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authorDave Airlie <airlied@redhat.com>2024-02-05 06:49:47 +0300
committerDave Airlie <airlied@redhat.com>2024-02-05 06:50:15 +0300
commitf8e4806e0dfa8796b3d7076a7fe054455a59c38b (patch)
treee74d26052276e5a5d86b2ee9d92ae63cb3578f50 /drivers/video
parent54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478 (diff)
parent502756e23360d1192c496bc6791e97621e8578d8 (diff)
downloadlinux-f8e4806e0dfa8796b3d7076a7fe054455a59c38b.tar.xz
Merge tag 'drm-misc-next-2024-01-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.9: UAPI Changes: virtio: - add Venus capset defines Cross-subsystem Changes: Core Changes: - fix drm_fixp2int_ceil() - documentation fixes - clean ups - allow DRM_MM_DEBUG with DRM=m - build fixes for debugfs support - EDID cleanups - sched: error-handling fixes - ttm: add tests Driver Changes: bridge: - ite-6505: fix DP link-training bug - samsung-dsim: fix error checking in probe - tc358767: fix regmap usage efifb: - use copy of global screen_info state hisilicon: - fix EDID includes mgag200: - improve ioremap usage - convert to struct drm_edid nouveau: - disp: use kmemdup() - fix EDID includes - documentation fixes panel: - ltk050h3146w: error-handling fixes - panel-edp: support delay between power-on and enable; use put_sync in unprepare; support Mediatek MT8173 Chromebooks, BOE NV116WHM-N49 V8.0, BOE NV122WUM-N41, CSO MNC207QS1-1 plus DT bindings - panel-lvds: support EDT ETML0700Z9NDHA plus DT bindings - panel-novatek: FRIDA FRD400B25025-A-CTK plus DT bindings qaic: - fixes to BO handling - make use of DRM managed release - fix order of remove operations rockchip: - analogix_dp: get encoder port from DT - inno_hdmi: support HDMI for RK3128 - lvds: error-handling fixes simplefb: - fix logging ssd130x: - support SSD133x plus DT bindings tegra: - fix error handling tilcdc: - make use of DRM managed release v3d: - show memory stats in debugfs vc4: - fix error handling in plane prepare_fb - fix framebuffer test in plane helpers vesafb: - use copy of global screen_info state virtio: - cleanups vkms: - fix OOB access when programming the LUT - Kconfig improvements vmwgfx: - unmap surface before changing plane state - fix memory leak in error handling - documentation fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240111154902.GA8448@linux-uq9g
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/efifb.c136
-rw-r--r--drivers/video/fbdev/simplefb.c2
-rw-r--r--drivers/video/fbdev/vesafb.c78
3 files changed, 124 insertions, 92 deletions
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index f9b4ddd592ce..10fc14ad5d12 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -108,7 +108,7 @@ static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
*/
#if defined CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER && \
defined CONFIG_ACPI_BGRT
-static void efifb_copy_bmp(u8 *src, u32 *dst, int width, struct screen_info *si)
+static void efifb_copy_bmp(u8 *src, u32 *dst, int width, const struct screen_info *si)
{
u8 r, g, b;
@@ -130,7 +130,7 @@ static void efifb_copy_bmp(u8 *src, u32 *dst, int width, struct screen_info *si)
* resolution still fits, it will be displayed very close to the right edge of
* the display looking quite bad. This function checks for this.
