diff options
Diffstat (limited to 'drivers/video')
28 files changed, 364 insertions, 3172 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index a1422ddd1c22..a7a3fbaf7c29 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -258,6 +258,17 @@ config BACKLIGHT_PWM If you have a LCD backlight adjustable by PWM, say Y to enable this driver. +config BACKLIGHT_CGBC + tristate "Congatec Board Controller (CGBC) backlight support" + depends on MFD_CGBC && X86 + help + Say Y here to enable support for LCD backlight control on Congatec + x86-based boards via the CGBC (Congatec Board Controller). + + This driver provides backlight brightness control through the Linux + backlight subsystem. It communicates with the board controller to + adjust LCD backlight using PWM signals. + config BACKLIGHT_DA903X tristate "Backlight Driver for DA9030/DA9034 using WLED" depends on PMIC_DA903X diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index a5d62b018102..794820a98ed4 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_BACKLIGHT_APPLE_DWI) += apple_dwi_bl.o obj-$(CONFIG_BACKLIGHT_AS3711) += as3711_bl.o obj-$(CONFIG_BACKLIGHT_AW99706) += aw99706.o obj-$(CONFIG_BACKLIGHT_BD6107) += bd6107.o +obj-$(CONFIG_BACKLIGHT_CGBC) += cgbc_bl.o obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o obj-$(CONFIG_BACKLIGHT_DA903X) += da903x_bl.o obj-$(CONFIG_BACKLIGHT_DA9052) += da9052_bl.o diff --git a/drivers/video/backlight/aw99706.c b/drivers/video/backlight/aw99706.c index df5b23b2f753..938f352aaab7 100644 --- a/drivers/video/backlight/aw99706.c +++ b/drivers/video/backlight/aw99706.c @@ -12,7 +12,7 @@ #include <linux/backlight.h> #include <linux/bitfield.h> #include <linux/delay.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/kernel.h> #include <linux/module.h> diff --git a/drivers/video/backlight/cgbc_bl.c b/drivers/video/backlight/cgbc_bl.c new file mode 100644 index 000000000000..ab27e14338a8 --- /dev/null +++ b/drivers/video/backlight/cgbc_bl.c @@ -0,0 +1,180 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Congatec Board Controller (CGBC) Backlight Driver + * + * This driver provides backlight control for LCD displays connected to + * Congatec boards via the CGBC (Congatec Board Controller). It integrates + * with the Linux backlight subsystem and communicates with hardware through + * the cgbc-core module. + * + * Copyright (C) 2025 Novatron Oy + * + * Author: Petri Karhula <petri.karhula@novatron.fi> + */ + +#include <linux/backlight.h> +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <linux/mfd/cgbc.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#define BLT_PWM_DUTY_MASK GENMASK(6, 0) + +/* CGBC command for PWM brightness control*/ +#define CGBC_CMD_BLT0_PWM 0x75 + +#define CGBC_BL_MAX_BRIGHTNESS 100 + +/** + * CGBC backlight driver data + * @dev: Pointer to the platform device + * @cgbc: Pointer to the parent CGBC device data + * @current_brightness: Current brightness level (0-100) + */ +struct cgbc_bl_data { + struct device *dev; + struct cgbc_device_data *cgbc; + unsigned int current_brightness; +}; + +static int cgbc_bl_read_brightness(struct cgbc_bl_data *bl_data) +{ + u8 cmd_buf[4] = { CGBC_CMD_BLT0_PWM }; + u8 reply_buf[3]; + int ret; + + ret = cgbc_command(bl_data->cgbc, cmd_buf, sizeof(cmd_buf), + reply_buf, sizeof(reply_buf), NULL); + if (ret < 0) + return ret; + + /* + * Get only PWM duty factor percentage, + * ignore polarity inversion bit (bit 7) + */ + bl_data->current_brightness = FIELD_GET(BLT_PWM_DUTY_MASK, reply_buf[0]); + + return 0; +} + +static int cgbc_bl_update_status(struct backlight_device *bl) +{ + struct cgbc_bl_data *bl_data = bl_get_data(bl); + u8 cmd_buf[4] = { CGBC_CMD_BLT0_PWM }; + u8 reply_buf[3]; + u8 brightness; + int ret; + + brightness = backlight_get_brightness(bl); + + if (brightness != bl_data->current_brightness) { + /* Read the current values */ + ret = cgbc_command(bl_data->cgbc, cmd_buf, sizeof(cmd_buf), reply_buf, + sizeof(reply_buf), NULL); + if (ret < 0) { + dev_err(bl_data->dev, "Failed to read PWM settings: %d\n", ret); + return ret; + } + + /* + * Prepare command buffer for writing new settings. Only 2nd byte is changed + * to set new brightness (PWM duty cycle %). Other values (polarity, frequency) + * are preserved from the read values. + */ + cmd_buf[1] = (reply_buf[0] & ~BLT_PWM_DUTY_MASK) | + FIELD_PREP(BLT_PWM_DUTY_MASK, brightness); + cmd_buf[2] = reply_buf[1]; + cmd_buf[3] = reply_buf[2]; + + ret = cgbc_command(bl_data->cgbc, cmd_buf, sizeof(cmd_buf), reply_buf, + sizeof(reply_buf), NULL); + if (ret < 0) { + dev_err(bl_data->dev, "Failed to set brightness: %d\n", ret); + return ret; + } + + bl_data->current_brightness = reply_buf[0] & BLT_PWM_DUTY_MASK; + + /* Verify the setting was applied correctly */ + if (bl_data->current_brightness != brightness) { + dev_err(bl_data->dev, + "Brightness setting verification failed (got %u, expected %u)\n", + bl_data->current_brightness, (unsigned int)brightness); + return -EIO; + } + } + + return 0; +} + +static int cgbc_bl_get_brightness(struct backlight_device *bl) +{ + struct cgbc_bl_data *bl_data = bl_get_data(bl); + int ret; + + ret = cgbc_bl_read_brightness(bl_data); + if (ret < 0) { + dev_err(bl_data->dev, "Failed to read brightness: %d\n", ret); + return ret; + } + + return bl_data->current_brightness; +} + +static const struct backlight_ops cgbc_bl_ops = { + .options = BL_CORE_SUSPENDRESUME, + .update_status = cgbc_bl_update_status, + .get_brightness = cgbc_bl_get_brightness, +}; + +static int cgbc_bl_probe(struct platform_device *pdev) +{ + struct cgbc_device_data *cgbc = dev_get_drvdata(pdev->dev.parent); + struct backlight_properties props = { }; + struct backlight_device *bl_dev; + struct cgbc_bl_data *bl_data; + int ret; + + bl_data = devm_kzalloc(&pdev->dev, sizeof(*bl_data), GFP_KERNEL); + if (!bl_data) + return -ENOMEM; + + bl_data->dev = &pdev->dev; + bl_data->cgbc = cgbc; + + ret = cgbc_bl_read_brightness(bl_data); + if (ret < 0) + return dev_err_probe(&pdev->dev, ret, + "Failed to read initial brightness\n"); + + props.type = BACKLIGHT_PLATFORM; + props.max_brightness = CGBC_BL_MAX_BRIGHTNESS; + props.brightness = bl_data->current_brightness; + props.scale = BACKLIGHT_SCALE_LINEAR; + + bl_dev = devm_backlight_device_register(&pdev->dev, "cgbc-backlight", + &pdev->dev, bl_data, + &cgbc_bl_ops, &props); + if (IS_ERR(bl_dev)) + return dev_err_probe(&pdev->dev, PTR_ERR(bl_dev), + "Failed to register backlight device\n"); + + platform_set_drvdata(pdev, bl_data); + + return 0; +} + +static struct platform_driver cgbc_bl_driver = { + .driver = { + .name = "cgbc-backlight", + }, + .probe = cgbc_bl_probe, +}; + +module_platform_driver(cgbc_bl_driver); + +MODULE_AUTHOR("Petri Karhula <petri.karhula@novatron.fi>"); +MODULE_DESCRIPTION("Congatec Board Controller (CGBC) Backlight Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:cgbc-backlight"); diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c index a63bb42c8f8b..8054e4787725 100644 --- a/drivers/video/backlight/qcom-wled.c +++ b/drivers/video/backlight/qcom-wled.c @@ -1244,6 +1244,15 @@ static const struct wled_var_cfg wled4_ovp_cfg = { .size = ARRAY_SIZE(wled4_ovp_values), }; +static const u32 pmi8994_wled_ovp_values[] = { + 31000, 29500, 19400, 17800, +}; + +static const struct wled_var_cfg pmi8994_wled_ovp_cfg = { + .values = pmi8994_wled_ovp_values, + .size = ARRAY_SIZE(pmi8994_wled_ovp_values), +}; + static inline u32 wled5_ovp_values_fn(u32 idx) { /* @@ -1357,6 +1366,29 @@ static int wled_configure(struct wled *wled) }, }; + const struct wled_u32_opts pmi8994_wled_opts[] = { + { + .name = "qcom,current-boost-limit", + .val_ptr = &cfg->boost_i_limit, + .cfg = &wled4_boost_i_limit_cfg, + }, + { + .name = "qcom,current-limit-microamp", + .val_ptr = &cfg->string_i_limit, + .cfg = &wled4_string_i_limit_cfg, + }, + { + .name = "qcom,ovp-millivolt", + .val_ptr = &cfg->ovp, + .cfg = &pmi8994_wled_ovp_cfg, + }, + { + .name = "qcom,switching-freq", + .val_ptr = &cfg->switch_freq, + .cfg = &wled3_switch_freq_cfg, + }, + }; + const struct wled_u32_opts wled5_opts[] = { { .name = "qcom,current-boost-limit", @@ -1423,8 +1455,14 @@ static int wled_configure(struct wled *wled) break; case 4: - u32_opts = wled4_opts; - size = ARRAY_SIZE(wled4_opts); + if (of_device_is_compatible(dev->of_node, "qcom,pmi8950-wled") || + of_device_is_compatible(dev->of_node, "qcom,pmi8994-wled")) { + u32_opts = pmi8994_wled_opts; + size = ARRAY_SIZE(pmi8994_wled_opts); + } else { + u32_opts = wled4_opts; + size = ARRAY_SIZE(wled4_opts); + } *cfg = wled4_config_defaults; wled->wled_set_brightness = wled4_set_brightness; wled->wled_sync_toggle = wled3_sync_toggle; diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c index 242415366074..337e04236d6d 100644 --- a/drivers/video/console/newport_con.c +++ b/drivers/video/console/newport_con.c @@ -95,7 +95,7 @@ static inline void newport_init_cmap(void) static const struct linux_logo *newport_show_logo(void) { -#ifdef CONFIG_LOGO_SGI_CLUT224 +#ifdef CONFIG_LOGO_LINUX_CLUT224 const struct linux_logo *logo = fb_find_logo(8); const unsigned char *clut; const unsigned char *data; @@ -127,7 +127,7 @@ static const struct linux_logo *newport_show_logo(void) return logo; #else return NULL; -#endif /* CONFIG_LOGO_SGI_CLUT224 */ +#endif /* CONFIG_LOGO_LINUX_CLUT224 */ } static inline void newport_clear_screen(int xstart, int ystart, int xend, diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index a733f90eca55..45733522ff48 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1770,17 +1770,6 @@ config FB_BROADSHEET and could also have been called by other names when coupled with a bridge adapter. -config FB_HYPERV - tristate "Microsoft Hyper-V Synthetic Video support (DEPRECATED)" - depends on FB && HYPERV_VMBUS - select DMA_CMA if HAVE_DMA_CONTIGUOUS && CMA - select FB_IOMEM_HELPERS_DEFERRED - help - This framebuffer driver supports Microsoft Hyper-V Synthetic Video. - - This driver is deprecated, please use the Hyper-V DRM driver at - drivers/gpu/drm/hyperv (CONFIG_DRM_HYPERV) instead. - config FB_SIMPLE tristate "Simple framebuffer support" depends on FB diff --git a/drivers/video/fbdev/Makefile b/drivers/video/fbdev/Makefile index b3d12f977c06..36a18d958ba0 100644 --- a/drivers/video/fbdev/Makefile +++ b/drivers/video/fbdev/Makefile @@ -111,7 +111,6 @@ obj-y += omap2/ obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o obj-$(CONFIG_FB_CARMINE) += carminefb.o obj-$(CONFIG_FB_MB862XX) += mb862xx/ -obj-$(CONFIG_FB_HYPERV) += hyperv_fb.o obj-$(CONFIG_FB_OPENCORES) += ocfb.o obj-$(CONFIG_FB_SM712) += sm712fb.o diff --git a/drivers/video/fbdev/au1100fb.c b/drivers/video/fbdev/au1100fb.c index 6251a6b07b3a..feaa1061c436 100644 --- a/drivers/video/fbdev/au1100fb.c +++ b/drivers/video/fbdev/au1100fb.c @@ -567,13 +567,16 @@ int au1100fb_drv_suspend(struct platform_device *dev, pm_message_t state) int au1100fb_drv_resume(struct platform_device *dev) { struct au1100fb_device *fbdev = platform_get_drvdata(dev); + int ret; if (!fbdev) return 0; memcpy(fbdev->regs, &fbregs, sizeof(struct au1100fb_regs)); - clk_enable(fbdev->lcdclk); + ret = clk_enable(fbdev->lcdclk); + if (ret) + return ret; /* Unblank the LCD */ au1100fb_fb_blank(VESA_NO_BLANKING, &fbdev->info); diff --git a/drivers/video/fbdev/au1200fb.c b/drivers/video/fbdev/au1200fb.c index ed770222660b..685e629e7e16 100644 --- a/drivers/video/fbdev/au1200fb.c +++ b/drivers/video/fbdev/au1200fb.c @@ -1724,8 +1724,10 @@ static int au1200fb_drv_probe(struct platform_device *dev) /* Now hook interrupt too */ irq = platform_get_irq(dev, 0); - if (irq < 0) - return irq; + if (irq < 0) { + ret = irq; + goto failed; + } ret = request_irq(irq, au1200fb_handle_irq, IRQF_SHARED, "lcd", (void *)dev); diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 34ea14412ace..98387c42e4e5 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -1068,7 +1068,8 @@ static void fbcon_init(struct vc_data *vc, bool init) return; if (!info->fbcon_par) - con2fb_acquire_newinfo(vc, info, vc->vc_num); + if (con2fb_acquire_newinfo(vc, info, vc->vc_num)) + return; /* If we are not the first console on this fb, copy the font from that console */ @@ -1607,12 +1608,10 @@ static void fbcon_redraw_move(struct vc_data *vc, struct fbcon_display *p, start = s; } } - console_conditional_schedule(); s++; } while (s < le); if (s > start) fbcon_putcs(vc, start, s - start, dy, x); - console_conditional_schedule(); dy++; } } @@ -1648,14 +1647,12 @@ static void fbcon_redraw_blit(struct vc_data *vc, struct fb_info *info, } scr_writew(c, d); - console_conditional_schedule(); s++; d++; } while (s < le); if (s > start) par->bitops->bmove(vc, info, line + ycount, x, line, x, 1, s - start); - console_conditional_schedule(); if (ycount > 0) line++; else { @@ -1703,13 +1700,11 @@ static void fbcon_redraw(struct vc_data *vc, int line, int count, int offset) } } scr_writew(c, d); - console_conditional_schedule(); s++; d++; } while (s < le); if (s > start) fbcon_putcs(vc, start, s - start, line, x); - console_conditional_schedule(); if (offset > 0) line++; else { diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h index 1cd10a7faab0..fca14e9b729b 100644 --- a/drivers/video/fbdev/core/fbcon.h +++ b/drivers/video/fbdev/core/fbcon.h @@ -30,7 +30,6 @@ struct fbcon_display { #ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION u_short scrollmode; /* Scroll Method, use fb_scrollmode() */ #endif - u_short inverse; /* != 0 text black on white as default */ short yscroll; /* Hardware scrolling */ int vrows; /* number of virtual rows */ int cursor_shape; diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index eff757ebbed1..cf199038f069 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -100,7 +100,7 @@ EXPORT_SYMBOL(fb_pad_aligned_buffer); void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx, u32 height, u32 shift_high, u32 shift_low, u32 mod) { - u8 mask = (u8) (0xfff << shift_high), tmp; + u8 mask = (u8) (0xff << shift_high), tmp; int i, j; for (i = height; i--; ) { diff --git a/drivers/video/fbdev/core/fbsysfs.c b/drivers/video/fbdev/core/fbsysfs.c index b8344c40073b..baa2bae0fb5b 100644 --- a/drivers/video/fbdev/core/fbsysfs.c +++ b/drivers/video/fbdev/core/fbsysfs.c @@ -12,8 +12,6 @@ #include "fb_internal.h" -#define FB_SYSFS_FLAG_ATTR 1 - static int activate(struct fb_info *fb_info, struct fb_var_screeninfo *var) { int err; @@ -451,33 +449,7 @@ static struct attribute *fb_device_attrs[] = { NULL, }; -static const struct attribute_group fb_device_attr_group = { - .attrs = fb_device_attrs, -}; - -static int fb_init_device(struct fb_info *fb_info) -{ - int ret; - - dev_set_drvdata(fb_info->dev, fb_info); - - fb_info->class_flag |= FB_SYSFS_FLAG_ATTR; - - ret = device_add_group(fb_info->dev, &fb_device_attr_group); - if (ret) - fb_info->class_flag &= ~FB_SYSFS_FLAG_ATTR; - - return 0; -} - -static void fb_cleanup_device(struct fb_info *fb_info) -{ - if (fb_info->class_flag & FB_SYSFS_FLAG_ATTR) { - device_remove_group(fb_info->dev, &fb_device_attr_group); - - fb_info->class_flag &= ~FB_SYSFS_FLAG_ATTR; - } -} +ATTRIBUTE_GROUPS(fb_device); int fb_device_create(struct fb_info *fb_info) { @@ -485,14 +457,13 @@ int fb_device_create(struct fb_info *fb_info) dev_t devt = MKDEV(FB_MAJOR, node); int ret; - fb_info->dev = device_create(fb_class, fb_info->device, devt, NULL, "fb%d", node); + fb_info->dev = device_create_with_groups(fb_class, fb_info->device, devt, fb_info, + fb_device_groups, "fb%d", node); if (IS_ERR(fb_info->dev)) { /* Not fatal */ ret = PTR_ERR(fb_info->dev); pr_warn("Unable to create device for framebuffer %d; error %d\n", node, ret); fb_info->dev = NULL; - } else { - fb_init_device(fb_info); } return 0; @@ -505,7 +476,6 @@ void fb_device_destroy(struct fb_info *fb_info) if (!fb_info->dev) return; - fb_cleanup_device(fb_info); device_destroy(fb_class, devt); fb_info->dev = NULL; } diff --git a/drivers/video/fbdev/ffb.c b/drivers/video/fbdev/ffb.c index 34b6abff9493..da531b4cb451 100644 --- a/drivers/video/fbdev/ffb.c +++ b/drivers/video/fbdev/ffb.c @@ -335,6 +335,9 @@ struct ffb_dac { }; #define FFB_DAC_UCTRL 0x1001 /* User Control */ +#define FFB_DAC_UCTRL_OVENAB 0x00000008 /* Overlay Enable */ +#define FFB_DAC_UCTRL_WMODE 0x00000030 /* Window Mode */ +#define FFB_DAC_UCTRL_WM_COMB 0x00000000 /* Window Mode = Combined */ #define FFB_DAC_UCTRL_MANREV 0x00000f00 /* 4-bit Manufacturing Revision */ #define FFB_DAC_UCTRL_MANREV_SHIFT 8 #define FFB_DAC_TGEN 0x6000 /* Timing Generator */ @@ -425,7 +428,7 @@ static void ffb_switch_from_graph(struct ffb_par *par) { struct ffb_fbc __iomem *fbc = par->fbc; struct ffb_dac __iomem *dac = par->dac; - unsigned long flags; + unsigned long flags, uctrl; spin_lock_irqsave(&par->lock, flags); FFBWait(par); @@ -450,6 +453,15 @@ static void ffb_switch_from_graph(struct ffb_par *par) upa_writel((FFB_DAC_CUR_CTRL_P0 | FFB_DAC_CUR_CTRL_P1), &dac->value2); + /* Disable overlay and window modes. */ + upa_writel(FFB_DAC_UCTRL, &dac->type); + uctrl = upa_readl(&dac->value); + uctrl &= ~FFB_DAC_UCTRL_WMODE; + uctrl |= FFB_DAC_UCTRL_WM_COMB; + uctrl &= ~FFB_DAC_UCTRL_OVENAB; + upa_writel(FFB_DAC_UCTRL, &dac->type); + upa_writel(uctrl, &dac->value); + spin_unlock_irqrestore(&par->lock, flags); } diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c deleted file mode 100644 index c99e2ea4b3de..000000000000 --- a/drivers/video/fbdev/hyperv_fb.c +++ /dev/null @@ -1,1388 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2012, Microsoft Corporation. - * - * Author: - * Haiyang Zhang <haiyangz@microsoft.com> - */ - -/* - * Hyper-V Synthetic Video Frame Buffer Driver - * - * This is the driver for the Hyper-V Synthetic Video, which supports - * screen resolution up to Full HD 1920x1080 with 32 bit color on Windows - * Server 2012, and 1600x1200 with 16 bit color on Windows Server 2008 R2 - * or earlier. - * - * It also solves the double mouse cursor issue of the emulated video mode. - * - * The default screen resolution is 1152x864, which may be changed by a - * kernel parameter: - * video=hyperv_fb:<width>x<height> - * For example: video=hyperv_fb:1280x1024 - * - * Portrait orientation is also supported: - * For example: video=hyperv_fb:864x1152 - * - * When a Windows 10 RS5+ host is used, the virtual machine screen - * resolution is obtained from the host. The "video=hyperv_fb" option is - * not needed, but still can be used to overwrite what the host specifies. - * The VM resolution on the host could be set by executing the powershell - * "set-vmvideo" command. For example - * set-vmvideo -vmname name -horizontalresolution:1920 \ - * -verticalresolution:1200 -resolutiontype single - * - * Gen 1 VMs also support direct using VM's physical memory for framebuffer. - * It could improve the efficiency and performance for framebuffer and VM. - * This requires to allocate contiguous physical memory from Linux kernel's - * CMA memory allocator. To enable this, supply a kernel parameter to give - * enough memory space to CMA allocator for framebuffer. For example: - * cma=130m - * This gives 130MB memory to CMA allocator that can be allocated to - * framebuffer. For reference, 8K resolution (7680x4320) takes about - * 127MB memory. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/aperture.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/vmalloc.h> -#include <linux/init.h> -#include <linux/completion.h> -#include <linux/fb.h> -#include <linux/pci.h> -#include <linux/panic_notifier.h> -#include <linux/efi.h> -#include <linux/console.h> - -#include <linux/hyperv.h> - -/* Hyper-V Synthetic Video Protocol definitions and structures */ -#define MAX_VMBUS_PKT_SIZE 0x4000 - -#define SYNTHVID_VERSION(major, minor) ((minor) << 16 | (major)) -/* Support for VERSION_WIN7 is removed. #define is retained for reference. */ -#define SYNTHVID_VERSION_WIN7 SYNTHVID_VERSION(3, 0) -#define SYNTHVID_VERSION_WIN8 SYNTHVID_VERSION(3, 2) -#define SYNTHVID_VERSION_WIN10 SYNTHVID_VERSION(3, 5) - -#define SYNTHVID_VER_GET_MAJOR(ver) (ver & 0x0000ffff) -#define SYNTHVID_VER_GET_MINOR(ver) ((ver & 0xffff0000) >> 16) - -#define SYNTHVID_DEPTH_WIN8 32 -#define SYNTHVID_FB_SIZE_WIN8 (8 * 1024 * 1024) - -enum pipe_msg_type { - PIPE_MSG_INVALID, - PIPE_MSG_DATA, - PIPE_MSG_MAX -}; - -struct pipe_msg_hdr { - u32 type; - u32 size; /* size of message after this field */ -} __packed; - - -enum synthvid_msg_type { - SYNTHVID_ERROR = 0, - SYNTHVID_VERSION_REQUEST = 1, - SYNTHVID_VERSION_RESPONSE = 2, - SYNTHVID_VRAM_LOCATION = 3, - SYNTHVID_VRAM_LOCATION_ACK = 4, - SYNTHVID_SITUATION_UPDATE = 5, - SYNTHVID_SITUATION_UPDATE_ACK = 6, - SYNTHVID_POINTER_POSITION = 7, - SYNTHVID_POINTER_SHAPE = 8, - SYNTHVID_FEATURE_CHANGE = 9, - SYNTHVID_DIRT = 10, - SYNTHVID_RESOLUTION_REQUEST = 13, - SYNTHVID_RESOLUTION_RESPONSE = 14, - - SYNTHVID_MAX = 15 -}; - -#define SYNTHVID_EDID_BLOCK_SIZE 128 -#define SYNTHVID_MAX_RESOLUTION_COUNT 64 - -struct hvd_screen_info { - u16 width; - u16 height; -} __packed; - -struct synthvid_msg_hdr { - u32 type; - u32 size; /* size of this header + payload after this field*/ -} __packed; - -struct synthvid_version_req { - u32 version; -} __packed; - -struct synthvid_version_resp { - u32 version; - u8 is_accepted; - u8 max_video_outputs; -} __packed; - -struct synthvid_supported_resolution_req { - u8 maximum_resolution_count; -} __packed; - -struct synthvid_supported_resolution_resp { - u8 edid_block[SYNTHVID_EDID_BLOCK_SIZE]; - u8 resolution_count; - u8 default_resolution_index; - u8 is_standard; - struct hvd_screen_info - supported_resolution[SYNTHVID_MAX_RESOLUTION_COUNT]; -} __packed; - -struct synthvid_vram_location { - u64 user_ctx; - u8 is_vram_gpa_specified; - u64 vram_gpa; -} __packed; - -struct synthvid_vram_location_ack { - u64 user_ctx; -} __packed; - -struct video_output_situation { - u8 active; - u32 vram_offset; - u8 depth_bits; - u32 width_pixels; - u32 height_pixels; - u32 pitch_bytes; -} __packed; - -struct synthvid_situation_update { - u64 user_ctx; - u8 video_output_count; - struct video_output_situation video_output[1]; -} __packed; - -struct synthvid_situation_update_ack { - u64 user_ctx; -} __packed; - -struct synthvid_pointer_position { - u8 is_visible; - u8 video_output; - s32 image_x; - s32 image_y; -} __packed; - - -#define CURSOR_MAX_X 96 -#define CURSOR_MAX_Y 96 -#define CURSOR_ARGB_PIXEL_SIZE 4 -#define CURSOR_MAX_SIZE (CURSOR_MAX_X * CURSOR_MAX_Y * CURSOR_ARGB_PIXEL_SIZE) -#define CURSOR_COMPLETE (-1) - -struct synthvid_pointer_shape { - u8 part_idx; - u8 is_argb; - u32 width; /* CURSOR_MAX_X at most */ - u32 height; /* CURSOR_MAX_Y at most */ - u32 hot_x; /* hotspot relative to upper-left of pointer image */ - u32 hot_y; - u8 data[4]; -} __packed; - -struct synthvid_feature_change { - u8 is_dirt_needed; - u8 is_ptr_pos_needed; - u8 is_ptr_shape_needed; - u8 is_situ_needed; -} __packed; - -struct rect { - s32 x1, y1; /* top left corner */ - s32 x2, y2; /* bottom right corner, exclusive */ -} __packed; - -struct synthvid_dirt { - u8 video_output; - u8 dirt_count; - struct rect rect[1]; -} __packed; - -struct synthvid_msg { - struct pipe_msg_hdr pipe_hdr; - struct synthvid_msg_hdr vid_hdr; - union { - struct synthvid_version_req ver_req; - struct synthvid_version_resp ver_resp; - struct synthvid_vram_location vram; - struct synthvid_vram_location_ack vram_ack; - struct synthvid_situation_update situ; - struct synthvid_situation_update_ack situ_ack; - struct synthvid_pointer_position ptr_pos; - struct synthvid_pointer_shape ptr_shape; - struct synthvid_feature_change feature_chg; - struct synthvid_dirt dirt; - struct synthvid_supported_resolution_req resolution_req; - struct synthvid_supported_resolution_resp resolution_resp; - }; -} __packed; - - -/* FB driver definitions and structures */ -#define HVFB_WIDTH 1152 /* default screen width */ -#define HVFB_HEIGHT 864 /* default screen height */ -#define HVFB_WIDTH_MIN 640 -#define HVFB_HEIGHT_MIN 480 - -#define RING_BUFSIZE (256 * 1024) -#define VSP_TIMEOUT (10 * HZ) -#define HVFB_UPDATE_DELAY (HZ / 20) -#define HVFB_ONDEMAND_THROTTLE (HZ / 20) - -struct hvfb_par { - struct fb_info *info; - struct resource *mem; - bool fb_ready; /* fb device is ready */ - struct completion wait; - u32 synthvid_version; - - struct delayed_work dwork; - bool update; - bool update_saved; /* The value of 'update' before hibernation */ - - u32 pseudo_palette[16]; - u8 init_buf[MAX_VMBUS_PKT_SIZE]; - u8 recv_buf[MAX_VMBUS_PKT_SIZE]; - - /* If true, the VSC notifies the VSP on every framebuffer change */ - bool synchronous_fb; - - /* If true, need to copy from deferred IO mem to framebuffer mem */ - bool need_docopy; - - struct notifier_block hvfb_panic_nb; - - /* Memory for deferred IO and frame buffer itself */ - unsigned char *dio_vp; - unsigned char *mmio_vp; - phys_addr_t mmio_pp; - - /* Dirty rectangle, protected