summaryrefslogtreecommitdiff
path: root/linux-core
AgeCommit message (Expand)Author
2006-11-05nouveau: add compat ioc32 supportDave Airlie
2006-11-05remove config.hDave Airlie
2006-10-30Bugzilla Bug #8819Thomas Hellstrom
2006-10-27Last minute changes to support multi-page size buffer offset alignments.Thomas Hellstrom
2006-10-26New mm function names. Update header.Thomas Hellstrom
2006-10-26Add improved alignment functionality to the core memory manager.Thomas Hellstrom
2006-10-26Add a one-page hole in the file offset space between buffers.Thomas Hellstrom
2006-10-21Merge branch 'master' of git+ssh://git.freedesktop.org/git/mesa/drmThomas Hellstrom
2006-10-21The CPU cache must be flushed _before_ we start modifying the kernel map ptes,Thomas Hellstrom
2006-10-20Bug #1746: Set dev_priv_size for the MGA driver.Tilman Sauerbeck
2006-10-20We apparently need this global cache flush anyway.Thomas Hellstrom
2006-10-20Bug #8707, 2.6.19-rc compatibility for memory manager code.Thomas Hellstrom
2006-10-19Merge branch 'master' of git+ssh://git.freedesktop.org/git/mesa/drmThomas Hellstrom
2006-10-19Importing fixes from drm-ttm-0-2-branchThomas Hellstrom
2006-10-19Make sure delayed delete list is empty on lastclose.Thomas Hellstrom
2006-10-18Merging drm-ttm-0-2-branchThomas Hellstrom
2006-10-18Remove stray softlink.Thomas Hellstrom
2006-10-18Avoid driver-specific AGP user-populated types, since we don't know what AGPThomas Hellstrom
2006-10-17Remove max number of locked pages check and call, sinceThomas Hellstrom
2006-10-17Lindent.Thomas Hellstrom
2006-10-17Add vma list memory usage to memory accounting.Thomas Hellstrom
2006-10-17Add memory usage accounting to avoid DOS problems.Thomas Hellstrom
2006-10-17Implement mm_lock and mm_unlock functions.Thomas Hellstrom
2006-10-17Remove the memory manager parameter from the put_block function, as thisThomas Hellstrom
2006-10-17Extend generality for more memory types.Thomas Hellstrom
2006-10-16Change Intel AGP memory type numbers.Thomas Hellstrom
2006-10-15Merge branch 'master' of git://anongit.freedesktop.org/git/mesa/drm into nouv...Stephane Marchesin
2006-10-14remove config.h from build no longer exists kbuild does itDave Airlie
2006-10-12Bugfixes.Thomas Hellstrom
2006-10-12Simplify the AGP backend interface somewhat.Thomas Hellstrom
2006-10-11Compatibility code for 2.6.15-2.6.18. It is ugly but a little comfort is thatThomas Hellstrom
2006-10-11Big update:Thomas Hellstrom
2006-10-10Use a nopage-based approach to fault in pfns.Thomas Hellstrom
2006-10-03Get rid of all ugly PTE hacks.Thomas Hellstrom
2006-10-02Bug 6242: [mach64] Use private DMA buffers, part #3.George Sapountzis
2006-10-02Fix type of second argument to spin_lock_irqsave().Michel Dänzer
2006-10-02Fix type of second argument to spin_lock_irqsave().Michel Dänzer
2006-10-02Make the user_token 44-bit for TTMs, and have them occupy a unique file spaceThomas Hellstrom
2006-10-02Add a buffer object manager for TTM maps.Thomas Hellstrom
2006-10-02Allow for 44 bit user-tokens (or drm_file offsets)Thomas Hellstrom
2006-10-02Add a comment to previos commit.Thomas Hellstrom
2006-10-02Trap and be verbose about a deadlock that occurs with AIGLX and drivers thatThomas Hellstrom
2006-10-02Make locked tasklet handling more robust.Michel Dänzer
2006-09-29Core vsync: Don't clobber target sequence number when scheduling signal.Michel Dänzer
2006-09-29Core vsync: Add flag DRM_VBLANK_NEXTONMISS.Michel Dänzer
2006-09-29Change first valid DRM drawable ID to be 1 instead of 0.Michel Dänzer
2006-09-29Drop tasklet locked driver callback when uninstalling IRQ.Michel Dänzer
2006-09-29Hook up DRM_IOCTL_UPDATE_DRAW ioctl.Michel Dänzer
2006-09-29Add support for tracking drawable information to coreMichel Dänzer
2006-09-29Add support for interrupt triggered driver callback with lock held to DRM core.Michel Dänzer
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-26 10:16:14 +0000
'#n405'>405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 
/*
 * Copyright (C) 2008 Maarten Maathuis.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>

