path: root/drivers/gpu/arm/midgard/platform/vexpress/mali_kbase_config_vexpress.c

/*
 *
 * (C) COPYRIGHT 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 <linux/ioport.h>
#include <mali_kbase.h>
#include <mali_kbase_defs.h>
#include <mali_kbase_config.h>
#include "mali_kbase_cpu_vexpress.h"

/* Versatile Express (VE) configuration defaults shared between config_attributes[]
 * and config_attributes_hw_issue_8408[]. Settings are not shared for
 * JS_HARD_STOP_TICKS_SS and JS_RESET_TICKS_SS.
 */
#define KBASE_VE_GPU_FREQ_KHZ_MAX               5000
#define KBASE_VE_GPU_FREQ_KHZ_MIN               5000

#define KBASE_VE_JS_SCHEDULING_TICK_NS_DEBUG    15000000u      /* 15ms, an agressive tick for testing purposes. This will reduce performance significantly */
#define KBASE_VE_JS_SOFT_STOP_TICKS_DEBUG       1	/* between 15ms and 30ms before soft-stop a job */
#define KBASE_VE_JS_SOFT_STOP_TICKS_CL_DEBUG    1	/* between 15ms and 30ms before soft-stop a CL job */
#define KBASE_VE_JS_HARD_STOP_TICKS_SS_DEBUG    333	/* 5s before hard-stop */
#define KBASE_VE_JS_HARD_STOP_TICKS_SS_8401_DEBUG 2000	/* 30s before hard-stop, for a certain GLES2 test at 128x128 (bound by combined vertex+tiler job) - for issue 8401 */
#define KBASE_VE_JS_HARD_STOP_TICKS_CL_DEBUG    166	/* 2.5s before hard-stop */
#define KBASE_VE_JS_HARD_STOP_TICKS_NSS_DEBUG   100000	/* 1500s (25mins) before NSS hard-stop */
#define KBASE_VE_JS_RESET_TICKS_SS_DEBUG        500	/* 45s before resetting GPU, for a certain GLES2 test at 128x128 (bound by combined vertex+tiler job) */
#define KBASE_VE_JS_RESET_TICKS_SS_8401_DEBUG   3000	/* 7.5s before resetting GPU - for issue 8401 */
#define KBASE_VE_JS_RESET_TICKS_CL_DEBUG        500	/* 45s before resetting GPU */
#define KBASE_VE_JS_RESET_TICKS_NSS_DEBUG       100166	/* 1502s before resetting GPU */

#define KBASE_VE_JS_SCHEDULING_TICK_NS          1250000000u	/* 1.25s */
#define KBASE_VE_JS_SOFT_STOP_TICKS             2	/* 2.5s before soft-stop a job */
#define KBASE_VE_JS_SOFT_STOP_TICKS_CL          1	/* 1.25s before soft-stop a CL job */
#define KBASE_VE_JS_HARD_STOP_TICKS_SS          4	/* 5s before hard-stop */
#define KBASE_VE_JS_HARD_STOP_TICKS_SS_8401     24	/* 30s before hard-stop, for a certain GLES2 test at 128x128 (bound by combined vertex+tiler job) - for issue 8401 */
#define KBASE_VE_JS_HARD_STOP_TICKS_CL          2	/* 2.5s before hard-stop */
#define KBASE_VE_JS_HARD_STOP_TICKS_NSS         1200	/* 1500s before NSS hard-stop */
#define KBASE_VE_JS_RESET_TICKS_SS              6	/* 7.5s before resetting GPU */
#define KBASE_VE_JS_RESET_TICKS_SS_8401         36	/* 45s before resetting GPU, for a certain GLES2 test at 128x128 (bound by combined vertex+tiler job) - for issue 8401 */
#define KBASE_VE_JS_RESET_TICKS_CL              3	/* 7.5s before resetting GPU */
#define KBASE_VE_JS_RESET_TICKS_NSS             1201	/* 1502s before resetting GPU */

#define KBASE_VE_JS_RESET_TIMEOUT_MS            3000	/* 3s before cancelling stuck jobs */
#define KBASE_VE_JS_CTX_TIMESLICE_NS            1000000	/* 1ms - an agressive timeslice for testing purposes (causes lots of scheduling out for >4 ctxs) */
#define KBASE_VE_SECURE_BUT_LOSS_OF_PERFORMANCE	((uintptr_t)MALI_FALSE)	/* By default we prefer performance over security on r0p0-15dev0 and KBASE_CONFIG_ATTR_ earlier */
#define KBASE_VE_POWER_MANAGEMENT_CALLBACKS     ((uintptr_t)&pm_callbacks)
#define KBASE_VE_CPU_SPEED_FUNC                 ((uintptr_t)&kbase_get_vexpress_cpu_clock_speed)

