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mm_drv: tlb: Fix driver tests

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Previous fix https://github.com/zephyrproject-rtos/zephyr/pull/58891
introduced failure in driver tests suite. This patch corrects the error
and reverts max_mapped_page field definition.
Adds max_mapped_pages stats reset after unmaping of unused memory.

Signed-off-by: Jaroslaw Stelter <Jaroslaw.Stelter@intel.com>
This commit is contained in:
Jaroslaw Stelter 2023-06-21 12:43:20 +02:00 • committed by Anas Nashif
commit 225e8c09ac
3 changed files with 15 additions and 5 deletions
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6
drivers/mm/mm_drv_bank.c
View file

@ -15,7 +15,6 @@
*/
#include <zephyr/kernel.h>
#include <zephyr/sys/__assert.h>
#include <zephyr/drivers/mm/mm_drv_bank.h>
#include <zephyr/sys/mem_stats.h>
@ -30,7 +29,9 @@ uint32_t sys_mm_drv_bank_page_mapped(struct mem_drv_bank *bank)
{
bank->unmapped_pages--;
bank->mapped_pages++;
__ASSERT_NO_MSG(bank->mapped_pages <= bank->max_mapped_pages);
if (bank->mapped_pages > bank->max_mapped_pages) {
bank->max_mapped_pages = bank->mapped_pages;
}
return bank->mapped_pages;
}
@ -38,7 +39,6 @@ uint32_t sys_mm_drv_bank_page_unmapped(struct mem_drv_bank *bank)
{
bank->unmapped_pages++;
bank->mapped_pages--;
__ASSERT_NO_MSG(bank->unmapped_pages <= bank->max_mapped_pages);
return bank->unmapped_pages;
}

5
drivers/mm/mm_drv_intel_adsp_mtl_tlb.c
View file

@ -678,6 +678,11 @@ static int sys_mm_drv_mm_init(const struct device *dev)
ret = sys_mm_drv_unmap_region(UINT_TO_POINTER(UNUSED_L2_START_ALIGNED),
unused_size);
/* Need to reset max pages statistics after unmap */
for (int i = 0; i < L2_SRAM_BANK_NUM; i++) {
sys_mm_drv_bank_stats_reset_max(&hpsram_bank[i]);
}
#endif
/*

9
tests/drivers/mm/sys_mm_drv_bank/src/main.c
View file

@ -39,10 +39,17 @@ ZTEST(sys_mm_bank_api, test_sys_mm_drv_bank)
/* Verify that the initialization routine works as expected. */
/* It set mapped state for all pages */
sys_mm_drv_bank_init(&bank_data, BANK_PAGES);
expected.free_bytes = EXPECTED(0);
expected.allocated_bytes = EXPECTED(BANK_PAGES);
expected.max_allocated_bytes = EXPECTED(BANK_PAGES);
sys_mm_drv_bank_stats_get(&bank_data, &stats);
test_stats("MM Bank Init Error", &stats, &expected);
/* Now unmap all pages */
for (index = 0; index < BANK_PAGES; index++) {
sys_mm_drv_bank_page_unmapped(&bank_data);
}
sys_mm_drv_bank_stats_reset_max(&bank_data);
expected.free_bytes = EXPECTED(BANK_PAGES);
expected.allocated_bytes = EXPECTED(0);
@ -51,7 +58,6 @@ ZTEST(sys_mm_bank_api, test_sys_mm_drv_bank)
test_stats("MM Bank Init Error", &stats, &expected);
/* Verify mapped pages are counted correctly */
count = sys_mm_drv_bank_page_mapped(&bank_data);
zassert_equal(count, 1,
"MM Page Mapped Error: 1st mapped = %u, not %u\n",
@ -121,7 +127,6 @@ ZTEST(sys_mm_bank_api, test_sys_mm_drv_bank)
expected.max_allocated_bytes = EXPECTED(2);
sys_mm_drv_bank_stats_get(&bank_data, &stats);
test_stats("MM Bank Reset Max Error", &stats, &expected);
}
ZTEST_SUITE(sys_mm_bank_api, NULL, NULL, NULL, NULL, NULL);