diff options
Diffstat (limited to 'src/vendorcode/cavium/bdk/libbdk-hal/bdk-l2c.c')
| -rw-r--r-- | src/vendorcode/cavium/bdk/libbdk-hal/bdk-l2c.c | 152 |
1 files changed, 19 insertions, 133 deletions
diff --git a/src/vendorcode/cavium/bdk/libbdk-hal/bdk-l2c.c b/src/vendorcode/cavium/bdk/libbdk-hal/bdk-l2c.c index b1e2a88ce1..6c163da2d4 100644 --- a/src/vendorcode/cavium/bdk/libbdk-hal/bdk-l2c.c +++ b/src/vendorcode/cavium/bdk/libbdk-hal/bdk-l2c.c @@ -41,6 +41,8 @@ #include "libbdk-arch/bdk-csrs-l2c.h" #include "libbdk-arch/bdk-csrs-l2c_cbc.h" #include "libbdk-arch/bdk-csrs-mio_fus.h" +#include "libbdk-hal/bdk-l2c.h" +#include "libbdk-hal/bdk-utils.h" typedef struct { @@ -51,56 +53,6 @@ typedef struct static l2_node_state_t l2_node_state[BDK_NUMA_MAX_NODES]; -/** - * Perform one time initialization of L2 for improved - * performance. This can be called after L2 is in use. - * - * @return Zero on success, negative on failure. - */ -int bdk_l2c_initialize(bdk_node_t node) -{ - if (CAVIUM_IS_MODEL(CAVIUM_CN8XXX)) - { - /* Tell L2 to give the IOB statically higher priority compared to the - cores. This avoids conditions where IO blocks might be starved under - very high L2 loads */ - BDK_CSR_MODIFY(c, node, BDK_L2C_CTL, - c.s.rsp_arb_mode = 1; - c.s.xmc_arb_mode = 0); - } - - if (CAVIUM_IS_MODEL(CAVIUM_CN88XX_PASS1_X) && !bdk_is_platform(BDK_PLATFORM_ASIM)) - { - /* Errata: (L2C-22279) RCAS/RSTC which hits S/S can use wrong compare data */ - BDK_CSR_MODIFY(c, node, BDK_L2C_CTL, - c.s.dissblkdty = 1); - /* Errata: (L2C-22249) Broadcast invals can cause starvation on the INV bus */ - for (int i = 0; i < 4; i++) - BDK_CSR_MODIFY(c, node, BDK_L2C_CBCX_SCRATCH(i), - c.s.invdly = 1); - } - - // FIXME: Disable partial writes on pass 2 until it is debugged - if (CAVIUM_IS_MODEL(CAVIUM_CN88XX_PASS2_X) && !bdk_is_platform(BDK_PLATFORM_ASIM)) - { - BDK_CSR_MODIFY(c, node, BDK_L2C_CTL, - c.s.dissblkdty = 1); - } - - if (CAVIUM_IS_MODEL(CAVIUM_CN8XXX) && bdk_is_platform(BDK_PLATFORM_EMULATOR)) - { - /* The emulator requires L2C_CTL[DISSBLKDTY] to be set */ - BDK_CSR_MODIFY(c, node, BDK_L2C_CTL, - c.s.dissblkdty = 1); - } - return 0; -} - -int bdk_l2c_get_core_way_partition(bdk_node_t node, int core) -{ - return (BDK_CSR_READ(node, BDK_L2C_WPAR_PPX(core)) & 0xffff); -} - int bdk_l2c_set_core_way_partition(bdk_node_t node, int core, uint32_t mask) { uint32_t valid_mask = (1 << bdk_l2c_get_num_assoc(node)) - 1; @@ -120,82 +72,11 @@ int bdk_l2c_set_hw_way_partition(bdk_node_t node, uint32_t mask) return 0; } - int bdk_l2c_get_hw_way_partition(bdk_node_t node) { return (BDK_CSR_READ(node, BDK_L2C_WPAR_IOBX(0)) & 0xffff); } - -int bdk_l2c_lock_mem_region(bdk_node_t node, uint64_t start, uint64_t len) -{ - /* Round start/end to cache line boundaries */ - len += start & BDK_CACHE_LINE_MASK; - start &= ~BDK_CACHE_LINE_MASK; - len = (len + BDK_CACHE_LINE_MASK) & ~BDK_CACHE_LINE_MASK; - void *ptr = (start) ? bdk_phys_to_ptr(start) : NULL; - - while (len) - { - BDK_CACHE_LCK_L2(ptr); - ptr += BDK_CACHE_LINE_SIZE; - len -= BDK_CACHE_LINE_SIZE; - } - l2_node_state[node].is_locked = true; - return 0; -} - -void bdk_l2c_flush(bdk_node_t node) -{ - /* The number of ways can be reduced with fuses, but the equations below - assume the max number of ways */ - const int MAX_WAYS = 16; - int num_sets = bdk_l2c_get_num_sets(node); - int num_ways = bdk_l2c_get_num_assoc(node); - - int is_rtg = 1; /* Clear remote tags */ - for (int l2_way = 0; l2_way < num_ways; l2_way++) - { - for (int l2_set = 0; l2_set < num_sets; l2_set++) - { - uint64_t encoded = 128 * (l2_set + num_sets * (l2_way + (is_rtg * MAX_WAYS))); - BDK_CACHE_WBI_L2_INDEXED(encoded); - } - } - - is_rtg = 0; /* Clear local tags */ - for (int l2_way = 0; l2_way < num_ways; l2_way++) - { - for (int l2_set = 0; l2_set < num_sets; l2_set++) - { - uint64_t encoded = 128 * (l2_set + num_sets * (l2_way + (is_rtg * MAX_WAYS))); - BDK_CACHE_WBI_L2_INDEXED(encoded); - } - } - l2_node_state[node].is_locked = false; -} - -int bdk_l2c_unlock_mem_region(bdk_node_t node, uint64_t start, uint64_t len) -{ - /* Round start/end to cache line boundaries */ - len += start & BDK_CACHE_LINE_MASK; - start &= ~BDK_CACHE_LINE_MASK; - len = (len + BDK_CACHE_LINE_MASK) & ~BDK_CACHE_LINE_MASK; - void *ptr = (start) ? bdk_phys_to_ptr(start) : NULL; - - while (len > 0) - { - /* Must use invalidate version to release lock */ - BDK_CACHE_WBI_L2(ptr); - ptr += BDK_CACHE_LINE_SIZE; - len -= BDK_CACHE_LINE_SIZE; - } - - l2_node_state[node].is_locked = false; - return 0; -} - - int bdk_l2c_get_cache_size_bytes(bdk_node_t node) { return bdk_l2c_get_num_sets(node) * bdk_l2c_get_num_assoc(node) * BDK_CACHE_LINE_SIZE; @@ -254,17 +135,22 @@ int bdk_l2c_get_num_assoc(bdk_node_t node) return l2_node_state[node].ways; } -/** - * Return true if the BDK has locked itself in L2 - * - * @return - */ -int bdk_l2c_is_locked(bdk_node_t node) +int bdk_l2c_unlock_mem_region(bdk_node_t node, uint64_t start, uint64_t len) { - /* Determining the lock state of L2 requires reading exact tags from L2 - which varies per chip. Rather than deal with that complexity, we just - keep a flag around saying if the L2 lock functions have been called. - This works for the BDK as its use of locking is very simple */ - return l2_node_state[node].is_locked; -} + /* Round start/end to cache line boundaries */ + len += start & BDK_CACHE_LINE_MASK; + start &= ~BDK_CACHE_LINE_MASK; + len = (len + BDK_CACHE_LINE_MASK) & ~BDK_CACHE_LINE_MASK; + void *ptr = (start) ? bdk_phys_to_ptr(start) : NULL; + while (len > 0) + { + /* Must use invalidate version to release lock */ + BDK_CACHE_WBI_L2(ptr); + ptr += BDK_CACHE_LINE_SIZE; + len -= BDK_CACHE_LINE_SIZE; + } + + l2_node_state[node].is_locked = false; + return 0; +} |