Convert the primary plane as a whole to use its atomic state and the
transitional helpers. The CRTC is also switched to use the transitional
helpers for mode_set() and mode_set_base().
Signed-off-by: Russell King <rmk+ker...@armlinux.org.uk>
---
drivers/gpu/drm/armada/armada_crtc.c | 308 +++++++++++++++++------------------
drivers/gpu/drm/armada/armada_crtc.h | 8 +-
2 files changed, 157 insertions(+), 159 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_crtc.c
b/drivers/gpu/drm/armada/armada_crtc.c
index 735abdab9754..523e0e8c6962 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -325,38 +325,6 @@ armada_drm_crtc_alloc_plane_work(struct drm_plane *plane)
return work;
}
-static void armada_drm_crtc_finish_fb(struct armada_crtc *dcrtc,
- struct drm_framebuffer *fb, bool force)
-{
- struct armada_plane_work *work;
-
- if (!fb)
- return;
-
- if (force) {
- /* Display is disabled, so just drop the old fb */
- drm_framebuffer_put(fb);
- return;
- }
-
- work = armada_drm_crtc_alloc_plane_work(dcrtc->crtc.primary);
- if (work) {
- work->old_fb = fb;
-
- if (armada_drm_plane_work_queue(dcrtc, work) == 0)
- return;
-
- kfree(work);
- }
-
- /*
- * Oops - just drop the reference immediately and hope for
- * the best. The worst that will happen is the buffer gets
- * reused before it has finished being displayed.
- */
- drm_framebuffer_put(fb);
-}
-
static void armada_drm_vblank_off(struct armada_crtc *dcrtc)
{
/*
@@ -434,9 +402,6 @@ static void armada_drm_crtc_commit(struct drm_crtc *crtc)
dcrtc->dpms = DRM_MODE_DPMS_ON;
armada_drm_crtc_update(dcrtc);
drm_crtc_vblank_on(crtc);
-
- if (dcrtc->old_modeset_fb)
- armada_drm_crtc_finish_fb(dcrtc, dcrtc->old_modeset_fb, false);
}
/* The mode_config.mutex will be held for this call */
@@ -588,27 +553,16 @@ static uint32_t armada_drm_crtc_calculate_csc(struct
armada_crtc *dcrtc)
return val;
}
-static int armada_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
- struct drm_framebuffer *old_fb);
-
/* The mode_config.mutex will be held for this call */
-static int armada_drm_crtc_mode_set(struct drm_crtc *crtc,
- struct drm_display_mode *mode, struct drm_display_mode *adj,
- int x, int y, struct drm_framebuffer *old_fb)
+static void armada_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
+ struct drm_display_mode *adj = &crtc->state->adjusted_mode;
struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
struct armada_regs regs[17];
uint32_t lm, rm, tm, bm, val, sclk;
unsigned long flags;
unsigned i;
- bool interlaced;
-
- /* Take a reference on the old fb for armada_drm_crtc_commit() */
- if (old_fb)
- drm_framebuffer_get(old_fb);
- dcrtc->old_modeset_fb = old_fb;
-
- interlaced = !!(adj->flags & DRM_MODE_FLAG_INTERLACE);
+ bool interlaced = !!(adj->flags & DRM_MODE_FLAG_INTERLACE);
i = 0;
rm = adj->crtc_hsync_start - adj->crtc_hdisplay;
@@ -692,35 +646,6 @@ static int armada_drm_crtc_mode_set(struct drm_crtc *crtc,
armada_drm_crtc_update_regs(dcrtc, regs);
spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
-
- return armada_drm_crtc_mode_set_base(crtc, x, y, old_fb);
-}
-
-static int armada_drm_do_primary_update(struct drm_plane *plane,
- struct drm_plane_state *state, struct drm_framebuffer *old_fb);
-
-/* The mode_config.mutex will be held for this call */
-static int armada_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
- struct drm_framebuffer *old_fb)
-{
