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Staging: sep: kick out various fields we can prove are not needed
#1: sep->cache_addr is assigned to sep->rar_addr and never changed sep->rar_addr is never assigned after this point #2: sep->cache_bus ditto for sep->rar_bus #3 sep->rar_region_addr is assigned but necer used #4 sep->io_addr is in fact private to the probe function and the same as the reg_addr #5 The remainig sep->io fields are in fact function locals #6 sep->message_shared_area is assigned once from sep->shared_area sep->shared_area does not then change #7 sep->shared_addr and sep->shared_area_addr are the same thing, ditto for the bus addresses. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox
Greg Kroah-Hartman
parent
4c29e97998
commit
70ae04e6cc
2 changed files with 77 additions and 101 deletions
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@ -34,30 +34,23 @@ struct sep_device {
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unsigned long in_use;
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unsigned long io_bus;
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unsigned long io_end_bus;
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unsigned long io_memory_size;
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void __iomem *io_addr;
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/* address of the shared memory allocated during init for SEP driver
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(coherent alloc) */
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void *shared_addr;
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/* the physical address of the shared area */
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dma_addr_t shared_bus;
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/* restricted access region */
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/* restricted access region (coherent alloc) */
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dma_addr_t rar_bus;
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void *rar_addr;
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/* shared memory region */
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dma_addr_t shared_bus;
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void *shared_addr;
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/* firmware regions */
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dma_addr_t cache_bus;
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/* firmware regions: cache is at rar_addr */
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unsigned long cache_size;
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void *cache_addr;
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/* follows the cache */
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dma_addr_t resident_bus;
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unsigned long resident_size;
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void *resident_addr;
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void *rar_region_addr;
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/* start address of the access to the SEP registers from driver */
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void __iomem *reg_addr;
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/* transaction counter that coordinates the transactions between SEP and HOST */
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@ -88,13 +81,6 @@ struct sep_device {
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/* pointer to the workqueue that handles the flow done interrupts */
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struct workqueue_struct *flow_wq;
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/* address of the shared memory allocated during init for SEP driver */
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void *shared_area;
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/* the physical address of the shared area */
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dma_addr_t shared_area_bus;
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/* Message Shared Area start address - will be allocated during init */
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void *message_shared_area_addr;
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};
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static struct sep_device *sep_dev;
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@ -188,10 +188,6 @@ static int sep_load_firmware(struct sep_device *sep)
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edbg("SEP Driver:rar_virtual is %p\n", sep->rar_addr);
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edbg("SEP Driver:rar_bus is %08llx\n", (unsigned long long)sep->rar_bus);
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sep->rar_region_addr = sep->rar_addr;
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sep->cache_bus = sep->rar_bus;
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sep->cache_addr = sep->rar_addr;
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/* load cache */
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error = request_firmware(&fw, cache_name, &sep->pdev->dev);
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if (error) {
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@ -200,12 +196,12 @@ static int sep_load_firmware(struct sep_device *sep)
