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drm/bochs: use simple display pipe 

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190410074828.10296-1-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2019-04-10 09:48:28 +02:00
parent 5c5373b51b
commit 669105a74a
2 changed files with 53 additions and 131 deletions
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4
drivers/gpu/drm/bochs/bochs.h
View File

@ -7,6 +7,7 @@
#include <drm/drm_crtc_helper.h> #include <drm/drm_crtc_helper.h>
#include <drm/drm_encoder.h> #include <drm/drm_encoder.h>
#include <drm/drm_fb_helper.h> #include <drm/drm_fb_helper.h>
#include <drm/drm_simple_kms_helper.h>
#include <drm/drm_gem.h> #include <drm/drm_gem.h>
@ -70,8 +71,7 @@ struct bochs_device {
/* drm */ /* drm */
struct drm_device *dev; struct drm_device *dev;
struct drm_crtc crtc; struct drm_simple_display_pipe pipe;
struct drm_encoder encoder;
struct drm_connector connector; struct drm_connector connector;
/* ttm */ /* ttm */

174
drivers/gpu/drm/bochs/bochs_kms.c
View File

@ -22,75 +22,54 @@ MODULE_PARM_DESC(defy, "default y resolution");
/* ---------------------------------------------------------------------- */ /* ---------------------------------------------------------------------- */
static void bochs_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct bochs_device *bochs =
container_of(crtc, struct bochs_device, crtc);
bochs_hw_setmode(bochs, &crtc->mode);
}
static void bochs_crtc_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
}
static void bochs_crtc_atomic_flush(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct drm_device *dev = crtc->dev;
struct drm_pending_vblank_event *event;
if (crtc->state && crtc->state->event) {
unsigned long irqflags;
spin_lock_irqsave(&dev->event_lock, irqflags);
event = crtc->state->event;
crtc->state->event = NULL;
drm_crtc_send_vblank_event(crtc, event);
spin_unlock_irqrestore(&dev->event_lock, irqflags);
}
}
/* These provide the minimum set of functions required to handle a CRTC */
static const struct drm_crtc_funcs bochs_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.destroy = drm_crtc_cleanup,
.page_flip = drm_atomic_helper_page_flip,
.reset = drm_atomic_helper_crtc_reset,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
};
static const struct drm_crtc_helper_funcs bochs_helper_funcs = {
.mode_set_nofb = bochs_crtc_mode_set_nofb,
.atomic_enable = bochs_crtc_atomic_enable,
.atomic_flush = bochs_crtc_atomic_flush,
};
static const uint32_t bochs_formats[] = { static const uint32_t bochs_formats[] = {
DRM_FORMAT_XRGB8888, DRM_FORMAT_XRGB8888,
DRM_FORMAT_BGRX8888, DRM_FORMAT_BGRX8888,
}; };
static void bochs_plane_atomic_update(struct drm_plane *plane, static void bochs_plane_update(struct bochs_device *bochs,
struct drm_plane_state *old_state) struct drm_plane_state *state)
{ {
struct bochs_device *bochs = plane->dev->dev_private;
struct bochs_bo *bo; struct bochs_bo *bo;
if (!plane->state->fb) if (!state->fb || !bochs->stride)
return; return;
bo = gem_to_bochs_bo(plane->state->fb->obj[0]);
bo = gem_to_bochs_bo(state->fb->obj[0]);
bochs_hw_setbase(bochs, bochs_hw_setbase(bochs,
plane->state->crtc_x, state->crtc_x,
plane->state->crtc_y, state->crtc_y,
bo->bo.offset); bo->bo.offset);
bochs_hw_setformat(bochs, plane->state->fb->format); bochs_hw_setformat(bochs, state->fb->format);
} }
static int bochs_plane_prepare_fb(struct drm_plane *plane, static void bochs_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
struct bochs_device *bochs = pipe->crtc.dev->dev_private;
bochs_hw_setmode(bochs, &crtc_state->mode);
bochs_plane_update(bochs, plane_state);
}
