diff options
author | charveey | 2022-06-17 14:55:24 +0000 |
---|---|---|
committer | charveey | 2022-06-17 14:55:24 +0000 |
commit | c807d58a63caf6595ee22c20b2cce20b66c9c589 (patch) | |
tree | d0259fe17d428c29d07f3083ff86c44ab0cf03eb /0006-bootsplash.patch | |
parent | c5f7cb59eae34d9b86d127ba84741a63735bbd63 (diff) | |
download | aur-linux-bootsplash.tar.gz |
updated to Linux 5.17.7
Diffstat (limited to '0006-bootsplash.patch')
-rw-r--r-- | 0006-bootsplash.patch | 669 |
1 files changed, 0 insertions, 669 deletions
diff --git a/0006-bootsplash.patch b/0006-bootsplash.patch deleted file mode 100644 index 92d62caa7031..000000000000 --- a/0006-bootsplash.patch +++ /dev/null @@ -1,669 +0,0 @@ -diff --git a/MAINTAINERS b/MAINTAINERS -index b5633b56391e..5c237445761e 100644 ---- a/MAINTAINERS -+++ b/MAINTAINERS -@@ -2712,6 +2712,7 @@ S: Maintained - F: drivers/video/fbdev/core/bootsplash*.* - F: drivers/video/fbdev/core/dummycon.c - F: include/linux/bootsplash.h -+F: include/uapi/linux/bootsplash_file.h - - BPF (Safe dynamic programs and tools) - M: Alexei Starovoitov <ast@kernel.org> -diff --git a/drivers/video/fbdev/core/Makefile b/drivers/video/fbdev/core/Makefile -index 66895321928e..6a8d1bab8a01 100644 ---- a/drivers/video/fbdev/core/Makefile -+++ b/drivers/video/fbdev/core/Makefile -@@ -31,4 +31,4 @@ obj-$(CONFIG_FB_SVGALIB) += svgalib.o - obj-$(CONFIG_FB_DDC) += fb_ddc.o - - obj-$(CONFIG_BOOTSPLASH) += bootsplash.o bootsplash_render.o \ -- dummyblit.o -+ bootsplash_load.o dummyblit.o -diff --git a/drivers/video/fbdev/core/bootsplash.c b/drivers/video/fbdev/core/bootsplash.c -index e449755af268..843c5400fefc 100644 ---- a/drivers/video/fbdev/core/bootsplash.c -+++ b/drivers/video/fbdev/core/bootsplash.c -@@ -32,6 +32,7 @@ - #include <linux/workqueue.h> - - #include "bootsplash_internal.h" -+#include "uapi/linux/bootsplash_file.h" - - - /* -@@ -102,10 +103,17 @@ static bool is_fb_compatible(const struct fb_info *info) - */ - void bootsplash_render_full(struct fb_info *info) - { -+ mutex_lock(&splash_state.data_lock); -+ - if (!is_fb_compatible(info)) -- return; -+ goto out; -+ -+ bootsplash_do_render_background(info, splash_state.file); -+ -+ bootsplash_do_render_pictures(info, splash_state.file); - -- bootsplash_do_render_background(info); -+out: -+ mutex_unlock(&splash_state.data_lock); - } - - -@@ -116,6 +124,7 @@ bool bootsplash_would_render_now(void) - { - return !oops_in_progress - && !console_blanked -+ && splash_state.file - && bootsplash_is_enabled(); - } - -@@ -252,6 +261,7 @@ static struct platform_driver splash_driver = { - void bootsplash_init(void) - { - int ret; -+ struct splash_file_priv *fp; - - /* Initialized already? */ - if (splash_state.splash_device) -@@ -280,8 +290,26 @@ void bootsplash_init(void) - } - - -+ mutex_init(&splash_state.data_lock); -+ set_bit(0, &splash_state.enabled); -+ - INIT_WORK(&splash_state.work_redraw_vc, splash_callback_redraw_vc); - -+ -+ if (!splash_state.bootfile || !strlen(splash_state.bootfile)) -+ return; -+ -+ fp = bootsplash_load_firmware(&splash_state.splash_device->dev, -+ splash_state.bootfile); -+ -+ if (!fp) -+ goto err; -+ -+ mutex_lock(&splash_state.data_lock); -+ splash_state.splash_fb = NULL; -+ splash_state.file = fp; -+ mutex_unlock(&splash_state.data_lock); -+ - return; - - err_device: -@@ -292,3 +320,7 @@ void bootsplash_init(void) - err: - pr_err("Failed to initialize.