| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20180710182503.862537447@linuxfoundation.org>
Date: Tue, 10 Jul 2018 20:24:49 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Lyude Paul <lyude@...hat.com>,
Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.17 07/56] drm/amdgpu: Make struct amdgpu_atif private to amdgpu_acpi.c
4.17-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lyude Paul <lyude@...hat.com>
commit 2cd5fe22d9a45cdf11c62bbe8db3ce9101207510 upstream.
Currently, there is nothing in amdgpu that actually uses these structs
other than amdgpu_acpi.c. Additionally, since we're about to start
saving the correct ACPI handle to use for calling ATIF in this struct
this saves us from having to handle making sure that the acpi_handle
(and by proxy, the type definition for acpi_handle and all of the other
acpi headers) doesn't need to be included within the amdgpu_drv struct
itself. This follows the example set by amdgpu_atpx_handler.c.
Signed-off-by: Lyude Paul <lyude@...hat.com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 40 +---------------------
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 54 +++++++++++++++++++++++++++++--
2 files changed, 53 insertions(+), 41 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -188,6 +188,7 @@ struct amdgpu_job;
struct amdgpu_irq_src;
struct amdgpu_fpriv;
struct amdgpu_bo_va_mapping;
+struct amdgpu_atif;
enum amdgpu_cp_irq {
AMDGPU_CP_IRQ_GFX_EOP = 0,
@@ -1246,43 +1247,6 @@ struct amdgpu_vram_scratch {
/*
* ACPI
*/
-struct amdgpu_atif_notification_cfg {
- bool enabled;
- int command_code;
-};
-
-struct amdgpu_atif_notifications {
- bool display_switch;
- bool expansion_mode_change;
- bool thermal_state;
- bool forced_power_state;
- bool system_power_state;
- bool display_conf_change;
- bool px_gfx_switch;
- bool brightness_change;
- bool dgpu_display_event;
-};
-
-struct amdgpu_atif_functions {
- bool system_params;
- bool sbios_requests;
- bool select_active_disp;
- bool lid_state;
- bool get_tv_standard;
- bool set_tv_standard;
- bool get_panel_expansion_mode;
- bool set_panel_expansion_mode;
- bool temperature_change;
- bool graphics_device_types;
-};
-
-struct amdgpu_atif {
- struct amdgpu_atif_notifications notifications;
- struct amdgpu_atif_functions functions;
- struct amdgpu_atif_notification_cfg notification_cfg;
- struct amdgpu_encoder *encoder_for_bl;
-};
-
struct amdgpu_atcs_functions {
bool get_ext_state;
bool pcie_perf_req;
@@ -1430,7 +1394,7 @@ struct amdgpu_device {
#if defined(CONFIG_DEBUG_FS)
struct dentry *debugfs_regs[AMDGPU_DEBUGFS_MAX_COMPONENTS];
#endif
- struct amdgpu_atif atif;
+ struct amdgpu_atif *atif;
struct amdgpu_atcs atcs;
struct mutex srbm_mutex;
/* GRBM index mutex. Protects concurrent access to GRBM index */
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -34,6 +34,43 @@
#include "amd_acpi.h"
#include "atom.h"
+struct amdgpu_atif_notification_cfg {
+ bool enabled;
+ int command_code;
+};
+
+struct amdgpu_atif_notifications {
+ bool display_switch;
+ bool expansion_mode_change;
+ bool thermal_state;
+ bool forced_power_state;
+ bool system_power_state;
+ bool display_conf_change;
+ bool px_gfx_switch;
+ bool brightness_change;
+ bool dgpu_display_event;
+};
+
+struct amdgpu_atif_functions {
+ bool system_params;
+ bool sbios_requests;
+ bool select_active_disp;
+ bool lid_state;
+ bool get_tv_standard;
+ bool set_tv_standard;
+ bool get_panel_expansion_mode;
+ bool set_panel_expansion_mode;
+ bool temperature_change;
+ bool graphics_device_types;
+};
+
+struct amdgpu_atif {
+ struct amdgpu_atif_notifications notifications;
+ struct amdgpu_atif_functions functions;
+ struct amdgpu_atif_notification_cfg notification_cfg;
+ struct amdgpu_encoder *encoder_for_bl;
+};
+
/* Call the ATIF method
*/
/**
@@ -292,7 +329,7 @@ out:
static int amdgpu_atif_handler(struct amdgpu_device *adev,
struct acpi_bus_event *event)
{
- struct amdgpu_atif *atif = &adev->atif;
+ struct amdgpu_atif *atif = adev->atif;
struct atif_sbios_requests req;
acpi_handle handle;
int count;
@@ -303,7 +340,8 @@ static int amdgpu_atif_handler(struct am
if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0)
return NOTIFY_DONE;
- if (!atif->notification_cfg.enabled ||
+ if (!atif ||
+ !atif->notification_cfg.enabled ||
event->type != atif->notification_cfg.command_code)
/* Not our event */
return NOTIFY_DONE;
@@ -642,7 +680,7 @@ static int amdgpu_acpi_event(struct noti
int amdgpu_acpi_init(struct amdgpu_device *adev)
{
acpi_handle handle;
- struct amdgpu_atif *atif = &adev->atif;
+ struct amdgpu_atif *atif;
struct amdgpu_atcs *atcs = &adev->atcs;
int ret;
@@ -659,11 +697,19 @@ int amdgpu_acpi_init(struct amdgpu_devic
}
/* Call the ATIF method */
+ atif = kzalloc(sizeof(*atif), GFP_KERNEL);
+ if (!atif) {
+ DRM_WARN("Not enough memory to initialize ATIF\n");
+ goto out;
+ }
+
ret = amdgpu_atif_verify_interface(handle, atif);
if (ret) {
DRM_DEBUG_DRIVER("Call to ATIF verify_interface failed: %d\n", ret);
+ kfree(atif);
goto out;
}
+ adev->atif = atif;
if (atif->notifications.brightness_change) {
struct drm_encoder *tmp;
@@ -720,4 +766,6 @@ out:
void amdgpu_acpi_fini(struct amdgpu_device *adev)
{
unregister_acpi_notifier(&adev->acpi_nb);
+ if (adev->atif)
+ kfree(adev->atif);
}
Powered by blists - more mailing lists