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Re: [PATCH-for-8.0 5/5] accel/tcg: Restrict page_collection structure to
From: |
Alex Bennée |
Subject: |
Re: [PATCH-for-8.0 5/5] accel/tcg: Restrict page_collection structure to system TB maintainance |
Date: |
Fri, 16 Dec 2022 12:22:36 +0000 |
User-agent: |
mu4e 1.9.6; emacs 29.0.60 |
Philippe Mathieu-Daudé <philmd@linaro.org> writes:
> Only the system emulation part of TB maintainance uses the
> page_collection structure. Restrict its declaration (and the
> functions requiring it) to tb-maint.c.
>
> Convert the 'len' argument of tb_invalidate_phys_page_locked_fast()
> from signed to unsigned.
You could push that cleanup higher because I think we only ever have
DATA_SIZE which is always in a fixed range.
Anyway:
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
> accel/tcg/internal.h | 7 -------
> accel/tcg/tb-maint.c | 12 ++++++------
> 2 files changed, 6 insertions(+), 13 deletions(-)
>
> diff --git a/accel/tcg/internal.h b/accel/tcg/internal.h
> index db078390b1..6edff16fb0 100644
> --- a/accel/tcg/internal.h
> +++ b/accel/tcg/internal.h
> @@ -36,16 +36,9 @@ void page_table_config_init(void);
> #endif
>
> #ifdef CONFIG_SOFTMMU
> -struct page_collection;
> -void tb_invalidate_phys_page_locked_fast(struct page_collection *pages,
> - tb_page_addr_t start, int len,
> - uintptr_t retaddr);
> -struct page_collection *page_collection_lock(tb_page_addr_t start,
> - tb_page_addr_t end);
> void tb_invalidate_phys_range_fast(ram_addr_t ram_addr,
> unsigned size,
> uintptr_t retaddr);
> -void page_collection_unlock(struct page_collection *set);
> G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
> #endif /* CONFIG_SOFTMMU */
>
> diff --git a/accel/tcg/tb-maint.c b/accel/tcg/tb-maint.c
> index 4dc2fa1060..10d7e4b7a8 100644
> --- a/accel/tcg/tb-maint.c
> +++ b/accel/tcg/tb-maint.c
> @@ -523,8 +523,8 @@ static gint tb_page_addr_cmp(gconstpointer ap,
> gconstpointer bp, gpointer udata)
> * intersecting TBs.
> * Locking order: acquire locks in ascending order of page index.
> */
> -struct page_collection *
> -page_collection_lock(tb_page_addr_t start, tb_page_addr_t end)
> +static struct page_collection *page_collection_lock(tb_page_addr_t start,
> + tb_page_addr_t end)
> {
> struct page_collection *set = g_malloc(sizeof(*set));
> tb_page_addr_t index;
> @@ -568,7 +568,7 @@ page_collection_lock(tb_page_addr_t start, tb_page_addr_t
> end)
> return set;
> }
>
> -void page_collection_unlock(struct page_collection *set)
> +static void page_collection_unlock(struct page_collection *set)
> {
> /* entries are unlocked and freed via page_entry_destroy */
> g_tree_destroy(set->tree);
> @@ -1196,9 +1196,9 @@ void tb_invalidate_phys_range(tb_page_addr_t start,
> tb_page_addr_t end)
> /*
> * Call with all @pages in the range [@start, @start + len[ locked.
> */
> -void tb_invalidate_phys_page_locked_fast(struct page_collection *pages,
> - tb_page_addr_t start, int len,
> - uintptr_t retaddr)
> +static void tb_invalidate_phys_page_locked_fast(struct page_collection
> *pages,
> + tb_page_addr_t start,
> + unsigned len, uintptr_t
> retaddr)
> {
> PageDesc *p;
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
- [PATCH-for-8.0 2/5] accel/tcg: Remove trace events from trace-root.h, (continued)
- [PATCH-for-8.0 2/5] accel/tcg: Remove trace events from trace-root.h, Philippe Mathieu-Daudé, 2022/12/09
- [PATCH-for-8.0 1/5] accel/tcg: Restrict cpu_io_recompile() to system emulation, Philippe Mathieu-Daudé, 2022/12/09
- [PATCH-for-8.0 3/5] accel/tcg: Rename tb_invalidate_phys_page_[locked_]fast(), Philippe Mathieu-Daudé, 2022/12/09
- [PATCH-for-8.0 4/5] accel/tcg: Factor tb_invalidate_phys_range_fast() out, Philippe Mathieu-Daudé, 2022/12/09
- [PATCH-for-8.0 5/5] accel/tcg: Restrict page_collection structure to system TB maintainance, Philippe Mathieu-Daudé, 2022/12/09
- Re: [PATCH-for-8.0 5/5] accel/tcg: Restrict page_collection structure to system TB maintainance,
Alex Bennée <=