From 1f6167fe9f1c48f4952cac5789e3e032e672bd88 Mon Sep 17 00:00:00 2001
From: Hawking Zhang <Hawking.Zhang@amd.com>
Date: Sat, 8 Jan 2022 17:18:37 +0800
Subject: drm/amdgpu: add nbio callback to query rom offset
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Git-commit: fb1d6835137369d6776c3141593b5b33369f3ca3
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Add nbio callback func used to query rom offset.
Used to query the rom offset for fetching the vbios.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 13 +++++++++++--
drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h | 1 +
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
index 0eddca795e96..e363f56c72af 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -471,6 +471,7 @@ bool amdgpu_soc15_read_bios_from_rom(struct amdgpu_device *adev,
{
u32 *dw_ptr;
u32 i, length_dw;
+ u32 rom_offset;
u32 rom_index_offset;
u32 rom_data_offset;
@@ -494,8 +495,16 @@ bool amdgpu_soc15_read_bios_from_rom(struct amdgpu_device *adev,
rom_data_offset =
adev->smuio.funcs->get_rom_data_offset(adev);
- /* set rom index to 0 */
- WREG32(rom_index_offset, 0);
+ if (adev->nbio.funcs &&
+ adev->nbio.funcs->get_rom_offset) {
+ rom_offset = adev->nbio.funcs->get_rom_offset(adev);
+ rom_offset = rom_offset << 17;
+ } else {
+ rom_offset = 0;
+ }
+
+ /* set rom index to rom_offset */
+ WREG32(rom_index_offset, rom_offset);
/* read out the rom data */
for (i = 0; i < length_dw; i++)
dw_ptr[i] = RREG32(rom_data_offset);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
index 03439083182a..ccd9fe96fab7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
@@ -93,6 +93,7 @@ struct amdgpu_nbio_funcs {
void (*apply_lc_spc_mode_wa)(struct amdgpu_device *adev);
void (*apply_l1_link_width_reconfig_wa)(struct amdgpu_device *adev);
void (*clear_doorbell_interrupt)(struct amdgpu_device *adev);
+ u32 (*get_rom_offset)(struct amdgpu_device *adev);
};
struct amdgpu_nbio {
--
2.38.1