From f241b064426943a1591c9e9121a175d5ed1edb42 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Mon, 8 Aug 2022 14:54:05 +0200 Subject: [PATCH] drm/format-helper: Move destination-buffer handling into internal helper The format-convertion helpers handle several cases for different values of destination buffer and pitch. Move that code into the internal helper drm_fb_xfrm() and avoid quite a bit of duplication. v2: * remove a duplicated blank line (Jose) * use drm_format_info_bpp() (Sam) * fix vaddr_cached_hint bug (Sam) * add TODO on vaddr location (Sam) Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220808125406.20752-14-tzimmermann@suse.de --- drivers/gpu/drm/drm_format_helper.c | 174 +++++++++++++----------------------- 1 file changed, 63 insertions(+), 111 deletions(-) diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index 53a313f8..0fec3b6 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -41,11 +41,11 @@ unsigned int drm_fb_clip_offset(unsigned int pitch, const struct drm_format_info } EXPORT_SYMBOL(drm_fb_clip_offset); -/* TODO: Make this functon work with multi-plane formats. */ -static int drm_fb_xfrm(void *dst, unsigned long dst_pitch, unsigned long dst_pixsize, - const void *vaddr, const struct drm_framebuffer *fb, - const struct drm_rect *clip, bool vaddr_cached_hint, - void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels)) +/* TODO: Make this function work with multi-plane formats. */ +static int __drm_fb_xfrm(void *dst, unsigned long dst_pitch, unsigned long dst_pixsize, + const void *vaddr, const struct drm_framebuffer *fb, + const struct drm_rect *clip, bool vaddr_cached_hint, + void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels)) { unsigned long linepixels = drm_rect_width(clip); unsigned long lines = drm_rect_height(clip); @@ -84,11 +84,11 @@ static int drm_fb_xfrm(void *dst, unsigned long dst_pitch, unsigned long dst_pix return 0; } -/* TODO: Make this functon work with multi-plane formats. */ -static int drm_fb_xfrm_toio(void __iomem *dst, unsigned long dst_pitch, unsigned long dst_pixsize, - const void *vaddr, const struct drm_framebuffer *fb, - const struct drm_rect *clip, bool vaddr_cached_hint, - void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels)) +/* TODO: Make this function work with multi-plane formats. */ +static int __drm_fb_xfrm_toio(void __iomem *dst, unsigned long dst_pitch, unsigned long dst_pixsize, + const void *vaddr, const struct drm_framebuffer *fb, + const struct drm_rect *clip, bool vaddr_cached_hint, + void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels)) { unsigned long linepixels = drm_rect_width(clip); unsigned long lines = drm_rect_height(clip); @@ -129,6 +129,29 @@ static int drm_fb_xfrm_toio(void __iomem *dst, unsigned long dst_pitch, unsigned return 0; } +/* TODO: Make this function work with multi-plane formats. */ +static int drm_fb_xfrm(struct iosys_map *dst, + const unsigned int *dst_pitch, const u8 *dst_pixsize, + const struct iosys_map *vmap, const struct drm_framebuffer *fb, + const struct drm_rect *clip, bool vaddr_cached_hint, + void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels)) +{ + static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { + 0, 0, 0, 0 + }; + + if (!dst_pitch) + dst_pitch = default_dst_pitch; + + /* TODO: handle vmap in I/O memory here */ + if (dst[0].is_iomem) + return __drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], dst_pixsize[0], + vmap[0].vaddr, fb, clip, vaddr_cached_hint, xfrm_line); + else + return __drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], dst_pixsize[0], + vmap[0].vaddr, fb, clip, vaddr_cached_hint, xfrm_line); +} + /** * drm_fb_memcpy - Copy clip buffer * @dst: Array of destination buffers @@ -228,9 +251,6 @@ void drm_fb_swab(struct iosys_map *dst, const unsigned int *dst_pitch, const struct iosys_map *vmap, const struct drm_framebuffer *fb, const struct drm_rect *clip, bool cached) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 - }; const struct drm_format_info *format = fb->format; u8 cpp = DIV_ROUND_UP(drm_format_info_bpp(format, 0), 8); void (*swab_line)(void *dbuf, const void *sbuf, unsigned int npixels); @@ -245,22 +265,10 @@ void drm_fb_swab(struct iosys_map *dst, const unsigned int *dst_pitch, default: drm_warn_once(fb->dev, "Format %p4cc has unsupported pixel size.