gpu: nvgpu: change stall intr handling order

-Handle pbus and priv stall interrupts first.
 In general critical interrupts should be
 handled before any other non critical ones.

-Dump info enabled with gpu_dbg_intr if priv_ring
 interrupt is flagged by fmodel.

JIRA NVGPU-25

Change-Id: Iee767d8c9c933ceb57532c1b5a7fd7812daf1b6d
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: http://git-master/r/1311273
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c b/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c
index a44df1e8..90bd95ac 100644
--- a/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c
@@ -76,8 +76,6 @@ void gk20a_priv_ring_isr(struct gk20a *g)
         u32 gpc_stride = nvgpu_get_litter_value(g, GPU_LIT_GPC_STRIDE);
         struct gk20a_platform *platform = dev_get_drvdata(g->dev);
 
-        if (platform->is_fmodel)
-                return;
 
         status0 = gk20a_readl(g, pri_ringmaster_intr_status0_r());
         status1 = gk20a_readl(g, pri_ringmaster_intr_status1_r());
@@ -90,7 +88,6 @@ void gk20a_priv_ring_isr(struct gk20a *g)
             pri_ringmaster_intr_status0_overflow_fault_v(status0) != 0) {
                 gk20a_reset_priv_ring(g);
         }
-
         if (pri_ringmaster_intr_status0_gbl_write_error_sys_v(status0) != 0) {
                 gk20a_dbg(gpu_dbg_intr, "SYS write error. ADR %08x WRDAT %08x INFO %08x, CODE %08x",
                         gk20a_readl(g, pri_ringstation_sys_priv_error_adr_r()),
@@ -109,6 +106,9 @@ void gk20a_priv_ring_isr(struct gk20a *g)
                 }
         }
 
+        if (platform->is_fmodel)
+                return;
+
         cmd = gk20a_readl(g, pri_ringmaster_command_r());
         cmd = set_field(cmd, pri_ringmaster_command_cmd_m(),
                 pri_ringmaster_command_cmd_ack_interrupt_f());