diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2013-06-14 20:52:52 +0200 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2013-08-09 23:17:49 +0200 |
| commit | 9e2d2de9e8107643ba50debc475fc966d3f77364 (patch) | |
| tree | 2acac9f1f553f637c2770b13e34f9300a429a311 /drivers/gpu/drm | |
| parent | ef2d84bec6a02c4536cab1e0a8f13792ad86a7bc (diff) | |
drm/rcar-du: Fix buffer pitch alignment for R8A7790 DU
The R8A7790 DU seems to require a 128 bytes pitch alignment, even though
the documentation only mentions a 16 pixels alignement as for the
R8A7779 DU. Make this configurable through a device flag.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_kms.c | 17 |
3 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 381dbad05e5..3cd98158926 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -221,7 +221,7 @@ static const struct rcar_du_device_info rcar_du_r8a7779_info = { }; static const struct rcar_du_device_info rcar_du_r8a7790_info = { - .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK, + .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK | RCAR_DU_FEATURE_ALIGN_128B, }; static const struct platform_device_id rcar_du_id_table[] = { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 5b57a2f9b52..072e28e0948 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -26,6 +26,7 @@ struct drm_device; struct rcar_du_device; #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */ +#define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */ /* * struct rcar_du_device_info - DU model-specific information diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 845bcb38486..418d902bc88 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -111,11 +111,18 @@ const struct rcar_du_format_info *rcar_du_format_info(u32 fourcc) int rcar_du_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args) { + struct rcar_du_device *rcdu = dev->dev_private; unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); unsigned int align; - /* The pitch must be aligned to a 16 pixels boundary. */ - align = 16 * args->bpp / 8; + /* The R8A7779 DU requires a 16 pixels pitch alignment as documented, + * but the R8A7790 DU seems to require a 128 bytes pitch alignment. + */ + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_ALIGN_128B)) + align = 128; + else + align = 16 * args->bpp / 8; + args->pitch = roundup(max(args->pitch, min_pitch), align); return drm_gem_cma_dumb_create(file, dev, args); @@ -125,6 +132,7 @@ static struct drm_framebuffer * rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd) { + struct rcar_du_device *rcdu = dev->dev_private; const struct rcar_du_format_info *format; unsigned int align; @@ -135,7 +143,10 @@ rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, return ERR_PTR(-EINVAL); } - align = 16 * format->bpp / 8; + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_ALIGN_128B)) + align = 128; + else + align = 16 * format->bpp / 8; if (mode_cmd->pitches[0] & (align - 1) || mode_cmd->pitches[0] >= 8192) { |