Edward O'Callaghan (eocallaghan@alterapraxis.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6215
-gerrit
commit b8262af76f217921272b446f86302fb1d946514d Author: Edward O'Callaghan eocallaghan@alterapraxis.com Date: Tue Jul 8 01:53:24 2014 +1000
src: Make use of 'CEIL_DIV(a, b)' macro across tree
The objective here is to tighten coreboot up a bit by not repeating common helpers. This makes the code base more consistent and unified/tight.
Change-Id: Ia163eae68b4a84a00ed118125e70308fab1cea0c Signed-off-by: Edward O'Callaghan eocallaghan@alterapraxis.com --- src/cpu/allwinner/a10/clock.c | 9 ++------- src/cpu/samsung/exynos5420/clock.c | 7 +------ src/northbridge/amd/amdk8/raminit.c | 12 ++++++------ src/northbridge/amd/amdk8/raminit_f.c | 6 +++--- src/northbridge/intel/i3100/raminit_ep80579.c | 10 +++++----- src/northbridge/intel/nehalem/raminit.c | 4 ++-- src/northbridge/via/vx800/timing_setting.c | 10 +++++----- src/northbridge/via/vx900/raminit_ddr3.c | 22 +++++++++++----------- 8 files changed, 35 insertions(+), 45 deletions(-)
diff --git a/src/cpu/allwinner/a10/clock.c b/src/cpu/allwinner/a10/clock.c index 945dfd7..f189aea 100644 --- a/src/cpu/allwinner/a10/clock.c +++ b/src/cpu/allwinner/a10/clock.c @@ -159,11 +159,6 @@ static const struct { { PLL1_CFG(20, 4, 1, 0), 1944 }, };
-static inline u32 div_ceil(u32 a, u32 b) -{ - return (a + b - 1) / b; -} - static void cpu_clk_src_switch(u32 clksel_bits) { u32 reg32; @@ -241,8 +236,8 @@ void a1x_set_cpu_clock(u16 cpu_clk_mhz) * will always be in spec, as long as AHB is in spec, although the max * AHB0 clock we can get is 125 MHz */ - axi = div_ceil(actual_mhz, 450); /* Max 450 MHz */ - ahb = div_ceil(actual_mhz/axi, 250); /* Max 250 MHz */ + axi = CEIL_DIV(actual_mhz, 450); /* Max 450 MHz */ + ahb = CEIL_DIV(actual_mhz/axi, 250); /* Max 250 MHz */ apb0 = 2; /* Max 150 MHz */
ahb_exp = log2_ceil(ahb); diff --git a/src/cpu/samsung/exynos5420/clock.c b/src/cpu/samsung/exynos5420/clock.c index 34d3fb5..7ecb717 100644 --- a/src/cpu/samsung/exynos5420/clock.c +++ b/src/cpu/samsung/exynos5420/clock.c @@ -40,11 +40,6 @@ static struct st_epll_con_val epll_div[] = { { 180633600, 0, 45, 3, 1, 10381 } };
-static inline unsigned long div_round_up(unsigned int n, unsigned int d) -{ - return (n + d - 1) / d; -} - /* exynos5: return pll clock frequency */ unsigned long get_pll_clk(int pllreg) { @@ -346,7 +341,7 @@ int clock_set_dwmci(enum periph_id peripheral) if (!sclk) { return -1; } - div = div_round_up(sclk, freq); + div = CEIL_DIV(sclk, freq); set_mmc_clk(device_index, div); return 0; } diff --git a/src/northbridge/amd/amdk8/raminit.c b/src/northbridge/amd/amdk8/raminit.c index 7e42e94..f319450 100644 --- a/src/northbridge/amd/amdk8/raminit.c +++ b/src/northbridge/amd/amdk8/raminit.c @@ -1712,7 +1712,7 @@ static int update_dimm_Trc(const struct mem_controller *ctrl, const struct mem_p if ((value == 0) || (value == 0xff)) { value = param->tRC; } - clocks = ((value << 1) + param->divisor - 1)/param->divisor; + clocks = CEIL_DIV((value << 1), param->divisor); if (clocks < DTL_TRC_MIN) { clocks = DTL_TRC_MIN; } @@ -1741,7 +1741,7 @@ static int update_dimm_Trfc(const struct mem_controller *ctrl, const struct mem_ if ((value == 0) || (value == 0xff)) { value = param->tRFC; } - clocks = ((value << 1) + param->divisor - 1)/param->divisor; + clocks = CEIL_DIV((value << 1), param->divisor); if (clocks < DTL_TRFC_MIN) { clocks = DTL_TRFC_MIN; } @@ -1767,7 +1767,7 @@ static int update_dimm_Trcd(const struct mem_controller *ctrl, const struct mem_ int value; value = spd_read_byte(ctrl->channel0[i], 29); if (value < 0) return -1; - clocks = (value + (param->divisor << 1) -1)/(param->divisor << 1); + clocks = CEIL_DIV(value, (param->divisor << 1)); if (clocks < DTL_TRCD_MIN) { clocks = DTL_TRCD_MIN; } @@ -1792,7 +1792,7 @@ static int update_dimm_Trrd(const struct mem_controller *ctrl, const struct mem_ int value; value = spd_read_byte(ctrl->channel0[i], 28); if (value < 0) return -1; - clocks = (value + (param->divisor << 1) -1)/(param->divisor << 1); + clocks = CEIL_DIV(value, (param->divisor << 1)); if (clocks < DTL_TRRD_MIN) { clocks = DTL_TRRD_MIN; } @@ -1817,7 +1817,7 @@ static int update_dimm_Tras(const struct mem_controller *ctrl, const struct mem_ int value; value = spd_read_byte(ctrl->channel0[i], 30); if (value < 0) return -1; - clocks = ((value << 1) + param->divisor - 1)/param->divisor; + clocks = CEIL_DIV((value << 1), param->divisor); if (clocks < DTL_TRAS_MIN) { clocks = DTL_TRAS_MIN; } @@ -1842,7 +1842,7 @@ static int update_dimm_Trp(const struct mem_controller *ctrl, const struct mem_p int value; value = spd_read_byte(ctrl->channel0[i], 27); if (value < 0) return -1; - clocks = (value + (param->divisor << 1) - 1)/(param->divisor << 1); + clocks = CEIL_DIV(value, (param->divisor << 1)); if (clocks < DTL_TRP_MIN) { clocks = DTL_TRP_MIN; } diff --git a/src/northbridge/amd/amdk8/raminit_f.c b/src/northbridge/amd/amdk8/raminit_f.c index 36e0527..b8417a6 100644 --- a/src/northbridge/amd/amdk8/raminit_f.c +++ b/src/northbridge/amd/amdk8/raminit_f.c @@ -1973,7 +1973,7 @@ static int get_dimm_Trc_clocks(u32 spd_device, const struct mem_param *param) value *= 10; printk_raminit("update_dimm_Trc: tRC final value = %i\n", value);
- clocks = (value + param->divisor - 1)/param->divisor; + clocks = CEIL_DIV(value, param->divisor); printk_raminit("update_dimm_Trc: clocks = %i\n", clocks);
if (clocks < DTL_TRC_MIN) { @@ -2069,7 +2069,7 @@ static int update_dimm_TT_1_4(const struct mem_controller *ctrl, const struct me value = spd_read_byte(spd_device, SPD_TT); //already in 1/4 ns if (value < 0) return -1; value *=10; - clocks = (value + param->divisor -1)/param->divisor; + clocks = CEIL_DIV(value, param->divisor); if (clocks < TT_MIN) { clocks = TT_MIN; } @@ -2123,7 +2123,7 @@ static int update_dimm_Tras(const struct mem_controller *ctrl, const struct mem_ value *= 10; printk_raminit("update_dimm_Tras: 1 value= %08x\n", value);
- clocks = (value + param->divisor - 1)/param->divisor; + clocks = CEIL_DIV(value, param->divisor); printk_raminit("update_dimm_Tras: divisor= %08x\n", param->divisor); printk_raminit("update_dimm_Tras: clocks= %08x\n", clocks); if (clocks < DTL_TRAS_MIN) { diff --git a/src/northbridge/intel/i3100/raminit_ep80579.c b/src/northbridge/intel/i3100/raminit_ep80579.c index 90c1005..962b7aa 100644 --- a/src/northbridge/intel/i3100/raminit_ep80579.c +++ b/src/northbridge/intel/i3100/raminit_ep80579.c @@ -335,7 +335,7 @@ static u32 spd_set_drt_attributes(const struct mem_controller *ctrl, val = spd_read_byte(ctrl->channel0[i], SPD_MIN_ACT_TO_ACT_AUTO_REFRESH); val <<= 2; /* convert to 1/4 ns */ val += byte40rem[(val1 >> 4) & 0x7]; - val = (val + ci - 1) / ci + 1; /* convert to cycles */ + val = CEIL_DIV(val, ci) + 1; /* convert to cycles */ if (trc < val) trc = val; val = spd_read_byte(ctrl->channel0[i], SPD_MIN_AUTO_REFRESH_TO_ACT); @@ -343,7 +343,7 @@ static u32 spd_set_drt_attributes(const struct mem_controller *ctrl, if (val1 & 0x01) val += 1024; val += byte40rem[(val1 >> 1) & 0x7]; - val = (val + ci - 1) / ci; /* convert to cycles */ + val = CEIL_DIV(val, ci); /* convert to cycles */ if (trfc < val) trfc = val; } @@ -360,15 +360,15 @@ static u32 spd_set_drt_attributes(const struct mem_controller *ctrl, continue; val = spd_read_byte(ctrl->channel0[i], SPD_MIN_ACTIVE_TO_PRECHARGE_DELAY); val <<= 2; /* convert to 1/4 ns */ - val = (val + ci - 1) / ci; /* convert to cycles */ + val = CEIL_DIV(val, ci); /* convert to cycles */ if (tras < val) tras = val; val = spd_read_byte(ctrl->channel0[i], SPD_INT_READ_TO_PRECHARGE_DELAY); - val = (val + ci - 1) / ci; /* convert to cycles */ + val = CEIL_DIV(val, ci); /* convert to cycles */ if (trtp < val) trtp = val; val = spd_read_byte(ctrl->channel0[i], SPD_INT_WRITE_TO_READ_DELAY); - val = (val + ci - 1) / ci; /* convert to cycles */ + val = CEIL_DIV(val, ci); /* convert to cycles */ if (twtr < val) twtr = val; } diff --git a/src/northbridge/intel/nehalem/raminit.c b/src/northbridge/intel/nehalem/raminit.c index 761dc52..6673b5a 100644 --- a/src/northbridge/intel/nehalem/raminit.c +++ b/src/northbridge/intel/nehalem/raminit.c @@ -647,7 +647,7 @@ static void calculate_timings(struct raminfo *info) break; } } - min_cas_latency = (cas_latency_time + cycletime - 1) / cycletime; + min_cas_latency = CEIL_DIV(cas_latency_time, cycletime); cas_latency = 0; while (supported_cas_latencies) { cas_latency = find_highest_bit_set(supported_cas_latencies) + 3; @@ -3337,7 +3337,7 @@ static unsigned gcd(unsigned a, unsigned b)
static inline int div_roundup(int a, int b) { - return (a + b - 1) / b; + return CEIL_DIV(a, b); }
static unsigned lcm(unsigned a, unsigned b) diff --git a/src/northbridge/via/vx800/timing_setting.c b/src/northbridge/via/vx800/timing_setting.c index df90304..ae65910 100644 --- a/src/northbridge/via/vx800/timing_setting.c +++ b/src/northbridge/via/vx800/timing_setting.c @@ -213,7 +213,7 @@ void SetTras(DRAM_SYS_ATTR * DramAttr) }
/*Calculate clock,value range 5T-20T */ - Tmp = (u16) ((Max * 100 + DramAttr->DramCyc - 1) / (DramAttr->DramCyc)); + Tmp = (u16) CEIL_DIV((Max * 100), DramAttr->DramCyc); PRINT_DEBUG_MEM("Tras ="); PRINT_DEBUG_MEM_HEX16(Tmp); PRINT_DEBUG_MEM("\r"); @@ -288,7 +288,7 @@ void SetTrfc(DRAM_SYS_ATTR * DramAttr) }
/*Calculate clock,value range 8T-71T */ - Tmp = (u16) ((Max + DramAttr->DramCyc - 1) / (DramAttr->DramCyc)); + Tmp = (u16) CEIL_DIV(Max, DramAttr->DramCyc); PRINT_DEBUG_MEM("Trfc = "); PRINT_DEBUG_MEM_HEX16(Tmp); PRINT_DEBUG_MEM("\r"); @@ -378,7 +378,7 @@ void SetTwr(DRAM_SYS_ATTR * DramAttr) } } /*Calculate clock */ - Tmp = (u16) ((Max * 100 + ((DramAttr->DramCyc) << 2) - 1) / ((DramAttr->DramCyc) << 2)); //this value should be 2T,3T,4T,5T + Tmp = (u16) CEIL_DIV((Max * 100), ((DramAttr->DramCyc) << 2)); //this value should be 2T,3T,4T,5T PRINT_DEBUG_MEM("Twr = "); PRINT_DEBUG_MEM_HEX16(Tmp); PRINT_DEBUG_MEM("\r"); @@ -421,7 +421,7 @@ void SetTwtr(DRAM_SYS_ATTR * DramAttr) } } /*Calculate clock */ - Tmp = (u16) ((Max * 100 + ((DramAttr->DramCyc) << 2) - 1) / ((DramAttr->DramCyc) << 2)); //this value should be 2T or 3T + Tmp = (u16) CEIL_DIV((Max * 100), ((DramAttr->DramCyc) << 2)); //this value should be 2T or 3T
