diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 4e474bcf4c22..7cafd5612f71 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -52,6 +52,7 @@ #include "i915_trace.h" #include "i915_vgpu.h" +#include "intel_display.h" #include "intel_drv.h" #include "intel_frontbuffer.h" #include "intel_pm.h" @@ -560,8 +561,31 @@ i915_gem_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args) { + int cpp = DIV_ROUND_UP(args->bpp, 8); + u32 format; + + switch (cpp) { + case 1: + format = DRM_FORMAT_C8; + break; + case 2: + format = DRM_FORMAT_RGB565; + break; + case 4: + format = DRM_FORMAT_XRGB8888; + break; + default: + return -EINVAL; + } + /* have to work out size/pitch and return them */ - args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 64); + args->pitch = ALIGN(args->width * cpp, 64); + + /* align stride to page size so that we can remap */ + if (args->pitch > intel_plane_fb_max_stride(to_i915(dev), format, + DRM_FORMAT_MOD_LINEAR)) + args->pitch = ALIGN(args->pitch, 4096); + args->size = args->pitch * args->height; return i915_gem_create(file, to_i915(dev), &args->size, &args->handle); |