From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf1-f54.google.com (mail-lf1-f54.google.com [209.85.167.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA2B83A9D9D for ; Wed, 12 Aug 2026 20:55:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.54 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786568128; cv=none; b=GWDSysvwTJR05KUoXJZxBKbD9HkEu2Yl49e5zSxL2eqz8xrFWSzrpozHP/Z7c10Wv27gGa6bFABVwW1zV/PDHCAwuhKXkwKjVEE+V8S4phcZyQ1IIxl0oA8S5neZLONiR6GqL7uzRe0S4sZBg7w4BvrhWQsMKy9wh2mysly+zMM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786568128; c=relaxed/simple; bh=FOycCqunyoZT8bgxjzlkGYKt/0jU9FcTV7Q7HQv2ThM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=m1Rvj2Mn+vL+Pk5YXAufR7FH/B/zNGzrxcrJVP0T/K7vGGHBhBURVpwUq1T4FG7B2Kx9lzdKCVKVPXx4bFshYH0lsp5Q4tj/W9lwUvbxboWPk4+JERmeKPOrp3zl700VjGSHM8644zPy9pmAc4XDPuKUyykuDdzENtoIhcYfLTc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=OGl1XmWx; arc=none smtp.client-ip=209.85.167.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OGl1XmWx" Received: by mail-lf1-f54.google.com with SMTP id 2adb3069b0e04-5b015b2d792so1238485e87.3 for ; Wed, 12 Aug 2026 13:55:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1786568119; x=1787172919; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=i6ugBaIIKiiLCYgtPZsQcl5yA/18Djk/6dZvEnQ+uks=; b=OGl1XmWxG4ewYLrAqqMct19jvXPjpnj0tsZDIFeJJIWZJyBALrnDz5R4ryFScshGSI MwOXnGBwhP0EfOpp7y2yFqGPgq8nqYtGDEICN69gP5713E140KXooVmHoO5ZwbT+5Tq9 NSvQx5Zq0svMHhNLWYQnHPiAIv8YBB9Wu/QoNhkzb/EFBKgHXbtUnoDkXLNqq3f032yN R7qGqk9Uv2odmwD9fdgzkYvzNaRdbz8iP6KwmY7a8CPUUtV6GRvadIMbf3R6c89eXNhI 5smQyO8ljmpcKUMhsSQ5P9UVz7/rn+tNZZZPmG14SKTKFHfrdXZhKz69lT5vTGvll5an WD2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786568119; x=1787172919; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=i6ugBaIIKiiLCYgtPZsQcl5yA/18Djk/6dZvEnQ+uks=; b=dooZDm1SMRvJcew639CKa3f41Gi6MaGWQ7Hns2j0yjXoUVIvWj4Zz8hT0dsFQiVLKD cHNfAcZsFeRtu6/eSU63B0g6IPxMz2XyemGogsfhVZ78MT4ew0Nlk1cnsWgntZdXCjXW fHx8iKvhv7t4qAjITnLKh5VK5Rata1nFUOQY0uHAT6cxHPjn1WlWetQbjvWHIKGyHy4I RzkizfDAWlJ8EoyVwoPoSPFFYTnDQ0DSBCDgME+N2oaU2wzIczLitiSLB6lkKxUnNKDo LyVXxSN4yq6VzlHO5r5qy1Tn5/E67Wxxh+ygOXZtj2KZ5GjXzf4atKHr5ug6Fvlv5kxe qstQ== X-Forwarded-Encrypted: i=1; AHgh+Rp3G4QfPb2WW/D1EYpHajv4og1hVH6KsmSQ45gtJoIe6EjH8VH0/4Sk0tGDZv8VKTUNh8o4H6z3pJL/P0g=@vger.kernel.org X-Gm-Message-State: AOJu0YwDpbDEVEpl7e0lvhtAM7eG9I1Ml4b/yqYptFXrZJbL+nYtQ3El KeSywASyFaaoBlLjgugIw7pre9Pmg8s/4paCa2s1fSjXXDdB0g7bKII/ X-Gm-Gg: AR+sD13UMK7jZJkOz6fUTIV8giKPNcvME4bfkmlyXB2s5OVSaSvyUI2pF89GC0Quvmj Jtd+JPXoWWcvbDowU3A+jwSu4C35cBQFda9feielApciUsTckzjd3mwIRFZhhslYDF2jSW/LiQ0 MLOTHQ+YkCxF7e6492FkR8Bycoa7ActjTEFFf1et9KJvhG4VOQJ32NJGLHs1t2T4x4c4sQSVI4x f/VdxDZWgjQiuZoCulUxj5u7K/Wg5rkpsxYMDYsDYlOVllCaHX4YKdxjxwynRWJpkIMyYasKDTS WJI1OpUIlQCxVUPjqNllmzs64qc0eZ445ckdEm6LOK15Fr8kpctXYtS0QiULI65IwBsWO+Cn7W/ e1l0UZGrYFvLGfqL8axohbByXQQWkaLoK1u0HE1ndc7SI8GadKIVmyJi5ENTZuIrrOtJZyuVtV6 sbT02bH7gaz3rx238pqugOyy2Ly0mgaRSWaFfuyTHzLW8+P2LErky9L4m5iHA= X-Received: by 2002:a05:6512:61dc:20b0:5b4:4c28:2249 with SMTP id 2adb3069b0e04-5b453f454d2mr38340e87.24.1786568118761; Wed, 12 Aug 2026 13:55:18 -0700 (PDT) Received: from archlinux ([94.229.19.199]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5b4539e9605sm60999e87.22.2026.08.12.13.55.