Commit 1241b64d authored by Jay Cornwall's avatar Jay Cornwall Committed by Alex Deucher
Browse files

drm/amdkfd: Clear MODE.VSKIP in gfx9 trap handler 



If user shader issues S_SETVSKIP then this state will persist when
executing the trap handler, causing vector instructions to be
skipped.

VSKIP state is already saved/restored through the MODE register.

Signed-off-by: default avatarJay Cornwall <jay.cornwall@amd.com>
Reviewed-by: default avatarLancelot Six <lancelot.six@amd.com>
Suggested-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a0db1ea0

drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler.h

+1363 −1358

File changed.

Preview size limit exceeded, changes collapsed.

drivers/gpu/drm/amd/amdkfd/cwsr_trap_handler_gfx9.asm

+3 −1
Original line number Diff line number Diff line
@@ -447,7 +447,9 @@ L_SAVE: 
    s_getreg_b32    s_save_m0, hwreg(HW_REG_MODE)						    //MODE

    write_hwreg_to_mem(s_save_m0, s_save_buf_rsrc0, s_save_mem_offset)





    // Clear VSKIP state now that MODE.VSKIP has been saved.

    // If user shader set it then vector instructions would be skipped.

    s_setvskip	0,0



    /*	    the first wave in the threadgroup	 */

    s_and_b32	    s_save_tmp, s_save_spi_init_hi, S_SAVE_SPI_INIT_FIRST_WAVE_MASK	// extract fisrt wave bit