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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
drm/i915: Extract i915_module.c
The module init code is somewhat misplaced in i915_pci.c, since it needs to pull in init/exit functions from every part of the driver and pollutes the include list a lot. Extract an i915_module.c file which pulls all the bits together, and allows us to massively trim the include list of i915_pci.c. The downside is that have to drop the error path check Jason added to catch when we set up the pci driver too early. I think that risk is acceptable for this pretty nice include. Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Cc: Jason Ekstrand <jason@jlekstrand.net> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210727121037.2041102-11-daniel.vetter@ffwll.ch
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parent
bb13ea2825
commit
708b7df348
4 changed files with 125 additions and 114 deletions
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@ -38,6 +38,7 @@ i915-y += i915_drv.o \
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i915_irq.o \
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i915_getparam.o \
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i915_mitigations.o \
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i915_module.o \
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i915_params.o \
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i915_pci.o \
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i915_scatterlist.o \
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113
drivers/gpu/drm/i915/i915_module.c
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113
drivers/gpu/drm/i915/i915_module.c
Normal file
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@ -0,0 +1,113 @@
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/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2021 Intel Corporation
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*/
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#include <linux/console.h>
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#include "gem/i915_gem_context.h"
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#include "gem/i915_gem_object.h"
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#include "i915_active.h"
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#include "i915_buddy.h"
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#include "i915_params.h"
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#include "i915_pci.h"
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#include "i915_perf.h"
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#include "i915_request.h"
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#include "i915_scheduler.h"
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#include "i915_selftest.h"
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#include "i915_vma.h"
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static int i915_check_nomodeset(void)
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{
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bool use_kms = true;
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/*
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* Enable KMS by default, unless explicitly overriden by
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* either the i915.modeset prarameter or by the
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* vga_text_mode_force boot option.
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*/
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if (i915_modparams.modeset == 0)
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use_kms = false;
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if (vgacon_text_force() && i915_modparams.modeset == -1)
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use_kms = false;
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if (!use_kms) {
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/* Silently fail loading to not upset userspace. */
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DRM_DEBUG_DRIVER("KMS disabled.\n");
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return 1;
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}
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return 0;
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}
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static const struct {
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int (*init)(void);
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void (*exit)(void);
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} init_funcs[] = {
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{ i915_check_nomodeset, NULL },
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{ i915_active_module_init, i915_active_module_exit },
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{ i915_buddy_module_init, i915_buddy_module_exit },
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{ i915_context_module_init, i915_context_module_exit },
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{ i915_gem_context_module_init, i915_gem_context_module_exit },
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{ i915_objects_module_init, i915_objects_module_exit },
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{ i915_request_module_init, i915_request_module_exit },
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{ i915_scheduler_module_init, i915_scheduler_module_exit },
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{ i915_vma_module_init, i915_vma_module_exit },
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{ i915_mock_selftests, NULL },
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{ i915_pmu_init, i915_pmu_exit },
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{ i915_register_pci_driver, i915_unregister_pci_driver },
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{ i915_perf_sysctl_register, i915_perf_sysctl_unregister },
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};
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static int init_progress;
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static int __init i915_init(void)
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{
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int err, i;
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for (i = 0; i < ARRAY_SIZE(init_funcs); i++) {
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err = init_funcs[i].init();
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if (err < 0) {
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while (i--) {
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if (init_funcs[i].exit)
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init_funcs[i].exit();
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}
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return err;
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} else if (err > 0) {
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/*
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* Early-exit success is reserved for things which
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* don't have an exit() function because we have no
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* idea how far they got or how to partially tear
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* them down.
