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5518572dce
Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers don't benefit from using it. DRM IRQ callbacks are now being called directly or inlined. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-11-tzimmermann@suse.de
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
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* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
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*/
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#ifndef __TIDSS_IRQ_H__
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#define __TIDSS_IRQ_H__
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#include <linux/types.h>
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#include "tidss_drv.h"
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/*
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* The IRQ status from various DISPC IRQ registers are packed into a single
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* value, where the bits are defined as follows:
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*
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* bit group |dev|wb |mrg0|mrg1|mrg2|mrg3|plane0-3| <unused> |
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* bit use |D |fou|FEOL|FEOL|FEOL|FEOL| UUUU | |
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* bit number|0 |1-3|4-7 |8-11| 12-19 | 20-23 | 24-31 |
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*
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* device bits: D = OCP error
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* WB bits: f = frame done wb, o = wb buffer overflow,
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* u = wb buffer uncomplete
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* vp bits: F = frame done, E = vsync even, O = vsync odd, L = sync lost
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* plane bits: U = fifo underflow
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*/
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#define DSS_IRQ_DEVICE_OCP_ERR BIT(0)
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#define DSS_IRQ_DEVICE_FRAMEDONEWB BIT(1)
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#define DSS_IRQ_DEVICE_WBBUFFEROVERFLOW BIT(2)
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#define DSS_IRQ_DEVICE_WBUNCOMPLETEERROR BIT(3)
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#define DSS_IRQ_DEVICE_WB_MASK GENMASK(3, 1)
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#define DSS_IRQ_VP_BIT_N(ch, bit) (4 + 4 * (ch) + (bit))
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#define DSS_IRQ_PLANE_BIT_N(plane, bit) \
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(DSS_IRQ_VP_BIT_N(TIDSS_MAX_PORTS, 0) + 1 * (plane) + (bit))
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#define DSS_IRQ_VP_BIT(ch, bit) BIT(DSS_IRQ_VP_BIT_N((ch), (bit)))
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#define DSS_IRQ_PLANE_BIT(plane, bit) \
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BIT(DSS_IRQ_PLANE_BIT_N((plane), (bit)))
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static inline dispc_irq_t DSS_IRQ_VP_MASK(u32 ch)
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{
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return GENMASK(DSS_IRQ_VP_BIT_N((ch), 3), DSS_IRQ_VP_BIT_N((ch), 0));
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}
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static inline dispc_irq_t DSS_IRQ_PLANE_MASK(u32 plane)
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{
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return GENMASK(DSS_IRQ_PLANE_BIT_N((plane), 0),
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DSS_IRQ_PLANE_BIT_N((plane), 0));
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}
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#define DSS_IRQ_VP_FRAME_DONE(ch) DSS_IRQ_VP_BIT((ch), 0)
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#define DSS_IRQ_VP_VSYNC_EVEN(ch) DSS_IRQ_VP_BIT((ch), 1)
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#define DSS_IRQ_VP_VSYNC_ODD(ch) DSS_IRQ_VP_BIT((ch), 2)
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#define DSS_IRQ_VP_SYNC_LOST(ch) DSS_IRQ_VP_BIT((ch), 3)
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#define DSS_IRQ_PLANE_FIFO_UNDERFLOW(plane) DSS_IRQ_PLANE_BIT((plane), 0)
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struct drm_crtc;
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struct drm_device;
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struct tidss_device;
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void tidss_irq_enable_vblank(struct drm_crtc *crtc);
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void tidss_irq_disable_vblank(struct drm_crtc *crtc);
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int tidss_irq_install(struct drm_device *ddev, unsigned int irq);
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void tidss_irq_uninstall(struct drm_device *ddev);
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void tidss_irq_resume(struct tidss_device *tidss);
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#endif
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