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path: root/drivers/gpu/drm/amd/amdgpu/si_smc.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/si_smc.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/si_smc.c273
1 files changed, 0 insertions, 273 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/si_smc.c b/drivers/gpu/drm/amd/amdgpu/si_smc.c
deleted file mode 100644
index 8f994ffa9cd1..000000000000
--- a/drivers/gpu/drm/amd/amdgpu/si_smc.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * Copyright 2011 Advanced Micro Devices, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors: Alex Deucher
- */
-
-#include <linux/firmware.h>
-
-#include "amdgpu.h"
-#include "sid.h"
-#include "ppsmc.h"
-#include "amdgpu_ucode.h"
-#include "sislands_smc.h"
-
-static int si_set_smc_sram_address(struct amdgpu_device *adev,
- u32 smc_address, u32 limit)
-{
- if (smc_address & 3)
- return -EINVAL;
- if ((smc_address + 3) > limit)
- return -EINVAL;
-
- WREG32(SMC_IND_INDEX_0, smc_address);
- WREG32_P(SMC_IND_ACCESS_CNTL, 0, ~AUTO_INCREMENT_IND_0);
-
- return 0;
-}
-
-int amdgpu_si_copy_bytes_to_smc(struct amdgpu_device *adev,
- u32 smc_start_address,
- const u8 *src, u32 byte_count, u32 limit)
-{
- unsigned long flags;
- int ret = 0;
- u32 data, original_data, addr, extra_shift;
-
- if (smc_start_address & 3)
- return -EINVAL;
- if ((smc_start_address + byte_count) > limit)
- return -EINVAL;
-
- addr = smc_start_address;
-
- spin_lock_irqsave(&adev->smc_idx_lock, flags);
- while (byte_count >= 4) {
- /* SMC address space is BE */
- data = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3];
-
- ret = si_set_smc_sram_address(adev, addr, limit);
- if (ret)
- goto done;
-
- WREG32(SMC_IND_DATA_0, data);
-
- src += 4;
- byte_count -= 4;
- addr += 4;
- }
-
- /* RMW for the final bytes */
- if (byte_count > 0) {
- data = 0;
-
- ret = si_set_smc_sram_address(adev, addr, limit);
- if (ret)
- goto done;
-
- original_data = RREG32(SMC_IND_DATA_0);
- extra_shift = 8 * (4 - byte_count);
-
- while (byte_count > 0) {
- /* SMC address space is BE */
- data = (data << 8) + *src++;
- byte_count--;
- }
-
- data <<= extra_shift;
- data |= (original_data & ~((~0UL) << extra_shift));
-
- ret = si_set_smc_sram_address(adev, addr, limit);
- if (ret)
- goto done;
-
- WREG32(SMC_IND_DATA_0, data);
- }
-
-done:
- spin_unlock_irqrestore(&adev->smc_idx_lock, flags);
-
- return ret;
-}
-
-void amdgpu_si_start_smc(struct amdgpu_device *adev)
-{
- u32 tmp = RREG32_SMC(SMC_SYSCON_RESET_CNTL);
-
- tmp &= ~RST_REG;
-
- WREG32_SMC(SMC_SYSCON_RESET_CNTL, tmp);
-}
-
-void amdgpu_si_reset_smc(struct amdgpu_device *adev)
-{
- u32 tmp;
-
- RREG32(CB_CGTT_SCLK_CTRL);
- RREG32(CB_CGTT_SCLK_CTRL);
- RREG32(CB_CGTT_SCLK_CTRL);
- RREG32(CB_CGTT_SCLK_CTRL);
-
- tmp = RREG32_SMC(SMC_SYSCON_RESET_CNTL) |
- RST_REG;
- WREG32_SMC(SMC_SYSCON_RESET_CNTL, tmp);
-}
-
-int amdgpu_si_program_jump_on_start(struct amdgpu_device *adev)
-{
- static const u8 data[] = { 0x0E, 0x00, 0x40, 0x40 };
-
- return amdgpu_si_copy_bytes_to_smc(adev, 0x0, data, 4, sizeof(data)+1);
-}
-
-void amdgpu_si_smc_clock(struct amdgpu_device *adev, bool enable)
-{
