| /************************************************************************** |
| * |
| * Copyright 2011 Intel Corporation |
| * Copyright 2012 Francisco Jerez |
| * All Rights Reserved. |
| * |
| * 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, sub license, 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 (including the |
| * next paragraph) 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 NON-INFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. |
| * |
| * Authors: |
| * Kristian Høgsberg <krh@bitplanet.net> |
| * Benjamin Franzke <benjaminfranzke@googlemail.com> |
| * |
| **************************************************************************/ |
| |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <xf86drm.h> |
| #include <unistd.h> |
| |
| #include "loader.h" |
| #include "target-helpers/drm_helper_public.h" |
| #include "state_tracker/drm_driver.h" |
| #include "pipe_loader_priv.h" |
| |
| #include "util/u_memory.h" |
| #include "util/u_dl.h" |
| #include "util/u_debug.h" |
| |
| #define DRM_RENDER_NODE_DEV_NAME_FORMAT "%s/renderD%d" |
| #define DRM_RENDER_NODE_MAX_NODES 63 |
| #define DRM_RENDER_NODE_MIN_MINOR 128 |
| #define DRM_RENDER_NODE_MAX_MINOR (DRM_RENDER_NODE_MIN_MINOR + DRM_RENDER_NODE_MAX_NODES) |
| |
| struct pipe_loader_drm_device { |
| struct pipe_loader_device base; |
| const struct drm_driver_descriptor *dd; |
| #ifndef GALLIUM_STATIC_TARGETS |
| struct util_dl_library *lib; |
| #endif |
| int fd; |
| }; |
| |
| #define pipe_loader_drm_device(dev) ((struct pipe_loader_drm_device *)dev) |
| |
| static const struct pipe_loader_ops pipe_loader_drm_ops; |
| |
| #ifdef GALLIUM_STATIC_TARGETS |
| static const struct drm_conf_ret throttle_ret = { |
| DRM_CONF_INT, |
| {2}, |
| }; |
| |
| static const struct drm_conf_ret share_fd_ret = { |
| DRM_CONF_BOOL, |
| {true}, |
| }; |
| |
| static inline const struct drm_conf_ret * |
| configuration_query(enum drm_conf conf) |
| { |
| switch (conf) { |
| case DRM_CONF_THROTTLE: |
| return &throttle_ret; |
| case DRM_CONF_SHARE_FD: |
| return &share_fd_ret; |
| default: |
| break; |
| } |
| return NULL; |
| } |
| |
| static const struct drm_driver_descriptor driver_descriptors[] = { |
| { |
| .driver_name = "i915", |
| .create_screen = pipe_i915_create_screen, |
| .configuration = configuration_query, |
| }, |
| #ifdef USE_VC4_SIMULATOR |
| /* VC4 simulator and ILO (i965) are mutually exclusive (error at |
| * configure). As the latter is unconditionally added, keep this one above |
| * it. |
| */ |
| { |
| .driver_name = "i965", |
| .create_screen = pipe_vc4_create_screen, |
| .configuration = configuration_query, |
| }, |
| #endif |
| { |
| .driver_name = "i965", |
| .create_screen = pipe_ilo_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "nouveau", |
| .create_screen = pipe_nouveau_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "r300", |
| .create_screen = pipe_r300_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "r600", |
| .create_screen = pipe_r600_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "radeonsi", |
| .create_screen = pipe_radeonsi_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "vmwgfx", |
| .create_screen = pipe_vmwgfx_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "kgsl", |
| .create_screen = pipe_freedreno_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "msm", |
| .create_screen = pipe_freedreno_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "virtio_gpu", |
| .create_screen = pipe_virgl_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "vc4", |
| .create_screen = pipe_vc4_create_screen, |
