drm/amdgpu: move atom scratch setup into amdgpu_atombios.c

There will be a slightly different version for atomfirmware.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c

@@ -1748,3 +1748,31 @@ void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
 	memcpy(dst, src, num_bytes);
 #endif
 }
+
+int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev)
+{
+	struct atom_context *ctx = adev->mode_info.atom_context;
+	int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
+	uint16_t data_offset;
+	int usage_bytes = 0;
+	struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
+
+	if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
+		firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
+
+		DRM_DEBUG("atom firmware requested %08x %dkb\n",
+			  le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
+			  le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
+
+		usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
+	}
+	ctx->scratch_size_bytes = 0;
+	if (usage_bytes == 0)
+		usage_bytes = 20 * 1024;
+	/* allocate some scratch memory */
+	ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
+	if (!ctx->scratch)
+		return -ENOMEM;
+	ctx->scratch_size_bytes = usage_bytes;
+	return 0;
+}

drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h

@@ -215,4 +215,7 @@ int amdgpu_atombios_get_clock_dividers(struct amdgpu_device *adev,
 int amdgpu_atombios_get_svi2_info(struct amdgpu_device *adev,
 			      u8 voltage_type,
 			      u8 *svd_gpio_id, u8 *svc_gpio_id);
+
+int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev);
+
 #endif

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -994,7 +994,7 @@ static int amdgpu_atombios_init(struct amdgpu_device *adev)
 
 	mutex_init(&adev->mode_info.atom_context->mutex);
 	amdgpu_atombios_scratch_regs_init(adev);
-	amdgpu_atom_allocate_fb_scratch(adev->mode_info.atom_context);
+	amdgpu_atombios_allocate_fb_scratch(adev);
 	return 0;
 }
 

drivers/gpu/drm/amd/amdgpu/atom.c

@@ -1417,29 +1417,3 @@ bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t *
 	return true;
 }
 
-int amdgpu_atom_allocate_fb_scratch(struct atom_context *ctx)
-{
-	int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
-	uint16_t data_offset;
-	int usage_bytes = 0;
-	struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
-
-	if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
-		firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
-
-		DRM_DEBUG("atom firmware requested %08x %dkb\n",
-			  le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
-			  le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
-
-		usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
-	}
-	ctx->scratch_size_bytes = 0;
-	if (usage_bytes == 0)
-		usage_bytes = 20 * 1024;
-	/* allocate some scratch memory */
-	ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
-	if (!ctx->scratch)
-		return -ENOMEM;
-	ctx->scratch_size_bytes = usage_bytes;
-	return 0;
-}

drivers/gpu/drm/amd/amdgpu/atom.h

@@ -152,7 +152,6 @@ bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index, uint16_t
 			    uint8_t *frev, uint8_t *crev, uint16_t *data_start);
 bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index,
 			   uint8_t *frev, uint8_t *crev);
-int amdgpu_atom_allocate_fb_scratch(struct atom_context *ctx);
 #include "atom-types.h"
 #include "atombios.h"
 #include "ObjectID.h"