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Fri, 27 Mar 2026 13:04:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id gFAZJWaAxmmweQAAD6G6ig (envelope-from ); Fri, 27 Mar 2026 13:04:38 +0000 From: Thomas Zimmermann To: deller@gmx.de, gregkh@linuxfoundation.org, jirislaby@kernel.org, simona@ffwll.ch, sam@ravnborg.org Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 10/10] fbcon: Put font-rotation state into separate struct Date: Fri, 27 Mar 2026 13:49:43 +0100 Message-ID: <20260327130431.59481-11-tzimmermann@suse.de> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260327130431.59481-1-tzimmermann@suse.de> References: <20260327130431.59481-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-6.80 / 50.00]; REPLY(-4.00)[]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_TO(0.00)[gmx.de,linuxfoundation.org,kernel.org,ffwll.ch,ravnborg.org]; RCPT_COUNT_SEVEN(0.00)[10]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_RATELIMIT(0.00)[to_ip_from(RLqirfcw6gnbcr9a9yhi49fhi6)]; RCVD_TLS_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid,suse.de:email]; RCVD_COUNT_TWO(0.00)[2]; FREEMAIL_ENVRCPT(0.00)[gmx.de] X-Spam-Flag: NO X-Spam-Score: -6.80 X-Spam-Level: Content-Type: text/plain; charset="utf-8" Move all temporary state of the font-rotation code into the struct rotated in struct fbcon_par. Protect it with the Kconfig symbol CONFIG_FRAMEBUFFER_CONSOLE_ROTATION. Avoids mixing it up with fbcon's regular state. Signed-off-by: Thomas Zimmermann --- drivers/video/fbdev/core/fbcon.c | 8 ++++++-- drivers/video/fbdev/core/fbcon.h | 12 +++++++---- drivers/video/fbdev/core/fbcon_ccw.c | 8 ++++---- drivers/video/fbdev/core/fbcon_cw.c | 8 ++++---- drivers/video/fbdev/core/fbcon_rotate.c | 27 +++++++++++++------------ drivers/video/fbdev/core/fbcon_ud.c | 10 ++++----- 6 files changed, 41 insertions(+), 32 deletions(-) diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fb= con.c index 345d9aa193f0..00fa5990dfc5 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -787,7 +787,9 @@ static void fbcon_release(struct fb_info *info) kfree(par->cursor_state.mask); kfree(par->cursor_data); kfree(par->cursor_src); - kfree(par->fontbuffer); +#ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION + kfree(par->rotated.buf); +#endif kfree(info->fbcon_par); info->fbcon_par =3D NULL; } @@ -1040,7 +1042,9 @@ static const char *fbcon_startup(void) par =3D info->fbcon_par; par->currcon =3D -1; par->graphics =3D 1; - par->cur_rotate =3D -1; +#ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION + par->rotated.buf_rotate =3D -1; +#endif =20 p->con_rotate =3D initial_rotation; if (p->con_rotate =3D=3D -1) diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fb= con.h index bb0727b70631..5a3866b7ee33 100644 --- a/drivers/video/fbdev/core/fbcon.h +++ b/drivers/video/fbdev/core/fbcon.h @@ -80,13 +80,17 @@ struct fbcon_par { int graphics; bool initialized; int rotate; - int cur_rotate; char *cursor_data; - u8 *fontbuffer; - const u8 *fontdata; +#ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION + struct { + font_data_t *fontdata; /* source font */ + u8 *buf; /* rotated glphys */ + size_t bufsize; + int buf_rotate; /* rotation of buf */ + } rotated; +#endif u8 *cursor_src; u32 cursor_size; - size_t fd_size; =20 const struct fbcon_bitops *bitops; }; diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/cor= e/fbcon_ccw.c index 723d9a33067f..33f02d579e02 100644 --- a/drivers/video/fbdev/core/fbcon_ccw.c +++ b/drivers/video/fbdev/core/fbcon_ccw.c @@ -106,7 +106,7 @@ static inline void ccw_putcs_aligned(struct vc_data *vc= , struct fb_info *info, u8 *src; =20 while (cnt--) { - src =3D par->fontbuffer + (scr_readw(s--) & charmask) * cellsize; + src =3D par->rotated.buf + (scr_readw(s--) & charmask) * cellsize; =20 if (attr) { ccw_update_attr(buf, src, attr, vc); @@ -142,7 +142,7 @@ static void ccw_putcs(struct vc_data *vc, struct fb_inf= o *info, u8 *dst, *buf =3D NULL; u32 vyres =3D GETVYRES(par->p, info); =20 - if (!par->fontbuffer) + if (!par->rotated.buf) return; =20 image.fg_color =3D fg; @@ -232,14 +232,14 @@ static void ccw_cursor(struct vc_data *vc, struct fb_= info *info, bool enable, char *src; u32 vyres =3D GETVYRES(par->p, info); =20 - if (!par->fontbuffer) + if (!par->rotated.buf) return; =20 cursor.set =3D 0; =20 c =3D scr_readw((u16 *) vc->vc_pos); attribute =3D get_attribute(info, c); - src =3D par->fontbuffer + ((c & charmask) * (w * vc->vc_font.width)); + src =3D par->rotated.buf + ((c & charmask) * (w * vc->vc_font.width)); =20 if (par->cursor_state.image.data !