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added support for write-through cache, removed cache snooping support

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This commit is contained in:
Blaise Tine
2020-12-23 23:51:02 -08:00
parent d956e268b9
commit 703a861fe9
55 changed files with 1077 additions and 2178 deletions
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31
driver/opae/vortex.cpp
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@@ -41,7 +41,6 @@
#define CMD_MEM_READ AFU_IMAGE_CMD_MEM_READ
#define CMD_MEM_WRITE AFU_IMAGE_CMD_MEM_WRITE
#define CMD_RUN AFU_IMAGE_CMD_RUN
#define CMD_CLFLUSH AFU_IMAGE_CMD_CLFLUSH
#define CMD_CSR_READ AFU_IMAGE_CMD_CSR_READ
#define CMD_CSR_WRITE AFU_IMAGE_CMD_CSR_WRITE
@@ -462,36 +461,6 @@ extern int vx_copy_from_dev(vx_buffer_h hbuffer, size_t dev_maddr, size_t size,
return 0;
}
extern int vx_flush_caches(vx_device_h hdevice, size_t dev_maddr, size_t size) {
if (nullptr == hdevice
|| 0 >= size)
return -1;
vx_device_t* device = ((vx_device_t*)hdevice);
size_t asize = align_size(size, CACHE_BLOCK_SIZE);
// check alignment
if (!is_aligned(dev_maddr, CACHE_BLOCK_SIZE))
return -1;
// Ensure ready for new command
if (vx_ready_wait(hdevice, -1) != 0)
return -1;
auto ls_shift = (int)std::log2(CACHE_BLOCK_SIZE);
CHECK_RES(fpgaWriteMMIO64(device->fpga, 0, MMIO_MEM_ADDR, dev_maddr >> ls_shift));
CHECK_RES(fpgaWriteMMIO64(device->fpga, 0, MMIO_DATA_SIZE, asize >> ls_shift));
CHECK_RES(fpgaWriteMMIO64(device->fpga, 0, MMIO_CMD_TYPE, CMD_CLFLUSH));
// Wait for the write operation to finish
if (vx_ready_wait(hdevice, -1) != 0)
return -1;
return 0;
}
extern int vx_start(vx_device_h hdevice) {
if (nullptr == hdevice)
return -1;