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path: root/drivers/gpu/drm/omapdrm/omap_fb.c
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Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_fb.c')
-rw-r--r--drivers/gpu/drm/omapdrm/omap_fb.c176
1 files changed, 90 insertions, 86 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c b/drivers/gpu/drm/omapdrm/omap_fb.c
index 5f3337f1e9aa..29dc677dd4d3 100644
--- a/drivers/gpu/drm/omapdrm/omap_fb.c
+++ b/drivers/gpu/drm/omapdrm/omap_fb.c
@@ -29,37 +29,30 @@
* framebuffer funcs
*/
-/* per-format info: */
-struct format {
+/* DSS to DRM formats mapping */
+static const struct {
enum omap_color_mode dss_format;
uint32_t pixel_format;
- struct {
- int stride_bpp; /* this times width is stride */
- int sub_y; /* sub-sample in y dimension */
- } planes[4];
- bool yuv;
-};
-
-static const struct format formats[] = {
+} formats[] = {
/* 16bpp [A]RGB: */
- { OMAP_DSS_COLOR_RGB16, DRM_FORMAT_RGB565, {{2, 1}}, false }, /* RGB16-565 */
- { OMAP_DSS_COLOR_RGB12U, DRM_FORMAT_RGBX4444, {{2, 1}}, false }, /* RGB12x-4444 */
- { OMAP_DSS_COLOR_RGBX16, DRM_FORMAT_XRGB4444, {{2, 1}}, false }, /* xRGB12-4444 */
- { OMAP_DSS_COLOR_RGBA16, DRM_FORMAT_RGBA4444, {{2, 1}}, false }, /* RGBA12-4444 */
- { OMAP_DSS_COLOR_ARGB16, DRM_FORMAT_ARGB4444, {{2, 1}}, false }, /* ARGB16-4444 */
- { OMAP_DSS_COLOR_XRGB16_1555, DRM_FORMAT_XRGB1555, {{2, 1}}, false }, /* xRGB15-1555 */
- { OMAP_DSS_COLOR_ARGB16_1555, DRM_FORMAT_ARGB1555, {{2, 1}}, false }, /* ARGB16-1555 */
+ { OMAP_DSS_COLOR_RGB16, DRM_FORMAT_RGB565 }, /* RGB16-565 */
+ { OMAP_DSS_COLOR_RGB12U, DRM_FORMAT_RGBX4444 }, /* RGB12x-4444 */
+ { OMAP_DSS_COLOR_RGBX16, DRM_FORMAT_XRGB4444 }, /* xRGB12-4444 */
+ { OMAP_DSS_COLOR_RGBA16, DRM_FORMAT_RGBA4444 }, /* RGBA12-4444 */
+ { OMAP_DSS_COLOR_ARGB16, DRM_FORMAT_ARGB4444 }, /* ARGB16-4444 */
+ { OMAP_DSS_COLOR_XRGB16_1555, DRM_FORMAT_XRGB1555 }, /* xRGB15-1555 */
+ { OMAP_DSS_COLOR_ARGB16_1555, DRM_FORMAT_ARGB1555 }, /* ARGB16-1555 */
/* 24bpp RGB: */
- { OMAP_DSS_COLOR_RGB24P, DRM_FORMAT_RGB888, {{3, 1}}, false }, /* RGB24-888 */
+ { OMAP_DSS_COLOR_RGB24P, DRM_FORMAT_RGB888 }, /* RGB24-888 */
/* 32bpp [A]RGB: */
- { OMAP_DSS_COLOR_RGBX32, DRM_FORMAT_RGBX8888, {{4, 1}}, false }, /* RGBx24-8888 */
- { OMAP_DSS_COLOR_RGB24U, DRM_FORMAT_XRGB8888, {{4, 1}}, false }, /* xRGB24-8888 */
- { OMAP_DSS_COLOR_RGBA32, DRM_FORMAT_RGBA8888, {{4, 1}}, false }, /* RGBA32-8888 */
- { OMAP_DSS_COLOR_ARGB32, DRM_FORMAT_ARGB8888, {{4, 1}}, false }, /* ARGB32-8888 */
+ { OMAP_DSS_COLOR_RGBX32, DRM_FORMAT_RGBX8888 }, /* RGBx24-8888 */
+ { OMAP_DSS_COLOR_RGB24U, DRM_FORMAT_XRGB8888 }, /* xRGB24-8888 */
+ { OMAP_DSS_COLOR_RGBA32, DRM_FORMAT_RGBA8888 }, /* RGBA32-8888 */
+ { OMAP_DSS_COLOR_ARGB32, DRM_FORMAT_ARGB8888 }, /* ARGB32-8888 */
/* YUV: */
- { OMAP_DSS_COLOR_NV12, DRM_FORMAT_NV12, {{1, 1}, {1, 2}}, true },
- { OMAP_DSS_COLOR_YUV2, DRM_FORMAT_YUYV, {{2, 1}}, true },
- { OMAP_DSS_COLOR_UYVY, DRM_FORMAT_UYVY, {{2, 1}}, true },
+ { OMAP_DSS_COLOR_NV12, DRM_FORMAT_NV12 },
+ { OMAP_DSS_COLOR_YUV2, DRM_FORMAT_YUYV },
+ { OMAP_DSS_COLOR_UYVY, DRM_FORMAT_UYVY },
};
/* convert from overlay's pixel formats bitmask to an array of fourcc's */
@@ -89,8 +82,9 @@ struct plane {
struct omap_framebuffer {
struct drm_framebuffer base;
int pin_count;
- const struct format *format;
- struct plane planes[4];
+ const struct drm_format_info *format;
+ enum omap_color_mode dss_format;
+ struct plane planes[2];
/* lock for pinning (pin_count and planes.paddr) */
struct mutex lock;
};
