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drm/amdgpu: Fetch NPS mode for GCv9.4.3 VFs

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Use the memory ranges published in discovery table to deduce NPS mode
of GC v9.4.3 VFs.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Vignesh Chander <Vignesh.Chander@amd.com>
Tested-by: Vignesh Chander <Vignesh.Chander@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar
2024-09-13 17:17:19 +05:30
committed by Alex Deucher
parent 40f2cd9882
commit b3c6871692
3 changed files with 36 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View File

@@ -1244,14 +1244,14 @@ void amdgpu_gmc_sysfs_fini(struct amdgpu_device *adev)
int amdgpu_gmc_get_nps_memranges(struct amdgpu_device *adev,
struct amdgpu_mem_partition_info *mem_ranges,
int exp_ranges)
uint8_t *exp_ranges)
{
struct amdgpu_gmc_memrange *ranges;
int range_cnt, ret, i, j;
uint32_t nps_type;
bool refresh;
if (!mem_ranges)
if (!mem_ranges || !exp_ranges)
return -EINVAL;
refresh = (adev->init_lvl->level != AMDGPU_INIT_LEVEL_MINIMAL_XGMI) &&
@@ -1265,16 +1265,16 @@ int amdgpu_gmc_get_nps_memranges(struct amdgpu_device *adev,
/* TODO: For now, expect ranges and partition count to be the same.
* Adjust if there are holes expected in any NPS domain.
*/
if (range_cnt != exp_ranges) {
if (*exp_ranges && (range_cnt != *exp_ranges)) {
dev_warn(
adev->dev,
"NPS config mismatch - expected ranges: %d discovery - nps mode: %d, nps ranges: %d",
exp_ranges, nps_type, range_cnt);
*exp_ranges, nps_type, range_cnt);
ret = -EINVAL;
goto err;
}
for (i = 0; i < exp_ranges; ++i) {
for (i = 0; i < range_cnt; ++i) {
if (ranges[i].base_address >= ranges[i].limit_address) {
dev_warn(
adev->dev,
@@ -1315,6 +1315,8 @@ int amdgpu_gmc_get_nps_memranges(struct amdgpu_device *adev,
ranges[i].limit_address - ranges[i].base_address + 1;
}
if (!*exp_ranges)
*exp_ranges = range_cnt;
err:
kfree(ranges);