#include "nv50_fbcon.h"

static int nv50_fbcon_setcolreg(unsigned regno, unsigned red, unsigned green,
			unsigned blue, unsigned transp,
			struct fb_info *info)
{
	struct nv50_fbcon_par *par = info->par;
	struct drm_device *dev = par->dev;
	struct drm_framebuffer *drm_fb; 

	list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
		if (regno > 255)
			return 1;

		/* TODO: 8 bit support */
		if (regno < 16) {
			switch (drm_fb->depth) {
			case 15:
				drm_fb->pseudo_palette[regno] = ((red & 0xf800) >> 1) |
					((green & 0xf800) >>  6) |
					((blue & 0xf800) >> 11);
				break;
			case 16:
				drm_fb->pseudo_palette[regno] = (red & 0xf800) |
					((green & 0xfc00) >>  5) |
					((blue  & 0xf800) >> 11);
				break;
			case 24:
			case 32:
				drm_fb->pseudo_palette[regno] = ((red & 0xff00) << 8) |
					(green & 0xff00) |
					((blue  & 0xff00) >> 8);
				break;
			}
		}
	}
	return 0;
}

static int nv50_fbcon_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
	struct nv50_fbcon_par *par = info->par;
	struct drm_framebuffer *drm_fb = par->fb;
	int depth;

	NV50_DEBUG("\n");

	if (!var || !drm_fb || !info) {
		DRM_ERROR("No var, drm_fb or info\n");
	}

	par->use_preferred_mode = false;

	if (var->pixclock == -1 || !var->pixclock) {
		DRM_INFO("Using preferred mode.\n");
		par->use_preferred_mode = true;
	}

	/* Need to resize the fb object !!! */
	if (var->xres > drm_fb->width || var->yres > drm_fb->height) {
		DRM_ERROR("Requested width/height is greater than current fb object %dx%d > %dx%d\n", var->xres,var->yres, drm_fb->width, drm_fb->height);
		DRM_ERROR("Need resizing code.\n");
		return -EINVAL;
	}

	switch (var->bits_per_pixel) {
	case 16:
		depth = (var->green.length == 6) ? 16 : 15;
		break;
	case 32:
		depth = (var->transp.length > 0) ? 32 : 24;
		break;
	default:
		depth = var->bits_per_pixel;
		break;
	}

	switch (depth) {
	case 15:
		var->red.offset = 10;
		var->green.offset = 5;
		var->blue.offset = 0;
		var->red.length = 5;
		var->green.length = 5;
		var->blue.length = 5;
		var->transp.length = 1;
		var->transp.offset = 15;
		break;
	case 16:
		var->red.offset = 11;
		var->green.offset = 5;
		var->blue.offset = 0;
		var->red.length = 5;
		var->green.length = 6;
		var->blue.length = 5;
		var->transp.length = 0;
		var->transp.offset = 0;
		break;
	case 24:
		var->red.offset = 16;
		var->green.offset = 8;
		var->blue.offset = 0;
		var->red.length = 8;
		var->green.length = 8;
		var->blue.length = 8;
		var->transp.length = 0;
		var->transp.offset = 0;
		break;
	case 32:
		var->red.offset = 16;
		var->green.offset = 8;
		var->blue.offset = 0;
		var->red.length = 8;
		var->green.length = 8;
		var->blue.length = 8;
		var->transp.length = 8;
		var->transp.offset = 24;
		break;
	default:
		DRM_ERROR("Invalid depth %d\n", depth);
		return -EINVAL; 
	}

	return 0;
}

static int nv50_fbcon_set_par(struct fb_info *info)
{
	struct nv50_fbcon_par *par;
	struct drm_framebuffer *drm_fb;
	struct drm_connector *drm_connector;
	struct drm_crtc *drm_crtc;
	struct fb_var_screeninfo *var;
	struct drm_display_mode *drm_mode = NULL, *t;
	struct drm_device *dev;
	int rval;
	bool crtc_used[2] = {false, false};