@@ -107,7 +101,7 @@ static int omap_framebuffer_create_handle(struct drm_framebuffer *fb,
static void omap_framebuffer_destroy(struct drm_framebuffer *fb)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
- int i, n = drm_format_num_planes(fb->pixel_format);
+ int i, n = fb->format->num_planes;
DBG("destroy: FB ID: %d (%p)", fb->base.id, fb);
@@ -128,13 +122,13 @@ static const struct drm_framebuffer_funcs omap_framebuffer_funcs = {
};
static uint32_t get_linear_addr(struct plane *plane,
- const struct format *format, int n, int x, int y)
+ const struct drm_format_info *format, int n, int x, int y)
{
uint32_t offset;
- offset = plane->offset +
- (x * format->planes[n].stride_bpp) +
- (y * plane->pitch / format->planes[n].sub_y);
+ offset = plane->offset
+ + (x * format->cpp[n] / (n == 0 ? 1 : format->hsub))
+ + (y * plane->pitch / (n == 0 ? 1 : format->vsub));
return plane->paddr + offset;
}
@@ -153,11 +147,11 @@ void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
struct omap_drm_window *win, struct omap_overlay_info *info)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
- const struct format *format = omap_fb->format;
+ const struct drm_format_info *format = omap_fb->format;
struct plane *plane = &omap_fb->planes[0];
uint32_t x, y, orient = 0;
- info->color_mode = format->dss_format;
+ info->color_mode = omap_fb->dss_format;
info->pos_x = win->crtc_x;
info->pos_y = win->crtc_y;
@@ -231,9 +225,9 @@ void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
}
/* convert to pixels: */
- info->screen_width /= format->planes[0].stride_bpp;
+ info->screen_width /= format->cpp[0];
- if (format->dss_format == OMAP_DSS_COLOR_NV12) {
+ if (omap_fb->dss_format == OMAP_DSS_COLOR_NV12) {
plane = &omap_fb->planes[1];
if (info->rotation_type == OMAP_DSS_ROT_TILER) {
@@ -252,7 +246,7 @@ void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
int omap_framebuffer_pin(struct drm_framebuffer *fb)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
- int ret, i, n = drm_format_num_planes(fb->pixel_format);
+ int ret, i, n = fb->format->num_planes;
mutex_lock(&omap_fb->lock);
@@ -292,7 +286,7 @@ fail:
void omap_framebuffer_unpin(struct drm_framebuffer *fb)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
- int i, n = drm_format_num_planes(fb->pixel_format);
+ int i, n = fb->format->num_planes;
mutex_lock(&omap_fb->lock);
@@ -343,10 +337,10 @@ struct drm_connector *omap_framebuffer_get_next_connector(
void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
- int i, n = drm_format_num_planes(fb->pixel_format);
+ int i, n = fb->format->num_planes;
seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height,
- (char *)&fb->pixel_format);
+ (char *)&fb->format->format);
for (i = 0; i < n; i++) {
struct plane *plane = &omap_fb->planes[i];
@@ -360,47 +354,58 @@ void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd)
{
+ unsigned int num_planes = drm_format_num_planes(mode_cmd->pixel_format);
struct drm_gem_object *bos[4];
struct drm_framebuffer *fb;
- int ret;
+ int i;
- ret = objects_lookup(file, mode_cmd->pixel_format,
- bos, mode_cmd->handles);
- if (ret)
- return ERR_PTR(ret);
+ for (i = 0; i < num_planes; i++) {
+ bos[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]);
+ if (!bos[i]) {
+ fb = ERR_PTR(-ENOENT);
+ goto error;
+ }
+ }
fb = omap_framebuffer_init(dev, mode_cmd, bos);
- if (IS_ERR(fb)) {
- int i, n = drm_format_num_planes(mode_cmd->pixel_format);
- for (i = 0; i < n; i++)
- drm_gem_object_unreference_unlocked(bos[i]);
- return fb;
- }
+ if (IS_ERR(fb))
+ goto error;
+
+ return fb;
+