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}
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edbg("SEP Driver:cache %08Zx@%p\n", fw->size, (void *) fw->data);
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memcpy(sep->cache_addr, (void *)fw->data, fw->size);
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memcpy(sep->rar_addr, (void *)fw->data, fw->size);
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sep->cache_size = fw->size;
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release_firmware(fw);
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sep->resident_bus = sep->cache_bus + sep->cache_size;
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sep->resident_addr = sep->cache_addr + sep->cache_size;
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sep->resident_bus = sep->rar_bus + sep->cache_size;
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sep->resident_addr = sep->rar_addr + sep->cache_size;
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/* load resident */
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error = request_firmware(&fw, res_name, &sep->pdev->dev);
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@ -221,7 +217,7 @@ static int sep_load_firmware(struct sep_device *sep)
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edbg("sep: resident v %p b %08llx cache v %p b %08llx\n",
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sep->resident_addr, (unsigned long long)sep->resident_bus,
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sep->cache_addr, (unsigned long long)sep->cache_bus);
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sep->rar_addr, (unsigned long long)sep->rar_bus);
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return 0;
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}
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@ -245,10 +241,8 @@ static int sep_map_and_alloc_shared_area(struct sep_device *sep,
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edbg("sep_driver :shared memory dma_alloc_coherent failed\n");
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return -ENOMEM;
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}
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sep->shared_area = sep->shared_addr;
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/* set the bus address of the shared area */
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sep->shared_area_bus = sep->shared_bus;
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edbg("sep: shared_area %ld bytes @%p (bus %08llx)\n",
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edbg("sep: shared_addr %ld bytes @%p (bus %08llx)\n",
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size, sep->shared_addr, (unsigned long long)sep->shared_bus);
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return 0;
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}
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@ -264,17 +258,17 @@ static int sep_map_and_alloc_shared_area(struct sep_device *sep,
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static void sep_unmap_and_free_shared_area(struct sep_device *sep, int size)
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{
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dma_free_coherent(&sep->pdev->dev, size,
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sep->shared_area, sep->shared_area_bus);
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sep->shared_addr, sep->shared_bus);
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}
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/**
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* sep_shared_area_virt_to_bus - convert bus/virt addresses
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* sep_shared_virt_to_bus - convert bus/virt addresses
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*
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* Returns the bus address inside the shared area according
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* to the virtual address.
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*/
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static dma_addr_t sep_shared_area_virt_to_bus(struct sep_device *sep,
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static dma_addr_t sep_shared_virt_to_bus(struct sep_device *sep,
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void *virt_address)
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{
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dma_addr_t pa = sep->shared_bus + (virt_address - sep->shared_addr);
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@ -283,13 +277,13 @@ static dma_addr_t sep_shared_area_virt_to_bus(struct sep_device *sep,
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}
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/**
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* sep_shared_area_bus_to_virt - convert bus/virt addresses
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* sep_shared_bus_to_virt - convert bus/virt addresses
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*
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* Returns virtual address inside the shared area according
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* to the bus address.
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*/