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Aug 2026 13:55:18 -0700 (PDT) From: Nikolay Kulikov To: Greg Kroah-Hartman , Hans de Goede , Mauro Carvalho Chehab , Sakari Ailus , Andy Shevchenko , Andy Shevchenko Cc: linux-media@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Nikolay Kulikov Subject: [PATCH v3 1/5] staging: media: atomisp: remove unused functions from pci/hmm/ Date: Wed, 12 Aug 2026 23:51:34 +0300 Message-ID: <20260812205429.39181-2-nikolayof23@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260812205429.39181-1-nikolayof23@gmail.com> References: <20260812205429.39181-1-nikolayof23@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit These functions are declared and defined but are not called anywhere. Signed-off-by: Nikolay Kulikov --- .../staging/media/atomisp/include/hmm/hmm.h | 16 --- .../media/atomisp/include/hmm/hmm_bo.h | 19 ---- drivers/staging/media/atomisp/pci/hmm/hmm.c | 41 -------- .../staging/media/atomisp/pci/hmm/hmm_bo.c | 97 ------------------- 4 files changed, 173 deletions(-) diff --git a/drivers/staging/media/atomisp/include/hmm/hmm.h b/drivers/staging/media/atomisp/include/hmm/hmm.h index a7aef27f54de..6bda02b9ff85 100644 --- a/drivers/staging/media/atomisp/include/hmm/hmm.h +++ b/drivers/staging/media/atomisp/include/hmm/hmm.h @@ -32,12 +32,6 @@ void hmm_free(ia_css_ptr ptr); int hmm_load(ia_css_ptr virt, void *data, unsigned int bytes); int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes); int hmm_set(ia_css_ptr virt, int c, unsigned int bytes); -int hmm_flush(ia_css_ptr virt, unsigned int bytes); - -/* - * get kernel memory physical address from ISP virtual address. - */ -phys_addr_t hmm_virt_to_phys(ia_css_ptr virt); /* * map ISP memory starts with virt to kernel virtual address @@ -55,16 +49,6 @@ void hmm_vunmap(ia_css_ptr virt); */ void hmm_flush_vmap(ia_css_ptr virt); -/* - * map ISP memory starts with virt to specific vma. - * - * used for mmap operation. - * - * virt must be the start address of ISP memory (return by hmm_alloc), - * do not pass any other address. - */ -int hmm_mmap(struct vm_area_struct *vma, ia_css_ptr virt); - extern struct hmm_bo_device bo_device; #endif diff --git a/drivers/staging/media/atomisp/include/hmm/hmm_bo.h b/drivers/staging/media/atomisp/include/hmm/hmm_bo.h index e09ac29ac43d..ba3c582a0f89 100644 --- a/drivers/staging/media/atomisp/include/hmm/hmm_bo.h +++ b/drivers/staging/media/atomisp/include/hmm/hmm_bo.h @@ -205,7 +205,6 @@ int hmm_bo_page_allocated(struct hmm_buffer_object *bo); */ int hmm_bo_bind(struct hmm_buffer_object *bo); void hmm_bo_unbind(struct hmm_buffer_object *bo); -int hmm_bo_binded(struct hmm_buffer_object *bo); /* * vmap buffer object's pages to contiguous kernel virtual address. @@ -224,17 +223,6 @@ void hmm_bo_flush_vmap(struct hmm_buffer_object *bo); */ void hmm_bo_vunmap(struct hmm_buffer_object *bo); -/* - * mmap the bo's physical pages to specific vma. - * - * vma's address space size must be the same as bo's size, - * otherwise it will return -EINVAL. - * - * vma->vm_flags will be set to (VM_RESERVED | VM_IO). - */ -int hmm_bo_mmap(struct vm_area_struct *vma, - struct hmm_buffer_object *bo); - /* * find the buffer object by its virtual address vaddr. * return NULL if no such buffer object found. @@ -251,11 +239,4 @@ struct hmm_buffer_object *hmm_bo_device_search_start( struct hmm_buffer_object *hmm_bo_device_search_in_range( struct hmm_bo_device *bdev, ia_css_ptr vaddr); -/* - * find the buffer object with kernel virtual address vaddr. - * return NULL if no such buffer object found. - */ -struct hmm_buffer_object *hmm_bo_device_search_vmap_start( - struct hmm_bo_device *bdev, const void *vaddr); - #endif diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm.c b/drivers/staging/media/atomisp/pci/hmm/hmm.c index f998b57f90c4..8130be4a30e3 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm.c @@ -262,12 +262,6 @@ int hmm_load(ia_css_ptr virt, void *data, unsigned int bytes) return load_and_flush(virt, data, bytes); } -/* Flush hmm data from the data cache */ -int hmm_flush(ia_css_ptr virt, unsigned int bytes) -{ - return load_and_flush(virt, NULL, bytes); -} - /* Write function in ISP memory management */ int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes) { @@ -411,41 +405,6 @@ int hmm_set(ia_css_ptr