*/
-static bool efifb_bgrt_sanity_check(struct screen_info *si, u32 bmp_width)
+static bool efifb_bgrt_sanity_check(const struct screen_info *si, u32 bmp_width)
{
/*
* All x86 firmwares horizontally center the image (the yoffset
@@ -141,16 +141,15 @@ static bool efifb_bgrt_sanity_check(struct screen_info *si, u32 bmp_width)
return bgrt_tab.image_offset_x == expected_xoffset;
}
#else
-static bool efifb_bgrt_sanity_check(struct screen_info *si, u32 bmp_width)
+static bool efifb_bgrt_sanity_check(const struct screen_info *si, u32 bmp_width)
{
return true;
}
#endif
-static void efifb_show_boot_graphics(struct fb_info *info)
+static void efifb_show_boot_graphics(struct fb_info *info, const struct screen_info *si)
{
u32 bmp_width, bmp_height, bmp_pitch, dst_x, y, src_y;
- struct screen_info *si = &screen_info;
struct bmp_file_header *file_header;
struct bmp_dib_header *dib_header;
void *bgrt_image = NULL;
@@ -247,7 +246,8 @@ error:
pr_warn("efifb: Ignoring BGRT: unexpected or invalid BMP data\n");
}
#else
-static inline void efifb_show_boot_graphics(struct fb_info *info) {}
+static inline void efifb_show_boot_graphics(struct fb_info *info, const struct screen_info *si)
+{ }
#endif
/*
@@ -282,7 +282,7 @@ static const struct fb_ops efifb_ops = {
.fb_setcolreg = efifb_setcolreg,
};
-static int efifb_setup(char *options)
+static int efifb_setup(struct screen_info *si, char *options)
{
char *this_opt;
@@ -290,16 +290,16 @@ static int efifb_setup(char *options)
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!*this_opt) continue;
- efifb_setup_from_dmi(&screen_info, this_opt);
+ efifb_setup_from_dmi(si, this_opt);
if (!strncmp(this_opt, "base:", 5))
- screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0);
+ si->lfb_base = simple_strtoul(this_opt+5, NULL, 0);
else if (!strncmp(this_opt, "stride:", 7))
- screen_info.lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4;
+ si->lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4;
else if (!strncmp(this_opt, "height:", 7))
- screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0);
+ si->lfb_height = simple_strtoul(this_opt+7, NULL, 0);
else if (!strncmp(this_opt, "width:", 6))
- screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0);
+ si->lfb_width = simple_strtoul(this_opt+6, NULL, 0);
else if (!strcmp(this_opt, "nowc"))
mem_flags &= ~EFI_MEMORY_WC;
else if (!strcmp(this_opt, "nobgrt"))
@@ -310,15 +310,15 @@ static int efifb_setup(char *options)
return 0;
}
-static inline bool fb_base_is_valid(void)
+static inline bool fb_base_is_valid(struct screen_info *si)
{
- if (screen_info.lfb_base)
+ if (si->lfb_base)
return true;
- if (!(screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE))
+ if (!(si->capabilities & VIDEO_CAPABILITY_64BIT_BASE))
return false;
- if (screen_info.ext_lfb_base)
+ if (si->ext_lfb_base)
return true;
return false;
@@ -329,7 +329,10 @@ static ssize_t name##_show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
- return sprintf(buf, fmt "\n", (screen_info.lfb_##name)); \
+ struct screen_info *si = dev_get_platdata(dev); \
+ if (!si) \
+ return -ENODEV; \
+ return sprintf(buf, fmt "\n", (si->lfb_##name)); \
} \
static DEVICE_ATTR_RO(name)
@@ -356,6 +359,7 @@ static u64 bar_offset;
static int efifb_probe(struct platform_device *dev)
{
+ struct screen_info *si;
struct fb_info *info;
struct efifb_par *par;
int err, orientation;
@@ -365,48 +369,60 @@ static int efifb_probe(struct platform_device *dev)
char *option = NULL;
efi_memory_desc_t md;
- if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled)
+ /*
+ * If we fail probing the device, the kernel might try a different
+ * driver. We get a copy of the attached screen_info, so that we can
+ * modify its values without affecting later drivers.
+ */
+ si = dev_get_platdata(&dev->dev);
+ if (!si)
+ return -ENODEV;
+ si = devm_kmemdup(&dev->dev, si, sizeof(*si), GFP_KERNEL);
+ if (!si)
+ return -ENOMEM;
+
+ if (si->orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled)
return -ENODEV;
if (fb_get_options("efifb", &option))
return -ENODEV;
- efifb_setup(option);
+ efifb_setup(si, option);
/* We don't get linelength from UGA Draw Protocol, only from
* EFI Graphics Protocol. So if it's not in DMI, and it's not
* passed in from the user, we really can't use the framebuffer.