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static void *sep_shared_area_bus_to_virt(struct sep_device *sep,
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static void *sep_shared_bus_to_virt(struct sep_device *sep,
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dma_addr_t bus_address)
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{
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return sep->shared_addr + (bus_address - sep->shared_bus);
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@ -391,10 +385,10 @@ static int sep_mmap(struct file *filp, struct vm_area_struct *vma)
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return -EAGAIN;
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}
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edbg("SEP Driver:sep->message_shared_area_addr is %p\n", sep->message_shared_area_addr);
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edbg("SEP Driver:sep->shared_addr is %p\n", sep->shared_addr);
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/* get bus address */
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bus_addr = sep->shared_area_bus;
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bus_addr = sep->shared_bus;
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edbg("SEP Driver: phys_addr is %08llx\n", (unsigned long long)bus_addr);
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@ -429,7 +423,7 @@ static unsigned int sep_poll(struct file *filp, poll_table * wait)
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retval = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR2_REG_ADDR);
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for (count = 0; count < 10 * 4; count += 4)
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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)));
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edbg("Poll Debug Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_addr + SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES + count)));
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}
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sep->reply_ct++;
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@ -445,10 +439,10 @@ static unsigned int sep_poll(struct file *filp, poll_table * wait)
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/* check if the data is ready */
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if (sep->send_ct == sep->reply_ct) {
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for (count = 0; count < 12 * 4; count += 4)
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edbg("Sep Mesg Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + count)));
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edbg("Sep Mesg Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_addr + count)));
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for (count = 0; count < 10 * 4; count += 4)
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edbg("Debug Data Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + 0x1800 + count)));
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edbg("Debug Data Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_addr + 0x1800 + count)));
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retval = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR2_REG_ADDR);
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edbg("retval is %lu\n", retval);
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@ -481,18 +475,18 @@ static int sep_set_time(struct sep_device *sep, unsigned long *address_ptr, unsi
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do_gettimeofday(&time);
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/* set value in the SYSTEM MEMORY offset */
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time_addr = sep->message_shared_area_addr + SEP_DRIVER_SYSTEM_TIME_MEMORY_OFFSET_IN_BYTES;
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time_addr = sep->shared_addr + SEP_DRIVER_SYSTEM_TIME_MEMORY_OFFSET_IN_BYTES;
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time_addr[0] = SEP_TIME_VAL_TOKEN;
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time_addr[1] = time.tv_sec;
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edbg("SEP Driver:time.tv_sec is %lu\n", time.tv_sec);
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edbg("SEP Driver:time_addr is %p\n", time_addr);
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edbg("SEP Driver:sep->message_shared_area_addr is %p\n", sep->message_shared_area_addr);
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edbg("SEP Driver:sep->shared_addr is %p\n", sep->shared_addr);
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/* set the output parameters if needed */
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if (address_ptr)
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*address_ptr = sep_shared_area_virt_to_bus(sep, time_addr);
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*address_ptr = sep_shared_virt_to_bus(sep, time_addr);
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if (time_in_sec_ptr)
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*time_in_sec_ptr = time.tv_sec;
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@ -517,7 +511,7 @@ static void sep_send_command_handler(struct sep_device *sep)
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flush_cache_all();
