[PATCH v2 11/11] drm/i915: Extract i915_module.c
Daniel Vetter
daniel.vetter at ffwll.ch
Tue Jul 27 12:10:37 UTC 2021
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.
Cc: Jason Ekstrand <jason at jlekstrand.net>
Cc: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/i915_module.c | 113 ++++++++++++++++++++++++++++
drivers/gpu/drm/i915/i915_pci.c | 117 +----------------------------
drivers/gpu/drm/i915/i915_pci.h | 8 ++
4 files changed, 125 insertions(+), 114 deletions(-)
create mode 100644 drivers/gpu/drm/i915/i915_module.c
create mode 100644 drivers/gpu/drm/i915/i915_pci.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 9022dc638ed6..4ebd9f417ddb 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -38,6 +38,7 @@ i915-y += i915_drv.o \
i915_irq.o \
i915_getparam.o \
i915_mitigations.o \
+ i915_module.o \
i915_params.o \
i915_pci.o \
i915_scatterlist.o \
diff --git a/drivers/gpu/drm/i915/i915_module.c b/drivers/gpu/drm/i915/i915_module.c
new file mode 100644
index 000000000000..c578ea8f56a0
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_module.c
@@ -0,0 +1,113 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2021 Intel Corporation
+ */
+
+#include <linux/console.h>
+
+#include "gem/i915_gem_context.h"
+#include "gem/i915_gem_object.h"
+#include "i915_active.h"
+#include "i915_buddy.h"
+#include "i915_params.h"
+#include "i915_pci.h"
+#include "i915_perf.h"
+#include "i915_request.h"
+#include "i915_scheduler.h"
+#include "i915_selftest.h"
+#include "i915_vma.h"
+
+static int i915_check_nomodeset(void)
+{
+ bool use_kms = true;
+
+ /*
+ * Enable KMS by default, unless explicitly overriden by
+ * either the i915.modeset prarameter or by the
+ * vga_text_mode_force boot option.
+ */
+
+ if (i915_modparams.modeset == 0)
+ use_kms = false;
+
+ if (vgacon_text_force() && i915_modparams.modeset == -1)
+ use_kms = false;
+
+ if (!use_kms) {
+ /* Silently fail loading to not upset userspace. */
+ DRM_DEBUG_DRIVER("KMS disabled.\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+static const struct {
+ int (*init)(void);
+ void (*exit)(void);
+} init_funcs[] = {
+ { i915_check_nomodeset, NULL },
+ { i915_active_module_init, i915_active_module_exit },
+ { i915_buddy_module_init, i915_buddy_module_exit },
+ { i915_context_module_init, i915_context_module_exit },
+ { i915_gem_context_module_init, i915_gem_context_module_exit },
+ { i915_objects_module_init, i915_objects_module_exit },
+ { i915_request_module_init, i915_request_module_exit },
+ { i915_scheduler_module_init, i915_scheduler_module_exit },
+ { i915_vma_module_init, i915_vma_module_exit },
+ { i915_mock_selftests, NULL },
+ { i915_pmu_init, i915_pmu_exit },
+ { i915_register_pci_driver, i915_unregister_pci_driver },
+ { i915_perf_sysctl_register, i915_perf_sysctl_unregister },
+};
+static int init_progress;
+
+static int __init i915_init(void)
+{
+ int err, i;
+
+ for (i = 0; i < ARRAY_SIZE(init_funcs); i++) {
+ err = init_funcs[i].init();
+ if (err < 0) {
+ while (i--) {
+ if (init_funcs[i].exit)
+ init_funcs[i].exit();
+ }
+ return err;
+ } else if (err > 0) {
+ /*
+ * Early-exit success is reserved for things which
+ * don't have an exit() function because we have no
+ * idea how far they got or how to partially tear
+ * them down.
