diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/rv770_smc.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rv770_smc.c | 621 |
1 files changed, 621 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rv770_smc.c b/drivers/gpu/drm/radeon/rv770_smc.c new file mode 100644 index 000000000000..ab95da570215 --- /dev/null +++ b/drivers/gpu/drm/radeon/rv770_smc.c @@ -0,0 +1,621 @@ +/* + * 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 "drmP.h" +#include "radeon.h" +#include "rv770d.h" +#include "rv770_dpm.h" +#include "rv770_smc.h" +#include "atom.h" +#include "radeon_ucode.h" + +#define FIRST_SMC_INT_VECT_REG 0xFFD8 +#define FIRST_INT_VECT_S19 0xFFC0 + +static const u8 rv770_smc_int_vectors[] = +{ + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x0C, 0xD7, + 0x08, 0x2B, 0x08, 0x10, + 0x03, 0x51, 0x03, 0x51, + 0x03, 0x51, 0x03, 0x51 +}; + +static const u8 rv730_smc_int_vectors[] = +{ + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x08, 0x15, + 0x08, 0x15, 0x0C, 0xBB, + 0x08, 0x30, 0x08, 0x15, + 0x03, 0x56, 0x03, 0x56, + 0x03, 0x56, 0x03, 0x56 +}; + +static const u8 rv710_smc_int_vectors[] = +{ + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x08, 0x04, + 0x08, 0x04, 0x0C, 0xCB, + 0x08, 0x1F, 0x08, 0x04, + 0x03, 0x51, 0x03, 0x51, + 0x03, 0x51, 0x03, 0x51 +}; + +static const u8 rv740_smc_int_vectors[] = +{ + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x08, 0x10, + 0x08, 0x10, 0x0C, 0xD7, + 0x08, 0x2B, 0x08, 0x10, + 0x03, 0x51, 0x03, 0x51, + 0x03, 0x51, 0x03, 0x51 +}; + +static const u8 cedar_smc_int_vectors[] = +{ + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x11, 0x8B, + 0x0B, 0x20, 0x0B, 0x05, + 0x04, 0xF6, 0x04, 0xF6, + 0x04, 0xF6, 0x04, 0xF6 +}; + +static const u8 redwood_smc_int_vectors[] = +{ + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x11, 0x8B, + 0x0B, 0x20, 0x0B, 0x05, + 0x04, 0xF6, 0x04, 0xF6, + 0x04, 0xF6, 0x04, 0xF6 +}; + +static const u8 juniper_smc_int_vectors[] = +{ + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x11, 0x8B, + 0x0B, 0x20, 0x0B, 0x05, + 0x04, 0xF6, 0x04, 0xF6, + 0x04, 0xF6, 0x04, 0xF6 +}; + +static const u8 cypress_smc_int_vectors[] = +{ + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x0B, 0x05, + 0x0B, 0x05, 0x11, 0x8B, + 0x0B, 0x20, 0x0B, 0x05, + 0x04, 0xF6, 0x04, 0xF6, + 0x04, 0xF6, 0x04, 0xF6 +}; + +static const u8 barts_smc_int_vectors[] = +{ + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x12, 0xAA, + 0x0C, 0x2F, 0x15, 0xF6, + 0x15, 0xF6, 0x05, 0x0A, + 0x05, 0x0A, 0x05, 0x0A +}; + +static const u8 turks_smc_int_vectors[] = +{ + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x12, 0xAA, + 0x0C, 0x2F, 0x15, 0xF6, + 0x15, 0xF6, 0x05, 0x0A, + 0x05, 0x0A, 0x05, 0x0A +}; + +static const u8 caicos_smc_int_vectors[] = +{ + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x0C, 