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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?MQ0ezOYSN034l3p28FXn9xIG1zjnD+nzp8ve8u/q26gNVCmwhrhkGLwDRnrq?= =?us-ascii?Q?p1AtXvYt6x/iLcAdmtxVTGrekY/9B0H9e17dxTWvSs3ro7XH8OqnYvgjctyi?= =?us-ascii?Q?hAT3DEMK9jmaKcfeXEUN+UORJZNR5VraPLJUxgeq33AXN0/Ga3esEnzCfWF8?= =?us-ascii?Q?cYmUX8VATXTbdjEHTo904LOYb9sIjpV+MOdnVQiSjEfYibCYQbeKxTBaRWON?= =?us-ascii?Q?0RAh9jaXnB5dOvOs+UDLOs++aee8K/IuF4mJ6jP2jPyasm75UasyO1I1SwXF?= =?us-ascii?Q?IAYNDpjF2eWfe8Z5dXbKGBIR96hkLqe93RCzDKTkh3Tq2UO/QxeHNCXaJgJX?= =?us-ascii?Q?phkaFh0qtO/cs1Mg35Ogmo4/b0ejWOAu83OUYvJuasejH19cE22TYsYtVYoZ?= =?us-ascii?Q?Efl7akGX8LVPlw1Bwi/A67N4wABTQLbvisg0QFhb5j1dA/gxpNa7LfDyHX//?= =?us-ascii?Q?hkXOHAvSP/85YNldEaE26tN8y/z1V6EUbcb3s1OLBUbxjSxaFFVnzO06TrTv?= =?us-ascii?Q?t6x80T1cOyYQgEKTzXE7eqTXUGHVww3NTSVObs4z9lUaC9oYbZriCv4nFIYp?= =?us-ascii?Q?Z16doudhLC/C/apYgEyUQx7hPvYBxNduXuN2cvJahRgXYsnuVhMA9tHRUNjr?= =?us-ascii?Q?INN+nCy++GOsCue9kxUPXIaCFivgSZpU/y+bj/o/+svexykZP5/WZRR2EXUs?= =?us-ascii?Q?kZRgJ+t9PLByafVQln1tx4OpghfxpbwxDXOE3XQpQacgh12G3RrBvSR2NqNS?= =?us-ascii?Q?yzk/tCpqPuXko+DISmwSMKh19Pi6jJ+23Fc1JZrzGxiS89tNHu4rk3oIesTG?= =?us-ascii?Q?FZZkKW1VkOW4s4CyvWXguVePo3V/1jhYCK1P4tPL8u4/mfV3wWbttT/tfSMO?= =?us-ascii?Q?9CwS5ey5YgpUAjnsM8R1Dv3bWKq9gct+EoxzkRVBPZem35as14plIoKtrCfF?= =?us-ascii?Q?kAd+SBpTwewmP6iNe0v1t2RfjAfp2jI2Y1UModLM9k6/o/dYgTsiuEgxLq8j?= =?us-ascii?Q?l7kjz8+ibVkma/XC3RGzFByPyDm5PFy4gPCsg3Mj6yllmW099rLBc7aiH0rg?= =?us-ascii?Q?3NQFddsdNn06b0F5K25kUQ9v/YlyjdwqoCCekvydxBY7XBBxtJQ6eGoOSIzl?= =?us-ascii?Q?NzCNJei0FZPQAyeQWJmiVXslP8hpWzM0hQULaPaFRqFZRa/Ojp5aDFycaWm3?= =?us-ascii?Q?nqRn/Y0Vqht8geaqXa3MccYSUO0upskWcGEmbh0k68iafYKAqgqFpm7CBRiI?= =?us-ascii?Q?1K8TVxxgMeW83bzpWCaxGwSOD3ozlhuJoScG1mBQhFJTDjQGI4eeqPT42UBU?= =?us-ascii?Q?/dCjv18jwSZ2YiHOWR6QmHT3w4MCY+DZ4uTNMF9UbTkB/v49ccAOk3sRRHFx?= =?us-ascii?Q?j9WEMGz1xr9Fg4TEzE6dwzPrObi8MmRKX8zZsrfK76d9UGXLZ166CNjXzxeI?= =?us-ascii?Q?7vpqfIXEAtVQyIpmJwREa+lO/u7gqnEJ776XLxlG4/h6wD+D8iK3gsxUx6Jl?= =?us-ascii?Q?L4ZtG0q8EWPypBPeP/ev6XYcXZJ9N4pOdECcBeYFzCwU7O9TdcnpGTmzdLvG?= =?us-ascii?Q?zFj+re8+MIjLq+7tOMx1qNwAz8177nmTeFUYPRUh?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: dce7c2be-5135-40c5-3e67-08dafdce8503 X-MS-Exchange-CrossTenant-AuthSource: BYAPR12MB3176.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jan 2023 05:47:46.4737 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 4bUO7RKaOO6s4F4e1iuGBwzHgY6c56ikphacUw6tEg55g8qiUZhyhJ5szsNdzx7+4LaiP2JM4fwr7+DRYiellw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7793 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To charge pinned pages against the pins cgroup drivers must use the vm_account_pinned() functions which requires initialisation of a struct vm_account. Convert the dfl-afu-region code to do this and charge any pins to the pins cgroup. Signed-off-by: Alistair Popple Cc: Wu Hao Cc: Tom Rix Cc: Moritz Fischer Cc: Xu Yilun Cc: linux-fpga@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/fpga/dfl-afu-dma-region.c | 11 ++++++++--- drivers/fpga/dfl-afu.h | 1 + 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c index 02b60fd..3b99784 