PRINT_DEBUG_MEM("Twtr ="); PRINT_DEBUG_MEM_HEX16(Tmp); @@ -463,7 +463,7 @@ void SetTrtp(DRAM_SYS_ATTR * DramAttr) } } /*Calculate clock */ - Tmp = (u16) ((Max * 100 + ((DramAttr->DramCyc) << 2) - 1) / ((DramAttr->DramCyc) << 2)); //this value should be 2T or 3T + Tmp = (u16) CEIL_DIV((Max * 100), ((DramAttr->DramCyc) << 2)); //this value should be 2T or 3T
PRINT_DEBUG_MEM("Trtp ="); PRINT_DEBUG_MEM_HEX16(Tmp); diff --git a/src/northbridge/via/vx900/raminit_ddr3.c b/src/northbridge/via/vx900/raminit_ddr3.c index a69d699..3979466 100644 --- a/src/northbridge/via/vx900/raminit_ddr3.c +++ b/src/northbridge/via/vx900/raminit_ddr3.c @@ -575,7 +575,7 @@ static void vx900_dram_timing(ramctr_timing * ctrl) printram("Selected DRAM frequency: %u MHz\n", val32);
/* Find CAS and CWL latencies */ - val = (ctrl->tAA + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tAA, ctrl->tCK); printram("Minimum CAS latency : %uT\n", val); /* Find lowest supported CAS latency that satisfies the minimum value */ while (!((ctrl->cas_supported >> (val - 4)) & 1) @@ -594,30 +594,30 @@ static void vx900_dram_timing(ramctr_timing * ctrl) pci_write_config8(MCU, 0xc0, reg8);
/* Find tRCD */ - val = (ctrl->tRCD + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tRCD, ctrl->tCK); printram("Selected tRCD : %uT\n", val); reg8 = ((val - 4) & 0x7) << 4; /* Find tRP */ - val = (ctrl->tRP + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tRP, ctrl->tCK); printram("Selected tRP : %uT\n", val); reg8 |= ((val - 4) & 0x7); pci_write_config8(MCU, 0xc1, reg8);
/* Find tRAS */ - val = (ctrl->tRAS + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tRAS, ctrl->tCK); printram("Selected tRAS : %uT\n", val); reg8 = ((val - 15) & 0x7) << 4; /* Find tWR */ - ctrl->WR = (ctrl->tWR + ctrl->tCK - 1) / ctrl->tCK; + ctrl->WR = CEIL_DIV(ctrl->tWR, ctrl->tCK); printram("Selected tWR : %uT\n", ctrl->WR); reg8 |= ((ctrl->WR - 4) & 0x7); pci_write_config8(MCU, 0xc2, reg8);
/* Find tFAW */ - tFAW = (ctrl->tFAW + ctrl->tCK - 1) / ctrl->tCK; + tFAW = CEIL_DIV(ctrl->tFAW, ctrl->tCK); printram("Selected tFAW : %uT\n", tFAW); /* Find tRRD */ - tRRD = (ctrl->tRRD + ctrl->tCK - 1) / ctrl->tCK; + tRRD = CEIL_DIV(ctrl->tRRD, ctrl->tCK); printram("Selected tRRD : %uT\n", tRRD); val = tFAW - 4 * tRRD; /* number of cycles above 4*tRRD */ reg8 = ((val - 0) & 0x7) << 4; @@ -625,11 +625,11 @@ static void vx900_dram_timing(ramctr_timing * ctrl) pci_write_config8(MCU, 0xc3, reg8);
/* Find tRTP */ - val = (ctrl->tRTP + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tRTP, ctrl->tCK); printram("Selected tRTP : %uT\n", val); reg8 = ((val & 0x3) << 4); /* Find tWTR */ - val = (ctrl->tWTR + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tWTR, ctrl->tCK); printram("Selected tWTR : %uT\n", val); reg8 |= ((val - 2) & 0x7); pci_mod_config8(MCU, 0xc4, 0x3f, reg8); @@ -642,7 +642,7 @@ static void vx900_dram_timing(ramctr_timing * ctrl) * Since we previously set RxC4[7] */ reg8 = pci_read_config8(MCU, 0xc5); - val = (ctrl->tRFC + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tRFC, ctrl->tCK); printram("Minimum tRFC : %uT\n", val); if (val < 30) { val = 0; @@ -655,7 +655,7 @@ static void vx900_dram_timing(ramctr_timing * ctrl) pci_write_config8(MCU, 0xc5, reg8);
/* Where does this go??? */ - val = (ctrl->tRC + ctrl->tCK - 1) / ctrl->tCK; + val = CEIL_DIV(ctrl->tRC, ctrl->tCK); printram("Required tRC : %uT\n", val); }