by delayed_refresh_lock */ - int x1, y1, x2, y2; - bool delayed_refresh; - spinlock_t delayed_refresh_lock; -}; - -static uint screen_width = HVFB_WIDTH; -static uint screen_height = HVFB_HEIGHT; -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) -{ - static atomic64_t request_id = ATOMIC64_INIT(0); - int ret; - - msg->pipe_hdr.type = PIPE_MSG_DATA; - msg->pipe_hdr.size = msg->vid_hdr.size; - - ret = vmbus_sendpacket(hdev->channel, msg, - msg->vid_hdr.size + sizeof(struct pipe_msg_hdr), - atomic64_inc_return(&request_id), - VM_PKT_DATA_INBAND, 0); - - if (ret) - pr_err_ratelimited("Unable to send packet via vmbus; error %d\n", ret); - - return ret; -} - - -/* Send screen resolution info to host */ -static int synthvid_send_situ(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct synthvid_msg msg; - - if (!info) - return -ENODEV; - - memset(&msg, 0, sizeof(struct synthvid_msg)); - - msg.vid_hdr.type = SYNTHVID_SITUATION_UPDATE; - msg.vid_hdr.size = sizeof(struct synthvid_msg_hdr) + - sizeof(struct synthvid_situation_update); - msg.situ.user_ctx = 0; - msg.situ.video_output_count = 1; - msg.situ.video_output[0].active = 1; - msg.situ.video_output[0].vram_offset = 0; - msg.situ.video_output[0].depth_bits = info->var.bits_per_pixel; - msg.situ.video_output[0].width_pixels = info->var.xres; - msg.situ.video_output[0].height_pixels = info->var.yres; - msg.situ.video_output[0].pitch_bytes = info->fix.line_length; - - synthvid_send(hdev, &msg); - - return 0; -} - -/* Send mouse pointer info to host */ -static int synthvid_send_ptr(struct hv_device *hdev) -{ - struct synthvid_msg msg; - - memset(&msg, 0, sizeof(struct synthvid_msg)); - msg.vid_hdr.type = SYNTHVID_POINTER_POSITION; - msg.vid_hdr.size = sizeof(struct synthvid_msg_hdr) + - sizeof(struct synthvid_pointer_position); - msg.ptr_pos.is_visible = 1; - msg.ptr_pos.video_output = 0; - msg.ptr_pos.image_x = 0; - msg.ptr_pos.image_y = 0; - synthvid_send(hdev, &msg); - - memset(&msg, 0, sizeof(struct synthvid_msg)); - msg.vid_hdr.type = SYNTHVID_POINTER_SHAPE; - msg.vid_hdr.size = sizeof(struct synthvid_msg_hdr) + - sizeof(struct synthvid_pointer_shape); - msg.ptr_shape.part_idx = CURSOR_COMPLETE; - msg.ptr_shape.is_argb = 1; - msg.ptr_shape.width = 1; - msg.ptr_shape.height = 1; - msg.ptr_shape.hot_x = 0; - msg.ptr_shape.hot_y = 0; - msg.ptr_shape.data[0] = 0; - msg.ptr_shape.data[1] = 1; - msg.ptr_shape.data[2] = 1; - msg.ptr_shape.data[3] = 1; - synthvid_send(hdev, &msg); - - return 0; -} - -/* Send updated screen area (dirty rectangle) location to host */ -static int -synthvid_update(struct fb_info *info, int x1, int y1, int x2, int y2) -{ - struct hv_device *hdev = device_to_hv_device(info->device); - struct synthvid_msg msg; - - memset(&msg, 0, sizeof(struct synthvid_msg)); - if (x2 == INT_MAX) - x2 = info->var.xres; - if (y2 == INT_MAX) - y2 = info->var.yres; - - msg.vid_hdr.type = SYNTHVID_DIRT; - msg.vid_hdr.size = sizeof(struct synthvid_msg_hdr) + - sizeof(struct synthvid_dirt); - msg.dirt.video_output = 0; - msg.dirt.dirt_count = 1; - msg.dirt.rect[0].x1 = (x1 > x2) ? 0 : x1; - msg.dirt.rect[0].y1 = (y1 > y2) ? 0 : y1; - msg.dirt.rect[0].x2 = - (x2 < x1 || x2 > info->var.xres) ? info->var.xres : x2; - msg.dirt.rect[0].y2 = - (y2 < y1 || y2 > info->var.yres) ? info->var.yres : y2; - - synthvid_send(hdev, &msg); - - return 0; -} - -static void hvfb_docopy(struct hvfb_par *par, - unsigned long offset, - unsigned long size) -{ - if (!par || !par->mmio_vp || !par->dio_vp || !par->fb_ready || - size == 0 || offset >= dio_fb_size) - return; - - if (offset + size > dio_fb_size) - size = dio_fb_size - offset; - - memcpy(par->mmio_vp + offset, par->dio_vp + offset, size); -} - -/* Deferred IO callback */ -static void synthvid_deferred_io(struct fb_info *p, struct list_head *pagereflist) -{ - struct hvfb_par *par = p->par; - struct fb_deferred_io_pageref *pageref; - unsigned long start, end; - int y1, y2, miny, maxy; - - miny = INT_MAX; - maxy = 0; - - /* - * Merge dirty pages. It is possible that last page cross - * over the end of frame buffer row yres. This is taken care of - * in synthvid_update function by clamping the y2 - * value to yres. - */ - list_for_each_entry(pageref, pagereflist, list) { - start = pageref->offset; - end = start + PAGE_SIZE - 1; - y1 = start / p->fix.line_length; - y2 = end / p->fix.line_length; - miny = min_t(int, miny, y1); - maxy = max_t(int, maxy, y2); - - /* Copy from dio space to mmio address */ - if (par->fb_ready && par->need_docopy) - hvfb_docopy(par, start, PAGE_SIZE); - } - - if (par->fb_ready && par->update) - synthvid_update(p, 0, miny, p->var.xres, maxy + 1); -} - -static struct fb_deferred_io synthvid_defio = { - .delay = HZ / 20, - .deferred_io = synthvid_deferred_io, -}; - -/* - * Actions on received messages from host: - * Complete the wait event. - * Or, reply with screen and cursor info. - */ -static void synthvid_recv_sub(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par; - struct synthvid_msg *msg; - - if (!info) - return; - - par = info->par; - msg = (struct synthvid_msg *)par->recv_buf; - - /* Complete the wait event */ - if (msg->vid_hdr.type == SYNTHVID_VERSION_RESPONSE || - msg->vid_hdr.type == SYNTHVID_RESOLUTION_RESPONSE || - msg->vid_hdr.type == SYNTHVID_VRAM_LOCATION_ACK) { - memcpy(par->init_buf, msg, MAX_VMBUS_PKT_SIZE); - complete(&par->wait); - return; - } - - /* Reply with screen and cursor info */ - if (msg->vid_hdr.type == SYNTHVID_FEATURE_CHANGE) { - if (par->fb_ready) { - synthvid_send_ptr(hdev); - synthvid_send_situ(hdev); - } - - par->update = msg->feature_chg.is_dirt_needed; - if (par->update) - schedule_delayed_work(&par->dwork, HVFB_UPDATE_DELAY); - } -} - -/* Receive callback for messages from the host */ -static void synthvid_receive(void *ctx) -{ - struct hv_device *hdev = ctx; - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par; - struct synthvid_msg *recv_buf; - u32 bytes_recvd; - u64 req_id; - int ret; - - if (!info) - return; - - par = info->par; - recv_buf = (struct synthvid_msg *)par->recv_buf; - - do { - ret = vmbus_recvpacket(hdev->channel, recv_buf, - MAX_VMBUS_PKT_SIZE, - &bytes_recvd, &req_id); - if (bytes_recvd > 0 && - recv_buf->pipe_hdr.type == PIPE_MSG_DATA) - synthvid_recv_sub(hdev); - } while (bytes_recvd > 0 && ret == 0); -} - -/* Check if the ver1 version is equal or greater than ver2 */ -static inline bool synthvid_ver_ge(u32 ver1, u32 ver2) -{ - if (SYNTHVID_VER_GET_MAJOR(ver1) > SYNTHVID_VER_GET_MAJOR(ver2) || - (SYNTHVID_VER_GET_MAJOR(ver1) == SYNTHVID_VER_GET_MAJOR(ver2) && - SYNTHVID_VER_GET_MINOR(ver1) >= SYNTHVID_VER_GET_MINOR(ver2))) - return true; - - return false; -} - -/* Check synthetic video protocol version with the host */ -static int synthvid_negotiate_ver(struct hv_device *hdev, u32 ver) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par = info->par; - struct synthvid_msg *msg = (struct synthvid_msg *)par->init_buf; - int ret = 0; - unsigned long t; - - memset(msg, 0, sizeof(struct synthvid_msg)); - msg->vid_hdr.type = SYNTHVID_VERSION_REQUEST; - msg->vid_hdr.size = sizeof(struct synthvid_msg_hdr) + - sizeof(struct synthvid_version_req); - msg->ver_req.version = ver; - synthvid_send(hdev, msg); - - t = wait_for_completion_timeout(&par->wait, VSP_TIMEOUT); - if (!t) { - pr_err("Time out on waiting version response\n"); - ret = -ETIMEDOUT; - goto out; - } - if (!msg->ver_resp.is_accepted) { - ret = -ENODEV; - goto out; - } - - par->synthvid_version = ver; - pr_info("Synthvid Version major %d, minor %d\n", - SYNTHVID_VER_GET_MAJOR(ver), SYNTHVID_VER_GET_MINOR(ver)); - -out: - return ret; -} - -/* Get current resolution from the host */ -static int synthvid_get_supported_resolution(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par = info->par; - struct synthvid_msg *msg = (struct synthvid_msg *)par->init_buf; - int ret = 0; - unsigned long t; - u8 index; - - memset(msg, 0, sizeof(struct synthvid_msg)); - msg->vid_hdr.type = SYNTHVID_RESOLUTION_REQUEST; - msg->vid_hdr.size = sizeof(struct synthvid_msg_hdr) + - sizeof(struct synthvid_supported_resolution_req); - - msg->resolution_req.maximum_resolution_count = - SYNTHVID_MAX_RESOLUTION_COUNT; - synthvid_send(hdev, msg); - - t = wait_for_completion_timeout(&par->wait, VSP_TIMEOUT); - if (!t) { - pr_err("Time out on waiting resolution response\n"); - ret = -ETIMEDOUT; - goto out; - } - - if (msg->resolution_resp.resolution_count == 0) { - pr_err("No supported resolutions\n"); - ret = -ENODEV; - goto out; - } - - index = msg->resolution_resp.default_resolution_index; - if (index >= msg->resolution_resp.resolution_count) { - pr_err("Invalid resolution index: %d\n", index); - ret = -ENODEV; - goto out; - } - - screen_width = - msg->resolution_resp.supported_resolution[index].width; - screen_height = - msg->resolution_resp.supported_resolution[index].height; - -out: - return ret; -} - -/* Connect to VSP (Virtual Service Provider) on host */ -static int synthvid_connect_vsp(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par = info->par; - int ret; - - ret = vmbus_open(hdev->channel, RING_BUFSIZE, RING_BUFSIZE, - NULL, 0, synthvid_receive, hdev); - if (ret) { - pr_err("Unable to open vmbus channel\n"); - return ret; - } - - /* Negotiate the protocol version with host */ - switch (vmbus_proto_version) { - case VERSION_WIN10: - case VERSION_WIN10_V5: - ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN10); - if (!ret) - break; - fallthrough; - case VERSION_WIN8: - case VERSION_WIN8_1: - ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN8); - break; - default: - ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN10); - break; - } - - if (ret) { - pr_err("Synthetic video device version not accepted\n"); - goto error; - } - - screen_depth = SYNTHVID_DEPTH_WIN8; - if (synthvid_ver_ge(par->synthvid_version, SYNTHVID_VERSION_WIN10)) { - ret = synthvid_get_supported_resolution(hdev); - if (ret) - pr_info("Failed to get supported resolution from host, use default\n"); - } - - screen_fb_size = hdev->channel->offermsg.offer. - mmio_megabytes * 1024 * 1024; - - return 0; - -error: - vmbus_close(hdev->channel); - return ret; -} - -/* Send VRAM and Situation messages to the host */ -static int synthvid_send_config(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par = info->par; - struct synthvid_msg *msg = (struct synthvid_msg *)par->init_buf; - int ret = 0; - unsigned long t; - - /* Send VRAM location */ - memset(msg, 0, sizeof(struct synthvid_msg)); - msg->vid_hdr.type = SYNTHVID_VRAM_LOCATION; - msg->vid_hdr.size = sizeof(struct synthvid_msg_hdr) + - sizeof(struct synthvid_vram_location); - msg->vram.user_ctx = msg->vram.vram_gpa = par->mmio_pp; - msg->vram.is_vram_gpa_specified = 1; - synthvid_send(hdev, msg); - - t = wait_for_completion_timeout(&par->wait, VSP_TIMEOUT); - if (!t) { - pr_err("Time out on waiting vram location ack\n"); - ret = -ETIMEDOUT; - goto out; - } - if (msg->vram_ack.user_ctx != par->mmio_pp) { - pr_err("Unable to set VRAM location\n"); - ret = -ENODEV; - goto out; - } - - /* Send pointer and situation update */ - synthvid_send_ptr(hdev); - synthvid_send_situ(hdev); - -out: - return ret; -} - - -/* - * Delayed work callback: - * It is scheduled to call whenever update request is received and it has - * not been called in last HVFB_ONDEMAND_THROTTLE time interval. - */ -static void hvfb_update_work(struct work_struct *w) -{ - struct hvfb_par *par = container_of(w, struct hvfb_par, dwork.work); - struct fb_info *info = par->info; - unsigned long flags; - int x1, x2, y1, y2; - int j; - - spin_lock_irqsave(&par->delayed_refresh_lock, flags); - /* Reset the request flag */ - par->delayed_refresh = false; - - /* Store the dirty rectangle to local variables */ - x1 = par->x1; - x2 = par->x2; - y1 = par->y1; - y2 = par->y2; - - /* Clear dirty rectangle */ - par->x1 = par->y1 = INT_MAX; - par->x2 = par->y2 = 0; - - spin_unlock_irqrestore(&par->delayed_refresh_lock, flags); - - if (x1 > info->var.xres || x2 > info->var.xres || - y1 > info->var.yres || y2 > info->var.yres || x2 <= x1) - return; - - /* Copy the dirty rectangle to frame buffer memory */ - if (par->need_docopy) - for (j = y1; j < y2; j++) - hvfb_docopy(par, - j * info->fix.line_length + - (x1 * screen_depth / 8), - (x2 - x1) * screen_depth / 8); - - /* Refresh */ - if (par->fb_ready && par->update) - synthvid_update(info, x1, y1, x2, y2); -} - -/* - * Control the on-demand refresh frequency. It schedules a delayed - * screen update if it has not yet. - */ -static void hvfb_ondemand_refresh_throttle(struct hvfb_par *par, - int x1, int y1, int w, int h) -{ - unsigned long flags; - int x2 = x1 + w; - int y2 = y1 + h; - - spin_lock_irqsave(&par->delayed_refresh_lock, flags); - - /* Merge dirty rectangle */ - par->x1 = min_t(int, par->x1, x1); - par->y1 = min_t(int, par->y1, y1); - par->x2 = max_t(int, par->x2, x2); - par->y2 = max_t(int, par->y2, y2); - - /* Schedule a delayed screen update if not yet */ - if (par->delayed_refresh == false) { - schedule_delayed_work(&par->dwork, - HVFB_ONDEMAND_THROTTLE); - par->delayed_refresh = true; - } - - spin_unlock_irqrestore(&par->delayed_refresh_lock, flags); -} - -static int hvfb_on_panic(struct notifier_block *nb, - unsigned long e, void *p) -{ - struct hv_device *hdev; - struct hvfb_par *par; - struct fb_info *info; - - par = container_of(nb, struct hvfb_par, hvfb_panic_nb); - info = par->info; - hdev = device_to_hv_device(info->device); - - if (hv_ringbuffer_spinlock_busy(hdev->channel)) - return NOTIFY_DONE; - - par->synchronous_fb = true; - if (par->need_docopy) - hvfb_docopy(par, 0, dio_fb_size); - synthvid_update(info, 0, 0, INT_MAX, INT_MAX); - - return NOTIFY_DONE; -} - -/* Framebuffer operation handlers */ - -static int hvfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) -{ - if (var->xres < HVFB_WIDTH_MIN || var->yres < HVFB_HEIGHT_MIN || - var->xres > screen_width || var->yres > screen_height || - var->bits_per_pixel != screen_depth) - return -EINVAL; - - var->xres_virtual = var->xres; - var->yres_virtual = var->yres; - - return 0; -} - -static int hvfb_set_par(struct fb_info *info) -{ - struct hv_device *hdev = device_to_hv_device(info->device); - - return synthvid_send_situ(hdev); -} - - -static inline u32 chan_to_field(u32 chan, struct fb_bitfield *bf) -{ - return ((chan & 0xffff) >> (16 - bf->length)) << bf->offset; -} - -static int hvfb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, struct fb_info *info) -{ - u32 *pal = info->pseudo_palette; - - if (regno > 15) - return -EINVAL; - - pal[regno] = chan_to_field(red, &info->var.red) - | chan_to_field(green, &info->var.green) - | chan_to_field(blue, &info->var.blue) - | chan_to_field(transp, &info->var.transp); - - return 0; -} - -static int hvfb_blank(int blank, struct fb_info *info) -{ - return 1; /* get fb_blank to set the colormap to all black */ -} - -static void hvfb_ops_damage_range(struct fb_info *info, off_t off, size_t len) -{ - /* TODO: implement damage handling */ -} - -static void hvfb_ops_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u32 height) -{ - struct hvfb_par *par = info->par; - - if (par->synchronous_fb) - synthvid_update(info, 0, 0, INT_MAX, INT_MAX); - else - hvfb_ondemand_refresh_throttle(par, x, y, width, height); -} - -/* - * 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. - */ -FB_GEN_DEFAULT_DEFERRED_IOMEM_OPS(hvfb_ops, - hvfb_ops_damage_range, - hvfb_ops_damage_area) - -static const struct fb_ops hvfb_ops = { - .owner = THIS_MODULE, - FB_DEFAULT_DEFERRED_OPS(hvfb_ops), - .fb_check_var = hvfb_check_var, - .fb_set_par = hvfb_set_par, - .fb_setcolreg = hvfb_setcolreg, - .fb_blank = hvfb_blank, - .fb_destroy = hvfb_destroy, -}; - -/* Get options from kernel paramenter "video=" */ -static void hvfb_get_option(struct fb_info *info) -{ - struct hvfb_par *par = info->par; - char *opt = NULL, *p; - uint x = 0, y = 0; - - if (fb_get_options(KBUILD_MODNAME, &opt) || !opt || !*opt) - return; - - p = strsep(&opt, "x"); - if (!*p || kstrtouint(p, 0, &x) || - !opt || !