aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/video/samsung/mali/common/pmm/mali_pmm_pmu.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/samsung/mali/common/pmm/mali_pmm_pmu.c')
-rw-r--r--drivers/media/video/samsung/mali/common/pmm/mali_pmm_pmu.c350
1 files changed, 0 insertions, 350 deletions
diff --git a/drivers/media/video/samsung/mali/common/pmm/mali_pmm_pmu.c b/drivers/media/video/samsung/mali/common/pmm/mali_pmm_pmu.c
deleted file mode 100644
index a8160ac..0000000
--- a/drivers/media/video/samsung/mali/common/pmm/mali_pmm_pmu.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/*
- * Copyright (C) 2010 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_pmm_pmu.c
- * Mali driver functions for Mali 400 PMU hardware
- */
-#include "mali_kernel_common.h"
-#include "mali_osk.h"
-#include "mali_platform.h"
-
-#if USING_MALI_PMU
-#if USING_MALI_PMM
-
-#include "mali_pmm.h"
-
-/* Internal test on/off */
-#define PMU_TEST 0
-
-#if MALI_POWER_MGMT_TEST_SUITE
-#include "mali_platform_pmu_internal_testing.h"
-#endif /* MALI_POWER_MGMT_TEST_SUITE */
-
-/** @brief PMU hardware info
- */
-typedef struct platform_pmu
-{
- u32 reg_base_addr; /**< PMU registers base address */
- u32 reg_size; /**< PMU registers size */
- const char *name; /**< PMU name */
- u32 irq_num; /**< PMU irq number */
-
- mali_io_address reg_mapped; /**< IO-mapped pointer to registers */
-} platform_pmu_t;
-
-static platform_pmu_t *pmu_info = NULL;
-
-/** @brief Register layout for hardware PMU
- */
-typedef enum {
- PMU_REG_ADDR_MGMT_POWER_UP = 0x00, /*< Power up register */
- PMU_REG_ADDR_MGMT_POWER_DOWN = 0x04, /*< Power down register */
- PMU_REG_ADDR_MGMT_STATUS = 0x08, /*< Core sleep status register */
- PMU_REG_ADDR_MGMT_INT_MASK = 0x0C, /*< Interrupt mask register */
- PMU_REG_ADDR_MGMT_INT_RAWSTAT = 0x10, /*< Interrupt raw status register */
- PMU_REG_ADDR_MGMT_INT_STAT = 0x14, /*< Interrupt status register */
- PMU_REG_ADDR_MGMT_INT_CLEAR = 0x18, /*< Interrupt clear register */
- PMU_REG_ADDR_MGMT_SW_DELAY = 0x1C, /*< Software delay register */
- PMU_REG_ADDR_MGMT_MASTER_PWR_UP = 0x24, /*< Master power up register */
- PMU_REGISTER_ADDRESS_SPACE_SIZE = 0x28, /*< Size of register space */
-} pmu_reg_addr_mgmt_addr;
-
-/* Internal functions */
-static u32 pmu_reg_read(platform_pmu_t *pmu, u32 relative_address);
-static void pmu_reg_write(platform_pmu_t *pmu, u32 relative_address, u32 new_val);
-static mali_pmm_core_mask pmu_translate_cores_to_pmu(mali_pmm_core_mask cores);
-#if PMU_TEST
-static void pmm_pmu_dump_regs( platform_pmu_t *pmu );
-static pmm_pmu_test( platform_pmu_t *pmu, u32 cores );
