1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2014-2015 Broadcom
11  * OpenGL ES 2.0-compatible 3D engine called V3D, and a highly
16  * compute shader-style jobs using the same shader processor as is
27 #include <linux/dma-mapping.h>
41 #include <soc/bcm2835/raspberrypi-firmware.h>
68 	int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);  in vc4_dumb_fixup_args()
70 	if (args->pitch < min_pitch)  in vc4_dumb_fixup_args()
71 		args->pitch = min_pitch;  in vc4_dumb_fixup_args()
73 	if (args->size < args->pitch * args->height)  in vc4_dumb_fixup_args()
74 		args->size = args->pitch * args->height;  in vc4_dumb_fixup_args()
99 	if (args->pad != 0)  in vc4_get_param_ioctl()
100 		return -EINVAL;  in vc4_get_param_ioctl()
102 	if (WARN_ON_ONCE(vc4->gen > VC4_GEN_4))  in vc4_get_param_ioctl()
103 		return -ENODEV;  in vc4_get_param_ioctl()
105 	if (!vc4->v3d)  in vc4_get_param_ioctl()
106 		return -ENODEV;  in vc4_get_param_ioctl()
108 	switch (args->param) {  in vc4_get_param_ioctl()
113 		args->value = V3D_READ(V3D_IDENT0);  in vc4_get_param_ioctl()
120 		args->value = V3D_READ(V3D_IDENT1);  in vc4_get_param_ioctl()
127 		args->value = V3D_READ(V3D_IDENT2);  in vc4_get_param_ioctl()
136 		args->value = true;  in vc4_get_param_ioctl()
139 		DRM_DEBUG("Unknown parameter %d\n", args->param);  in vc4_get_param_ioctl()
140 		return -EINVAL;  in vc4_get_param_ioctl()
151 	if (WARN_ON_ONCE(vc4->gen > VC4_GEN_4))  in vc4_open()
152 		return -ENODEV;  in vc4_open()
156 		return -ENOMEM;  in vc4_open()
157 	vc4file->dev = vc4;  in vc4_open()
160 	file->driver_priv = vc4file;  in vc4_open()
167 	struct vc4_file *vc4file = file->driver_priv;  in vc4_close()
169 	if (WARN_ON_ONCE(vc4->gen > VC4_GEN_4))  in vc4_close()
172 	if (vc4file->bin_bo_used)  in vc4_close()
258 		struct device_driver *drv = &drivers[i]->driver;  in vc4_match_add_drivers()
274 	component_unbind_all(vc4->dev, &vc4->base);  in vc4_component_unbind_all()
278 	{ .compatible = "brcm,bcm2711-hvs" },
279 	{ .compatible = "brcm,bcm2712-hvs" },
280 	{ .compatible = "brcm,bcm2835-hvs" },
281 	{ .compatible = "brcm,bcm2835-v3d" },
282 	{ .compatible = "brcm,cygnus-v3d" },
283 	{ .compatible = "brcm,vc4-v3d" },
299 	dev->coherent_dma_mask = DMA_BIT_MASK(32);  in vc4_drm_bind()
326 	vc4->gen = gen;  in vc4_drm_bind()
327 	vc4->dev = dev;  in vc4_drm_bind()
329 	drm = &vc4->base;  in vc4_drm_bind()
333 		ret = drmm_mutex_init(drm, &vc4->bin_bo_lock);  in vc4_drm_bind()
352 	node = of_find_compatible_node(NULL, NULL, "raspberrypi,bcm2835-firmware");  in vc4_drm_bind()
358 			ret = -EPROBE_DEFER;  in vc4_drm_bind()
363 	ret = aperture_remove_all_conflicting_devices(driver->name);  in vc4_drm_bind()
426  *   - The TXP driver needs to be bound before the PixelValves (CRTC)
427  *     but after the HVS to set the possible_crtc field properly
428  *   - The HDMI driver needs to be bound after the HVS so that we can
429  *     lookup the HVS maximum core clock rate and figure out if we
446 	struct device *dev = &pdev->dev;  in vc4_platform_drm_probe()
456 	component_master_del(&pdev->dev, &vc4_drm_ops);  in vc4_platform_drm_remove()
465 	{ .compatible = "brcm,bcm2711-vc5", .data = (void *)VC4_GEN_5 },
467 	{ .compatible = "brcm,bcm2712-vc6", .data = (void *)VC4_GEN_6_C },
468 	{ .compatible = "brcm,bcm2835-vc4", .data = (void *)VC4_GEN_4 },
469 	{ .compatible = "brcm,cygnus-vc4", .data = (void *)VC4_GEN_4 },
479 		.name	= "vc4-drm",
489 		return -ENODEV;  in vc4_drm_register()
514 MODULE_ALIAS("platform:vc4-drm");
515 MODULE_SOFTDEP("pre: snd-soc-hdmi-codec");