Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753830AbaGJWNn (ORCPT ); Thu, 10 Jul 2014 18:13:43 -0400 Received: from mail-wg0-f41.google.com ([74.125.82.41]:42157 "EHLO mail-wg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753091AbaGJVuv (ORCPT ); Thu, 10 Jul 2014 17:50:51 -0400 From: Oded Gabbay X-Google-Original-From: Oded Gabbay To: David Airlie , Alex Deucher , Jerome Glisse Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, John Bridgman , Andrew Lewycky , Joerg Roedel , Oded Gabbay , =?UTF-8?q?Christian=20K=C3=B6nig?= Subject: [PATCH 04/83] drm/radeon: Add radeon <--> kfd interface Date: Fri, 11 Jul 2014 00:50:04 +0300 Message-Id: <1405029027-6085-3-git-send-email-oded.gabbay@amd.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1405029027-6085-1-git-send-email-oded.gabbay@amd.com> References: <1405029027-6085-1-git-send-email-oded.gabbay@amd.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds the interface between the radeon driver and the kfd driver. The interface implementation is contained in radeon_kfd.c and radeon_kfd.h. The interface itself is represented by a pointer to struct kfd_dev. The pointer is located inside radeon_device structure. Signed-off-by: Oded Gabbay --- drivers/gpu/drm/radeon/Makefile | 1 + drivers/gpu/drm/radeon/radeon.h | 3 ++ drivers/gpu/drm/radeon/radeon_kfd.c | 94 +++++++++++++++++++++++++++++++++++++ include/linux/radeon_kfd.h | 67 ++++++++++++++++++++++++++ 4 files changed, 165 insertions(+) create mode 100644 drivers/gpu/drm/radeon/radeon_kfd.c create mode 100644 include/linux/radeon_kfd.h diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile index 1b04002..a1c913d 100644 --- a/drivers/gpu/drm/radeon/Makefile +++ b/drivers/gpu/drm/radeon/Makefile @@ -104,6 +104,7 @@ radeon-y += \ radeon_vce.o \ vce_v1_0.o \ vce_v2_0.o \ + radeon_kfd.o radeon-$(CONFIG_COMPAT) += radeon_ioc32.o radeon-$(CONFIG_VGA_SWITCHEROO) += radeon_atpx_handler.o diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 4e7e41f..90f66bb 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2340,6 +2340,9 @@ struct radeon_device { struct dev_pm_domain vga_pm_domain; bool have_disp_power_ref; + + /* HSA KFD interface */ + struct kfd_dev *kfd; }; bool radeon_is_px(struct drm_device *dev); diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c new file mode 100644 index 0000000..7c7f808 --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_kfd.c @@ -0,0 +1,94 @@ +/* + * Copyright 2014 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include "radeon.h" + +static const struct kfd2kgd_calls kfd2kgd = { +}; + +static const struct kgd2kfd_calls *kgd2kfd; + +bool radeon_kfd_init(void) +{ + bool (*kgd2kfd_init_p)(unsigned, const struct kfd2kgd_calls*, + const struct kgd2kfd_calls**); + + kgd2kfd_init_p = symbol_request(kgd2kfd_init); + + if (kgd2kfd_init_p == NULL) + return false; + + if (!kgd2kfd_init_p(KFD_INTERFACE_VERSION, &kfd2kgd, &kgd2kfd)) { + symbol_put(kgd2kfd_init); + kgd2kfd = NULL; + + return false; + } + + return true; +} + +void radeon_kfd_fini(void) +{ + if (kgd2kfd) { + kgd2kfd->exit(); + symbol_put(kgd2kfd_init); + } +} + +void radeon_kfd_device_probe(struct radeon_device *rdev) +{ + if (kgd2kfd) + rdev->kfd = kgd2kfd->probe((struct kgd_dev *)rdev, rdev->pdev); +} + +void radeon_kfd_device_init(struct radeon_device *rdev) +{ + if (rdev->kfd) { + struct kgd2kfd_shared_resources gpu_resources = { + .mmio_registers = rdev->rmmio, + + .compute_vmid_bitmap = 0xFF00, + + .first_compute_pipe = 1, + .compute_pipe_count = 8 - 1, + }; + + radeon_doorbell_get_kfd_info(rdev, + &gpu_resources.doorbell_physical_address, + &gpu_resources.doorbell_aperture_size, + &gpu_resources.doorbell_start_offset); + + kgd2kfd->device_init(rdev->kfd, &gpu_resources); + } +} + +void radeon_kfd_device_fini(struct radeon_device *rdev) +{ + if (rdev->kfd) { + kgd2kfd->device_exit(rdev->kfd); + rdev->kfd = NULL; + } +} diff --git a/include/linux/radeon_kfd.h b/include/linux/radeon_kfd.h new file mode 100644 index 0000000..59785e9 --- /dev/null +++ b/include/linux/radeon_kfd.h @@ -0,0 +1,67 @@ +/* + * Copyright 2014 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * radeon_kfd.h defines the private interface between the + * AMD kernel graphics drivers and the AMD radeon KFD. + */ + +#ifndef RADEON_KFD_H_INCLUDED +#define RADEON_KFD_H_INCLUDED + +#include +struct pci_dev; + +#define KFD_INTERFACE_VERSION 1 + +struct kfd_dev; +struct kgd_dev; + +struct kgd2kfd_shared_resources { + void __iomem *mmio_registers; /* Mapped pointer to GFX MMIO registers. */ + + unsigned int compute_vmid_bitmap; /* Bit n == 1 means VMID n is available for KFD. */ + + unsigned int first_compute_pipe; /* Compute pipes are counted starting from MEC0/pipe0 as 0. */ + unsigned int compute_pipe_count; /* Number of MEC pipes available for KFD. */ + + phys_addr_t doorbell_physical_address; /* Base address of doorbell aperture. */ + size_t doorbell_aperture_size; /* Size in bytes of doorbell aperture. */ + size_t doorbell_start_offset; /* Number of bytes at start of aperture reserved for KGD. */ +}; + +struct kgd2kfd_calls { + void (*exit)(void); + struct kfd_dev* (*probe)(struct kgd_dev *kgd, struct pci_dev *pdev); + bool (*device_init)(struct kfd_dev *kfd, const struct kgd2kfd_shared_resources *gpu_resources); + void (*device_exit)(struct kfd_dev *kfd); +}; + +struct kfd2kgd_calls { +}; + +bool kgd2kfd_init(unsigned interface_version, + const struct kfd2kgd_calls *f2g, + const struct kgd2kfd_calls **g2f); + +#endif + -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/