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*/
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WARN_ON(init_funcs[i].exit);
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break;
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}
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}
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init_progress = i;
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return 0;
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}
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static void __exit i915_exit(void)
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{
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int i;
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for (i = init_progress - 1; i >= 0; i--) {
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GEM_BUG_ON(i >= ARRAY_SIZE(init_funcs));
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if (init_funcs[i].exit)
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init_funcs[i].exit();
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}
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}
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module_init(i915_init);
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module_exit(i915_exit);
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MODULE_AUTHOR("Tungsten Graphics, Inc.");
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MODULE_AUTHOR("Intel Corporation");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL and additional rights");
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@ -22,24 +22,13 @@
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*
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*/
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#include <linux/console.h>
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#include <linux/vga_switcheroo.h>
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#include <drm/drm_drv.h>
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#include <drm/i915_pciids.h>
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#include "display/intel_fbdev.h"
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#include "i915_active.h"
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#include "i915_buddy.h"
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#include "i915_drv.h"
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#include "gem/i915_gem_context.h"
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#include "gem/i915_gem_object.h"
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#include "i915_request.h"
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#include "i915_perf.h"
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#include "i915_selftest.h"
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#include "i915_scheduler.h"
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#include "i915_vma.h"
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#include "i915_pci.h"
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#define PLATFORM(x) .platform = (x)
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#define GEN(x) \
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@ -1216,31 +1205,6 @@ static void i915_pci_shutdown(struct pci_dev *pdev)
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i915_driver_shutdown(i915);
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}
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static int i915_check_nomodeset(void)
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{
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bool use_kms = true;
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/*
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* Enable KMS by default, unless explicitly overriden by
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* either the i915.modeset prarameter or by the
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* vga_text_mode_force boot option.
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*/
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if (i915_modparams.modeset == 0)
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use_kms = false;
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if (vgacon_text_force() && i915_modparams.modeset == -1)
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use_kms = false;
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if (!use_kms) {
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/* Silently fail loading to not upset userspace. */
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DRM_DEBUG_DRIVER("KMS disabled.\n");
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return 1;
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}
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return 0;
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}
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static struct pci_driver i915_pci_driver = {
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.name = DRIVER_NAME,
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.id_table = pciidlist,
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@ -1250,87 +1214,12 @@ static struct pci_driver i915_pci_driver = {
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.driver.pm = &i915_pm_ops,
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};
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static int i915_register_pci_driver(void)
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int i915_register_pci_driver(void)
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{
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return pci_register_driver(&i915_pci_driver);
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}
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static void i915_unregister_pci_driver(void)
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void i915_unregister_pci_driver(void)
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{
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pci_unregister_driver(&i915_pci_driver);
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}
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static const struct {
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int (*init)(void);
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void (*exit)(void);
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} init_funcs[] = {
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{ i915_check_nomodeset, NULL },
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{ i915_active_module_init, i915_active_module_exit },
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{ i915_buddy_module_init, i915_buddy_module_exit },
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{ i915_context_module_init, i915_context_module_exit },
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{ i915_gem_context_module_init, i915_gem_context_module_exit },
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{ i915_objects_module_init, i915_objects_module_exit },
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{ i915_request_module_init, i915_request_module_exit },
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{ i915_scheduler_module_init, i915_scheduler_module_exit },
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{ i915_vma_module_init, i915_vma_module_exit },
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{ i915_mock_selftests, NULL },
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{ i915_pmu_init, i915_pmu_exit },
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{ i915_register_pci_driver, i915_unregister_pci_driver },
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{ i915_perf_sysctl_register, i915_perf_sysctl_unregister },
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};
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static int init_progress;
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static int __init i915_init(void)
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{
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int err, i;
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for (i = 0; i < ARRAY_SIZE(init_funcs); i++) {
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err = init_funcs[i].init();
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if (err < 0) {
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while (i--) {
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if (init_funcs[i].exit)
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init_funcs[i].exit();
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}
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return err;
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} else if (err > 0) {
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/*
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* Early-exit success is reserved for things which
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* don't have an exit() function because we have no
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* idea how far they got or how to partially tear
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* them down.
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*/
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WARN_ON(init_funcs[i].exit);
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/*
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* We don't want to advertise devices with an only
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* partially initialized driver.
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*/
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WARN_ON(i915_pci_driver.driver.owner);
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break;
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}
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}
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init_progress = i;
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return 0;
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}
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static void __exit i915_exit(void)
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{
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int i;
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for (i = init_progress - 1; i >= 0; i--) {
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GEM_BUG_ON(i >= ARRAY_SIZE(init_funcs));
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if (init_funcs[i].exit)
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init_funcs[i].exit();
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}
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}
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module_init(i915_init);
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module_exit(i915_exit);
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MODULE_AUTHOR("Tungsten Graphics, Inc.");
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MODULE_AUTHOR("Intel Corporation");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL and additional rights");
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8
drivers/gpu/drm/i915/i915_pci.h
Normal file
8
drivers/gpu/drm/i915/i915_pci.h
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@ -0,0 +1,8 @@
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/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2021 Intel Corporation
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*/
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int i915_register_pci_driver(void);
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void i915_unregister_pci_driver(void);
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