linux/include/sound/memalloc.h, branch v5.14

ALSA: core: Fix build error due to missing PAGE_SIZE

2021-06-10T11:10:09Z

The recent refactoring of memalloc stuff removed the inclusion of asm/page.h for simplicity, but it turned out this caused a compile error due the lack of PAGE_SIZE definition on some architectures. Do a partial revert for recovering from that. Fixes: 37af81c5998f ("ALSA: core: Abstract memory alloc helpers") Reported-by: kernel test robot Link: https://lore.kernel.org/r/202106101858.PfXMMuAa-lkp@intel.com Link: https://lore.kernel.org/r/20210610110935.10393-1-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: core: Move mmap handler into memalloc ops

2021-06-10T08:15:21Z

This patch moves the mmap handling code into the common memalloc handler. It allows us to reduce the memory-type specific code in PCM code gracefully. Link: https://lore.kernel.org/r/20210609162551.7842-5-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: core: Abstract memory alloc helpers

2021-06-10T08:15:21Z

This patch introduces the ops table to each memory allocation type (SNDRV_DMA_TYPE_XXX) and abstract the handling for the better code management. Then we get separate the page allocation, release and other tasks for each type, especially for the SG buffer. Each buffer type has now callbacks in the struct snd_malloc_ops, and the common helper functions call those ops accordingly. The former inline code that is specific to SG-buffer is moved into the local sgbuf.c, and we can simplify the PCM code without details of memory handling. Link: https://lore.kernel.org/r/20210609162551.7842-4-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: core: Drop snd_sgbuf_get_ptr()

2021-06-10T08:15:21Z

snd_sgbuf_get_ptr() and its sibling snd_pcm_sgbuf_get_ptr() are no longer used by any drivers. Let's drop them. Link: https://lore.kernel.org/r/20210609162551.7842-3-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: memalloc: Make SG-buffer helper usable for continuous buffer, too

2020-06-15T16:01:52Z

We have a few helper functions for making the access to the buffer address easier on SG-buffer. Those are specific to the buffer that is allocated with SG-buffer type, and it makes hard to use both SG and non-SG buffers in the same code. This patch adds a few simple checks and lets the helpers to deal with both SG- and continuous buffers gracefully. It's a preliminary step for the upcoming patch that mimics the buffer type on the fly. Link: https://lore.kernel.org/r/20200615160045.2703-4-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: memalloc: Drop snd_dma_pci_data() macro

2019-11-11T08:14:07Z

Now that all users have been converted, we can drop snd_dma_pci_data() macro definition. Link: https://lore.kernel.org/r/20191108164637.1110-1-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: memalloc: Add vmalloc buffer allocation support

2019-11-06T14:43:33Z

This patch adds the vmalloc buffer support to ALSA memalloc core. A new type, SNDRV_DMA_TYPE_VMALLOC was added. The vmalloc buffer has been already supported in the PCM via a few own helper functions, but the user sometimes get confused and misuse them. With this patch, the whole buffer management is integrated into the memalloc core, so they can be used in a sole common way. Link: https://lore.kernel.org/r/20191105080138.1260-3-tiwai@suse.de Signed-off-by: Takashi Iwai

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30T18:26:35Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman

ALSA: Replace snd_malloc_pages() and snd_free_pages() with standard helpers, take#2

2019-03-27T16:15:01Z

snd_malloc_pages() and snd_free_pages() are merely thin wrappers of the standard page allocator / free functions. Even the arguments are compatible with some standard helpers, so there is little merit of keeping these wrappers. This patch replaces the all existing callers of snd_malloc_pages() and snd_free_pages() with the direct calls of the standard helper functions. In this version, we use a recently introduced one, alloc_pages_exact(), which suits better than the old snd_malloc_pages() implementation for our purposes. Then we can avoid the waste of pages by alignment to power-of-two. Since alloc_pages_exact() does split pages, we need no longer __GFP_COMP flag; or better to say, we must not pass __GFP_COMP to alloc_pages_exact(). So the former unconditional addition of __GFP_COMP flag in snd_malloc_pages() is dropped, as well as in most other places. Reviewed-by: Takashi Sakamoto Acked-by: Michal Hocko Signed-off-by: Takashi Iwai

ALSA: isa: Avoid passing NULL to memory allocators

2019-02-01T16:16:40Z

We used to pass NULL to memory allocators for ISA devices due to historical reasons. But we prefer rather a proper device object to be assigned, so let's fix it by replacing snd_dma_isa_data() call with card->dev reference, and kill snd_dma_isa_data() definition. Reviewed-by: Christoph Hellwig Signed-off-by: Takashi Iwai