drm/amd/pm/smu7: Remove unused smu7_copy_bytes_from_smc

smu7_copy_bytes_from_smc() was added in 2016 by
commit 1ff55f4 ("drm/amd/powerplay: implement smu7_smumgr for asics
with smu ip version 7.")

but never used.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Dr. David Alan Gilbert

drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.c

@@ -46,42 +46,6 @@ static int smu7_set_smc_sram_address(struct pp_hwmgr *hwmgr, uint32_t smc_addr,
 }
 
 
-int smu7_copy_bytes_from_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address, uint32_t *dest, uint32_t byte_count, uint32_t limit)
-{
-	uint32_t data;
-	uint32_t addr;
-	uint8_t *dest_byte;
-	uint8_t i, data_byte[4] = {0};
-	uint32_t *pdata = (uint32_t *)&data_byte;
-
-	PP_ASSERT_WITH_CODE((0 == (3 & smc_start_address)), "SMC address must be 4 byte aligned.", return -EINVAL);
-	PP_ASSERT_WITH_CODE((limit > (smc_start_address + byte_count)), "SMC address is beyond the SMC RAM area.", return -EINVAL);
-
-	addr = smc_start_address;
-
-	while (byte_count >= 4) {
-		smu7_read_smc_sram_dword(hwmgr, addr, &data, limit);
-
-		*dest = PP_SMC_TO_HOST_UL(data);
-
-		dest += 1;
-		byte_count -= 4;
-		addr += 4;
-	}
-
-	if (byte_count) {
-		smu7_read_smc_sram_dword(hwmgr, addr, &data, limit);
-		*pdata = PP_SMC_TO_HOST_UL(data);
-	/* Cast dest into byte type in dest_byte.  This way, we don't overflow if the allocated memory is not 4-byte aligned. */
-		dest_byte = (uint8_t *)dest;
-		for (i = 0; i < byte_count; i++)
-			dest_byte[i] = data_byte[i];
-	}
-
-	return 0;
-}
-
-
 int smu7_copy_bytes_to_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address,
 				const uint8_t *src, uint32_t byte_count, uint32_t limit)
 {

drivers/gpu/drm/amd/pm/powerplay/smumgr/smu7_smumgr.h

@@ -53,8 +53,6 @@ struct smu7_smumgr {
 };
 
 
-int smu7_copy_bytes_from_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address,
-				uint32_t *dest, uint32_t byte_count, uint32_t limit);
 int smu7_copy_bytes_to_smc(struct pp_hwmgr *hwmgr, uint32_t smc_start_address,
 			const uint8_t *src, uint32_t byte_count, uint32_t limit);
 int smu7_program_jump_on_start(struct pp_hwmgr *hwmgr);