diff options
Diffstat (limited to 'drivers/media/video/samsung/mali/platform/orion-m400/mali_platform.c')
| -rw-r--r-- | drivers/media/video/samsung/mali/platform/orion-m400/mali_platform.c | 656 |
1 files changed, 656 insertions, 0 deletions
diff --git a/drivers/media/video/samsung/mali/platform/orion-m400/mali_platform.c b/drivers/media/video/samsung/mali/platform/orion-m400/mali_platform.c new file mode 100644 index 0000000..119831d --- /dev/null +++ b/drivers/media/video/samsung/mali/platform/orion-m400/mali_platform.c @@ -0,0 +1,656 @@ +/* + * Copyright (C) 2010-2012 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. + */ + +/** + * @file mali_platform.c + * Platform specific Mali driver functions for a default platform + */ +#include <linux/version.h> +#include "mali_kernel_common.h" +#include "mali_osk.h" +#include "mali_platform.h" +#include "mali_linux_pm.h" + +#if USING_MALI_PMM +#include "mali_pm.h" +#endif + +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> +#include <linux/regulator/driver.h> + +#if MALI_PMM_RUNTIME_JOB_CONTROL_ON +#include <plat/pd.h> +#endif + +#if MALI_TIMELINE_PROFILING_ENABLED +#include "mali_kernel_profiling.h" +#endif + +#include <asm/io.h> +#include <mach/regs-pmu.h> + +#define EXTXTALCLK_NAME "ext_xtal" +#define VPLLSRCCLK_NAME "vpll_src" +#define FOUTVPLLCLK_NAME "fout_vpll" +#define SCLVPLLCLK_NAME "sclk_vpll" +#define GPUMOUT1CLK_NAME "mout_g3d1" + +#define MPLLCLK_NAME "mout_mpll" +#define GPUMOUT0CLK_NAME "mout_g3d0" +#define GPUCLK_NAME "sclk_g3d" +#define CLK_DIV_STAT_G3D 0x1003C62C +#define CLK_DESC "clk-divider-status" + +static struct clk *ext_xtal_clock = 0; +static struct clk *vpll_src_clock = 0; +static struct clk *fout_vpll_clock = 0; +static struct clk *sclk_vpll_clock = 0; + +static struct clk *mpll_clock = 0; +static struct clk *mali_parent_clock = 0; +static struct clk *mali_clock = 0; + +int mali_gpu_clk = 160; +static unsigned int GPU_MHZ = 1000000; +#ifdef CONFIG_S5PV310_ASV +int mali_gpu_vol = 1100000; /* 1.10V for ASV */ +#else +int mali_gpu_vol = 1100000; /* 1.10V */ +#endif + +#if MALI_DVFS_ENABLED +#define MALI_DVFS_DEFAULT_STEP 0 // 134Mhz default +#endif + +int gpu_power_state; +static int bPoweroff; + +#ifdef CONFIG_REGULATOR +struct regulator { + struct device *dev; + struct list_head list; + int uA_load; + int min_uV; + int max_uV; + char *supply_name; + struct device_attribute dev_attr; + struct regulator_dev *rdev; +}; + +struct regulator *g3d_regulator=NULL; +#endif + +#if MALI_PMM_RUNTIME_JOB_CONTROL_ON +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,36) +extern struct platform_device s5pv310_device_pd[]; +#else +extern struct platform_device exynos4_device_pd[]; +#endif +#endif + +mali_io_address clk_register_map=0; + +#if MALI_GPU_BOTTOM_LOCK +_mali_osk_lock_t *mali_dvfs_lock; +#else +static _mali_osk_lock_t *mali_dvfs_lock; +#endif + +#ifdef CONFIG_REGULATOR +int mali_regulator_get_usecount(void) +{ + struct regulator_dev *rdev; + + if( IS_ERR_OR_NULL(g3d_regulator) ) + { + MALI_DEBUG_PRINT(1, ("error