-#endif
-
-_mali_osk_errcode_t mali_pmm_pmu_init(_mali_osk_resource_t *resource)
-{
-
- if( resource->type == PMU )
- {
- if( (resource->base == 0) ||
- (resource->description == NULL) )
- {
- /* NOTE: We currently don't care about any other resource settings */
- MALI_PRINT_ERROR(("PLATFORM mali400-pmu: Missing PMU set up information\n"));
- MALI_ERROR(_MALI_OSK_ERR_INVALID_ARGS);
- }
- pmu_info = (platform_pmu_t *)_mali_osk_malloc(sizeof(*pmu_info));
- MALI_CHECK_NON_NULL( pmu_info, _MALI_OSK_ERR_NOMEM );
-
- /* All values get 0 as default */
- _mali_osk_memset(pmu_info, 0, sizeof(*pmu_info));
-
- pmu_info->reg_base_addr = resource->base;
- pmu_info->reg_size = (u32)PMU_REGISTER_ADDRESS_SPACE_SIZE;
- pmu_info->name = resource->description;
- pmu_info->irq_num = resource->irq;
-
- if( _MALI_OSK_ERR_OK != _mali_osk_mem_reqregion(pmu_info->reg_base_addr, pmu_info->reg_size, pmu_info->name) )
- {
- MALI_PRINT_ERROR(("PLATFORM mali400-pmu: Could not request register region (0x%08X - 0x%08X) for %s\n",
- pmu_info->reg_base_addr, pmu_info->reg_base_addr + pmu_info->reg_size - 1, pmu_info->name));
- goto cleanup;
- }
- else
- {
- MALI_DEBUG_PRINT( 4, ("PLATFORM mali400-pmu: Success: request_mem_region: (0x%08X - 0x%08X) for %s\n",
- pmu_info->reg_base_addr, pmu_info->reg_base_addr + pmu_info->reg_size - 1, pmu_info->name));
- }
-
- pmu_info->reg_mapped = _mali_osk_mem_mapioregion( pmu_info->reg_base_addr, pmu_info->reg_size, pmu_info->name );
-
- if( 0 == pmu_info->reg_mapped )
- {
- MALI_PRINT_ERROR(("PLATFORM mali400-pmu: Could not ioremap registers for %s .\n", pmu_info->name));
- _mali_osk_mem_unreqregion( pmu_info->reg_base_addr, pmu_info->reg_size );
- goto cleanup;
- }
- else
- {
- MALI_DEBUG_PRINT( 4, ("PLATFORM mali400-pmu: Success: ioremap_nocache: Internal ptr: (0x%08X - 0x%08X) for %s\n",
- (u32) pmu_info->reg_mapped,
- ((u32)pmu_info->reg_mapped)+ pmu_info->reg_size - 1,
- pmu_info->name));
- }
-
- MALI_DEBUG_PRINT( 4, ("PLATFORM mali400-pmu: Success: Mapping registers to %s\n", pmu_info->name));
-
-#if PMU_TEST
- pmu_test(pmu_info, (MALI_PMM_CORE_GP));
- pmu_test(pmu_info, (MALI_PMM_CORE_GP|MALI_PMM_CORE_L2|MALI_PMM_CORE_PP0));
-#endif
-
- MALI_DEBUG_PRINT( 4, ("PLATFORM mali400-pmu: Initialized - %s\n", pmu_info->name) );
- }
- else
- {
- /* Didn't expect a different resource */
- MALI_ERROR(_MALI_OSK_ERR_INVALID_ARGS);
- }
-
- MALI_SUCCESS;
-
-cleanup:
- _mali_osk_free(pmu_info);
- pmu_info = NULL;
- MALI_ERROR(_MALI_OSK_ERR_NOMEM);
-}
-
-_mali_osk_errcode_t mali_pmm_pmu_deinit(_mali_osk_resource_type_t *type)
-{
- if (*type == PMU)
- {