	NV50_DEBUG("\n");

	if (!info) {
		DRM_ERROR("No fb_info\n");
		return -EINVAL;
	}

	par = info->par;

	if (!par) {
		DRM_ERROR("No nv50_fbcon_par\n");
		return -EINVAL;
	}

	drm_fb = par->fb;
	var = &info->var;
	dev = par->dev;

	if (!drm_fb || !var || !dev) {
		DRM_ERROR("No drm_fb, var or dev\n");
		return -EINVAL;
	}

	par->use_preferred_mode = false;

	if (var->pixclock == -1 || !var->pixclock) {
		DRM_INFO("Using preferred mode.\n");
		par->use_preferred_mode = true;
	}

	/* FB setup */
	switch (var->bits_per_pixel) {
	case 16:
		drm_fb->depth = (var->green.length == 6) ? 16 : 15;
		break;
	case 32:
		drm_fb->depth = (var->transp.length > 0) ? 32 : 24;
		break;
	default:
		drm_fb->depth = var->bits_per_pixel;
		break;
	}

	drm_fb->bits_per_pixel = var->bits_per_pixel;

	info->fix.line_length = drm_fb->pitch;
	info->fix.smem_len = info->fix.line_length * drm_fb->height;
	/* ignoring 8bpp for the moment */
	info->fix.visual = FB_VISUAL_TRUECOLOR;

	info->screen_size = info->fix.smem_len; /* ??? */

	/* create a drm mode */
	if (!par->use_preferred_mode) {
		drm_mode = drm_mode_create(dev);
		drm_mode->hdisplay = var->xres;
		drm_mode->hsync_start = drm_mode->hdisplay + var->right_margin;
		drm_mode->hsync_end = drm_mode->hsync_start + var->hsync_len;
		drm_mode->htotal = drm_mode->hsync_end + var->left_margin;
		drm_mode->vdisplay = var->yres;
		drm_mode->vsync_start = drm_mode->vdisplay + var->lower_margin;
		drm_mode->vsync_end = drm_mode->vsync_start + var->vsync_len;
		drm_mode->vtotal = drm_mode->vsync_end + var->upper_margin;
		drm_mode->clock = PICOS2KHZ(var->pixclock);
		drm_mode->vrefresh = drm_mode_vrefresh(drm_mode);
		drm_mode->flags = 0;
		drm_mode->flags |= var->sync & FB_SYNC_HOR_HIGH_ACT ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
		drm_mode->flags |= var->sync & FB_SYNC_VERT_HIGH_ACT ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;

		drm_mode_set_name(drm_mode);
		drm_mode_set_crtcinfo(drm_mode, CRTC_INTERLACE_HALVE_V);
	}

	/* hook up crtc's */
	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
		enum drm_connector_status status;
		struct drm_mode_set mode_set;
		int crtc_count = 0;

		status = drm_connector->funcs->detect(drm_connector);

		if (status != connector_status_connected)
			continue;

		memset(&mode_set, 0, sizeof(struct drm_mode_set));

		/* set connector */
		mode_set.num_connectors = 1;
		mode_set.connectors = kzalloc(sizeof(struct drm_connector *), GFP_KERNEL);
		if (!mode_set.connectors) {
			rval = -ENOMEM;
			goto out;
		}
		mode_set.connectors[0] = drm_connector;

		/* set fb */
		list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
			break; /* first entry is the only entry */
		}
		mode_set.fb = drm_fb;

		/* set mode */
		if (par->use_preferred_mode) {
			/* find preferred mode */
			list_for_each_entry_safe(drm_mode, t, &drm_connector->modes, head) {
				if (drm_mode->type & DRM_MODE_TYPE_PREFERRED)
					break;
			}
		}
		mode_set.mode = drm_mode;

		/* choose crtc it already has, if possible */
		if (drm_connector->encoder) {
			struct drm_encoder *drm_encoder = drm_connector->encoder;

			if (drm_encoder->crtc) {
				list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
					if (drm_crtc == drm_encoder->crtc) {
						if (!crtc_used[crtc_count]) /* still available? */
							mode_set.crtc = drm_crtc;
						break;
					}

					crtc_count++;
				}
			}
		}

		/* proceed as planned */
		if (mode_set.crtc) {
			mode_set.crtc->funcs->set_config(&mode_set);
			crtc_used[crtc_count] = true;
		}

		if (!mode_set.crtc) {
			crtc_count = 0; /* reset */

			/* choose a "random" crtc */
			list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
				if (crtc_used[crtc_count]) {
					crtc_count++;
					continue;
				}

