diff options
Diffstat (limited to 'drivers/video')
23 files changed, 220 insertions, 140 deletions
diff --git a/drivers/video/backlight/led_bl.c b/drivers/video/backlight/led_bl.c index c7aefcd6e4e3..782600601845 100644 --- a/drivers/video/backlight/led_bl.c +++ b/drivers/video/backlight/led_bl.c @@ -229,8 +229,11 @@ static void led_bl_remove(struct platform_device *pdev) backlight_device_unregister(bl); led_bl_power_off(priv); - for (i = 0; i < priv->nb_leds; i++) + for (i = 0; i < priv->nb_leds; i++) { + mutex_lock(&priv->leds[i]->led_access); led_sysfs_enable(priv->leds[i]); + mutex_unlock(&priv->leds[i]->led_access); + } } static const struct of_device_id led_bl_of_match[] = { diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c index 10129095a4c1..b19e5f73de8b 100644 --- a/drivers/video/backlight/qcom-wled.c +++ b/drivers/video/backlight/qcom-wled.c @@ -1406,9 +1406,11 @@ static int wled_configure(struct wled *wled) wled->ctrl_addr = be32_to_cpu(*prop_addr); rc = of_property_read_string(dev->of_node, "label", &wled->name); - if (rc) + if (rc) { wled->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFn", dev->of_node); - + if (!wled->name) + return -ENOMEM; + } switch (wled->version) { case 3: u32_opts = wled3_opts; diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig index bc31db6ef7d2..3e9f2bda6702 100644 --- a/drivers/video/console/Kconfig +++ b/drivers/video/console/Kconfig @@ -24,7 +24,7 @@ config VGA_CONSOLE Say Y. config MDA_CONSOLE - depends on !M68K && !PARISC && ISA + depends on VGA_CONSOLE && ISA tristate "MDA text console (dual-headed)" help Say Y here if you have an old MDA or monochrome Hercules graphics @@ -52,7 +52,7 @@ config DUMMY_CONSOLE config DUMMY_CONSOLE_COLUMNS int "Initial number of console screen columns" - depends on DUMMY_CONSOLE && !ARCH_FOOTBRIDGE + depends on DUMMY_CONSOLE && !(ARCH_FOOTBRIDGE && VGA_CONSOLE) default 160 if PARISC default 80 help @@ -62,7 +62,7 @@ config DUMMY_CONSOLE_COLUMNS config DUMMY_CONSOLE_ROWS int "Initial number of console screen rows" - depends on DUMMY_CONSOLE && !ARCH_FOOTBRIDGE + depends on DUMMY_CONSOLE && !(ARCH_FOOTBRIDGE && VGA_CONSOLE) default 64 if PARISC default 30 if ARM default 25 diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 139049368fdc..7d02470f19b9 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -85,6 +85,15 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, /* Redraw, so that we get putc(s) for output done while blanked */ return true; } + +static bool dummycon_switch(struct vc_data *vc) +{ + /* + * Redraw, so that we get putc(s) for output done while switched + * away. Informs deferred consoles to take over the display. + */ + return true; +} #else static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y, unsigned int x) { } @@ -95,6 +104,10 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, { return false; } +static bool dummycon_switch(struct vc_data *vc) +{ + return false; +} #endif static const char *dummycon_startup(void) @@ -124,11 +137,6 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top, return false; } -static bool dummycon_switch(struct vc_data *vc) -{ - return false; -} - /* * The console `switch' structure for the dummy console * diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 37bd18730fe0..f9cdbf8c53e3 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -1168,7 +1168,7 @@ static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b, c->vc_screenbuf_size - delta); c->vc_origin = vga_vram_end - c->vc_screenbuf_size; vga_rolled_over = 0; - } else + } else if (oldo - delta >= (unsigned long)c->vc_screenbuf) c->vc_origin -= delta; c->vc_scr_end = c->vc_origin + c->vc_screenbuf_size; scr_memsetw((u16 *) (c->vc_origin), c->vc_video_erase_char, diff --git a/drivers/video/fbdev/au1100fb.c b/drivers/video/fbdev/au1100fb.c index 840f22160763..6251a6b07b3a 100644 --- a/drivers/video/fbdev/au1100fb.c +++ b/drivers/video/fbdev/au1100fb.c @@ -137,13 +137,15 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi) */ int au1100fb_setmode(struct au1100fb_device *fbdev) { - struct fb_info *info = &fbdev->info; + struct fb_info *info; u32 words; int index; if (!fbdev) return -EINVAL; + info = &fbdev->info; + /* Update var-dependent FB info */ if (panel_is_active(fbdev->panel) || panel_is_color(fbdev->panel)) { if (info->var.bits_per_pixel <= 8) { diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c index 3ff1b2a8659e..f9475c14f733 100644 --- a/drivers/video/fbdev/core/bitblit.c +++ b/drivers/video/fbdev/core/bitblit.c @@ -59,12 +59,11 @@ static void bit_bmove(struct vc_data *vc, struct fb_info *info, int sy, } static void bit_clear(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int height, int width) + int sx, int height, int width, int fg, int bg) { - int bgshift = (vc->vc_hi_font_mask) ? 13 : 12; struct fb_fillrect region; - region.color = attr_bgcol_ec(bgshift, vc, info); + region.color = bg; region.dx = sx * vc->vc_font.width; region.dy = sy * vc->vc_font.height; region.width = width * vc->vc_font.width; diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index e8b4e8c119b5..893fd66b5269 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -117,9 +117,14 @@ static signed char con2fb_map_boot[MAX_NR_CONSOLES]; static struct fb_info *fbcon_info_from_console(int console) { + signed char fb; WARN_CONSOLE_UNLOCKED(); - return fbcon_registered_fb[con2fb_map[console]]; + fb = con2fb_map[console]; + if (fb < 0 || fb >= ARRAY_SIZE(fbcon_registered_fb)) + return NULL; + + return fbcon_registered_fb[fb]; } static int logo_lines; @@ -821,7 +826,8 @@ static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, fg_vc->vc_rows); } - update_screen(vc_cons[fg_console].d); + if (fg_console != unit) + update_screen(vc_cons[fg_console].d); } /** @@ -948,13 +954,13 @@ static const char *fbcon_startup(void) int rows, cols; /* - * If num_registered_fb is zero, this is a call for the dummy part. + * If fbcon_num_registered_fb is zero, this is a call for the dummy part. * The frame buffer devices weren't initialized yet. */ if (!fbcon_num_registered_fb || info_idx == -1) return display_desc; /* - * Instead of blindly using registered_fb[0], we use info_idx, set by + * Instead of blindly using fbcon_registered_fb[0], we use info_idx, set by * fbcon_fb_registered(); */ info = fbcon_registered_fb[info_idx]; @@ -1258,7 +1264,7 @@ static void __fbcon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx, { struct fb_info *info = fbcon_info_from_console(vc->vc_num); struct fbcon_ops *ops = info->fbcon_par; - + int fg, bg; struct fbcon_display *p = &fb_display[vc->vc_num]; u_int y_break; @@ -1279,16 +1285,18 @@ static void __fbcon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx, fbcon_clear_margins(vc, 0); } + fg = get_color(vc, info, vc->vc_video_erase_char, 1); + bg = get_color(vc, info, vc->vc_video_erase_char, 0); /* Split blits that cross physical y_wrap