The vc4_bo_dumb_create() both fixes up the allocation arguments to match the hardware constraints and actually performs the allocation.
Since we're going to introduce a new function that uses a different allocator, let's split the arguments fixup to a separate function we will be able to reuse.
Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_bo.c | 9 +++------ drivers/gpu/drm/vc4/vc4_drv.c | 13 +++++++++++++ drivers/gpu/drm/vc4/vc4_drv.h | 1 + 3 files changed, 17 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c index 6d505da6b6cf..3ca16d682fc0 100644 --- a/drivers/gpu/drm/vc4/vc4_bo.c +++ b/drivers/gpu/drm/vc4/vc4_bo.c @@ -475,15 +475,12 @@ int vc4_bo_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args) { - int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); struct vc4_bo *bo = NULL; int ret;
- if (args->pitch < min_pitch) - args->pitch = min_pitch; - - if (args->size < args->pitch * args->height) - args->size = args->pitch * args->height; + ret = vc4_dumb_fixup_args(args); + if (ret) + return ret;
bo = vc4_bo_create(dev, args->size, false, VC4_BO_TYPE_DUMB); if (IS_ERR(bo)) diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 5f39e40ef238..eb08940028d3 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -63,6 +63,19 @@ void __iomem *vc4_ioremap_regs(struct platform_device *pdev, int index) return map; }
+int vc4_dumb_fixup_args(struct drm_mode_create_dumb *args) +{ + int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); + + if (args->pitch < min_pitch) + args->pitch = min_pitch; + + if (args->size < args->pitch * args->height) + args->size = args->pitch * args->height; + + return 0; +} + static int vc4_get_param_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 37c93654480f..9c324c12c410 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -885,6 +885,7 @@ static inline void vc4_debugfs_add_regset32(struct drm_device *drm,
/* vc4_drv.c */ void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index); +int vc4_dumb_fixup_args(struct drm_mode_create_dumb *args);
/* vc4_dpi.c */ extern struct platform_driver vc4_dpi_driver;