Support for HW cursors got remove by commit 5a77e2bfdd4f ("drm/mgag200: Remove HW cursor") Apparently the source file was not deleted. Removed it now.
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Fixes: 5a77e2bfdd4f ("drm/mgag200: Remove HW cursor") Cc: Sam Ravnborg sam@ravnborg.org Cc: Emil Velikov emil.velikov@collabora.com Cc: Dave Airlie airlied@redhat.com Cc: "Noralf Trønnes" noralf@tronnes.org Cc: Gerd Hoffmann kraxel@redhat.com Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Thomas Gleixner tglx@linutronix.de Cc: Kate Stewart kstewart@linuxfoundation.org Cc: Allison Randal allison@lohutok.net Cc: Andrzej Pietrasiewicz andrzej.p@collabora.com Cc: "José Roberto de Souza" jose.souza@intel.com --- drivers/gpu/drm/mgag200/mgag200_cursor.c | 319 ----------------------- 1 file changed, 319 deletions(-) delete mode 100644 drivers/gpu/drm/mgag200/mgag200_cursor.c
diff --git a/drivers/gpu/drm/mgag200/mgag200_cursor.c b/drivers/gpu/drm/mgag200/mgag200_cursor.c deleted file mode 100644 index c6932dc8acf2e..0000000000000 --- a/drivers/gpu/drm/mgag200/mgag200_cursor.c +++ /dev/null @@ -1,319 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright 2013 Matrox Graphics - * - * Author: Christopher Harvey charvey@matrox.com - */ - -#include <linux/pci.h> - -#include "mgag200_drv.h" - -static bool warn_transparent = true; -static bool warn_palette = true; - -static int mgag200_cursor_update(struct mga_device *mdev, void *dst, void *src, - unsigned int width, unsigned int height) -{ - struct drm_device *dev = mdev->dev; - unsigned int i, row, col; - uint32_t colour_set[16]; - uint32_t *next_space = &colour_set[0]; - uint32_t *palette_iter; - uint32_t this_colour; - bool found = false; - int colour_count = 0; - u8 reg_index; - u8 this_row[48]; - - memset(&colour_set[0], 0, sizeof(uint32_t)*16); - /* width*height*4 = 16384 */ - for (i = 0; i < 16384; i += 4) { - this_colour = ioread32(src + i); - /* No transparency */ - if (this_colour>>24 != 0xff && - this_colour>>24 != 0x0) { - if (warn_transparent) { - dev_info(&dev->pdev->dev, "Video card doesn't support cursors with partial transparency.\n"); - dev_info(&dev->pdev->dev, "Not enabling hardware cursor.\n"); - warn_transparent = false; /* Only tell the user once. */ - } - return -EINVAL; - } - /* Don't need to store transparent pixels as colours */ - if (this_colour>>24 == 0x0) - continue; - found = false; - for (palette_iter = &colour_set[0]; palette_iter != next_space; palette_iter++) { - if (*palette_iter == this_colour) { - found = true; - break; - } - } - if (found) - continue; - /* We only support 4bit paletted cursors */ - if (colour_count >= 16) { - if (warn_palette) { - dev_info(&dev->pdev->dev, "Video card only supports cursors with up to 16 colours.\n"); - dev_info(&dev->pdev->dev, "Not enabling hardware cursor.\n"); - warn_palette = false; /* Only tell the user once. */ - } - return -EINVAL; - } - *next_space = this_colour; - next_space++; - colour_count++; - } - - /* Program colours from cursor icon into palette */ - for (i = 0; i < colour_count; i++) { - if (i <= 2) - reg_index = 0x8 + i*0x4; - else - reg_index = 0x60 + i*0x3; - WREG_DAC(reg_index, colour_set[i] & 0xff); - WREG_DAC(reg_index+1, colour_set[i]>>8 & 0xff); - WREG_DAC(reg_index+2, colour_set[i]>>16 & 0xff); - BUG_ON((colour_set[i]>>24 & 0xff) != 0xff); - } - - /* now write colour indices into hardware cursor buffer */ - for (row = 0; row < 64; row++) { - memset(&this_row[0], 0, 48); - for (col = 0; col < 64; col++) { - this_colour = ioread32(src + 4*(col + 64*row)); - /* write transparent pixels */ - if (this_colour>>24 == 0x0) { - this_row[47 - col/8] |= 0x80>>(col%8); - continue; - } - - /* write colour index here */ - for (i = 0; i < colour_count; i++) { - if (colour_set[i] == this_colour) { - if (col % 2) - this_row[col/2] |= i<<4; - else - this_row[col/2] |= i; - break; - } - } - } - memcpy_toio(dst + row*48, &this_row[0], 48); - } - - return 0; -} - -static void mgag200_cursor_set_base(struct mga_device *mdev, u64 address) -{ - u8 addrl = (address >> 10) & 0xff; - u8 addrh = (address >> 18) & 0x3f; - - /* Program gpu address of cursor buffer */ - WREG_DAC(MGA1064_CURSOR_BASE_ADR_LOW, addrl); - WREG_DAC(MGA1064_CURSOR_BASE_ADR_HI, addrh); -} - -static int mgag200_show_cursor(struct mga_device *mdev, void *src, - unsigned int width, unsigned int height) -{ - struct drm_device *dev = mdev->dev; - struct drm_gem_vram_object *gbo; - void *dst; - s64 