[PATCH 3/4] drm/amdgpu: Add kgd kfd interface get_tile_config()

[Felix Kuehling]

From: Yong Zhao <yong.zhao at amd.com>

Signed-off-by: Yong Zhao <yong.zhao at amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 29 ++++++++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c | 28 +++++++++++++++++++++-
 drivers/gpu/drm/amd/include/kgd_kfd_interface.h   | 12 ++++++++++
 3 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
index 11d515a..445a686 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
@@ -140,6 +140,32 @@ static int alloc_memory_of_scratch(struct kgd_dev *kgd,
 static int write_config_static_mem(struct kgd_dev *kgd, bool swizzle_enable,
 		uint8_t element_size, uint8_t index_stride, uint8_t mtype);
 
+/* Because of REG_GET_FIELD() being used, we put this function in the
+ * asic specific file.
+ */
+static int amdgpu_amdkfd_get_tile_config(struct kgd_dev *kgd,
+		struct tile_config *config)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
+
+	config->gb_addr_config = adev->gfx.config.gb_addr_config;
+	config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
+				MC_ARB_RAMCFG, NOOFBANK);
+	config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
+				MC_ARB_RAMCFG, NOOFRANKS);
+
+	config->tile_config_ptr = adev->gfx.config.tile_mode_array;
+	config->num_tile_configs =
+			ARRAY_SIZE(adev->gfx.config.tile_mode_array);
+	config->macro_tile_config_ptr =
+			adev->gfx.config.macrotile_mode_array;
+	config->num_macro_tile_configs =
+			ARRAY_SIZE(adev->gfx.config.macrotile_mode_array);
+
+
+	return 0;
+}
+
 static const struct kfd2kgd_calls kfd2kgd = {
 	.init_gtt_mem_allocation = alloc_gtt_mem,
 	.free_gtt_mem = free_gtt_mem,
@@ -165,7 +191,8 @@ static const struct kfd2kgd_calls kfd2kgd = {
 	.write_vmid_invalidate_request = write_vmid_invalidate_request,
 	.get_fw_version = get_fw_version,
 	.alloc_memory_of_scratch = alloc_memory_of_scratch,
-	.write_config_static_mem = write_config_static_mem
+	.write_config_static_mem = write_config_static_mem,
+	.get_tile_config = amdgpu_amdkfd_get_tile_config,
 };
 
 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
index ef677e5..2d6ba09 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
@@ -99,6 +99,31 @@ static int alloc_memory_of_scratch(struct kgd_dev *kgd,
 static int write_config_static_mem(struct kgd_dev *kgd, bool swizzle_enable,
 		uint8_t element_size, uint8_t index_stride, uint8_t mtype);
 
+/* Because of REG_GET_FIELD() being used, we put this function in the
+ * asic specific file.
+ */
+static int amdgpu_amdkfd_get_tile_config(struct kgd_dev *kgd,
+		struct tile_config *config)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
+
+	config->gb_addr_config = adev->gfx.config.gb_addr_config;
+	config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
+				MC_ARB_RAMCFG, NOOFBANK);
+	config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
+				MC_ARB_RAMCFG, NOOFRANKS);
+
+	config->tile_config_ptr = adev->gfx.config.tile_mode_array;
+	config->num_tile_configs =
+			ARRAY_SIZE(adev->gfx.config.tile_mode_array);
+	config->macro_tile_config_ptr =
+			adev->gfx.config.macrotile_mode_array;
+	config->num_macro_tile_configs =
+			ARRAY_SIZE(adev->gfx.config.macrotile_mode_array);
+
+	return 0;
+}
+
 static const struct kfd2kgd_calls kfd2kgd = {
 	.init_gtt_mem_allocation = alloc_gtt_mem,
 	.free_gtt_mem = free_gtt_mem,
@@ -126,7 +151,8 @@ static const struct kfd2kgd_calls kfd2kgd = {
 	.write_vmid_invalidate_request = write_vmid_invalidate_request,
 	.get_fw_version = get_fw_version,
 	.alloc_memory_of_scratch = alloc_memory_of_scratch,
-	.write_config_static_mem = write_config_static_mem
+	.write_config_static_mem = write_config_static_mem,
+	.get_tile_config = amdgpu_amdkfd_get_tile_config,
 };
 
 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void)
diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
index 1dd90b2..22774ac 100644
--- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
@@ -87,6 +87,17 @@ struct kgd2kfd_shared_resources {
 	size_t doorbell_start_offset;
 };
 
+struct tile_config {
+	uint32_t *tile_config_ptr;
+	uint32_t *macro_tile_config_ptr;
+	uint32_t num_tile_configs;
+	uint32_t num_macro_tile_configs;
+
+	uint32_t gb_addr_config;
+	uint32_t num_banks;
+	uint32_t num_ranks;
+};
+
 /**
  * struct kfd2kgd_calls
  *
@@ -203,6 +214,7 @@ struct kfd2kgd_calls {
 			uint64_t va, uint32_t vmid);
 	int (*write_config_static_mem)(struct kgd_dev *kgd, bool swizzle_enable,
 		uint8_t element_size, uint8_t index_stride, uint8_t mtype);
+	int (*get_tile_config)(struct kgd_dev *kgd, struct tile_config *config);
 };
 
 /**
-- 
2.7.4