				/* found a crtc */
				mode_set.crtc = drm_crtc;

				break;
			}

			/* proceed as planned */
			if (mode_set.crtc) {
				mode_set.crtc->funcs->set_config(&mode_set);
				crtc_used[crtc_count] = true;
			}
		}

		kfree(mode_set.connectors);
	}

	return 0;

out:
	return rval;
}

static struct fb_ops nv50_fb_ops = {
	.owner = THIS_MODULE,
	//.fb_open = nv50_fb_open,
	//.fb_read = nv50_fb_read,
	//.fb_write = nv50_fb_write,
	//.fb_release = nv50_fb_release,
	//.fb_ioctl = nv50_fb_ioctl,
	.fb_check_var = nv50_fbcon_check_var,
	.fb_set_par = nv50_fbcon_set_par,
	.fb_setcolreg = nv50_fbcon_setcolreg,
	.fb_fillrect = cfb_fillrect,
	.fb_copyarea = cfb_copyarea,
	.fb_imageblit = cfb_imageblit,
	//.fb_pan_display = nv50_fb_pan_display,
};

static int nv50_fbcon_initial_config(struct drm_device *dev)
{
	struct drm_connector *drm_connector;

	struct drm_framebuffer *drm_fb = NULL;
	struct drm_mode_fb_cmd drm_fb_cmd;
	enum drm_connector_status status;
	uint32_t max_width = 0, max_height = 0, pitch = 0;
	struct mem_block *block;
	struct drm_file *file_priv;
	uint32_t flags;
	int rval = 0;

	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
		status = drm_connector->funcs->detect(drm_connector);

		/* find the framebuffer size */
		if (status == connector_status_connected) {
			struct drm_display_mode *mode, *t;
			list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
				if (mode->type & DRM_MODE_TYPE_PREFERRED) {
					if (mode->hdisplay > max_width)
						max_width = mode->hdisplay;
					if (mode->vdisplay > max_height)
						max_height = mode->vdisplay;
				}
			}
		}
	}

	/* allocate framebuffer */
	file_priv = kzalloc(sizeof(struct drm_file), GFP_KERNEL);
	if (!file_priv) {
		rval = -ENOMEM;
		goto out;
	}

	pitch = (max_width + 63) & ~63;
	pitch *= 4; /* TODO */

	flags = NOUVEAU_MEM_FB | NOUVEAU_MEM_MAPPED;

	/* Any file_priv should do as it's pointer is used as identification. */
	block = nouveau_mem_alloc(dev, 0, pitch * max_height, flags, file_priv);
	if (!block) {
		rval = -ENOMEM;
		goto out;
	}

	memset(&drm_fb_cmd, 0, sizeof(struct drm_mode_fb_cmd));

	drm_fb_cmd.width = max_width;
	drm_fb_cmd.height = max_height;
	drm_fb_cmd.pitch = pitch;
	drm_fb_cmd.bpp = 32; /* TODO */
	drm_fb_cmd.handle = block->map_handle;
	drm_fb_cmd.depth = 24; /* TODO */

	drm_fb = dev->mode_config.funcs->fb_create(dev, file_priv, &drm_fb_cmd);
	if (!drm_fb) {
		rval = -EINVAL;
		goto out;
	}

	list_add(&drm_fb->filp_head, &dev->mode_config.fb_kernel_list);

	return 0;

out:
	if (file_priv)
		kfree(file_priv);
	if (drm_fb)
		drm_fb->funcs->destroy(drm_fb);

	return rval;
}

/*
 * Single framebuffer, ideally operating in clone mode across various connectors.
 */
int nv50_fbcon_init(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct fb_info *info;
	struct nv50_fbcon_par *par;
	struct device *device = &dev->pdev->dev;
	struct drm_framebuffer *drm_fb;
	struct mem_block *block;
	void __iomem *fb = NULL;
	int rval;

	rval = nv50_fbcon_initial_config(dev);
	if (rval != 0) {
		DRM_ERROR("nv50_fbcon_initial_config failed\n");
		return rval;
	}

	list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
		break; /* first entry is the only entry */
	}

	if (!drm_fb) {
		DRM_ERROR("no drm_fb found\n");
		return -EINVAL;
	}

	block = find_block_by_handle(dev_priv->fb_heap, drm_fb->mm_handle);
	if (!block) {
		DRM_ERROR("can't find mem_block\n");
		return -EINVAL;
	}

	info = framebuffer_alloc(sizeof(struct nv50_fbcon_par), device);
	if (!info) {
		DRM_ERROR("framebuffer_alloc failed\n");
		return -EINVAL;
	}

	par = info->par;

