[PATCH v2 4/6] drm/amdgpu: Use single copy per SDMA instance type (v2)

[Zhang, Hawking]

[AMD Official Use Only - General]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Shiwu Zhang
Sent: Thursday, May 18, 2023 20:21
To: amd-gfx at lists.freedesktop.org
Subject: [PATCH v2 4/6] drm/amdgpu: Use single copy per SDMA instance type (v2)

From: Lijo Lazar <lijo.lazar at amd.com>

v1: Only single copy per instance type is required for PSP. All instance types use the same firmware copy. (Lijo)

v2: Apply the change into amdgpu_sdma_init_microcode() due to rebase. (Morris)

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Signed-off-by: Shiwu Zhang <shiwu.zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
index 231ca06bc9c7..1797b45d0b55 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
@@ -252,6 +252,13 @@ int amdgpu_sdma_init_microcode(struct amdgpu_device *adev,
 				if (!duplicate && (instance != i))
 					continue;
 				else {
+					/* Use a single copy per SDMA firmware type. PSP uses the same instance for all
+					 * groups of SDMAs */
+					if (adev->ip_versions[SDMA0_HWIP][0] == IP_VERSION(4, 4, 2) &&
+					    adev->firmware.load_type == AMDGPU_FW_LOAD_PSP &&
+					    adev->sdma.num_inst_per_aid == i) {
+						break;
+					}
 					info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
 					info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
 					info->fw = adev->sdma.instance[i].fw;
--
2.17.1