drm/radeon: allow to force hard GPU reset.

In some cases, like when freezing for hibernation, we need to be
able to force hard reset even if no engine are stuck. This patch
add a bool option to current asic reset callback to allow to force
hard reset on asic that supports it.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index dd1a7b206a486e4323921d5bcff740cac42161b7..ba192a35c60771cbcd9461b6d127379ca17295b2 100644 (file)
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -5261,15 +5261,21 @@ static void cik_gpu_pci_config_reset(struct radeon_device *rdev)
  * cik_asic_reset - soft reset GPU
  *
  * @rdev: radeon_device pointer
+ * @hard: force hard reset
  *
  * Look up which blocks are hung and attempt
  * to reset them.
  * Returns 0 for success.
  */
-int cik_asic_reset(struct radeon_device *rdev)
+int cik_asic_reset(struct radeon_device *rdev, bool hard)
 {
        u32 reset_mask;
 
+       if (hard) {
+               cik_gpu_pci_config_reset(rdev);
+               return 0;
+       }
+
        reset_mask = cik_gpu_check_soft_reset(rdev);
 
        if (reset_mask)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index cc0cf9addf656dfb2a010c9999ec272520ca0516..e483b0752866a6541d6809bf74bf17771e6c1379 100644 (file)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3984,10 +3984,15 @@ void evergreen_gpu_pci_config_reset(struct radeon_device *rdev)
        }
 }
 
-int evergreen_asic_reset(struct radeon_device *rdev)
+int evergreen_asic_reset(struct radeon_device *rdev, bool hard)
 {
        u32 reset_mask;
 
+       if (hard) {
+               evergreen_gpu_pci_config_reset(rdev);
+               return 0;
+       }
+
        reset_mask = evergreen_gpu_check_soft_reset(rdev);
 
        if (reset_mask)

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index ec0aac8d455fba4da910519ac251a7d7bf589e11..4a3d7cab83f7a554aea1a21b309815bc83f1900c 100644 (file)
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1959,10 +1959,15 @@ static void cayman_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
        evergreen_print_gpu_status_regs(rdev);
 }
 
-int cayman_asic_reset(struct radeon_device *rdev)
+int cayman_asic_reset(struct radeon_device *rdev, bool hard)
 {
        u32 reset_mask;
 
+       if (hard) {
+               evergreen_gpu_pci_config_reset(rdev);
+               return 0;
+       }
+
        reset_mask = cayman_gpu_check_soft_reset(rdev);
 
        if (reset_mask)

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 6e478a248628bf62904befd7cfcfea5075081d08..bbdf15fc915356e9aee9a9afd6b10b7292d98571 100644 (file)
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2555,7 +2555,7 @@ void r100_bm_disable(struct radeon_device *rdev)
        mdelay(1);
 }
 
-int r100_asic_reset(struct radeon_device *rdev)
+int r100_asic_reset(struct radeon_device *rdev, bool hard)
 {
        struct r100_mc_save save;
        u32 status, tmp;

diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 718b12b03b570de5687af46d97ef123dc130c961..7e417d8dc733157c1c3c397246619334c1cc3cc9 100644 (file)
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -410,7 +410,7 @@ static void r300_gpu_init(struct radeon_device *rdev)
                 rdev->num_gb_pipes, rdev->num_z_pipes);
 }
 
-int r300_asic_reset(struct radeon_device *rdev)
+int r300_asic_reset(struct radeon_device *rdev, bool hard)
 {
        struct r100_mc_save save;
        u32 status, tmp;

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 24fa982522ee891f3d970203a5686d2531122da5..d7896bb553a9c0eb123b9f507a56dc7d9da9804c 100644 (file)
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1871,10 +1871,15 @@ static void r600_gpu_pci_config_reset(struct radeon_device *rdev)
        }
 }
 
-int r600_asic_reset(struct radeon_device *rdev)
+int r600_asic_reset(struct radeon_device *rdev, bool hard)
 {
        u32 reset_mask;
 
+       if (hard) {
+               r600_gpu_pci_config_reset(rdev);
+               return 0;
+       }
+
        reset_mask = r600_gpu_check_soft_reset(rdev);
 
        if (reset_mask)

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 91828ecf39cf4a5bc35c14383c283b1bf68d44cb..1ededd1a86f53b89c9e0b52f018172c09d746181 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1854,7 +1854,7 @@ struct radeon_asic {
        int (*resume)(struct radeon_device *rdev);
        int (*suspend)(struct radeon_device *rdev);
        void (*vga_set_state)(struct radeon_device *rdev, bool state);
-       int (*asic_reset)(struct radeon_device *rdev);
+       int (*asic_reset)(struct radeon_device *rdev, bool hard);
        /* Flush the HDP cache via MMIO */
        void (*mmio_hdp_flush)(struct radeon_device *rdev);
        /* check if 3D engine is idle */
@@ -2720,7 +2720,7 @@ static inline void radeon_ring_write(struct radeon_ring *ring, uint32_t v)
 #define radeon_suspend(rdev) (rdev)->asic->suspend((rdev))
 #define radeon_cs_parse(rdev, r, p) (rdev)->asic->ring[(r)]->cs_parse((p))
 #define radeon_vga_set_state(rdev, state) (rdev)->asic->vga_set_state((rdev), (state))
-#define radeon_asic_reset(rdev) (rdev)->asic->asic_reset((rdev))
+#define radeon_asic_reset(rdev) (rdev)->asic->asic_reset((rdev), false)
 #define radeon_gart_tlb_flush(rdev) (rdev)->asic->gart.tlb_flush((rdev))
 #define radeon_gart_get_page_entry(a, f) (rdev)->asic->gart.get_page_entry((a), (f))
 #define radeon_gart_set_page(rdev, i, e) (rdev)->asic->gart.set_page((rdev), (i), (e))

diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index e0aa33262eac62126e73984292e2658b310305ba..7675dfaaa005e9b7ebcd13ce5a136a0cbd69a1da 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -64,7 +64,7 @@ int r100_suspend(struct radeon_device *rdev);
 int r100_resume(struct radeon_device *rdev);
 void r100_vga_set_state(struct radeon_device *rdev, bool state);
 bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int r100_asic_reset(struct radeon_device *rdev);
+int r100_asic_reset(struct radeon_device *rdev, bool hard);
 u32 r100_get_vblank_counter(struct radeon_device *rdev, int crtc);
 void r100_pci_gart_tlb_flush(struct radeon_device *rdev);
 uint64_t r100_pci_gart_get_page_entry(uint64_t addr, uint32_t flags);
@@ -167,7 +167,7 @@ extern int r300_init(struct radeon_device *rdev);
 extern void r300_fini(struct radeon_device *rdev);
 extern int r300_suspend(struct radeon_device *rdev);
 extern int r300_resume(struct radeon_device *rdev);
-extern int r300_asic_reset(struct radeon_device *rdev);
+extern int r300_asic_reset(struct radeon_device *rdev, bool hard);
 extern void r300_ring_start(struct radeon_device *rdev, struct radeon_ring *ring);
 extern void r300_fence_ring_emit(struct radeon_device *rdev,
                                struct radeon_fence *fence);
@@ -225,7 +225,7 @@ extern int rs400_mc_wait_for_idle(struct radeon_device *rdev);
 /*
  * rs600.
  */
-extern int rs600_asic_reset(struct radeon_device *rdev);
+extern int rs600_asic_reset(struct radeon_device *rdev, bool hard);
 extern int rs600_init(struct radeon_device *rdev);
 extern void rs600_fini(struct radeon_device *rdev);
 extern int rs600_suspend(struct radeon_device *rdev);
@@ -334,7 +334,7 @@ bool r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
 void r600_dma_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 bool r600_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring);
 bool r600_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int r600_asic_reset(struct radeon_device *rdev);
+int r600_asic_reset(struct radeon_device *rdev, bool hard);
 int r600_set_surface_reg(struct radeon_device *rdev, int reg,
                         uint32_t tiling_flags, uint32_t pitch,
                         uint32_t offset, uint32_t obj_size);
@@ -513,7 +513,7 @@ int evergreen_suspend(struct radeon_device *rdev);
 int evergreen_resume(struct radeon_device *rdev);
 bool evergreen_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 bool evergreen_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int evergreen_asic_reset(struct radeon_device *rdev);
+int evergreen_asic_reset(struct radeon_device *rdev, bool hard);
 void evergreen_bandwidth_update(struct radeon_device *rdev);
 void evergreen_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 void evergreen_hpd_init(struct radeon_device *rdev);
@@ -606,7 +606,7 @@ int cayman_init(struct radeon_device *rdev);
 void cayman_fini(struct radeon_device *rdev);
 int cayman_suspend(struct radeon_device *rdev);
 int cayman_resume(struct radeon_device *rdev);
-int cayman_asic_reset(struct radeon_device *rdev);
+int cayman_asic_reset(struct radeon_device *rdev, bool hard);
 void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int cayman_vm_init(struct radeon_device *rdev);
 void cayman_vm_fini(struct radeon_device *rdev);
@@ -712,7 +712,7 @@ int si_suspend(struct radeon_device *rdev);
 int si_resume(struct radeon_device *rdev);
 bool si_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 bool si_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int si_asic_reset(struct radeon_device *rdev);
+int si_asic_reset(struct radeon_device *rdev, bool hard);
 void si_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int si_irq_set(struct radeon_device *rdev);
 int si_irq_process(struct radeon_device *rdev);
@@ -817,7 +817,7 @@ void cik_fini(struct radeon_device *rdev);
 int cik_suspend(struct radeon_device *rdev);
 int cik_resume(struct radeon_device *rdev);
 bool cik_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
-int cik_asic_reset(struct radeon_device *rdev);
+int cik_asic_reset(struct radeon_device *rdev, bool hard);
 void cik_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int cik_ring_test(struct radeon_device *rdev, struct radeon_ring *ring);
 int cik_ib_test(struct radeon_device *rdev, struct radeon_ring *ring);

diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 6244f4e44e9a541d15d5a76ac36beff8822c3145..3c250c445bdb66376c63e9ef53065091b7c02f86 100644 (file)
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -444,7 +444,7 @@ void rs600_hpd_fini(struct radeon_device *rdev)
        radeon_irq_kms_disable_hpd(rdev, disable);
 }
 
-int rs600_asic_reset(struct radeon_device *rdev)
+int rs600_asic_reset(struct radeon_device *rdev, bool hard)
 {
        struct rv515_mc_save save;
        u32 status, tmp;

diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 9ef41188b814a356d2a41f982032f27dbc482e3b..7afe825ee561aa4b32265e1703651384d687309d 100644 (file)
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -4034,10 +4034,15 @@ static void si_gpu_pci_config_reset(struct radeon_device *rdev)
        }
 }
 
-int si_asic_reset(struct radeon_device *rdev)
+int si_asic_reset(struct radeon_device *rdev, bool hard)
 {
        u32 reset_mask;
 
+       if (hard) {
+               si_gpu_pci_config_reset(rdev);
+               return 0;
+       }
+
        reset_mask = si_gpu_check_soft_reset(rdev);
 
        if (reset_mask)