\n"); - } -+ -+ -+module_param_named(bootfile, splash_state.bootfile, charp, 0444); -+MODULE_PARM_DESC(bootfile, "Bootsplash file to load on boot"); -diff --git a/drivers/video/fbdev/core/bootsplash_internal.h b/drivers/video/fbdev/core/bootsplash_internal.h -index b11da5cb90bf..71e2a27ac0b8 100644 ---- a/drivers/video/fbdev/core/bootsplash_internal.h -+++ b/drivers/video/fbdev/core/bootsplash_internal.h -@@ -15,15 +15,43 @@ - - #include <linux/types.h> - #include <linux/fb.h> -+#include <linux/firmware.h> - #include <linux/kernel.h> - #include <linux/mutex.h> - #include <linux/spinlock.h> - -+#include "uapi/linux/bootsplash_file.h" -+ - - /* - * Runtime types - */ -+struct splash_blob_priv { -+ struct splash_blob_header *blob_header; -+ const void *data; -+}; -+ -+ -+struct splash_pic_priv { -+ const struct splash_pic_header *pic_header; -+ -+ struct splash_blob_priv *blobs; -+ u16 blobs_loaded; -+}; -+ -+ -+struct splash_file_priv { -+ const struct firmware *fw; -+ const struct splash_file_header *header; -+ -+ struct splash_pic_priv *pics; -+}; -+ -+ - struct splash_priv { -+ /* Bootup and runtime state */ -+ char *bootfile; -+ - /* - * Enabled/disabled state, to be used with atomic bit operations. - * Bit 0: 0 = Splash hidden -@@ -43,6 +71,13 @@ struct splash_priv { - struct platform_device *splash_device; - - struct work_struct work_redraw_vc; -+ -+ /* Splash data structures including lock for everything below */ -+ struct mutex data_lock; -+ -+ struct fb_info *splash_fb; -+ -+ struct splash_file_priv *file; - }; - - -@@ -50,6 +85,14 @@ struct splash_priv { - /* - * Rendering functions - */ --void bootsplash_do_render_background(struct fb_info *info); -+void bootsplash_do_render_background(struct fb_info *info, -+ const struct splash_file_priv *fp); -+void bootsplash_do_render_pictures(struct fb_info *info, -+ const struct splash_file_priv *fp); -+ -+ -+void bootsplash_free_file(struct splash_file_priv *fp); -+struct splash_file_priv *bootsplash_load_firmware(struct device *device, -+ const char *path); - - #endif -diff --git a/drivers/video/fbdev/core/bootsplash_load.c b/drivers/video/fbdev/core/bootsplash_load.c -new file mode 100644 -index 000000000000..fd807571ab7d ---- /dev/null -+++ b/drivers/video/fbdev/core/bootsplash_load.c -@@ -0,0 +1,225 @@ -+/* -+ * Kernel based bootsplash. -+ * -+ * (Loading and freeing functions) -+ * -+ * Authors: -+ * Max Staudt <mstaudt@suse.de> -+ * -+ * SPDX-License-Identifier: GPL-2.0 -+ */ -+ -+#define pr_fmt(fmt) "bootsplash: " fmt -+ -+ -+#include <linux/bootsplash.h> -+#include <linux/fb.h> -+#include <linux/firmware.h> -+#include <linux/kernel.h> -+#include <linux/mutex.h> -+#include <linux/printk.h> -+#include <linux/types.h> -+#include <linux/vmalloc.h> -+ -+#include "bootsplash_internal.h" -+#include "uapi/linux/bootsplash_file.h" -+ -+ -+ -+ -+/* -+ * Free all vmalloc()'d resources describing a splash file. -+ */ -+void bootsplash_free_file(struct splash_file_priv *fp) -+{ -+ if (!fp) -+ return; -+ -+ if (fp->pics) { -+ unsigned int i; -+ -+ for (i = 0; i < fp->header->num_pics; i++) { -+ struct splash_pic_priv *pp = &fp->pics[i]; -+ -+ if (pp->blobs) -+ vfree(pp->blobs); -+ } -+ -+ vfree(fp->pics); -+ } -+ -+ release_firmware(fp->fw); -+ vfree(fp); -+} -+ -+ -+ -+ -+/* -+ * Load a splash screen from a "firmware" file. -+ * -+ * Parsing, and sanity checks. -+ */ -+#ifdef __BIG_ENDIAN -+ #define BOOTSPLASH_MAGIC BOOTSPLASH_MAGIC_BE -+#else -+ #define BOOTSPLASH_MAGIC BOOTSPLASH_MAGIC_LE -+#endif -+ -+struct splash_file_priv *bootsplash_load_firmware(struct device *device, -+ const char *path) -+{ -+ const struct firmware *fw; -+ struct splash_file_priv *fp; -+ unsigned int i; -+ const u8 *walker; -+ -+ if (request_firmware(&fw, path, device)) -+ return NULL; -+ -+ if (fw->size < sizeof(struct splash_file_header) -+ || memcmp(fw->data, BOOTSPLASH_MAGIC, sizeof(fp->header->id))) { -+ pr_err("Not a bootsplash file.\n"); -+ -+ release_firmware(fw); -+ return NULL; -+ } -+ -+ fp = vzalloc(sizeof(struct splash_file_priv)); -+ if (!fp) { -+ release_firmware(fw); -+ return NULL; -+ } -+ -+ pr_info("Loading splash file (%li bytes)\n", fw->size); -+ -+ fp->fw = fw; -+ fp->header = (struct splash_file_header *)fw->data; -+ -+ /* Sanity checks */ -+ if (fp->header->version != BOOTSPLASH_VERSION) { -+ pr_err("Loaded v%d file, but we only support version %d\n", -+ fp->header->version, -+ BOOTSPLASH_VERSION); -+ -+ goto err; -+ } -+ -+ if (fw->size < sizeof(struct splash_file_header) -+ + fp->header->num_pics -+ * sizeof(struct splash_pic_header) -+ + fp->header->num_blobs -+ * sizeof(struct splash_blob_header)) { -+ pr_err("File incomplete.\n"); -+ -+ goto err; -+ } -+ -+ /* Read picture headers */ -+ if (fp->header->num_pics) { -+ fp->pics = vzalloc(fp->header->num_pics -+ * sizeof(struct splash_pic_priv)); -+ if (!fp->pics) -+ goto err; -+ } -+ -+ walker = fw->data + sizeof(struct splash_file_header); -+ for (i = 0; i < fp->header->num_pics; i++) { -+ struct splash_pic_priv *pp = &fp->pics[i]; -+ struct splash_pic_header *ph = (void *)walker; -+ -+ pr_debug("Picture %u: Size %ux%u\n", i, ph->width, ph->height); -+ -+ if (ph->num_blobs < 1) { -+ pr_err("Picture %u: Zero blobs? Aborting load.\n", i); -+ goto err; -+ } -+ -+ pp->pic_header = ph; -+ pp->blobs = vzalloc(ph->num_blobs -+ * sizeof(struct splash_blob_priv)); -+ if (!pp->blobs) -+ goto err; -+ -+ walker += sizeof(struct splash_pic_header); -+ } -+ -+ /* Read blob headers */ -+ for (i = 0; i < fp->header->num_blobs; i++) { -+ struct splash_blob_header *bh = (void *)walker; -+ struct splash_pic_priv *pp; -+ -+ if (walker + sizeof(struct splash_blob_header) -+ > fw->data + fw->size) -+ goto err; -+ -+ walker += sizeof(struct splash_blob_header); -+ -+ if (walker + bh->length > fw->data + fw->size) -+ goto err; -+ -+ if (bh->picture_id >= fp->header->num_pics) -+ goto nextblob; -+ -+ pp = &fp->pics[bh->picture_id]; -+ -+ pr_debug("Blob %u, pic %u, blobs_loaded %u, num_blobs %u.\n", -+ i, bh->picture_id, -+ pp->blobs_loaded, pp->pic_header->num_blobs); -+ -+ if (pp->blobs_loaded >= pp->pic_header->num_blobs) -+ goto nextblob; -+ -+ switch (bh->type) { -+ case 0: -+ /* Raw 24-bit packed pixels */ -+ if (bh->length != pp->pic_header->width -+ * pp->pic_header->height * 3) { -+ pr_err("Blob %u, type 1: Length doesn't match picture.\n", -+ i); -+ -+ goto err; -+ } -+ break; -+ default: -+ pr_warn("Blob %u, unknown type %u.\n", i, bh->type); -+ goto nextblob; -+ } -+ -+ pp->blobs[pp->blobs_loaded].blob_header = bh; -+ pp->blobs[pp->blobs_loaded].data = walker; -+ pp->blobs_loaded++; -+ -+nextblob: -+ walker += bh->length; -+ if (bh->length % 16) -+ walker += 16 - (bh->length % 16); -+ } -+ -+ if (walker != fw->data + fw->size) -+ pr_warn("Trailing data in splash file.