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Wed, 20 Dec 2023 13:46:47 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id sM+hFUfwgmWZJwAAn2gu4w (envelope-from ); Wed, 20 Dec 2023 13:46:47 +0000 From: Thomas Zimmermann To: deller@gmx.de, James.Bottomley@HansenPartnership.com, arnd@arndb.de Cc: linux-parisc@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH 2/4] fbdev/stifb: Allocate fb_info instance with framebuffer_alloc() Date: Wed, 20 Dec 2023 14:22:55 +0100 Message-ID: <20231220134639.8190-3-tzimmermann@suse.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231220134639.8190-1-tzimmermann@suse.de> References: <20231220134639.8190-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Score: 1.90 X-Spamd-Result: default: False [1.90 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmx.de]; R_MISSING_CHARSET(2.50)[]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; BROKEN_CONTENT_TYPE(1.50)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCPT_COUNT_SEVEN(0.00)[7]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email]; FREEMAIL_TO(0.00)[gmx.de,HansenPartnership.com,arndb.de]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-3.00)[100.00%] Authentication-Results: smtp-out2.suse.de; none X-Spam-Level: * X-Spam-Flag: NO Allocate stifb's instance of fb_info with framebuffer_alloc(). This is the preferred way of creating fb_info with associated driver data stored in struct fb_info.par. Requires several, but minor, changes through out the driver's code. The intended side effect of this patch is that the new instance of struct fb_info now has its device field correctly set to the parent device of the STI ROM. A later patch can detect if the device is the firmware's primary output. It is also now correctly located within the Linux device hierarchy. Signed-off-by: Thomas Zimmermann Tested-by: Helge Deller Reviewed-by: Helge Deller --- drivers/video/fbdev/stifb.c | 106 +++++++++++++++++++----------------- 1 file changed, 56 insertions(+), 50 deletions(-) diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c index 548d992f8cb1..36e6bcab83aa 100644 --- a/drivers/video/fbdev/stifb.c +++ b/drivers/video/fbdev/stifb.c @@ -103,7 +103,7 @@ typedef struct { } ngle_rom_t; struct stifb_info { - struct fb_info info; + struct fb_info *info; unsigned int id; ngle_rom_t ngle_rom; struct sti_struct *sti; @@ -153,15 +153,15 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS]; #define REG_44 0x210030 #define REG_45 0x210034 -#define READ_BYTE(fb,reg) gsc_readb((fb)->info.fix.mmio_start + (reg)) -#define READ_WORD(fb,reg) gsc_readl((fb)->info.fix.mmio_start + (reg)) +#define READ_BYTE(fb, reg) gsc_readb((fb)->info->fix.mmio_start + (reg)) +#define READ_WORD(fb, reg) gsc_readl((fb)->info->fix.mmio_start + (reg)) #ifndef DEBUG_STIFB_REGS # define DEBUG_OFF() # define DEBUG_ON() -# define WRITE_BYTE(value,fb,reg) gsc_writeb((value),(fb)->info.fix.mmio_start + (reg)) -# define WRITE_WORD(value,fb,reg) gsc_writel((value),(fb)->info.fix.mmio_start + (reg)) +# define WRITE_BYTE(value, fb, reg) gsc_writeb((value), (fb)->info->fix.mmio_start + (reg)) +# define WRITE_WORD(value, fb, reg) gsc_writel((value), (fb)->info->fix.mmio_start + (reg)) #else static int debug_on = 1; # define DEBUG_OFF() debug_on=0 @@ -169,11 +169,11 @@ static int __initdata stifb_bpp_pref[MAX_STI_ROMS]; # define WRITE_BYTE(value,fb,reg) do { if (debug_on) \ printk(KERN_DEBUG "%30s: WRITE_BYTE(0x%06x) = 0x%02x (old=0x%02x)\n", \ __func__, reg, value, READ_BYTE(fb,reg)); \ - gsc_writeb((value),(fb)->info.fix.mmio_start + (reg)); } while (0) + gsc_writeb((value), (fb)->info->fix.mmio_start + (reg)); } while (0) # define WRITE_WORD(value,fb,reg) do { if (debug_on) \ printk(KERN_DEBUG "%30s: WRITE_WORD(0x%06x) = 0x%08x (old=0x%08x)\n", \ __func__, reg, value, READ_WORD(fb,reg)); \ - gsc_writel((value),(fb)->info.fix.mmio_start + (reg)); } while (0) + gsc_writel((value), (fb)->info->fix.mmio_start + (reg)); } while (0) #endif /* DEBUG_STIFB_REGS */ @@ -210,13 +210,13 @@ SETUP_FB(struct stifb_info *fb) reg10_value = 0x13601000; break; case S9000_ID_A1439A: - if (fb->info.var.bits_per_pixel == 32) + if (fb->info->var.bits_per_pixel == 32) reg10_value = 0xBBA0A000; else reg10_value = 0x13601000; break; case S9000_ID_HCRX: - if (fb->info.var.bits_per_pixel == 32) + if (fb->info->var.bits_per_pixel == 32) reg10_value = 0xBBA0A000; else reg10_value = 0x13602000; @@ -254,7 +254,7 @@ static void FINISH_IMAGE_COLORMAP_ACCESS(struct stifb_info *fb) { WRITE_WORD(0x400, fb, REG_2); - if (fb->info.var.bits_per_pixel == 32) { + if (fb->info->var.bits_per_pixel == 32) { WRITE_WORD(0x83000100, fb, REG_1); } else { if (fb->id == S9000_ID_ARTIST || fb->id == CRT_ID_VISUALIZE_EG) @@ -503,7 +503,7 @@ static void ngleSetupAttrPlanes(struct stifb_info *fb, int BufferNumber) { SETUP_ATTR_ACCESS(fb, BufferNumber); - SET_ATTR_SIZE(fb, fb->info.var.xres, fb->info.var.yres); + SET_ATTR_SIZE(fb, fb->info->var.xres, fb->info->var.yres); FINISH_ATTR_ACCESS(fb); SETUP_FB(fb); } @@ -526,9 +526,9 @@ rattlerSetupPlanes(struct stifb_info *fb) SETUP_FB(fb); fb->id = saved_id; - for (y = 0; y < fb->info.var.yres; ++y) - fb_memset_io(fb->info.screen_base + y * fb->info.fix.line_length, - 0xff, fb->info.var.xres * fb->info.var.bits_per_pixel/8); + for (y = 0; y < fb->info->var.yres; ++y) + fb_memset_io(fb->info->screen_base + y * fb->info->fix.line_length, + 0xff, fb->info->var.xres * fb->info->var.bits_per_pixel/8); CRX24_SET_OVLY_MASK(fb); SETUP_FB(fb); @@ -607,7 +607,7 @@ setHyperLutBltCtl(struct stifb_info *fb, int offsetWithinLut, int length) lutBltCtl.fields.lutType = HYPER_CMAP_TYPE; /* Expect lutIndex to be 0 or 1 for image cmaps, 2 or 3 for overlay cmaps */ - if (fb->info.var.bits_per_pixel == 8) + if (fb->info->var.bits_per_pixel == 8) lutBltCtl.fields.lutOffset = 2 * 256; else lutBltCtl.fields.lutOffset = 0 * 256; @@ -688,7 +688,7 @@ ngleResetAttrPlanes(struct stifb_info *fb, unsigned int ctlPlaneReg) DataDynamic, MaskOtc, BGx(0), FGx(0))); packed_dst = 0; - packed_len = (fb->info.var.xres << 16) | fb->info.var.yres; + packed_len = (fb->info->var.xres << 16) | fb->info->var.yres; GET_FIFO_SLOTS(fb, nFreeFifoSlots, 2); NGLE_SET_DSTXY(fb, packed_dst); SET_LENXY_START_RECFILL(fb, packed_len); @@ -738,7 +738,7 @@ ngleClearOverlayPlanes(struct stifb_info *fb, int mask, int data) NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, mask); packed_dst = 0; - packed_len = (fb->info.var.xres << 16) | fb->info.var.yres; + packed_len = (fb->info->var.xres << 