From 14493cb99b71dbaff58dc0dc0b2cc0a56a88ef05 Mon Sep 17 00:00:00 2001
From: Lijo Lazar <lijo.lazar@amd.com>
Date: Tue, 14 Feb 2023 14:37:53 +0530
Subject: [PATCH] drm/amdgpu: Add memory partitions to gmc
Some ASICs have the device memory divided into multiple partitions. The
parititions could be denoted by a numa node or by a range of pages.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
index 2bd3b9665ebfd..43357d699e6ee 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
@@ -178,6 +178,21 @@ struct amdgpu_xgmi {
struct amdgpu_xgmi_ras *ras;
};
+struct amdgpu_mem_partition_info {
+ union {
+ struct {
+ uint32_t fpfn;
+ uint32_t lpfn;
+ } range;
+ struct {
+ int node;
+ } numa;
+ };
+ uint64_t size;
+};
+
+#define INVALID_PFN -1
+
struct amdgpu_gmc {
/* FB's physical address in MMIO space (for CPU to
* map FB). This is different compared to the agp/
@@ -266,6 +281,8 @@ struct amdgpu_gmc {
bool tmz_enabled;
bool is_app_apu;
+ struct amdgpu_mem_partition_info *mem_partitions;
+ uint8_t num_mem_partitions;
const struct amdgpu_gmc_funcs *gmc_funcs;
struct amdgpu_xgmi xgmi;
--
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