diff options
| author | Jayachandran C <jchandra@broadcom.com> | 2015-01-07 16:58:33 +0530 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-04-01 17:21:52 +0200 |
| commit | b3b73ae62ca82744c92c1c2d49381add26d0a8bd (patch) | |
| tree | d0549c052e82468cce62a13899fc69011cebb12e /arch/mips/netlogic | |
| parent | ddba6833bbc5d0e1ed264ada2c00927c9f7cc11f (diff) | |
| download | linux-b3b73ae62ca82744c92c1c2d49381add26d0a8bd.tar.gz | |
MIPS: Netlogic: Update function to read DRAM BARs
Change name of xlp_get_dram_map to nlm_get_dram_map to be consistent with the rest of the functions in the file. Pass the the size of the array 'dram_map' to the function, and ensure that it does not write past the end of the array. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8892/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/netlogic')
| -rw-r--r-- | arch/mips/netlogic/xlp/nlm_hal.c | 12 | ||||
| -rw-r--r-- | arch/mips/netlogic/xlp/setup.c | 2 |
2 files changed, 8 insertions, 6 deletions
diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c index b80d893da9ad..c6c31e3c0949 100644 --- a/arch/mips/netlogic/xlp/nlm_hal.c +++ b/arch/mips/netlogic/xlp/nlm_hal.c @@ -449,19 +449,21 @@ unsigned int nlm_get_cpu_frequency(void) /* * Fills upto 8 pairs of entries containing the DRAM map of a node - * if n < 0, get dram map for all nodes + * if node < 0, get dram map for all nodes */ -int xlp_get_dram_map(int n, uint64_t *dram_map) +int nlm_get_dram_map(int node, uint64_t *dram_map, int nentries) { uint64_t bridgebase, base, lim; uint32_t val; unsigned int barreg, limreg, xlatreg; - int i, node, rv; + int i, n, rv; /* Look only at mapping on Node 0, we don't handle crazy configs */ bridgebase = nlm_get_bridge_regbase(0); rv = 0; for (i = 0; i < 8; i++) { + if (rv + 1 >= nentries) + break; if (cpu_is_xlp9xx()) { barreg = BRIDGE_9XX_DRAM_BAR(i); limreg = BRIDGE_9XX_DRAM_LIMIT(i); @@ -471,10 +473,10 @@ int xlp_get_dram_map(int n, uint64_t *dram_map) limreg = BRIDGE_DRAM_LIMIT(i); xlatreg = BRIDGE_DRAM_NODE_TRANSLN(i); } - if (n >= 0) { + if (node >= 0) { /* node specified, get node mapping of BAR */ val = nlm_read_bridge_reg(bridgebase, xlatreg); - node = (val >> 1) & 0x3; + n = (val >> 1) & 0x3; if (n != node) continue; } diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c index 27113a17f18d..f743fd9da323 100644 --- a/arch/mips/netlogic/xlp/setup.c +++ b/arch/mips/netlogic/xlp/setup.c @@ -81,7 +81,7 @@ static void __init xlp_init_mem_from_bars(void) uint64_t map[16]; int i, n; - n = xlp_get_dram_map(-1, map); /* -1: info for all nodes */ + n = nlm_get_dram_map(-1, map, ARRAY_SIZE(map)); /* -1 : all nodes */ for (i = 0; i < n; i += 2) { /* exclude 0x1000_0000-0x2000_0000, u-boot device */ if (map[i] <= 0x10000000 && map[i+1] > 0x10000000) |