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linux: dma-test-common: Add SWITS Stop and Abort tests

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Exisintg Abort and STOP tests hardcodes usage of all channels.
In SWITS scope, prepare tests to use single channel DMA.

JIRA NET-2991

Change-Id: I62464714bfd359ad141bcb8df8316e703e95d591
Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3323878
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Nagarjuna Kristam
2025-03-21 16:37:55 +05:30
committed by Jon Hunter
parent 56278bff69
commit 8759302687
1 changed files with 22 additions and 2 deletions
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24
include/linux/tegra-pcie-edma-test-common.h
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@@ -2,7 +2,7 @@
/* /*
* PCIe DMA EPF Library for Tegra PCIe * PCIe DMA EPF Library for Tegra PCIe
* *
* Copyright (C) 2022-2024 NVIDIA Corporation. All rights reserved. * Copyright (C) 2022-2025 NVIDIA Corporation. All rights reserved.
*/ */
#ifndef TEGRA_PCIE_EDMA_TEST_COMMON_H #ifndef TEGRA_PCIE_EDMA_TEST_COMMON_H
@@ -32,6 +32,8 @@ static inline void dma_common_wr(void __iomem *p, u32 val, u32 offset)
#define EDMA_UNALIGN_SRC_TEST_EN (edma->edma_ch & 0x02000000) #define EDMA_UNALIGN_SRC_TEST_EN (edma->edma_ch & 0x02000000)
#define EDMA_UNALIGN_DST_TEST_EN (edma->edma_ch & 0x01000000) #define EDMA_UNALIGN_DST_TEST_EN (edma->edma_ch & 0x01000000)
#define EDMA_UNALIGN_SRC_DST_TEST_EN (edma->edma_ch & 0x00800000) #define EDMA_UNALIGN_SRC_DST_TEST_EN (edma->edma_ch & 0x00800000)
#define DMA_ABORT_SWITS_TEST_EN (edma->edma_ch & 0x00400000)
#define DMA_STOP_SWITS_TEST_EN (edma->edma_ch & 0x00200000)
#define IS_EDMA_CH_ENABLED(i) (edma->edma_ch & ((BIT(i) << 4))) #define IS_EDMA_CH_ENABLED(i) (edma->edma_ch & ((BIT(i) << 4)))
#define IS_EDMA_CH_ASYNC(i) (edma->edma_ch & BIT(i)) #define IS_EDMA_CH_ASYNC(i) (edma->edma_ch & BIT(i))
#define EDMA_PERF (edma->tsz / (diff / 1000)) #define EDMA_PERF (edma->tsz / (diff / 1000))
@@ -199,6 +201,11 @@ static int edmalib_common_test(struct edmalib_common *edma)
l_edma = edma; l_edma = edma;
if (DMA_ABORT_SWITS_TEST_EN || DMA_STOP_SWITS_TEST_EN) {
edma->edma_ch &= ~0xFF;
/* All channels in ASYNC, where chan 2 async gets aborted */
edma->edma_ch |= 0x11;
}
if (EDMA_ABORT_TEST_EN || EDMA_STOP_TEST_EN) { if (EDMA_ABORT_TEST_EN || EDMA_STOP_TEST_EN) {
edma->edma_ch &= ~0xFF; edma->edma_ch &= ~0xFF;
/* All channels in ASYNC, where chan 2 async gets aborted */ /* All channels in ASYNC, where chan 2 async gets aborted */
@@ -373,7 +380,7 @@ static int edmalib_common_test(struct edmalib_common *edma)
edma->tsz = (u64)edma->stress_count * (nents_per_ch) * (u64)edma->dma_size * 8UL; edma->tsz = (u64)edma->stress_count * (nents_per_ch) * (u64)edma->dma_size * 8UL;
if (!edma->cookie || (edma->prev_edma_ch != edma->edma_ch)) { if (!edma->cookie || ((edma->prev_edma_ch & 0xFF) != edma->edma_ch)) {
dev_info(edma->fdev, "%s: re-init edma lib prev_ch(%x) != current chans(%x)\n", dev_info(edma->fdev, "%s: re-init edma lib prev_ch(%x) != current chans(%x)\n",
__func__, edma->prev_edma_ch, edma->edma_ch); __func__, edma->prev_edma_ch, edma->edma_ch);
ret = tegra_pcie_dma_initialize(&info, &edma->cookie); ret = tegra_pcie_dma_initialize(&info, &edma->cookie);
@@ -431,6 +438,12 @@ static int edmalib_common_test(struct edmalib_common *edma)
(((u64)l_r) << EDMA_PRIV_LR_OFF) | (((u64)l_r) << EDMA_PRIV_LR_OFF) |
(((u64)ch) << EDMA_PRIV_CH_OFF); (((u64)ch) << EDMA_PRIV_CH_OFF);
tx_info.priv = &edma->priv_iter[ch]; tx_info.priv = &edma->priv_iter[ch];
/* Set second desc as 0 to trigger DECERR for T264 */
if (DMA_ABORT_SWITS_TEST_EN && (k == 1) &&
(edma->chip_id == NVPCIE_DMA_SOC_T264)) {
dev_info(edma->fdev, "Configuring Src DMA as 0 to trigger DECERR\n");
tx_info.desc[0].src = 0;
}
ret = tegra_pcie_dma_submit_xfer(edma->cookie, &tx_info); ret = tegra_pcie_dma_submit_xfer(edma->cookie, &tx_info);
if (ret == TEGRA_PCIE_DMA_FAIL_NOMEM) { if (ret == TEGRA_PCIE_DMA_FAIL_NOMEM) {
/** Retry after 20 msec */ /** Retry after 20 msec */
@@ -463,6 +476,13 @@ static int edmalib_common_test(struct edmalib_common *edma)
dev_dbg(edma->fdev, "%s: LL EDMA LIB %d, SZ: %u B CH: %d iter %d\n", dev_dbg(edma->fdev, "%s: LL EDMA LIB %d, SZ: %u B CH: %d iter %d\n",
__func__, xfer_type, edma->dma_size, ch, i); __func__, xfer_type, edma->dma_size, ch, i);
} }
if (DMA_STOP_SWITS_TEST_EN) {
bool stop_status;
stop_status = tegra_pcie_dma_stop(edma->cookie);
dev_info(edma->fdev, "%s: EDMA LIB, status of stop DMA is %d", __func__,
stop_status);
}
if (i == 2) { if (i == 2) {
if (EDMA_ABORT_TEST_EN) { if (EDMA_ABORT_TEST_EN) {
msleep(edma->stress_count); msleep(edma->stress_count);