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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - drivers/gpu/drm/tidss/tidss_irq.h
1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
4 * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
7 #ifndef __TIDSS_IRQ_H__
8 #define __TIDSS_IRQ_H__
10 #include <linux/types.h>
12 #include "tidss_drv.h"
15 * The IRQ status from various DISPC IRQ registers are packed into a single
16 * value, where the bits are defined as follows:
18 * bit group |dev|wb |mrg0|mrg1|mrg2|mrg3|plane0-3| <unused> |
19 * bit use |D |fou|FEOL|FEOL|FEOL|FEOL| UUUU | |
20 * bit number|0 |1-3|4-7 |8-11| 12-19 | 20-23 | 24-31 |
22 * device bits: D = OCP error
23 * WB bits: f = frame done wb, o = wb buffer overflow,
24 * u = wb buffer uncomplete
25 * vp bits: F = frame done, E = vsync even, O = vsync odd, L = sync lost
26 * plane bits: U = fifo underflow
29 #define DSS_IRQ_DEVICE_OCP_ERR BIT(0)
31 #define DSS_IRQ_DEVICE_FRAMEDONEWB BIT(1)
32 #define DSS_IRQ_DEVICE_WBBUFFEROVERFLOW BIT(2)
33 #define DSS_IRQ_DEVICE_WBUNCOMPLETEERROR BIT(3)
34 #define DSS_IRQ_DEVICE_WB_MASK GENMASK(3, 1)
36 #define DSS_IRQ_VP_BIT_N(ch, bit) (4 + 4 * (ch) + (bit))
37 #define DSS_IRQ_PLANE_BIT_N(plane, bit) \
38 (DSS_IRQ_VP_BIT_N(TIDSS_MAX_PORTS, 0) + 1 * (plane) + (bit))
40 #define DSS_IRQ_VP_BIT(ch, bit) BIT(DSS_IRQ_VP_BIT_N((ch), (bit)))
41 #define DSS_IRQ_PLANE_BIT(plane, bit) \
42 BIT(DSS_IRQ_PLANE_BIT_N((plane), (bit)))
44 static inline dispc_irq_t
DSS_IRQ_VP_MASK(u32 ch
)
46 return GENMASK(DSS_IRQ_VP_BIT_N((ch
), 3), DSS_IRQ_VP_BIT_N((ch
), 0));
49 static inline dispc_irq_t
DSS_IRQ_PLANE_MASK(u32 plane
)
51 return GENMASK(DSS_IRQ_PLANE_BIT_N((plane
), 0),
52 DSS_IRQ_PLANE_BIT_N((plane
), 0));
55 #define DSS_IRQ_VP_FRAME_DONE(ch) DSS_IRQ_VP_BIT((ch), 0)
56 #define DSS_IRQ_VP_VSYNC_EVEN(ch) DSS_IRQ_VP_BIT((ch), 1)
57 #define DSS_IRQ_VP_VSYNC_ODD(ch) DSS_IRQ_VP_BIT((ch), 2)
58 #define DSS_IRQ_VP_SYNC_LOST(ch) DSS_IRQ_VP_BIT((ch), 3)
60 #define DSS_IRQ_PLANE_FIFO_UNDERFLOW(plane) DSS_IRQ_PLANE_BIT((plane), 0)
67 void tidss_irq_enable_vblank(struct drm_crtc
*crtc
);
68 void tidss_irq_disable_vblank(struct drm_crtc
*crtc
);
70 void tidss_irq_preinstall(struct drm_device
*ddev
);
71 int tidss_irq_postinstall(struct drm_device
*ddev
);
72 void tidss_irq_uninstall(struct drm_device
*ddev
);
73 irqreturn_t
tidss_irq_handler(int irq
, void *arg
);
75 void tidss_irq_resume(struct tidss_device
*tidss
);