boundary */ y_break = p->vrows - p->yscroll; if (sy < y_break && sy + height - 1 >= y_break) { u_int b = y_break - sy; - ops->clear(vc, info, real_y(p, sy), sx, b, width); + ops->clear(vc, info, real_y(p, sy), sx, b, width, fg, bg); ops->clear(vc, info, real_y(p, sy + b), sx, height - b, - width); + width, fg, bg); } else - ops->clear(vc, info, real_y(p, sy), sx, height, width); + ops->clear(vc, info, real_y(p, sy), sx, height, width, fg, bg); } static void fbcon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx, @@ -1356,6 +1364,7 @@ static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, struct vc_data *svc; struct fbcon_ops *ops = info->fbcon_par; int rows, cols; + unsigned long ret = 0; p = &fb_display[unit]; @@ -1406,11 +1415,10 @@ static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); cols /= vc->vc_font.width; rows /= vc->vc_font.height; - vc_resize(vc, cols, rows); + ret = vc_resize(vc, cols, rows); - if (con_is_visible(vc)) { + if (con_is_visible(vc) && !ret) update_screen(vc); - } } static __inline__ void ywrap_up(struct vc_data *vc, int count) diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h index df70ea5ec5b3..4d97e6d8a16a 100644 --- a/drivers/video/fbdev/core/fbcon.h +++ b/drivers/video/fbdev/core/fbcon.h @@ -55,7 +55,7 @@ struct fbcon_ops { void (*bmove)(struct vc_data *vc, struct fb_info *info, int sy, int sx, int dy, int dx, int height, int width); void (*clear)(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int height, int width); + int sx, int height, int width, int fb, int bg); void (*putcs)(struct vc_data *vc, struct fb_info *info, const unsigned short *s, int count, int yy, int xx, int fg, int bg); @@ -116,42 +116,6 @@ static inline int mono_col(const struct fb_info *info) return (~(0xfff << max_len)) & 0xff; } -static inline int attr_col_ec(int shift, struct vc_data *vc, - struct fb_info *info, int is_fg) -{ - int is_mono01; - int col; - int fg; - int bg; - - if (!vc) - return 0; - - if (vc->vc_can_do_color) - return is_fg ? attr_fgcol(shift,vc->vc_video_erase_char) - : attr_bgcol(shift,vc->vc_video_erase_char); - - if (!info) - return 0; - - col = mono_col(info); - is_mono01 = info->fix.visual == FB_VISUAL_MONO01; - - if (attr_reverse(vc->vc_video_erase_char)) { - fg = is_mono01 ? col : 0; - bg = is_mono01 ? 0 : col; - } - else { - fg = is_mono01 ? 0 : col; - bg = is_mono01 ? col : 0; - } - - return is_fg ? fg : bg; -} - -#define attr_bgcol_ec(bgshift, vc, info) attr_col_ec(bgshift, vc, info, 0) -#define attr_fgcol_ec(fgshift, vc, info) attr_col_ec(fgshift, vc, info, 1) - /* * Scroll Method */ diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c index f9b794ff7d39..89ef4ba7e867 100644 --- a/drivers/video/fbdev/core/fbcon_ccw.c +++ b/drivers/video/fbdev/core/fbcon_ccw.c @@ -78,14 +78,13 @@ static void ccw_bmove(struct vc_data *vc, struct fb_info *info, int sy, } static void ccw_clear(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int height, int width) + int sx, int height, int width, int fg, int bg) { struct fbcon_ops *ops = info->fbcon_par; struct fb_fillrect region; - int bgshift = (vc->vc_hi_font_mask) ? 