long va,
-    unsigned long addr, int len)
+static int sun4c_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va,
+                              unsigned long addr, int len)
 {
         unsigned long page, end;
 
@@ -555,14 +471,7 @@ static int sun4c_map_dma_area(dma_addr_t *pba, unsigned long va,
         return 0;
 }
 
-static struct page *sun4c_translate_dvma(unsigned long busa)
-{
-        /* Fortunately for us, bus_addr == uncached_virt in sun4c. */
-        unsigned long pte = sun4c_get_pte(busa);
-        return pfn_to_page(pte & SUN4C_PFN_MASK);
-}
-
-static void sun4c_unmap_dma_area(unsigned long busa, int len)
+static void sun4c_unmap_dma_area(struct device *dev, unsigned long busa, int len)
 {
         /* Fortunately for us, bus_addr == uncached_virt in sun4c. */
         /* XXX Implement this */
@@ -624,11 +533,7 @@ static inline void sun4c_init_map_kernelprom(unsigned long kernel_end)
 {
         unsigned long vaddr;
         unsigned char pseg, ctx;
-#ifdef CONFIG_SUN4
-        /* sun4/110 and 260 have no kadb. */
-        if ((idprom->id_machtype != (SM_SUN4 | SM_4_260)) && 
-            (idprom->id_machtype != (SM_SUN4 | SM_4_110))) {
-#endif
+
         for (vaddr = KADB_DEBUGGER_BEGVM;
              vaddr < LINUX_OPPROM_ENDVM;
              vaddr += SUN4C_REAL_PGDIR_SIZE) {
@@ -640,9 +545,7 @@ static inline void sun4c_init_map_kernelprom(unsigned long kernel_end)
                         fix_permissions(vaddr, _SUN4C_PAGE_PRIV, 0);
                 }
         }
-#ifdef CONFIG_SUN4
-        }
-#endif
+
         for (vaddr = KERNBASE; vaddr < kernel_end; vaddr += SUN4C_REAL_PGDIR_SIZE) {
                 pseg = sun4c_get_segmap(vaddr);
                 mmu_entry_pool[pseg].locked = 1;
@@ -1048,14 +951,10 @@ static struct thread_info *sun4c_alloc_thread_info(void)
          * so we must flush the cache to guarantee consistency.
          */
         sun4c_flush_page(pages);
-#ifndef CONFIG_SUN4     
         sun4c_flush_page(pages + PAGE_SIZE);
-#endif
 
         sun4c_put_pte(addr, BUCKET_PTE(pages));
-#ifndef CONFIG_SUN4     
         sun4c_put_pte(addr + PAGE_SIZE, BUCKET_PTE(pages + PAGE_SIZE));
-#endif
 
 #ifdef CONFIG_DEBUG_STACK_USAGE
         memset((void *)addr, 0, PAGE_SIZE << THREAD_INFO_ORDER);
@@ -1072,13 +971,11 @@ static void sun4c_free_thread_info(struct thread_info *ti)
 
         /* We are deleting a mapping, so the flush here is mandatory. */
         sun4c_flush_page(tiaddr);
-#ifndef CONFIG_SUN4     
         sun4c_flush_page(tiaddr + PAGE_SIZE);
-#endif
+
         sun4c_put_pte(tiaddr, 0);
-#ifndef CONFIG_SUN4     
         sun4c_put_pte(tiaddr + PAGE_SIZE, 0);
-#endif
+
         sun4c_bucket[entry] = BUCKET_EMPTY;
         if (entry < sun4c_lowbucket_avail)
                 sun4c_lowbucket_avail = entry;
@@ -1211,7 +1108,7 @@ static void sun4c_unlockarea(char *vaddr, unsigned long size)
  * by implication and fool the page locking code above
  * if passed to by mistake.
  */
-static __u32 sun4c_get_scsi_one(char *bufptr, unsigned long len, struct sbus_bus *sbus)
+static __u32 sun4c_get_scsi_one(struct device *dev, char *bufptr, unsigned long len)
 {
         unsigned long page;
 
@@ -1223,7 +1120,7 @@ static __u32 sun4c_get_scsi_one(char *bufptr, unsigned long len, struct sbus_bus
         return (__u32)sun4c_lockarea(bufptr, len);
 }
 
-static void sun4c_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void sun4c_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
 {
         while (sz != 0) {
                 --sz;
@@ -1233,14 +1130,14 @@ static void sun4c_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *
         }
 }
 
-static void sun4c_release_scsi_one(__u32 bufptr, unsigned long len, struct sbus_bus *sbus)
+static void sun4c_release_scsi_one(struct device *dev, __u32 bufptr, unsigned long len)
 {
         if (bufptr < sun4c_iobuffer_start)
                 return; /* On kernel stack or similar, see above */
         sun4c_unlockarea((char *)bufptr, len);
 }
 
-static void sun4c_release_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *sbus)
+static void sun4c_release_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz)
 {
         while (sz != 0) {
                 --sz;
@@ -2263,7 +2160,6 @@ void __init ld_mmu_sun4c(void)
 
         BTFIXUPSET_CALL(mmu_map_dma_area, sun4c_map_dma_area, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(mmu_unmap_dma_area, sun4c_unmap_dma_area, BTFIXUPCALL_NORM);
-        BTFIXUPSET_CALL(mmu_translate_dvma, sun4c_translate_dvma, BTFIXUPCALL_NORM);
 
         BTFIXUPSET_CALL(sparc_mapiorange, sun4c_mapiorange, BTFIXUPCALL_NORM);
         BTFIXUPSET_CALL(sparc_unmapiorange, sun4c_unmapiorange, BTFIXUPCALL_NORM);