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// SPDX-License-Identifier: GPL-2.0 AND MIT
/*
* Copyright © 2022 Intel Corporation
*/
#include <kunit/test.h>
#include <kunit/visibility.h>
#include "tests/xe_mocs_test.h"
#include "tests/xe_pci_test.h"
#include "tests/xe_test.h"
#include "xe_pci.h"
#include "xe_gt.h"
#include "xe_mocs.h"
#include "xe_device.h"
struct live_mocs {
struct xe_mocs_info table;
};
static int live_mocs_init(struct live_mocs *arg, struct xe_gt *gt)
{
unsigned int flags;
struct kunit *test = xe_cur_kunit();
memset(arg, 0, sizeof(*arg));
flags = get_mocs_settings(gt_to_xe(gt), &arg->table);
kunit_info(test, "table size %d", arg->table.size);
kunit_info(test, "table uc_index %d", arg->table.uc_index);
kunit_info(test, "table n_entries %d", arg->table.n_entries);
return flags;
}
static void read_l3cc_table(struct xe_gt *gt,
const struct xe_mocs_info *info)
{
unsigned int i;
u32 l3cc;
u32 reg_val;
u32 ret;
struct kunit *test = xe_cur_kunit();
xe_device_mem_access_get(gt_to_xe(gt));
ret = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
KUNIT_ASSERT_EQ_MSG(test, ret, 0, "Forcewake Failed.\n");
mocs_dbg(>_to_xe(gt)->drm, "L3CC entries:%d\n", info->n_entries);
for (i = 0;
i < (info->n_entries + 1) / 2 ?
(l3cc = l3cc_combine(get_entry_l3cc(info, 2 * i),
get_entry_l3cc(info, 2 * i + 1))), 1 : 0;
i++) {
if (GRAPHICS_VERx100(gt_to_xe(gt)) >= 1250)
reg_val = xe_gt_mcr_unicast_read_any(gt, XEHP_LNCFCMOCS(i));
else
reg_val = xe_mmio_read32(gt, XELP_LNCFCMOCS(i));
mocs_dbg(>_to_xe(gt)->drm, "%d 0x%x 0x%x 0x%x\n", i,
XELP_LNCFCMOCS(i).addr, reg_val, l3cc);
if (reg_val != l3cc)
KUNIT_FAIL(test, "l3cc reg 0x%x has incorrect val.\n",
XELP_LNCFCMOCS(i).addr);
}
xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
xe_device_mem_access_put(gt_to_xe(gt));
}
static void read_mocs_table(struct xe_gt *gt,
const struct xe_mocs_info *info)
{
struct xe_device *xe = gt_to_xe(gt);
unsigned int i;
u32 mocs;
u32 reg_val;
u32 ret;
struct kunit *test = xe_cur_kunit();
xe_device_mem_access_get(gt_to_xe(gt));
ret = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
KUNIT_ASSERT_EQ_MSG(test, ret, 0, "Forcewake Failed.\n");
mocs_dbg(>_to_xe(gt)->drm, "Global MOCS entries:%d\n", info->n_entries);
drm_WARN_ONCE(&xe->drm, !info->unused_entries_index,
"Unused entries index should have been defined\n");
for (i = 0;
i < info->n_entries ? (mocs = get_entry_control(info, i)), 1 : 0;
i++) {
if (GRAPHICS_VERx100(gt_to_xe(gt)) >= 1250)
reg_val = xe_gt_mcr_unicast_read_any(gt, XEHP_GLOBAL_MOCS(i));
else
reg_val = xe_mmio_read32(gt, XELP_GLOBAL_MOCS(i));
mocs_dbg(>_to_xe(gt)->drm, "%d 0x%x 0x%x 0x%x\n", i,
XELP_GLOBAL_MOCS(i).addr, reg_val, mocs);
if (reg_val != mocs)
KUNIT_FAIL(test, "mocs reg 0x%x has incorrect val.\n",
XELP_GLOBAL_MOCS(i).addr);
}
xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
xe_device_mem_access_put(gt_to_xe(gt));
}
static int mocs_kernel_test_run_device(struct xe_device *xe)
{
/* Basic check the system is configured with the expected mocs table */
struct live_mocs mocs;
struct xe_gt *gt;
unsigned int flags;
int id;
for_each_gt(gt, xe, id) {
flags = live_mocs_init(&mocs, gt);
if (flags & HAS_GLOBAL_MOCS)
read_mocs_table(gt, &mocs.table);
if (flags & HAS_LNCF_MOCS)
read_l3cc_table(gt, &mocs.table);
}
return 0;
}
void xe_live_mocs_kernel_kunit(struct kunit *test)
{
xe_call_for_each_device(mocs_kernel_test_run_device);
}
EXPORT_SYMBOL_IF_KUNIT(xe_live_mocs_kernel_kunit);
static int mocs_reset_test_run_device(struct xe_device *xe)
{
/* Check the mocs setup is retained over GT reset */
struct live_mocs mocs;
struct xe_gt *gt;
unsigned int flags;
int id;
struct kunit *test = xe_cur_kunit();
for_each_gt(gt, xe, id) {
flags = live_mocs_init(&mocs, gt);
kunit_info(test, "mocs_reset_test before reset\n");
if (flags & HAS_GLOBAL_MOCS)
read_mocs_table(gt, &mocs.table);
if (flags & HAS_LNCF_MOCS)
read_l3cc_table(gt, &mocs.table);
xe_gt_reset_async(gt);
flush_work(>->reset.worker);
kunit_info(test, "mocs_reset_test after reset\n");
if (flags & HAS_GLOBAL_MOCS)
read_mocs_table(gt, &mocs.table);
if (flags & HAS_LNCF_MOCS)
read_l3cc_table(gt, &mocs.table);
}
return 0;
}
void xe_live_mocs_reset_kunit(struct kunit *test)
{
xe_call_for_each_device(mocs_reset_test_run_device);
}
EXPORT_SYMBOL_IF_KUNIT(xe_live_mocs_reset_kunit);
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