*/
- if (!screen_info.lfb_linelength)
+ if (!si->lfb_linelength)
return -ENODEV;
- if (!screen_info.lfb_depth)
- screen_info.lfb_depth = 32;
- if (!screen_info.pages)
- screen_info.pages = 1;
- if (!fb_base_is_valid()) {
+ if (!si->lfb_depth)
+ si->lfb_depth = 32;
+ if (!si->pages)
+ si->pages = 1;
+ if (!fb_base_is_valid(si)) {
printk(KERN_DEBUG "efifb: invalid framebuffer address\n");
return -ENODEV;
}
printk(KERN_INFO "efifb: probing for efifb\n");
/* just assume they're all unset if any are */
- if (!screen_info.blue_size) {
- screen_info.blue_size = 8;
- screen_info.blue_pos = 0;
- screen_info.green_size = 8;
- screen_info.green_pos = 8;
- screen_info.red_size = 8;
- screen_info.red_pos = 16;
- screen_info.rsvd_size = 8;
- screen_info.rsvd_pos = 24;
+ if (!si->blue_size) {
+ si->blue_size = 8;
+ si->blue_pos = 0;
+ si->green_size = 8;
+ si->green_pos = 8;
+ si->red_size = 8;
+ si->red_pos = 16;
+ si->rsvd_size = 8;
+ si->rsvd_pos = 24;
}
- efifb_fix.smem_start = screen_info.lfb_base;
+ efifb_fix.smem_start = si->lfb_base;
- if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) {
+ if (si->capabilities & VIDEO_CAPABILITY_64BIT_BASE) {
u64 ext_lfb_base;
- ext_lfb_base = (u64)(unsigned long)screen_info.ext_lfb_base << 32;
+ ext_lfb_base = (u64)(unsigned long)si->ext_lfb_base << 32;
efifb_fix.smem_start |= ext_lfb_base;
}
@@ -417,10 +433,10 @@ static int efifb_probe(struct platform_device *dev)
efifb_fix.smem_start = bar_resource->start + bar_offset;
}
- efifb_defined.bits_per_pixel = screen_info.lfb_depth;
- efifb_defined.xres = screen_info.lfb_width;
- efifb_defined.yres = screen_info.lfb_height;
- efifb_fix.line_length = screen_info.lfb_linelength;
+ efifb_defined.bits_per_pixel = si->lfb_depth;
+ efifb_defined.xres = si->lfb_width;
+ efifb_defined.yres = si->lfb_height;
+ efifb_fix.line_length = si->lfb_linelength;
/* size_vmode -- that is the amount of memory needed for the
* used video mode, i.e. the minimum amount of
@@ -430,7 +446,7 @@ static int efifb_probe(struct platform_device *dev)
/* size_total -- all video memory we have. Used for
* entries, ressource allocation and bounds
* checking. */
- size_total = screen_info.lfb_size;
+ size_total = si->lfb_size;
if (size_total < size_vmode)
size_total = size_vmode;
@@ -505,14 +521,14 @@ static int efifb_probe(struct platform_device *dev)
goto err_release_fb;
}
- efifb_show_boot_graphics(info);
+ efifb_show_boot_graphics(info, si);
pr_info("efifb: framebuffer at 0x%lx, using %dk, total %dk\n",
efifb_fix.smem_start, size_remap/1024, size_total/1024);
pr_info("efifb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
efifb_defined.xres, efifb_defined.yres,
efifb_defined.bits_per_pixel, efifb_fix.line_length,
- screen_info.pages);
+ si->pages);
efifb_defined.xres_virtual = efifb_defined.xres;
efifb_defined.yres_virtual = efifb_fix.smem_len /
@@ -526,26 +542,26 @@ static int efifb_probe(struct platform_device *dev)
efifb_defined.left_margin = (efifb_defined.xres / 8) & 0xf8;
efifb_defined.hsync_len = (efifb_defined.xres / 8) & 0xf8;
- efifb_defined.red.offset = screen_info.red_pos;
- efifb_defined.red.length = screen_info.red_size;
- efifb_defined.green.offset = screen_info.green_pos;
- efifb_defined.green.length = screen_info.green_size;