100644 --- a/drivers/fpga/dfl-afu-dma-region.c +++ b/drivers/fpga/dfl-afu-dma-region.c @@ -38,7 +38,7 @@ static int afu_dma_pin_pages(struct dfl_feature_platform_data *pdata, struct device *dev = &pdata->dev->dev; int ret, pinned; - ret = account_locked_vm(current->mm, npages, true); + ret = vm_account_pinned(®ion->vm_account, npages); if (ret) return ret; @@ -67,7 +67,7 @@ static int afu_dma_pin_pages(struct dfl_feature_platform_data *pdata, free_pages: kfree(region->pages); unlock_vm: - account_locked_vm(current->mm, npages, false); + vm_unaccount_pinned(®ion->vm_account, npages); return ret; } @@ -87,7 +87,7 @@ static void afu_dma_unpin_pages(struct dfl_feature_platform_data *pdata, unpin_user_pages(region->pages, npages); kfree(region->pages); - account_locked_vm(current->mm, npages, false); + vm_unaccount_pinned(®ion->vm_account, npages); dev_dbg(dev, "%ld pages unpinned\n", npages); } @@ -223,6 +223,7 @@ void afu_dma_region_destroy(struct dfl_feature_platform_data *pdata) afu_dma_unpin_pages(pdata, region); node = rb_next(node); + vm_account_release(®ion->vm_account); kfree(region); } } @@ -322,6 +323,8 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata, region->user_addr = user_addr; region->length = length; + vm_account_init_current(®ion->vm_account); + /* Pin the user memory region */ ret = afu_dma_pin_pages(pdata, region); if (ret) { @@ -365,6 +368,7 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata, unpin_pages: afu_dma_unpin_pages(pdata, region); free_region: + vm_account_release(®ion->vm_account); kfree(region); return ret; } @@ -399,6 +403,7 @@ int afu_dma_unmap_region(struct dfl_feature_platform_data *pdata, u64 iova) dma_unmap_page(dfl_fpga_pdata_to_parent(pdata), region->iova, region->length, DMA_BIDIRECTIONAL); afu_dma_unpin_pages(pdata, region); + vm_account_release(®ion->vm_account); kfree(region); return 0; diff --git a/drivers/fpga/dfl-afu.h b/drivers/fpga/dfl-afu.h index e5020e2..b1554e0 100644 --- a/drivers/fpga/dfl-afu.h +++ b/drivers/fpga/dfl-afu.h @@ -51,6 +51,7 @@ struct dfl_afu_mmio_region { * @in_use: flag to indicate if this region is in_use. */ struct dfl_afu_dma_region { + struct vm_account vm_account; u64 user_addr; u64 length; u64 iova; -- git-series 0.9.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alistair Popple Subject: [RFC PATCH 13/19] fpga: dfl: afu: convert to use vm_account Date: Tue, 24 Jan 2023 16:42:42 +1100 Message-ID: References: Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=JHkCArMXy0OdvLO0RAQFjr57zAUQQNccPb96BhM7l+4=; b=OkXIWNgxDiDGgLHMtSXGhlKxx0DPyHdvKoo49YG7qSKBVhYDH7Jtf/cYs2RfT4U6O176yq+tfUybhgU98BeBOSnKW8EMf+NhWXp89QLNQhE9d6v19q0GBmTVyQaGNZ21AmS0Pm5J1lUc8uRpV2+AYq2oxyJzG7ljaEHxgdUzPqxx3IOXGPyXhs5GN7OI5HaFG8igNzgTxI6cg+3KJNaM7ehzmpYXV4IzFbmbZETJyM4p4uNW0xQtnhxPnfypsAFvgtPbmJXiU5tkyo8S+qfbCTqA7rF7JFrRQwXPy0Lnhig8hG1GkHE4s/xSAWw6/N1DD4+J1Hf74Gh//3INslQcbQ== In-Reply-To: List-ID: Content-Type: text/plain; charset="us-ascii" To: linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, jgg-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, jhubbard-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, tjmercier-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org, surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, mkoutny-IBi9RG/b67k@public.gmane.org, daniel-/w4YWyX8dFk@public.gmane.org, Alistair Popple , Wu Hao , Tom Rix , Moritz Fischer , Xu Yilun , linux-fpga-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To charge pinned pages against the pins cgroup drivers must use the vm_account_pinned() functions which requires initialisation of a struct vm_account. Convert the dfl-afu-region code to do this and charge any pins to the pins cgroup. Signed-off-by: Alistair Popple Cc: Wu Hao Cc: Tom Rix Cc: Moritz Fischer Cc: Xu Yilun Cc: linux-fpga-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org --- drivers/fpga/dfl-afu-dma-region.c | 11 ++++++++--- drivers/fpga/dfl-afu.h | 1 + 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c index 02b60fd..3b99784 100644 --- a/drivers/fpga/dfl-afu-dma-region.c +++ b/drivers/fpga/dfl-afu-dma-region.c @@ -38,7 +38,7 @@ static int afu_dma_pin_pages(struct dfl_feature_platform_data *pdata, struct device *dev = &pdata->dev->dev; int ret, pinned; - ret = account_locked_vm(current->mm, npages, true); + ret = vm_account_pinned(®ion->vm_account, npages); if (ret) return ret; @@ -67,7 +67,7 @@ static int afu_dma_pin_pages(struct dfl_feature_platform_data *pdata, free_pages: kfree(region->pages); unlock_vm: - account_locked_vm(current->mm, npages, false); + vm_unaccount_pinned(®ion->vm_account, npages); return ret; } @@ -87,7 +87,7 @@ static void afu_dma_unpin_pages(struct dfl_feature_platform_data *pdata, unpin_user_pages(region->pages, npages); kfree(region->pages); - account_locked_vm(current->mm, npages, false); + vm_unaccount_pinned(®ion->vm_account, npages); dev_dbg(dev, "%ld pages unpinned\n", npages); } @@ -223,6 +223,7 @@ void afu_dma_region_destroy(struct dfl_feature_platform_data *pdata) afu_dma_unpin_pages(pdata, region); node = rb_next(node); + vm_account_release(®ion->vm_account); kfree(region); } } @@ -322,6 +323,8 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata, region->user_addr = user_addr; region->length = length; + vm_account_init_current(®ion->vm_account); + /* Pin the user memory region */ ret = afu_dma_pin_pages(pdata, region); if (ret) { @@ -365,6 +368,7 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata, unpin_pages: afu_dma_unpin_pages(pdata, region); free_region: + vm_account_release(®ion->vm_account); kfree(region); return ret; } @@ -399,6 +403,7 @@ int afu_dma_unmap_region(struct dfl_feature_platform_data *pdata, u64 iova) dma_unmap_page(dfl_fpga_pdata_to_parent(pdata), region->iova, region->length, DMA_BIDIRECTIONAL); afu_dma_unpin_pages(pdata, region); + vm_account_release(®ion->vm_account); kfree(region); return 0; diff --git a/drivers/fpga/dfl-afu.h b/drivers/fpga/dfl-afu.h index e5020e2..b1554e0 100644 --- a/drivers/fpga/dfl-afu.h +++ b/drivers/fpga/dfl-afu.h @@ -51,6 +51,7 @@ struct dfl_afu_mmio_region { * @in_use: flag to indicate if this region is in_use. */ struct dfl_afu_dma_region { + struct vm_account vm_account; u64 user_addr; u64 length; u64 iova; -- git-series 0.9.1