+error:
+ while (--i > 0)
+ drm_gem_object_unreference_unlocked(bos[i]);
+
return fb;
}
struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
{
+ const struct drm_format_info *format = NULL;
struct omap_framebuffer *omap_fb = NULL;
struct drm_framebuffer *fb = NULL;
- const struct format *format = NULL;
- int ret, i, n = drm_format_num_planes(mode_cmd->pixel_format);
+ enum omap_color_mode dss_format = 0;
+ unsigned int pitch = mode_cmd->pitches[0];
+ int ret, i;
DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)",
dev, mode_cmd, mode_cmd->width, mode_cmd->height,
(char *)&mode_cmd->pixel_format);
+ format = drm_format_info(mode_cmd->pixel_format);
+
for (i = 0; i < ARRAY_SIZE(formats); i++) {
if (formats[i].pixel_format == mode_cmd->pixel_format) {
- format = &formats[i];
+ dss_format = formats[i].dss_format;
break;
}
}
- if (!format) {
- dev_err(dev->dev, "unsupported pixel format: %4.4s\n",
- (char *)&mode_cmd->pixel_format);
+ if (!format || !dss_format) {
+ dev_dbg(dev->dev, "unsupported pixel format: %4.4s\n",
+ (char *)&mode_cmd->pixel_format);
ret = -EINVAL;
goto fail;
}
@@ -413,40 +418,39 @@ struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
fb = &omap_fb->base;
omap_fb->format = format;
+ omap_fb->dss_format = dss_format;
mutex_init(&omap_fb->lock);
- for (i = 0; i < n; i++) {
- struct plane *plane = &omap_fb->planes[i];
- int size, pitch = mode_cmd->pitches[i];
-
- if (pitch < (mode_cmd->width * format->planes[i].stride_bpp)) {
- dev_err(dev->dev, "provided buffer pitch is too small! %d < %d\n",
- pitch, mode_cmd->width * format->planes[i].stride_bpp);
- ret = -EINVAL;
- goto fail;
- }
+ /*
+ * The code below assumes that no format use more than two planes, and
+ * that the two planes of multiplane formats need the same number of
+ * bytes per pixel.
+ */
+ if (format->num_planes == 2 && pitch != mode_cmd->pitches[1]) {
+ dev_dbg(dev->dev, "pitches differ between planes 0 and 1\n");
+ ret = -EINVAL;
+ goto fail;
+ }
- if (pitch % format->planes[i].stride_bpp != 0) {
- dev_err(dev->dev,
- "buffer pitch (%d bytes) is not a multiple of pixel size (%d bytes)\n",
- pitch, format->planes[i].stride_bpp);
- ret = -EINVAL;
- goto fail;
- }
+ if (pitch % format->cpp[0]) {
+ dev_dbg(dev->dev,
+ "buffer pitch (%u bytes) is not a multiple of pixel size (%u bytes)\n",
+ pitch, format->cpp[0]);
+ ret = -EINVAL;
+ goto fail;
+ }
- size = pitch * mode_cmd->height / format->planes[i].sub_y;
+ for (i = 0; i < format->num_planes; i++) {
+ struct plane *plane = &omap_fb->planes[i];
+ unsigned int vsub = i == 0 ? 1 : format->vsub;
+ unsigned int size;
- if (size > (omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i])) {
- dev_err(dev->dev, "provided buffer object is too small! %d < %d\n",
- bos[i]->size - mode_cmd->offsets[i], size);
- ret = -EINVAL;
- goto fail;
- }
+ size = pitch * mode_cmd->height / vsub;
- if (i > 0 && pitch != mode_cmd->pitches[i - 1]) {
- dev_err(dev->dev,
- "pitches are not the same between framebuffer planes %d != %d\n",
- pitch, mode_cmd->pitches[i - 1]);
+ if (size > omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i]) {
+ dev_dbg(dev->dev,
+ "provided buffer object is too small! %d < %d\n",
+ bos[i]->size - mode_cmd->offsets[i], size);
ret = -EINVAL;
goto fail;
}
@@ -457,7 +461,7 @@ struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
plane->paddr = 0;
}
- drm_helper_mode_fill_fb_struct(fb, mode_cmd);
+ drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs);
if (ret) {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-04 13:49:27 +0300