Mesa (main): ac: add ac_gpu_info::has_stable_pstate

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Module: Mesa
Branch: main
Commit: cdf9a1a911c7015e433f430c0132ef116dce8d9f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=cdf9a1a911c7015e433f430c0132ef116dce8d9f

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Fri Dec  3 08:47:36 2021 +0100

ac: add ac_gpu_info::has_stable_pstate

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14038>

---

 src/amd/common/ac_gpu_info.c | 3 +++
 src/amd/common/ac_gpu_info.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/src/amd/common/ac_gpu_info.c b/src/amd/common/ac_gpu_info.c
index 3e51eecebbd..f48348754c6 100644
--- a/src/amd/common/ac_gpu_info.c
+++ b/src/amd/common/ac_gpu_info.c
@@ -1164,6 +1164,8 @@ bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info,
 
    info->has_gds_ordered_append = info->chip_class >= GFX7 && info->drm_minor >= 29;
 
+   info->has_stable_pstate = info->drm_minor >= 45;
+
    if (info->chip_class >= GFX9 && info->has_graphics) {
       unsigned pc_lines = 0;
 
@@ -1394,6 +1396,7 @@ void ac_print_gpu_info(struct radeon_info *info, FILE *f)
    fprintf(f, "    has_2d_tiling = %u\n", info->has_2d_tiling);
    fprintf(f, "    has_read_registers_query = %u\n", info->has_read_registers_query);
    fprintf(f, "    has_gds_ordered_append = %u\n", info->has_gds_ordered_append);
+   fprintf(f, "    has_stable_pstate = %u\n", info->has_stable_pstate);
    fprintf(f, "    has_scheduled_fence_dependency = %u\n", info->has_scheduled_fence_dependency);
    fprintf(f, "    mid_command_buffer_preemption_enabled = %u\n",
            info->mid_command_buffer_preemption_enabled);
diff --git a/src/amd/common/ac_gpu_info.h b/src/amd/common/ac_gpu_info.h
index 51e27f027cd..413ddeaaf06 100644
--- a/src/amd/common/ac_gpu_info.h
+++ b/src/amd/common/ac_gpu_info.h
@@ -187,6 +187,7 @@ struct radeon_info {
    bool has_read_registers_query;
    bool has_gds_ordered_append;
    bool has_scheduled_fence_dependency;
+   bool has_stable_pstate;
    /* Whether SR-IOV is enabled or amdgpu.mcbp=1 was set on the kernel command line. */
    bool mid_command_buffer_preemption_enabled;
    bool has_tmz_support;