on mali_regulator_get_usecount : g3d_regulator is null\n")); + return 0; + } + rdev = g3d_regulator->rdev; + return rdev->use_count; +} + +void mali_regulator_disable(void) +{ + bPoweroff = 1; + if( IS_ERR_OR_NULL(g3d_regulator) ) + { + MALI_DEBUG_PRINT(1, ("error on mali_regulator_disable : g3d_regulator is null\n")); + return; + } + regulator_disable(g3d_regulator); + MALI_DEBUG_PRINT(1, ("regulator_disable -> use cnt: %d \n",mali_regulator_get_usecount())); +} + +void mali_regulator_enable(void) +{ + bPoweroff = 0; + if( IS_ERR_OR_NULL(g3d_regulator) ) + { + MALI_DEBUG_PRINT(1, ("error on mali_regulator_enable : g3d_regulator is null\n")); + return; + } + regulator_enable(g3d_regulator); + MALI_DEBUG_PRINT(1, ("regulator_enable -> use cnt: %d \n",mali_regulator_get_usecount())); +} + +void mali_regulator_set_voltage(int min_uV, int max_uV) +{ + int voltage; + + _mali_osk_lock_wait(mali_dvfs_lock, _MALI_OSK_LOCKMODE_RW); + + if( IS_ERR_OR_NULL(g3d_regulator) ) + { + MALI_DEBUG_PRINT(1, ("error on mali_regulator_set_voltage : g3d_regulator is null\n")); + return; + } + MALI_DEBUG_PRINT(2, ("= regulator_set_voltage: %d, %d \n",min_uV, max_uV)); + +#if MALI_TIMELINE_PROFILING_ENABLED + _mali_profiling_add_event( MALI_PROFILING_EVENT_TYPE_SINGLE | + MALI_PROFILING_EVENT_CHANNEL_SOFTWARE | + MALI_PROFILING_EVENT_REASON_SINGLE_SW_GPU_VOLTS, + min_uV, max_uV, 0, 0, 0); +#endif + + regulator_set_voltage(g3d_regulator,min_uV,max_uV); + voltage = regulator_get_voltage(g3d_regulator); + +#if MALI_TIMELINE_PROFILING_ENABLED + _mali_profiling_add_event( MALI_PROFILING_EVENT_TYPE_SINGLE | + MALI_PROFILING_EVENT_CHANNEL_SOFTWARE | + MALI_PROFILING_EVENT_REASON_SINGLE_SW_GPU_VOLTS, + voltage, 0, 1, 0, 0); +#endif + mali_gpu_vol = voltage; + MALI_DEBUG_PRINT(1, ("= regulator_get_voltage: %d \n",mali_gpu_vol)); + + _mali_osk_lock_signal(mali_dvfs_lock, _MALI_OSK_LOCKMODE_RW); +} +#endif + +unsigned long mali_clk_get_rate(void) +{ + return clk_get_rate(mali_clock); +} + +mali_bool mali_clk_get(mali_bool bis_vpll) +{ + if (bis_vpll == MALI_TRUE) + { + if (ext_xtal_clock == NULL) + { + ext_xtal_clock = clk_get(NULL,EXTXTALCLK_NAME); + if (IS_ERR(ext_xtal_clock)) { + MALI_PRINT( ("MALI Error : failed to get source ext_xtal_clock\n")); + return MALI_FALSE; + } + } + + if (vpll_src_clock == NULL) + { + vpll_src_clock = clk_get(NULL,VPLLSRCCLK_NAME); + if (IS_ERR(vpll_src_clock)) { + MALI_PRINT( ("MALI Error : failed to get source vpll_src_clock\n")); + return MALI_FALSE; + } + } + + if (fout_vpll_clock == NULL) + { + fout_vpll_clock = clk_get(NULL,FOUTVPLLCLK_NAME); + if (IS_ERR(fout_vpll_clock)) { + MALI_PRINT( ("MALI Error : failed to get source fout_vpll_clock\n")); + return MALI_FALSE; + } + } + + if (sclk_vpll_clock == NULL) + { + sclk_vpll_clock = clk_get(NULL,SCLVPLLCLK_NAME); + if (IS_ERR(sclk_vpll_clock)) { + MALI_PRINT( ("MALI Error : failed to get source sclk_vpll_clock\n")); + return MALI_FALSE; + } + } + + if (mali_parent_clock == NULL) + { + mali_parent_clock = clk_get(NULL, GPUMOUT1CLK_NAME); + + if (IS_ERR(mali_parent_clock)) { + MALI_PRINT( ( "MALI Error : failed to get source mali parent clock\n")); + return MALI_FALSE; + } + } + } + else // mpll + { + if (mpll_clock == NULL) + { + mpll_clock = clk_get(NULL,MPLLCLK_NAME); + + if (IS_ERR(mpll_clock)) { + MALI_PRINT( ("MALI Error : failed to get source mpll clock\n")); + return MALI_FALSE; + } + } + + if (mali_parent_clock == NULL) + { + mali_parent_clock = clk_get(NULL, GPUMOUT0CLK_NAME); + + if (IS_ERR(mali_parent_clock)) { + MALI_PRINT( ( "MALI Error : failed to get source mali parent clock\n")); + return MALI_FALSE; + } + } + } + + // mali clock get always. + if (mali_clock == NULL) + { + mali_clock = clk_get(NULL, GPUCLK_NAME); + + if (IS_ERR(mali_clock)) { + MALI_PRINT( ("MALI Error : failed to get source mali clock\n")); + return MALI_FALSE; + } + } + + return MALI_TRUE; +} + +void mali_clk_put(mali_bool binc_mali_clock) +{ + if (mali_parent_clock) + { + clk_put(mali_parent_clock); + mali_parent_clock = 0; + } + + if (mpll_clock) + { + clk_put(mpll_clock); + mpll_clock = 0; + } + + if (sclk_vpll_clock) + { + clk_put(sclk_vpll_clock); + sclk_vpll_clock = 0; + } + + if (fout_vpll_clock) + { + clk_put(fout_vpll_clock); + fout_vpll_clock = 0; + } + + if (vpll_src_clock) + { + clk_put(vpll_src_clock); + vpll_src_clock = 0; + } + + if (ext_xtal_clock) + { + clk_put(ext_xtal_clock); + ext_xtal_clock = 0; + } + + if (binc_mali_clock == MALI_TRUE && mali_clock) + { + clk_put(mali_clock); + mali_clock = 0; + } + +} + + +mali_bool mali_clk_set_rate(unsigned int clk, unsigned int mhz) +{ + unsigned long rate = 0; + mali_bool bis_vpll = MALI_FALSE; + +#ifdef CONFIG_VPLL_USE_FOR_TVENC + bis_vpll = MALI_TRUE; +#endif + + _mali_osk_lock_wait(mali_dvfs_lock, _MALI_OSK_LOCKMODE_RW); + + if (mali_clk_get(bis_vpll) == MALI_FALSE) + return MALI_FALSE; + + rate = (unsigned long)clk * (unsigned long)mhz; + MALI_DEBUG_PRINT(3,("= clk_set_rate : %d , %d \n",clk, mhz )); + + if (bis_vpll) + { + clk_set_rate(fout_vpll_clock, (unsigned int)clk * GPU_MHZ); + clk_set_parent(vpll_src_clock, ext_xtal_clock); + clk_set_parent(sclk_vpll_clock, fout_vpll_clock); + + clk_set_parent(mali_parent_clock, sclk_vpll_clock); + clk_set_parent(mali_clock, mali_parent_clock); + } + else + { + clk_set_parent(mali_parent_clock, mpll_clock); + clk_set_parent(mali_clock, mali_parent_clock); + } + + if (clk_enable(mali_clock) < 0) + return MALI_FALSE; + +#if MALI_TIMELINE_PROFILING_ENABLED + _mali_profiling_add_event( MALI_PROFILING_EVENT_TYPE_SINGLE | + MALI_PROFILING_EVENT_CHANNEL_SOFTWARE | + MALI_PROFILING_EVENT_REASON_SINGLE_SW_GPU_FREQ, + rate, 0, 0, 0, 0); +#endif + + clk_set_rate(mali_clock, rate); + rate = clk_get_rate(mali_clock); + +#if MALI_TIMELINE_PROFILING_ENABLED + _mali_profiling_add_event( MALI_PROFILING_EVENT_TYPE_SINGLE | + MALI_PROFILING_EVENT_CHANNEL_SOFTWARE | + MALI_PROFILING_EVENT_REASON_SINGLE_SW_GPU_FREQ, + rate, 0, 0, 0, 0); +#endif + + if (bis_vpll) + mali_gpu_clk = (int)(rate / mhz); + else + mali_gpu_clk = (int)((rate + 500000) / mhz); + + GPU_MHZ = mhz; + MALI_DEBUG_PRINT(3,("= clk_get_rate: %d \n",mali_gpu_clk)); + + mali_clk_put(MALI_FALSE); + + _mali_osk_lock_signal(mali_dvfs_lock, _MALI_OSK_LOCKMODE_RW); + + return MALI_TRUE; +} + +static mali_bool init_mali_clock(void) +{ + mali_bool ret = MALI_TRUE; + + gpu_power_state = 0; + + if (mali_clock != 0) + return ret; // already initialized + + mali_dvfs_lock = _mali_osk_lock_init(_MALI_OSK_LOCKFLAG_NONINTERRUPTABLE + | _MALI_OSK_LOCKFLAG_ONELOCK, 0, 0); + if (mali_dvfs_lock == NULL) + return _MALI_OSK_ERR_FAULT; + + if (mali_clk_set_rate(mali_gpu_clk, GPU_MHZ) == MALI_FALSE) + { + ret = MALI_FALSE; + goto err_clock_get; + } + + MALI_PRINT(("init_mali_clock mali_clock %p \n", mali_clock)); + + +#ifdef CONFIG_REGULATOR +#if USING_MALI_PMM + g3d_regulator = regulator_get(&mali_gpu_device.dev, "vdd_g3d"); +#else + g3d_regulator = regulator_get(NULL, "vdd_g3d"); +#endif + + if (IS_ERR(g3d_regulator)) + { + MALI_PRINT( ("MALI Error : failed to get vdd_g3d\n")); + ret = MALI_FALSE; + goto err_regulator; + } + + regulator_enable(g3d_regulator); + MALI_DEBUG_PRINT(1, ("= regulator_enable -> use cnt: %d \n",mali_regulator_get_usecount())); + mali_regulator_set_voltage(mali_gpu_vol, mali_gpu_vol); +#endif + + MALI_DEBUG_PRINT(2, ("MALI Clock is set at mali driver\n")); + MALI_DEBUG_PRINT(3,("::clk_put:: %s mali_parent_clock - normal\n", __FUNCTION__)); + MALI_DEBUG_PRINT(3,("::clk_put:: %s mpll_clock - normal\n", __FUNCTION__)); + + mali_clk_put(MALI_FALSE); + + return MALI_TRUE; + + +#ifdef CONFIG_REGULATOR +err_regulator: + regulator_put(g3d_regulator); +#endif + +err_clock_get: + mali_clk_put(MALI_TRUE); + + return ret; +} + +static mali_bool deinit_mali_clock(void) +{ + if (mali_clock == 0) + return MALI_TRUE; + +#ifdef CONFIG_REGULATOR + if (g3d_regulator) + { + regulator_put(g3d_regulator); + g3d_regulator=NULL; + } +#endif + + mali_clk_put(MALI_TRUE); + + return MALI_TRUE; +} + + +static _mali_osk_errcode_t enable_mali_clocks(void) +{ + int err; + err = clk_enable(mali_clock); + MALI_DEBUG_PRINT(3,("enable_mali_clocks mali_clock %p error %d \n", mali_clock, err)); + + // set clock rate + mali_clk_set_rate(mali_gpu_clk, GPU_MHZ); + + MALI_SUCCESS; +} + +static _mali_osk_errcode_t disable_mali_clocks(void) +{ + clk_disable(mali_clock); + MALI_DEBUG_PRINT(3,("disable_mali_clocks mali_clock %p \n", mali_clock)); + + MALI_SUCCESS; +} + +void set_mali_parent_power_domain(struct platform_device* dev) +{ +#if MALI_PMM_RUNTIME_JOB_CONTROL_ON +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,36) + dev->dev.parent = &s5pv310_device_pd[PD_G3D].dev; +#else + dev->dev.parent = &exynos4_device_pd[PD_G3D].dev; +#endif + +#endif +} + +_mali_osk_errcode_t g3d_power_domain_control(int bpower_on) +{ + if (bpower_on) + { +#if MALI_PMM_RUNTIME_JOB_CONTROL_ON + MALI_DEBUG_PRINT(3,("_mali_osk_pm_dev_activate \n")); + _mali_osk_pm_dev_activate(); +#else //MALI_PMM_RUNTIME_JOB_CONTROL_ON + void __iomem *status; + u32 timeout; + __raw_writel(S5P_INT_LOCAL_PWR_EN, S5P_PMU_G3D_CONF); + status = S5P_PMU_G3D_CONF + 0x4; + + timeout = 10; + while ((__raw_readl(status) & S5P_INT_LOCAL_PWR_EN) + != S5P_INT_LOCAL_PWR_EN) { + if (timeout == 0) { + MALI_PRINTF(("Power domain enable failed.