#define HARD_RESET_AT_POWER_OFF 0

#ifndef CONFIG_OF
static kbase_io_resources io_resources = {
	.job_irq_number = 68,
	.mmu_irq_number = 69,
	.gpu_irq_number = 70,
	.io_memory_region = {
			     .start = 0xFC010000,
			     .end = 0xFC010000 + (4096 * 4) - 1}
};
#endif

static int pm_callback_power_on(kbase_device *kbdev)
{
	/* Nothing is needed on VExpress, but we may have destroyed GPU state (if the below HARD_RESET code is active) */
	return 1;
}

static void pm_callback_power_off(kbase_device *kbdev)
{
#if HARD_RESET_AT_POWER_OFF
	/* Cause a GPU hard reset to test whether we have actually idled the GPU
	 * and that we properly reconfigure the GPU on power up.
	 * Usually this would be dangerous, but if the GPU is working correctly it should
	 * be completely safe as the GPU should not be active at this point.
	 * However this is disabled normally because it will most likely interfere with
	 * bus logging etc.
	 */
	KBASE_TRACE_ADD(kbdev, CORE_GPU_HARD_RESET, NULL, NULL, 0u, 0);
	kbase_os_reg_write(kbdev, GPU_CONTROL_REG(GPU_COMMAND), GPU_COMMAND_HARD_RESET);
#endif
}

static kbase_pm_callback_conf pm_callbacks = {
	.power_on_callback = pm_callback_power_on,
	.power_off_callback = pm_callback_power_off,
	.power_suspend_callback  = NULL,
	.power_resume_callback = NULL
};

/* Please keep table config_attributes in sync with config_attributes_hw_issue_8408 */
static kbase_attribute config_attributes[] = {
	{
	 KBASE_CONFIG_ATTR_GPU_FREQ_KHZ_MAX,
	 KBASE_VE_GPU_FREQ_KHZ_MAX},

	{
	 KBASE_CONFIG_ATTR_GPU_FREQ_KHZ_MIN,
	 KBASE_VE_GPU_FREQ_KHZ_MIN},

#ifdef CONFIG_MALI_DEBUG
/* Use more aggressive scheduling timeouts in debug builds for testing purposes */
	{
	 KBASE_CONFIG_ATTR_JS_SCHEDULING_TICK_NS,
	 KBASE_VE_JS_SCHEDULING_TICK_NS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS,
	 KBASE_VE_JS_SOFT_STOP_TICKS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS_CL,
	 KBASE_VE_JS_SOFT_STOP_TICKS_CL_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_SS,
	 KBASE_VE_JS_HARD_STOP_TICKS_SS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_CL,
	 KBASE_VE_JS_HARD_STOP_TICKS_CL_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_NSS,
	 KBASE_VE_JS_HARD_STOP_TICKS_NSS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_SS,
	 KBASE_VE_JS_RESET_TICKS_SS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_CL,
	 KBASE_VE_JS_RESET_TICKS_CL_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_NSS,
	 KBASE_VE_JS_RESET_TICKS_NSS_DEBUG},
#else				/* CONFIG_MALI_DEBUG */
/* In release builds same as the defaults but scaled for 5MHz FPGA */
	{
	 KBASE_CONFIG_ATTR_JS_SCHEDULING_TICK_NS,
	 KBASE_VE_JS_SCHEDULING_TICK_NS},

	{
	 KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS,
	 KBASE_VE_JS_SOFT_STOP_TICKS},

	{
	 KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS_CL,
	 KBASE_VE_JS_SOFT_STOP_TICKS_CL},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_SS,
	 KBASE_VE_JS_HARD_STOP_TICKS_SS},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_CL,
	 KBASE_VE_JS_HARD_STOP_TICKS_CL},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_NSS,
	 KBASE_VE_JS_HARD_STOP_TICKS_NSS},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_SS,
	 KBASE_VE_JS_RESET_TICKS_SS},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_CL,
	 KBASE_VE_JS_RESET_TICKS_CL},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_NSS,
	 KBASE_VE_JS_RESET_TICKS_NSS},
#endif				/* CONFIG_MALI_DEBUG */
	{
	 KBASE_CONFIG_ATTR_JS_RESET_TIMEOUT_MS,
	 KBASE_VE_JS_RESET_TIMEOUT_MS},