- struct drm_plane_state state = {
- .plane = crtc->primary,
- .crtc = crtc,
- .fb = crtc->primary->fb,
- .crtc_x = 0,
- .crtc_y = 0,
- .crtc_w = crtc->mode.hdisplay,
- .crtc_h = crtc->mode.vdisplay,
- .src_x = x << 16,
- .src_y = y << 16,
- .src_w = crtc->mode.hdisplay << 16,
- .src_h = crtc->mode.vdisplay << 16,
- .rotation = DRM_MODE_ROTATE_0,
- };
-
- armada_drm_do_primary_update(crtc->primary, &state, old_fb);
-
- return 0;
}
/* The mode_config.mutex will be held for this call */
@@ -732,14 +657,49 @@ static void armada_drm_crtc_disable(struct drm_crtc *crtc)
crtc->primary->funcs->disable_plane(crtc->primary, NULL);
}
+static void armada_drm_crtc_atomic_begin(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ struct armada_plane *dplane;
+
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+ /* Wait 100ms for any plane works to complete */
+ dplane = drm_to_armada_plane(crtc->primary);
+ if (WARN_ON(armada_drm_plane_work_wait(dplane, HZ / 10) == 0))
+ armada_drm_plane_work_cancel(dcrtc, dplane);
+
+ dcrtc->regs_idx = 0;
+ dcrtc->regs = dcrtc->atomic_regs;
+}
+
+static void armada_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ unsigned long flags;
+
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+ armada_reg_queue_end(dcrtc->regs, dcrtc->regs_idx);
+
+ spin_lock_irqsave(&dcrtc->irq_lock, flags);
+ armada_drm_crtc_update_regs(dcrtc, dcrtc->regs);
+ spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
+}
+
static const struct drm_crtc_helper_funcs armada_crtc_helper_funcs = {
.dpms = armada_drm_crtc_dpms,
.prepare = armada_drm_crtc_prepare,
.commit = armada_drm_crtc_commit,
.mode_fixup = armada_drm_crtc_mode_fixup,
- .mode_set = armada_drm_crtc_mode_set,
- .mode_set_base = armada_drm_crtc_mode_set_base,
+ .mode_set = drm_helper_crtc_mode_set,
+ .mode_set_nofb = armada_drm_crtc_mode_set_nofb,
+ .mode_set_base = drm_helper_crtc_mode_set_base,
.disable = armada_drm_crtc_disable,
+ .atomic_begin = armada_drm_crtc_atomic_begin,
+ .atomic_flush = armada_drm_crtc_atomic_flush,
};
static void armada_load_cursor_argb(void __iomem *base, uint32_t *pix,
@@ -1013,6 +973,12 @@ static int armada_drm_crtc_page_flip(struct drm_crtc
*crtc,
}
/*
+ * We are in transition to atomic modeset: update the atomic modeset
+ * state with the new framebuffer to keep the state consistent.
+ */
+ drm_framebuffer_assign(&dcrtc->crtc.primary->state->fb, fb);
+
+ /*
* Finally, if the display is blanked, we won't receive an
* interrupt, so complete it now.
*/
@@ -1072,16 +1038,66 @@ static void armada_drm_crtc_disable_vblank(struct
drm_crtc *crtc)
}
static const struct drm_crtc_funcs armada_crtc_funcs = {
+ .reset = drm_atomic_helper_crtc_reset,
.cursor_set = armada_drm_crtc_cursor_set,
.cursor_move = armada_drm_crtc_cursor_move,
.destroy = armada_drm_crtc_destroy,
.set_config = drm_crtc_helper_set_config,
.page_flip = armada_drm_crtc_page_flip,
.set_property = armada_drm_crtc_set_property,
+ .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
.enable_vblank = armada_drm_crtc_enable_vblank,
.disable_vblank = armada_drm_crtc_disable_vblank,
};
+static int armada_drm_plane_prepare_fb(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ DRM_DEBUG_KMS("[PLANE:%d:%s] [FB:%d]\n",
+ plane->base.id, plane->name,
+ state->fb ? state->fb->base.id : 0);
+
+ /*
+ * Take a reference on the new framebuffer - we want to
+ * hold on to it while the hardware is displaying it.