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for (count = 0; count < 12 * 4; count += 4)
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edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + count)));
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edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_addr + count)));
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/* update counter */
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sep->send_ct++;
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@ -540,7 +534,7 @@ static void sep_send_reply_command_handler(struct sep_device *sep)
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/* flash cache */
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flush_cache_all();
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for (count = 0; count < 12 * 4; count += 4)
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edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_area + count)));
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edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_addr + count)));
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/* update counter */
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sep->send_ct++;
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/* send the interrupt to SEP */
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@ -578,7 +572,7 @@ static int sep_allocate_data_pool_memory_handler(struct sep_device *sep,
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/* set the virtual and bus address */
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command_args.offset = SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES + sep->data_pool_bytes_allocated;
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command_args.phys_address = sep->shared_area_bus + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES + sep->data_pool_bytes_allocated;
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command_args.phys_address = sep->shared_bus + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES + sep->data_pool_bytes_allocated;
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/* write the memory back to the user space */
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error = copy_to_user((void *) arg, (void *) &command_args, sizeof(struct sep_driver_alloc_t));
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@ -624,7 +618,7 @@ static int sep_write_into_data_pool_handler(struct sep_device *sep, unsigned lon
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goto end_function;
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/* calculate the start of the data pool */
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data_pool_area_addr = sep->shared_area + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES;
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data_pool_area_addr = sep->shared_addr + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES;
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/* check that the range of the virtual kernel address is correct */
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@ -672,7 +666,7 @@ static int sep_read_from_data_pool_handler(struct sep_device *sep, unsigned long
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goto end_function;
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/* calculate the start of the data pool */
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data_pool_area_addr = sep->shared_area + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES;
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data_pool_area_addr = sep->shared_addr + SEP_DRIVER_DATA_POOL_AREA_OFFSET_IN_BYTES;
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/* FIXME: These are incomplete all over the driver: what about + len
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and when doing that also overflows */
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@ -1065,7 +1059,7 @@ static void sep_debug_print_lli_tables(struct sep_device *sep, struct sep_lli_en
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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);
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if ((unsigned long) lli_table_ptr != 0xffffffff)
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lli_table_ptr = (struct sep_lli_entry_t *) sep_shared_area_bus_to_virt(sep, (unsigned long) lli_table_ptr);
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lli_table_ptr = (struct sep_lli_entry_t *) sep_shared_bus_to_virt(sep, (unsigned long) lli_table_ptr);
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table_count++;
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}
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@ -1115,16 +1109,16 @@ static int sep_prepare_input_dma_table(struct sep_device *sep,
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if (data_size == 0) {
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/* special case - created 2 entries table with zero data */
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in_lli_table_ptr = (struct sep_lli_entry_t *) (sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES);
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in_lli_table_ptr = (struct sep_lli_entry_t *) (sep->shared_addr + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES);