virt, int c, unsigned int bytes) return 0; } -/* Virtual address to physical address convert */ -phys_addr_t hmm_virt_to_phys(ia_css_ptr virt) -{ - unsigned int idx, offset; - struct hmm_buffer_object *bo; - - bo = hmm_bo_device_search_in_range(&bo_device, virt); - if (!bo) { - dev_err(atomisp_dev, - "can not find buffer object contains address 0x%x\n", - virt); - return -1; - } - - idx = (virt - bo->start) >> PAGE_SHIFT; - offset = (virt - bo->start) - (idx << PAGE_SHIFT); - - return page_to_phys(bo->pages[idx]) + offset; -} - -int hmm_mmap(struct vm_area_struct *vma, ia_css_ptr virt) -{ - struct hmm_buffer_object *bo; - - bo = hmm_bo_device_search_start(&bo_device, virt); - if (!bo) { - dev_err(atomisp_dev, - "can not find buffer object start with address 0x%x\n", - virt); - return -EINVAL; - } - - return hmm_bo_mmap(vma, bo); -} - /* Map ISP virtual address into IA virtual address */ void *hmm_vmap(ia_css_ptr virt, bool cached) { diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c index 0a8f401a1ca1..837077f1d229 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c @@ -578,31 +578,6 @@ struct hmm_buffer_object *hmm_bo_device_search_in_range( return bo; } -struct hmm_buffer_object *hmm_bo_device_search_vmap_start( - struct hmm_bo_device *bdev, const void *vaddr) -{ - struct list_head *pos; - struct hmm_buffer_object *bo; - unsigned long flags; - - check_bodev_null_return(bdev, NULL); - - spin_lock_irqsave(&bdev->list_lock, flags); - list_for_each(pos, &bdev->entire_bo_list) { - bo = list_to_hmm_bo(pos); - /* pass bo which has no vm_node allocated */ - if ((bo->status & HMM_BO_MASK) == HMM_BO_FREE) - continue; - if (bo->vmap_addr == vaddr) - goto found; - } - spin_unlock_irqrestore(&bdev->list_lock, flags); - return NULL; -found: - spin_unlock_irqrestore(&bdev->list_lock, flags); - return bo; -} - static void free_pages_bulk_array(unsigned long nr_pages, struct page **page_array) { unsigned long i; @@ -885,21 +860,6 @@ void hmm_bo_unbind(struct hmm_buffer_object *bo) "buffer vm or page not allocated or not binded yet.\n"); } -int hmm_bo_binded(struct hmm_buffer_object *bo) -{ - int ret; - - check_bo_null_return(bo, 0); - - mutex_lock(&bo->mutex); - - ret = bo->status & HMM_BO_BINDED; - - mutex_unlock(&bo->mutex); - - return ret; -} - void *hmm_bo_vmap(struct hmm_buffer_object *bo, bool cached) { check_bo_null_return(bo, NULL); @@ -1023,60 +983,3 @@ static const struct vm_operations_struct hmm_bo_vm_ops = { .open = hmm_bo_vm_open, .close = hmm_bo_vm_close, }; - -/* - * mmap the bo to user space. - */ -int hmm_bo_mmap(struct vm_area_struct *vma, struct hmm_buffer_object *bo) -{ - unsigned int start, end; - unsigned int virt; - unsigned int pgnr, i; - unsigned int pfn; - - check_bo_null_return(bo, -EINVAL); - - check_bo_status_yes_goto(bo, HMM_BO_PAGE_ALLOCED, status_err); - - pgnr = bo->pgnr; - start = vma->vm_start; - end = vma->vm_end; - - /* - * check vma's virtual address space size and buffer object's size. - * must be the same. - */ - if ((start + pgnr_to_size(pgnr)) != end) { - dev_warn(atomisp_dev, - "vma's address space size not equal to buffer object's size"); - return -EINVAL; - } - - virt = vma->vm_start; - for (i = 0; i < pgnr; i++) { - pfn = page_to_pfn(bo->pages[i]); - if (remap_pfn_range(vma, virt, pfn, PAGE_SIZE, PAGE_SHARED)) { - dev_warn(atomisp_dev, - "remap_pfn_range failed: virt = 0x%x, pfn = 0x%x, mapped_pgnr = %d\n", - virt, pfn, 1); - return -EINVAL; - } - virt += PAGE_SIZE; - } - - vma->vm_private_data = bo; - - vma->vm_ops = &hmm_bo_vm_ops; - vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); - - /* - * call hmm_bo_vm_open explicitly. - */ - hmm_bo_vm_open(vma); - - return 0; - -status_err: - dev_err(atomisp_dev, "buffer page not allocated yet.\n"); - return -EINVAL; -} -- 2.55.0