13 : 12; u32 vyres = GETVYRES(ops->p, info); - region.color = attr_bgcol_ec(bgshift,vc,info); + region.color = bg; region.dx = sy * vc->vc_font.height; region.dy = vyres - ((sx + width) * vc->vc_font.width); region.height = width * vc->vc_font.width; diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c index 903f6fc174e1..b9dac7940fb7 100644 --- a/drivers/video/fbdev/core/fbcon_cw.c +++ b/drivers/video/fbdev/core/fbcon_cw.c @@ -63,14 +63,13 @@ static void cw_bmove(struct vc_data *vc, struct fb_info *info, int sy, } static void cw_clear(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int height, int width) + int sx, int height, int width, int fg, int bg) { struct fbcon_ops *ops = info->fbcon_par; struct fb_fillrect region; - int bgshift = (vc->vc_hi_font_mask) ? 13 : 12; u32 vxres = GETVXRES(ops->p, info); - region.color = attr_bgcol_ec(bgshift,vc,info); + region.color = bg; region.dx = vxres - ((sy + height) * vc->vc_font.height); region.dy = sx * vc->vc_font.width; region.height = width * vc->vc_font.width; diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c index 594331936fd3..0af7913a2abd 100644 --- a/drivers/video/fbdev/core/fbcon_ud.c +++ b/drivers/video/fbdev/core/fbcon_ud.c @@ -64,15 +64,14 @@ static void ud_bmove(struct vc_data *vc, struct fb_info *info, int sy, } static void ud_clear(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int height, int width) + int sx, int height, int width, int fg, int bg) { struct fbcon_ops *ops = info->fbcon_par; struct fb_fillrect region; - int bgshift = (vc->vc_hi_font_mask) ? 13 : 12; u32 vyres = GETVYRES(ops->p, info); u32 vxres = GETVXRES(ops->p, info); - region.color = attr_bgcol_ec(bgshift,vc,info); + region.color = bg; region.dy = vyres - ((sy + height) * vc->vc_font.height); region.dx = vxres - ((sx + width) * vc->vc_font.width); region.width = width * vc->vc_font.width; diff --git a/drivers/video/fbdev/core/fbcvt.c b/drivers/video/fbdev/core/fbcvt.c index 64843464c661..cd3821bd82e5 100644 --- a/drivers/video/fbdev/core/fbcvt.c +++ b/drivers/video/fbdev/core/fbcvt.c @@ -312,7 +312,7 @@ int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb) cvt.f_refresh = cvt.refresh; cvt.interlace = 1; - if (!cvt.xres || !cvt.yres || !cvt.refresh) { + if (!cvt.xres || !cvt.yres || !cvt.refresh || cvt.f_refresh > INT_MAX) { printk(KERN_INFO "fbcvt: Invalid input parameters\n"); return 1; } diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 3c568cff2913..6a033bf17ab6 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -328,8 +328,10 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) !list_empty(&info->modelist)) ret = fb_add_videomode(&mode, &info->modelist); - if (ret) + if (ret) { + info->var = old_var; return ret; + } event.info = info; event.data = &mode; @@ -388,7 +390,7 @@ static int fb_check_foreignness(struct fb_info *fi) static int do_register_framebuffer(struct fb_info *fb_info) { - int i; + int i, err = 0; struct fb_videomode mode; if (fb_check_foreignness(fb_info)) @@ -397,10 +399,21 @@ static int do_register_framebuffer(struct fb_info *fb_info) if (num_registered_fb == FB_MAX) return -ENXIO; - num_registered_fb++; for (i = 0 ; i < FB_MAX; i++) if (!registered_fb[i]) break; + + if (i >= FB_MAX) + return -ENXIO; + + if (!fb_info->modelist.prev || !fb_info->modelist.next) + INIT_LIST_HEAD(&fb_info->modelist); + + fb_var_to_videomode(&mode, &fb_info->var); + err = fb_add_videomode(&mode, &fb_info->modelist); + if (err < 0) + return err; + fb_info->node = i; refcount_set(&fb_info->count, 1); mutex_init(&fb_info->lock); @@ -426,16 +439,12 @@ static int do_register_framebuffer(struct fb_info *fb_info) if (bitmap_empty(fb_info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT)) bitmap_fill(fb_info->pixmap.blit_y, FB_MAX_BLIT_HEIGHT); - if (!fb_info->modelist.prev || !fb_info->modelist.next) - INIT_LIST_HEAD(&fb_info->modelist); - if (fb_info->skip_vt_switch) pm_vt_switch_required(fb_info->device, false); else pm_vt_switch_required(fb_info->device, true); - fb_var_to_videomode(&mode, &fb_info->var); - fb_add_videomode(&mode, &fb_info->modelist); + num_registered_fb++; registered_fb[i] = fb_info; #ifdef CONFIG_GUMSTIX_AM200EPD diff --git a/drivers/video/fbdev/core/tileblit.c b/drivers/video/fbdev/core/tileblit.c index eff7ec4da167..d342b90c42b7 100644 --- a/drivers/video/fbdev/core/tileblit.c +++ b/drivers/video/fbdev/core/tileblit.c @@ -32,16 +32,14 @@ static void tile_bmove(struct vc_data *vc, struct fb_info *info, int sy, } static void tile_clear(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int height, int width) + int sx, int height, int width, int fg, int bg) { struct fb_tilerect rect; - int bgshift = (vc->vc_hi_font_mask) ? 13 : 12; - int fgshift = (vc->vc_hi_font_mask) ? 9 : 8; rect.index = vc->vc_video_erase_char & ((vc->vc_hi_font_mask) ? 0x1ff : 0xff); - rect.fg = attr_fgcol_ec(fgshift, vc, info); - rect.bg = attr_bgcol_ec(bgshift, vc, info); + rect.fg = fg; + rect.bg = bg; rect.sx = sx; rect.sy = sy; rect.width = width; @@ -76,7 +74,42 @@ static void tile_putcs(struct vc_data *vc, struct fb_info *info, static void tile_clear_margins(struct vc_data *vc, struct fb_info *info, int color, int bottom_only) { - return; + unsigned int cw = vc->vc_font.width; + unsigned int ch = vc->vc_font.height; + unsigned int rw = info->var.xres - (vc->vc_cols*cw); + unsigned int bh = info->var.yres - (vc->vc_rows*ch); + unsigned int rs = info->var.xres - rw; + unsigned int bs = info->var.yres - bh; + unsigned int vwt = info->var.xres_virtual / cw; + unsigned int vht = info->var.yres_virtual / ch; + struct fb_tilerect rect; + + rect.index = vc->vc_video_erase_char & + ((vc->vc_hi_font_mask) ? 0x1ff : 0xff); + rect.fg = color; + rect.bg = color; + + if ((int) rw > 0 && !bottom_only) { + rect.sx = (info->var.xoffset + rs + cw - 1) / cw; + rect.sy = 0; + rect.width = (rw + cw - 1) / cw; + rect.height = vht; + if (rect.width + rect.sx > vwt) + rect.width = vwt - rect.sx; + if (rect.sx < vwt) + info->tileops->fb_tilefill(info, &rect); + } + + if ((int) bh > 0) { + rect.sx = info->var.xoffset / cw; + rect.sy = (info->var.yoffset + bs) / ch; + rect.width = rs / cw; + rect.height = (bh + ch - 1) / ch; + if (rect.height + rect.sy > vht) + rect.height = vht - rect.sy; + if (rect.sy < vht) + info->tileops->fb_tilefill(info, &rect); + } } static void tile_cursor(struct vc_data *vc, struct fb_info *info, bool enable, diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c index 5ac8201c3533..b71d15794ce8 100644 --- a/drivers/video/fbdev/fsl-diu-fb.c +++ b/drivers/video/fbdev/fsl-diu-fb.c @@ -1827,6 +1827,7 @@ static void fsl_diu_remove(struct platform_device *pdev) int i; data = dev_get_drvdata(&pdev->dev); + device_remove_file(&pdev->dev, &data->dev_attr); disable_lcdc(&data->fsl_diu_info[0]); free_irq(data->irq, data->diu_reg); diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c index 7fdb5edd7e2e..75338ffc703f 100644 --- a/drivers/video/fbdev/hyperv_fb.c +++ b/drivers/video/fbdev/hyperv_fb.c @@ -282,6 +282,8 @@ static uint screen_depth; static uint screen_fb_size; static uint dio_fb_size; /* FB size for deferred IO */ +static void hvfb_putmem(struct fb_info *info); + /* Send message to Hyper-V host */ static inline int synthvid_send(struct