- if( pmu_info )
- {
- _mali_osk_mem_unmapioregion(pmu_info->reg_base_addr, pmu_info->reg_size, pmu_info->reg_mapped);
- _mali_osk_mem_unreqregion(pmu_info->reg_base_addr, pmu_info->reg_size);
- _mali_osk_free(pmu_info);
- pmu_info = NULL;
- MALI_DEBUG_PRINT( 4, ("PLATFORM mali400-pmu: Terminated PMU\n") );
- }
- }
- else
- {
- /* Didn't expect a different resource */
- MALI_ERROR(_MALI_OSK_ERR_INVALID_ARGS);
- }
-
- MALI_SUCCESS;
-
-}
-
-_mali_osk_errcode_t mali_pmm_pmu_powerdown(u32 cores)
-{
- u32 stat;
- u32 timeout;
- u32 cores_pmu;
-
- MALI_DEBUG_ASSERT_POINTER(pmu_info);
- MALI_DEBUG_ASSERT( cores != 0 ); /* Shouldn't receive zero from PMM */
- MALI_DEBUG_PRINT( 4, ("PLATFORM mali400-pmu: power down (0x%x)\n", cores) );
-
- cores_pmu = pmu_translate_cores_to_pmu(cores);
- pmu_reg_write( pmu_info, (u32)PMU_REG_ADDR_MGMT_POWER_DOWN, cores_pmu );
-
- /* Wait for cores to be powered down */
- timeout = 10; /* 10ms */
- do
- {
- /* Get status of sleeping cores */
- stat = pmu_reg_read( pmu_info, (u32)PMU_REG_ADDR_MGMT_STATUS );
- stat &= cores_pmu;
- if( stat == cores_pmu ) break; /* All cores we wanted are now asleep */
- _mali_osk_time_ubusydelay(1000); /* 1ms */
- timeout--;
- } while( timeout > 0 );
-
- if( timeout == 0 ) MALI_ERROR(_MALI_OSK_ERR_TIMEOUT);
-
- MALI_SUCCESS;
-}
-
-_mali_osk_errcode_t mali_pmm_pmu_powerup(u32 cores)
-{
- u32 cores_pmu;
- u32 stat;
- u32 timeout;
-
- MALI_DEBUG_ASSERT_POINTER(pmu_info);
- MALI_DEBUG_ASSERT( cores != 0 ); /* Shouldn't receive zero from PMM */
- MALI_DEBUG_PRINT( 4, ("PLATFORM mali400-pmu: power up (0x%x)\n", cores) );
-
- /* Don't use interrupts - just poll status */
- pmu_reg_write( pmu_info, (u32)PMU_REG_ADDR_MGMT_INT_MASK, 0 );
- cores_pmu = pmu_translate_cores_to_pmu(cores);
- pmu_reg_write( pmu_info, (u32)PMU_REG_ADDR_MGMT_POWER_UP, cores_pmu );
-
- timeout = 10; /* 10ms */
- do
- {
- /* Get status of sleeping cores */
- stat = pmu_reg_read( pmu_info, (u32)PMU_REG_ADDR_MGMT_STATUS );
- stat &= cores_pmu;
- if( stat == 0 ) break; /* All cores we wanted are now awake */
- _mali_osk_time_ubusydelay(1000); /* 1ms */
- timeout--;
- } while( timeout > 0 );
-
- if( timeout == 0 ) MALI_ERROR(_MALI_OSK_ERR_TIMEOUT);
-
- MALI_SUCCESS;
-}
-
-
-/***** INTERNAL *****/
-
-/** @brief Internal PMU function to translate the cores bit mask
- * into something the hardware PMU understands
- *
- * @param cores PMM cores bitmask
- * @return PMU hardware cores bitmask
- */
-static u32 pmu_translate_cores_to_pmu(mali_pmm_core_mask cores)
-{
- /* For Mali 400 PMU the cores mask is already the same as what
- * the hardware PMU expects.
