diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-06-27 14:17:19 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-06-27 14:17:19 +0100 |
| commit | 53ae158f6ddc14df5c44d62c06e33fdb66de1196 (patch) | |
| tree | d0d0485f5f614e0070bab6ff1b53d56aec7c2d8e /drivers/video/fbdev/platinumfb.c | |
| parent | ac9a78681b921877518763ba0e89202254349d1b (diff) | |
| parent | 47ba5f39eab3c2a9a1ba878159a6050f2bbfc0e2 (diff) | |
Merge tag 'arm-vfp-refactor-for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux into devel-stabledevel-stable
Refactor VFP support code and reimplement in C
The VFP related changes to permit kernel mode NEON in softirq context
resulted in some issues regarding en/disabling of sofirqs from asm code,
and this made it clear that it would be better to handle more of it from
C code.
Given that we already have infrastructure that associates undefined
instruction exceptions with handler code based on value/mask pairs, we
can easily move the dispatch of VFP and NEON instructions to C code once
we reimplement the actual VFP support routine (which reasons about how
to deal with the exception and whether any emulation is needed) in C
code first.
With those out of the way, we can drop the partial decoding logic in asm
that reasons about which ISA is being used by user space, as the
remaining cases are all 32-bit ARM only. This leaves a FPE specific
routine with some iWMMXT logic that is easily duplicated in C as well,
allowing us to move the FPE asm code into the FPE asm source file, and
out of the shared entry code.
Diffstat (limited to 'drivers/video/fbdev/platinumfb.c')
| -rw-r--r-- | drivers/video/fbdev/platinumfb.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/video/fbdev/platinumfb.c b/drivers/video/fbdev/platinumfb.c index 82f019f0a0d6..f8283fcd5edb 100644 --- a/drivers/video/fbdev/platinumfb.c +++ b/drivers/video/fbdev/platinumfb.c @@ -52,17 +52,17 @@ struct fb_info_platinum { __u8 red, green, blue; } palette[256]; u32 pseudo_palette[16]; - + volatile struct cmap_regs __iomem *cmap_regs; unsigned long cmap_regs_phys; - + volatile struct platinum_regs __iomem *platinum_regs; unsigned long platinum_regs_phys; - + __u8 __iomem *frame_buffer; volatile __u8 __iomem *base_frame_buffer; unsigned long frame_buffer_phys; - + unsigned long total_vram; int clktype; int dactype; @@ -133,7 +133,7 @@ static int platinumfb_set_par (struct fb_info *info) platinum_set_hardware(pinfo); init = platinum_reg_init[pinfo->vmode-1]; - + if ((pinfo->vmode == VMODE_832_624_75) && (pinfo->cmode > CMODE_8)) offset = 0x10; @@ -214,7 +214,7 @@ static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, break; } } - + return 0; } @@ -269,7 +269,7 @@ static void platinum_set_hardware(struct fb_info_platinum *pinfo) struct platinum_regvals *init; int i; int vmode, cmode; - + vmode = pinfo->vmode; cmode = pinfo->cmode; @@ -436,7 +436,7 @@ static int read_platinum_sense(struct fb_info_platinum *info) * This routine takes a user-supplied var, and picks the best vmode/cmode from it. * It also updates the var structure to the actual mode data obtained */ -static int platinum_var_to_par(struct fb_var_screeninfo *var, +static int platinum_var_to_par(struct fb_var_screeninfo *var, struct fb_info_platinum *pinfo, int check_only) { @@ -478,12 +478,12 @@ static int platinum_var_to_par(struct fb_var_screeninfo *var, pinfo->yoffset = 0; pinfo->vxres = pinfo->xres; pinfo->vyres = pinfo->yres; - + return 0; } -/* +/* * Parse user specified options (`video=platinumfb:') */ static int __init platinumfb_setup(char *options) @@ -624,7 +624,7 @@ static int platinumfb_probe(struct platform_device* odev) break; } dev_set_drvdata(&odev->dev, info); - + rc = platinum_init_fb(info); if (rc != 0) { iounmap(pinfo->frame_buffer); @@ -640,9 +640,9 @@ static void platinumfb_remove(struct platform_device* odev) { struct fb_info *info = dev_get_drvdata(&odev->dev); struct fb_info_platinum *pinfo = info->par; - + unregister_framebuffer (info); - + /* Unmap frame buffer and registers */ iounmap(pinfo->frame_buffer); iounmap(pinfo->platinum_regs); @@ -656,7 +656,7 @@ static void platinumfb_remove(struct platform_device* odev) framebuffer_release(info); } -static struct of_device_id platinumfb_match[] = +static struct of_device_id platinumfb_match[] = { { .name = "platinum", @@ -664,7 +664,7 @@ static struct of_device_id platinumfb_match[] = {}, }; -static struct platform_driver platinum_driver = +static struct platform_driver platinum_driver = { .driver = { .name = "platinumfb", |