	strcpy(info->fix.id, "nv50drmfb");
	info->fix.type = FB_TYPE_PACKED_PIXELS;
	info->fix.visual = FB_VISUAL_TRUECOLOR;
	info->fix.type_aux = 0;
	info->fix.xpanstep = 0; /* 1 is doing it in hw */
	info->fix.ypanstep = 0;
	info->fix.ywrapstep = 0;
	info->fix.accel = FB_ACCEL_NONE;
	info->fix.type_aux = 0;

	info->flags = FBINFO_DEFAULT;

	info->fbops = &nv50_fb_ops;

	info->fix.line_length = drm_fb->pitch;
	info->fix.smem_start = dev_priv->fb_phys + block->start;
	info->fix.smem_len = info->fix.line_length * drm_fb->height;

	info->flags = FBINFO_DEFAULT;

	fb = ioremap(dev_priv->fb_phys + block->start, block->size);
	if (!fb) {
		DRM_ERROR("Unable to ioremap framebuffer\n");
		return -EINVAL;
	}

 	info->screen_base = fb;
	info->screen_size = info->fix.smem_len; /* FIXME */

	info->pseudo_palette = drm_fb->pseudo_palette;
	info->var.xres_virtual = drm_fb->width;
	info->var.yres_virtual = drm_fb->height;
	info->var.bits_per_pixel = drm_fb->bits_per_pixel;
	info->var.xoffset = 0;
	info->var.yoffset = 0;
	info->var.activate = FB_ACTIVATE_NOW;
	info->var.height = -1;
	info->var.width = -1;

	/* TODO: improve this */
	info->var.xres = drm_fb->width;
	info->var.yres = drm_fb->height;

	info->fix.mmio_start = drm_get_resource_start(dev, 0);
	info->fix.mmio_len = drm_get_resource_len(dev, 0);

	DRM_DEBUG("fb depth is %d\n", drm_fb->depth);
	DRM_DEBUG("   pitch is %d\n", drm_fb->pitch);

	switch(drm_fb->depth) {
 	case 15:
		info->var.red.offset = 10;
		info->var.green.offset = 5;
		info->var.blue.offset = 0;
		info->var.red.length = 5;
		info->var.green.length = 5;
		info->var.blue.length = 5;
		info->var.transp.offset = 15;
		info->var.transp.length = 1;
		break;
	case 16:
		info->var.red.offset = 11;
		info->var.green.offset = 5;
		info->var.blue.offset = 0;
		info->var.red.length = 5;
		info->var.green.length = 6;
		info->var.blue.length = 5;
		info->var.transp.offset = 0;
 		break;
	case 24:
		info->var.red.offset = 16;
		info->var.green.offset = 8;
		info->var.blue.offset = 0;
		info->var.red.length = 8;
		info->var.green.length = 8;
		info->var.blue.length = 8;
		info->var.transp.offset = 0;
		info->var.transp.length = 0;
		break;
	case 32:
		info->var.red.offset = 16;
		info->var.green.offset = 8;
		info->var.blue.offset = 0;
		info->var.red.length = 8;
		info->var.green.length = 8;
		info->var.blue.length = 8;
		info->var.transp.offset = 24;
		info->var.transp.length = 8;
		break;
	default:
		break;
	}

	drm_fb->fbdev = info;
	par->dev = dev;
	par->fb = drm_fb;

	register_framebuffer(info);

	DRM_INFO("nv50drmfb initialised\n");

	return 0;
}

int nv50_fbcon_destroy(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct drm_framebuffer *drm_fb;
	struct fb_info *info;
	struct mem_block *block;
	struct drm_file *file_priv;

	list_for_each_entry(drm_fb, &dev->mode_config.fb_kernel_list, filp_head) {
		break; /* first entry is the only entry */
	}

	if (!drm_fb) {
		DRM_ERROR("No framebuffer to destroy\n");
		return -EINVAL;
	}

	info = drm_fb->fbdev;
	if (!info) {
		DRM_ERROR("No fb_info\n");
		return -EINVAL;
	}

	unregister_framebuffer(info);

	block = find_block_by_handle(dev_priv->fb_heap, drm_fb->mm_handle);
	if (!block) {
		DRM_ERROR("can't find mem_block\n");
		return -EINVAL;
	}

	/* we need to free this after memory is freed */
	file_priv = block->file_priv;

	/* free memory */
	nouveau_mem_free(dev, block);

	if (file_priv) {
		kfree(file_priv);
		file_priv = NULL;
	}

	framebuffer_release(info);

	return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-26 10:16:14 +0000