\n", &format->format); - swab_line = NULL; - break; - } - if (!swab_line) return; + } - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst->is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], cpp, - vmap[0].vaddr, fb, clip, cached, swab_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], cpp, vmap[0].vaddr, fb, - clip, cached, swab_line); + drm_fb_xfrm(dst, dst_pitch, &cpp, vmap, fb, clip, cached, swab_line); } EXPORT_SYMBOL(drm_fb_swab); @@ -303,20 +311,12 @@ void drm_fb_xrgb8888_to_rgb332(struct iosys_map *dst, const unsigned int *dst_pi const struct iosys_map *vmap, const struct drm_framebuffer *fb, const struct drm_rect *clip) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 1, }; - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst[0].is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 1, vmap[0].vaddr, fb, clip, - false, drm_fb_xrgb8888_to_rgb332_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 1, vmap[0].vaddr, fb, clip, - false, drm_fb_xrgb8888_to_rgb332_line); + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, + drm_fb_xrgb8888_to_rgb332_line); } EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb332); @@ -380,9 +380,10 @@ void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pi const struct iosys_map *vmap, const struct drm_framebuffer *fb, const struct drm_rect *clip, bool swab) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 2, }; + void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels); if (swab) @@ -390,16 +391,7 @@ void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pi else xfrm_line = drm_fb_xrgb8888_to_rgb565_line; - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst[0].is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 2, vmap[0].vaddr, fb, clip, - false, xfrm_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 2, vmap[0].vaddr, fb, clip, - false, xfrm_line); + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, xfrm_line); } EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb565); @@ -443,20 +435,12 @@ void drm_fb_xrgb8888_to_rgb888(struct iosys_map *dst, const unsigned int *dst_pi const struct iosys_map *vmap, const struct drm_framebuffer *fb, const struct drm_rect *clip) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 3, }; - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst[0].is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 3, vmap[0].vaddr, fb, - clip, false, drm_fb_xrgb8888_to_rgb888_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 3, vmap[0].vaddr, fb, - clip, false, drm_fb_xrgb8888_to_rgb888_line); + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, + drm_fb_xrgb8888_to_rgb888_line); } EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb888); @@ -483,20 +467,12 @@ static void drm_fb_rgb565_to_xrgb8888(struct iosys_map *dst, const unsigned int const struct drm_framebuffer *fb, const struct drm_rect *clip) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 4, }; - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst[0].is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 4, vmap[0].vaddr, fb, - clip, false, drm_fb_rgb565_to_xrgb8888_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 4, vmap[0].vaddr, fb, - clip, false, drm_fb_rgb565_to_xrgb8888_line); + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, + drm_fb_rgb565_to_xrgb8888_line); } static void drm_fb_rgb888_to_xrgb8888_line(void *dbuf, const void *sbuf, unsigned int pixels) @@ -519,20 +495,12 @@ static void drm_fb_rgb888_to_xrgb8888(struct iosys_map *dst, const unsigned int const struct drm_framebuffer *fb, const struct drm_rect *clip) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 4, }; - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst[0].is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 4, vmap[0].vaddr, fb, - clip, false, drm_fb_rgb888_to_xrgb8888_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 4, vmap[0].vaddr, fb, - clip, false, drm_fb_rgb888_to_xrgb8888_line); + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, + drm_fb_rgb888_to_xrgb8888_line); } static void drm_fb_xrgb8888_to_xrgb2101010_line(void *dbuf, const void *sbuf, unsigned int pixels) @@ -578,20 +546,12 @@ void drm_fb_xrgb8888_to_xrgb2101010(struct iosys_map *dst, const unsigned int *d const struct iosys_map *vmap, const struct drm_framebuffer *fb, const struct drm_rect *clip) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 4, }; - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst[0].is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 4, vmap[0].vaddr, fb, - clip, false, drm_fb_xrgb8888_to_xrgb2101010_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 4, vmap[0].vaddr, fb, - clip, false, drm_fb_xrgb8888_to_xrgb2101010_line); + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, + drm_fb_xrgb8888_to_xrgb2101010_line); } static void drm_fb_xrgb8888_to_gray8_line(void *dbuf, const void *sbuf, unsigned int pixels) @@ -640,20 +600,12 @@ void drm_fb_xrgb8888_to_gray8(struct iosys_map *dst, const unsigned int *dst_pit const struct iosys_map *vmap, const struct drm_framebuffer *fb, const struct drm_rect *clip) { - static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = { - 0, 0, 0, 0 + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 1, }; - if (!dst_pitch) - dst_pitch = default_dst_pitch; - - /* TODO: handle vmap in I/O memory here */ - if (dst[0].is_iomem) - drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 1, vmap[0].vaddr, fb, - clip, false, drm_fb_xrgb8888_to_gray8_line); - else - drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 1, vmap[0].vaddr, fb, - clip, false, drm_fb_xrgb8888_to_gray8_line); + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, + drm_fb_xrgb8888_to_gray8_line); } EXPORT_SYMBOL(drm_fb_xrgb8888_to_gray8); -- 2.7.4