linux-user: Remove HOST_PAGE_ALIGN from mmap.c

This removes a hidden use of qemu_host_page_size, using instead
the existing host_page_size local within each function.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-11-richard.henderson@linaro.org>

linux-user/mmap.c

@@ -191,7 +191,7 @@ int target_mprotect(abi_ulong start, abi_ulong len, int target_prot)
 
     last = start + len - 1;
     host_start = start & -host_page_size;
-    host_last = HOST_PAGE_ALIGN(last) - 1;
+    host_last = ROUND_UP(last, host_page_size) - 1;
     nranges = 0;
 
     mmap_lock();
@@ -389,8 +389,7 @@ abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size, abi_ulong align)
         start &= -host_page_size;
     }
     start = ROUND_UP(start, align);
-
-    size = HOST_PAGE_ALIGN(size);
+    size = ROUND_UP(size, host_page_size);
 
     if (reserved_va) {
         return mmap_find_vma_reserved(start, size, align);
@@ -550,7 +549,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int target_prot,
      */
     if (!(flags & (MAP_FIXED | MAP_FIXED_NOREPLACE))) {
         host_len = len + offset - host_offset;
-        host_len = HOST_PAGE_ALIGN(host_len);
+        host_len = ROUND_UP(host_len, host_page_size);
         start = mmap_find_vma(real_start, host_len, TARGET_PAGE_SIZE);
         if (start == (abi_ulong)-1) {
             errno = ENOMEM;
@@ -595,7 +594,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int target_prot,
         void *p;
 
         host_len = len + offset - host_offset;
-        host_len = HOST_PAGE_ALIGN(host_len);
+        host_len = ROUND_UP(host_len, host_page_size);
         host_prot = target_to_host_prot(target_prot);
 
         /* Note: we prefer to control the mapping address. */
@@ -625,7 +624,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int target_prot,
             goto fail;
         }
         last = start + len - 1;
-        real_last = HOST_PAGE_ALIGN(last) - 1;
+        real_last = ROUND_UP(last, host_page_size) - 1;
 
         /*
          * Test if requested memory area fits target address space
@@ -794,7 +793,7 @@ static int mmap_reserve_or_unmap(abi_ulong start, abi_ulong len)
 
     last = start + len - 1;
     real_start = start & -host_page_size;
-    real_last = HOST_PAGE_ALIGN(last) - 1;
+    real_last = ROUND_UP(last, host_page_size) - 1;
 
     /*
      * If guest pages remain on the first or last host pages,