| .configuration = configuration_query, |
| }, |
| { |
| .driver_name = "etnaviv", |
| .create_screen = pipe_etna_create_screen, |
| .configuration = configuration_query, |
| } |
| }; |
| #endif |
| |
| bool |
| pipe_loader_drm_probe_fd(struct pipe_loader_device **dev, int fd) |
| { |
| struct pipe_loader_drm_device *ddev = CALLOC_STRUCT(pipe_loader_drm_device); |
| int vendor_id, chip_id; |
| |
| if (!ddev) |
| return false; |
| |
| if (loader_get_pci_id_for_fd(fd, &vendor_id, &chip_id)) { |
| ddev->base.type = PIPE_LOADER_DEVICE_PCI; |
| ddev->base.u.pci.vendor_id = vendor_id; |
| ddev->base.u.pci.chip_id = chip_id; |
| } else { |
| ddev->base.type = PIPE_LOADER_DEVICE_PLATFORM; |
| } |
| ddev->base.ops = &pipe_loader_drm_ops; |
| ddev->fd = fd; |
| |
| ddev->base.driver_name = loader_get_driver_for_fd(fd); |
| if (!ddev->base.driver_name) |
| goto fail; |
| |
| #ifdef GALLIUM_STATIC_TARGETS |
| for (int i = 0; i < ARRAY_SIZE(driver_descriptors); i++) { |
| if (strcmp(driver_descriptors[i].driver_name, ddev->base.driver_name) == 0) { |
| ddev->dd = &driver_descriptors[i]; |
| break; |
| } |
| } |
| if (!ddev->dd) |
| goto fail; |
| #else |
| ddev->lib = pipe_loader_find_module(&ddev->base, PIPE_SEARCH_DIR); |
| if (!ddev->lib) |
| goto fail; |
| |
| ddev->dd = (const struct drm_driver_descriptor *) |
| util_dl_get_proc_address(ddev->lib, "driver_descriptor"); |
| |
| /* sanity check on the driver name */ |
| if (!ddev->dd || strcmp(ddev->dd->driver_name, ddev->base.driver_name) != 0) |
| goto fail; |
| #endif |
| |
| *dev = &ddev->base; |
| return true; |
| |
| fail: |
| #ifndef GALLIUM_STATIC_TARGETS |
| if (ddev->lib) |
| util_dl_close(ddev->lib); |
| #endif |
| FREE(ddev); |
| return false; |
| } |
| |
| static int |
| open_drm_render_node_minor(int minor) |
| { |
| char path[PATH_MAX]; |
| snprintf(path, sizeof(path), DRM_RENDER_NODE_DEV_NAME_FORMAT, DRM_DIR_NAME, |
| minor); |
| return loader_open_device(path); |
| } |
| |
| int |
| pipe_loader_drm_probe(struct pipe_loader_device **devs, int ndev) |
| { |
| int i, j, fd; |
| |
| for (i = DRM_RENDER_NODE_MIN_MINOR, j = 0; |
| i <= DRM_RENDER_NODE_MAX_MINOR; i++) { |
| struct pipe_loader_device *dev; |
| |
| fd = open_drm_render_node_minor(i); |
| if (fd < 0) |
| continue; |
| |
| if (!pipe_loader_drm_probe_fd(&dev, fd)) { |
| close(fd); |
| continue; |
| } |
| |
| if (j < ndev) { |
| devs[j] = dev; |
| } else { |
| close(fd); |
| dev->ops->release(&dev); |
| } |
| j++; |
| } |
| |
| return j; |
| } |
| |
| static void |
| pipe_loader_drm_release(struct pipe_loader_device **dev) |
| { |
| struct pipe_loader_drm_device *ddev = pipe_loader_drm_device(*dev); |
| |
| #ifndef GALLIUM_STATIC_TARGETS |
| if (ddev->lib) |
| util_dl_close(ddev->lib); |
| #endif |
| |
| close(ddev->fd); |
| FREE(ddev->base.driver_name); |
| FREE(ddev); |
| *dev = NULL; |
| } |
| |
| static const struct drm_conf_ret * |
| pipe_loader_drm_configuration(struct pipe_loader_device *dev, |
| enum drm_conf conf) |
| { |
| struct pipe_loader_drm_device *ddev = pipe_loader_drm_device(dev); |
| |
| if (!ddev->dd->configuration) |
| return NULL; |
| |
| return ddev->dd->configuration(conf); |
| } |
| |
| static struct pipe_screen * |
| pipe_loader_drm_create_screen(struct pipe_loader_device *dev) |
| { |
| struct pipe_loader_drm_device *ddev = pipe_loader_drm_device(dev); |
| |
| return ddev->dd->create_screen(ddev->fd); |
| } |
| |
| static const struct pipe_loader_ops pipe_loader_drm_ops = { |
| .create_screen = pipe_loader_drm_create_screen, |
| .configuration = pipe_loader_drm_configuration, |
| .release = pipe_loader_drm_release |
| }; |