\n"); -+ -+ /* Walk over pictures and ensure all blob slots are filled */ -+ for (i = 0; i < fp->header->num_pics; i++) { -+ struct splash_pic_priv *pp = &fp->pics[i]; -+ -+ if (pp->blobs_loaded != pp->pic_header->num_blobs) { -+ pr_err("Picture %u doesn't have all blob slots filled.\n", -+ i); -+ -+ goto err; -+ } -+ } -+ -+ pr_info("Loaded (%ld bytes, %u pics, %u blobs).\n", -+ fw->size, -+ fp->header->num_pics, -+ fp->header->num_blobs); -+ -+ return fp; -+ -+ -+err: -+ bootsplash_free_file(fp); -+ return NULL; -+} -diff --git a/drivers/video/fbdev/core/bootsplash_render.c b/drivers/video/fbdev/core/bootsplash_render.c -index 4d7e0117f653..2ae36949d0e3 100644 ---- a/drivers/video/fbdev/core/bootsplash_render.c -+++ b/drivers/video/fbdev/core/bootsplash_render.c -@@ -19,6 +19,7 @@ - #include <linux/types.h> - - #include "bootsplash_internal.h" -+#include "uapi/linux/bootsplash_file.h" - - - -@@ -70,16 +71,69 @@ static inline u32 pack_pixel(const struct fb_var_screeninfo *dst_var, - } - - --void bootsplash_do_render_background(struct fb_info *info) -+/* -+ * Copy from source and blend into the destination picture. -+ * Currently assumes that the source picture is 24bpp. -+ * Currently assumes that the destination is <= 32bpp. -+ */ -+static int splash_convert_to_fb(u8 *dst, -+ const struct fb_var_screeninfo *dst_var, -+ unsigned int dst_stride, -+ unsigned int dst_xoff, -+ unsigned int dst_yoff, -+ const u8 *src, -+ unsigned int src_width, -+ unsigned int src_height) -+{ -+ unsigned int x, y; -+ unsigned int src_stride = 3 * src_width; /* Assume 24bpp packed */ -+ u32 dst_octpp = dst_var->bits_per_pixel / 8; -+ -+ dst_xoff += dst_var->xoffset; -+ dst_yoff += dst_var->yoffset; -+ -+ /* Copy with stride and pixel size adjustment */ -+ for (y = 0; -+ y < src_height && y + dst_yoff < dst_var->yres_virtual; -+ y++) { -+ const u8 *srcline = src + (y * src_stride); -+ u8 *dstline = dst + ((y + dst_yoff) * dst_stride) -+ + (dst_xoff * dst_octpp); -+ -+ for (x = 0; -+ x < src_width && x + dst_xoff < dst_var->xres_virtual; -+ x++) { -+ u8 red, green, blue; -+ u32 dstpix; -+ -+ /* Read pixel */ -+ red = *srcline++; -+ green = *srcline++; -+ blue = *srcline++; -+ -+ /* Write pixel */ -+ dstpix = pack_pixel(dst_var, red, green, blue); -+ memcpy(dstline, &dstpix, dst_octpp); -+ -+ dstline += dst_octpp; -+ } -+ } -+ -+ return 0; -+} -+ -+ -+void bootsplash_do_render_background(struct fb_info *info, -+ const struct splash_file_priv *fp) - { - unsigned int x, y; - u32 dstpix; - u32 dst_octpp = info->var.bits_per_pixel / 8; - - dstpix = pack_pixel(&info->var, -- 0, -- 0, -- 0); -+ fp->header->bg_red, -+ fp->header->bg_green, -+ fp->header->bg_blue); - - for (y = 0; y < info->var.yres_virtual; y++) { - u8 *dstline = info->screen_buffer + (y * info->fix.line_length); -@@ -91,3 +145,44 @@ void bootsplash_do_render_background(struct fb_info *info) - } - } - } -+ -+ -+void bootsplash_do_render_pictures(struct fb_info *info, -+ const struct splash_file_priv *fp) -+{ -+ unsigned int i; -+ -+ for (i = 0; i < fp->header->num_pics; i++) { -+ struct splash_blob_priv *bp; -+ struct splash_pic_priv *pp = &fp->pics[i]; -+ long dst_xoff, dst_yoff; -+ -+ if (pp->blobs_loaded < 1) -+ continue; -+ -+ bp = &pp->blobs[0]; -+ -+ if (!bp || bp->blob_header->type != 0) -+ continue; -+ -+ dst_xoff = (info->var.xres - pp->pic_header->width) / 2; -+ dst_yoff = (info->var.yres - pp->pic_header->height) / 2; -+ -+ if (dst_xoff < 0 -+ || dst_yoff < 0 -+ || dst_xoff + pp->pic_header->width > info->var.xres -+ || dst_yoff + pp->pic_header->height > info->var.yres) { -+ pr_info_once("Picture %u is out of bounds at current resolution: %dx%d\n" -+ "(this will only be printed once every reboot)\n", -+ i, info->var.xres, info->var.yres); -+ -+ continue; -+ } -+ -+ /* Draw next splash frame */ -+ splash_convert_to_fb(info->screen_buffer, &info->var, -+ info->fix.line_length, dst_xoff, dst_yoff, -+ bp->data, -+ pp->pic_header->width, pp->pic_header->height); -+ } -+} -diff --git a/include/uapi/linux/bootsplash_file.h b/include/uapi/linux/bootsplash_file.h -new file mode 100644 -index 000000000000..89dc9cca8f0c ---- /dev/null -+++ b/include/uapi/linux/bootsplash_file.h -@@ -0,0 +1,118 @@ -+/* -+ * Kernel based bootsplash. -+ * -+ * (File format) -+ * -+ * Authors: -+ * Max Staudt <mstaudt@suse.de> -+ * -+ * SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note -+ */ -+ -+#ifndef __BOOTSPLASH_FILE_H -+#define __BOOTSPLASH_FILE_H -+ -+ -+#define BOOTSPLASH_VERSION 55561 -+ -+ -+#include <linux/kernel.h> -+#include <linux/types.h> -+ -+ -+/* -+ * On-disk types -+ * -+ * A splash file consists of: -+ * - One single 'struct splash_file_header' -+ * - An array of 'struct splash_pic_header' -+ * - An array of raw data blocks, each padded to 16 bytes and -+ * preceded by a 'struct splash_blob_header' -+ * -+ * A single-frame splash may look like this: -+ * -+ * +--------------------+ -+ * | | -+ * | splash_file_header | -+ * | -> num_blobs = 1 | -+ * | -> num_pics = 1 | -+ * | | -+ * +--------------------+ -+ * | | -+ * | splash_pic_header | -+ * | | -+ * +--------------------+ -+ * | | -+ * | splash_blob_header | -+ * | -> type = 0 | -+ * | -> picture_id = 0 | -+ * | | -+ * | (raw RGB data) | -+ * | (pad to 16 bytes) | -+ * | | -+ * +--------------------+ -+ * -+ * All multi-byte values are stored on disk in the native format -+ * expected by the system the file will be used on. -+ */ -+#define BOOTSPLASH_MAGIC_BE "Linux bootsplash" -+#define BOOTSPLASH_MAGIC_LE "hsalpstoob xuniL" -+ -+struct splash_file_header { -+ uint8_t id[16]; /* "Linux bootsplash" (no trailing NUL) */ -+ -+ /* Splash file format version to avoid clashes */ -+ uint16_t version; -+ -+ /* The background color */ -+ uint8_t bg_red; -+ uint8_t bg_green; -+ uint8_t bg_blue; -+ uint8_t bg_reserved; -+ -+ /* -+ * Number of pic/blobs so we can allocate memory for internal -+ * structures ahead of time when reading the file -+ */ -+ uint16_t num_blobs; -+ uint8_t num_pics; -+ -+ uint8_t padding[103]; -+} __attribute__((__packed__)); -+ -+ -+struct splash_pic_header { -+ uint16_t width; -+ uint16_t height; -+ -+ /* -+ * Number of data packages associated with this picture. -+ * Currently, the only use for more than 1 is for animations. -+ */ -+ uint8_t num_blobs; -+ -+ uint8_t padding[27]; -+} __attribute__((__packed__)); -+ -+ -+struct splash_blob_header { -+ /* Length of the data block in bytes. */ -+ uint32_t length; -+ -+ /* -+ * Type of the contents. -+ * 0 - Raw RGB data. -+ */ -+ uint16_t type; -+ -+ /* -+ * Picture this blob is associated with. -+ * Blobs will be added to a picture in the order they are -+ * found in the file. -+ */ -+ uint8_t picture_id; -+ -+ uint8_t padding[9]; -+} __attribute__((__packed__)); -+ -+#endif |