[PATCH 07/15] drm/radeon/kms: add cayman asic reset support
Alex Deucher
alexdeucher at gmail.com
Wed Mar 2 17:07:33 PST 2011
Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
---
drivers/gpu/drm/radeon/evergreen.c | 6 +-
drivers/gpu/drm/radeon/ni.c | 97 ++++++++++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/nid.h | 1 +
3 files changed, 101 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index f643133..91c0204 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -804,7 +804,7 @@ void evergreen_bandwidth_update(struct radeon_device *rdev)
}
}
-static int evergreen_mc_wait_for_idle(struct radeon_device *rdev)
+int evergreen_mc_wait_for_idle(struct radeon_device *rdev)
{
unsigned i;
u32 tmp;
@@ -957,7 +957,7 @@ void evergreen_agp_enable(struct radeon_device *rdev)
WREG32(VM_CONTEXT1_CNTL, 0);
}
-static void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
+void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
{
save->vga_control[0] = RREG32(D1VGA_CONTROL);
save->vga_control[1] = RREG32(D2VGA_CONTROL);
@@ -1011,7 +1011,7 @@ static void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_sa
WREG32(EVERGREEN_D6VGA_CONTROL, 0);
}
-static void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)
+void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)
{
WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC0_REGISTER_OFFSET,
upper_32_bits(rdev->mc.vram_start));
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 0fecad2..3a3fdf5 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -33,6 +33,10 @@
#include "ni_reg.h"
#include "cayman_blit_shaders.h"
+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);
+extern int evergreen_mc_wait_for_idle(struct radeon_device *rdev);
+
#define EVERGREEN_PFP_UCODE_SIZE 1120
#define EVERGREEN_PM4_UCODE_SIZE 1376
#define EVERGREEN_RLC_UCODE_SIZE 768
@@ -1249,3 +1253,96 @@ int cayman_cp_resume(struct radeon_device *rdev)
return 0;
}
+bool cayman_gpu_is_lockup(struct radeon_device *rdev)
+{
+ u32 srbm_status;
+ u32 grbm_status;
+ u32 grbm_status_se0, grbm_status_se1;
+ struct r100_gpu_lockup *lockup = &rdev->config.cayman.lockup;
+ int r;
+
+ srbm_status = RREG32(SRBM_STATUS);
+ grbm_status = RREG32(GRBM_STATUS);
+ grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
+ grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
+ if (!(grbm_status & GUI_ACTIVE)) {
+ r100_gpu_lockup_update(lockup, &rdev->cp);
+ return false;
+ }
+ /* force CP activities */
+ r = radeon_ring_lock(rdev, 2);
+ if (!r) {
+ /* PACKET2 NOP */
+ radeon_ring_write(rdev, 0x80000000);
+ radeon_ring_write(rdev, 0x80000000);
+ radeon_ring_unlock_commit(rdev);
+ }
+ /* XXX deal with CP0,1,2 */
+ rdev->cp.rptr = RREG32(CP_RB0_RPTR);
+ return r100_gpu_cp_is_lockup(rdev, lockup, &rdev->cp);
+}
+
+static int cayman_gpu_soft_reset(struct radeon_device *rdev)
+{
+ struct evergreen_mc_save save;
+ u32 grbm_reset = 0;
+
+ if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
+ return 0;
+
+ dev_info(rdev->dev, "GPU softreset \n");
+ dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n",
+ RREG32(GRBM_STATUS));
+ dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n",
+ RREG32(GRBM_STATUS_SE0));
+ dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n",
+ RREG32(GRBM_STATUS_SE1));
+ dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n",
+ RREG32(SRBM_STATUS));
+ evergreen_mc_stop(rdev, &save);
+ if (evergreen_mc_wait_for_idle(rdev)) {
+ dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
+ }
+ /* Disable CP parsing/prefetching */
+ WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
+
+ /* reset all the gfx blocks */
+ grbm_reset = (SOFT_RESET_CP |
+ SOFT_RESET_CB |
+ SOFT_RESET_DB |
+ SOFT_RESET_GDS |
+ SOFT_RESET_PA |
+ SOFT_RESET_SC |
+ SOFT_RESET_SPI |
+ SOFT_RESET_SH |
+ SOFT_RESET_SX |
+ SOFT_RESET_TC |
+ SOFT_RESET_TA |
+ SOFT_RESET_VGT |
+ SOFT_RESET_IA);
+
+ dev_info(rdev->dev, " GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
+ WREG32(GRBM_SOFT_RESET, grbm_reset);
+ (void)RREG32(GRBM_SOFT_RESET);
+ udelay(50);
+ WREG32(GRBM_SOFT_RESET, 0);
+ (void)RREG32(GRBM_SOFT_RESET);
+ /* Wait a little for things to settle down */
+ udelay(50);
+ dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n",
+ RREG32(GRBM_STATUS));
+ dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n",
+ RREG32(GRBM_STATUS_SE0));
+ dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n",
+ RREG32(GRBM_STATUS_SE1));
+ dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n",
+ RREG32(SRBM_STATUS));
+ evergreen_mc_resume(rdev, &save);
+ return 0;
+}
+
+int cayman_asic_reset(struct radeon_device *rdev)
+{
+ return cayman_gpu_soft_reset(rdev);
+}
+
diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h
index 57062f1..0f9a08b 100644
--- a/drivers/gpu/drm/radeon/nid.h
+++ b/drivers/gpu/drm/radeon/nid.h
@@ -42,6 +42,7 @@
#define CAYMAN_MAX_TCC_MASK 0xFF
#define DMIF_ADDR_CONFIG 0xBD4
+#define SRBM_STATUS 0x0E50
#define VM_CONTEXT0_REQUEST_RESPONSE 0x1470
#define REQUEST_TYPE(x) (((x) & 0xf) << 0)
--
1.7.1.1
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