From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6DF9C83004 for ; Wed, 29 Apr 2020 14:32:43 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B3E3621D82 for ; Wed, 29 Apr 2020 14:32:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B3E3621D82 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 04C7389359; Wed, 29 Apr 2020 14:32:43 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5973089359 for ; Wed, 29 Apr 2020 14:32:42 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 1911EAC92; Wed, 29 Apr 2020 14:32:40 +0000 (UTC) From: Thomas Zimmermann To: airlied@redhat.com, daniel@ffwll.ch, kraxel@redhat.com, noralf@tronnes.org, sam@ravnborg.org, john.p.donnelly@oracle.com Subject: [PATCH 01/17] drm/mgag200: Remove HW cursor Date: Wed, 29 Apr 2020 16:32:22 +0200 Message-Id: <20200429143238.10115-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200429143238.10115-1-tzimmermann@suse.de> References: <20200429143238.10115-1-tzimmermann@suse.de> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Zimmermann , dri-devel@lists.freedesktop.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The HW cursor of Matrox G200 cards only supports a 16-color palette format. Univeral planes require at least ARGB or a similar component- based format. Converting a cursor image from ARGB to 16 colors does not produce pleasent-looking results in general, so remove the HW cursor. Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/mgag200/Makefile | 2 +- drivers/gpu/drm/mgag200/mgag200_cursor.c | 319 ----------------------- drivers/gpu/drm/mgag200/mgag200_drv.h | 13 - drivers/gpu/drm/mgag200/mgag200_main.c | 7 - drivers/gpu/drm/mgag200/mgag200_mode.c | 2 - 5 files changed, 1 insertion(+), 342 deletions(-) delete mode 100644 drivers/gpu/drm/mgag200/mgag200_cursor.c diff --git a/drivers/gpu/drm/mgag200/Makefile b/drivers/gpu/drm/mgag200/Makefile index 04b281bcf6558..63403133638a3 100644 --- a/drivers/gpu/drm/mgag200/Makefile +++ b/drivers/gpu/drm/mgag200/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only -mgag200-y := mgag200_main.o mgag200_mode.o mgag200_cursor.o \ +mgag200-y := mgag200_main.o mgag200_mode.o \ mgag200_drv.o mgag200_i2c.o mgag200_ttm.o obj-$(CONFIG_DRM_MGAG200) += mgag200.o diff --git a/drivers/gpu/drm/mgag200/mgag200_cursor.c b/drivers/gpu/drm/mgag200/mgag200_cursor.c deleted file mode 100644 index d491edd317ff3..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 - */ - -#include - -#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 = (struct mga_device *)dev->dev_private; - 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_unlocked; - } - - 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_unlocked(obj); - - return 0; -err_drm_gem_vram_vunmap: - drm_gem_vram_vunmap(gbo, src); -err_drm_gem_object_put_unlocked: - drm_gem_object_put_unlocked(obj); - return ret; -} - -int mgag200_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) -{ - struct mga_device *mdev = (struct mga_device *)crtc->dev->dev_private; - - /* Our origin is at (64,64) */ - x += 64; - y += 64; - - mgag200_move_cursor(mdev, x, y); - - return 0; -} diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 9691252d6233f..c7f2000d46fce 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -121,11 +121,6 @@ struct mga_connector { struct mga_i2c_chan *i2c; }; -struct mga_cursor { - struct drm_gem_vram_object *gbo[2]; - unsigned int next_index; -}; - struct mga_mc { resource_size_t vram_size; resource_size_t vram_base; @@ -162,8 +157,6 @@ struct mga_device { struct mga_mc mc; struct mga_mode_info mode_info; - struct mga_cursor cursor; - size_t vram_fb_available; bool suspended; @@ -210,10 +203,4 @@ int mgag200_mm_init(struct mga_device *mdev); void mgag200_mm_fini(struct mga_device *mdev); int mgag200_mmap(struct file *filp, struct vm_area_struct *vma); -int mgag200_cursor_init(struct mga_device *mdev); -void mgag200_cursor_fini(struct mga_device *mdev); -int mgag200_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, - uint32_t handle, uint32_t width, uint32_t height); -int mgag200_crtc_cursor_move(struct drm_crtc *crtc, int x, int y); - #endif /* __MGAG200_DRV_H__ */ diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c index b680cf47cbb94..46cc32816f1e1 100644 --- a/drivers/gpu/drm/mgag200/mgag200_main.c +++ b/drivers/gpu/drm/mgag200/mgag200_main.c @@ -176,16 +176,10 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags) goto err_modeset; } - r = mgag200_cursor_init(mdev); - if (r) - dev_warn(&dev->pdev->dev, - "Could not initialize cursors. Not doing hardware cursors.\n"); - return 0; err_modeset: drm_mode_config_cleanup(dev); - mgag200_cursor_fini(mdev); mgag200_mm_fini(mdev); err_mm: dev->dev_private = NULL; @@ -201,7 +195,6 @@ void mgag200_driver_unload(struct drm_device *dev) return; mgag200_modeset_fini(mdev); drm_mode_config_cleanup(dev); - mgag200_cursor_fini(mdev); mgag200_mm_fini(mdev); dev->dev_private = NULL; } diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index d90e83959fca1..c9d120b019649 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -1414,8 +1414,6 @@ static void mga_crtc_disable(struct drm_crtc *crtc) /* These provide the minimum set of functions required to handle a CRTC */ static const struct drm_crtc_funcs mga_crtc_funcs = { - .cursor_set = mgag200_crtc_cursor_set, - .cursor_move = mgag200_crtc_cursor_move, .gamma_set = mga_crtc_gamma_set, .set_config = drm_crtc_helper_set_config, .destroy = mga_crtc_destroy, -- 2.26.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel