From ca605bb68ccd1216871659371497f1e6a2543dc4 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 7 Aug 2009 19:24:36 +0100 Subject: [PATCH] Staging: sep: Use filp->private_data to create proper device instances Move from using a sep_dev global. The workqueue still uses it and we use the pointer in order to know if a device was found. This requires some restructuring as the pci probe and the init module logic are all rather messed up and only worked by luck. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/staging/sep/sep_driver.c | 719 +++++++++++++++++-------------- 1 file changed, 395 insertions(+), 324 deletions(-) diff --git a/drivers/staging/sep/sep_driver.c b/drivers/staging/sep/sep_driver.c index 837b82884a8..2d7f0c7e6a8 100644 --- a/drivers/staging/sep/sep_driver.c +++ b/drivers/staging/sep/sep_driver.c @@ -68,7 +68,7 @@ /* 2M size */ -static void sep_load_rom_code(void) +static void sep_load_rom_code(struct sep_device *sep) { /* Index variables */ unsigned long i, k, j; @@ -82,15 +82,15 @@ static void sep_load_rom_code(void) edbg("SEP Driver: DX_CC_TST_SepRomLoader start\n"); edbg("SEP Driver: k is %lu\n", k); - edbg("SEP Driver: sep_dev->reg_addr is %p\n", sep_dev->reg_addr); + edbg("SEP Driver: sep->reg_addr is %p\n", sep->reg_addr); edbg("SEP Driver: CRYS_SEP_ROM_start_address_offset is %p\n", CRYS_SEP_ROM_start_address_offset); for (i = 0; i < 4; i++) { /* write bank */ - sep_write_reg(sep_dev, SEP_ROM_BANK_register_offset, i); + sep_write_reg(sep, SEP_ROM_BANK_register_offset, i); for (j = 0; j < CRYS_SEP_ROM_length / 4; j++) { - sep_write_reg(sep_dev, CRYS_SEP_ROM_start_address_offset + 4 * j, CRYS_SEP_ROM[i * 0x1000 + j]); + sep_write_reg(sep, CRYS_SEP_ROM_start_address_offset + 4 * j, CRYS_SEP_ROM[i * 0x1000 + j]); k = k - 4; @@ -102,11 +102,11 @@ static void sep_load_rom_code(void) } /* reset the SEP */ - sep_write_reg(sep_dev, HW_HOST_SEP_SW_RST_REG_ADDR, 0x1); + sep_write_reg(sep, HW_HOST_SEP_SW_RST_REG_ADDR, 0x1); /* poll for SEP ROM boot finish */ do { - reg = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR3_REG_ADDR); + reg = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR3_REG_ADDR); } while (!reg); edbg("SEP Driver: ROM polling ended\n"); @@ -114,29 +114,29 @@ static void sep_load_rom_code(void) switch (reg) { case 0x1: /* fatal error - read erro status from GPRO */ - error = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR); + error = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR0_REG_ADDR); edbg("SEP Driver: ROM polling case 1\n"); break; case 0x2: /* Boot First Phase ended */ - warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR); + warning = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR0_REG_ADDR); edbg("SEP Driver: ROM polling case 2\n"); break; case 0x4: /* Cold boot ended successfully */ - warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR); + warning = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR0_REG_ADDR); edbg("SEP Driver: ROM polling case 4\n"); error = 0; break; case 0x8: /* Warmboot ended successfully */ - warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR); + warning = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR0_REG_ADDR); edbg("SEP Driver: ROM polling case 8\n"); error = 0; break; case 0x10: /* ColdWarm boot ended successfully */ - warning = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR); + warning = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR0_REG_ADDR); edbg("SEP Driver: ROM polling case 16\n"); error = 0; break; @@ -148,7 +148,7 @@ static void sep_load_rom_code(void) } #else -static void sep_load_rom_code(void) { } +static void sep_load_rom_code(struct sep_device *sep) { } #endif /* SEP_DRIVER_ARM_DEBUG_MODE */ @@ -188,7 +188,13 @@ static DECLARE_WAIT_QUEUE_HEAD(sep_event); destination memory, which is external to Linux VM and is given as physical address */ -static int sep_copy_cache_resident_to_area(unsigned long src_cache_addr, unsigned long cache_size_in_bytes, unsigned long src_resident_addr, unsigned long resident_size_in_bytes, unsigned long *dst_new_cache_addr_ptr, unsigned long *dst_new_resident_addr_ptr) +static int sep_copy_cache_resident_to_area(struct sep_device *sep, + unsigned long src_cache_addr, + unsigned long cache_size_in_bytes, + unsigned long src_resident_addr, + unsigned long resident_size_in_bytes, + unsigned long *dst_new_cache_addr_ptr, + unsigned long *dst_new_resident_addr_ptr) { unsigned long resident_addr; unsigned long cache_addr; @@ -205,16 +211,16 @@ static int sep_copy_cache_resident_to_area(unsigned long src_cache_addr, unsigne -------------------------------------*/ error = 0; - edbg("SEP Driver:rar_virtual is %p\n", sep_dev->rar_addr); - edbg("SEP Driver:rar_physical is %08lx\n", sep_dev->rar_bus); + edbg("SEP Driver:rar_virtual is %p\n", sep->rar_addr); + edbg("SEP Driver:rar_physical is %08lx\n", sep->rar_bus); - sep_dev->rar_region_addr = (unsigned long) sep_dev->rar_addr; + sep->rar_region_addr = (unsigned long) sep->rar_addr; - sep_dev->cache_bus = sep_dev->rar_bus; - sep_dev->cache_addr = sep_dev->rar_addr; + sep->cache_bus = sep->rar_bus; + sep->cache_addr = sep->rar_addr; /* load cache */ - error = request_firmware(&fw, cache_name, &sep_dev->pdev->dev); + error = request_firmware(&fw, cache_name, &sep->pdev->dev); if (error) { edbg("SEP Driver:cant request cache fw\n"); goto end_function; @@ -231,11 +237,11 @@ static int sep_copy_cache_resident_to_area(unsigned long src_cache_addr, unsigne release_firmware(fw); - sep_dev->resident_bus = sep_dev->cache_bus + sep_dev->cache_size; - sep_dev->resident_addr = sep_dev->cache_addr + sep_dev->cache_size; + sep->resident_bus = sep->cache_bus + sep->cache_size; + sep->resident_addr = sep->cache_addr + sep->cache_size; /* load resident */ - error = request_firmware(&fw, res_name, &sep_dev->pdev->dev); + error = request_firmware(&fw, res_name, &sep->pdev->dev); if (error) { edbg("SEP Driver:cant request res fw\n"); goto end_function; @@ -244,28 +250,28 @@ static int sep_copy_cache_resident_to_area(unsigned long src_cache_addr, unsigne edbg("SEP Driver:res data loc is %p\n", (void *) fw->data); edbg("SEP Driver:res data size is %08Zx\n", fw->size); - memcpy((void *) sep_dev->resident_addr, (void *) fw->data, fw->size); + memcpy((void *) sep->resident_addr, (void *) fw->data, fw->size); - sep_dev->resident_size = fw->size; + sep->resident_size = fw->size; release_firmware(fw); - resident_addr = (unsigned long) sep_dev->resident_addr; + resident_addr = (unsigned long) sep->resident_addr; - edbg("SEP Driver:resident_addr (physical )is %08lx\n", sep_dev->resident_bus); - edbg("SEP Driver:cache_addr (physical) is %08lx\n", sep_dev->cache_bus); + edbg("SEP Driver:resident_addr (physical )is %08lx\n", sep->resident_bus); + edbg("SEP Driver:cache_addr (physical) is %08lx\n", sep->cache_bus); edbg("SEP Driver:resident_addr (logical )is %08lx\n", resident_addr); edbg("SEP Driver:cache_addr (logical) is %08lx\n", cache_addr); - edbg("SEP Driver:resident_size is %08lx\n", sep_dev->resident_size); - edbg("SEP Driver:cache_size is %08lx\n", sep_dev->cache_size); + edbg("SEP Driver:resident_size is %08lx\n", sep->resident_size); + edbg("SEP Driver:cache_size is %08lx\n", sep->cache_size); /* physical addresses */ - *dst_new_cache_addr_ptr = sep_dev->cache_bus; - *dst_new_resident_addr_ptr = sep_dev->resident_bus; + *dst_new_cache_addr_ptr = sep->cache_bus; + *dst_new_resident_addr_ptr = sep->resident_bus; end_function: return error; } @@ -280,21 +286,24 @@ end_function: shared area, and phys_shared_area_addr_ptr - the physical address of the shared area */ -static int sep_map_and_alloc_shared_area(unsigned long shared_area_size, unsigned long *kernel_shared_area_addr_ptr, unsigned long *phys_shared_area_addr_ptr) +static int sep_map_and_alloc_shared_area(struct sep_device *sep, + unsigned long shared_area_size, + unsigned long *kernel_shared_area_addr_ptr, + unsigned long *phys_shared_area_addr_ptr) { - // shared_addr = ioremap_nocache(0xda00000,shared_area_size); - sep_dev->shared_addr = kmalloc(shared_area_size, GFP_KERNEL); - if (!sep_dev->shared_addr) { + /* shared_addr = ioremap_nocache(0xda00000,shared_area_size); */ + sep->shared_addr = kmalloc(shared_area_size, GFP_KERNEL); + if (!sep->shared_addr) { edbg("sep_driver:shared memory kmalloc failed\n"); return -1; } /* FIXME */ - sep_dev->shared_bus = __pa(sep_dev->shared_addr); + sep_dev->shared_bus = __pa(sep->shared_addr); /* shared_bus = 0xda00000; */ - *kernel_shared_area_addr_ptr = (unsigned long) sep_dev->shared_addr; + *kernel_shared_area_addr_ptr = (unsigned long) sep->shared_addr; /* set the physical address of the shared area */ - *phys_shared_area_addr_ptr = sep_dev->shared_bus; - edbg("SEP Driver:shared_addr is %p\n", sep_dev->shared_addr); + *phys_shared_area_addr_ptr = sep->shared_bus; + edbg("SEP Driver:shared_addr is %p\n", sep->shared_addr); edbg("SEP Driver:shared_region_size is %08lx\n", shared_area_size); edbg("SEP Driver:shared_physical_addr is %08lx\n", *phys_shared_area_addr_ptr); @@ -320,12 +329,13 @@ static void sep_unmap_and_free_shared_area(unsigned long shared_area_size, unsig (ioremapped), or on the system RAM This implementation is for the external RAM */ -static unsigned long