16) | fb->info->var.yres; NGLE_SET_DSTXY(fb, packed_dst); /* Write zeroes to overlay planes */ @@ -760,7 +760,7 @@ hyperResetPlanes(struct stifb_info *fb, int enable) NGLE_LOCK(fb); if (IS_24_DEVICE(fb)) - if (fb->info.var.bits_per_pixel == 32) + if (fb->info->var.bits_per_pixel == 32) controlPlaneReg = 0x04000F00; else controlPlaneReg = 0x00000F00; /* 0x00000800 should be enough, but lets clear all 4 bits */ @@ -890,7 +890,7 @@ SETUP_HCRX(struct stifb_info *fb) GET_FIFO_SLOTS(fb, nFreeFifoSlots, 7); if (IS_24_DEVICE(fb)) { - hyperbowl = (fb->info.var.bits_per_pixel == 32) ? + hyperbowl = (fb->info->var.bits_per_pixel == 32) ? HYPERBOWL_MODE01_8_24_LUT0_TRANSPARENT_LUT1_OPAQUE : HYPERBOWL_MODE01_8_24_LUT0_OPAQUE_LUT1_OPAQUE; @@ -924,21 +924,21 @@ SETUP_HCRX(struct stifb_info *fb) static int stifb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { - struct stifb_info *fb = container_of(info, struct stifb_info, info); + struct stifb_info *fb = info->par; - if (var->xres != fb->info.var.xres || - var->yres != fb->info.var.yres || - var->bits_per_pixel != fb->info.var.bits_per_pixel) + if (var->xres != fb->info->var.xres || + var->yres != fb->info->var.yres || + var->bits_per_pixel != fb->info->var.bits_per_pixel) return -EINVAL; var->xres_virtual = var->xres; var->yres_virtual = var->yres; var->xoffset = 0; var->yoffset = 0; - var->grayscale = fb->info.var.grayscale; - var->red.length = fb->info.var.red.length; - var->green.length = fb->info.var.green.length; - var->blue.length = fb->info.var.blue.length; + var->grayscale = fb->info->var.grayscale; + var->red.length = fb->info->var.red.length; + var->green.length = fb->info->var.green.length; + var->blue.length = fb->info->var.blue.length; return 0; } @@ -947,7 +947,7 @@ static int stifb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *info) { - struct stifb_info *fb = container_of(info, struct stifb_info, info); + struct stifb_info *fb = info->par; u32 color; if (regno >= NR_PALETTE) @@ -961,7 +961,7 @@ stifb_setcolreg(u_int regno, u_int red, u_int green, START_IMAGE_COLORMAP_ACCESS(fb); - if (unlikely(fb->info.var.grayscale)) { + if (unlikely(fb->info->var.grayscale)) { /* gray = 0.30*R + 0.59*G + 0.11*B */ color = ((red * 77) + (green * 151) + @@ -972,10 +972,10 @@ stifb_setcolreg(u_int regno, u_int red, u_int green, (blue)); } - if (fb->info.fix.visual == FB_VISUAL_DIRECTCOLOR) { - struct fb_var_screeninfo *var = &fb->info.var; + if (fb->info->fix.visual == FB_VISUAL_DIRECTCOLOR) { + struct fb_var_screeninfo *var = &fb->info->var; if (regno < 16) - ((u32 *)fb->info.pseudo_palette)[regno] = + ((u32 *)fb->info->pseudo_palette)[regno] = regno << var->red.offset | regno << var->green.offset | regno << var->blue.offset; @@ -1007,7 +1007,7 @@ stifb_setcolreg(u_int regno, u_int red, u_int green, static int stifb_blank(int blank_mode, struct fb_info *info) { - struct stifb_info *fb = container_of(info, struct stifb_info, info); + struct stifb_info *fb = info->par; int enable = (blank_mode == 0) ? ENABLE : DISABLE; switch (fb->id) { @@ -1036,12 +1036,12 @@ stifb_blank(int blank_mode, struct fb_info *info) static void stifb_copyarea(struct fb_info *info, const struct fb_copyarea *area) { - struct stifb_info *fb = container_of(info, struct stifb_info, info); + struct