drm/nouveau: implement init table opcode 0x5c (ec64a408) · Commits · 戴 / test

drivers/gpu/drm/nouveau/nouveau_bios.c

+24 −3

Original line number	Diff line number	Diff line
		@@ -269,7 +269,7 @@ struct init_tbl_entry {
		int (handler)(struct nvbios , uint16_t, struct init_exec *);
		};

		static int parse_init_table(struct nvbios , unsigned int, struct init_exec );
		static int parse_init_table(struct nvbios , uint16_t, struct init_exec );

		#define MACRO_INDEX_SIZE 2
		#define MACRO_SIZE 8
		@@ -2010,6 +2010,27 @@ init_sub_direct(struct nvbios bios, uint16_t offset, struct init_exec iexec)
		return 3;
		}

		static int
		init_jump(struct nvbios bios, uint16_t offset, struct init_exec iexec)
		{
		/*
		* INIT_JUMP opcode: 0x5C ('\')
		*
		* offset (8 bit): opcode
		* offset + 1 (16 bit): offset (in bios)
		*
		* Continue execution of init table from 'offset'
		*/

		uint16_t jmp_offset = ROM16(bios->data[offset + 1]);

		if (!iexec->execute)
		return 3;

		BIOSLOG(bios, "0x%04X: Jump to 0x%04X\n", offset, jmp_offset);
		return jmp_offset - offset;
		}

		static int
		init_i2c_if(struct nvbios bios, uint16_t offset, struct init_exec iexec)
		{
		@@ -3659,6 +3680,7 @@ static struct init_tbl_entry itbl_entry[] = {
		{ "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence },
		/* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */
		{ "INIT_SUB_DIRECT" , 0x5B, init_sub_direct },
		{ "INIT_JUMP" , 0x5C, init_jump },
		{ "INIT_I2C_IF" , 0x5E, init_i2c_if },
		{ "INIT_COPY_NV_REG" , 0x5F, init_copy_nv_reg },
		{ "INIT_ZM_INDEX_IO" , 0x62, init_zm_index_io },
		@@ -3700,8 +3722,7 @@ static struct init_tbl_entry itbl_entry[] = {
		#define MAX_TABLE_OPS 1000

		static int
		parse_init_table(struct nvbios *bios, unsigned int offset,
		struct init_exec *iexec)
		parse_init_table(struct nvbios bios, uint16_t offset, struct init_exec iexec)
		{
		/*
		* Parses all commands in an init table.

Admin message