+ */
+ if (state->fb)
+ drm_framebuffer_get(state->fb);
+ return 0;
+}
+
+static void armada_drm_plane_cleanup_fb(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ DRM_DEBUG_KMS("[PLANE:%d:%s] [FB:%d]\n",
+ plane->base.id, plane->name,
+ old_state->fb ? old_state->fb->base.id : 0);
+
+ if (old_state->fb)
+ drm_framebuffer_put(old_state->fb);
+}
+
+static int armada_drm_plane_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ if (state->fb && !WARN_ON(!state->crtc)) {
+ struct drm_crtc *crtc = state->crtc;
+ struct drm_crtc_state crtc_state = {
+ .crtc = crtc,
+ .enable = crtc->enabled,
+ .mode = crtc->mode,
+ };
+
+ return drm_atomic_helper_check_plane_state(state, &crtc_state,
+ 0, INT_MAX,
+ true, false);
+ } else {
+ state->visible = false;
+ }
+ return 0;
+}
+
static unsigned int armada_drm_primary_update_state(
struct drm_plane_state *state, struct armada_regs *regs)
{
@@ -1134,94 +1150,70 @@ static unsigned int armada_drm_primary_update_state(
return idx;
}
-static int armada_drm_do_primary_update(struct drm_plane *plane,
- struct drm_plane_state *state, struct drm_framebuffer *old_fb)
+static void armada_drm_primary_plane_atomic_update(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
{
- struct armada_plane *dplane = drm_to_armada_plane(plane);
- struct armada_crtc *dcrtc = drm_to_armada_crtc(state->crtc);
- struct armada_plane_work *work;
- struct drm_crtc_state crtc_state = {
- .crtc = state->crtc,
- .enable = state->crtc->enabled,
- .mode = state->crtc->mode,
- };
- unsigned int idx;
- int ret;
+ struct drm_plane_state *state = plane->state;
+ struct armada_crtc *dcrtc;
+ struct armada_regs *regs;
- ret = drm_atomic_helper_check_plane_state(state, &crtc_state, 0,
- INT_MAX, true, false);
- if (ret)
- return ret;
+ DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
- work = &dplane->works[dplane->next_work];
- work->fn = armada_drm_crtc_complete_frame_work;
+ if (!state->fb || WARN_ON(!state->crtc))
+ return;
- if (old_fb != state->fb) {
- /*
- * Take a reference on the new framebuffer - we want to
- * hold on to it while the hardware is displaying it.
- */
- drm_framebuffer_reference(state->fb);
+ DRM_DEBUG_KMS("[PLANE:%d:%s] is on [CRTC:%d:%s] with [FB:%d] visible
%u->%u\n",
+ plane->base.id, plane->name,
+ state->crtc->base.id, state->crtc->name,
+ state->fb->base.id,
+ old_state->visible, state->visible);
- work->old_fb = old_fb;
- } else {
- work->old_fb = NULL;
- }
+ dcrtc = drm_to_armada_crtc(state->crtc);
+ regs = dcrtc->regs + dcrtc->regs_idx;
- idx = armada_drm_primary_update_state(state, work->regs);
- armada_reg_queue_end(work->regs, idx);
+ dcrtc->regs_idx += armada_drm_primary_update_state(state, regs);
+}
- if (!dplane->state.changed)
- return 0;
+static void armada_drm_primary_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct armada_plane *dplane = drm_to_armada_plane(plane);
+ struct armada_crtc *dcrtc;
+ struct armada_regs *regs;
+ unsigned int idx = 0;
- /* Wait for pending work to complete */
- if (armada_drm_plane_work_wait(dplane, HZ / 10) == 0)
- armada_drm_plane_work_cancel(dcrtc, dplane);
+ DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
- if (!dplane->state.vsync_update) {
- work->fn(dcrtc, work);
- if (work->old_fb)
- drm_framebuffer_unreference(work->old_fb);
- return 0;
- }
+ if (!old_state->crtc)
+ return;
- /* Queue it for update on the next interrupt if we are enabled */
- ret = armada_drm_plane_work_queue(dcrtc, work);
