drm/radeon: initialize save/restore buffer for pg on verde

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 84ed332..386bbdc 100644 (file)
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -77,6 +77,228 @@ extern u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev);
 extern void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
 extern bool evergreen_is_display_hung(struct radeon_device *rdev);
 
+static const u32 verde_rlc_save_restore_register_list[] =
+{
+       (0x8000 << 16) | (0x98f4 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x98f4 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0xe80 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0xe80 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x89bc >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x89bc >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x8c1c >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x8c1c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x98f0 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0xe7c >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x9148 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x9148 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9150 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x897c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8d8c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0xac54 >> 2),
+       0X00000000,
+       0x3,
+       (0x9c00 << 16) | (0x98f8 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9910 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9914 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9918 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x991c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9920 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9924 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9928 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x992c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9930 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9934 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9938 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x993c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9940 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9944 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9948 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x994c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9950 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9954 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9958 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x995c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9960 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9964 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9968 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x996c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9970 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9974 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9978 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x997c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9980 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9984 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9988 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x998c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8c00 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8c14 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8c04 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8c08 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x9b7c >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x9b7c >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0xe84 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0xe84 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x89c0 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x89c0 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x914c >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x914c >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x8c20 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x8c20 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x9354 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x9354 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9060 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9364 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9100 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x913c >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x90e0 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x90e4 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x90e8 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x90e0 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x90e4 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x90e8 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8bcc >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8b24 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x88c4 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8e50 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8c0c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8e58 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8e5c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9508 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x950c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9494 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0xac0c >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0xac10 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0xac14 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0xae00 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0xac08 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x88d4 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x88c8 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x88cc >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x89b0 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8b10 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x8a14 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9830 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9834 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9838 >> 2),
+       0x00000000,
+       (0x9c00 << 16) | (0x9a10 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x9870 >> 2),
+       0x00000000,
+       (0x8000 << 16) | (0x9874 >> 2),
+       0x00000000,
+       (0x8001 << 16) | (0x9870 >> 2),
+       0x00000000,
+       (0x8001 << 16) | (0x9874 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x9870 >> 2),
+       0x00000000,
+       (0x8040 << 16) | (0x9874 >> 2),
+       0x00000000,
+       (0x8041 << 16) | (0x9870 >> 2),
+       0x00000000,
+       (0x8041 << 16) | (0x9874 >> 2),
+       0x00000000,
+       0x00000000
+};
+
 static const u32 tahiti_golden_rlc_registers[] =
 {
        0xc424, 0xffffffff, 0x00601005,
@@ -4363,7 +4585,8 @@ void si_rlc_fini(struct radeon_device *rdev)
 
 int si_rlc_init(struct radeon_device *rdev)
 {
-       int r;
+       int r, i;
+       volatile u32 *dst_ptr;
 
        /* save restore block */
        if (rdev->rlc.save_restore_obj == NULL) {
@@ -4383,13 +4606,29 @@ int si_rlc_init(struct radeon_device *rdev)
        }
        r = radeon_bo_pin(rdev->rlc.save_restore_obj, RADEON_GEM_DOMAIN_VRAM,
                          &rdev->rlc.save_restore_gpu_addr);
-       radeon_bo_unreserve(rdev->rlc.save_restore_obj);
        if (r) {
+               radeon_bo_unreserve(rdev->rlc.save_restore_obj);
                dev_warn(rdev->dev, "(%d) pin RLC sr bo failed\n", r);
                si_rlc_fini(rdev);
                return r;
        }
 
+       if (rdev->family == CHIP_VERDE) {
+               r = radeon_bo_kmap(rdev->rlc.save_restore_obj, (void **)&rdev->rlc.sr_ptr);
+               if (r) {
+                       dev_warn(rdev->dev, "(%d) map RLC sr bo failed\n", r);
+                       si_rlc_fini(rdev);
+               return r;
+               }
+               /* write the sr buffer */
+               dst_ptr = rdev->rlc.sr_ptr;
+               for (i = 0; i < ARRAY_SIZE(verde_rlc_save_restore_register_list); i++) {
+                       dst_ptr[i] = verde_rlc_save_restore_register_list[i];
+               }
+               radeon_bo_kunmap(rdev->rlc.save_restore_obj);
+       }
+       radeon_bo_unreserve(rdev->rlc.save_restore_obj);
+
        /* clear state block */
        if (rdev->rlc.clear_state_obj == NULL) {
                r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,