stifb_info *fb = info->par; SETUP_COPYAREA(fb); SETUP_HW(fb); - if (fb->info.var.bits_per_pixel == 32) { + if (fb->info->var.bits_per_pixel == 32) { WRITE_WORD(0xBBA0A000, fb, REG_10); NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffffff); @@ -1075,15 +1075,15 @@ stifb_copyarea(struct fb_info *info, const struct fb_copyarea *area) static void stifb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { - struct stifb_info *fb = container_of(info, struct stifb_info, info); + struct stifb_info *fb = info->par; if (rect->rop != ROP_COPY || - (fb->id == S9000_ID_HCRX && fb->info.var.bits_per_pixel == 32)) + (fb->id == S9000_ID_HCRX && fb->info->var.bits_per_pixel == 32)) return cfb_fillrect(info, rect); SETUP_HW(fb); - if (fb->info.var.bits_per_pixel == 32) { + if (fb->info->var.bits_per_pixel == 32) { WRITE_WORD(0xBBA0A000, fb, REG_10); NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffffff); @@ -1141,7 +1141,7 @@ stifb_init_display(struct stifb_info *fb) switch (id) { case S9000_ID_A1659A: case S9000_ID_A1439A: - if (fb->info.var.bits_per_pixel == 32) + if (fb->info->var.bits_per_pixel == 32) ngleSetupAttrPlanes(fb, BUFF1_CMAP3); else { ngleSetupAttrPlanes(fb, BUFF1_CMAP0); @@ -1151,7 +1151,7 @@ stifb_init_display(struct stifb_info *fb) break; case S9000_ID_ARTIST: case CRT_ID_VISUALIZE_EG: - if (fb->info.var.bits_per_pixel == 32) + if (fb->info->var.bits_per_pixel == 32) ngleSetupAttrPlanes(fb, BUFF1_CMAP3); else { ngleSetupAttrPlanes(fb, ARTIST_CMAP0); @@ -1193,11 +1193,11 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) char *dev_name; int bpp, xres, yres; - fb = kzalloc(sizeof(*fb), GFP_ATOMIC); - if (!fb) + info = framebuffer_alloc(sizeof(*fb), sti->dev); + if (!info) return -ENOMEM; - - info = &fb->info; + fb = info->par; + fb->info = info; /* set struct to a known state */ fix = &info->fix; @@ -1390,10 +1390,10 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) /* save for primary gfx device detection & unregister_framebuffer() */ sti->info = info; - if (register_framebuffer(&fb->info) < 0) + if (register_framebuffer(fb->info) < 0) goto out_err4; - fb_info(&fb->info, "%s %dx%d-%d frame buffer device, %s, id: %04x, mmio: 0x%04lx\n", + fb_info(fb->info, "%s %dx%d-%d frame buffer device, %s, id: %04x, mmio: 0x%04lx\n", fix->id, var->xres, var->yres, @@ -1402,6 +1402,8 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) fb->id, fix->mmio_start); + dev_set_drvdata(sti->dev, info); + return 0; @@ -1414,7 +1416,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) out_err1: iounmap(info->screen_base); out_err0: - kfree(fb); + framebuffer_release(info); sti->info = NULL; return -ENXIO; } @@ -1480,15 +1482,19 @@ stifb_cleanup(void) sti = sti_get_rom(i); if (!sti) break; - if (sti->info) { - struct fb_info *info = sti->info; - unregister_framebuffer(sti->info); + if (sti->dev) { + struct fb_info *info = dev_get_drvdata(sti->dev); + + if (!info) + continue; + unregister_framebuffer(info); release_mem_region(info->fix.mmio_start, info->fix.mmio_len); release_mem_region(info->fix.smem_start, info->fix.smem_len); if (info->screen_base) iounmap(info->screen_base); fb_dealloc_cmap(&info->cmap); framebuffer_release(info); + dev_set_drvdata(sti->dev, NULL); } sti->info = NULL; }