On Fri, Mar 28, 2014 at 10:45 AM, Christopher Friedt chrisfriedt@gmail.com wrote:
Previously, the vmwgfx_fb driver would allow users to call FBIOSET_VINFO, but it would not adjust the FINFO properly, resulting in distorted screen rendering. The patch corrects that behaviour.
See https://bugs.gentoo.org/show_bug.cgi?id=494794 for examples.
Just adding cc's of maintainer list.
Signed-off-by: Christopher Friedt chrisfriedt@gmail.com
drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c index ed5ce2a..021b522 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c @@ -147,7 +147,7 @@ static int vmw_fb_check_var(struct fb_var_screeninfo *var, }
if (!vmw_kms_validate_mode_vram(vmw_priv,
info->fix.line_length,
var->xres * var->bits_per_pixel/8, var->yoffset + var->yres)) { DRM_ERROR("Requested geom can not fit in framebuffer\n"); return -EINVAL;@@ -162,6 +162,8 @@ static int vmw_fb_set_par(struct fb_info *info) struct vmw_private *vmw_priv = par->vmw_priv; int ret;
info->fix.line_length = info->var.xres * info->var.bits_per_pixel/8;ret = vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres, info->fix.line_length, par->bpp, par->depth);@@ -177,6 +179,7 @@ static int vmw_fb_set_par(struct fb_info *info) vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, info->var.yoffset); vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, info->var.xres); vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, info->var.yres);
vmw_write(vmw_priv, SVGA_REG_BYTES_PER_LINE, info->fix.line_length); vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); }-- 1.8.3.2
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