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Date: Thu, 18 Aug 2022 23:22:47 -0700
From: Rebecca Mckeever <remckee0@...il.com>
To: "Huang, Shaoqin" <shaoqin.huang@...el.com>
Cc: Mike Rapoport <rppt@...nel.org>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org, David Hildenbrand <david@...hat.com>
Subject: Re: [PATCH 6/8] memblock tests: update alloc_nid_api to test
memblock_alloc_try_nid_raw
On Tue, Aug 16, 2022 at 09:24:53AM +0800, Huang, Shaoqin wrote:
>
>
> On 8/14/2022 1:53 PM, Rebecca Mckeever wrote:
> > Update memblock_alloc_try_nid() tests so that they test either
> > memblock_alloc_try_nid() or memblock_alloc_try_nid_raw() depending on the
> > value of alloc_nid_test_flags. Run through all the existing tests in
> > alloc_nid_api twice: once for memblock_alloc_try_nid() and once for
> > memblock_alloc_try_nid_raw().
> >
> > When the tests run memblock_alloc_try_nid(), they test that the entire
> > memory region is zero. When the tests run memblock_alloc_try_nid_raw(),
> > they test that the entire memory region is nonzero.
> >
> > Signed-off-by: Rebecca Mckeever <remckee0@...il.com>
> > ---
> > tools/testing/memblock/tests/alloc_nid_api.c | 196 ++++++++++++-------
> > 1 file changed, 127 insertions(+), 69 deletions(-)
> >
> > diff --git a/tools/testing/memblock/tests/alloc_nid_api.c b/tools/testing/memblock/tests/alloc_nid_api.c
> > index 82fa8ea36320..e16106d8446b 100644
> > --- a/tools/testing/memblock/tests/alloc_nid_api.c
> > +++ b/tools/testing/memblock/tests/alloc_nid_api.c
> > @@ -1,6 +1,42 @@
> > // SPDX-License-Identifier: GPL-2.0-or-later
> > #include "alloc_nid_api.h"
> > +static const char * const func_testing[] = {
> > + "memblock_alloc_try_nid",
> > + "memblock_alloc_try_nid_raw"
> > +};
> > +
> > +static int alloc_nid_test_flags = TEST_ZEROED;
> > +
> > +static inline const char * const get_func_testing(int flags)
> > +{
> > + if (flags & TEST_RAW)
> > + return func_testing[1];
> > + else
> > + return func_testing[0];
> > +}
> > +
> > +static inline void *run_memblock_alloc_try_nid(phys_addr_t size,
> > + phys_addr_t align,
> > + phys_addr_t min_addr,
> > + phys_addr_t max_addr, int nid)
> > +{
> > + if (alloc_nid_test_flags & TEST_RAW)
> > + return memblock_alloc_try_nid_raw(size, align, min_addr,
> > + max_addr, nid);
> > + else
> > + return memblock_alloc_try_nid(size, align, min_addr,
> > + max_addr, nid);
> > +}
> > +
> > +static inline void verify_mem_content(void *mem, int size)
> > +{
> > + if (alloc_nid_test_flags & TEST_RAW)
> > + ASSERT_MEM_NE((char *)mem, 0, size);
> > + else
> > + ASSERT_MEM_EQ((char *)mem, 0, size);
> > +}
> > +
>
> These static functions seems the same with the PATCH5 did, have you
> considered to keep only one common function?
>
I considered it. The function will need to have a flags parameter added
to it if the definition is moved to common.h. I will make this change.
> > /*
> > * A simple test that tries to allocate a memory region within min_addr and
> > * max_addr range:
> > @@ -32,12 +68,13 @@ static int alloc_try_nid_top_down_simple_check(void)
> > min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES * 2;
> > max_addr = min_addr + SZ_512;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > rgn_end = rgn->base + rgn->size;
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, max_addr - size);
> > @@ -86,12 +123,13 @@ static int alloc_try_nid_top_down_end_misaligned_check(void)
> > min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES * 2;
> > max_addr = min_addr + SZ_512 + misalign;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > rgn_end = rgn->base + rgn->size;
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, max_addr - size - misalign);
> > @@ -137,12 +175,13 @@ static int alloc_try_nid_exact_address_generic_check(void)
> > min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES;
> > max_addr = min_addr + size;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > rgn_end = rgn->base + rgn->size;
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, min_addr);
> > @@ -189,11 +228,12 @@ static int alloc_try_nid_top_down_narrow_range_check(void)
> > min_addr = memblock_start_of_DRAM() + SZ_512;
> > max_addr = min_addr + SMP_CACHE_BYTES;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, max_addr - size);
> > @@ -241,8 +281,9 @@ static int alloc_try_nid_low_max_generic_check(void)
> > min_addr = memblock_start_of_DRAM();
> > max_addr = min_addr + SMP_CACHE_BYTES;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_EQ(allocated_ptr, NULL);
> > @@ -287,11 +328,12 @@ static int alloc_try_nid_min_reserved_generic_check(void)
> > memblock_reserve(reserved_base, r1_size);
> > - allocated_ptr = memblock_alloc_try_nid(r2_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r2_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r2_size);
> > + verify_mem_content(allocated_ptr, r2_size);
> > ASSERT_EQ(rgn->size, total_size);
> > ASSERT_EQ(rgn->base, reserved_base);
> > @@ -338,11 +380,12 @@ static int alloc_try_nid_max_reserved_generic_check(void)
> > memblock_reserve(max_addr, r1_size);
> > - allocated_ptr = memblock_alloc_try_nid(r2_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r2_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r2_size);
> > + verify_mem_content(allocated_ptr, r2_size);
> > ASSERT_EQ(rgn->size, total_size);
> > ASSERT_EQ(rgn->base, min_addr);
> > @@ -402,11 +445,12 @@ static int alloc_try_nid_top_down_reserved_with_space_check(void)
> > memblock_reserve(r1.base, r1.size);
> > memblock_reserve(r2.base, r2.size);
> > - allocated_ptr = memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size);
> > + verify_mem_content(allocated_ptr, r3_size);
> > ASSERT_EQ(rgn1->size, r1.size + r3_size);
> > ASSERT_EQ(rgn1->base, max_addr - r3_size);
> > @@ -466,11 +510,12 @@ static int alloc_try_nid_reserved_full_merge_generic_check(void)
> > memblock_reserve(r1.base, r1.size);
> > memblock_reserve(r2.base, r2.size);
> > - allocated_ptr = memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size);
> > + verify_mem_content(allocated_ptr, r3_size);
> > ASSERT_EQ(rgn->size, total_size);
> > ASSERT_EQ(rgn->base, r2.base);
> > @@ -531,11 +576,12 @@ static int alloc_try_nid_top_down_reserved_no_space_check(void)
> > memblock_reserve(r1.base, r1.size);
> > memblock_reserve(r2.base, r2.size);
> > - allocated_ptr = memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size);
> > + verify_mem_content(allocated_ptr, r3_size);
> > ASSERT_EQ(rgn1->size, r1.size);
> > ASSERT_EQ(rgn1->base, r1.base);
> > @@ -597,8 +643,9 @@ static int alloc_try_nid_reserved_all_generic_check(void)
> > memblock_reserve(r1.base, r1.size);
> > memblock_reserve(r2.base, r2.size);
> > - allocated_ptr = memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_EQ(allocated_ptr, NULL);
> > @@ -628,11 +675,12 @@ static int alloc_try_nid_top_down_cap_max_check(void)
> > min_addr = memblock_end_of_DRAM() - SZ_1K;
> > max_addr = memblock_end_of_DRAM() + SZ_256;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - size);
> > @@ -666,11 +714,12 @@ static int alloc_try_nid_top_down_cap_min_check(void)
