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Mercier" , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , Tomasz Figa , Mauro Carvalho Chehab Cc: Hans Verkuil , Laurent Pinchart , linux-mm@kvack.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Maxime Ripard X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1940; i=mripard@kernel.org; h=from:subject:message-id; bh=/UAL0ad49jcngOkD0mAWDzGa0d7QjTxM4lCTP33f5+4=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDOnnrm7clPp7wa7PzbMebqtakmhdV8Nk65B7SrPty7XjK 546TVoQ31HKwiDGxSArpsgSI2y+JO7UrNedbHzzYOawMoEMYeDiFICJ6D9lZLjvfGnBE4fJ51rT XGQSXjNW8Zds/rg3XKTr0/Zcla3x38sZ/nsuda/5n79f3Cd/QfOtqvsy1hW2Zwvk/Y8uXZIpX33 FnAkA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: F29D71C0020 X-Stat-Signature: eif898syibia6dcbxa6y5usadptqq531 X-Rspam-User: X-HE-Tag: 1741608387-521793 X-HE-Meta: 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 uiHjWWy8 9rAVOKcmjjrDsi2Rrl5F6lfAh1xuIqlh1R4RVod+JMteJs7qbh5+fJkfukkY0NkzAaALQ95bqgHyGYBd+OqwGWH/UQU5fH62MZ8+lXlAbUwlKCnI3L3Y7vf9AheI1vWZ25d7REisbpYsRK3diU64AB0uBvN60PpLcKtAHElsmv+XMfdGYVE9QcHohj5KA+F0NYOQgmd+2VgiVKc6W8WWxQor2+/2HADT/c9Hbjlcg9GNsX1+maebU5wTgIb0sIgCrAGw8SItcNxZVeBXuE6Mvy1pGQ2ZCe9Ovc3q6cK3OPqBn5exKwI7u+08aaoUXqJTtAX9yegc6vVLcYripKwCQFjkkc32zJo6Pt1v0AK+8L+ymQQs= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: There can be several coherent memory region in the system, and all of them might end up being used to allocate a DMA buffer. Let's register a dmem region for each of them to make sure we can track those allocations. Signed-off-by: Maxime Ripard --- kernel/dma/coherent.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c index 3b2bdca9f1d4b0274bf4874892b94730cd05c5df..2a2d515e43acbdef19c14d8840ed90e48e7ebb43 100644 --- a/kernel/dma/coherent.c +++ b/kernel/dma/coherent.c @@ -5,10 +5,11 @@ */ #include #include #include #include +#include #include #include struct dma_coherent_mem { void *virt_base; @@ -16,10 +17,12 @@ struct dma_coherent_mem { unsigned long pfn_base; int size; unsigned long *bitmap; spinlock_t spinlock; bool use_dev_dma_pfn_offset; + + struct dmem_cgroup_region *dmem_cgroup_region; }; static inline struct dma_coherent_mem *dev_get_coherent_memory(struct device *dev) { if (dev && dev->dma_mem) @@ -335,16 +338,25 @@ static phys_addr_t dma_reserved_default_memory_size __initdata; #endif static int rmem_dma_device_init(struct reserved_mem *rmem, struct device *dev) { if (!rmem->priv) { + struct dmem_cgroup_region *region; struct dma_coherent_mem *mem; mem = dma_init_coherent_memory(rmem->base, rmem->base, rmem->size, true); if (IS_ERR(mem)) return PTR_ERR(mem); + + region = dmem_cgroup_register_region(rmem->size, + "dma/coherent/%s", + rmem->name); + if (IS_ERR(region)) + return PTR_ERR(region); + + mem->dmem_cgroup_region = region; rmem->priv = mem; } dma_assign_coherent_memory(dev, rmem->priv); return 0; } -- 2.48.1