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/* FIXME: Should the entry below not be for _bus */
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in_lli_table_ptr->physical_address = (unsigned long)sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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in_lli_table_ptr->physical_address = (unsigned long)sep->shared_addr + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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in_lli_table_ptr->block_size = 0;
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in_lli_table_ptr++;
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in_lli_table_ptr->physical_address = 0xFFFFFFFF;
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in_lli_table_ptr->block_size = 0;
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*lli_table_ptr = sep->shared_area_bus + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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*lli_table_ptr = sep->shared_bus + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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*num_entries_ptr = 2;
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*table_data_size_ptr = 0;
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@ -1149,7 +1143,7 @@ static int sep_prepare_input_dma_table(struct sep_device *sep,
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sep_lli_entries = sep->in_num_pages;
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/* initiate to point after the message area */
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lli_table_alloc_addr = sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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lli_table_alloc_addr = sep->shared_addr + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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/* loop till all the entries in in array are not processed */
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while (current_entry < sep_lli_entries) {
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@ -1171,14 +1165,14 @@ static int sep_prepare_input_dma_table(struct sep_device *sep,
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if (info_entry_ptr == 0) {
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/* set the output parameters to physical addresses */
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*lli_table_ptr = sep_shared_area_virt_to_bus(sep, in_lli_table_ptr);
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*lli_table_ptr = sep_shared_virt_to_bus(sep, in_lli_table_ptr);
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*num_entries_ptr = num_entries_in_table;
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*table_data_size_ptr = table_data_size;
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edbg("SEP Driver:output lli_table_in_ptr is %08lx\n", *lli_table_ptr);
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} else {
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/* update the info entry of the previous in table */
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info_entry_ptr->physical_address = sep_shared_area_virt_to_bus(sep, in_lli_table_ptr);
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info_entry_ptr->physical_address = sep_shared_virt_to_bus(sep, in_lli_table_ptr);
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info_entry_ptr->block_size = ((num_entries_in_table) << 24) | (table_data_size);
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}
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@ -1188,7 +1182,7 @@ static int sep_prepare_input_dma_table(struct sep_device *sep,
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/* print input tables */
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sep_debug_print_lli_tables(sep, (struct sep_lli_entry_t *)
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sep_shared_area_bus_to_virt(sep, *lli_table_ptr), *num_entries_ptr, *table_data_size_ptr);
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sep_shared_bus_to_virt(sep, *lli_table_ptr), *num_entries_ptr, *table_data_size_ptr);
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/* the array of the pages */
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kfree(lli_array_ptr);
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@ -1240,7 +1234,7 @@ static int sep_construct_dma_tables_from_lli(struct sep_device *sep,
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dbg("SEP Driver:--------> sep_construct_dma_tables_from_lli start\n");
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/* initiate to pint after the message area */
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lli_table_alloc_addr = sep->shared_area + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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lli_table_alloc_addr = sep->shared_addr + SEP_DRIVER_SYNCHRONIC_DMA_TABLES_AREA_OFFSET_IN_BYTES;
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current_in_entry = 0;
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current_out_entry = 0;
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@ -1288,9 +1282,9 @@ static int sep_construct_dma_tables_from_lli(struct sep_device *sep,
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/* if info entry is null - this is the first table built */
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if (info_in_entry_ptr == 0) {
