x86: Change range end to start+size
So make interface more consistent with early_res. Later we can share some code with early_res. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1265793639-15071-10-git-send-email-yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Yinghai Lu
H. Peter Anvin
Родитель
284f933d45
Коммит
e9a0064ad0
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@ -78,13 +78,13 @@ x86_get_mtrr_mem_range(struct range *range, int nr_range,
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base = range_state[i].base_pfn;
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size = range_state[i].size_pfn;
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nr_range = add_range_with_merge(range, RANGE_NUM, nr_range,
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base, base + size - 1);
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base, base + size);
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}
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if (debug_print) {
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printk(KERN_DEBUG "After WB checking\n");
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for (i = 0; i < nr_range; i++)
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printk(KERN_DEBUG "MTRR MAP PFN: %016llx - %016llx\n",
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range[i].start, range[i].end + 1);
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range[i].start, range[i].end);
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}
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/* Take out UC ranges: */
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@ -106,11 +106,11 @@ x86_get_mtrr_mem_range(struct range *range, int nr_range,
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size -= (1<<(20-PAGE_SHIFT)) - base;
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base = 1<<(20-PAGE_SHIFT);
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}
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subtract_range(range, RANGE_NUM, base, base + size - 1);
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subtract_range(range, RANGE_NUM, base, base + size);
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}
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if (extra_remove_size)
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subtract_range(range, RANGE_NUM, extra_remove_base,
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extra_remove_base + extra_remove_size - 1);
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extra_remove_base + extra_remove_size);
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if (debug_print) {
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printk(KERN_DEBUG "After UC checking\n");
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@ -118,7 +118,7 @@ x86_get_mtrr_mem_range(struct range *range, int nr_range,
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if (!range[i].end)
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continue;
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printk(KERN_DEBUG "MTRR MAP PFN: %016llx - %016llx\n",
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range[i].start, range[i].end + 1);
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range[i].start, range[i].end);
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}
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}
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@ -128,7 +128,7 @@ x86_get_mtrr_mem_range(struct range *range, int nr_range,
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printk(KERN_DEBUG "After sorting\n");
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for (i = 0; i < nr_range; i++)
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printk(KERN_DEBUG "MTRR MAP PFN: %016llx - %016llx\n",
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range[i].start, range[i].end + 1);
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range[i].start, range[i].end);
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}
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return nr_range;
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@ -142,7 +142,7 @@ static unsigned long __init sum_ranges(struct range *range, int nr_range)
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int i;
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for (i = 0; i < nr_range; i++)
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sum += range[i].end + 1 - range[i].start;
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sum += range[i].end - range[i].start;
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return sum;
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}
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@ -489,7 +489,7 @@ x86_setup_var_mtrrs(struct range *range, int nr_range,
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/* Write the range: */
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for (i = 0; i < nr_range; i++) {
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set_var_mtrr_range(&var_state, range[i].start,
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range[i].end - range[i].start + 1);
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range[i].end - range[i].start);
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}
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/* Write the last range: */
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@ -720,7 +720,7 @@ int __init mtrr_cleanup(unsigned address_bits)
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* and fixed mtrrs should take effect before var mtrr for it:
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*/
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nr_range = add_range_with_merge(range, RANGE_NUM, nr_range, 0,
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(1ULL<<(20 - PAGE_SHIFT)) - 1);
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1ULL<<(20 - PAGE_SHIFT));
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/* Sort the ranges: */
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sort_range(range, nr_range);
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@ -939,9 +939,9 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
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nr_range = 0;
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if (mtrr_tom2) {
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range[nr_range].start = (1ULL<<(32 - PAGE_SHIFT));
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range[nr_range].end = (mtrr_tom2 >> PAGE_SHIFT) - 1;
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if (highest_pfn < range[nr_range].end + 1)
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highest_pfn = range[nr_range].end + 1;
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range[nr_range].end = mtrr_tom2 >> PAGE_SHIFT;
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if (highest_pfn < range[nr_range].end)
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highest_pfn = range[nr_range].end;
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nr_range++;
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}
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nr_range = x86_get_mtrr_mem_range(range, nr_range, 0, 0);
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@ -953,15 +953,15 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
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/* Check the holes: */
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for (i = 0; i < nr_range - 1; i++) {
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if (range[i].end + 1 < range[i+1].start)
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total_trim_size += real_trim_memory(range[i].end + 1,
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if (range[i].end < range[i+1].start)
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total_trim_size += real_trim_memory(range[i].end,
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range[i+1].start);
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}
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/* Check the top: */
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i = nr_range - 1;
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if (range[i].end + 1 < end_pfn)
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total_trim_size += real_trim_memory(range[i].end + 1,
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if (range[i].end < end_pfn)
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total_trim_size += real_trim_memory(range[i].end,
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end_pfn);
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if (total_trim_size) {
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@ -145,7 +145,7 @@ static int __init early_fill_mp_bus_info(void)
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def_link = (reg >> 8) & 0x03;
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memset(range, 0, sizeof(range));
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range[0].end = 0xffff;
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add_range(range, RANGE_NUM, 0, 0, 0xffff + 1);
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/* io port resource */
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for (i = 0; i < 4; i++) {
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reg = read_pci_config(bus, slot, 1, 0xc0 + (i << 3));
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@ -175,7 +175,7 @@ static int __init early_fill_mp_bus_info(void)
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if (end > 0xffff)
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end = 0xffff;
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update_res(info, start, end, IORESOURCE_IO, 1);
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subtract_range(range, RANGE_NUM, start, end);
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subtract_range(range, RANGE_NUM, start, end + 1);
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}
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/* add left over io port range to def node/link, [0, 0xffff] */
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/* find the position */
