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path: root/drivers/gpu/drm/imagination/pvr_fw_mips.h
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Diffstat (limited to 'drivers/gpu/drm/imagination/pvr_fw_mips.h')
-rw-r--r--drivers/gpu/drm/imagination/pvr_fw_mips.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imagination/pvr_fw_mips.h b/drivers/gpu/drm/imagination/pvr_fw_mips.h
new file mode 100644
index 000000000000..408dbe63a90c
--- /dev/null
+++ b/drivers/gpu/drm/imagination/pvr_fw_mips.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#ifndef PVR_FW_MIPS_H
+#define PVR_FW_MIPS_H
+
+#include "pvr_rogue_mips.h"
+
+#include <asm/page.h>
+#include <linux/types.h>
+
+/* Forward declaration from pvr_gem.h. */
+struct pvr_gem_object;
+
+#define PVR_MIPS_PT_PAGE_COUNT ((ROGUE_MIPSFW_MAX_NUM_PAGETABLE_PAGES * ROGUE_MIPSFW_PAGE_SIZE_4K) \
+ >> PAGE_SHIFT)
+/**
+ * struct pvr_fw_mips_data - MIPS-specific data
+ */
+struct pvr_fw_mips_data {
+ /**
+ * @pt_pages: Pages containing MIPS pagetable.
+ */
+ struct page *pt_pages[PVR_MIPS_PT_PAGE_COUNT];
+
+ /** @pt: Pointer to CPU mapping of MIPS pagetable. */
+ u32 *pt;
+
+ /** @pt_dma_addr: DMA mappings of MIPS pagetable. */
+ dma_addr_t pt_dma_addr[PVR_MIPS_PT_PAGE_COUNT];
+
+ /** @boot_code_dma_addr: DMA address of MIPS boot code. */
+ dma_addr_t boot_code_dma_addr;
+
+ /** @boot_data_dma_addr: DMA address of MIPS boot data. */
+ dma_addr_t boot_data_dma_addr;
+
+ /** @exception_code_dma_addr: DMA address of MIPS exception code. */
+ dma_addr_t exception_code_dma_addr;
+
+ /** @cache_policy: Cache policy for this processor. */
+ u32 cache_policy;
+
+ /** @pfn_mask: PFN mask for MIPS pagetable. */
+ u32 pfn_mask;
+};
+
+#endif /* PVR_FW_MIPS_H */