drm/radeon/kms: add dpm support for btc (v3)
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>
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index c73d713..7407762 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -180,13 +180,16 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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);