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@ -190,14 +190,16 @@ static int __init early_fill_mp_bus_info(void)
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if (!range[i].end)
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continue;
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update_res(info, range[i].start, range[i].end,
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update_res(info, range[i].start, range[i].end - 1,
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IORESOURCE_IO, 1);
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}
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}
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memset(range, 0, sizeof(range));
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/* 0xfd00000000-0xffffffffff for HT */
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range[0].end = cap_resource((0xfdULL<<32) - 1);
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end = cap_resource((0xfdULL<<32) - 1);
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end++;
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add_range(range, RANGE_NUM, 0, 0, end);
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/* need to take out [0, TOM) for RAM*/
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address = MSR_K8_TOP_MEM1;
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@ -205,14 +207,15 @@ static int __init early_fill_mp_bus_info(void)
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end = (val & 0xffffff800000ULL);
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printk(KERN_INFO "TOM: %016llx aka %lldM\n", end, end>>20);
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if (end < (1ULL<<32))
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subtract_range(range, RANGE_NUM, 0, end - 1);
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subtract_range(range, RANGE_NUM, 0, end);
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/* get mmconfig */
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get_pci_mmcfg_amd_fam10h_range();
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/* need to take out mmconf range */
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if (fam10h_mmconf_end) {
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printk(KERN_DEBUG "Fam 10h mmconf [%llx, %llx]\n", fam10h_mmconf_start, fam10h_mmconf_end);
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subtract_range(range, RANGE_NUM, fam10h_mmconf_start, fam10h_mmconf_end);
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subtract_range(range, RANGE_NUM, fam10h_mmconf_start,
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fam10h_mmconf_end + 1);
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}
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/* mmio resource */
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@ -267,7 +270,8 @@ static int __init early_fill_mp_bus_info(void)
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/* we got a hole */
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endx = fam10h_mmconf_start - 1;
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update_res(info, start, endx, IORESOURCE_MEM, 0);
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subtract_range(range, RANGE_NUM, start, endx);
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subtract_range(range, RANGE_NUM, start,
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endx + 1);
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printk(KERN_CONT " ==> [%llx, %llx]", start, endx);
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start = fam10h_mmconf_end + 1;
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changed = 1;
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@ -284,7 +288,7 @@ static int __init early_fill_mp_bus_info(void)
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update_res(info, cap_resource(start), cap_resource(end),
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IORESOURCE_MEM, 1);
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subtract_range(range, RANGE_NUM, start, end);
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subtract_range(range, RANGE_NUM, start, end + 1);
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printk(KERN_CONT "\n");
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}
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@ -299,7 +303,7 @@ static int __init early_fill_mp_bus_info(void)
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rdmsrl(address, val);
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end = (val & 0xffffff800000ULL);
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printk(KERN_INFO "TOM2: %016llx aka %lldM\n", end, end>>20);
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subtract_range(range, RANGE_NUM, 1ULL<<32, end - 1);
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subtract_range(range, RANGE_NUM, 1ULL<<32, end);
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}
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/*
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@ -319,7 +323,7 @@ static int __init early_fill_mp_bus_info(void)
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continue;
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update_res(info, cap_resource(range[i].start),
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cap_resource(range[i].end),
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cap_resource(range[i].end - 1),
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IORESOURCE_MEM, 1);
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}
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}
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@ -13,7 +13,7 @@
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int add_range(struct range *range, int az, int nr_range, u64 start, u64 end)
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{
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if (start > end)
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if (start >= end)
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return nr_range;
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/* Out of slots: */
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@ -33,7 +33,7 @@ int add_range_with_merge(struct range *range, int az, int nr_range,
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{
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int i;
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if (start > end)
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if (start >= end)
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return nr_range;
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/* Try to merge it with old one: */
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@ -46,7 +46,7 @@ int add_range_with_merge(struct range *range, int az, int nr_range,
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common_start = max(range[i].start, start);
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common_end = min(range[i].end, end);
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if (common_start > common_end + 1)
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if (common_start > common_end)
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continue;
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final_start = min(range[i].start, start);
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@ -65,7 +65,7 @@ void subtract_range(struct range *range, int az, u64 start, u64 end)
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{
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int i, j;
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if (start > end)
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if (start >= end)
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return;
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for (j = 0; j < az; j++) {
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@ -79,15 +79,15 @@ void subtract_range(struct range *range, int az, u64 start, u64 end)
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}
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if (start <= range[j].start && end < range[j].end &&
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range[j].start < end + 1) {
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range[j].start = end + 1;
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range[j].start < end) {
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range[j].start = end;
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continue;
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}
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if (start > range[j].start && end >= range[j].end &&
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range[j].end > start - 1) {
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range[j].end = start - 1;
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range[j].end > start) {
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range[j].end = start;
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continue;
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}
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@ -99,11 +99,11 @@ void subtract_range(struct range *range, int az, u64 start, u64 end)
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}
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if (i < az) {
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range[i].end = range[j].end;
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range[i].start = end + 1;
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range[i].start = end;
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} else {
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printk(KERN_ERR "run of slot in ranges\n");
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}
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range[j].end = start - 1;
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range[j].end = start;
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continue;
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}
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}
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