hv_device *hdev, struct synthvid_msg *msg) @@ -863,6 +865,17 @@ static void hvfb_ops_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, } /* + * fb_ops.fb_destroy is called by the last put_fb_info() call at the end + * of unregister_framebuffer() or fb_release(). Do any cleanup related to + * framebuffer here. + */ +static void hvfb_destroy(struct fb_info *info) +{ + hvfb_putmem(info); + framebuffer_release(info); +} + +/* * TODO: GEN1 codepaths allocate from system or DMA-able memory. Fix the * driver to use the _SYSMEM_ or _DMAMEM_ helpers in these cases. */ @@ -877,6 +890,7 @@ static const struct fb_ops hvfb_ops = { .fb_set_par = hvfb_set_par, .fb_setcolreg = hvfb_setcolreg, .fb_blank = hvfb_blank, + .fb_destroy = hvfb_destroy, }; /* Get options from kernel paramenter "video=" */ @@ -952,7 +966,7 @@ static phys_addr_t hvfb_get_phymem(struct hv_device *hdev, } /* Release contiguous physical memory */ -static void hvfb_release_phymem(struct hv_device *hdev, +static void hvfb_release_phymem(struct device *device, phys_addr_t paddr, unsigned int size) { unsigned int order = get_order(size); @@ -960,7 +974,7 @@ static void hvfb_release_phymem(struct hv_device *hdev, if (order <= MAX_PAGE_ORDER) __free_pages(pfn_to_page(paddr >> PAGE_SHIFT), order); else - dma_free_coherent(&hdev->device, + dma_free_coherent(device, round_up(size, PAGE_SIZE), phys_to_virt(paddr), paddr); @@ -989,6 +1003,7 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) base = pci_resource_start(pdev, 0); size = pci_resource_len(pdev, 0); + aperture_remove_conflicting_devices(base, size, KBUILD_MODNAME); /* * For Gen 1 VM, we can directly use the contiguous memory @@ -1010,11 +1025,21 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) goto getmem_done; } pr_info("Unable to allocate enough contiguous physical memory on Gen 1 VM. Using MMIO instead.\n"); + } else { + aperture_remove_all_conflicting_devices(KBUILD_MODNAME); } /* - * Cannot use the contiguous physical memory. - * Allocate mmio space for framebuffer. + * Cannot use contiguous physical memory, so allocate MMIO space for + * the framebuffer. At this point in the function, conflicting devices + * that might have claimed the framebuffer MMIO space based on + * screen_info.lfb_base must have already been removed so that + * vmbus_allocate_mmio() does not allocate different MMIO space. If the + * kdump image were to be loaded using kexec_file_load(), the + * framebuffer location in the kdump image would be set from + * screen_info.lfb_base at the time that kdump is enabled. If the + * framebuffer has moved elsewhere, this could be the wrong location, + * causing kdump to hang when efifb (for example) loads. */ dio_fb_size = screen_width * screen_height * screen_depth / 8; @@ -1051,11 +1076,6 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) info->screen_size = dio_fb_size; getmem_done: - if (base && size) - aperture_remove_conflicting_devices(base, size, KBUILD_MODNAME); - else - aperture_remove_all_conflicting_devices(KBUILD_MODNAME); - if (!gen2vm) pci_dev_put(pdev); @@ -1074,16 +1094,16 @@ err1: } /* Release the framebuffer */ -static void hvfb_putmem(struct hv_device *hdev, struct fb_info *info) +static void hvfb_putmem(struct fb_info *info) { struct hvfb_par *par = info->par; if (par->need_docopy) { vfree(par->dio_vp); - iounmap(info->screen_base); + iounmap(par->mmio_vp); vmbus_free_mmio(par->mem->start, screen_fb_size); } else { - hvfb_release_phymem(hdev, info->fix.smem_start, + hvfb_release_phymem(info->device, info->fix.smem_start, screen_fb_size); } @@ -1172,7 +1192,7 @@ static int hvfb_probe(struct hv_device *hdev, if (ret) goto error; - ret = register_framebuffer(info); + ret = devm_register_framebuffer(&hdev->device, info); if (ret) { pr_err("Unable to register framebuffer\n"); goto error; @@ -1197,7 +1217,7 @@ static int hvfb_probe(struct hv_device *hdev, error: fb_deferred_io_cleanup(info); - hvfb_putmem(hdev, info); + hvfb_putmem(info); error2: vmbus_close(hdev->channel); error1: @@ -1220,14 +1240,10 @@ static void hvfb_remove(struct hv_device *hdev) fb_deferred_io_cleanup(info); - unregister_framebuffer(info); cancel_delayed_work_sync(&par->dwork); vmbus_close(hdev->channel); hv_set_drvdata(hdev, NULL); - - hvfb_putmem(hdev, info); - framebuffer_release(info); } static int hvfb_suspend(struct hv_device *hdev) diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c index ff343e4ed35b..c0bdfb10f681 100644 --- a/drivers/video/fbdev/imxfb.c +++ b/drivers/video/fbdev/imxfb.c @@ -1007,8 +1007,13 @@ static int imxfb_probe(struct platform_device *pdev) info->fix.smem_start = fbi->map_dma; INIT_LIST_HEAD(&info->modelist); - for (i = 0; i < fbi->num_modes; i++) - fb_add_videomode(&fbi->mode[i].mode, &info->modelist); + for (i = 0; i < fbi->num_modes; i++) { + ret = fb_add_videomode(&fbi->mode[i].mode, &info->modelist); + if (ret) { + dev_err(&pdev->dev, "Failed to add videomode\n"); + goto failed_cmap; + } + } /* * This makes sure that our colour bitfield diff --git a/drivers/video/fbdev/omap/lcd_dma.c b/drivers/video/fbdev/omap/lcd_dma.c index f85817635a8c..0da23c57e475 100644 --- a/drivers/video/fbdev/omap/lcd_dma.c +++ b/drivers/video/fbdev/omap/lcd_dma.c @@ -432,8 +432,8 @@ static int __init omap_init_lcd_dma(void) spin_lock_init(&lcd_dma.lock); - r = request_irq(INT_DMA_LCD, lcd_dma_irq_handler, 0, - "LCD DMA", NULL); + r = request_threaded_irq(INT_DMA_LCD, NULL, lcd_dma_irq_handler, + IRQF_ONESHOT, "LCD DMA", NULL); if (r != 0) pr_err("unable to request IRQ for LCD DMA (error %d)\n", r); diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c index 5832485ab998..c29b6236952b 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c @@ -2749,9 +2749,13 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi, bool mem_to_mem) { int r; - enum omap_overlay_caps caps = dss_feat_get_overlay_caps(plane); + enum omap_overlay_caps caps; enum omap_channel channel; + if (plane == OMAP_DSS_WB) + return -EINVAL; + + caps = dss_feat_get_overlay_caps(plane); channel = dispc_ovl_get_channel_out(plane); DSSDBG("dispc_ovl_setup %d, pa %pad, pa_uv %pad, sw %d, %d,%d, %dx%d ->" diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c index d5a43b3bf45e..c46108a16a9d 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c @@ -102,6 +102,7 @@ struct device_node *dss_of_port_get_parent_device(struct device_node *port) np = of_get_next_parent(np); } + of_node_put(np); return NULL; } diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c index 86ecbb2d86db..2eb27ebf822e 100644 --- a/drivers/video/fbdev/sm501fb.c +++ b/drivers/video/fbdev/sm501fb.c @@ -326,6 +326,13 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var, if (var->xres_virtual > 4096 || var->yres_virtual > 2048) return -EINVAL; + /* geometry sanity checks */ + if (var->xres + var->xoffset > var->xres_virtual) + return -EINVAL; + + if (var->yres + var->yoffset > var->yres_virtual) + return -EINVAL; + /* can cope with 8,16 or 32bpp */ if (var->bits_per_pixel <= 8) diff --git a/drivers/video/screen_info_pci.c b/drivers/video/screen_info_pci.c index 6c5833517141..66bfc1d0a6dc 100644 --- a/drivers/video/screen_info_pci.c +++ b/drivers/video/screen_info_pci.c @@ -7,8 +7,8 @@ static struct pci_dev *screen_info_lfb_pdev; static size_t screen_info_lfb_bar; -static resource_size_t screen_info_lfb_offset; -static struct resource screen_info_lfb_res = DEFINE_RES_MEM(0, 0); +static resource_size_t screen_info_lfb_res_start; // original start of resource +static resource_size_t screen_info_lfb_offset; // framebuffer offset within resource static bool __screen_info_relocation_is_valid(const struct screen_info *si, struct resource *pr) { @@ -31,7 +31,7 @@ void screen_info_apply_fixups(void) if (screen_info_lfb_pdev) { struct resource *pr = &screen_info_lfb_pdev->resource[screen_info_lfb_bar]; - if (pr->start != screen_info_lfb_res.start) { + if (pr->start != screen_info_lfb_res_start) { if (__screen_info_relocation_is_valid(si, pr)) { /* * Only update base if we have an actual @@ -47,46 +47,67 @@ void screen_info_apply_fixups(void) } } +static int __screen_info_lfb_pci_bus_region(const struct screen_info *si, unsigned int type, + struct pci_bus_region *r) +{ + u64 base, size; + + base = __screen_info_lfb_base(si); + if (!base) + return -EINVAL; + + size = __screen_info_lfb_size(si, type); + if (!size) + return -EINVAL; + + r->start = base; + r->end = base + size - 1; + + return 0; +} + static void screen_info_fixup_lfb(struct pci_dev *pdev) { unsigned int type; - struct resource res[SCREEN_INFO_MAX_RESOURCES]; - size_t i, numres; + struct pci_bus_region bus_region; int ret; + struct resource r = { + .flags = IORESOURCE_MEM, + }; + const struct resource *pr; const struct screen_info *si = &screen_info; if (screen_info_lfb_pdev) return; // already found type = screen_info_video_type(si); - if (type != VIDEO_TYPE_EFI) - return; // only applies to EFI + if (!__screen_info_has_lfb(type)) + return; // only applies to EFI; maybe VESA - ret = screen_info_resources(si, res, ARRAY_SIZE(res)); + ret = __screen_info_lfb_pci_bus_region(si, type, &bus_region); if (ret < 0) return; - numres = ret; - for (i = 0; i < numres; ++i) { - struct resource *r = &res[i]; - const struct resource *pr; - - if (!(r->flags & IORESOURCE_MEM)) - continue; - pr = pci_find_resource(pdev, r); - if (!pr) - continue; - - /* - * We've found a PCI device with the framebuffer - * resource. Store away the parameters to track - * relocation of the framebuffer aperture. - */ - screen_info_lfb_pdev = pdev; - screen_info_lfb_bar = pr - pdev->resource; - screen_info_lfb_offset = r->start - pr->start; - memcpy(&screen_info_lfb_res, r, sizeof(screen_info_lfb_res)); - } + /* + * Translate the PCI bus address to resource. Account + * for an offset if the framebuffer is behind a PCI host + * bridge. + */ + pcibios_bus_to_resource(pdev->bus, &r, &bus_region); + + pr = pci_find_resource(pdev, &r); + if (!pr) + return; + + /* + * We've found a PCI device with the framebuffer + * resource. Store away the parameters to track + * relocation of the framebuffer aperture. + */ + screen_info_lfb_pdev = pdev; + screen_info_lfb_bar = pr - pdev->resource; + screen_info_lfb_offset = r.start - pr->start; + screen_info_lfb_res_start = bus_region.start; } DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY, 16, screen_info_fixup_lfb); |