off; - int ret; - - gbo = mdev->cursor.gbo[mdev->cursor.next_index]; - if (!gbo) { - WREG8(MGA_CURPOSXL, 0); - WREG8(MGA_CURPOSXH, 0); - return -ENOTSUPP; /* Didn't allocate space for cursors */ - } - dst = drm_gem_vram_vmap(gbo); - if (IS_ERR(dst)) { - ret = PTR_ERR(dst); - dev_err(&dev->pdev->dev, - "failed to map cursor updates: %d\n", ret); - return ret; - } - off = drm_gem_vram_offset(gbo); - if (off < 0) { - ret = (int)off; - dev_err(&dev->pdev->dev, - "failed to get cursor scanout address: %d\n", ret); - goto err_drm_gem_vram_vunmap; - } - - ret = mgag200_cursor_update(mdev, dst, src, width, height); - if (ret) - goto err_drm_gem_vram_vunmap; - mgag200_cursor_set_base(mdev, off); - - /* Adjust cursor control register to turn on the cursor */ - WREG_DAC(MGA1064_CURSOR_CTL, 4); /* 16-colour palletized cursor mode */ - - drm_gem_vram_vunmap(gbo, dst); - - ++mdev->cursor.next_index; - mdev->cursor.next_index %= ARRAY_SIZE(mdev->cursor.gbo); - - return 0; - -err_drm_gem_vram_vunmap: - drm_gem_vram_vunmap(gbo, dst); - return ret; -} - -/* - * Hide the cursor off screen. We can't disable the cursor hardware because - * it takes too long to re-activate and causes momentary corruption. - */ -static void mgag200_hide_cursor(struct mga_device *mdev) -{ - WREG8(MGA_CURPOSXL, 0); - WREG8(MGA_CURPOSXH, 0); -} - -static void mgag200_move_cursor(struct mga_device *mdev, int x, int y) -{ - if (WARN_ON(x <= 0)) - return; - if (WARN_ON(y <= 0)) - return; - if (WARN_ON(x & ~0xffff)) - return; - if (WARN_ON(y & ~0xffff)) - return; - - WREG8(MGA_CURPOSXL, x & 0xff); - WREG8(MGA_CURPOSXH, (x>>8) & 0xff); - - WREG8(MGA_CURPOSYL, y & 0xff); - WREG8(MGA_CURPOSYH, (y>>8) & 0xff); -} - -int mgag200_cursor_init(struct mga_device *mdev) -{ - struct drm_device *dev = mdev->dev; - size_t ncursors = ARRAY_SIZE(mdev->cursor.gbo); - size_t size; - int ret; - size_t i; - struct drm_gem_vram_object *gbo; - - size = roundup(64 * 48, PAGE_SIZE); - if (size * ncursors > mdev->vram_fb_available) - return -ENOMEM; - - for (i = 0; i < ncursors; ++i) { - gbo = drm_gem_vram_create(dev, size, 0); - if (IS_ERR(gbo)) { - ret = PTR_ERR(gbo); - goto err_drm_gem_vram_put; - } - ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM | - DRM_GEM_VRAM_PL_FLAG_TOPDOWN); - if (ret) { - drm_gem_vram_put(gbo); - goto err_drm_gem_vram_put; - } - - mdev->cursor.gbo[i] = gbo; - } - - /* - * At the high end of video memory, we reserve space for - * buffer objects. The cursor plane uses this memory to store - * a double-buffered image of the current cursor. Hence, it's - * not available for framebuffers. - */ - mdev->vram_fb_available -= ncursors * size; - - return 0; - -err_drm_gem_vram_put: - while (i) { - --i; - gbo = mdev->cursor.gbo[i]; - drm_gem_vram_unpin(gbo); - drm_gem_vram_put(gbo); - mdev->cursor.gbo[i] = NULL; - } - return ret; -} - -void mgag200_cursor_fini(struct mga_device *mdev) -{ - size_t i; - struct drm_gem_vram_object *gbo; - - for (i = 0; i < ARRAY_SIZE(mdev->cursor.gbo); ++i) { - gbo = mdev->cursor.gbo[i]; - drm_gem_vram_unpin(gbo); - drm_gem_vram_put(gbo); - } -} - -int mgag200_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, - uint32_t handle, uint32_t width, uint32_t height) -{ - struct drm_device *dev = crtc->dev; - struct mga_device *mdev = to_mga_device(dev); - struct drm_gem_object *obj; - struct drm_gem_vram_object *gbo = NULL; - int ret; - u8 *src; - - if (!handle || !file_priv) { - mgag200_hide_cursor(mdev); - return 0; - } - - if (width != 64 || height != 64) { - WREG8(MGA_CURPOSXL, 0); - WREG8(MGA_CURPOSXH, 0); - return -EINVAL; - } - - obj = drm_gem_object_lookup(file_priv, handle); - if (!obj) - return -ENOENT; - gbo = drm_gem_vram_of_gem(obj); - src = drm_gem_vram_vmap(gbo); - if (IS_ERR(src)) { - ret = PTR_ERR(src); - dev_err(&dev->pdev->dev, - "failed to map user buffer updates\n"); - goto err_drm_gem_object_put; - } - - ret = mgag200_show_cursor(mdev, src, width, height); - if (ret) - goto err_drm_gem_vram_vunmap; - - /* Now update internal buffer pointers */ - drm_gem_vram_vunmap(gbo, src); - drm_gem_object_put(obj); - - return 0; -err_drm_gem_vram_vunmap: - drm_gem_vram_vunmap(gbo, src); -err_drm_gem_object_put: - drm_gem_object_put(obj); - return ret; -} - -int mgag200_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) -{ - struct mga_device *mdev = to_mga_device(crtc->dev); - - /* Our origin is at (64,64) */ - x += 64; - y += 64; - - mgag200_move_cursor(mdev, x, y); - - return 0; -}