- * For other hardware, some translation can be done here, by
- * translating the MALI_PMM_CORE_* bits into specific hardware
- * bits
- */
- return cores;
-}
-
-/** @brief Internal PMU function to read a PMU register
- *
- * @param pmu handle that identifies the PMU hardware
- * @param relative_address relative PMU hardware address to read from
- * @return 32-bit value that was read from the address
- */
-static u32 pmu_reg_read(platform_pmu_t *pmu, u32 relative_address)
-{
- u32 read_val;
-
- MALI_DEBUG_ASSERT_POINTER(pmu);
- MALI_DEBUG_ASSERT((relative_address & 0x03) == 0);
- MALI_DEBUG_ASSERT(relative_address < pmu->reg_size);
-
- read_val = _mali_osk_mem_ioread32(pmu->reg_mapped, relative_address);
-
- MALI_DEBUG_PRINT( 5, ("PMU: reg_read: %s Addr:0x%04X Val:0x%08x\n",
- pmu->name, relative_address, read_val));
-
- return read_val;
-}
-
-/** @brief Internal PMU function to write to a PMU register
- *
- * @param pmu handle that identifies the PMU hardware
- * @param relative_address relative PMU hardware address to write to
- * @param new_val new 32-bit value to write into the address
- */
-static void pmu_reg_write(platform_pmu_t *pmu, u32 relative_address, u32 new_val)
-{
- MALI_DEBUG_ASSERT_POINTER(pmu);
- MALI_DEBUG_ASSERT((relative_address & 0x03) == 0);
- MALI_DEBUG_ASSERT(relative_address < pmu->reg_size);
-
- MALI_DEBUG_PRINT( 5, ("PMU: reg_write: %s Addr:0x%04X Val:0x%08x\n",
- pmu->name, relative_address, new_val));
-
- _mali_osk_mem_iowrite32(pmu->reg_mapped, relative_address, new_val);
-}
-
-#if PMU_TEST
-
-/***** TEST *****/
-
-static void pmu_dump_regs( platform_pmu_t *pmu )
-{
- u32 addr;
- for( addr = 0x0; addr < PMU_REGISTER_ADDRESS_SPACE_SIZE; addr += 0x4 )
- {
- MALI_PRINT( ("PMU_REG: 0x%08x: 0x%04x\n", (addr + pmu->reg_base_addr), pmu_reg_read( pmu, addr ) ) );
- }
-}
-
-/* This function is an internal test for the PMU without any Mali h/w interaction */
-static void pmu_test( platform_pmu_t *pmu, u32 cores )
-{
- u32 stat;
- u32 timeout;
-
- MALI_PRINT( ("PMU_TEST: Start\n") );
-
- pmu_dump_regs( pmu );
-
- MALI_PRINT( ("PMU_TEST: Power down cores: 0x%x\n", cores) );
- _mali_pmm_pmu_power_down( pmu, cores, MALI_TRUE );
-
- stat = pmu_reg_read( pmu, (u32)PMU_REG_ADDR_MGMT_STATUS );
- MALI_PRINT( ("PMU_TEST: %s\n", (stat & cores) == cores ? "SUCCESS" : "FAIL" ) );
-
- pmu_dump_regs( pmu );
-
- MALI_PRINT( ("PMU_TEST: Power up cores: 0x%x\n", cores) );
- _mali_pmm_pmu_power_up( pmu, cores, MALI_FALSE );
-
- MALI_PRINT( ("PMU_TEST: Waiting for power up...\n") );
- timeout = 1000; /* 1 sec */
- while( !_mali_pmm_pmu_irq_power_up(pmu) && timeout > 0 )
- {
- _mali_osk_time_ubusydelay(1000); /* 1ms */
- timeout--;
- }
-
- MALI_PRINT( ("PMU_TEST: Waited %dms for interrupt\n", (1000-timeout)) );
- stat = pmu_reg_read( pmu, (u32)PMU_REG_ADDR_MGMT_STATUS );
- MALI_PRINT( ("PMU_TEST: %s\n", (stat & cores) == 0 ? "SUCCESS" : "FAIL" ) );
-
- _mali_pmm_pmu_irq_power_up_clear(pmu);
-
- pmu_dump_regs( pmu );
-
- MALI_PRINT( ("PMU_TEST: Finish\n") );
-}
-#endif /* PMU_TEST */
-
-#if MALI_POWER_MGMT_TEST_SUITE
-
-u32 pmu_get_power_up_down_info(void)
-{
- return pmu_reg_read(pmu_info, (u32)PMU_REG_ADDR_MGMT_STATUS);
-}
-
-#endif /* MALI_POWER_MGMT_TEST_SUITE */
-#endif /* USING_MALI_PMM */
-#endif /* USING_MALI_PMU */
generated by cgit v1.1 at 2024-06-09 20:22:31 +0000