diff options
Diffstat (limited to 'drivers/gpu/arm/midgard/platform/devicetree')
4 files changed, 233 insertions, 0 deletions
diff --git a/drivers/gpu/arm/midgard/platform/devicetree/Kbuild b/drivers/gpu/arm/midgard/platform/devicetree/Kbuild new file mode 100755 index 000000000000..b5a49f36e558 --- /dev/null +++ b/drivers/gpu/arm/midgard/platform/devicetree/Kbuild @@ -0,0 +1,22 @@ +# +# (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved. +# +# This program is free software and is provided to you under the terms of the +# GNU General Public License version 2 as published by the Free Software +# Foundation, and any use by you of this program is subject to the terms +# of such GNU licence. +# +# A copy of the licence is included with the program, and can also be obtained +# from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +# Boston, MA 02110-1301, USA. +# +# + + +ifeq ($(CONFIG_MALI_MIDGARD),y) +obj-y += mali_kbase_runtime_pm.c +obj-y += mali_kbase_config_devicetree.c +else ifeq ($(CONFIG_MALI_MIDGARD),m) +SRC += platform/devicetree/mali_kbase_runtime_pm.c +SRC += platform/devicetree/mali_kbase_config_devicetree.c +endif diff --git a/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_config_devicetree.c b/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_config_devicetree.c new file mode 100755 index 000000000000..b2a7c93f12a9 --- /dev/null +++ b/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_config_devicetree.c @@ -0,0 +1,31 @@ +/* + * + * (C) COPYRIGHT 2015 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + +#include <mali_kbase_config.h> + +int kbase_platform_early_init(void) +{ + /* Nothing needed at this stage */ + return 0; +} + +static struct kbase_platform_config dummy_platform_config; + +struct kbase_platform_config *kbase_get_platform_config(void) +{ + return &dummy_platform_config; +} diff --git a/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_config_platform.h b/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_config_platform.h new file mode 100755 index 000000000000..d4813f7f8a35 --- /dev/null +++ b/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_config_platform.h @@ -0,0 +1,80 @@ +/* + * + * (C) COPYRIGHT 2014-2015 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + +/** + * Maximum frequency GPU will be clocked at. Given in kHz. + * This must be specified as there is no default value. + * + * Attached value: number in kHz + * Default value: NA + */ +#define GPU_FREQ_KHZ_MAX (5000) +/** + * Minimum frequency GPU will be clocked at. Given in kHz. + * This must be specified as there is no default value. + * + * Attached value: number in kHz + * Default value: NA + */ +#define GPU_FREQ_KHZ_MIN (5000) + +/** + * CPU_SPEED_FUNC - A pointer to a function that calculates the CPU clock + * + * CPU clock speed of the platform is in MHz - see kbase_cpu_clk_speed_func + * for the function prototype. + * + * Attached value: A kbase_cpu_clk_speed_func. + * Default Value: NA + */ +#define CPU_SPEED_FUNC (NULL) + +/** + * GPU_SPEED_FUNC - A pointer to a function that calculates the GPU clock + * + * GPU clock speed of the platform in MHz - see kbase_gpu_clk_speed_func + * for the function prototype. + * + * Attached value: A kbase_gpu_clk_speed_func. + * Default Value: NA + */ +#define GPU_SPEED_FUNC (NULL) + +/** + * Power management configuration + * + * Attached value: pointer to @ref kbase_pm_callback_conf + * Default value: See @ref kbase_pm_callback_conf + */ +#define POWER_MANAGEMENT_CALLBACKS (&pm_callbacks) + +/** + * Platform specific configuration functions + * + * Attached value: pointer to @ref kbase_platform_funcs_conf + * Default value: See @ref kbase_platform_funcs_conf + */ +#define PLATFORM_FUNCS (NULL) + +extern struct kbase_pm_callback_conf pm_callbacks; + +/** + * Secure mode switch + * + * Attached value: pointer to @ref kbase_secure_ops + */ +#define SECURE_CALLBACKS (NULL) diff --git a/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_runtime_pm.c b/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_runtime_pm.c new file mode 100755 index 000000000000..aa4376afd3ba --- /dev/null +++ b/drivers/gpu/arm/midgard/platform/devicetree/mali_kbase_runtime_pm.c @@ -0,0 +1,100 @@ +/* + * + * (C) COPYRIGHT 2015 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + +#include <mali_kbase.h> +#include <mali_kbase_defs.h> +#include <linux/pm_runtime.h> +#include <linux/suspend.h> + +static int pm_callback_power_on(struct kbase_device *kbdev) +{ + int ret; + + dev_dbg(kbdev->dev, "pm_callback_power_on %p\n", + (void *)kbdev->dev->pm_domain); + + ret = pm_runtime_get_sync(kbdev->dev); + + dev_dbg(kbdev->dev, "pm_runtime_get returned %d\n", ret); + + return 1; +} + +static void pm_callback_power_off(struct kbase_device *kbdev) +{ + dev_dbg(kbdev->dev, "pm_callback_power_off\n"); + + pm_runtime_put_autosuspend(kbdev->dev); +} + +int kbase_device_runtime_init(struct kbase_device *kbdev) +{ + dev_dbg(kbdev->dev, "kbase_device_runtime_init\n"); + pm_runtime_enable(kbdev->dev); + + return 0; +} + +void kbase_device_runtime_disable(struct kbase_device *kbdev) +{ + dev_dbg(kbdev->dev, "kbase_device_runtime_disable\n"); + pm_runtime_disable(kbdev->dev); +} + +static int pm_callback_runtime_on(struct kbase_device *kbdev) +{ + dev_dbg(kbdev->dev, "pm_callback_runtime_on\n"); + + return 0; +} + +static void pm_callback_runtime_off(struct kbase_device *kbdev) +{ + dev_dbg(kbdev->dev, "pm_callback_runtime_off\n"); +} + +static void pm_callback_resume(struct kbase_device *kbdev) +{ + int ret = pm_callback_runtime_on(kbdev); + + WARN_ON(ret); +} + +static void pm_callback_suspend(struct kbase_device *kbdev) +{ + pm_callback_runtime_off(kbdev); +} + +struct kbase_pm_callback_conf pm_callbacks = { + .power_on_callback = pm_callback_power_on, + .power_off_callback = pm_callback_power_off, + .power_suspend_callback = pm_callback_suspend, + .power_resume_callback = pm_callback_resume, +#ifdef KBASE_PM_RUNTIME + .power_runtime_init_callback = kbase_device_runtime_init, + .power_runtime_term_callback = kbase_device_runtime_disable, + .power_runtime_on_callback = pm_callback_runtime_on, + .power_runtime_off_callback = pm_callback_runtime_off, +#else /* KBASE_PM_RUNTIME */ + .power_runtime_init_callback = NULL, + .power_runtime_term_callback = NULL, + .power_runtime_on_callback = NULL, + .power_runtime_off_callback = NULL, +#endif /* KBASE_PM_RUNTIME */ +}; + + |