- if (ret) {
- work->fn(dcrtc, work);
- if (work->old_fb)
- drm_framebuffer_unreference(work->old_fb);
- }
+ DRM_DEBUG_KMS("[PLANE:%d:%s] was on [CRTC:%d:%s] with [FB:%d]\n",
+ plane->base.id, plane->name,
+ old_state->crtc->base.id, old_state->crtc->name,
+ old_state->fb->base.id);
- dplane->next_work = !dplane->next_work;
+ dplane->state.ctrl0 &= ~CFG_GRA_ENA;
- return 0;
-}
+ dcrtc = drm_to_armada_crtc(old_state->crtc);
+ regs = dcrtc->regs + dcrtc->regs_idx;
-static int armada_drm_primary_update(struct drm_plane *plane,
- struct drm_crtc *crtc, struct drm_framebuffer *fb,
- int crtc_x, int crtc_y, unsigned int crtc_w, unsigned int crtc_h,
- uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h,
- struct drm_modeset_acquire_ctx *ctx)
-{
- struct drm_plane_state state = {
- .plane = plane,
- .crtc = crtc,
- .fb = fb,
- .src_x = src_x,
- .src_y = src_y,
- .src_w = src_w,
- .src_h = src_h,
- .crtc_x = crtc_x,
- .crtc_y = crtc_y,
- .crtc_w = crtc_w,
- .crtc_h = crtc_h,
- .rotation = DRM_MODE_ROTATE_0,
- };
-
- return armada_drm_do_primary_update(plane, &state, plane->fb);
+ /* Disable plane and power down most RAMs and FIFOs */
+ armada_reg_queue_mod(regs, idx, 0, CFG_GRA_ENA, LCD_SPU_DMA_CTRL0);
+ armada_reg_queue_mod(regs, idx, CFG_PDWN256x32 | CFG_PDWN256x24 |
+ CFG_PDWN256x8 | CFG_PDWN32x32 | CFG_PDWN64x66,
+ 0, LCD_SPU_SRAM_PARA1);
+
+ dcrtc->regs_idx += idx;
}
+static const struct drm_plane_helper_funcs armada_primary_plane_helper_funcs =
{
+ .prepare_fb = armada_drm_plane_prepare_fb,
+ .cleanup_fb = armada_drm_plane_cleanup_fb,
+ .atomic_check = armada_drm_plane_atomic_check,
+ .atomic_update = armada_drm_primary_plane_atomic_update,
+ .atomic_disable = armada_drm_primary_plane_atomic_disable,
+};
+
int armada_drm_plane_disable(struct drm_plane *plane,
struct drm_modeset_acquire_ctx *ctx)
{
@@ -1283,9 +1275,12 @@ int armada_drm_plane_disable(struct drm_plane *plane,
}
static const struct drm_plane_funcs armada_primary_plane_funcs = {
- .update_plane = armada_drm_primary_update,
- .disable_plane = armada_drm_plane_disable,
+ .update_plane = drm_plane_helper_update,
+ .disable_plane = drm_plane_helper_disable,
.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,
};
int armada_drm_plane_init(struct armada_plane *plane)
@@ -1414,6 +1409,9 @@ static int armada_drm_crtc_create(struct drm_device *drm,
struct device *dev,
goto err_crtc;
}
+ drm_plane_helper_add(&primary->base,
+ &armada_primary_plane_helper_funcs);
+
ret = drm_universal_plane_init(drm, &primary->base, 0,
&armada_primary_plane_funcs,
armada_primary_formats,
diff --git a/drivers/gpu/drm/armada/armada_crtc.h
b/drivers/gpu/drm/armada/armada_crtc.h
index 8edcfd1fa75f..3253947e0d41 100644
--- a/drivers/gpu/drm/armada/armada_crtc.h
+++ b/drivers/gpu/drm/armada/armada_crtc.h
@@ -93,7 +93,6 @@ struct armada_crtc {
uint8_t csc_rgb_mode;
struct drm_plane *plane;
- struct drm_framebuffer *old_modeset_fb;
struct armada_gem_object *cursor_obj;
int cursor_x;
@@ -110,14 +109,15 @@ struct armada_crtc {
spinlock_t irq_lock;
uint32_t irq_ena;
+
+ struct armada_regs atomic_regs[32];
+ struct armada_regs *regs;
+ unsigned int regs_idx;
};
#define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
-int armada_drm_plane_disable(struct drm_plane *plane,
- struct drm_modeset_acquire_ctx *ctx);
-
extern struct platform_driver armada_lcd_platform_driver;
#endif
--
2.7.4
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