drm/amdgpu: Add fw vram usage reserve-region

Use reserve region helpers for initializing/reserving firmware usage
region in virtualized environments.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 19 insertions, 20 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index dba7ea16a10d..882d8524f4dc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -437,12 +437,8 @@ static void amdgpu_virt_add_bad_page(struct amdgpu_device *adev,
 	struct eeprom_table_record bp;
 	uint64_t retired_page;
 	uint32_t bp_idx, bp_cnt;
-	void *vram_usage_va = NULL;
-
-	if (adev->mman.fw_vram_usage_va)
-		vram_usage_va = adev->mman.fw_vram_usage_va;
-	else
-		vram_usage_va = adev->mman.drv_vram_usage_va;
+	void *fw_va = adev->mman.resv_region[AMDGPU_RESV_FW_VRAM_USAGE].cpu_ptr;
+	void *vram_usage_va = fw_va ? fw_va : adev->mman.drv_vram_usage_va;
 
 	memset(&bp, 0, sizeof(bp));
 
@@ -710,15 +706,16 @@ void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev)
 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
 {
 	uint32_t *pfvf_data = NULL;
+	void *fw_va = adev->mman.resv_region[AMDGPU_RESV_FW_VRAM_USAGE].cpu_ptr;
 
 	adev->virt.fw_reserve.p_pf2vf = NULL;
 	adev->virt.fw_reserve.p_vf2pf = NULL;
 	adev->virt.vf2pf_update_interval_ms = 0;
 	adev->virt.vf2pf_update_retry_cnt = 0;
 
-	if (adev->mman.fw_vram_usage_va && adev->mman.drv_vram_usage_va) {
+	if (fw_va && adev->mman.drv_vram_usage_va) {
 		dev_warn(adev->dev, "Currently fw_vram and drv_vram should not have values at the same time!");
-	} else if (adev->mman.fw_vram_usage_va || adev->mman.drv_vram_usage_va) {
+	} else if (fw_va || adev->mman.drv_vram_usage_va) {
 		/* go through this logic in ip_init and reset to init workqueue*/
 		amdgpu_virt_exchange_data(adev);
 
@@ -763,31 +760,32 @@ void amdgpu_virt_exchange_data(struct amdgpu_device *adev)
 	uint64_t bp_block_offset = 0;
 	uint32_t bp_block_size = 0;
 	struct amd_sriov_msg_pf2vf_info *pf2vf_v2 = NULL;
+	void *fw_va = adev->mman.resv_region[AMDGPU_RESV_FW_VRAM_USAGE].cpu_ptr;
 
-	if (adev->mman.fw_vram_usage_va || adev->mman.drv_vram_usage_va) {
-		if (adev->mman.fw_vram_usage_va) {
+	if (fw_va || adev->mman.drv_vram_usage_va) {
+		if (fw_va) {
 			if (adev->virt.req_init_data_ver == GPU_CRIT_REGION_V2) {
 				adev->virt.fw_reserve.p_pf2vf =
 					(struct amd_sriov_msg_pf2vf_info_header *)
-					(adev->mman.fw_vram_usage_va +
+					(fw_va +
 					adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].offset);
 				adev->virt.fw_reserve.p_vf2pf =
 					(struct amd_sriov_msg_vf2pf_info_header *)
-					(adev->mman.fw_vram_usage_va +
+					(fw_va +
 					adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_DATAEXCHANGE_TABLE_ID].offset +
 					(AMD_SRIOV_MSG_SIZE_KB << 10));
 				adev->virt.fw_reserve.ras_telemetry =
-					(adev->mman.fw_vram_usage_va +
+					(fw_va +
 					adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_RAS_TELEMETRY_TABLE_ID].offset);
 			} else {
 				adev->virt.fw_reserve.p_pf2vf =
 					(struct amd_sriov_msg_pf2vf_info_header *)
-					(adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB_V1 << 10));
+					(fw_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB_V1 << 10));
 				adev->virt.fw_reserve.p_vf2pf =
 					(struct amd_sriov_msg_vf2pf_info_header *)
-					(adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB_V1 << 10));
+					(fw_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB_V1 << 10));
 				adev->virt.fw_reserve.ras_telemetry =
-					(adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_RAS_TELEMETRY_OFFSET_KB_V1 << 10));
+					(fw_va + (AMD_SRIOV_MSG_RAS_TELEMETRY_OFFSET_KB_V1 << 10));
 			}
 		} else if (adev->mman.drv_vram_usage_va) {
 			adev->virt.fw_reserve.p_pf2vf =
@@ -1081,13 +1079,14 @@ int amdgpu_virt_init_critical_region(struct amdgpu_device *adev)
 	}
 
 	/* reserved memory starts from crit region base offset with the size of 5MB */
-	adev->mman.fw_vram_usage_start_offset = adev->virt.crit_regn.offset;
-	adev->mman.fw_vram_usage_size = adev->virt.crit_regn.size_kb << 10;
+	amdgpu_ttm_init_vram_resv(adev, AMDGPU_RESV_FW_VRAM_USAGE,
+				  adev->virt.crit_regn.offset,
+				  adev->virt.crit_regn.size_kb << 10, true);
 	dev_info(adev->dev,
 		"critical region v%d requested to reserve memory start at %08llx with %llu KB.\n",
 			init_data_hdr->version,
-			adev->mman.fw_vram_usage_start_offset,
-			adev->mman.fw_vram_usage_size >> 10);
+			adev->mman.resv_region[AMDGPU_RESV_FW_VRAM_USAGE].offset,
+			adev->mman.resv_region[AMDGPU_RESV_FW_VRAM_USAGE].size >> 10);
 
 	adev->virt.is_dynamic_crit_regn_enabled = true;