=3D src || par->cursor_reset) { diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core= /fbcon_cw.c index 732d093d462f..bde820967eb9 100644 --- a/drivers/video/fbdev/core/fbcon_cw.c +++ b/drivers/video/fbdev/core/fbcon_cw.c @@ -91,7 +91,7 @@ static inline void cw_putcs_aligned(struct vc_data *vc, s= truct fb_info *info, u8 *src; =20 while (cnt--) { - src =3D par->fontbuffer + (scr_readw(s++) & charmask) * cellsize; + src =3D par->rotated.buf + (scr_readw(s++) & charmask) * cellsize; =20 if (attr) { cw_update_attr(buf, src, attr, vc); @@ -127,7 +127,7 @@ static void cw_putcs(struct vc_data *vc, struct fb_info= *info, u8 *dst, *buf =3D NULL; u32 vxres =3D GETVXRES(par->p, info); =20 - if (!par->fontbuffer) + if (!par->rotated.buf) return; =20 image.fg_color =3D fg; @@ -215,14 +215,14 @@ static void cw_cursor(struct vc_data *vc, struct fb_i= nfo *info, bool enable, char *src; u32 vxres =3D GETVXRES(par->p, info); =20 - if (!par->fontbuffer) + if (!par->rotated.buf) return; =20 cursor.set =3D 0; =20 c =3D scr_readw((u16 *) vc->vc_pos); attribute =3D get_attribute(info, c); - src =3D par->fontbuffer + ((c & charmask) * (w * vc->vc_font.width)); + src =3D par->rotated.buf + ((c & charmask) * (w * vc->vc_font.width)); =20 if (par->cursor_state.image.data !=3D src || par->cursor_reset) { diff --git a/drivers/video/fbdev/core/fbcon_rotate.c b/drivers/video/fbdev/= core/fbcon_rotate.c index 74206f5a6e98..6cdbc96eeca6 100644 --- a/drivers/video/fbdev/core/fbcon_rotate.c +++ b/drivers/video/fbdev/core/fbcon_rotate.c @@ -18,34 +18,35 @@ int fbcon_rotate_font(struct fb_info *info, struct vc_data *vc) { struct fbcon_par *par =3D info->fbcon_par; - unsigned char *fontbuffer; + unsigned char *buf; int ret; =20 - if (vc->vc_font.data =3D=3D par->fontdata && - par->p->con_rotate =3D=3D par->cur_rotate) + if (par->p->fontdata =3D=3D par->rotated.fontdata && par->rotate =3D=3D p= ar->rotated.buf_rotate) return 0; =20 - par->fontdata =3D vc->vc_font.data; - par->cur_rotate =3D par->p->con_rotate; + par->rotated.fontdata =3D par->p->fontdata; + par->rotated.buf_rotate =3D par->rotate; =20 if (info->fbops->fb_sync) info->fbops->fb_sync(info); =20 - fontbuffer =3D font_data_rotate(par->p->fontdata, vc->vc_font.width, - vc->vc_font.height, vc->vc_font.charcount, - par->rotate, par->fontbuffer, &par->fd_size); - if (IS_ERR(fontbuffer)) { - ret =3D PTR_ERR(fontbuffer); + buf =3D font_data_rotate(par->rotated.fontdata, vc->vc_font.width, + vc->vc_font.height, vc->vc_font.charcount, + par->rotated.buf_rotate, par->rotated.buf, + &par->rotated.bufsize); + if (IS_ERR(buf)) { + ret =3D PTR_ERR(buf); goto err_kfree; } =20 - par->fontbuffer =3D fontbuffer; + par->rotated.buf =3D buf; =20 return 0; =20 err_kfree: - kfree(par->fontbuffer); - par->fontbuffer =3D NULL; /* clear here to avoid output */ + kfree(par->rotated.buf); + par->rotated.buf =3D NULL; /* clear here to avoid output */ + par->rotated.bufsize =3D 0; =20 return ret; } diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core= /fbcon_ud.c index a1981fa4701a..eaf08999e249 100644 --- a/drivers/video/fbdev/core/fbcon_ud.c +++ b/drivers/video/fbdev/core/fbcon_ud.c @@ -92,7 +92,7 @@ static inline void ud_putcs_aligned(struct vc_data *vc, s= truct fb_info *info, u8 *src; =20 while (cnt--) { - src =3D par->fontbuffer + (scr_readw(s--) & charmask) * cellsize; + src =3D par->rotated.buf + (scr_readw(s--) & charmask) * cellsize; =20 if (attr) { ud_update_attr(buf, src, attr, vc); @@ -127,7 +127,7 @@ static inline void ud_putcs_unaligned(struct vc_data *v= c, u8 *src; =20 while (cnt--) { - src =3D par->fontbuffer + (scr_readw(s--) & charmask) * cellsize; + src =3D par->rotated.buf + (scr_readw(s--) & charmask) * cellsize; =20 if (attr) { ud_update_attr(buf, src, attr, vc); @@ -164,7 +164,7 @@ static void ud_putcs(struct vc_data *vc, struct fb_info= *info, u32 vyres =3D GETVYRES(par->p, info); u32 vxres =3D GETVXRES(par->p, info); =20 - if (!par->fontbuffer) + if (!par->rotated.buf) return; =20 image.fg_color =3D fg; @@ -262,14 +262,14 @@ static void ud_cursor(struct vc_data *vc, struct fb_i= nfo *info, bool enable, u32 vyres =3D GETVYRES(par->p, info); u32 vxres =3D GETVXRES(par->p, info); =20 - if (!par->fontbuffer) + if (!par->rotated.buf) return; =20 cursor.set =3D 0; =20 c =3D scr_readw((u16 *) vc->vc_pos); attribute =3D get_attribute(info, c); - src =3D par->fontbuffer + ((c & charmask) * (w * vc->vc_font.height)); + src =3D par->rotated.buf + ((c & charmask) * (w * vc->vc_font.height)); =20 if (par->cursor_state.image.data !=3D src || par->cursor_reset) { --=20 2.53.0