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authorDave Airlie <airlied@redhat.com>2010-04-20 07:15:05 +0400
committerDave Airlie <airlied@redhat.com>2010-04-20 07:15:05 +0400
commit0bcb1d844ac638a4c4280f697d5bfac9791e9a70 (patch)
treec51aa8427a81cb64dded4d4f68bf1a1b8ad32041 /drivers/gpu/drm/radeon/rs600.c
parentc9c2625ff4fc4ce652e686f895059d2902c01ca0 (diff)
parent90aca4d2740255bd130ea71a91530b9920c70abe (diff)
downloadlinux-0bcb1d844ac638a4c4280f697d5bfac9791e9a70.tar.xz
Merge branch 'drm-radeon-lockup' into drm-core-next
* drm-radeon-lockup: drm/radeon/kms: simplify & improve GPU reset V2 drm/radeon/kms: rename gpu_reset to asic_reset drm/radeon/kms: fence cleanup + more reliable GPU lockup detection V4 Conflicts: drivers/gpu/drm/radeon/r300.c
Diffstat (limited to 'drivers/gpu/drm/radeon/rs600.c')
-rw-r--r--drivers/gpu/drm/radeon/rs600.c77
1 files changed, 74 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index a81bc7a21e14..5e3f21861f45 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -147,6 +147,78 @@ void rs600_hpd_fini(struct radeon_device *rdev)
}
}
+void rs600_bm_disable(struct radeon_device *rdev)
+{
+ u32 tmp;
+
+ /* disable bus mastering */
+ pci_read_config_word(rdev->pdev, 0x4, (u16*)&tmp);
+ pci_write_config_word(rdev->pdev, 0x4, tmp & 0xFFFB);
+ mdelay(1);
+}
+
+int rs600_asic_reset(struct radeon_device *rdev)
+{
+ u32 status, tmp;
+
+ struct rv515_mc_save save;
+
+ /* Stops all mc clients */
+ rv515_mc_stop(rdev, &save);
+ status = RREG32(R_000E40_RBBM_STATUS);
+ if (!G_000E40_GUI_ACTIVE(status)) {
+ return 0;
+ }
+ status = RREG32(R_000E40_RBBM_STATUS);
+ dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
+ /* stop CP */
+ WREG32(RADEON_CP_CSQ_CNTL, 0);
+ tmp = RREG32(RADEON_CP_RB_CNTL);
+ WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
+ WREG32(RADEON_CP_RB_RPTR_WR, 0);
+ WREG32(RADEON_CP_RB_WPTR, 0);
+ WREG32(RADEON_CP_RB_CNTL, tmp);
+ pci_save_state(rdev->pdev);
+ /* disable bus mastering */
+ rs600_bm_disable(rdev);
+ /* reset GA+VAP */
+ WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
+ S_0000F0_SOFT_RESET_GA(1));
+ RREG32(R_0000F0_RBBM_SOFT_RESET);
+ mdelay(500);
+ WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
+ mdelay(1);
+ status = RREG32(R_000E40_RBBM_STATUS);
+ dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
+ /* reset CP */
+ WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
+ RREG32(R_0000F0_RBBM_SOFT_RESET);
+ mdelay(500);
+ WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
+ mdelay(1);
+ status = RREG32(R_000E40_RBBM_STATUS);
+ dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
+ /* reset MC */
+ WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_MC(1));
+ RREG32(R_0000F0_RBBM_SOFT_RESET);
+ mdelay(500);
+ WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
+ mdelay(1);
+ status = RREG32(R_000E40_RBBM_STATUS);
+ dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
+ /* restore PCI & busmastering */
+ pci_restore_state(rdev->pdev);
+ /* Check if GPU is idle */
+ if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
+ dev_err(rdev->dev, "failed to reset GPU\n");
+ rdev->gpu_lockup = true;
+ return -1;
+ }
+ rv515_mc_resume(rdev, &save);
+ dev_info(rdev->dev, "GPU reset succeed\n");
+ return 0;
+}
+
/*
* GART.
*/
@@ -454,7 +526,6 @@ int rs600_mc_wait_for_idle(struct radeon_device *rdev)
void rs600_gpu_init(struct radeon_device *rdev)
{
- r100_hdp_reset(rdev);
r420_pipes_init(rdev);
/* Wait for mc idle */
if (rs600_mc_wait_for_idle(rdev))
@@ -601,7 +672,7 @@ int rs600_resume(struct radeon_device *rdev)
/* Resume clock before doing reset */
rv515_clock_startup(rdev);
/* Reset gpu before posting otherwise ATOM will enter infinite loop */
- if (radeon_gpu_reset(rdev)) {
+ if (radeon_asic_reset(rdev)) {
dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
RREG32(R_000E40_RBBM_STATUS),
RREG32(R_0007C0_CP_STAT));
@@ -664,7 +735,7 @@ int rs600_init(struct radeon_device *rdev)
return -EINVAL;
}
/* Reset gpu before posting otherwise ATOM will enter infinite loop */
- if (radeon_gpu_reset(rdev)) {
+ if (radeon_asic_reset(rdev)) {
dev_warn(rdev->dev,
"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
RREG32(R_000E40_RBBM_STATUS),