sep_shared_area_virt_to_phys(unsigned long virt_address) +static unsigned long sep_shared_area_virt_to_phys(struct sep_device *sep, + unsigned long virt_address) { edbg("SEP Driver:sh virt to phys v %08lx\n", virt_address); - edbg("SEP Driver:sh virt to phys p %08lx\n", sep_dev->shared_bus + (virt_address - (unsigned long) sep_dev->shared_addr)); + edbg("SEP Driver:sh virt to phys p %08lx\n", sep->shared_bus + (virt_address - (unsigned long) sep->shared_addr)); - return (unsigned long) sep_dev->shared_bus + (virt_address - (unsigned long) sep_dev->shared_addr); + return (unsigned long) sep->shared_bus + (virt_address - (unsigned long) sep->shared_addr); } /* @@ -334,9 +344,10 @@ static unsigned long sep_shared_area_virt_to_phys(unsigned long virt_address) externa RAM device (ioremapped), or on the system RAM This implementation is for the external RAM */ -static unsigned long sep_shared_area_phys_to_virt(unsigned long phys_address) +static unsigned long sep_shared_area_phys_to_virt(struct sep_device *sep, + unsigned long phys_address) { - return (unsigned long) sep_dev->shared_addr + (phys_address - sep_dev->shared_bus); + return (unsigned long) sep->shared_addr + (phys_address - sep->shared_bus); } @@ -362,10 +373,15 @@ static int sep_open(struct inode *inode, struct file *filp) edbg("SEP Driver: down_interruptible failed\n"); goto end_function; } + /* Bind to the device, we only have one which makes it easy */ + filp->private_data = sep_dev; + if (sep_dev == NULL) + return -ENODEV; /* release data pool allocations */ sep_dev->data_pool_bytes_allocated = 0; + end_function: dbg("SEP Driver:<-------- open end\n"); return error; @@ -377,15 +393,16 @@ end_function: /*------------------------------------------------------------ release function -------------------------------------------------------------*/ -static int sep_release(struct inode *inode_ptr, struct file *file_ptr) +static int sep_release(struct inode *inode_ptr, struct file *filp) { + struct sep_driver *sep = filp->private_data; dbg("----------->SEP Driver: sep_release start\n"); #if 0 /*!SEP_DRIVER_POLLING_MODE */ /* close IMR */ - sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, 0x7FFF); + sep_write_reg(sep, HW_HOST_IMR_REG_ADDR, 0x7FFF); /* release IRQ line */ - free_irq(SEP_DIRVER_IRQ_NUM, &sep_dev->reg_addr); + free_irq(SEP_DIRVER_IRQ_NUM, sep); #endif /* unlock the sep mutex */ @@ -403,6 +420,7 @@ static int sep_release(struct inode *inode_ptr, struct file *file_ptr) static int sep_mmap(struct file *filp, struct vm_area_struct *vma) { unsigned long phys_addr; + struct sep_device *sep = filp->private_data; dbg("-------->SEP Driver: mmap start\n"); @@ -417,10 +435,10 @@ static int sep_mmap(struct file *filp, struct vm_area_struct *vma) return -EAGAIN; } - edbg("SEP Driver:sep_dev->message_shared_area_addr is %08lx\n", sep_dev->message_shared_area_addr); + edbg("SEP Driver:sep->message_shared_area_addr is %08lx\n", sep->message_shared_area_addr); /* get physical address */ - phys_addr = sep_dev->shared_area_bus; + phys_addr = sep->shared_area_bus; edbg("SEP Driver: phys_addr is %08lx\n", phys_addr); @@ -444,38 +462,39 @@ static unsigned int sep_poll(struct file *filp, poll_table * wait) unsigned long count; unsigned int mask = 0; unsigned long retVal = 0; /* flow id */ + struct sep_device *sep = filp->private_data; dbg("---------->SEP Driver poll: start\n"); #if SEP_DRIVER_POLLING_MODE - while (sep_dev->send_ct != (retVal & 0x7FFFFFFF)) { - retVal = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR2_REG_ADDR); + while (sep->send_ct != (retVal & 0x7FFFFFFF)) { + retVal = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR2_REG_ADDR); for (count = 0; count < 10 * 4; count += 4) - edbg("Poll Debug Word %lu of the message is %lu\n", count, *((unsigned long *) (sep_dev->shared_area + SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES + count))); + edbg("Poll Debug Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES + count))); } - sep_dev->reply_ct++; + sep->reply_ct++; #else /* add the event to the polling wait table */ poll_wait(filp, &sep_event, wait); #endif - edbg("sep_dev->send_ct is %lu\n", sep_dev->send_ct); - edbg("sep_dev->reply_ct is %lu\n", sep_dev->reply_ct); + edbg("sep->send_ct is %lu\n", sep->send_ct); + edbg("sep->reply_ct is %lu\n", sep->reply_ct); /* check if the data is ready */ - if (sep_dev->send_ct == sep_dev->reply_ct) { + if (sep->send_ct == sep->reply_ct) { for (count = 0; count < 12 * 4; count += 4) - edbg("Sep Mesg Word %lu of the message is %lu\n", count, *((unsigned long *) (sep_dev->shared_area + count))); + edbg("Sep Mesg Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + count))); for (count = 0; count < 10 * 4; count += 4) - edbg("Debug Data Word %lu of the message is %lu\n", count, *((unsigned long *) (sep_dev->shared_area + 0x1800 + count))); + edbg("Debug Data Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + 0x1800 + count))); - retVal = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR2_REG_ADDR); + retVal = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR2_REG_ADDR); edbg("retVal is %lu\n", retVal); /* check if the this is sep reply or request */ if (retVal >> 31) { @@ -494,7 +513,7 @@ static unsigned int sep_poll(struct file *filp, poll_table * wait) /* calculates time and sets it at the predefined address */ -static int sep_set_time(unsigned long *address_ptr, unsigned long *time_in_sec_ptr) +static int sep_set_time(struct sep_device *sep, unsigned long *address_ptr, unsigned long *time_in_sec_ptr) { struct timeval time; /* address of time in the kernel */ @@ -506,18 +525,18 @@ static int sep_set_time(unsigned long *address_ptr, unsigned long *time_in_sec_p do_gettimeofday(&time); /* set value in the SYSTEM MEMORY offset */ - time_addr = sep_dev->message_shared_area_addr + SEP_DRIVER_SYSTEM_TIME_MEMORY_OFFSET_IN_BYTES; + time_addr = sep->message_shared_area_addr + SEP_DRIVER_SYSTEM_TIME_MEMORY_OFFSET_IN_BYTES; *(unsigned long *) time_addr = SEP_TIME_VAL_TOKEN; *(unsigned long *) (time_addr + 4) = time.tv_sec; edbg("SEP Driver:time.tv_sec is %lu\n", time.tv_sec); edbg("SEP Driver:time_addr is %lu\n", time_addr); - edbg("SEP Driver:sep_dev->message_shared_area_addr is %lu\n", sep_dev->message_shared_area_addr); + edbg("SEP Driver:sep->message_shared_area_addr is %lu\n", sep->message_shared_area_addr); /* set the output parameters if needed */ if (address_ptr) - *address_ptr = sep_shared_area_virt_to_phys(time_addr); + *address_ptr = sep_shared_area_virt_to_phys(sep, time_addr); if (time_in_sec_ptr) *time_in_sec_ptr = time.tv_sec; @@ -531,23 +550,23 @@ static int sep_set_time(unsigned long *address_ptr, unsigned long *time_in_sec_p This function raises interrupt to SEP that signals that is has a new command from HOST */ -static void sep_send_command_handler(void) +static void sep_send_command_handler(struct sep_device *sep) { unsigned long count; dbg("SEP Driver:--------> sep_send_command_handler start\n"); - sep_set_time(0, 0); + sep_set_time(sep, 0, 0); /* flash cache */ flush_cache_all(); for (count = 0; count < 12 * 4; count += 4) - edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep_dev->shared_area + count))); + edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + count))); /* update counter */ - sep_dev->send_ct++; + sep->send_ct++; /* send interrupt to SEP */ - sep_write_reg(sep_dev, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x2); + sep_write_reg(sep, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x2); dbg("SEP Driver:<-------- sep_send_command_handler end\n"); return; } @@ -556,7 +575,7 @@ static void sep_send_command_handler(void) This function raises interrupt to SEPm that signals that is has a new command from HOST */ -static void sep_send_reply_command_handler(void) +static void sep_send_reply_command_handler(struct sep_device *sep) { unsigned long count; @@ -565,14 +584,14 @@ static void sep_send_reply_command_handler(void) /* flash cache */ flush_cache_all(); for (count = 0; count < 12 * 4; count += 4) - edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep_dev->shared_area + count))); + edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + count))); /* update counter */ - sep_dev->send_ct++; + sep->send_ct++; /* send the interrupt to SEP */ - sep_write_reg(sep_dev, HW_HOST_HOST_SEP_GPR2_REG_ADDR, sep_dev->send_ct); + sep_write_reg(sep, HW_HOST_HOST_SEP_GPR2_REG_ADDR, sep->send_ct); /* update both counters */ - sep_dev->send_ct++; - sep_dev->reply_ct++; + sep->send_ct++; + sep->reply_ct++; dbg("SEP Driver:<-------- sep_send_reply_command_handler end\n"); } @@ -583,7 +602,8 @@ static void sep_send_reply_command_handler(void) Therefore, the FVOs in user space can calculate the exact virtual address of this allocated memory */ -static int sep_allocate_data_pool_memory_handler(unsigned long arg) +static int sep_allocate_data_pool_memory_handler(struct sep_device *sep, + unsigned long arg) { int error; struct sep_driver_alloc_t command_args; @@ -595,14 +615,15 @@ static int sep_allocate_data_pool_memory_handler(unsigned long arg) goto end_function; /* allocate memory */ - if ((sep_dev->data_pool_bytes_allocated + command_args.num_bytes) > SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES) { + if ((sep->data_pool_bytes_allocated + command_args.num_bytes) > SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES) { + /* FIXME: ENOMEM ? */ error = -ENOTTY; goto end_function; } /* set the virtual and physical address */ - command_args.offset = SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES + sep_dev->data_pool_bytes_allocated; - command_args.phys_address = sep_dev->shared_area_bus + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES + sep_dev->data_pool_bytes_allocated; + command_args.offset = SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES + sep->data_pool_bytes_allocated; + command_args.phys_address = sep->shared_area_bus + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES + sep->data_pool_bytes_allocated; /* write the memory back to the user space */ error = copy_to_user((void *) arg, (void *) &command_args, sizeof(struct sep_driver_alloc_t)); @@ -610,7 +631,7 @@ static int sep_allocate_data_pool_memory_handler(unsigned long arg) goto end_function; /* set the allocation */ - sep_dev->data_pool_bytes_allocated += command_args.num_bytes; + sep->data_pool_bytes_allocated += command_args.num_bytes; end_function: dbg("SEP Driver:<-------- sep_allocate_data_pool_memory_handler end\n"); @@ -620,7 +641,7 @@ end_function: /* This function handles write into allocated data pool command */ -static int sep_write_into_data_pool_handler(unsigned long arg) +static int sep_write_into_data_pool_handler(struct sep_device *sep, unsigned long arg) { int error; unsigned long virt_address; @@ -646,11 +667,12 @@ static int sep_write_into_data_pool_handler(unsigned long arg) goto end_function; /* calculate the start of the data pool */ - data_pool_area_addr = sep_dev->shared_area + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES; + data_pool_area_addr = sep->shared_area + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES; /* check that the range of the virtual kernel address is correct */ - if ((virt_address < data_pool_area_addr) || (virt_address > (data_pool_area_addr + SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES))) { + if (virt_address < data_pool_area_addr || virt_address > (data_pool_area_addr + SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES)) { + /* FIXME: EINVAL ? */ error = -ENOTTY; goto end_function; } @@ -664,7 +686,7 @@ end_function: /* this function handles the read from data pool command */ -static int sep_read_from_data_pool_handler(unsigned long arg) +static int sep_read_from_data_pool_handler(struct sep_device *sep, unsigned long arg) { int error; /* virtual address of dest application buffer */ @@ -692,10 +714,12 @@ static int sep_read_from_data_pool_handler(unsigned long arg) goto end_function; /* calculate the start of the data pool */ - data_pool_area_addr = sep_dev->shared_area + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES; + data_pool_area_addr = sep->shared_area + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES; + /* FIXME: These are incomplete all over the driver: what about + len + and when doing that also overflows */ /* check that the range of the virtual kernel address is correct */ - if ((virt_address < data_pool_area_addr) || (virt_address > (data_pool_area_addr + SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES))) { + if (virt_address < data_pool_area_addr || virt_address > data_pool_area_addr + SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES) { error = -ENOTTY; goto end_function; } @@ -741,7 +765,12 @@ static int sep_free_dma_pages(struct page **page_array_ptr, unsigned long num_pa and construct a basic lli array, where each entry holds the physical page address and the size that application data holds in this physical pages */ -static int sep_lock_kernel_pages(unsigned long kernel_virt_addr, unsigned long data_size, unsigned long *num_pages_ptr, struct sep_lli_entry_t **lli_array_ptr, struct page ***page_array_ptr) +static int sep_lock_kernel_pages(struct sep_device *sep, + unsigned long kernel_virt_addr, + unsigned long data_size, + unsigned long *num_pages_ptr, + struct sep_lli_entry_t **lli_array_ptr, + struct page ***page_array_ptr) { int error = 0; /* the the page of the end address of the user space buffer */ @@ -830,7 +859,12 @@ end_function: and construct a basic lli array, where each entry holds the physical page address and the size that application data holds in this physical pages */ -static int sep_lock_user_pages(unsigned long app_virt_addr, unsigned long data_size, unsigned long *num_pages_ptr, struct sep_lli_entry_t **lli_array_ptr, struct page ***page_array_ptr) +static int sep_lock_user_pages(struct sep_device *sep, + unsigned long app_virt_addr, + unsigned long data_size, + unsigned long *num_pages_ptr, + struct sep_lli_entry_t **lli_array_ptr, + struct page ***page_array_ptr) { int error = 0; /* the the page of the end address of the user space buffer */ @@ -1040,7 +1074,7 @@ static void sep_build_lli_table(struct sep_lli_entry_t *lli_array_ptr, struct se this function goes over the list of the print created tables and prints all the data */ -static void sep_debug_print_lli_tables(struct sep_lli_entry_t *lli_table_ptr, unsigned long num_table_entries, unsigned long table_data_size) +static void sep_debug_print_lli_tables(struct sep_device *sep, struct sep_lli_entry_t *lli_table_ptr, unsigned long num_table_entries, unsigned long table_data_size) { unsigned long table_count; unsigned long entries_count; @@ -1073,7 +1107,7 @@ static void sep_debug_print_lli_tables(struct sep_lli_entry_t *lli_table_ptr, un edbg("SEP Driver:phys table_data_size is %lu num_table_entries is %lu lli_table_ptr is%lu\n", table_data_size, num_table_entries, (unsigned long) lli_table_ptr); if ((unsigned long) lli_table_ptr != 0xffffffff) - lli_table_ptr = (struct sep_lli_entry_t *) sep_shared_area_phys_to_virt((unsigned long) lli_table_ptr); + lli_table_ptr = (struct sep_lli_entry_t *) sep_shared_area_phys_to_virt(sep, (unsigned long) lli_table_ptr); table_count++; } @@ -1085,7 +1119,14 @@ static void sep_debug_print_lli_tables(struct sep_lli_entry_t *lli_table_ptr, un This function prepares only input DMA table for synhronic symmetric operations (HASH) */ -static int sep_prepare_input_dma_table(unsigned long app_virt_addr, unsigned long data_size, unsigned long block_size, unsigned long *lli_table_ptr, unsigned long *num_entries_ptr, unsigned long *table_data_size_ptr, bool isKernelVirtualAddress) +static int sep_prepare_input_dma_table(struct sep_device *sep, + unsigned long app_virt_addr, + unsigned long data_size, + unsigned long block_size, + unsigned long *lli_table_ptr, + unsigned long *num_entries_ptr, + unsigned long *table_data_size_ptr, + bool isKernelVirtualAddress) { /* pointer to the info entry of the table - the last entry */ struct sep_lli_entry_t *info_entry_ptr; @@ -1111,20 +1152,20 @@ static int sep_prepare_input_dma_table(unsigned long app_virt_addr, unsigned lon edbg("SEP Driver:block_size is %lu\n", block_size); /* initialize the pages pointers */ - sep_dev->in_page_array = 0; - sep_dev->in_num_pages = 0; + sep->in_page_array = 0; + sep->in_num_pages = 0; if (data_size == 0) { /* special case - created 2 entries table with zero data */ - in_lli_table_ptr = (struct sep_lli_entry_t *) (sep_dev->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES); - in_lli_table_ptr->physical_address = sep_dev->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; + in_lli_table_ptr = (struct sep_lli_entry_t *) (sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES); + in_lli_table_ptr->physical_address = sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; in_lli_table_ptr->block_size = 0; in_lli_table_ptr++; in_lli_table_ptr->physical_address = 0xFFFFFFFF; in_lli_table_ptr->block_size = 0; - *lli_table_ptr = sep_dev->shared_area_bus + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; + *lli_table_ptr = sep->shared_area_bus + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; *num_entries_ptr = 2; *table_data_size_ptr = 0; @@ -1134,22 +1175,22 @@ static int sep_prepare_input_dma_table(unsigned long app_virt_addr, unsigned lon /* check if the pages are in Kernel Virtual Address layout */ if (isKernelVirtualAddress == true) /* lock the pages of the kernel buffer and translate them to pages */ - result = sep_lock_kernel_pages(app_virt_addr, data_size, &sep_dev->in_num_pages, &lli_array_ptr, &sep_dev->in_page_array); + result = sep_lock_kernel_pages(sep, app_virt_addr, data_size, &sep->in_num_pages, &lli_array_ptr, &sep->in_page_array); else /* lock the pages of the user buffer and translate them to pages */ - result = sep_lock_user_pages(app_virt_addr, data_size, &sep_dev->in_num_pages, &lli_array_ptr, &sep_dev->in_page_array); + result = sep_lock_user_pages(sep, app_virt_addr, data_size, &sep->in_num_pages, &lli_array_ptr, &sep->in_page_array); if (result) return result; - edbg("SEP Driver:output sep_dev->in_num_pages is %lu\n", sep_dev->in_num_pages); + edbg("SEP Driver:output sep->in_num_pages is %lu\n", sep->in_num_pages); current_entry = 0; info_entry_ptr = 0; - sep_lli_entries = sep_dev->in_num_pages; + sep_lli_entries = sep->in_num_pages; /* initiate to point after the message area */ - lli_table_alloc_addr = sep_dev->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; + lli_table_alloc_addr = sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; /* loop till all the entries in in array are not processed */ while (current_entry < sep_lli_entries) { @@ -1171,14 +1212,14 @@ static int sep_prepare_input_dma_table(unsigned long app_virt_addr, unsigned lon if (info_entry_ptr == 0) { /* set the output parameters to physical addresses */ - *lli_table_ptr = sep_shared_area_virt_to_phys((unsigned long) in_lli_table_ptr); + *lli_table_ptr = sep_shared_area_virt_to_phys(sep, (unsigned long) in_lli_table_ptr); *num_entries_ptr = num_entries_in_table; *table_data_size_ptr = table_data_size; edbg("SEP Driver:output lli_table_in_ptr is %08lx\n", *lli_table_ptr); } else { /* update the info entry of the previous in table */ - info_entry_ptr->physical_address = sep_shared_area_virt_to_phys((unsigned long) in_lli_table_ptr); + info_entry_ptr->physical_address = sep_shared_area_virt_to_phys(sep, (unsigned long) in_lli_table_ptr); info_entry_ptr->block_size = ((num_entries_in_table) << 24) | (table_data_size); } @@ -1187,8 +1228,8 @@ static int sep_prepare_input_dma_table(unsigned long app_virt_addr, unsigned lon } /* print input tables */ - sep_debug_print_lli_tables((struct sep_lli_entry_t *) - sep_shared_area_phys_to_virt(*lli_table_ptr), *num_entries_ptr, *table_data_size_ptr); + sep_debug_print_lli_tables(sep, (struct sep_lli_entry_t *) + sep_shared_area_phys_to_virt(sep, *lli_table_ptr), *num_entries_ptr, *table_data_size_ptr); /* the array of the pages */ kfree(lli_array_ptr); @@ -1202,7 +1243,8 @@ end_function: This function creates the input and output dma tables for symmetric operations (AES/DES) according to the block size from LLI arays */ -static int sep_construct_dma_tables_from_lli(struct sep_lli_entry_t *lli_in_array, +static int sep_construct_dma_tables_from_lli(struct sep_device *sep, + struct sep_lli_entry_t *lli_in_array, unsigned long sep_in_lli_entries, struct sep_lli_entry_t *lli_out_array, unsigned long sep_out_lli_entries, @@ -1238,7 +1280,7 @@ static int sep_construct_dma_tables_from_lli(struct sep_lli_entry_t *lli_in_arra dbg("SEP Driver:--------> sep_construct_dma_tables_from_lli start\n"); /* initiate to pint after the message area */ - lli_table_alloc_addr = sep_dev->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; + lli_table_alloc_addr = sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES; current_in_entry = 0; current_out_entry = 0; @@ -1286,9 +1328,9 @@ static int sep_construct_dma_tables_from_lli(struct sep_lli_entry_t *lli_in_arra /* if info entry is null - this is the first table built */ if (info_in_entry_ptr == 0) { /* set the output parameters to physical addresses */ - *lli_table_in_ptr = sep_shared_area_virt_to_phys((unsigned long) in_lli_table_ptr); + *lli_table_in_ptr = sep_shared_area_virt_to_phys(sep, (unsigned long) in_lli_table_ptr); *in_num_entries_ptr = num_entries_in_table; - *lli_table_out_ptr = sep_shared_area_virt_to_phys((unsigned long) out_lli_table_ptr); + *lli_table_out_ptr = sep_shared_area_virt_to_phys(sep, (unsigned long) out_lli_table_ptr); *out_num_entries_ptr = num_entries_out_table; *table_data_size_ptr = table_data_size; @@ -1296,11 +1338,11 @@ static int sep_construct_dma_tables_from_lli(struct sep_lli_entry_t *lli_in_arra edbg("SEP Driver:output lli_table_out_ptr is %08lx\n", *lli_table_out_ptr); } else { /* update the info entry of the previous in table */ - info_in_entry_ptr->physical_address = sep_shared_area_virt_to_phys((unsigned long) in_lli_table_ptr); + info_in_entry_ptr->physical_address = sep_shared_area_virt_to_phys(sep, (unsigned long) in_lli_table_ptr); info_in_entry_ptr->block_size = ((num_entries_in_table) << 24) | (table_data_size); /* update the info entry of the previous in table */ - info_out_entry_ptr->physical_address = sep_shared_area_virt_to_phys((unsigned long) out_lli_table_ptr); + info_out_entry_ptr->physical_address = sep_shared_area_virt_to_phys(sep, (unsigned long) out_lli_table_ptr); info_out_entry_ptr->block_size = ((num_entries_out_table) << 24) | (table_data_size); } @@ -1314,11 +1356,11 @@ static int sep_construct_dma_tables_from_lli(struct sep_lli_entry_t *lli_in_arra } /* print input tables */ - sep_debug_print_lli_tables((struct sep_lli_entry_t *) - sep_shared_area_phys_to_virt(*lli_table_in_ptr), *in_num_entries_ptr, *table_data_size_ptr); + sep_debug_print_lli_tables(sep, (struct sep_lli_entry_t *) + sep_shared_area_phys_to_virt(sep, *lli_table_in_ptr), *in_num_entries_ptr, *table_data_size_ptr); /* print output tables */ - sep_debug_print_lli_tables((struct sep_lli_entry_t *) - sep_shared_area_phys_to_virt(*lli_table_out_ptr), *out_num_entries_ptr, *table_data_size_ptr); + sep_debug_print_lli_tables(sep, (struct sep_lli_entry_t *) + sep_shared_area_phys_to_virt(sep, *lli_table_out_ptr), *out_num_entries_ptr, *table_data_size_ptr); dbg("SEP Driver:<-------- sep_construct_dma_tables_from_lli end\n"); return 0; } @@ -1329,7 +1371,8 @@ static int sep_construct_dma_tables_from_lli(struct sep_lli_entry_t *lli_in_arra symmetric operations (AES, DES). It also checks that each table is of the modular block size */ -static int sep_prepare_input_output_dma_table(unsigned long app_virt_in_addr, +static int sep_prepare_input_output_dma_table(struct sep_device *sep, + unsigned long app_virt_in_addr, unsigned long app_virt_out_addr, unsigned long data_size, unsigned long block_size, @@ -1344,20 +1387,20 @@ static int sep_prepare_input_output_dma_table(unsigned long app_virt_in_addr, dbg("SEP Driver:--------> sep_prepare_input_output_dma_table start\n"); /* initialize the pages pointers */ - sep_dev->in_page_array = 0; - sep_dev->out_page_array = 0; + sep->in_page_array = 0; + sep->out_page_array = 0; /* check if the pages are in Kernel Virtual Address layout */ if (isKernelVirtualAddress == true) { /* lock the pages of the kernel buffer and translate them to pages */ - result = sep_lock_kernel_pages(app_virt_in_addr, data_size, &sep_dev->in_num_pages, &lli_in_array, &sep_dev->in_page_array); + result = sep_lock_kernel_pages(sep, app_virt_in_addr, data_size, &sep->in_num_pages, &lli_in_array, &sep->in_page_array); if (result) { edbg("SEP Driver: sep_lock_kernel_pages for input virtual buffer failed\n"); goto end_function; } } else { /* lock the pages of the user buffer and translate them to pages */ - result = sep_lock_user_pages(app_virt_in_addr, data_size, &sep_dev->in_num_pages, &lli_in_array, &sep_dev->in_page_array); + result = sep_lock_user_pages(sep, app_virt_in_addr, data_size, &sep->in_num_pages, &lli_in_array, &sep->in_page_array); if (result) { edbg("SEP Driver: sep_lock_user_pages for input virtual buffer failed\n"); goto end_function; @@ -1365,25 +1408,25 @@ static int sep_prepare_input_output_dma_table(unsigned long app_virt_in_addr, } if (isKernelVirtualAddress == true) { - result = sep_lock_kernel_pages(app_virt_out_addr, data_size, &sep_dev->out_num_pages, &lli_out_array, &sep_dev->out_page_array); + result = sep_lock_kernel_pages(sep, app_virt_out_addr, data_size, &sep->out_num_pages, &lli_out_array, &sep->out_page_array); if (result) { edbg("SEP Driver: sep_lock_kernel_pages for output virtual buffer failed\n"); goto end_function_with_error1; } } else { - result = sep_lock_user_pages(app_virt_out_addr, data_size, &sep_dev->out_num_pages, &lli_out_array, &sep_dev->out_page_array); + result = sep_lock_user_pages(sep, app_virt_out_addr, data_size, &sep->out_num_pages, &lli_out_array, &sep->out_page_array); if (result) { edbg("SEP Driver: sep_lock_user_pages for output virtual buffer failed\n"); goto end_function_with_error1; } } - edbg("sep_dev->in_num_pages is %lu\n", sep_dev->in_num_pages); - edbg("sep_dev->out_num_pages is %lu\n", sep_dev->out_num_pages); + edbg("sep->in_num_pages is %lu\n", sep->in_num_pages); + edbg("sep->out_num_pages is %lu\n", sep->out_num_pages); edbg("SEP_DRIVER_ENTRIES_PER_TABLE_IN_SEP is %x\n", SEP_DRIVER_ENTRIES_PER_TABLE_IN_SEP); /* call the fucntion that creates table from the lli arrays */ - result = sep_construct_dma_tables_from_lli(lli_in_array, sep_dev->in_num_pages, lli_out_array, sep_dev->out_num_pages, block_size, lli_table_in_ptr, lli_table_out_ptr, in_num_entries_ptr, out_num_entries_ptr, table_data_size_ptr); + result = sep_construct_dma_tables_from_lli(sep, lli_in_array, sep->in_num_pages, lli_out_array, sep->out_num_pages, block_size, lli_table_in_ptr, lli_table_out_ptr, in_num_entries_ptr, out_num_entries_ptr, table_data_size_ptr); if (result) { edbg("SEP Driver: sep_construct_dma_tables_from_lli failed\n"); goto end_function_with_error2; @@ -1407,7 +1450,8 @@ end_function: this function handles tha request for creation of the DMA table for the synchronic symmetric operations (AES,DES) */ -static int sep_create_sync_dma_tables_handler(unsigned long arg) +static int sep_create_sync_dma_tables_handler(struct sep_device *sep, + unsigned long arg) { int error; /* command arguments */ @@ -1427,7 +1471,8 @@ static int sep_create_sync_dma_tables_handler(unsigned long arg) /* check if we need to build only input table or input/output */ if (command_args.app_out_address) /* prepare input and output tables */ - error = sep_prepare_input_output_dma_table(command_args.app_in_address, + error = sep_prepare_input_output_dma_table(sep, + command_args.app_in_address, command_args.app_out_address, command_args.data_in_size, command_args.block_size, @@ -1435,13 +1480,15 @@ static int sep_create_sync_dma_tables_handler(unsigned long arg) &command_args.out_table_address, &command_args.in_table_num_entries, &command_args.out_table_num_entries, &command_args.table_data_size, command_args.isKernelVirtualAddress); else /* prepare input tables */ - error = sep_prepare_input_dma_table(command_args.app_in_address, + error = sep_prepare_input_dma_table(sep, + command_args.app_in_address, command_args.data_in_size, command_args.block_size, &command_args.in_table_address, &command_args.in_table_num_entries, &command_args.table_data_size, command_args.isKernelVirtualAddress); if (error) goto end_function; /* copy to user */ error = copy_to_user((void *) arg, (void *) &command_args, sizeof(struct sep_driver_build_sync_table_t)); + /* FIXME: wrong error returned ! */ end_function: dbg("SEP Driver:<-------- sep_create_sync_dma_tables_handler end\n"); return error; @@ -1450,22 +1497,22 @@ end_function: /* this function handles the request for freeing dma table for synhronic actions */ -static int sep_free_dma_table_data_handler(void) +static int sep_free_dma_table_data_handler(struct sep_device *sep) { dbg("SEP Driver:--------> sep_free_dma_table_data_handler start\n"); /* free input pages array */ - sep_free_dma_pages(sep_dev->in_page_array, sep_dev->in_num_pages, 0); + sep_free_dma_pages(sep->in_page_array, sep->in_num_pages, 0); /* free output pages array if needed */ - if (sep_dev->out_page_array) - sep_free_dma_pages(sep_dev->out_page_array, sep_dev->out_num_pages, 1); + if (sep->out_page_array) + sep_free_dma_pages(sep->out_page_array, sep->out_num_pages, 1); /* reset all the values */ - sep_dev->in_page_array = 0; - sep_dev->out_page_array = 0; - sep_dev->in_num_pages = 0; - sep_dev->out_num_pages = 0; + sep->in_page_array = 0; + sep->out_page_array = 0; + sep->in_num_pages = 0; + sep->out_num_pages = 0; dbg("SEP Driver:<-------- sep_free_dma_table_data_handler end\n"); return 0; } @@ -1473,7 +1520,8 @@ static int sep_free_dma_table_data_handler(void) /* this function find a space for the new flow dma table */ -static int sep_find_free_flow_dma_table_space(unsigned long **table_address_ptr) +static int sep_find_free_flow_dma_table_space(struct sep_device *sep, + unsigned long **table_address_ptr) { int error = 0; /* pointer to the id field of the flow dma table */ @@ -1484,7 +1532,7 @@ static int sep_find_free_flow_dma_table_space(unsigned long **table_address_ptr) unsigned long table_size_in_words; /* find the start address of the flow DMA table area */ - flow_dma_area_start_addr = sep_dev->shared_area + SEP_DRIVER_FLOW_DMA_TABLES_AREA_OFFSET_IN_BYTES; + flow_dma_area_start_addr = sep->shared_area + SEP_DRIVER_FLOW_DMA_TABLES_AREA_OFFSET_IN_BYTES; /* set end address of the flow table area */ flow_dma_area_end_addr = flow_dma_area_start_addr + SEP_DRIVER_FLOW_DMA_TABLES_AREA_SIZE_IN_BYTES; @@ -1508,13 +1556,17 @@ static int sep_find_free_flow_dma_table_space(unsigned long **table_address_ptr) return error; } - - /* This function creates one DMA table for flow and returns its data, and pointer to its info entry */ -static int sep_prepare_one_flow_dma_table(unsigned long virt_buff_addr, unsigned long virt_buff_size, struct sep_lli_entry_t *table_data, struct sep_lli_entry_t **info_entry_ptr, struct sep_flow_context_t *flow_data_ptr, bool isKernelVirtualAddress) +static int sep_prepare_one_flow_dma_table(struct sep_device *sep, + unsigned long virt_buff_addr, + unsigned long virt_buff_size, + struct sep_lli_entry_t *table_data, + struct sep_lli_entry_t **info_entry_ptr, + struct sep_flow_context_t *flow_data_ptr, + bool isKernelVirtualAddress) { int error; /* the range in pages */ @@ -1529,17 +1581,17 @@ static int sep_prepare_one_flow_dma_table(unsigned long virt_buff_addr, unsigned unsigned long entry_count; /* find the space for the new table */ - error = sep_find_free_flow_dma_table_space(&start_dma_table_ptr); + error = sep_find_free_flow_dma_table_space(sep, &start_dma_table_ptr); if (error) goto end_function; /* check if the pages are in Kernel Virtual Address layout */ if (isKernelVirtualAddress == true) /* lock kernel buffer in the memory */ - error = sep_lock_kernel_pages(virt_buff_addr, virt_buff_size, &lli_array_size, &lli_array, &page_array_ptr); + error = sep_lock_kernel_pages(sep, virt_buff_addr, virt_buff_size, &lli_array_size, &lli_array, &page_array_ptr); else /* lock user buffer in the memory */ - error = sep_lock_user_pages(virt_buff_addr, virt_buff_size, &lli_array_size, &lli_array, &page_array_ptr); + error = sep_lock_user_pages(sep, virt_buff_addr, virt_buff_size, &lli_array_size, &lli_array, &page_array_ptr); if (error) goto end_function; @@ -1594,8 +1646,9 @@ end_function: This function creates a list of tables for flow and returns the data for the first and last tables of the list */ -static int sep_prepare_flow_dma_tables(unsigned long num_virtual_buffers, - unsigned long first_buff_addr, struct sep_flow_context_t *flow_data_ptr, struct sep_lli_entry_t *first_table_data_ptr, struct sep_lli_entry_t *last_table_data_ptr, bool isKernelVirtualAddress) +static int sep_prepare_flow_dma_tables(struct sep_device *sep, + unsigned long num_virtual_buffers, + unsigned long first_buff_addr, struct sep_flow_context_t *flow_data_ptr, struct sep_lli_entry_t *first_table_data_ptr, struct sep_lli_entry_t *last_table_data_ptr, bool isKernelVirtualAddress) { int error; unsigned long virt_buff_addr; @@ -1630,7 +1683,7 @@ static int sep_prepare_flow_dma_tables(unsigned long num_virtual_buffers, first_buff_addr++; /* now prepare the one flow LLI table from the data */ - error = sep_prepare_one_flow_dma_table(virt_buff_addr, virt_buff_size, &table_data, &info_entry_ptr, flow_data_ptr, isKernelVirtualAddress); + error = sep_prepare_one_flow_dma_table(sep, virt_buff_addr, virt_buff_size, &table_data, &info_entry_ptr, flow_data_ptr, isKernelVirtualAddress); if (error) goto end_function; @@ -1703,8 +1756,12 @@ static void sep_deallocated_flow_tables(struct sep_lli_entry_t *first_table_ptr) /* This function returns pointer to the flow data structure that contains the given id + + FIXME: Daft API */ -static int sep_find_flow_context(unsigned long flow_id, struct sep_flow_context_t **flow_data_ptr) +static int sep_find_flow_context(struct sep_device *sep, + unsigned long flow_id, + struct sep_flow_context_t **flow_data_ptr) { unsigned long count; int error = 0; @@ -1715,8 +1772,8 @@ static int sep_find_flow_context(unsigned long flow_id, struct sep_flow_context_ when 2 flows are with default flag */ for (count = 0; count < SEP_DRIVER_NUM_FLOWS; count++) { - if (sep_dev->flows[count].flow_id == flow_id) { - *flow_data_ptr = &sep_dev->flows[count]; + if (sep->flows[count].flow_id == flow_id) { + *flow_data_ptr = &sep->flows[count]; break; } } @@ -1732,7 +1789,8 @@ static int sep_find_flow_context(unsigned long flow_id, struct sep_flow_context_ /* this function handles the request to create the DMA tables for flow */ -static int sep_create_flow_dma_tables_handler(unsigned long arg) +static int sep_create_flow_dma_tables_handler(struct sep_device *sep, + unsigned long arg) { int error; struct sep_driver_build_flow_table_t command_args; @@ -1752,7 +1810,7 @@ static int sep_create_flow_dma_tables_handler(unsigned long arg) first_table_data.physical_address = 0xffffffff; /* find the free structure for flow data */ - error = sep_find_flow_context(SEP_FREE_FLOW_ID, &flow_context_ptr); + error = sep_find_flow_context(sep, SEP_FREE_FLOW_ID, &flow_context_ptr); if (error) goto end_function; @@ -1761,7 +1819,7 @@ static int sep_create_flow_dma_tables_handler(unsigned long arg) goto end_function; /* create flow tables */ - error = sep_prepare_flow_dma_tables(command_args.num_virtual_buffers, command_args.virt_buff_data_addr, flow_context_ptr, &first_table_data, &last_table_data, command_args.isKernelVirtualAddress); + error = sep_prepare_flow_dma_tables(sep, command_args.num_virtual_buffers, command_args.virt_buff_data_addr, flow_context_ptr, &first_table_data, &last_table_data, command_args.isKernelVirtualAddress); if (error) goto end_function_with_error; @@ -1800,9 +1858,9 @@ end_function: } /* - this functio nhandles add tables to flow + this function handles add tables to flow */ -static int sep_add_flow_tables_handler(unsigned long arg) +static int sep_add_flow_tables_handler(struct sep_device *sep, unsigned long arg) { int error; unsigned long num_entries; @@ -1823,12 +1881,12 @@ static int sep_add_flow_tables_handler(unsigned long arg) goto end_function; /* find the flow structure for the flow id */ - error = sep_find_flow_context(command_args.flow_id, &flow_context_ptr); + error = sep_find_flow_context(sep, command_args.flow_id, &flow_context_ptr); if (error) goto end_function; /* prepare the flow dma tables */ - error = sep_prepare_flow_dma_tables(command_args.num_virtual_buffers, command_args.virt_buff_data_addr, flow_context_ptr, &first_table_data, &last_table_data, command_args.isKernelVirtualAddress); + error = sep_prepare_flow_dma_tables(sep, command_args.num_virtual_buffers, command_args.virt_buff_data_addr, flow_context_ptr, &first_table_data, &last_table_data, command_args.isKernelVirtualAddress); if (error) goto end_function_with_error; @@ -1902,7 +1960,7 @@ end_function: /* this function add the flow add message to the specific flow */ -static int sep_add_flow_tables_message_handler(unsigned long arg) +static int sep_add_flow_tables_message_handler(struct sep_device *sep, unsigned long arg) { int error; struct sep_driver_add_message_t command_args; @@ -1921,7 +1979,7 @@ static int sep_add_flow_tables_message_handler(unsigned long arg) } /* find the flow context */ - error = sep_find_flow_context(command_args.flow_id, &flow_context_ptr); + error = sep_find_flow_context(sep, command_args.flow_id, &flow_context_ptr); if (error) goto end_function; @@ -1937,7 +1995,7 @@ end_function: /* this function returns the physical and virtual addresses of the static pool */ -static int sep_get_static_pool_addr_handler(unsigned long arg) +static int sep_get_static_pool_addr_handler(struct sep_device *sep, unsigned long arg) { int error; struct sep_driver_static_pool_addr_t command_args; @@ -1945,8 +2003,8 @@ static int sep_get_static_pool_addr_handler(unsigned long arg) dbg("SEP Driver:--------> sep_get_static_pool_addr_handler start\n"); /*prepare the output parameters in the struct */ - command_args.physical_static_address = sep_dev->shared_area_bus + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES; - command_args.virtual_static_address = sep_dev->shared_area + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES; + command_args.physical_static_address = sep->shared_area_bus + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES; + command_args.virtual_static_address = sep->shared_area + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES; edbg("SEP Driver:physical_static_address is %08lx, virtual_static_address %08lx\n", command_args.physical_static_address, command_args.virtual_static_address); @@ -1960,7 +2018,7 @@ static int sep_get_static_pool_addr_handler(unsigned long arg) this address gets the offset of the physical address from the start of the mapped area */ -static int sep_get_physical_mapped_offset_handler(unsigned long arg) +static int sep_get_physical_mapped_offset_handler(struct sep_device *sep, unsigned long arg) { int error; struct sep_driver_get_mapped_offset_t command_args; @@ -1971,13 +2029,14 @@ static int sep_get_physical_mapped_offset_handler(unsigned long arg) if (error) goto end_function; - if (command_args.physical_address < sep_dev->shared_area_bus) { + if (command_args.physical_address < sep->shared_area_bus) { + /* FIXME */ error = -ENOTTY; goto end_function; } /*prepare the output parameters in the struct */ - command_args.offset = command_args.physical_address - sep_dev->shared_area_bus; + command_args.offset = command_args.physical_address - sep->shared_area_bus; edbg("SEP Driver:physical_address is %08lx, offset is %lu\n", command_args.physical_address, command_args.offset); @@ -1992,7 +2051,7 @@ end_function: /* ? */ -static int sep_start_handler(void) +static int sep_start_handler(struct sep_device *sep) { unsigned long reg_val; unsigned long error = 0; @@ -2001,13 +2060,13 @@ static int sep_start_handler(void) /* wait in polling for message from SEP */ do - reg_val = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR3_REG_ADDR); + reg_val = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR3_REG_ADDR); while (!reg_val); /* check the value */ if (reg_val == 0x1) - /* fatal error - read erro status from GPRO */ - error = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR); + /* fatal error - read error status from GPRO */ + error = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR0_REG_ADDR); dbg("SEP Driver:<-------- sep_start_handler end\n"); return error; } @@ -2015,7 +2074,7 @@ static int sep_start_handler(void) /* this function handles the request for SEP initialization */ -static int sep_init_handler(unsigned long arg) +static int sep_init_handler(struct sep_device *sep, unsigned long arg) { unsigned long message_word; unsigned long *message_ptr; @@ -2042,22 +2101,22 @@ static int sep_init_handler(unsigned long arg) message_ptr = (unsigned long *) command_args.message_addr; /* set the base address of the SRAM */ - sep_write_reg(sep_dev, HW_SRAM_ADDR_REG_ADDR, HW_CC_SRAM_BASE_ADDRESS); + sep_write_reg(sep, HW_SRAM_ADDR_REG_ADDR, HW_CC_SRAM_BASE_ADDRESS); for (counter = 0; counter < command_args.message_size_in_words; counter++, message_ptr++) { get_user(message_word, message_ptr); /* write data to SRAM */ - sep_write_reg(sep_dev, HW_SRAM_DATA_REG_ADDR, message_word); + sep_write_reg(sep, HW_SRAM_DATA_REG_ADDR, message_word); edbg("SEP Driver:message_word is %lu\n", message_word); /* wait for write complete */ - sep_wait_sram_write(sep_dev); + sep_wait_sram_write(sep); } dbg("SEP Driver:--------> sep_init_handler - finished getting messages from user space\n"); /* signal SEP */ - sep_write_reg(sep_dev, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x1); + sep_write_reg(sep, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x1); do - reg_val = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR3_REG_ADDR); + reg_val = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR3_REG_ADDR); while (!(reg_val & 0xFFFFFFFD)); dbg("SEP Driver:--------> sep_init_handler - finished waiting for reg_val & 0xFFFFFFFD \n"); @@ -2066,11 +2125,11 @@ static int sep_init_handler(unsigned long arg) if (reg_val == 0x1) { edbg("SEP Driver:init failed\n"); - error = sep_read_reg(sep_dev, 0x8060); + error = sep_read_reg(sep, 0x8060); edbg("SEP Driver:sw monitor is %lu\n", error); /* fatal error - read erro status from GPRO */ - error = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR0_REG_ADDR); + error = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR0_REG_ADDR); edbg("SEP Driver:error is %lu\n", error); } end_function: @@ -2082,7 +2141,8 @@ end_function: /* this function handles the request cache and resident reallocation */ -static int sep_realloc_cache_resident_handler(unsigned long arg) +static int sep_realloc_cache_resident_handler(struct sep_device *sep, + unsigned long arg) { int error; unsigned long phys_cache_address; @@ -2095,11 +2155,11 @@ static int sep_realloc_cache_resident_handler(unsigned long arg) goto end_function; /* copy cache and resident to the their intended locations */ - error = sep_copy_cache_resident_to_area(command_args.cache_addr, command_args.cache_size_in_bytes, command_args.resident_addr, command_args.resident_size_in_bytes, &phys_cache_address, &phys_resident_address); + error = sep_copy_cache_resident_to_area(sep, command_args.cache_addr, command_args.cache_size_in_bytes, command_args.resident_addr, command_args.resident_size_in_bytes, &phys_cache_address, &phys_resident_address); if (error) goto end_function; - command_args.new_base_addr = sep_dev->shared_area_bus; + command_args.new_base_addr = sep->shared_area_bus; /* find the new base address according to the lowest address between cache, resident and shared area */ @@ -2113,7 +2173,7 @@ static int sep_realloc_cache_resident_handler(unsigned long arg) command_args.new_resident_addr = phys_resident_address; /* set the new shared area */ - command_args.new_shared_area_addr = sep_dev->shared_area_bus; + command_args.new_shared_area_addr = sep->shared_area_bus; edbg("SEP Driver:command_args.new_shared_area is %08lx\n", command_args.new_shared_area_addr); edbg("SEP Driver:command_args.new_base_addr is %08lx\n", command_args.new_base_addr); @@ -2129,12 +2189,12 @@ end_function: /* this function handles the request for get time */ -static int sep_get_time_handler(unsigned long arg) +static int sep_get_time_handler(struct sep_device *sep, unsigned long arg) { int error; struct sep_driver_get_time_t command_args; - error = sep_set_time(&command_args.time_physical_address, &command_args.time_value); + error = sep_set_time(sep, &command_args.time_physical_address, &command_args.time_value); if (error == 0) error = copy_to_user((void __user *)arg, &command_args, sizeof(struct sep_driver_get_time_t)); @@ -2145,16 +2205,16 @@ static int sep_get_time_handler(unsigned long arg) /* This API handles the end transaction request */ -static int sep_end_transaction_handler(unsigned long arg) +static int sep_end_transaction_handler(struct sep_device *sep, unsigned long arg) { dbg("SEP Driver:--------> sep_end_transaction_handler start\n"); #if 0 /*!SEP_DRIVER_POLLING_MODE */ /* close IMR */ - sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, 0x7FFF); + sep_write_reg(sep, HW_HOST_IMR_REG_ADDR, 0x7FFF); /* release IRQ line */ - free_irq(SEP_DIRVER_IRQ_NUM, &sep_dev->reg_addr); + free_irq(SEP_DIRVER_IRQ_NUM, sep); /* lock the sep mutex */ mutex_unlock(&sep_mutex); @@ -2169,7 +2229,7 @@ static int sep_end_transaction_handler(unsigned long arg) /* This function handler the set flow id command */ -static int sep_set_flow_id_handler(unsigned long arg) +static int sep_set_flow_id_handler(struct sep_device *sep, unsigned long arg) { int error; unsigned long flow_id; @@ -2183,7 +2243,7 @@ static int sep_set_flow_id_handler(unsigned long arg) /* find the flow data structure that was just used for creating new flow - its id should be default */ - error = sep_find_flow_context(SEP_TEMP_FLOW_ID, &flow_data_ptr); + error = sep_find_flow_context(sep, SEP_TEMP_FLOW_ID, &flow_data_ptr); if (error) goto end_function; @@ -2202,6 +2262,7 @@ end_function: static int sep_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { int error = 0; + struct sep_device *sep = filp->private_data; dbg("------------>SEP Driver: ioctl start\n"); @@ -2214,72 +2275,72 @@ static int sep_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, u switch (cmd) { case SEP_IOCSENDSEPCOMMAND: /* send command to SEP */ - sep_send_command_handler(); + sep_send_command_handler(sep); edbg("SEP Driver: after sep_send_command_handler\n"); break; case SEP_IOCSENDSEPRPLYCOMMAND: /* send reply command to SEP */ - sep_send_reply_command_handler(); + sep_send_reply_command_handler(sep); break; case SEP_IOCALLOCDATAPOLL: /* allocate data pool */ - error = sep_allocate_data_pool_memory_handler(arg); + error = sep_allocate_data_pool_memory_handler(sep, arg); break; case SEP_IOCWRITEDATAPOLL: /* write data into memory pool */ - error = sep_write_into_data_pool_handler(arg); + error = sep_write_into_data_pool_handler(sep, arg); break; case SEP_IOCREADDATAPOLL: /* read data from data pool into application memory */ - error = sep_read_from_data_pool_handler(arg); + error = sep_read_from_data_pool_handler(sep, arg); break; case SEP_IOCCREATESYMDMATABLE: /* create dma table for synhronic operation */ - error = sep_create_sync_dma_tables_handler(arg); + error = sep_create_sync_dma_tables_handler(sep, arg); break; case SEP_IOCCREATEFLOWDMATABLE: /* create flow dma tables */ - error = sep_create_flow_dma_tables_handler(arg); + error = sep_create_flow_dma_tables_handler(sep, arg); break; case SEP_IOCFREEDMATABLEDATA: /* free the pages */ - error = sep_free_dma_table_data_handler(); + error = sep_free_dma_table_data_handler(sep); break; case SEP_IOCSETFLOWID: /* set flow id */ - error = sep_set_flow_id_handler(arg); + error = sep_set_flow_id_handler(sep, arg); break; case SEP_IOCADDFLOWTABLE: /* add tables to the dynamic flow */ - error = sep_add_flow_tables_handler(arg); + error = sep_add_flow_tables_handler(sep, arg); break; case SEP_IOCADDFLOWMESSAGE: /* add message of add tables to flow */ - error = sep_add_flow_tables_message_handler(arg); + error = sep_add_flow_tables_message_handler(sep, arg); break; case SEP_IOCSEPSTART: /* start command to sep */ - error = sep_start_handler(); + error = sep_start_handler(sep); break; case SEP_IOCSEPINIT: /* init command to sep */ - error = sep_init_handler(arg); + error = sep_init_handler(sep, arg); break; case SEP_IOCGETSTATICPOOLADDR: /* get the physical and virtual addresses of the static pool */ - error = sep_get_static_pool_addr_handler(arg); + error = sep_get_static_pool_addr_handler(sep, arg); break; case SEP_IOCENDTRANSACTION: - error = sep_end_transaction_handler(arg); + error = sep_end_transaction_handler(sep, arg); break; case SEP_IOCREALLOCCACHERES: - error = sep_realloc_cache_resident_handler(arg); + error = sep_realloc_cache_resident_handler(sep, arg); break; case SEP_IOCGETMAPPEDADDROFFSET: - error = sep_get_physical_mapped_offset_handler(arg); + error = sep_get_physical_mapped_offset_handler(sep, arg); break; case SEP_IOCGETIME: - error = sep_get_time_handler(arg); + error = sep_get_time_handler(sep, arg); break; default: error = -ENOTTY; @@ -2316,9 +2377,9 @@ static void sep_flow_done_handler(struct work_struct *work) flag may be checked */ if (flow_data_ptr->input_tables_flag) { /* copy the message to the shared RAM and signal SEP */ - memcpy((void *) flow_data_ptr->message, (void *) sep_dev->shared_area, flow_data_ptr->message_size_in_bytes); + memcpy((void *) flow_data_ptr->message, (void *) sep->shared_area, flow_data_ptr->message_size_in_bytes); - sep_write_reg(sep_dev, HW_HOST_HOST_SEP_GPR2_REG_ADDR, 0x2); + sep_write_reg(sep, HW_HOST_HOST_SEP_GPR2_REG_ADDR, 0x2); } mutex_unlock(&sep_mutex); } @@ -2332,33 +2393,34 @@ static irqreturn_t sep_inthandler(int irq, void *dev_id) unsigned long reg_val; unsigned long flow_id; struct sep_flow_context_t *flow_context_ptr; + struct sep_device *sep = dev_id; int_error = IRQ_HANDLED; /* read the IRR register to check if this is SEP interrupt */ - reg_val = sep_read_reg(sep_dev, HW_HOST_IRR_REG_ADDR); + reg_val = sep_read_reg(sep, HW_HOST_IRR_REG_ADDR); edbg("SEP Interrupt - reg is %08lx\n", reg_val); /* check if this is the flow interrupt */ if (0 /*reg_val & (0x1 << 11) */ ) { /* read GPRO to find out the which flow is done */ - flow_id = sep_read_reg(sep_dev, HW_HOST_IRR_REG_ADDR); + flow_id = sep_read_reg(sep, HW_HOST_IRR_REG_ADDR); /* find the contex of the flow */ - error = sep_find_flow_context(flow_id >> 28, &flow_context_ptr); + error = sep_find_flow_context(sep, flow_id >> 28, &flow_context_ptr); if (error) goto end_function_with_error; INIT_WORK(&flow_context_ptr->flow_wq, sep_flow_done_handler); /* queue the work */ - queue_work(sep_dev->flow_wq, &flow_context_ptr->flow_wq); + queue_work(sep->flow_wq, &flow_context_ptr->flow_wq); } else { /* check if this is reply interrupt from SEP */ if (reg_val & (0x1 << 13)) { /* update the counter of reply messages */ - sep_dev->reply_ct++; + sep->reply_ct++; /* wake up the waiting process */ wake_up(&sep_event); @@ -2369,7 +2431,7 @@ static irqreturn_t sep_inthandler(int irq, void *dev_id) } end_function_with_error: /* clear the interrupt */ - sep_write_reg(sep_dev, HW_HOST_ICR_REG_ADDR, reg_val); + sep_write_reg(sep, HW_HOST_ICR_REG_ADDR, reg_val); end_function: return int_error; } @@ -2380,52 +2442,59 @@ end_function: -static void sep_wait_busy(struct sep_device *dev) +static void sep_wait_busy(struct sep_device *sep) { u32 reg; do { - reg = sep_read_reg(sep_dev, HW_HOST_SEP_BUSY_REG_ADDR); + reg = sep_read_reg(sep, HW_HOST_SEP_BUSY_REG_ADDR); } while (reg); } /* PATCH for configuring the DMA to single burst instead of multi-burst */ -static void sep_configure_dma_burst(void) +static void sep_configure_dma_burst(struct sep_device *sep) { #define HW_AHB_RD_WR_BURSTS_REG_ADDR 0x0E10UL dbg("SEP Driver:<-------- sep_configure_dma_burst start \n"); /* request access to registers from SEP */ - sep_write_reg(sep_dev, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x2); + sep_write_reg(sep, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x2); dbg("SEP Driver:<-------- sep_configure_dma_burst finished request access to registers from SEP (write reg) \n"); - sep_wait_busy(sep_dev); + sep_wait_busy(sep); dbg("SEP Driver:<-------- sep_configure_dma_burst finished request access to registers from SEP (while(revVal) wait loop) \n"); /* set the DMA burst register to single burst */ - sep_write_reg(sep_dev, HW_AHB_RD_WR_BURSTS_REG_ADDR, 0x0UL); + sep_write_reg(sep, HW_AHB_RD_WR_BURSTS_REG_ADDR, 0x0UL); /* release the sep busy */ - sep_write_reg(sep_dev, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x0UL); - sep_wait_busy(sep_dev); + sep_write_reg(sep, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x0UL); + sep_wait_busy(sep); dbg("SEP Driver:<-------- sep_configure_dma_burst done \n"); } /* - function that is activaed on the succesfull probe of the SEP device + Function that is activaed on the succesful probe of the SEP device */ static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { int error = 0; + struct sep_device *sep; + int counter; + int size; /* size of memory for allocation */ edbg("Sep pci probe starting\n"); + if (sep_dev != NULL) { + dev_warn(&pdev->dev, "only one SEP supported.\n"); + return -EBUSY; + } /* enable the device */ error = pci_enable_device(pdev); @@ -2435,78 +2504,143 @@ static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id } /* set the pci dev pointer */ - sep_dev->pdev = pdev; + sep_dev = &sep_instance; + sep = &sep_instance; + + edbg("sep->shared_area = %lx\n", (unsigned long) &sep->shared_area); + /* transaction counter that coordinates the transactions between SEP + and HOST */ + sep->send_ct = 0; + /* counter for the messages from sep */ + sep->reply_ct = 0; + /* counter for the number of bytes allocated in the pool + for the current transaction */ + sep->data_pool_bytes_allocated = 0; + + /* calculate the total size for allocation */ + size = SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES + + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_SIZE_IN_BYTES + SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES + SEP_DRIVER_FLOW_DMA_TABLES_AREA_SIZE_IN_BYTES + SEP_DRIVER_STATIC_AREA_SIZE_IN_BYTES + SEP_DRIVER_SYSTEM_DATA_MEMORY_SIZE_IN_BYTES; + + /* allocate the shared area */ + if (sep_map_and_alloc_shared_area(sep, size, &sep->shared_area, &sep->shared_area_bus)) { + error = -ENOMEM; + /* allocation failed */ + goto end_function_error; + } + /* now set the memory regions */ + sep->message_shared_area_addr = sep->shared_area; + + edbg("SEP Driver: sep->message_shared_area_addr is %08lx\n", sep->message_shared_area_addr); + +#if (SEP_DRIVER_RECONFIG_MESSAGE_AREA == 1) + /* send the new SHARED MESSAGE AREA to the SEP */ + sep_write_reg(sep, HW_HOST_HOST_SEP_GPR1_REG_ADDR, sep->shared_area_bus); + + /* poll for SEP response */ + retVal = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR1_REG_ADDR); + while (retVal != 0xffffffff && retVal != sep->shared_area_bus) + retVal = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR1_REG_ADDR); + + /* check the return value (register) */ + if (retVal != sep->shared_area_bus) { + error = -ENOMEM; + goto end_function_deallocate_sep_shared_area; + } +#endif + /* init the flow contextes */ + for (counter = 0; counter < SEP_DRIVER_NUM_FLOWS; counter++) + sep->flows[counter].flow_id = SEP_FREE_FLOW_ID; + + sep->flow_wq = create_singlethread_workqueue("sepflowwq"); + if (sep->flow_wq == NULL) { + error = -ENOMEM; + edbg("sep_driver:flow queue creation failed\n"); + goto end_function_deallocate_sep_shared_area; + } + edbg("SEP Driver: create flow workqueue \n"); + /* load the rom code */ + sep_load_rom_code(sep); + + sep->pdev = pci_dev_get(pdev); /* get the io memory start address */ - sep_dev->io_bus = pci_resource_start(pdev, 0); - if (!sep_dev->io_bus) { + sep->io_bus = pci_resource_start(pdev, 0); + if (!sep->io_bus) { edbg("SEP Driver error pci resource start\n"); - goto end_function; + goto end_function_deallocate_sep_shared_area; } /* get the io memory end address */ - sep_dev->io_end_bus = pci_resource_end(pdev, 0); - if (!sep_dev->io_end_bus) { + sep->io_end_bus = pci_resource_end(pdev, 0); + if (!sep->io_end_bus) { edbg("SEP Driver error pci resource end\n"); - goto end_function; + goto end_function_deallocate_sep_shared_area; } - sep_dev->io_memory_size = sep_dev->io_end_bus - sep_dev->io_bus + 1; + sep->io_memory_size = sep->io_end_bus - sep->io_bus + 1; - edbg("SEP Driver:io_bus is %08lx\n", sep_dev->io_bus); + edbg("SEP Driver:io_bus is %08lx\n", sep->io_bus); - edbg("SEP Driver:io_memory_end_phyaical_address is %08lx\n", sep_dev->io_end_bus); + edbg("SEP Driver:io_memory_end_phyaical_address is %08lx\n", sep->io_end_bus); - edbg("SEP Driver:io_memory_size is %08lx\n", sep_dev->io_memory_size); + edbg("SEP Driver:io_memory_size is %08lx\n", sep->io_memory_size); - sep_dev->io_addr = ioremap_nocache(sep_dev->io_bus, sep_dev->io_memory_size); - if (!sep_dev->io_addr) { + sep->io_addr = ioremap_nocache(sep->io_bus, sep->io_memory_size); + if (!sep->io_addr) { edbg("SEP Driver error ioremap of io memory\n"); - goto end_function; + goto end_function_deallocate_sep_shared_area; } - edbg("SEP Driver:io_addr is %p\n", sep_dev->io_addr); - - sep_dev->reg_addr = (void __iomem *) sep_dev->io_addr; + edbg("SEP Driver:io_addr is %p\n", sep->io_addr); + sep->reg_addr = (void __iomem *) sep->io_addr; /* set up system base address and shared memory location */ - sep_dev->rar_addr = kmalloc(2 * SEP_RAR_IO_MEM_REGION_SIZE, GFP_KERNEL); + sep->rar_addr = kmalloc(2 * SEP_RAR_IO_MEM_REGION_SIZE, GFP_KERNEL); - if (!sep_dev->rar_addr) { + if (!sep->rar_addr) { edbg("SEP Driver:cant kmalloc rar\n"); - goto end_function; + goto end_function_uniomap; } /* FIXME */ - sep_dev->rar_bus = __pa(sep_dev->rar_addr); + sep->rar_bus = __pa(sep->rar_addr); - edbg("SEP Driver:rar_physical is %08lx\n", sep_dev->rar_bus); - edbg("SEP Driver:rar_virtual is %p\n", sep_dev->rar_addr); + edbg("SEP Driver:rar_physical is %08lx\n", sep->rar_bus); + edbg("SEP Driver:rar_virtual is %p\n", sep->rar_addr); #if !SEP_DRIVER_POLLING_MODE edbg("SEP Driver: about to write IMR and ICR REG_ADDR\n"); /* clear ICR register */ - sep_write_reg(sep_dev, HW_HOST_ICR_REG_ADDR, 0xFFFFFFFF); + sep_write_reg(sep, HW_HOST_ICR_REG_ADDR, 0xFFFFFFFF); /* set the IMR register - open only GPR 2 */ - sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13))); + sep_write_reg(sep, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13))); edbg("SEP Driver: about to call request_irq\n"); /* get the interrupt line */ - error = request_irq(pdev->irq, sep_inthandler, IRQF_SHARED, "sep_driver", &sep_dev->reg_addr); + error = request_irq(pdev->irq, sep_inthandler, IRQF_SHARED, "sep_driver", sep); if (error) - goto end_function; + goto end_function_free_res; goto end_function; edbg("SEP Driver: about to write IMR REG_ADDR"); /* set the IMR register - open only GPR 2 */ - sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13))); + sep_write_reg(sep, HW_HOST_IMR_REG_ADDR, (~(0x1 << 13))); +end_function_free_res: + kfree(sep->rar_addr); #endif /* SEP_DRIVER_POLLING_MODE */ +end_function_uniomap: + iounmap(sep->io_addr); +end_function_deallocate_sep_shared_area: + /* de-allocate shared area */ + sep_unmap_and_free_shared_area(size, sep->shared_area, sep->shared_area_bus); +end_function_error: + sep_dev = NULL; end_function: return error; } @@ -2523,6 +2657,7 @@ static struct pci_driver sep_pci_driver = { .name = "sep_sec_driver", .id_table = sep_pci_id_tbl, .probe = sep_probe + /* FIXME: remove handler */ }; /* major and minor device numbers */ @@ -2583,90 +2718,25 @@ end_function: static int __init sep_init(void) { int ret_val = 0; - int counter; - int size; /* size of memory for allocation */ - dbg("SEP Driver:-------->Init start\n"); - edbg("sep->shared_area = %lx\n", (unsigned long) &sep_dev->shared_area); - - /* transaction counter that coordinates the transactions between SEP - and HOST */ - sep_dev->send_ct = 0; - - /* counter for the messages from sep */ - sep_dev->reply_ct = 0; - - /* counter for the number of bytes allocated in the pool - for the current transaction */ - sep_dev->data_pool_bytes_allocated = 0; - /* FIXME: Probe can occur before we are ready to survive a probe */ ret_val = pci_register_driver(&sep_pci_driver); if (ret_val) { edbg("sep_driver:sep_driver_to_device failed, ret_val is %d\n", ret_val); goto end_function_unregister_from_fs; } - /* calculate the total size for allocation */ - size = SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES + - SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_SIZE_IN_BYTES + SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES + SEP_DRIVER_FLOW_DMA_TABLES_AREA_SIZE_IN_BYTES + SEP_DRIVER_STATIC_AREA_SIZE_IN_BYTES + SEP_DRIVER_SYSTEM_DATA_MEMORY_SIZE_IN_BYTES; - - /* allocate the shared area */ - if (sep_map_and_alloc_shared_area(size, &sep_dev->shared_area, &sep_dev->shared_area_bus)) { - ret_val = -ENOMEM; - /* allocation failed */ - goto end_function_unmap_io_memory; - } - /* now set the memory regions */ - sep_dev->message_shared_area_addr = sep_dev->shared_area; - - edbg("SEP Driver: sep_dev->message_shared_area_addr is %08lx\n", sep_dev->message_shared_area_addr); - -#if (SEP_DRIVER_RECONFIG_MESSAGE_AREA == 1) - /* send the new SHARED MESSAGE AREA to the SEP */ - sep_write_reg(sep_dev, HW_HOST_HOST_SEP_GPR1_REG_ADDR, sep_dev->shared_area_bus); - - /* poll for SEP response */ - retVal = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR1_REG_ADDR); - while (retVal != 0xffffffff && retVal != sep_dev->shared_area_bus) - retVal = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR1_REG_ADDR); - - /* check the return value (register) */ - if (retVal != sep_dev->shared_area_bus) { - ret_val = -ENOMEM; - goto end_function_deallocate_message_area; - } -#endif - /* init the flow contextes */ - for (counter = 0; counter < SEP_DRIVER_NUM_FLOWS; counter++) - sep_dev->flows[counter].flow_id = SEP_FREE_FLOW_ID; - - sep_dev->flow_wq = create_singlethread_workqueue("sepflowwq"); - if (sep_dev->flow_wq == NULL) { - ret_val = -ENOMEM; - edbg("sep_driver:flow queue creation failed\n"); - goto end_function_deallocate_sep_shared_area; - } - edbg("SEP Driver: create flow workqueue \n"); - /* register driver to fs */ ret_val = sep_register_driver_to_fs(); if (ret_val) - goto end_function_deallocate_sep_shared_area; - /* load the rom code */ - sep_load_rom_code(); + goto end_function_unregister_pci; goto end_function; +end_function_unregister_pci: + pci_unregister_driver(&sep_pci_driver); end_function_unregister_from_fs: /* unregister from fs */ cdev_del(&sep_cdev); /* unregister dev numbers */ unregister_chrdev_region(sep_devno, 1); -end_function_deallocate_sep_shared_area: - /* de-allocate shared area */ - sep_unmap_and_free_shared_area(size, sep_dev->shared_area, sep_dev->shared_area_bus); -end_function_unmap_io_memory: - iounmap((void *) sep_dev->reg_addr); - /* release io memory region */ - release_mem_region(SEP_IO_MEM_REGION_START_ADDRESS, SEP_IO_MEM_REGION_SIZE); end_function: dbg("SEP Driver:<-------- Init end\n"); return ret_val; @@ -2689,13 +2759,14 @@ static void __exit sep_exit(void) /* calculate the total size for de-allocation */ size = SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_SIZE_IN_BYTES + SEP_DRIVER_DATA_POOL_SHARED_AREA_SIZE_IN_BYTES + SEP_DRIVER_FLOW_DMA_TABLES_AREA_SIZE_IN_BYTES + SEP_DRIVER_STATIC_AREA_SIZE_IN_BYTES + SEP_DRIVER_SYSTEM_DATA_MEMORY_SIZE_IN_BYTES; + /* FIXME: We need to do this in the unload for the device */ /* free shared area */ - sep_unmap_and_free_shared_area(size, sep_dev->shared_area, sep_dev->shared_area_bus); - edbg("SEP Driver: free pages SEP SHARED AREA \n"); - iounmap((void *) sep_dev->reg_addr); - edbg("SEP Driver: iounmap \n"); - /* release io memory region */ - release_mem_region(SEP_IO_MEM_REGION_START_ADDRESS, SEP_IO_MEM_REGION_SIZE); + if (sep_dev) { + sep_unmap_and_free_shared_area(size, sep_dev->shared_area, sep_dev->shared_area_bus); + edbg("SEP Driver: free pages SEP SHARED AREA \n"); + iounmap((void *) sep_dev->reg_addr); + edbg("SEP Driver: iounmap \n"); + } edbg("SEP Driver: release_mem_region \n"); dbg("SEP Driver:<-------- Exit end\n"); } -- 2.20.1