[PATCH] drm/amdkfd: Add cache line size info

[Somasekharan, Sreekant]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Sreekant Somasekharan <Sreekant.Somasekharan at amd.com>

Regards,

-Sreekant


________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of David Belanger <david.belanger at amd.com>
Sent: Friday, August 23, 2024 7:58 PM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Belanger, David <David.Belanger at amd.com>
Subject: [PATCH] drm/amdkfd: Add cache line size info

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Populate cache line size info in topology based on information from IP
discovery table.

Signed-off-by: David Belanger <david.belanger at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
index cd7b81b7b939..48caecf7e72e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -1434,7 +1434,8 @@ static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev,
                pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
                                        CRAT_CACHE_FLAGS_DATA_CACHE |
                                        CRAT_CACHE_FLAGS_SIMD_CACHE);
-               pcache_info[0].num_cu_shared = adev->gfx.config.gc_num_tcp_per_wpg / 2;
+               pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_tcp_per_wpg / 2;
+               pcache_info[i].cache_line_size = adev->gfx.config.gc_tcp_cache_line_size;
                i++;
        }
        /* Scalar L1 Instruction Cache per SQC */
@@ -1446,6 +1447,7 @@ static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev,
                                        CRAT_CACHE_FLAGS_INST_CACHE |
                                        CRAT_CACHE_FLAGS_SIMD_CACHE);
                pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2;
+               pcache_info[i].cache_line_size = adev->gfx.config.gc_instruction_cache_line_size;
                i++;
        }
        /* Scalar L1 Data Cache per SQC */
@@ -1456,6 +1458,7 @@ static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev,
                                        CRAT_CACHE_FLAGS_DATA_CACHE |
                                        CRAT_CACHE_FLAGS_SIMD_CACHE);
                pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2;
+               pcache_info[i].cache_line_size = adev->gfx.config.gc_scalar_data_cache_line_size;
                i++;
        }
        /* GL1 Data Cache per SA */
@@ -1468,6 +1471,7 @@ static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev,
                                        CRAT_CACHE_FLAGS_DATA_CACHE |
                                        CRAT_CACHE_FLAGS_SIMD_CACHE);
                pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
+               pcache_info[i].cache_line_size = 0;
                i++;
        }
        /* L2 Data Cache per GPU (Total Tex Cache) */
@@ -1478,6 +1482,7 @@ static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev,
                                        CRAT_CACHE_FLAGS_DATA_CACHE |
                                        CRAT_CACHE_FLAGS_SIMD_CACHE);
                pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
+               pcache_info[i].cache_line_size = adev->gfx.config.gc_tcc_cache_line_size;
                i++;
        }
        /* L3 Data Cache per GPU */
@@ -1488,6 +1493,7 @@ static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev,
                                        CRAT_CACHE_FLAGS_DATA_CACHE |
                                        CRAT_CACHE_FLAGS_SIMD_CACHE);
                pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
+               pcache_info[i].cache_line_size = 0;
                i++;
        }
        return i;
--
2.41.0

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