drm/radeon/kms: add ucode loading for SI

Currently the driver required 5 sets of ucode:
1. pfp - pre-fetch parser, part of the CP
2. me - micro engine, part of the CP
3. ce - constant engine, part of the CP
4. rlc - interrupt controller
5. mc - memory controller

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

2 files changed, 156 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index f467fe5edf09..f1c2f58e5724 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1527,6 +1527,7 @@ struct radeon_device {
         const struct firmware *pfp_fw;  /* r6/700 PFP firmware */
         const struct firmware *rlc_fw;  /* r6/700 RLC firmware */
         const struct firmware *mc_fw;   /* NI MC firmware */
+        const struct firmware *ce_fw;   /* SI CE firmware */
         struct r600_blit r600_blit;
         struct r600_vram_scratch vram_scratch;
         int msi_enabled; /* msi enabled */
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 30b379e3f3f5..0938c21e792d 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -21,6 +21,10 @@
  *
  * Authors: Alex Deucher
  */
+#include <linux/firmware.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/module.h>
 #include "drmP.h"
 #include "radeon.h"
 #include "radeon_asic.h"
@@ -28,6 +32,28 @@
 #include "sid.h"
 #include "atom.h"
 
+#define SI_PFP_UCODE_SIZE 2144
+#define SI_PM4_UCODE_SIZE 2144
+#define SI_CE_UCODE_SIZE 2144
+#define SI_RLC_UCODE_SIZE 2048
+#define SI_MC_UCODE_SIZE 7769
+
+MODULE_FIRMWARE("radeon/TAHITI_pfp.bin");
+MODULE_FIRMWARE("radeon/TAHITI_me.bin");
+MODULE_FIRMWARE("radeon/TAHITI_ce.bin");
+MODULE_FIRMWARE("radeon/TAHITI_mc.bin");
+MODULE_FIRMWARE("radeon/TAHITI_rlc.bin");
+MODULE_FIRMWARE("radeon/PITCAIRN_pfp.bin");
+MODULE_FIRMWARE("radeon/PITCAIRN_me.bin");
+MODULE_FIRMWARE("radeon/PITCAIRN_ce.bin");
+MODULE_FIRMWARE("radeon/PITCAIRN_mc.bin");
+MODULE_FIRMWARE("radeon/PITCAIRN_rlc.bin");
+MODULE_FIRMWARE("radeon/VERDE_pfp.bin");
+MODULE_FIRMWARE("radeon/VERDE_me.bin");
+MODULE_FIRMWARE("radeon/VERDE_ce.bin");
+MODULE_FIRMWARE("radeon/VERDE_mc.bin");
+MODULE_FIRMWARE("radeon/VERDE_rlc.bin");
+
 extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
 extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
 extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
@@ -51,6 +77,135 @@ int si_get_temp(struct radeon_device *rdev)
         return actual_temp;
 }
 
+static int si_init_microcode(struct radeon_device *rdev)
+{
+        struct platform_device *pdev;
+        const char *chip_name;
+        const char *rlc_chip_name;
+        size_t pfp_req_size, me_req_size, ce_req_size, rlc_req_size, mc_req_size;
+        char fw_name[30];
+        int err;
+
+        DRM_DEBUG("\n");
+
+        pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
+        err = IS_ERR(pdev);
+        if (err) {
+                printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
+                return -EINVAL;
+        }
+
+        switch (rdev->family) {
+        case CHIP_TAHITI:
+                chip_name = "TAHITI";
+                rlc_chip_name = "TAHITI";
+                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
+                me_req_size = SI_PM4_UCODE_SIZE * 4;
+                ce_req_size = SI_CE_UCODE_SIZE * 4;
+                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
+                mc_req_size = SI_MC_UCODE_SIZE * 4;
+                break;
+        case CHIP_PITCAIRN:
+                chip_name = "PITCAIRN";
+                rlc_chip_name = "PITCAIRN";
+                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
+                me_req_size = SI_PM4_UCODE_SIZE * 4;
+                ce_req_size = SI_CE_UCODE_SIZE * 4;
+                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
+                mc_req_size = SI_MC_UCODE_SIZE * 4;
+                break;
+        case CHIP_VERDE:
+                chip_name = "VERDE";
+                rlc_chip_name = "VERDE";
+                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
+                me_req_size = SI_PM4_UCODE_SIZE * 4;
+                ce_req_size = SI_CE_UCODE_SIZE * 4;
+                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
+                mc_req_size = SI_MC_UCODE_SIZE * 4;
+                break;
+        default: BUG();
+        }
+
+        DRM_INFO("Loading %s Microcode\n", chip_name);
+
+        snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
+        err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
+        if (err)
+                goto out;
+        if (rdev->pfp_fw->size != pfp_req_size) {
+                printk(KERN_ERR
+                       "si_cp: Bogus length %zu in firmware \"%s\"\n",
+                       rdev->pfp_fw->size, fw_name);
+                err = -EINVAL;
+                goto out;
+        }
+
+        snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
+        err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
+        if (err)
+                goto out;
+        if (rdev->me_fw->size != me_req_size) {
+                printk(KERN_ERR
+                       "si_cp: Bogus length %zu in firmware \"%s\"\n",
+                       rdev->me_fw->size, fw_name);
+                err = -EINVAL;
+        }
+
+        snprintf(fw_name, sizeof(fw_name), "radeon/%s_ce.bin", chip_name);
+        err = request_firmware(&rdev->ce_fw, fw_name, &pdev->dev);
+        if (err)
+                goto out;
+        if (rdev->ce_fw->size != ce_req_size) {
+                printk(KERN_ERR
+                       "si_cp: Bogus length %zu in firmware \"%s\"\n",
+                       rdev->ce_fw->size, fw_name);
+                err = -EINVAL;
+        }
+
+        snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
+        err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
+        if (err)
+                goto out;
+        if (rdev->rlc_fw->size != rlc_req_size) {
+                printk(KERN_ERR
+                       "si_rlc: Bogus length %zu in firmware \"%s\"\n",
+                       rdev->rlc_fw->size, fw_name);
+                err = -EINVAL;
+        }
+
+        snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
+        err = request_firmware(&rdev->mc_fw, fw_name, &pdev->dev);
+        if (err)
+                goto out;
+        if (rdev->mc_fw->size != mc_req_size) {
+                printk(KERN_ERR
+                       "si_mc: Bogus length %zu in firmware \"%s\"\n",
+                       rdev->mc_fw->size, fw_name);
+                err = -EINVAL;
+        }
+
+out:
+        platform_device_unregister(pdev);
+
+        if (err) {
+                if (err != -EINVAL)
+                        printk(KERN_ERR
+                               "si_cp: Failed to load firmware \"%s\"\n",
+                               fw_name);
+                release_firmware(rdev->pfp_fw);
+                rdev->pfp_fw = NULL;
+                release_firmware(rdev->me_fw);
+                rdev->me_fw = NULL;
+                release_firmware(rdev->ce_fw);
+                rdev->ce_fw = NULL;
+                release_firmware(rdev->rlc_fw);
+                rdev->rlc_fw = NULL;
+                release_firmware(rdev->mc_fw);
+                rdev->mc_fw = NULL;
+        }
+        return err;
+}