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dbb4ca8aca
Prepare handling for atomic modeset CRTC events. Currently, using the transition helpers, CRTC events do not exist, but once we switch to proper atomic modeset, they have to be handled. We queue an event for the next vblank in two places: - armada_drm_crtc_atomic_flush() provided we aren't doing an atomic modeset. - armada_drm_crtc_commit() if we are committing a modeset. This ensures that the event is sent at the correct time (after all updates have been written to the hardware and after the following vblank.) Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
104 lines
2.5 KiB
C
104 lines
2.5 KiB
C
/*
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* Copyright (C) 2012 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef ARMADA_CRTC_H
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#define ARMADA_CRTC_H
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struct armada_gem_object;
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struct armada_regs {
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uint32_t offset;
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uint32_t mask;
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uint32_t val;
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};
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#define armada_reg_queue_mod(_r, _i, _v, _m, _o) \
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do { \
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struct armada_regs *__reg = _r; \
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__reg[_i].offset = _o; \
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__reg[_i].mask = ~(_m); \
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__reg[_i].val = _v; \
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_i++; \
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} while (0)
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#define armada_reg_queue_set(_r, _i, _v, _o) \
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armada_reg_queue_mod(_r, _i, _v, ~0, _o)
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#define armada_reg_queue_end(_r, _i) \
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armada_reg_queue_mod(_r, _i, 0, 0, ~0)
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struct armada_crtc;
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struct armada_plane;
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struct armada_variant;
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struct armada_plane_work {
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void (*fn)(struct armada_crtc *, struct armada_plane_work *);
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void (*cancel)(struct armada_crtc *, struct armada_plane_work *);
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bool need_kfree;
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struct drm_plane *plane;
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struct drm_framebuffer *old_fb;
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struct drm_pending_vblank_event *event;
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struct armada_regs regs[24];
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};
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struct armada_plane {
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struct drm_plane base;
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wait_queue_head_t frame_wait;
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struct armada_plane_work *work;
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};
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#define drm_to_armada_plane(p) container_of(p, struct armada_plane, base)
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int armada_drm_plane_work_queue(struct armada_crtc *dcrtc,
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struct armada_plane_work *work);
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int armada_drm_plane_work_wait(struct armada_plane *plane, long timeout);
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void armada_drm_plane_work_cancel(struct armada_crtc *dcrtc,
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struct armada_plane *plane);
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struct armada_crtc {
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struct drm_crtc crtc;
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const struct armada_variant *variant;
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unsigned num;
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void __iomem *base;
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struct clk *clk;
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struct clk *extclk[2];
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struct {
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uint32_t spu_v_h_total;
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uint32_t spu_v_porch;
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uint32_t spu_adv_reg;
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} v[2];
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bool interlaced;
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bool cursor_update;
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struct drm_plane *plane;
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struct armada_gem_object *cursor_obj;
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int cursor_x;
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int cursor_y;
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uint32_t cursor_hw_pos;
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uint32_t cursor_hw_sz;
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uint32_t cursor_w;
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uint32_t cursor_h;
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int dpms;
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uint32_t cfg_dumb_ctrl;
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uint32_t spu_iopad_ctrl;
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spinlock_t irq_lock;
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uint32_t irq_ena;
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struct drm_pending_vblank_event *event;
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struct armada_regs atomic_regs[32];
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struct armada_regs *regs;
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unsigned int regs_idx;
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};
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#define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
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void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
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extern struct platform_driver armada_lcd_platform_driver;
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#endif
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