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ac/gpu_info: add PCIe info

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Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20790>
This commit is contained in:
Marek Olšák
2022-12-30 17:02:57 -05:00
committed by Marge Bot
parent e267b86d80
commit e2d63c9a62
2 changed files with 36 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/amd/common/ac_gpu_info.c
+33
View File
@@ -1356,6 +1356,36 @@ bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info)
info->max_gflops = (info->gfx_level >= GFX11 ? 256 : 128) * info->num_cu * info->max_gpu_freq_mhz / 1000;
info->memory_bandwidth_gbps = DIV_ROUND_UP(info->memory_freq_mhz_effective * info->memory_bus_width / 8, 1000);
if (info->drm_minor >= 51) {
info->pcie_gen = device_info.pcie_gen;
info->pcie_num_lanes = device_info.pcie_num_lanes;
/* Source: https://en.wikipedia.org/wiki/PCI_Express#History_and_revisions */
switch (info->pcie_gen) {
case 1:
info->pcie_bandwidth_mbps = info->pcie_num_lanes * 0.25 * 1024;
break;
case 2:
info->pcie_bandwidth_mbps = info->pcie_num_lanes * 0.5 * 1024;
break;
case 3:
info->pcie_bandwidth_mbps = info->pcie_num_lanes * 0.985 * 1024;
break;
case 4:
info->pcie_bandwidth_mbps = info->pcie_num_lanes * 1.969 * 1024;
break;
case 5:
info->pcie_bandwidth_mbps = info->pcie_num_lanes * 3.938 * 1024;
break;
case 6:
info->pcie_bandwidth_mbps = info->pcie_num_lanes * 7.563 * 1024;
break;
case 7:
info->pcie_bandwidth_mbps = info->pcie_num_lanes * 15.125 * 1024;
break;
}
}
if (info->gfx_level >= GFX10_3 && info->has_dedicated_vram) {
info->l3_cache_size_mb = info->num_tcc_blocks *
(info->family == CHIP_NAVI21 ||
@@ -1451,6 +1481,9 @@ void ac_print_gpu_info(struct radeon_info *info, FILE *f)
fprintf(f, " memory_freq = %u GHz\n", DIV_ROUND_UP(info->memory_freq_mhz_effective, 1000));
fprintf(f, " memory_bus_width = %u bits\n", info->memory_bus_width);
fprintf(f, " memory_bandwidth = %u GB/s\n", info->memory_bandwidth_gbps);
fprintf(f, " pcie_gen = %u\n", info->pcie_gen);
fprintf(f, " pcie_num_lanes = %u\n", info->pcie_num_lanes);
fprintf(f, " pcie_bandwidth = %1.1f GB/s\n", info->pcie_bandwidth_mbps / 1024.0);
fprintf(f, " clock_crystal_freq = %i KHz\n", info->clock_crystal_freq);
const char *ip_string[] = {
src/amd/common/ac_gpu_info.h
+3
View File
@@ -68,6 +68,9 @@ struct radeon_info {
uint32_t memory_freq_mhz_effective;
uint32_t memory_bus_width;
uint32_t memory_bandwidth_gbps;
uint32_t pcie_gen;
uint32_t pcie_num_lanes;
uint32_t pcie_bandwidth_mbps;
uint32_t clock_crystal_freq;
struct amd_ip_info ip[AMD_NUM_IP_TYPES];