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drm/radeon/kms: add dpm support for btc (v3)

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This adds dpm support for btc asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: attempt to fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-06-26 00:15:24 -04:00
parent dc50ba7f9a
commit 6596afd48a
10 changed files with 2540 additions and 1 deletions
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21
drivers/gpu/drm/radeon/ni.c
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@@ -180,13 +180,16 @@ extern int sumo_rlc_init(struct radeon_device *rdev);
MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
MODULE_FIRMWARE("radeon/BARTS_me.bin");
MODULE_FIRMWARE("radeon/BARTS_mc.bin");
MODULE_FIRMWARE("radeon/BARTS_smc.bin");
MODULE_FIRMWARE("radeon/BTC_rlc.bin");
MODULE_FIRMWARE("radeon/TURKS_pfp.bin");
MODULE_FIRMWARE("radeon/TURKS_me.bin");
MODULE_FIRMWARE("radeon/TURKS_mc.bin");
MODULE_FIRMWARE("radeon/TURKS_smc.bin");
MODULE_FIRMWARE("radeon/CAICOS_pfp.bin");
MODULE_FIRMWARE("radeon/CAICOS_me.bin");
MODULE_FIRMWARE("radeon/CAICOS_mc.bin");
MODULE_FIRMWARE("radeon/CAICOS_smc.bin");
MODULE_FIRMWARE("radeon/CAYMAN_pfp.bin");
MODULE_FIRMWARE("radeon/CAYMAN_me.bin");
MODULE_FIRMWARE("radeon/CAYMAN_mc.bin");
@@ -683,6 +686,7 @@ int ni_init_microcode(struct radeon_device *rdev)
const char *chip_name;
const char *rlc_chip_name;
size_t pfp_req_size, me_req_size, rlc_req_size, mc_req_size;
size_t smc_req_size = 0;
char fw_name[30];
int err;
@@ -703,6 +707,7 @@ int ni_init_microcode(struct radeon_device *rdev)
me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
mc_req_size = BTC_MC_UCODE_SIZE * 4;
smc_req_size = ALIGN(BARTS_SMC_UCODE_SIZE, 4);
break;
case CHIP_TURKS:
chip_name = "TURKS";
@@ -711,6 +716,7 @@ int ni_init_microcode(struct radeon_device *rdev)
me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
mc_req_size = BTC_MC_UCODE_SIZE * 4;
smc_req_size = ALIGN(TURKS_SMC_UCODE_SIZE, 4);
break;
case CHIP_CAICOS:
chip_name = "CAICOS";
@@ -719,6 +725,7 @@ int ni_init_microcode(struct radeon_device *rdev)
me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
mc_req_size = BTC_MC_UCODE_SIZE * 4;
smc_req_size = ALIGN(CAICOS_SMC_UCODE_SIZE, 4);
break;
case CHIP_CAYMAN:
chip_name = "CAYMAN";
@@ -789,6 +796,20 @@ int ni_init_microcode(struct radeon_device *rdev)
err = -EINVAL;
}
}
if ((rdev->family >= CHIP_BARTS) && (rdev->family <= CHIP_CAICOS)) {
snprintf(fw_name, sizeof(fw_name), "radeon/%s_smc.bin", chip_name);
err = request_firmware(&rdev->smc_fw, fw_name, &pdev->dev);
if (err)
goto out;
if (rdev->smc_fw->size != smc_req_size) {
printk(KERN_ERR
"ni_mc: Bogus length %zu in firmware \"%s\"\n",
rdev->mc_fw->size, fw_name);
err = -EINVAL;
}
}
out:
platform_device_unregister(pdev);