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f4510a2752
linux_dsm_epyc7002/drivers/gpu/drm/omapdrm/omap_fb.c
Matt Roper f4510a2752 drm: Replace crtc fb with primary plane fb (v3) 
Now that CRTC's have a primary plane, there's no need to track the
framebuffer in the CRTC.  Replace all references to the CRTC fb with the
primary plane's fb.

This patch was generated by the Coccinelle semantic patching tool using
the following rules:

        @@ struct drm_crtc C; @@
        -   (C).fb
        +   C.primary->fb

        @@ struct drm_crtc *C; @@
        -   (C)->fb
        +   C->primary->fb

v3: Generate patch via coccinelle.  Actual removal of crtc->fb has been
    moved to a subsequent patch.

v2: Fixup several lingering crtc->fb instances that were missed in the
    first patch iteration.  [Rob Clark]

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:28 -04:00

470 lines
13 KiB
C
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/*
* drivers/gpu/drm/omapdrm/omap_fb.c
*
* Copyright (C) 2011 Texas Instruments
* Author: Rob Clark <rob@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "omap_drv.h"
#include "omap_dmm_tiler.h"
#include "drm_crtc.h"
#include "drm_crtc_helper.h"
/*
* framebuffer funcs
*/
/* per-format info: */
struct format {
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[] = {
/* 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 */
/* 24bpp RGB: */
{ OMAP_DSS_COLOR_RGB24P, DRM_FORMAT_RGB888, {{3, 1}}, false }, /* 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 */
/* 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 },
};
/* convert from overlay's pixel formats bitmask to an array of fourcc's */
uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
uint32_t max_formats, enum omap_color_mode supported_modes)
{
uint32_t nformats = 0;
int i = 0;
for (i = 0; i < ARRAY_SIZE(formats) && nformats < max_formats; i++)
if (formats[i].dss_format & supported_modes)
pixel_formats[nformats++] = formats[i].pixel_format;
return nformats;
}
/* per-plane info for the fb: */
struct plane {
struct drm_gem_object *bo;
uint32_t pitch;
uint32_t offset;
dma_addr_t paddr;
};
#define to_omap_framebuffer(x) container_of(x, struct omap_framebuffer, base)
struct omap_framebuffer {
struct drm_framebuffer base;
const struct format *format;
struct plane planes[4];
};
static int omap_framebuffer_create_handle(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned int *handle)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
return drm_gem_handle_create(file_priv,
omap_fb->planes[0].bo, handle);
}
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);
DBG("destroy: FB ID: %d (%p)", fb->base.id, fb);
drm_framebuffer_cleanup(fb);
for (i = 0; i < n; i++) {
struct plane *plane = &omap_fb->planes[i];
if (plane->bo)
drm_gem_object_unreference_unlocked(plane->bo);
}
kfree(omap_fb);
}
static int omap_framebuffer_dirty(struct drm_framebuffer *fb,
struct drm_file *file_priv, unsigned flags, unsigned color,
struct drm_clip_rect *clips, unsigned num_clips)
{
int i;
drm_modeset_lock_all(fb->dev);
for (i = 0; i < num_clips; i++) {
omap_framebuffer_flush(fb, clips[i].x1, clips[i].y1,
clips[i].x2 - clips[i].x1,
clips[i].y2 - clips[i].y1);
}
drm_modeset_unlock_all(fb->dev);
return 0;
}
static const struct drm_framebuffer_funcs omap_framebuffer_funcs = {
.create_handle = omap_framebuffer_create_handle,
.destroy = omap_framebuffer_destroy,
.dirty = omap_framebuffer_dirty,
};
static uint32_t get_linear_addr(struct plane *plane,
const struct format *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);
return plane->paddr + offset;
}
/* update ovl info for scanout, handles cases of multi-planar fb's, etc.
*/
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;
struct plane *plane = &omap_fb->planes[0];
uint32_t x, y, orient = 0;
info->color_mode = format->dss_format;
info->pos_x = win->crtc_x;
info->pos_y = win->crtc_y;
info->out_width = win->crtc_w;
info->out_height = win->crtc_h;
info->width = win->src_w;
info->height = win->src_h;
x = win->src_x;
y = win->src_y;
if (omap_gem_flags(plane->bo) & OMAP_BO_TILED) {
uint32_t w = win->src_w;
uint32_t h = win->src_h;
switch (win->rotation & 0xf) {
default:
dev_err(fb->dev->dev, "invalid rotation: %02x",
(uint32_t)win->rotation);
/* fallthru to default to no rotation */
case 0:
case BIT(DRM_ROTATE_0):
orient = 0;
break;
case BIT(DRM_ROTATE_90):
orient = MASK_XY_FLIP | MASK_X_INVERT;
break;
case BIT(DRM_ROTATE_180):
orient = MASK_X_INVERT | MASK_Y_INVERT;
break;
case BIT(DRM_ROTATE_270):
orient = MASK_XY_FLIP | MASK_Y_INVERT;
break;
}
if (win->rotation & BIT(DRM_REFLECT_X))
orient ^= MASK_X_INVERT;
if (win->rotation & BIT(DRM_REFLECT_Y))
orient ^= MASK_Y_INVERT;
/* adjust x,y offset for flip/invert: */
if (orient & MASK_XY_FLIP)
swap(w, h);
if (orient & MASK_Y_INVERT)
y += h - 1;
if (orient & MASK_X_INVERT)
x += w - 1;
omap_gem_rotated_paddr(plane->bo, orient, x, y, &info->paddr);
info->rotation_type = OMAP_DSS_ROT_TILER;
info->screen_width = omap_gem_tiled_stride(plane->bo, orient);
} else {