static void bochs_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
struct bochs_device *bochs = pipe->crtc.dev->dev_private;
struct drm_crtc *crtc = &pipe->crtc;
bochs_plane_update(bochs, pipe->plane.state);
if (crtc->state->event) {
spin_lock_irq(&crtc->dev->event_lock);
drm_crtc_send_vblank_event(crtc, crtc->state->event);
crtc->state->event = NULL;
spin_unlock_irq(&crtc->dev->event_lock);
}
}
static int bochs_pipe_prepare_fb(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *new_state) struct drm_plane_state *new_state)
{ {
struct bochs_bo *bo; struct bochs_bo *bo;
@ -101,7 +80,7 @@ static int bochs_plane_prepare_fb(struct drm_plane *plane,
return bochs_bo_pin(bo, TTM_PL_FLAG_VRAM); return bochs_bo_pin(bo, TTM_PL_FLAG_VRAM);
} }
static void bochs_plane_cleanup_fb(struct drm_plane *plane, static void bochs_pipe_cleanup_fb(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state) struct drm_plane_state *old_state)
{ {
struct bochs_bo *bo; struct bochs_bo *bo;
@ -112,73 +91,13 @@ static void bochs_plane_cleanup_fb(struct drm_plane *plane,
bochs_bo_unpin(bo); bochs_bo_unpin(bo);
} }
static const struct drm_plane_helper_funcs bochs_plane_helper_funcs = { static const struct drm_simple_display_pipe_funcs bochs_pipe_funcs = {
.atomic_update = bochs_plane_atomic_update, .enable = bochs_pipe_enable,
.prepare_fb = bochs_plane_prepare_fb, .update = bochs_pipe_update,
.cleanup_fb = bochs_plane_cleanup_fb, .prepare_fb = bochs_pipe_prepare_fb,
.cleanup_fb = bochs_pipe_cleanup_fb,
}; };
static const struct drm_plane_funcs bochs_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_primary_helper_destroy,
.reset = drm_atomic_helper_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static struct drm_plane *bochs_primary_plane(struct drm_device *dev)
{
struct drm_plane *primary;
int ret;
primary = kzalloc(sizeof(*primary), GFP_KERNEL);
if (primary == NULL) {
DRM_DEBUG_KMS("Failed to allocate primary plane\n");
return NULL;
}
ret = drm_universal_plane_init(dev, primary, 0,
&bochs_plane_funcs,
bochs_formats,
ARRAY_SIZE(bochs_formats),
NULL,
DRM_PLANE_TYPE_PRIMARY, NULL);
if (ret) {
kfree(primary);
return NULL;
}
drm_plane_helper_add(primary, &bochs_plane_helper_funcs);
return primary;
}
static void bochs_crtc_init(struct drm_device *dev)
{
struct bochs_device *bochs = dev->dev_private;
struct drm_crtc *crtc = &bochs->crtc;
struct drm_plane *primary = bochs_primary_plane(dev);
drm_crtc_init_with_planes(dev, crtc, primary, NULL,
&bochs_crtc_funcs, NULL);
drm_crtc_helper_add(crtc, &bochs_helper_funcs);
}
static const struct drm_encoder_funcs bochs_encoder_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static void bochs_encoder_init(struct drm_device *dev)
{
struct bochs_device *bochs = dev->dev_private;
struct drm_encoder *encoder = &bochs->encoder;
encoder->possible_crtcs = 0x1;
drm_encoder_init(dev, encoder, &bochs_encoder_encoder_funcs,
DRM_MODE_ENCODER_DAC, NULL);
}
static int bochs_connector_get_modes(struct drm_connector *connector) static int bochs_connector_get_modes(struct drm_connector *connector)
{ {
struct bochs_device *bochs = struct bochs_device *bochs =
@ -278,11 +197,14 @@ int bochs_kms_init(struct bochs_device *bochs)
bochs->dev->mode_config.funcs = &bochs_mode_funcs; bochs->dev->mode_config.funcs = &bochs_mode_funcs;
bochs_crtc_init(bochs->dev);
bochs_encoder_init(bochs->dev);
bochs_connector_init(bochs->dev); bochs_connector_init(bochs->dev);
drm_connector_attach_encoder(&bochs->connector, drm_simple_display_pipe_init(bochs->dev,
&bochs->encoder); &bochs->pipe,
&bochs_pipe_funcs,
bochs_formats,
ARRAY_SIZE(bochs_formats),
NULL,
&bochs->connector);
drm_mode_config_reset(bochs->dev); drm_mode_config_reset(bochs->dev);