drm/radeon/kms: add dpm support for rv7xx (v4)
This adds dpm support for rv7xx asics. This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching
Set radeon.dpm=1 to enable.
v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index ce5aa1f..a27d746 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -57,10 +57,14 @@
MODULE_FIRMWARE("radeon/RS780_me.bin");
MODULE_FIRMWARE("radeon/RV770_pfp.bin");
MODULE_FIRMWARE("radeon/RV770_me.bin");
+MODULE_FIRMWARE("radeon/RV770_smc.bin");
MODULE_FIRMWARE("radeon/RV730_pfp.bin");
MODULE_FIRMWARE("radeon/RV730_me.bin");
+MODULE_FIRMWARE("radeon/RV730_smc.bin");
+MODULE_FIRMWARE("radeon/RV740_smc.bin");
MODULE_FIRMWARE("radeon/RV710_pfp.bin");
MODULE_FIRMWARE("radeon/RV710_me.bin");
+MODULE_FIRMWARE("radeon/RV710_smc.bin");
MODULE_FIRMWARE("radeon/R600_rlc.bin");
MODULE_FIRMWARE("radeon/R700_rlc.bin");
MODULE_FIRMWARE("radeon/CEDAR_pfp.bin");
@@ -2139,7 +2143,8 @@
struct platform_device *pdev;
const char *chip_name;
const char *rlc_chip_name;
- size_t pfp_req_size, me_req_size, rlc_req_size;
+ const char *smc_chip_name = "RV770";
+ size_t pfp_req_size, me_req_size, rlc_req_size, smc_req_size = 0;
char fw_name[30];
int err;
@@ -2185,15 +2190,26 @@
case CHIP_RV770:
chip_name = "RV770";
rlc_chip_name = "R700";
+ smc_chip_name = "RV770";
+ smc_req_size = ALIGN(RV770_SMC_UCODE_SIZE, 4);
break;
case CHIP_RV730:
- case CHIP_RV740:
chip_name = "RV730";
rlc_chip_name = "R700";
+ smc_chip_name = "RV730";
+ smc_req_size = ALIGN(RV730_SMC_UCODE_SIZE, 4);
break;
case CHIP_RV710:
chip_name = "RV710";
rlc_chip_name = "R700";
+ smc_chip_name = "RV710";
+ smc_req_size = ALIGN(RV710_SMC_UCODE_SIZE, 4);
+ break;
+ case CHIP_RV740:
+ chip_name = "RV730";
+ rlc_chip_name = "R700";
+ smc_chip_name = "RV740";
+ smc_req_size = ALIGN(RV740_SMC_UCODE_SIZE, 4);
break;
case CHIP_CEDAR:
chip_name = "CEDAR";
@@ -2277,6 +2293,19 @@
err = -EINVAL;
}
+ if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740)) {
+ snprintf(fw_name, sizeof(fw_name), "radeon/%s_smc.bin", smc_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
+ "smc: Bogus length %zu in firmware \"%s\"\n",
+ rdev->smc_fw->size, fw_name);
+ err = -EINVAL;
+ }
+ }
+
out:
platform_device_unregister(pdev);
@@ -2291,6 +2320,8 @@
rdev->me_fw = NULL;
release_firmware(rdev->rlc_fw);
rdev->rlc_fw = NULL;
+ release_firmware(rdev->smc_fw);
+ rdev->smc_fw = NULL;
}
return err;
}
@@ -4039,10 +4070,13 @@
if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
thermal_int = RREG32(CG_THERMAL_INT) &
~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
- if (rdev->irq.dpm_thermal) {
- DRM_DEBUG("dpm thermal\n");
- thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
- }
+ } else if (rdev->family >= CHIP_RV770) {
+ thermal_int = RREG32(RV770_CG_THERMAL_INT) &
+ ~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
+ }
+ if (rdev->irq.dpm_thermal) {
+ DRM_DEBUG("dpm thermal\n");
+ thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
}
if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
@@ -4128,6 +4162,8 @@
}
if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
WREG32(CG_THERMAL_INT, thermal_int);
+ } else if (rdev->family >= CHIP_RV770) {
+ WREG32(RV770_CG_THERMAL_INT, thermal_int);
}
return 0;