- efifb_defined.blue.offset = screen_info.blue_pos;
- efifb_defined.blue.length = screen_info.blue_size;
- efifb_defined.transp.offset = screen_info.rsvd_pos;
- efifb_defined.transp.length = screen_info.rsvd_size;
+ efifb_defined.red.offset = si->red_pos;
+ efifb_defined.red.length = si->red_size;
+ efifb_defined.green.offset = si->green_pos;
+ efifb_defined.green.length = si->green_size;
+ efifb_defined.blue.offset = si->blue_pos;
+ efifb_defined.blue.length = si->blue_size;
+ efifb_defined.transp.offset = si->rsvd_pos;
+ efifb_defined.transp.length = si->rsvd_size;
pr_info("efifb: %s: "
"size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
"Truecolor",
- screen_info.rsvd_size,
- screen_info.red_size,
- screen_info.green_size,
- screen_info.blue_size,
- screen_info.rsvd_pos,
- screen_info.red_pos,
- screen_info.green_pos,
- screen_info.blue_pos);
+ si->rsvd_size,
+ si->red_size,
+ si->green_size,
+ si->blue_size,
+ si->rsvd_pos,
+ si->red_pos,
+ si->green_pos,
+ si->blue_pos);
efifb_fix.ypanstep = 0;
efifb_fix.ywrapstep = 0;
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index 6f58ee276ad1..028a56525047 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -470,7 +470,7 @@ static int simplefb_attach_genpds(struct simplefb_par *par,
if (err == -ENOENT)
return 0;
- dev_info(dev, "failed to parse power-domains: %d\n", err);
+ dev_err(dev, "failed to parse power-domains: %d\n", err);
return err;
}
diff --git a/drivers/video/fbdev/vesafb.c b/drivers/video/fbdev/vesafb.c
index c0edceea0a79..8ab64ae4cad3 100644
--- a/drivers/video/fbdev/vesafb.c
+++ b/drivers/video/fbdev/vesafb.c
@@ -243,6 +243,7 @@ static int vesafb_setup(char *options)
static int vesafb_probe(struct platform_device *dev)
{
+ struct screen_info *si;
struct fb_info *info;
struct vesafb_par *par;
int i, err;
@@ -251,21 +252,33 @@ static int vesafb_probe(struct platform_device *dev)
unsigned int size_total;
char *option = NULL;
+ /*
+ * If we fail probing the device, the kernel might try a different
+ * driver. We get a copy of the attached screen_info, so that we can
+ * modify its values without affecting later drivers.
+ */
+ si = dev_get_platdata(&dev->dev);
+ if (!si)
+ return -ENODEV;
+ si = devm_kmemdup(&dev->dev, si, sizeof(*si), GFP_KERNEL);
+ if (!si)
+ return -ENOMEM;
+
/* ignore error return of fb_get_options */
fb_get_options("vesafb", &option);
vesafb_setup(option);
- if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
+ if (si->orig_video_isVGA != VIDEO_TYPE_VLFB)
return -ENODEV;
- vga_compat = (screen_info.capabilities & 2) ? 0 : 1;
- vesafb_fix.smem_start = screen_info.lfb_base;
- vesafb_defined.bits_per_pixel = screen_info.lfb_depth;
+ vga_compat = (si->capabilities & 2) ? 0 : 1;
+ vesafb_fix.smem_start = si->lfb_base;
+ vesafb_defined.bits_per_pixel = si->lfb_depth;
if (15 == vesafb_defined.bits_per_pixel)
vesafb_defined.bits_per_pixel = 16;
- vesafb_defined.xres = screen_info.lfb_width;
- vesafb_defined.yres = screen_info.lfb_height;
- vesafb_fix.line_length = screen_info.lfb_linelength;
+ vesafb_defined.xres = si->lfb_width;
+ vesafb_defined.yres = si->lfb_height;
+ vesafb_fix.line_length = si->lfb_linelength;
vesafb_fix.visual = (vesafb_defined.bits_per_pixel == 8) ?