	{
	 KBASE_CONFIG_ATTR_JS_CTX_TIMESLICE_NS,
	 KBASE_VE_JS_CTX_TIMESLICE_NS},

	{
	 KBASE_CONFIG_ATTR_POWER_MANAGEMENT_CALLBACKS,
	 KBASE_VE_POWER_MANAGEMENT_CALLBACKS},

	{
	 KBASE_CONFIG_ATTR_CPU_SPEED_FUNC,
	 KBASE_VE_CPU_SPEED_FUNC},

	{
	 KBASE_CONFIG_ATTR_SECURE_BUT_LOSS_OF_PERFORMANCE,
	 KBASE_VE_SECURE_BUT_LOSS_OF_PERFORMANCE},

	{
	 KBASE_CONFIG_ATTR_GPU_IRQ_THROTTLE_TIME_US,
	 20},

	{
	 KBASE_CONFIG_ATTR_END,
	 0}
};

/* as config_attributes array above except with different settings for
 * JS_HARD_STOP_TICKS_SS, JS_RESET_TICKS_SS that
 * are needed for BASE_HW_ISSUE_8408.
 */
kbase_attribute config_attributes_hw_issue_8408[] = {
	{
	 KBASE_CONFIG_ATTR_GPU_FREQ_KHZ_MAX,
	 KBASE_VE_GPU_FREQ_KHZ_MAX},

	{
	 KBASE_CONFIG_ATTR_GPU_FREQ_KHZ_MIN,
	 KBASE_VE_GPU_FREQ_KHZ_MIN},

#ifdef CONFIG_MALI_DEBUG
/* Use more aggressive scheduling timeouts in debug builds for testing purposes */
	{
	 KBASE_CONFIG_ATTR_JS_SCHEDULING_TICK_NS,
	 KBASE_VE_JS_SCHEDULING_TICK_NS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS,
	 KBASE_VE_JS_SOFT_STOP_TICKS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_SS,
	 KBASE_VE_JS_HARD_STOP_TICKS_SS_8401_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_NSS,
	 KBASE_VE_JS_HARD_STOP_TICKS_NSS_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_SS,
	 KBASE_VE_JS_RESET_TICKS_SS_8401_DEBUG},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_NSS,
	 KBASE_VE_JS_RESET_TICKS_NSS_DEBUG},
#else				/* CONFIG_MALI_DEBUG */
/* In release builds same as the defaults but scaled for 5MHz FPGA */
	{
	 KBASE_CONFIG_ATTR_JS_SCHEDULING_TICK_NS,
	 KBASE_VE_JS_SCHEDULING_TICK_NS},

	{
	 KBASE_CONFIG_ATTR_JS_SOFT_STOP_TICKS,
	 KBASE_VE_JS_SOFT_STOP_TICKS},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_SS,
	 KBASE_VE_JS_HARD_STOP_TICKS_SS_8401},

	{
	 KBASE_CONFIG_ATTR_JS_HARD_STOP_TICKS_NSS,
	 KBASE_VE_JS_HARD_STOP_TICKS_NSS},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_SS,
	 KBASE_VE_JS_RESET_TICKS_SS_8401},

	{
	 KBASE_CONFIG_ATTR_JS_RESET_TICKS_NSS,
	 KBASE_VE_JS_RESET_TICKS_NSS},
#endif				/* CONFIG_MALI_DEBUG */
	{
	 KBASE_CONFIG_ATTR_JS_RESET_TIMEOUT_MS,
	 KBASE_VE_JS_RESET_TIMEOUT_MS},

	{
	 KBASE_CONFIG_ATTR_JS_CTX_TIMESLICE_NS,
	 KBASE_VE_JS_CTX_TIMESLICE_NS},

	{
	 KBASE_CONFIG_ATTR_POWER_MANAGEMENT_CALLBACKS,
	 KBASE_VE_POWER_MANAGEMENT_CALLBACKS},

	{
	 KBASE_CONFIG_ATTR_CPU_SPEED_FUNC,
	 KBASE_VE_CPU_SPEED_FUNC},

	{
	 KBASE_CONFIG_ATTR_SECURE_BUT_LOSS_OF_PERFORMANCE,
	 KBASE_VE_SECURE_BUT_LOSS_OF_PERFORMANCE},

	{
	 KBASE_CONFIG_ATTR_END,
	 0}
};

static kbase_platform_config versatile_platform_config = {
	.attributes = config_attributes,
#ifndef CONFIG_OF
	.io_resources = &io_resources
#endif
};

kbase_platform_config *kbase_get_platform_config(void)
{
	return &versatile_platform_config;
}

int kbase_platform_early_init(void)
{
	/* Nothing needed at this stage */
	return 0;
}