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/* set the output parameters to physical addresses */
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*lli_table_in_ptr = sep_shared_area_virt_to_bus(sep, in_lli_table_ptr);
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*lli_table_in_ptr = sep_shared_virt_to_bus(sep, in_lli_table_ptr);
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*in_num_entries_ptr = num_entries_in_table;
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*lli_table_out_ptr = sep_shared_area_virt_to_bus(sep, out_lli_table_ptr);
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*lli_table_out_ptr = sep_shared_virt_to_bus(sep, out_lli_table_ptr);
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*out_num_entries_ptr = num_entries_out_table;
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*table_data_size_ptr = table_data_size;
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@ -1298,11 +1292,11 @@ static int sep_construct_dma_tables_from_lli(struct sep_device *sep,
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edbg("SEP Driver:output lli_table_out_ptr is %08lx\n", *lli_table_out_ptr);
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} else {
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/* update the info entry of the previous in table */
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info_in_entry_ptr->physical_address = sep_shared_area_virt_to_bus(sep, in_lli_table_ptr);
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info_in_entry_ptr->physical_address = sep_shared_virt_to_bus(sep, in_lli_table_ptr);
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info_in_entry_ptr->block_size = ((num_entries_in_table) << 24) | (table_data_size);
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|
||||
/* update the info entry of the previous in table */
|
||||
info_out_entry_ptr->physical_address = sep_shared_area_virt_to_bus(sep, out_lli_table_ptr);
|
||||
info_out_entry_ptr->physical_address = sep_shared_virt_to_bus(sep, out_lli_table_ptr);
|
||||
info_out_entry_ptr->block_size = ((num_entries_out_table) << 24) | (table_data_size);
|
||||
}
|
||||
|
||||
|
|
@ -1317,10 +1311,10 @@ static int sep_construct_dma_tables_from_lli(struct sep_device *sep,
|
|||
|
||||
/* print input tables */
|
||||
sep_debug_print_lli_tables(sep, (struct sep_lli_entry_t *)
|
||||
sep_shared_area_bus_to_virt(sep, *lli_table_in_ptr), *in_num_entries_ptr, *table_data_size_ptr);
|
||||
sep_shared_bus_to_virt(sep, *lli_table_in_ptr), *in_num_entries_ptr, *table_data_size_ptr);
|
||||
/* print output tables */
|
||||
sep_debug_print_lli_tables(sep, (struct sep_lli_entry_t *)
|
||||
sep_shared_area_bus_to_virt(sep, *lli_table_out_ptr), *out_num_entries_ptr, *table_data_size_ptr);
|
||||
sep_shared_bus_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;
|
||||
}
|
||||
|
|
@ -1494,7 +1488,7 @@ static int sep_find_free_flow_dma_table_space(struct sep_device *sep,
|
|||
unsigned long table_size_in_words;
|
||||
|
||||
/* find the start address of the flow DMA table area */
|
||||
flow_dma_area_start_addr = sep->shared_area + SEP_DRIVER_FLOW_DMA_TABLES_AREA_OFFSET_IN_BYTES;
|
||||
flow_dma_area_start_addr = sep->shared_addr + 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;
|
||||
|
|
@ -1958,8 +1952,8 @@ static int sep_get_static_pool_addr_handler(struct sep_device *sep, unsigned lon
|
|||
dbg("SEP Driver:--------> sep_get_static_pool_addr_handler start\n");
|
||||
|
||||
/*prepare the output parameters in the struct */
|
||||
command_args.physical_static_address = sep->shared_area_bus + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES;
|
||||
command_args.virtual_static_address = (unsigned long)sep->shared_area + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES;
|
||||
command_args.physical_static_address = sep->shared_bus + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES;
|
||||
command_args.virtual_static_address = (unsigned long)sep->shared_addr + SEP_DRIVER_STATIC_AREA_OFFSET_IN_BYTES;
|
||||
|
||||
edbg("SEP Driver:bus_static_address is %08lx, virtual_static_address %08lx\n", command_args.physical_static_address, command_args.virtual_static_address);
|
||||
|
||||
|
|
@ -1984,13 +1978,13 @@ static int sep_get_physical_mapped_offset_handler(struct sep_device *sep, unsign
|
|||
if (error)
|
||||
goto end_function;
|
||||
|
||||
if (command_args.physical_address < sep->shared_area_bus) {
|
||||
if (command_args.physical_address < sep->shared_bus) {
|
||||
error = -EINVAL;
|
||||
goto end_function;
|
||||
}
|
||||
|
||||
/*prepare the output parameters in the struct */
|
||||
command_args.offset = command_args.physical_address - sep->shared_area_bus;
|
||||
command_args.offset = command_args.physical_address - sep->shared_bus;
|
||||
|
||||
edbg("SEP Driver:bus_address is %08lx, offset is %lu\n", command_args.physical_address, command_args.offset);
|
||||
|
||||
|
|
@ -2106,26 +2100,26 @@ static int sep_realloc_cache_resident_handler(struct sep_device *sep,
|
|||
if (error)
|
||||
return error;
|
||||
|
||||
command_args.new_base_addr = sep->shared_area_bus;
|
||||
command_args.new_base_addr = sep->shared_bus;
|
||||
|
||||
/* find the new base address according to the lowest address between
|
||||
cache, resident and shared area */
|
||||
if (sep->resident_bus < command_args.new_base_addr)
|
||||