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
@@ -277,7 +290,7 @@ static int vesafb_probe(struct platform_device *dev)
/* size_total -- all video memory we have. Used for mtrr
* entries, resource allocation and bounds
* checking. */
- size_total = screen_info.lfb_size * 65536;
+ size_total = si->lfb_size * 65536;
if (vram_total)
size_total = vram_total * 1024 * 1024;
if (size_total < size_vmode)
@@ -297,7 +310,7 @@ static int vesafb_probe(struct platform_device *dev)
vesafb_fix.smem_len = size_remap;
#ifndef __i386__
- screen_info.vesapm_seg = 0;
+ si->vesapm_seg = 0;
#endif
if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
@@ -317,23 +330,26 @@ static int vesafb_probe(struct platform_device *dev)
par = info->par;
info->pseudo_palette = par->pseudo_palette;
- par->base = screen_info.lfb_base;
+ par->base = si->lfb_base;
par->size = size_total;
printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
- vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
+ vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
+ vesafb_fix.line_length, si->pages);
- if (screen_info.vesapm_seg) {
+ if (si->vesapm_seg) {
printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
- screen_info.vesapm_seg,screen_info.vesapm_off);
+ si->vesapm_seg, si->vesapm_off);
}
- if (screen_info.vesapm_seg < 0xc000)
+ if (si->vesapm_seg < 0xc000)
ypan = pmi_setpal = 0; /* not available or some DOS TSR ... */
if (ypan || pmi_setpal) {
+ unsigned long pmi_phys;
unsigned short *pmi_base;
- pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
+ pmi_phys = ((unsigned long)si->vesapm_seg << 4) + si->vesapm_off;
+ pmi_base = (unsigned short *)phys_to_virt(pmi_phys);
pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
@@ -377,14 +393,14 @@ static int vesafb_probe(struct platform_device *dev)
vesafb_defined.left_margin = (vesafb_defined.xres / 8) & 0xf8;
vesafb_defined.hsync_len = (vesafb_defined.xres / 8) & 0xf8;
- vesafb_defined.red.offset = screen_info.red_pos;
- vesafb_defined.red.length = screen_info.red_size;
- vesafb_defined.green.offset = screen_info.green_pos;
- vesafb_defined.green.length = screen_info.green_size;
- vesafb_defined.blue.offset = screen_info.blue_pos;
- vesafb_defined.blue.length = screen_info.blue_size;
- vesafb_defined.transp.offset = screen_info.rsvd_pos;
- vesafb_defined.transp.length = screen_info.rsvd_size;
+ vesafb_defined.red.offset = si->red_pos;
+ vesafb_defined.red.length = si->red_size;
+ vesafb_defined.green.offset = si->green_pos;
+ vesafb_defined.green.length = si->green_size;
+ vesafb_defined.blue.offset = si->blue_pos;
+ vesafb_defined.blue.length = si->blue_size;
+ vesafb_defined.transp.offset = si->rsvd_pos;
+ vesafb_defined.transp.length = si->rsvd_size;
if (vesafb_defined.bits_per_pixel <= 8) {
depth = vesafb_defined.green.length;
@@ -399,14 +415,14 @@ static int vesafb_probe(struct platform_device *dev)
(vesafb_defined.bits_per_pixel > 8) ?
"Truecolor" : (vga_compat || pmi_setpal) ?
"Pseudocolor" : "Static Pseudocolor",
- screen_info.rsvd_size,
- screen_info.red_size,
- screen_info.green_size,
- screen_info.blue_size,
- screen_info.rsvd_pos,
- screen_info.red_pos,
- screen_info.green_pos,
- screen_info.blue_pos);
+ si->rsvd_size,
+ si->red_size,
+ si->green_size,
+ si->blue_size,
+ si->rsvd_pos,
+ si->red_pos,
+ si->green_pos,
+ si->blue_pos);
vesafb_fix.ypanstep = ypan ? 1 : 0;
vesafb_fix.ywrapstep = (ypan>1) ? 1 : 0;