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gpu: nvgpu: unit: falcon memory scrub test

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Add unit test for function nvgpu_falcon_mem_scrub_wait.

JIRA NVGPU-898

Change-Id: Id78360ce744ac18e06bed3df9a7826db40a0a2d6
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2160239
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Sagar Kamble
2019-01-04 11:04:21 +05:30
committed by mobile promotions
parent 4c89ec1cdf
commit a6f2dd2451
2 changed files with 53 additions and 0 deletions
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1
drivers/gpu/nvgpu/libnvgpu-drv_safe.export
View File

@@ -81,6 +81,7 @@ nvgpu_dma_unmap_free
nvgpu_falcon_copy_to_dmem
nvgpu_falcon_copy_to_imem
nvgpu_falcon_get_instance
nvgpu_falcon_mem_scrub_wait
nvgpu_falcon_reset
nvgpu_falcon_sw_free
nvgpu_falcon_sw_init

52
userspace/units/falcon/falcon/falcon.c
View File

@@ -20,6 +20,8 @@
* DEALINGS IN THE SOFTWARE.
*/
#include <pthread.h>
#include <unit/unit.h>
#include <unit/io.h>
@@ -329,6 +331,19 @@ static int flcn_reset_state_check(void *data)
return -1;
}
static void flcn_mem_scrub_fail(void *data)
{
struct nvgpu_falcon *flcn = (struct nvgpu_falcon *) data;
u32 dmactl_addr = flcn->flcn_base + falcon_falcon_dmactl_r();
struct gk20a *g = flcn->g;
u32 unit_status;
unit_status = nvgpu_posix_io_readl_reg_space(g, dmactl_addr);
unit_status |= (falcon_falcon_dmactl_dmem_scrubbing_m() |
falcon_falcon_dmactl_imem_scrubbing_m());
nvgpu_posix_io_writel_reg_space(g, dmactl_addr, unit_status);
}
/*
* Valid: Reset of initialized Falcon succeeds and if not backed by engine
* dependent reset then check CPU control register for bit
@@ -376,6 +391,42 @@ static int test_falcon_reset(struct unit_module *m, struct gk20a *g,
return UNIT_SUCCESS;
}
/*
* Invalid: Calling this interface on uninitialized falcon should
* return -EINVAL.
* Valid: Set the mem scrubbing status as done and call should return 0.
* Set the mem scrubbing status as pending and call should return
* -ETIMEDOUT.
*/
static int test_falcon_mem_scrub(struct unit_module *m, struct gk20a *g,
void *__args)
{
struct {
struct nvgpu_falcon *flcn;
void (*pre_scrub)(void *);
int exp_err;
} test_data[] = {{uninit_flcn, NULL, -EINVAL},
{gpccs_flcn, flcn_mem_scrub_pass, 0},
{gpccs_flcn, flcn_mem_scrub_fail, -ETIMEDOUT} };
int size = ARRAY_SIZE(test_data);
int err, i;
for (i = 0; i < size; i++) {
if (test_data[i].pre_scrub) {
test_data[i].pre_scrub(test_data[i].flcn);
}
err = nvgpu_falcon_mem_scrub_wait(test_data[i].flcn);
if (err != test_data[i].exp_err) {
unit_return_fail(m, "falcon mem scrub err: %d "
"expected err: %d\n",
err, test_data[i].exp_err);
}
}
return UNIT_SUCCESS;
}
/*
* Valid/Invalid: Status of read and write from Falcon
* Valid: Read and write from initialized Falcon succeeds.
@@ -558,6 +609,7 @@ static int test_falcon_mem_rw_zero(struct unit_module *m, struct gk20a *g,
struct unit_module_test falcon_tests[] = {
UNIT_TEST(falcon_sw_init_free, test_falcon_sw_init_free, NULL, 0),
UNIT_TEST(falcon_reset, test_falcon_reset, NULL, 0),
UNIT_TEST(falcon_mem_scrub, test_falcon_mem_scrub, NULL, 0),
UNIT_TEST(falcon_mem_rw_init, test_falcon_mem_rw_init, NULL, 0),
UNIT_TEST(falcon_mem_rw_range, test_falcon_mem_rw_range, NULL, 0),
UNIT_TEST(falcon_mem_rw_aligned, test_falcon_mem_rw_aligned, NULL, 0),