- u32 tmp = RREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0);
-
- if (enable)
- tmp &= ~CK_DISABLE;
- else
- tmp |= CK_DISABLE;
-
- WREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0, tmp);
-}
-
-bool amdgpu_si_is_smc_running(struct amdgpu_device *adev)
-{
- u32 rst = RREG32_SMC(SMC_SYSCON_RESET_CNTL);
- u32 clk = RREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0);
-
- if (!(rst & RST_REG) && !(clk & CK_DISABLE))
- return true;
-
- return false;
-}
-
-PPSMC_Result amdgpu_si_send_msg_to_smc(struct amdgpu_device *adev,
- PPSMC_Msg msg)
-{
- u32 tmp;
- int i;
-
- if (!amdgpu_si_is_smc_running(adev))
- return PPSMC_Result_Failed;
-
- WREG32(SMC_MESSAGE_0, msg);
-
- for (i = 0; i < adev->usec_timeout; i++) {
- tmp = RREG32(SMC_RESP_0);
- if (tmp != 0)
- break;
- udelay(1);
- }
-
- return (PPSMC_Result)RREG32(SMC_RESP_0);
-}
-
-PPSMC_Result amdgpu_si_wait_for_smc_inactive(struct amdgpu_device *adev)
-{
- u32 tmp;
- int i;
-
- if (!amdgpu_si_is_smc_running(adev))
- return PPSMC_Result_OK;
-
- for (i = 0; i < adev->usec_timeout; i++) {
- tmp = RREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0);
- if ((tmp & CKEN) == 0)
- break;
- udelay(1);
- }
-
- return PPSMC_Result_OK;
-}
-
-int amdgpu_si_load_smc_ucode(struct amdgpu_device *adev, u32 limit)
-{
- const struct smc_firmware_header_v1_0 *hdr;
- unsigned long flags;
- u32 ucode_start_address;
- u32 ucode_size;
- const u8 *src;
- u32 data;
-
- if (!adev->pm.fw)
- return -EINVAL;
-
- hdr = (const struct smc_firmware_header_v1_0 *)adev->pm.fw->data;
-
- amdgpu_ucode_print_smc_hdr(&hdr->header);
-
- adev->pm.fw_version = le32_to_cpu(hdr->header.ucode_version);
- ucode_start_address = le32_to_cpu(hdr->ucode_start_addr);
- ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes);
- src = (const u8 *)
- (adev->pm.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
- if (ucode_size & 3)
- return -EINVAL;
-
- spin_lock_irqsave(&adev->smc_idx_lock, flags);
- WREG32(SMC_IND_INDEX_0, ucode_start_address);
- WREG32_P(SMC_IND_ACCESS_CNTL, AUTO_INCREMENT_IND_0, ~AUTO_INCREMENT_IND_0);
- while (ucode_size >= 4) {
- /* SMC address space is BE */
- data = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3];
-
- WREG32(SMC_IND_DATA_0, data);
-
- src += 4;
- ucode_size -= 4;
- }
- WREG32_P(SMC_IND_ACCESS_CNTL, 0, ~AUTO_INCREMENT_IND_0);
- spin_unlock_irqrestore(&adev->smc_idx_lock, flags);
-
- return 0;
-}
-
-int amdgpu_si_read_smc_sram_dword(struct amdgpu_device *adev, u32 smc_address,
- u32 *value, u32 limit)
-{
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&adev->smc_idx_lock, flags);
- ret = si_set_smc_sram_address(adev, smc_address, limit);
- if (ret == 0)
- *value = RREG32(SMC_IND_DATA_0);
- spin_unlock_irqrestore(&adev->smc_idx_lock, flags);
-
- return ret;
-}
-
-int amdgpu_si_write_smc_sram_dword(struct amdgpu_device *adev, u32 smc_address,
- u32 value, u32 limit)
-{
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&adev->smc_idx_lock, flags);
- ret = si_set_smc_sram_address(adev, smc_address, limit);
- if (ret == 0)
- WREG32(SMC_IND_DATA_0, value);
- spin_unlock_irqrestore(&adev->smc_idx_lock, flags);
-
- return ret;
-}
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