\n")); + return -ETIMEDOUT; + } + timeout--; + _mali_osk_time_ubusydelay(100); + } +#endif //MALI_PMM_RUNTIME_JOB_CONTROL_ON + } + else + { +#if MALI_PMM_RUNTIME_JOB_CONTROL_ON + MALI_DEBUG_PRINT( 4,("_mali_osk_pm_dev_idle\n")); + _mali_osk_pm_dev_idle(); + +#else //MALI_PMM_RUNTIME_JOB_CONTROL_ON + void __iomem *status; + u32 timeout; + __raw_writel(0, S5P_PMU_G3D_CONF); + + status = S5P_PMU_G3D_CONF + 0x4; + /* Wait max 1ms */ + timeout = 10; + while (__raw_readl(status) & S5P_INT_LOCAL_PWR_EN) + { + if (timeout == 0) { + MALI_PRINTF(("Power domain disable failed.\n" )); + return -ETIMEDOUT; + } + timeout--; + _mali_osk_time_ubusydelay( 100); + } +#endif //MALI_PMM_RUNTIME_JOB_CONTROL_ON + } + + MALI_SUCCESS; +} + +_mali_osk_errcode_t mali_platform_init() +{ + MALI_CHECK(init_mali_clock(), _MALI_OSK_ERR_FAULT); +#if MALI_DVFS_ENABLED + if (!clk_register_map) clk_register_map = _mali_osk_mem_mapioregion( CLK_DIV_STAT_G3D, 0x20, CLK_DESC ); + if(!init_mali_dvfs_status(MALI_DVFS_DEFAULT_STEP)) + MALI_DEBUG_PRINT(1, ("mali_platform_init failed\n")); +#endif + + MALI_SUCCESS; +} + +_mali_osk_errcode_t mali_platform_deinit() +{ + deinit_mali_clock(); + +#if MALI_DVFS_ENABLED + deinit_mali_dvfs_status(); + if (clk_register_map ) + { + _mali_osk_mem_unmapioregion(CLK_DIV_STAT_G3D, 0x20, clk_register_map); + clk_register_map=0; + } +#endif + + MALI_SUCCESS; +} + +_mali_osk_errcode_t mali_platform_powerdown(u32 cores) +{ + MALI_DEBUG_PRINT(3,("power down is called in mali_platform_powerdown state %x core %x \n", gpu_power_state, cores)); + + if (gpu_power_state != 0) // power down after state is 0 + { + gpu_power_state = gpu_power_state & (~cores); + if (gpu_power_state == 0) + { + MALI_DEBUG_PRINT( 3,("disable clock\n")); + disable_mali_clocks(); + } + } + else + { + MALI_PRINT(("mali_platform_powerdown gpu_power_state == 0 and cores %x \n", cores)); + } + + bPoweroff=1; + + + + MALI_SUCCESS; +} + +_mali_osk_errcode_t mali_platform_powerup(u32 cores) +{ + MALI_DEBUG_PRINT(3,("power up is called in mali_platform_powerup state %x core %x \n", gpu_power_state, cores)); + + if (gpu_power_state == 0) // power up only before state is 0 + { + gpu_power_state = gpu_power_state | cores; + + if (gpu_power_state != 0) + { + MALI_DEBUG_PRINT(4,("enable clock \n")); + enable_mali_clocks(); + } + } + else + { + gpu_power_state = gpu_power_state | cores; + } + + bPoweroff=0; + + + MALI_SUCCESS; +} + +void mali_gpu_utilization_handler(u32 utilization) +{ + if (bPoweroff==0) + { +#if MALI_DVFS_ENABLED + if(!mali_dvfs_handler(utilization)) + MALI_DEBUG_PRINT(1,( "error on mali dvfs status in utilization\n")); +#endif + } +} + +#if MALI_POWER_MGMT_TEST_SUITE +u32 pmu_get_power_up_down_info(void) +{ + return 4095; +} + +#endif +_mali_osk_errcode_t mali_platform_power_mode_change(mali_power_mode power_mode) +{ + MALI_SUCCESS; +} + |