command_args.new_base_addr = sep->resident_bus;
|
||||
if (sep->cache_bus < command_args.new_base_addr)
|
||||
command_args.new_base_addr = sep->cache_bus;
|
||||
if (sep->rar_bus < command_args.new_base_addr)
|
||||
command_args.new_base_addr = sep->rar_bus;
|
||||
|
||||
/* set the return parameters */
|
||||
command_args.new_cache_addr = sep->cache_bus;
|
||||
command_args.new_cache_addr = sep->rar_bus;
|
||||
command_args.new_resident_addr = sep->resident_bus;
|
||||
|
||||
/* set the new shared area */
|
||||
command_args.new_shared_area_addr = sep->shared_area_bus;
|
||||
command_args.new_shared_area_addr = sep->shared_bus;
|
||||
|
||||
edbg("SEP Driver:command_args.new_shared_area is %08llx\n", command_args.new_shared_area_addr);
|
||||
edbg("SEP Driver:command_args.new_shared_addr is %08llx\n", command_args.new_shared_area_addr);
|
||||
edbg("SEP Driver:command_args.new_base_addr is %08llx\n", command_args.new_base_addr);
|
||||
edbg("SEP Driver:command_args.new_resident_addr is %08llx\n", command_args.new_resident_addr);
|
||||
edbg("SEP Driver:command_args.new_cache_addr is %08llx\n", command_args.new_cache_addr);
|
||||
edbg("SEP Driver:command_args.new_rar_addr is %08llx\n", command_args.new_cache_addr);
|
||||
|
||||
/* return to user */
|
||||
if (copy_to_user((void *) arg, &command_args, sizeof(struct sep_driver_realloc_cache_resident_t)))
|
||||
|
|
@ -2320,7 +2314,7 @@ 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->shared_area, flow_data_ptr->message_size_in_bytes);
|
||||
memcpy((void *) flow_data_ptr->message, (void *) sep->shared_addr, flow_data_ptr->message_size_in_bytes);
|
||||
|
||||
sep_write_reg(sep, HW_HOST_HOST_SEP_GPR2_REG_ADDR, 0x2);
|
||||
}
|
||||
|
|
@ -2431,6 +2425,8 @@ static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id
|
|||
struct sep_device *sep;
|
||||
int counter;
|
||||
int size; /* size of memory for allocation */
|
||||
unsigned long iosize;
|
||||
unsigned long bar0, end0;
|
||||
|
||||
edbg("Sep pci probe starting\n");
|
||||
if (sep_dev != NULL) {
|
||||
|
|
@ -2449,7 +2445,7 @@ static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id
|
|||
sep_dev = &sep_instance;
|
||||
sep = &sep_instance;
|
||||
|
||||
edbg("sep->shared_area = %lx\n", (unsigned long) &sep->shared_area);
|
||||
edbg("sep->shared_addr = %p\n", sep->shared_addr);
|
||||
/* transaction counter that coordinates the transactions between SEP
|
||||
and HOST */
|
||||
sep->send_ct = 0;
|
||||
|
|
@ -2470,21 +2466,17 @@ static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id
|
|||
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 %p\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);
|
||||
sep_write_reg(sep, HW_HOST_HOST_SEP_GPR1_REG_ADDR, sep->shared_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)
|
||||
while (retval != 0xffffffff && retval != sep->shared_bus)
|
||||
retval = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR1_REG_ADDR);
|
||||
|
||||
/* check the return value (register) */
|
||||
if (retval != sep->shared_area_bus) {
|
||||
if (retval != sep->shared_bus) {
|
||||
error = -ENOMEM;
|
||||
goto end_function_deallocate_sep_shared_area;
|
||||
}
|
||||
|
|
@ -2506,36 +2498,34 @@ static int __devinit sep_probe(struct pci_dev *pdev, const struct pci_device_id
|
|||
sep->pdev = pci_dev_get(pdev);
|
||||
|
||||
/* get the io memory start address */
|
||||
sep->io_bus = pci_resource_start(pdev, 0);
|
||||
if (!sep->io_bus) {
|
||||
bar0 = pci_resource_start(pdev, 0);
|
||||
if (!bar0) {
|
||||
edbg("SEP Driver error pci resource start\n");
|
||||
goto end_function_deallocate_sep_shared_area;
|
||||
}
|
||||
|
||||
/* get the io memory end address */
|
||||
sep->io_end_bus = pci_resource_end(pdev, 0);
|
||||
if (!sep->io_end_bus) {
|
||||
end0 = pci_resource_end(pdev, 0);
|
||||
if (!end0) {
|
||||
edbg("SEP Driver error pci resource end\n");
|
||||
goto end_function_deallocate_sep_shared_area;
|
||||
}
|
||||
|
||||
sep->io_memory_size = sep->io_end_bus - sep->io_bus + 1;
|
||||
iosize = end0 - bar0 + 1;
|
||||
|
||||
edbg("SEP Driver:io_bus is %08lx\n", sep->io_bus);
|
||||
edbg("SEP Driver:io_bus is %08lx\n", bar0);
|
||||
|
||||
edbg("SEP Driver:io_memory_end_phyaical_address is %08lx\n", sep->io_end_bus);
|
||||
edbg("SEP Driver:io_memory_end_phyaical_address is %08lx\n", end0);
|
||||
|
||||
edbg("SEP Driver:io_memory_size is %08lx\n", sep->io_memory_size);
|
||||
edbg("SEP Driver:io_memory_size is %08lx\n", iosize);
|
||||
|
||||
sep->io_addr = ioremap_nocache(sep->io_bus, sep->io_memory_size);
|
||||
if (!sep->io_addr) {
|
||||
sep->reg_addr = ioremap_nocache(bar0, iosize);
|
||||
if (!sep->reg_addr) {
|
||||
edbg("SEP Driver error ioremap of io memory\n");
|
||||
goto end_function_deallocate_sep_shared_area;
|
||||
}
|
||||
|
||||
edbg("SEP Driver:io_addr is %p\n", sep->io_addr);
|
||||
|
||||
sep->reg_addr = (void __iomem *) sep->io_addr;
|
||||
edbg("SEP Driver:io_addr is %p\n", sep->reg_addr);
|
||||
|
||||
/* set up system base address and shared memory location */
|
||||
|
||||
|
|
@ -2578,7 +2568,7 @@ end_function_free_res:
|
|||
sep->rar_addr, sep->rar_bus);
|
||||
#endif /* SEP_DRIVER_POLLING_MODE */
|
||||
end_function_uniomap:
|
||||
iounmap(sep->io_addr);
|
||||
iounmap(sep->reg_addr);
|
||||
end_function_deallocate_sep_shared_area:
|
||||
/* de-allocate shared area */
|
||||
sep_unmap_and_free_shared_area(sep, size);
|
||||
|
|
|
|||
Loading…
Reference in a new issue