+ */
+ WARN_ON(init_funcs[i].exit);
+ break;
+ }
+ }
+
+ init_progress = i;
+
+ return 0;
+}
+
+static void __exit i915_exit(void)
+{
+ int i;
+
+ for (i = init_progress - 1; i >= 0; i--) {
+ GEM_BUG_ON(i >= ARRAY_SIZE(init_funcs));
+ if (init_funcs[i].exit)
+ init_funcs[i].exit();
+ }
+}
+
+module_init(i915_init);
+module_exit(i915_exit);
+
+MODULE_AUTHOR("Tungsten Graphics, Inc.");
+MODULE_AUTHOR("Intel Corporation");
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index b4f5e88aaae6..08651ca03478 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -22,24 +22,13 @@
*
*/
-#include <linux/console.h>
#include <linux/vga_switcheroo.h>
#include <drm/drm_drv.h>
#include <drm/i915_pciids.h>
-#include "display/intel_fbdev.h"
-
-#include "i915_active.h"
-#include "i915_buddy.h"
#include "i915_drv.h"
-#include "gem/i915_gem_context.h"
-#include "gem/i915_gem_object.h"
-#include "i915_request.h"
-#include "i915_perf.h"
-#include "i915_selftest.h"
-#include "i915_scheduler.h"
-#include "i915_vma.h"
+#include "i915_pci.h"
#define PLATFORM(x) .platform = (x)
#define GEN(x) \
@@ -1251,31 +1240,6 @@ static void i915_pci_shutdown(struct pci_dev *pdev)
i915_driver_shutdown(i915);
}
-static int i915_check_nomodeset(void)
-{
- bool use_kms = true;
-
- /*
- * Enable KMS by default, unless explicitly overriden by
- * either the i915.modeset prarameter or by the
- * vga_text_mode_force boot option.
- */
-
- if (i915_modparams.modeset == 0)
- use_kms = false;
-
- if (vgacon_text_force() && i915_modparams.modeset == -1)
- use_kms = false;
-
- if (!use_kms) {
- /* Silently fail loading to not upset userspace. */
- DRM_DEBUG_DRIVER("KMS disabled.\n");
- return 1;
- }
-
- return 0;
-}
-
static struct pci_driver i915_pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
@@ -1285,87 +1249,12 @@ static struct pci_driver i915_pci_driver = {
.driver.pm = &i915_pm_ops,
};
-static int i915_register_pci_driver(void)
+int i915_register_pci_driver(void)
{
return pci_register_driver(&i915_pci_driver);
}
-static void i915_unregister_pci_driver(void)
+void i915_unregister_pci_driver(void)
{
pci_unregister_driver(&i915_pci_driver);
}
-
-static const struct {
- int (*init)(void);
- void (*exit)(void);
-} init_funcs[] = {
- { i915_check_nomodeset, NULL },
- { i915_active_module_init, i915_active_module_exit },
- { i915_buddy_module_init, i915_buddy_module_exit },
- { i915_context_module_init, i915_context_module_exit },
- { i915_gem_context_module_init, i915_gem_context_module_exit },
- { i915_objects_module_init, i915_objects_module_exit },
- { i915_request_module_init, i915_request_module_exit },
- { i915_scheduler_module_init, i915_scheduler_module_exit },
- { i915_vma_module_init, i915_vma_module_exit },
- { i915_mock_selftests, NULL },
- { i915_pmu_init, i915_pmu_exit },
- { i915_register_pci_driver, i915_unregister_pci_driver },
- { i915_perf_sysctl_register, i915_perf_sysctl_unregister },
-};
-static int init_progress;
-
-static int __init i915_init(void)
-{
- int err, i;
-
- for (i = 0; i < ARRAY_SIZE(init_funcs); i++) {
- err = init_funcs[i].init();
- if (err < 0) {
- while (i--) {
- if (init_funcs[i].exit)
- init_funcs[i].exit();
- }
- return err;
- } else if (err > 0) {
- /*
- * Early-exit success is reserved for things which
- * don't have an exit() function because we have no
- * idea how far they got or how to partially tear
- * them down.
- */
- WARN_ON(init_funcs[i].exit);
-
- /*
- * We don't want to advertise devices with an only
- * partially initialized driver.
- */
- WARN_ON(i915_pci_driver.driver.owner);
- break;
- }
- }
-
- init_progress = i;
-
- return 0;
-}
-
-static void __exit i915_exit(void)
-{
- int i;
-
- for (i = init_progress - 1; i >= 0; i--) {
- GEM_BUG_ON(i >= ARRAY_SIZE(init_funcs));
- if (init_funcs[i].exit)
- init_funcs[i].exit();
- }
-}
-
-module_init(i915_init);
-module_exit(i915_exit);
-
-MODULE_AUTHOR("Tungsten Graphics, Inc.");
-MODULE_AUTHOR("Intel Corporation");
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/gpu/drm/i915/i915_pci.h b/drivers/gpu/drm/i915/i915_pci.h
new file mode 100644
index 000000000000..b386f319f52e
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_pci.h
@@ -0,0 +1,8 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2021 Intel Corporation
+ */
+
+int i915_register_pci_driver(void);
+void i915_unregister_pci_driver(void);
--
2.32.0
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