*opt || kstrtouint(opt, 0, &y)) { - pr_err("Screen option is invalid: skipped\n"); - return; - } - - if (x < HVFB_WIDTH_MIN || y < HVFB_HEIGHT_MIN || - (synthvid_ver_ge(par->synthvid_version, SYNTHVID_VERSION_WIN10) && - (x * y * screen_depth / 8 > screen_fb_size)) || - (par->synthvid_version == SYNTHVID_VERSION_WIN8 && - x * y * screen_depth / 8 > SYNTHVID_FB_SIZE_WIN8)) { - pr_err("Screen resolution option is out of range: skipped\n"); - return; - } - - screen_width = x; - screen_height = y; - return; -} - -/* - * Allocate enough contiguous physical memory. - * Return physical address if succeeded or -1 if failed. - */ -static phys_addr_t hvfb_get_phymem(struct hv_device *hdev, - unsigned int request_size) -{ - struct page *page = NULL; - dma_addr_t dma_handle; - void *vmem; - phys_addr_t paddr = 0; - unsigned int order = get_order(request_size); - - if (request_size == 0) - return -1; - - if (order <= MAX_PAGE_ORDER) { - /* Call alloc_pages if the size is less than 2^MAX_PAGE_ORDER */ - page = alloc_pages(GFP_KERNEL | __GFP_ZERO, order); - if (!page) - return -1; - - paddr = (page_to_pfn(page) << PAGE_SHIFT); - } else { - /* Allocate from CMA */ - hdev->device.coherent_dma_mask = DMA_BIT_MASK(64); - - vmem = dma_alloc_coherent(&hdev->device, - round_up(request_size, PAGE_SIZE), - &dma_handle, - GFP_KERNEL | __GFP_NOWARN); - - if (!vmem) - return -1; - - paddr = virt_to_phys(vmem); - } - - return paddr; -} - -/* Release contiguous physical memory */ -static void hvfb_release_phymem(struct device *device, - phys_addr_t paddr, unsigned int size) -{ - unsigned int order = get_order(size); - - if (order <= MAX_PAGE_ORDER) - __free_pages(pfn_to_page(paddr >> PAGE_SHIFT), order); - else - dma_free_coherent(device, - round_up(size, PAGE_SIZE), - phys_to_virt(paddr), - paddr); -} - - -/* Get framebuffer memory from Hyper-V video pci space */ -static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) -{ - struct hvfb_par *par = info->par; - struct pci_dev *pdev = NULL; - void __iomem *fb_virt; - int gen2vm = efi_enabled(EFI_BOOT); - resource_size_t base = 0; - resource_size_t size = 0; - phys_addr_t paddr; - int ret; - - if (!gen2vm) { - pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT, - PCI_DEVICE_ID_HYPERV_VIDEO, NULL); - if (!pdev) { - pr_err("Unable to find PCI Hyper-V video\n"); - return -ENODEV; - } - - 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 - * from VM. If we succeed, deferred IO happens directly - * on this allocated framebuffer memory, avoiding extra - * memory copy. - */ - paddr = hvfb_get_phymem(hdev, screen_fb_size); - if (paddr != (phys_addr_t) -1) { - par->mmio_pp = paddr; - par->mmio_vp = par->dio_vp = __va(paddr); - - info->fix.smem_start = paddr; - info->fix.smem_len = screen_fb_size; - info->screen_base = par->mmio_vp; - info->screen_size = screen_fb_size; - - par->need_docopy = false; - 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 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; - - ret = vmbus_allocate_mmio(&par->mem, hdev, 0, -1, - screen_fb_size, 0x100000, true); - if (ret != 0) { - pr_err("Unable to allocate framebuffer memory\n"); - goto err1; - } - - /* - * Map the VRAM cacheable for performance. This is also required for - * VM Connect to display properly for ARM64 Linux VM, as the host also - * maps the VRAM cacheable. - */ - fb_virt = ioremap_cache(par->mem->start, screen_fb_size); - if (!fb_virt) - goto err2; - - /* Allocate memory for deferred IO */ - par->dio_vp = vzalloc(round_up(dio_fb_size, PAGE_SIZE)); - if (par->dio_vp == NULL) - goto err3; - - /* Physical address of FB device */ - par->mmio_pp = par->mem->start; - /* Virtual address of FB device */ - par->mmio_vp = (unsigned char *) fb_virt; - - info->fix.smem_start = par->mem->start; - info->fix.smem_len = dio_fb_size; - info->screen_base = par->dio_vp; - info->screen_size = dio_fb_size; - -getmem_done: - if (!gen2vm) - pci_dev_put(pdev); - - return 0; - -err3: - iounmap(fb_virt); -err2: - vmbus_free_mmio(par->mem->start, screen_fb_size); - par->mem = NULL; -err1: - if (!gen2vm) - pci_dev_put(pdev); - - return -ENOMEM; -} - -/* Release the framebuffer */ -static void hvfb_putmem(struct fb_info *info) -{ - struct hvfb_par *par = info->par; - - if (par->need_docopy) { - vfree(par->dio_vp); - iounmap(par->mmio_vp); - vmbus_free_mmio(par->mem->start, screen_fb_size); - } else { - hvfb_release_phymem(info->device, info->fix.smem_start, - screen_fb_size); - } - - par->mem = NULL; -} - - -static int hvfb_probe(struct hv_device *hdev, - const struct hv_vmbus_device_id *dev_id) -{ - struct fb_info *info; - struct hvfb_par *par; - int ret; - - info = framebuffer_alloc(sizeof(struct hvfb_par), &hdev->device); - if (!info) - return -ENOMEM; - - par = info->par; - par->info = info; - par->fb_ready = false; - par->need_docopy = true; - init_completion(&par->wait); - INIT_DELAYED_WORK(&par->dwork, hvfb_update_work); - - par->delayed_refresh = false; - spin_lock_init(&par->delayed_refresh_lock); - par->x1 = par->y1 = INT_MAX; - par->x2 = par->y2 = 0; - - /* Connect to VSP */ - hv_set_drvdata(hdev, info); - ret = synthvid_connect_vsp(hdev); - if (ret) { - pr_err("Unable to connect to VSP\n"); - goto error1; - } - - hvfb_get_option(info); - pr_info("Screen resolution: %dx%d, Color depth: %d, Frame buffer size: %d\n", - screen_width, screen_height, screen_depth, screen_fb_size); - - ret = hvfb_getmem(hdev, info); - if (ret) { - pr_err("No memory for framebuffer\n"); - goto error2; - } - - /* Set up fb_info */ - info->var.xres_virtual = info->var.xres = screen_width; - info->var.yres_virtual = info->var.yres = screen_height; - info->var.bits_per_pixel = screen_depth; - - if (info->var.bits_per_pixel == 16) { - info->var.red = (struct fb_bitfield){11, 5, 0}; - info->var.green = (struct fb_bitfield){5, 6, 0}; - info->var.blue = (struct fb_bitfield){0, 5, 0}; - info->var.transp = (struct fb_bitfield){0, 0, 0}; - } else { - info->var.red = (struct fb_bitfield){16, 8, 0}; - info->var.green = (struct fb_bitfield){8, 8, 0}; - info->var.blue = (struct fb_bitfield){0, 8, 0}; - info->var.transp = (struct fb_bitfield){24, 8, 0}; - } - - info->var.activate = FB_ACTIVATE_NOW; - info->var.height = -1; - info->var.width = -1; - info->var.vmode = FB_VMODE_NONINTERLACED; - - strcpy(info->fix.id, KBUILD_MODNAME); - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_TRUECOLOR; - info->fix.line_length = screen_width * screen_depth / 8; - info->fix.accel = FB_ACCEL_NONE; - - info->fbops = &hvfb_ops; - info->pseudo_palette = par->pseudo_palette; - - /* Initialize deferred IO */ - info->fbdefio = &synthvid_defio; - fb_deferred_io_init(info); - - /* Send config to host */ - ret = synthvid_send_config(hdev); - if (ret) - goto error; - - ret = devm_register_framebuffer(&hdev->device, info); - if (ret) { - pr_err("Unable to register framebuffer\n"); - goto error; - } - - par->fb_ready = true; - - par->synchronous_fb = false; - - /* - * We need to be sure this panic notifier runs _before_ the - * vmbus disconnect, so order it by priority. It must execute - * before the function hv_panic_vmbus_unload() [drivers/hv/vmbus_drv.c], - * which is almost at the end of list, with priority = INT_MIN + 1. - */ - par->hvfb_panic_nb.notifier_call = hvfb_on_panic; - par->hvfb_panic_nb.priority = INT_MIN + 10; - atomic_notifier_chain_register(&panic_notifier_list, - &par->hvfb_panic_nb); - - return 0; - -error: - fb_deferred_io_cleanup(info); - hvfb_putmem(info); -error2: - vmbus_close(hdev->channel); -error1: - cancel_delayed_work_sync(&par->dwork); - hv_set_drvdata(hdev, NULL); - framebuffer_release(info); - return ret; -} - -static void hvfb_remove(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par = info->par; - - atomic_notifier_chain_unregister(&panic_notifier_list, - &par->hvfb_panic_nb); - - par->update = false; - par->fb_ready = false; - - fb_deferred_io_cleanup(info); - - cancel_delayed_work_sync(&par->dwork); - - vmbus_close(hdev->channel); - hv_set_drvdata(hdev, NULL); -} - -static int hvfb_suspend(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par = info->par; - - console_lock(); - - /* 1 means do suspend */ - fb_set_suspend(info, 1); - - cancel_delayed_work_sync(&par->dwork); - cancel_delayed_work_sync(&info->deferred_work); - - par->update_saved = par->update; - par->update = false; - par->fb_ready = false; - - vmbus_close(hdev->channel); - - console_unlock(); - - return 0; -} - -static int hvfb_resume(struct hv_device *hdev) -{ - struct fb_info *info = hv_get_drvdata(hdev); - struct hvfb_par *par = info->par; - int ret; - - console_lock(); - - ret = synthvid_connect_vsp(hdev); - if (ret != 0) - goto out; - - ret = synthvid_send_config(hdev); - if (ret != 0) { - vmbus_close(hdev->channel); - goto out; - } - - par->fb_ready = true; - par->update = par->update_saved; - - schedule_delayed_work(&info->deferred_work, info->fbdefio->delay); - schedule_delayed_work(&par->dwork, HVFB_UPDATE_DELAY); - - /* 0 means do resume */ - fb_set_suspend(info, 0); - -out: - console_unlock(); - - return ret; -} - - -static const struct pci_device_id pci_stub_id_table[] = { - { - .vendor = PCI_VENDOR_ID_MICROSOFT, - .device = PCI_DEVICE_ID_HYPERV_VIDEO, - }, - { /* end of list */ } -}; - -static const struct hv_vmbus_device_id id_table[] = { - /* Synthetic Video Device GUID */ - {HV_SYNTHVID_GUID}, - {} -}; - -MODULE_DEVICE_TABLE(pci, pci_stub_id_table); -MODULE_DEVICE_TABLE(vmbus, id_table); - -static struct hv_driver hvfb_drv = { - .name = KBUILD_MODNAME, - .id_table = id_table, - .probe = hvfb_probe, - .remove = hvfb_remove, - .suspend = hvfb_suspend, - .resume = hvfb_resume, - .driver = { - .probe_type = PROBE_PREFER_ASYNCHRONOUS, - }, -}; - -static int hvfb_pci_stub_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - return 0; -} - -static void hvfb_pci_stub_remove(struct pci_dev *pdev) -{ -} - -static struct pci_driver hvfb_pci_stub_driver = { - .name = KBUILD_MODNAME, - .id_table = pci_stub_id_table, - .probe = hvfb_pci_stub_probe, - .remove = hvfb_pci_stub_remove, - .driver = { - .probe_type = PROBE_PREFER_ASYNCHRONOUS, - } -}; - -static int __init hvfb_drv_init(void) -{ - int ret; - - pr_warn("Deprecated: use Hyper-V DRM driver instead\n"); - - if (fb_modesetting_disabled("hyper_fb")) - return -ENODEV; - - ret = vmbus_driver_register(&hvfb_drv); - if (ret != 0) - return ret; - - ret = pci_register_driver(&hvfb_pci_stub_driver); - if (ret != 0) { - vmbus_driver_unregister(&hvfb_drv); - return ret; - } - - return 0; -} - -static void __exit hvfb_drv_exit(void) -{ - pci_unregister_driver(&hvfb_pci_stub_driver); - vmbus_driver_unregister(&hvfb_drv); -} - -module_init(hvfb_drv_init); -module_exit(hvfb_drv_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Microsoft Hyper-V Synthetic Video Frame Buffer Driver"); diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c index 106d21e74738..a8740213e891 100644 --- a/drivers/video/fbdev/omap/omapfb_main.c +++ b/drivers/video/fbdev/omap/omapfb_main.c @@ -846,12 +846,10 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) * be reenabled unless its size is > 0. */ if (old_size != size && size) { - if (size) { - memcpy(new_var, &fbi->var, sizeof(*new_var)); - r = set_fb_var(fbi, new_var); - if (r < 0) - goto out; - } + memcpy(new_var, &fbi->var, sizeof(*new_var)); + r = set_fb_var(fbi, new_var); + if (r < 0) + goto out; } if (fbdev->ctrl->sync) diff --git a/drivers/video/fbdev/omap2/omapfb/Kconfig b/drivers/video/fbdev/omap2/omapfb/Kconfig index f4cdf999a080..2d20e79adefc 100644 --- a/drivers/video/fbdev/omap2/omapfb/Kconfig +++ b/drivers/video/fbdev/omap2/omapfb/Kconfig @@ -5,7 +5,6 @@ config OMAP2_VRFB menuconfig FB_OMAP2 tristate "OMAP2+ frame buffer support" depends on FB - depends on FB_DEVICE depends on DRM_OMAP = n depends on GPIOLIB select FB_OMAP2_DSS @@ -13,6 +12,8 @@ menuconfig FB_OMAP2 select FB_IOMEM_HELPERS help Frame buffer driver for OMAP2+ based boards. + FB_DEVICE is not required, but if enabled, provides sysfs interface + for framebuffer configuration and debugging. if FB_OMAP2 diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c b/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c index 831b2c2fbdf9..38a635d38d58 100644 --- a/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c +++ b/drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c @@ -558,10 +558,15 @@ int omapfb_create_sysfs(struct omapfb2_device *fbdev) DBG("create sysfs for fbs\n"); for (i = 0; i < fbdev->num_fbs; i++) { + struct device *dev; int t; + + dev = dev_of_fbinfo(fbdev->fbs[i]); + if (!dev) + continue; + for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) { - r = device_create_file(fbdev->fbs[i]->dev, - &omapfb_attrs[t]); + r = device_create_file(dev, &omapfb_attrs[t]); if (r) { dev_err(fbdev->dev, "failed to create sysfs " @@ -580,9 +585,14 @@ void omapfb_remove_sysfs(struct omapfb2_device *fbdev) DBG("remove sysfs for fbs\n"); for (i = 0; i < fbdev->num_fbs; i++) { + struct device *dev; + + dev = dev_of_fbinfo(fbdev->fbs[i]); + if (!dev) + continue; + for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) - device_remove_file(fbdev->fbs[i]->dev, - &omapfb_attrs[t]); + device_remove_file(dev, &omapfb_attrs[t]); } } diff --git a/drivers/video/fbdev/riva/riva_hw.c b/drivers/video/fbdev/riva/riva_hw.c index 8b829b720064..f292079566cf 100644 --- a/drivers/video/fbdev/riva/riva_hw.c +++ b/drivers/video/fbdev/riva/riva_hw.c @@ -436,6 +436,9 @@ static char nv3_arb(nv3_fifo_info * res_info, nv3_sim_state * state, nv3_arb_in vmisses = 2; eburst_size = state->memory_width * 1; mburst_size = 32; + if (!state->mclk_khz) + return (0); + gns = 1000000 * (gmisses*state->mem_page_miss + state->mem_latency)/state->mclk_khz; ainfo->by_gfacc = gns*ainfo->gdrain_rate/1000000; ainfo->wcmocc = 0; diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c index dd950e4ab5ce..5f3a0cd27db3 100644 --- a/drivers/video/fbdev/sh_mobile_lcdcfb.c +++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c @@ -1343,14 +1343,17 @@ static DEVICE_ATTR_RW(overlay_mode); static DEVICE_ATTR_RW(overlay_position); static DEVICE_ATTR_RW(overlay_rop3); -static struct attribute *overlay_sysfs_attrs[] = { +static struct attribute *overlay_sysfs_attrs[] __maybe_unused = { &dev_attr_overlay_alpha.attr, &dev_attr_overlay_mode.attr, &dev_attr_overlay_position.attr, &dev_attr_overlay_rop3.attr, NULL, }; + +#ifdef CONFIG_FB_DEVICE ATTRIBUTE_GROUPS(overlay_sysfs); +#endif static const struct fb_fix_screeninfo sh_mobile_lcdc_overlay_fix = { .id = "SH Mobile LCDC", diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c index 5f0dd01fd834..891ce7b76d63 100644 --- a/drivers/video/fbdev/smscufx.c +++ b/drivers/video/fbdev/smscufx.c @@ -932,7 +932,6 @@ static int ufx_ops_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { struct ufx_data *dev = info->par; - struct dloarea *area = NULL; if (!atomic_read(&dev->usb_active)) return 0; @@ -947,6 +946,10 @@ static int ufx_ops_ioctl(struct fb_info *info, unsigned int cmd, /* TODO: Help propose a standard fb.h ioctl to report mmap damage */ if (cmd == UFX_IOCTL_REPORT_DAMAGE) { + struct dloarea *area __free(kfree) = kmalloc(sizeof(*area), GFP_KERNEL); + if (!area) + return -ENOMEM; + /* If we have a damage-aware client, turn fb_defio "off" * To avoid perf imact of unnecessary page fault handling. * Done by resetting the delay for this fb_info to a very @@ -956,7 +959,8 @@ static int ufx_ops_ioctl(struct fb_info *info, unsigned int cmd, if (info->fbdefio) info->fbdefio->delay = UFX_DEFIO_WRITE_DISABLE; - area = (struct dloarea *)arg; + if (copy_from_user(area, (u8 __user *)arg, sizeof(*area))) + return -EFAULT; if (area->x < 0) area->x = 0; diff --git a/drivers/video/fbdev/vt8500lcdfb.c b/drivers/video/fbdev/vt8500lcdfb.c index b08a6fdc53fd..85c7a99a7d64 100644 --- a/drivers/video/fbdev/vt8500lcdfb.c +++ b/drivers/video/fbdev/vt8500lcdfb.c @@ -369,7 +369,7 @@ static int vt8500lcd_probe(struct platform_device *pdev) if (fbi->palette_cpu == NULL) { dev_err(&pdev->dev, "Failed to allocate palette buffer\n"); ret = -ENOMEM; - goto failed_free_io; + goto failed_free_mem_virt; } irq = platform_get_irq(pdev, 0); @@ -432,6 +432,9 @@ failed_free_irq: failed_free_palette: dma_free_coherent(&pdev->dev, fbi->palette_size, fbi->palette_cpu, fbi->palette_phys); +failed_free_mem_virt: + dma_free_coherent(&pdev->dev, fbi->fb.fix.smem_len, + fbi->fb.screen_buffer, fbi->fb.fix.smem_start); failed_free_io: iounmap(fbi->regbase); failed_free_res: diff --git a/drivers/video/logo/Kconfig b/drivers/video/logo/Kconfig index ce6bb753522d..cda15b95891e 100644 --- a/drivers/video/logo/Kconfig +++ b/drivers/video/logo/Kconfig @@ -20,54 +20,60 @@ config FB_LOGO_EXTRA config LOGO_LINUX_MONO bool "Standard black and white Linux logo" - default y -config LOGO_LINUX_VGA16 - bool "Standard 16-color Linux logo" - default y +config LOGO_LINUX_MONO_FILE + string "Monochrome logo .pbm file" + depends on LOGO_LINUX_MONO + default "drivers/video/logo/logo_superh_mono.pbm" if SUPERH + default "drivers/video/logo/logo_linux_mono.pbm" + help + Takes a path to a monochromatic logo in the portable pixmap file + format (.pbm). This defaults to the Tux penguin. -config LOGO_LINUX_CLUT224 - bool "Standard 224-color Linux logo" - default y + For example, the below ImageMagick command can be used to reduce + an image to black and white and convert it into a pbm file: -config LOGO_DEC_CLUT224 - bool "224-color Digital Equipment Corporation Linux logo" - depends on MACH_DECSTATION || ALPHA - default y + magick source_image -compress none destination.pbm -config LOGO_MAC_CLUT224 - bool "224-color Macintosh Linux logo" - depends on MAC - default y +config LOGO_LINUX_VGA16 + bool "Standard 16-color Linux logo" -config LOGO_PARISC_CLUT224 - bool "224-color PA-RISC Linux logo" - depends on PARISC - default y +config LOGO_LINUX_VGA16_FILE + string "16-color logo .ppm file" + depends on LOGO_LINUX_VGA16 + default "drivers/video/logo/logo_superh_vga16.ppm" if SUPERH + default "drivers/video/logo/logo_linux_vga16.ppm" + help + Takes a path to a logo in the portable pixmap file format (.ppm), + using the 16 colors from the drivers/video/logo/clut_vga16.ppm + palette. This defaults to the Tux penguin. -config LOGO_SGI_CLUT224 - bool "224-color SGI Linux logo" - depends on SGI_IP22 || SGI_IP27 || SGI_IP32 - default y + For example, the below ImageMagick command can be used to reduce an + image to the VGA 16 colors palette and convert into a ppm file: -config LOGO_SUN_CLUT224 - bool "224-color Sun Linux logo" - depends on SPARC - default y + magick source_image -compress none \ + -remap drivers/video/logo/clut_vga16.ppm destination.ppm -config LOGO_SUPERH_MONO - bool "Black and white SuperH Linux logo" - depends on SUPERH +config LOGO_LINUX_CLUT224 + bool "Standard 224-color Linux logo" default y -config LOGO_SUPERH_VGA16 - bool "16-color SuperH Linux logo" - depends on SUPERH - default y +config LOGO_LINUX_CLUT224_FILE + string "224-color logo .ppm file" + depends on LOGO_LINUX_CLUT224 + default "drivers/video/logo/logo_dec_clut224.ppm" if MACH_DECSTATION || ALPHA + default "drivers/video/logo/logo_parisc_clut224.ppm" if PARISC + default "drivers/video/logo/logo_sgi_clut224.ppm" if SGI_IP22 || SGI_IP27 || SGI_IP32 + default "drivers/video/logo/logo_sun_clut224.ppm" if SPARC + default "drivers/video/logo/logo_superh_clut224.ppm" if SUPERH + default "drivers/video/logo/logo_linux_clut224.ppm" + help + Takes a path to a 224-color logo in the portable pixmap file + format (.ppm). This defaults to the Tux penguin. -config LOGO_SUPERH_CLUT224 - bool "224-color SuperH Linux logo" - depends on SUPERH - default y + For example, the below ImageMagick command can be used to reduce + an image palette to 224 colors and convert it into a ppm file: + + magick source_image -compress none -colors 224 destination.ppm endif # LOGO diff --git a/drivers/video/logo/Makefile b/drivers/video/logo/Makefile index 895c60b8402e..937b37d3b6c7 100644 --- a/drivers/video/logo/Makefile +++ b/drivers/video/logo/Makefile @@ -5,14 +5,6 @@ obj-$(CONFIG_LOGO) += logo.o obj-$(CONFIG_LOGO_LINUX_MONO) += logo_linux_mono.o obj-$(CONFIG_LOGO_LINUX_VGA16) += logo_linux_vga16.o obj-$(CONFIG_LOGO_LINUX_CLUT224) += logo_linux_clut224.o -obj-$(CONFIG_LOGO_DEC_CLUT224) += logo_dec_clut224.o -obj-$(CONFIG_LOGO_MAC_CLUT224) += logo_mac_clut224.o -obj-$(CONFIG_LOGO_PARISC_CLUT224) += logo_parisc_clut224.o -obj-$(CONFIG_LOGO_SGI_CLUT224) += logo_sgi_clut224.o -obj-$(CONFIG_LOGO_SUN_CLUT224) += logo_sun_clut224.o -obj-$(CONFIG_LOGO_SUPERH_MONO) += logo_superh_mono.o -obj-$(CONFIG_LOGO_SUPERH_VGA16) += logo_superh_vga16.o -obj-$(CONFIG_LOGO_SUPERH_CLUT224) += logo_superh_clut224.o obj-$(CONFIG_SPU_BASE) += logo_spe_clut224.o @@ -20,18 +12,21 @@ obj-$(CONFIG_SPU_BASE) += logo_spe_clut224.o hostprogs := pnmtologo -# Create commands like "pnmtologo -t mono -n logo_mac_mono -o ..." +# Create commands like "pnmtologo -t mono -n logo_linux_mono -o ..." quiet_cmd_logo = LOGO $@ - cmd_logo = $(obj)/pnmtologo -t $(lastword $(subst _, ,$*)) -n $* -o $@ $< + cmd_logo = $(obj)/pnmtologo -t $2 -n $(basename $(notdir $@)) -o $@ $< -$(obj)/%.c: $(src)/%.pbm $(obj)/pnmtologo FORCE - $(call if_changed,logo) +$(obj)/logo_linux_mono.c: $(CONFIG_LOGO_LINUX_MONO_FILE) $(obj)/pnmtologo FORCE + $(call if_changed,logo,mono) -$(obj)/%.c: $(src)/%.ppm $(obj)/pnmtologo FORCE - $(call if_changed,logo) +$(obj)/logo_linux_vga16.c: $(CONFIG_LOGO_LINUX_VGA16_FILE) $(obj)/pnmtologo FORCE + $(call if_changed,logo,vga16) -$(obj)/%.c: $(src)/%.pgm $(obj)/pnmtologo FORCE - $(call if_changed,logo) +$(obj)/logo_linux_clut224.c: $(CONFIG_LOGO_LINUX_CLUT224_FILE) $(obj)/pnmtologo FORCE + $(call if_changed,logo,clut224) + +$(obj)/%_clut224.c: $(src)/%_clut224.ppm $(obj)/pnmtologo FORCE + $(call if_changed,logo,clut224) # generated C files -targets += *_mono.c *_vga16.c *_clut224.c *_gray256.c +targets += *_mono.c *_vga16.c *_clut224.c diff --git a/drivers/video/logo/logo.c b/drivers/video/logo/logo.c index 141f15a9a459..91535f8848da 100644 --- a/drivers/video/logo/logo.c +++ b/drivers/video/logo/logo.c @@ -48,59 +48,21 @@ const struct linux_logo * __ref fb_find_logo(int depth) if (nologo || logos_freed) return NULL; - if (depth >= 1) { #ifdef CONFIG_LOGO_LINUX_MONO - /* Generic Linux logo */ + if (depth >= 1) logo = &logo_linux_mono; #endif -#ifdef CONFIG_LOGO_SUPERH_MONO - /* SuperH Linux logo */ - logo = &logo_superh_mono; -#endif - } - if (depth >= 4) { #ifdef CONFIG_LOGO_LINUX_VGA16 - /* Generic Linux logo */ + if (depth >= 4) logo = &logo_linux_vga16; #endif -#ifdef CONFIG_LOGO_SUPERH_VGA16 - /* SuperH Linux logo */ - logo = &logo_superh_vga16; -#endif - } - if (depth >= 8) { #ifdef CONFIG_LOGO_LINUX_CLUT224 - /* Generic Linux logo */ + if (depth >= 8) logo = &logo_linux_clut224; #endif -#ifdef CONFIG_LOGO_DEC_CLUT224 - /* DEC Linux logo on MIPS/MIPS64 or ALPHA */ - logo = &logo_dec_clut224; -#endif -#ifdef CONFIG_LOGO_MAC_CLUT224 - /* Macintosh Linux logo on m68k */ - if (MACH_IS_MAC) - logo = &logo_mac_clut224; -#endif -#ifdef CONFIG_LOGO_PARISC_CLUT224 - /* PA-RISC Linux logo */ - logo = &logo_parisc_clut224; -#endif -#ifdef CONFIG_LOGO_SGI_CLUT224 - /* SGI Linux logo on MIPS/MIPS64 */ - logo = &logo_sgi_clut224; -#endif -#ifdef CONFIG_LOGO_SUN_CLUT224 - /* Sun Linux logo */ - logo = &logo_sun_clut224; -#endif -#ifdef CONFIG_LOGO_SUPERH_CLUT224 - /* SuperH Linux logo */ - logo = &logo_superh_clut224; -#endif - } + return logo; } EXPORT_SYMBOL_GPL(fb_find_logo); diff --git a/drivers/video/logo/logo_mac_clut224.ppm b/drivers/video/logo/logo_mac_clut224.ppm deleted file mode 100644 index 4dad34baea89..000000000000 --- a/drivers/video/logo/logo_mac_clut224.ppm +++ /dev/null @@ -1,1604 +0,0 @@ -P3 -# 224-color Macintosh Linux logo -80 80 -255 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 6 6 6 6 6 6 10 10 10 10 10 10 - 10 10 10 6 6 6 6 6 6 6 6 6 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 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0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c index bebd371c6b93..a6ec392253c3 100644 --- a/drivers/video/of_display_timing.c +++ b/drivers/video/of_display_timing.c @@ -181,7 +181,7 @@ struct display_timings *of_get_display_timings(const struct device_node *np) if (disp->num_timings == 0) { /* should never happen, as entry was already found above */ pr_err("%pOF: no timings specified\n", np); - goto entryfail; + goto timingfail; } disp->timings = kcalloc(disp->num_timings, @@ -189,13 +189,13 @@ struct display_timings *of_get_display_timings(const struct device_node *np) GFP_KERNEL); if (!disp->timings) { pr_err("%pOF: could not allocate timings array\n", np); - goto entryfail; + goto timingfail; } disp->num_timings = 0; disp->native_mode = 0; - for_each_child_of_node(timings_np, entry) { + for_each_child_of_node_scoped(timings_np, child) { struct display_timing *dt; int r; @@ -206,7 +206,7 @@ struct display_timings *of_get_display_timings(const struct device_node *np) goto timingfail; } - r = of_parse_display_timing(entry, dt); + r = of_parse_display_timing(child, dt); if (r) { /* * to not encourage wrong devicetrees, fail in case of @@ -218,7 +218,7 @@ struct display_timings *of_get_display_timings(const struct device_node *np) goto timingfail; } - if (native_mode == entry) + if (native_mode == child) disp->native_mode = disp->num_timings; disp->timings[disp->num_timings] = dt; |