info->paddr = get_linear_addr(plane, format, 0, x, y);
info->rotation_type = OMAP_DSS_ROT_DMA;
info->screen_width = plane->pitch;
}
/* convert to pixels: */
info->screen_width /= format->planes[0].stride_bpp;
if (format->dss_format == OMAP_DSS_COLOR_NV12) {
plane = &omap_fb->planes[1];
if (info->rotation_type == OMAP_DSS_ROT_TILER) {
WARN_ON(!(omap_gem_flags(plane->bo) & OMAP_BO_TILED));
omap_gem_rotated_paddr(plane->bo, orient,
x/2, y/2, &info->p_uv_addr);
} else {
info->p_uv_addr = get_linear_addr(plane, format, 1, x, y);
}
} else {
info->p_uv_addr = 0;
}
}
/* pin, prepare for scanout: */
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);
for (i = 0; i < n; i++) {
struct plane *plane = &omap_fb->planes[i];
ret = omap_gem_get_paddr(plane->bo, &plane->paddr, true);
if (ret)
goto fail;
omap_gem_dma_sync(plane->bo, DMA_TO_DEVICE);
}
return 0;
fail:
for (i--; i >= 0; i--) {
struct plane *plane = &omap_fb->planes[i];
omap_gem_put_paddr(plane->bo);
plane->paddr = 0;
}
return ret;
}
/* unpin, no longer being scanned out: */
int omap_framebuffer_unpin(struct drm_framebuffer *fb)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
int ret, i, n = drm_format_num_planes(fb->pixel_format);
for (i = 0; i < n; i++) {
struct plane *plane = &omap_fb->planes[i];
ret = omap_gem_put_paddr(plane->bo);
if (ret)
goto fail;
plane->paddr = 0;
}
return 0;
fail:
return ret;
}
struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p)
{
struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
if (p >= drm_format_num_planes(fb->pixel_format))
return NULL;
return omap_fb->planes[p].bo;
}
/* iterate thru all the connectors, returning ones that are attached
* to the same fb..
*/
struct drm_connector *omap_framebuffer_get_next_connector(
struct drm_framebuffer *fb, struct drm_connector *from)
{
struct drm_device *dev = fb->dev;
struct list_head *connector_list = &dev->mode_config.connector_list;
struct drm_connector *connector = from;
if (!from)
return list_first_entry(connector_list, typeof(*from), head);
list_for_each_entry_from(connector, connector_list, head) {
if (connector != from) {
struct drm_encoder *encoder = connector->encoder;
struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;
if (crtc && crtc->primary->fb == fb)
return connector;
}
}
return NULL;
}
/* flush an area of the framebuffer (in case of manual update display that
* is not automatically flushed)
*/
void omap_framebuffer_flush(struct drm_framebuffer *fb,
int x, int y, int w, int h)
{
struct drm_connector *connector = NULL;
VERB("flush: %d,%d %dx%d, fb=%p", x, y, w, h, fb);
while ((connector = omap_framebuffer_get_next_connector(fb, connector))) {
/* only consider connectors that are part of a chain */
if (connector->encoder && connector->encoder->crtc) {
/* TODO: maybe this should propagate thru the crtc who
* could do the coordinate translation..
*/
struct drm_crtc *crtc = connector->encoder->crtc;
int cx = max(0, x - crtc->x);
int cy = max(0, y - crtc->y);
int cw = w + (x - crtc->x) - cx;
int ch = h + (y - crtc->y) - cy;
omap_connector_flush(connector, cx, cy, cw, ch);
}
}
}
#ifdef CONFIG_DEBUG_FS
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);
seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height,
(char *)&fb->pixel_format);
for (i = 0; i < n; i++) {
struct plane *plane = &omap_fb->planes[i];
seq_printf(m, " %d: offset=%d pitch=%d, obj: ",
i, plane->offset, plane->pitch);
omap_gem_describe(plane->bo, m);
}
}
#endif
struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_gem_object *bos[4];
struct drm_framebuffer *fb;
int ret;
ret = objects_lookup(dev, file, mode_cmd->pixel_format,
bos, mode_cmd->handles);
if (ret)
return ERR_PTR(ret);
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;
}
return fb;
}
struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
{
struct omap_framebuffer *omap_fb;
struct drm_framebuffer *fb = NULL;
const struct format *format = NULL;
int ret, i, n = drm_format_num_planes(mode_cmd->pixel_format);
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);
for (i = 0; i < ARRAY_SIZE(formats); i++) {
if (formats[i].pixel_format == mode_cmd->pixel_format) {
format = &formats[i];
break;
}
}
if (!format) {
dev_err(dev->dev, "unsupported pixel format: %4.4s\n",
(char *)&mode_cmd->pixel_format);
ret = -EINVAL;
goto fail;
}
omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL);
if (!omap_fb) {
ret = -ENOMEM;
goto fail;
}
fb = &omap_fb->base;
omap_fb->format = format;
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;
}
size = pitch * mode_cmd->height / format->planes[i].sub_y;
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;
}
plane->bo = bos[i];
plane->offset = mode_cmd->offsets[i];
plane->pitch = pitch;
plane->paddr = 0;
}
drm_helper_mode_fill_fb_struct(fb, mode_cmd);
ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs);
if (ret) {
dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
goto fail;
}
DBG("create: FB ID: %d (%p)", fb->base.id, fb);
return fb;
fail:
if (fb)
omap_framebuffer_destroy(fb);
return ERR_PTR(ret);
}
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