> > min_addr = memblock_start_of_DRAM() - SZ_256;
> > max_addr = memblock_end_of_DRAM();
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr, NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, memblock_end_of_DRAM() - size);
> > @@ -714,13 +763,13 @@ static int alloc_try_nid_bottom_up_simple_check(void)
> > min_addr = memblock_start_of_DRAM() + SMP_CACHE_BYTES * 2;
> > max_addr = min_addr + SZ_512;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr,
> > - NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > rgn_end = rgn->base + rgn->size;
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, min_addr);
> > @@ -769,13 +818,13 @@ static int alloc_try_nid_bottom_up_start_misaligned_check(void)
> > min_addr = memblock_start_of_DRAM() + misalign;
> > max_addr = min_addr + SZ_512;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr,
> > - NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > rgn_end = rgn->base + rgn->size;
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, min_addr + (SMP_CACHE_BYTES - misalign));
> > @@ -822,12 +871,12 @@ static int alloc_try_nid_bottom_up_narrow_range_check(void)
> > min_addr = memblock_start_of_DRAM() + SZ_512;
> > max_addr = min_addr + SMP_CACHE_BYTES;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr,
> > - NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
> > @@ -887,12 +936,12 @@ static int alloc_try_nid_bottom_up_reserved_with_space_check(void)
> > memblock_reserve(r1.base, r1.size);
> > memblock_reserve(r2.base, r2.size);
> > - allocated_ptr = memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr,
> > - NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size);
> > + verify_mem_content(allocated_ptr, r3_size);
> > ASSERT_EQ(rgn1->size, r1.size);
> > ASSERT_EQ(rgn1->base, max_addr);
> > @@ -959,12 +1008,12 @@ static int alloc_try_nid_bottom_up_reserved_no_space_check(void)
> > memblock_reserve(r1.base, r1.size);
> > memblock_reserve(r2.base, r2.size);
> > - allocated_ptr = memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > - min_addr, max_addr,
> > - NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(r3_size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, r3_size);
> > + verify_mem_content(allocated_ptr, r3_size);
> > ASSERT_EQ(rgn3->size, r3_size);
> > ASSERT_EQ(rgn3->base, memblock_start_of_DRAM());
> > @@ -1004,12 +1053,12 @@ static int alloc_try_nid_bottom_up_cap_max_check(void)
> > min_addr = memblock_start_of_DRAM() + SZ_1K;
> > max_addr = memblock_end_of_DRAM() + SZ_256;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr,
> > - NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, min_addr);
> > @@ -1043,12 +1092,12 @@ static int alloc_try_nid_bottom_up_cap_min_check(void)
> > min_addr = memblock_start_of_DRAM();
> > max_addr = memblock_end_of_DRAM() - SZ_256;
> > - allocated_ptr = memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > - min_addr, max_addr,
> > - NUMA_NO_NODE);
> > + allocated_ptr = run_memblock_alloc_try_nid(size, SMP_CACHE_BYTES,
> > + min_addr, max_addr,
> > + NUMA_NO_NODE);
> > ASSERT_NE(allocated_ptr, NULL);
> > - ASSERT_MEM_EQ((char *)allocated_ptr, 0, size);
> > + verify_mem_content(allocated_ptr, size);
> > ASSERT_EQ(rgn->size, size);
> > ASSERT_EQ(rgn->base, memblock_start_of_DRAM());
> > @@ -1193,13 +1242,14 @@ static int alloc_try_nid_low_max_check(void)
> > return 0;
> > }
> > -int memblock_alloc_nid_checks(void)
> > +static int memblock_alloc_nid_checks_internal(int flags)
> > {
> > - const char *func_testing = "memblock_alloc_try_nid";
> > + const char *func = get_func_testing(flags);
> > + alloc_nid_test_flags = flags;
> > prefix_reset();
> > - prefix_push(func_testing);
> > - test_print("Running %s tests...\n", func_testing);
> > + prefix_push(func);
> > + test_print("Running %s tests...\n", func);
> > reset_memblock_attributes();
> > dummy_physical_memory_init();
> > @@ -1225,3 +1275,11 @@ int memblock_alloc_nid_checks(void)
> > return 0;
> > }
> > +
> > +int memblock_alloc_nid_checks(void)
> > +{
> > + memblock_alloc_nid_checks_internal(TEST_ZEROED);
> > + memblock_alloc_nid_checks_internal(TEST_RAW);
> > +
> > + return 0;
> > +}
Thanks,
Rebecca
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