0x14, + 0x0C, 0x14, 0x12, 0xAA, + 0x0C, 0x2F, 0x15, 0xF6, + 0x15, 0xF6, 0x05, 0x0A, + 0x05, 0x0A, 0x05, 0x0A +}; + +static const u8 cayman_smc_int_vectors[] = +{ + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x12, 0x05, + 0x12, 0x05, 0x18, 0xEA, + 0x12, 0x20, 0x1C, 0x34, + 0x1C, 0x34, 0x08, 0x72, + 0x08, 0x72, 0x08, 0x72 +}; + +int rv770_set_smc_sram_address(struct radeon_device *rdev, + u16 smc_address, u16 limit) +{ + u32 addr; + + if (smc_address & 3) + return -EINVAL; + if ((smc_address + 3) > limit) + return -EINVAL; + + addr = smc_address; + addr |= SMC_SRAM_AUTO_INC_DIS; + + WREG32(SMC_SRAM_ADDR, addr); + + return 0; +} + +int rv770_copy_bytes_to_smc(struct radeon_device *rdev, + u16 smc_start_address, const u8 *src, + u16 byte_count, u16 limit) +{ + u32 data, original_data, extra_shift; + u16 addr; + int ret; + + if (smc_start_address & 3) + return -EINVAL; + if ((smc_start_address + byte_count) > limit) + return -EINVAL; + + addr = smc_start_address; + + while (byte_count >= 4) { + /* SMC address space is BE */ + data = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; + + ret = rv770_set_smc_sram_address(rdev, addr, limit); + if (ret) + return ret; + + WREG32(SMC_SRAM_DATA, data); + + src += 4; + byte_count -= 4; + addr += 4; + } + + /* RMW for final bytes */ + if (byte_count > 0) { + data = 0; + + ret = rv770_set_smc_sram_address(rdev, addr, limit); + if (ret) + return ret; + + original_data = RREG32(SMC_SRAM_DATA); + + 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 = rv770_set_smc_sram_address(rdev, addr, limit); + if (ret) + return ret; + + WREG32(SMC_SRAM_DATA, data); + } + + return 0; +} + +static int rv770_program_interrupt_vectors(struct radeon_device *rdev, + u32 smc_first_vector, const u8 *src, + u32 byte_count) +{ + u32 tmp, i; + + if (byte_count % 4) + return -EINVAL; + + if (smc_first_vector < FIRST_SMC_INT_VECT_REG) { + tmp = FIRST_SMC_INT_VECT_REG - smc_first_vector; + + if (tmp > byte_count) + return 0; + + byte_count -= tmp; + src += tmp; + smc_first_vector = FIRST_SMC_INT_VECT_REG; + } + + for (i = 0; i < byte_count; i += 4) { + /* SMC address space is BE */ + tmp = (src[i] << 24) | (src[i + 1] << 16) | (src[i + 2] << 8) | src[i + 3]; + + WREG32(SMC_ISR_FFD8_FFDB + i, tmp); + } + + return 0; +} + +void rv770_start_smc(struct radeon_device *rdev) +{ + WREG32_P(SMC_IO, SMC_RST_N, ~SMC_RST_N); +} + +void rv770_reset_smc(struct radeon_device *rdev) +{ + WREG32_P(SMC_IO, 0, ~SMC_RST_N); +} + +void rv770_stop_smc_clock(struct radeon_device *rdev) +{ + WREG32_P(SMC_IO, 0, ~SMC_CLK_EN); +} + +void rv770_start_smc_clock(struct radeon_device *rdev) +{ + WREG32_P(SMC_IO, SMC_CLK_EN, ~SMC_CLK_EN); +} + +bool rv770_is_smc_running(struct radeon_device *rdev) +{ + u32 tmp; + + tmp = RREG32(SMC_IO); + + if ((tmp & SMC_RST_N) && (tmp & SMC_CLK_EN)) + return true; + else + return false; +} + +PPSMC_Result rv770_send_msg_to_smc(struct radeon_device *rdev, PPSMC_Msg msg) +{ + u32 tmp; + int i; + PPSMC_Result result; + + if (!rv770_is_smc_running(rdev)) + return PPSMC_Result_Failed; + + WREG32_P(SMC_MSG, HOST_SMC_MSG(msg), ~HOST_SMC_MSG_MASK); + + for (i = 0; i < rdev->usec_timeout; i++) { + tmp = RREG32(SMC_MSG) & HOST_SMC_RESP_MASK; + tmp >>= HOST_SMC_RESP_SHIFT; + if (tmp != 0) + break; + udelay(1); + } + + tmp = RREG32(SMC_MSG) & HOST_SMC_RESP_MASK; + tmp >>= HOST_SMC_RESP_SHIFT; + + result = (PPSMC_Result)tmp; + return result; +} + +PPSMC_Result rv770_wait_for_smc_inactive(struct radeon_device *rdev) +{ + int i; + PPSMC_Result result = PPSMC_Result_OK; + + if (!rv770_is_smc_running(rdev)) + return result; + + for (i = 0; i < rdev->usec_timeout; i++) { + if (RREG32(SMC_IO) & SMC_STOP_MODE) + break; + udelay(1); + } + + return result; +} + +static void rv770_clear_smc_sram(struct radeon_device *rdev, u16 limit) +{ + u16 i; + + for (i = 0; i < limit; i += 4) { + rv770_set_smc_sram_address(rdev, i, limit); + WREG32(SMC_SRAM_DATA, 0); + } +} + +int rv770_load_smc_ucode(struct radeon_device *rdev, + u16 limit) +{ + int ret; + const u8 *int_vect; + u16 int_vect_start_address; + u16 int_vect_size; + const u8 *ucode_data; + u16 ucode_start_address; + u16 ucode_size; + + if (!rdev->smc_fw) + return -EINVAL; + + rv770_clear_smc_sram(rdev, limit); + + switch (rdev->family) { + case CHIP_RV770: + ucode_start_address = RV770_SMC_UCODE_START; + ucode_size = RV770_SMC_UCODE_SIZE; + int_vect = (const u8 *)&rv770_smc_int_vectors; + int_vect_start_address = RV770_SMC_INT_VECTOR_START; + int_vect_size = RV770_SMC_INT_VECTOR_SIZE; + break; + case CHIP_RV730: + ucode_start_address = RV730_SMC_UCODE_START; + ucode_size = RV730_SMC_UCODE_SIZE; + int_vect = (const u8 *)&rv730_smc_int_vectors; + int_vect_start_address = RV730_SMC_INT_VECTOR_START; + int_vect_size = RV730_SMC_INT_VECTOR_SIZE; + break; + case CHIP_RV710: + ucode_start_address = RV710_SMC_UCODE_START; + ucode_size = RV710_SMC_UCODE_SIZE; + int_vect = (const u8 *)&rv710_smc_int_vectors; + int_vect_start_address = RV710_SMC_INT_VECTOR_START; + int_vect_size = RV710_SMC_INT_VECTOR_SIZE; + break; + case CHIP_RV740: + ucode_start_address = RV740_SMC_UCODE_START; + ucode_size = RV740_SMC_UCODE_SIZE; + int_vect = (const u8 *)&rv740_smc_int_vectors; + int_vect_start_address = RV740_SMC_INT_VECTOR_START; + int_vect_size = RV740_SMC_INT_VECTOR_SIZE; + break; + case CHIP_CEDAR: + ucode_start_address = CEDAR_SMC_UCODE_START; + ucode_size = CEDAR_SMC_UCODE_SIZE; + int_vect = (const u8 *)&cedar_smc_int_vectors; + int_vect_start_address = CEDAR_SMC_INT_VECTOR_START; + int_vect_size = CEDAR_SMC_INT_VECTOR_SIZE; + break; + case CHIP_REDWOOD: + ucode_start_address = REDWOOD_SMC_UCODE_START; + ucode_size = REDWOOD_SMC_UCODE_SIZE; + int_vect = (const u8 *)&redwood_smc_int_vectors; + int_vect_start_address = REDWOOD_SMC_INT_VECTOR_START; + int_vect_size = REDWOOD_SMC_INT_VECTOR_SIZE; + break; + case CHIP_JUNIPER: + ucode_start_address = JUNIPER_SMC_UCODE_START; + ucode_size = JUNIPER_SMC_UCODE_SIZE; + int_vect = (const u8 *)&juniper_smc_int_vectors; + int_vect_start_address = JUNIPER_SMC_INT_VECTOR_START; + int_vect_size = JUNIPER_SMC_INT_VECTOR_SIZE; + break; + case CHIP_CYPRESS: + case CHIP_HEMLOCK: + ucode_start_address = CYPRESS_SMC_UCODE_START; + ucode_size = CYPRESS_SMC_UCODE_SIZE; + int_vect = (const u8 *)&cypress_smc_int_vectors; + int_vect_start_address = CYPRESS_SMC_INT_VECTOR_START; + int_vect_size = CYPRESS_SMC_INT_VECTOR_SIZE; + break; + case CHIP_BARTS: + ucode_start_address = BARTS_SMC_UCODE_START; + ucode_size = BARTS_SMC_UCODE_SIZE; + int_vect = (const u8 *)&barts_smc_int_vectors; + int_vect_start_address = BARTS_SMC_INT_VECTOR_START; + int_vect_size = BARTS_SMC_INT_VECTOR_SIZE; + break; + case CHIP_TURKS: + ucode_start_address = TURKS_SMC_UCODE_START; + ucode_size = TURKS_SMC_UCODE_SIZE; + int_vect = (const u8 *)&turks_smc_int_vectors; + int_vect_start_address = TURKS_SMC_INT_VECTOR_START; + int_vect_size = TURKS_SMC_INT_VECTOR_SIZE; + break; + case CHIP_CAICOS: + ucode_start_address = CAICOS_SMC_UCODE_START; + ucode_size = CAICOS_SMC_UCODE_SIZE; + int_vect = (const u8 *)&caicos_smc_int_vectors; + int_vect_start_address = CAICOS_SMC_INT_VECTOR_START; + int_vect_size = CAICOS_SMC_INT_VECTOR_SIZE; + break; + case CHIP_CAYMAN: + ucode_start_address = CAYMAN_SMC_UCODE_START; + ucode_size = CAYMAN_SMC_UCODE_SIZE; + int_vect = (const u8 *)&cayman_smc_int_vectors; + int_vect_start_address = CAYMAN_SMC_INT_VECTOR_START; + int_vect_size = CAYMAN_SMC_INT_VECTOR_SIZE; + break; + default: + DRM_ERROR("unknown asic in smc ucode loader\n"); + BUG(); + } + + /* load the ucode */ + ucode_data = (const u8 *)rdev->smc_fw->data; + ret = rv770_copy_bytes_to_smc(rdev, ucode_start_address, + ucode_data, ucode_size, limit); + if (ret) + return ret; + + /* set up the int vectors */ + ret = rv770_program_interrupt_vectors(rdev, int_vect_start_address, + int_vect, int_vect_size); + if (ret) + return ret; + + return 0; +} + +int rv770_read_smc_sram_dword(struct radeon_device *rdev, + u16 smc_address, u32 *value, u16 limit) +{ + int ret; + + ret = rv770_set_smc_sram_address(rdev, smc_address, limit); + if (ret) + return ret; + + *value = RREG32(SMC_SRAM_DATA); + + return 0; +} + +int rv770_write_smc_sram_dword(struct radeon_device *rdev, + u16 smc_address, u32 value, u16 limit) +{ + int ret; + + ret = rv770_set_smc_sram_address(rdev, smc_address, limit); + if (ret) + return ret; + + WREG32(SMC_SRAM_DATA, value); + + return 0; +} |